#include "bfd.h"
#include "sysdep.h"
#include "libiberty.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf-vxworks.h"
#include "elf/arm.h"
#ifndef NUM_ELEM
#define NUM_ELEM(a) (sizeof (a) / (sizeof (a)[0]))
#endif
#define RELOC_SECTION(HTAB, NAME) \
((HTAB)->use_rel ? ".rel" NAME : ".rela" NAME)
#define RELOC_SIZE(HTAB) \
((HTAB)->use_rel \
? sizeof (Elf32_External_Rel) \
: sizeof (Elf32_External_Rela))
#define SWAP_RELOC_IN(HTAB) \
((HTAB)->use_rel \
? bfd_elf32_swap_reloc_in \
: bfd_elf32_swap_reloca_in)
#define SWAP_RELOC_OUT(HTAB) \
((HTAB)->use_rel \
? bfd_elf32_swap_reloc_out \
: bfd_elf32_swap_reloca_out)
#define elf_info_to_howto 0
#define elf_info_to_howto_rel elf32_arm_info_to_howto
#define ARM_ELF_ABI_VERSION 0
#define ARM_ELF_OS_ABI_VERSION ELFOSABI_ARM
static struct elf_backend_data elf32_arm_vxworks_bed;
static reloc_howto_type elf32_arm_howto_table_1[] =
{
HOWTO (R_ARM_NONE,
0,
0,
0,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_NONE",
FALSE,
0,
0,
FALSE),
HOWTO (R_ARM_PC24,
2,
2,
24,
TRUE,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_ARM_PC24",
FALSE,
0x00ffffff,
0x00ffffff,
TRUE),
HOWTO (R_ARM_ABS32,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_ABS32",
FALSE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_REL32,
0,
2,
32,
TRUE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_REL32",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_LDR_PC_G0,
0,
0,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_LDR_PC_G0",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_ABS16,
0,
1,
16,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_ABS16",
FALSE,
0x0000ffff,
0x0000ffff,
FALSE),
HOWTO (R_ARM_ABS12,
0,
2,
12,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_ABS12",
FALSE,
0x00000fff,
0x00000fff,
FALSE),
HOWTO (R_ARM_THM_ABS5,
6,
1,
5,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_THM_ABS5",
FALSE,
0x000007e0,
0x000007e0,
FALSE),
HOWTO (R_ARM_ABS8,
0,
0,
8,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_ABS8",
FALSE,
0x000000ff,
0x000000ff,
FALSE),
HOWTO (R_ARM_SBREL32,
0,
2,
32,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_SBREL32",
FALSE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_THM_CALL,
1,
2,
25,
TRUE,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_ARM_THM_CALL",
FALSE,
0x07ff07ff,
0x07ff07ff,
TRUE),
HOWTO (R_ARM_THM_PC8,
1,
1,
8,
TRUE,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_ARM_THM_PC8",
FALSE,
0x000000ff,
0x000000ff,
TRUE),
HOWTO (R_ARM_BREL_ADJ,
1,
1,
32,
FALSE,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_ARM_BREL_ADJ",
FALSE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_SWI24,
0,
0,
0,
FALSE,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_ARM_SWI24",
FALSE,
0x00000000,
0x00000000,
FALSE),
HOWTO (R_ARM_THM_SWI8,
0,
0,
0,
FALSE,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_ARM_SWI8",
FALSE,
0x00000000,
0x00000000,
FALSE),
HOWTO (R_ARM_XPC25,
2,
2,
25,
TRUE,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_ARM_XPC25",
FALSE,
0x00ffffff,
0x00ffffff,
TRUE),
HOWTO (R_ARM_THM_XPC22,
2,
2,
22,
TRUE,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_ARM_THM_XPC22",
FALSE,
0x07ff07ff,
0x07ff07ff,
TRUE),
HOWTO (R_ARM_TLS_DTPMOD32,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_TLS_DTPMOD32",
TRUE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_TLS_DTPOFF32,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_TLS_DTPOFF32",
TRUE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_TLS_TPOFF32,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_TLS_TPOFF32",
TRUE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_COPY,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_COPY",
TRUE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_GLOB_DAT,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_GLOB_DAT",
TRUE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_JUMP_SLOT,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_JUMP_SLOT",
TRUE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_RELATIVE,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_RELATIVE",
TRUE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_GOTOFF32,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_GOTOFF32",
TRUE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_GOTPC,
0,
2,
32,
TRUE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_GOTPC",
TRUE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_GOT32,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_GOT32",
TRUE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_PLT32,
2,
2,
24,
TRUE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_PLT32",
FALSE,
0x00ffffff,
0x00ffffff,
TRUE),
HOWTO (R_ARM_CALL,
2,
2,
24,
TRUE,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_ARM_CALL",
FALSE,
0x00ffffff,
0x00ffffff,
TRUE),
HOWTO (R_ARM_JUMP24,
2,
2,
24,
TRUE,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_ARM_JUMP24",
FALSE,
0x00ffffff,
0x00ffffff,
TRUE),
HOWTO (R_ARM_THM_JUMP24,
1,
2,
24,
TRUE,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_ARM_THM_JUMP24",
FALSE,
0x07ff2fff,
0x07ff2fff,
TRUE),
HOWTO (R_ARM_BASE_ABS,
0,
2,
32,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_BASE_ABS",
FALSE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_ALU_PCREL7_0,
0,
2,
12,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_ALU_PCREL_7_0",
FALSE,
0x00000fff,
0x00000fff,
TRUE),
HOWTO (R_ARM_ALU_PCREL15_8,
0,
2,
12,
TRUE,
8,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_ALU_PCREL_15_8",
FALSE,
0x00000fff,
0x00000fff,
TRUE),
HOWTO (R_ARM_ALU_PCREL23_15,
0,
2,
12,
TRUE,
16,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_ALU_PCREL_23_15",
FALSE,
0x00000fff,
0x00000fff,
TRUE),
HOWTO (R_ARM_LDR_SBREL_11_0,
0,
2,
12,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_LDR_SBREL_11_0",
FALSE,
0x00000fff,
0x00000fff,
FALSE),
HOWTO (R_ARM_ALU_SBREL_19_12,
0,
2,
8,
FALSE,
12,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_ALU_SBREL_19_12",
FALSE,
0x000ff000,
0x000ff000,
FALSE),
HOWTO (R_ARM_ALU_SBREL_27_20,
0,
2,
8,
FALSE,
20,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_ALU_SBREL_27_20",
FALSE,
0x0ff00000,
0x0ff00000,
FALSE),
HOWTO (R_ARM_TARGET1,
0,
2,
32,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_TARGET1",
FALSE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_ROSEGREL32,
0,
2,
32,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_ROSEGREL32",
FALSE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_V4BX,
0,
2,
32,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_V4BX",
FALSE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_TARGET2,
0,
2,
32,
FALSE,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_ARM_TARGET2",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_PREL31,
0,
2,
31,
TRUE,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_ARM_PREL31",
FALSE,
0x7fffffff,
0x7fffffff,
TRUE),
HOWTO (R_ARM_MOVW_ABS_NC,
0,
2,
16,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_MOVW_ABS_NC",
FALSE,
0x0000ffff,
0x0000ffff,
FALSE),
HOWTO (R_ARM_MOVT_ABS,
0,
2,
16,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_MOVT_ABS",
FALSE,
0x0000ffff,
0x0000ffff,
FALSE),
HOWTO (R_ARM_MOVW_PREL_NC,
0,
2,
16,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_MOVW_PREL_NC",
FALSE,
0x0000ffff,
0x0000ffff,
TRUE),
HOWTO (R_ARM_MOVT_PREL,
0,
2,
16,
TRUE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_MOVT_PREL",
FALSE,
0x0000ffff,
0x0000ffff,
TRUE),
HOWTO (R_ARM_THM_MOVW_ABS_NC,
0,
2,
16,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_THM_MOVW_ABS_NC",
FALSE,
0x040f70ff,
0x040f70ff,
FALSE),
HOWTO (R_ARM_THM_MOVT_ABS,
0,
2,
16,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_THM_MOVT_ABS",
FALSE,
0x040f70ff,
0x040f70ff,
FALSE),
HOWTO (R_ARM_THM_MOVW_PREL_NC,
0,
2,
16,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_THM_MOVW_PREL_NC",
FALSE,
0x040f70ff,
0x040f70ff,
TRUE),
HOWTO (R_ARM_THM_MOVT_PREL,
0,
2,
16,
TRUE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_THM_MOVT_PREL",
FALSE,
0x040f70ff,
0x040f70ff,
TRUE),
HOWTO (R_ARM_THM_JUMP19,
1,
2,
19,
TRUE,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_ARM_THM_JUMP19",
FALSE,
0x043f2fff,
0x043f2fff,
TRUE),
HOWTO (R_ARM_THM_JUMP6,
1,
1,
6,
TRUE,
0,
complain_overflow_unsigned,
bfd_elf_generic_reloc,
"R_ARM_THM_JUMP6",
FALSE,
0x02f8,
0x02f8,
TRUE),
HOWTO (R_ARM_THM_ALU_PREL_11_0,
0,
2,
13,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_THM_ALU_PREL_11_0",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_THM_PC12,
0,
2,
13,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_THM_PC12",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_ABS32_NOI,
0,
2,
32,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_ABS32_NOI",
FALSE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_REL32_NOI,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_REL32_NOI",
FALSE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_ALU_PC_G0_NC,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_ALU_PC_G0_NC",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_ALU_PC_G0,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_ALU_PC_G0",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_ALU_PC_G1_NC,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_ALU_PC_G1_NC",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_ALU_PC_G1,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_ALU_PC_G1",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_ALU_PC_G2,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_ALU_PC_G2",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_LDR_PC_G1,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_LDR_PC_G1",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_LDR_PC_G2,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_LDR_PC_G2",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_LDRS_PC_G0,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_LDRS_PC_G0",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_LDRS_PC_G1,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_LDRS_PC_G1",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_LDRS_PC_G2,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_LDRS_PC_G2",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_LDC_PC_G0,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_LDC_PC_G0",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_LDC_PC_G1,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_LDC_PC_G1",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_LDC_PC_G2,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_LDC_PC_G2",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_ALU_SB_G0_NC,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_ALU_SB_G0_NC",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_ALU_SB_G0,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_ALU_SB_G0",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_ALU_SB_G1_NC,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_ALU_SB_G1_NC",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_ALU_SB_G1,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_ALU_SB_G1",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_ALU_SB_G2,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_ALU_SB_G2",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_LDR_SB_G0,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_LDR_SB_G0",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_LDR_SB_G1,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_LDR_SB_G1",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_LDR_SB_G2,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_LDR_SB_G2",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_LDRS_SB_G0,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_LDRS_SB_G0",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_LDRS_SB_G1,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_LDRS_SB_G1",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_LDRS_SB_G2,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_LDRS_SB_G2",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_LDC_SB_G0,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_LDC_SB_G0",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_LDC_SB_G1,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_LDC_SB_G1",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_LDC_SB_G2,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_LDC_SB_G2",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_MOVW_BREL_NC,
0,
2,
16,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_MOVW_BREL_NC",
FALSE,
0x0000ffff,
0x0000ffff,
FALSE),
HOWTO (R_ARM_MOVT_BREL,
0,
2,
16,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_MOVT_BREL",
FALSE,
0x0000ffff,
0x0000ffff,
FALSE),
HOWTO (R_ARM_MOVW_BREL,
0,
2,
16,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_MOVW_BREL",
FALSE,
0x0000ffff,
0x0000ffff,
FALSE),
HOWTO (R_ARM_THM_MOVW_BREL_NC,
0,
2,
16,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_THM_MOVW_BREL_NC",
FALSE,
0x040f70ff,
0x040f70ff,
FALSE),
HOWTO (R_ARM_THM_MOVT_BREL,
0,
2,
16,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_THM_MOVT_BREL",
FALSE,
0x040f70ff,
0x040f70ff,
FALSE),
HOWTO (R_ARM_THM_MOVW_BREL,
0,
2,
16,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_THM_MOVW_BREL",
FALSE,
0x040f70ff,
0x040f70ff,
FALSE),
EMPTY_HOWTO (90),
EMPTY_HOWTO (91),
EMPTY_HOWTO (92),
EMPTY_HOWTO (93),
HOWTO (R_ARM_PLT32_ABS,
0,
2,
32,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_PLT32_ABS",
FALSE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_GOT_ABS,
0,
2,
32,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_GOT_ABS",
FALSE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_GOT_PREL,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_GOT_PREL",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ARM_GOT_BREL12,
0,
2,
12,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_GOT_BREL12",
FALSE,
0x00000fff,
0x00000fff,
FALSE),
HOWTO (R_ARM_GOTOFF12,
0,
2,
12,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_GOTOFF12",
FALSE,
0x00000fff,
0x00000fff,
FALSE),
EMPTY_HOWTO (R_ARM_GOTRELAX),
HOWTO (R_ARM_GNU_VTENTRY,
0,
2,
0,
FALSE,
0,
complain_overflow_dont,
_bfd_elf_rel_vtable_reloc_fn,
"R_ARM_GNU_VTENTRY",
FALSE,
0,
0,
FALSE),
HOWTO (R_ARM_GNU_VTINHERIT,
0,
2,
0,
FALSE,
0,
complain_overflow_dont,
NULL,
"R_ARM_GNU_VTINHERIT",
FALSE,
0,
0,
FALSE),
HOWTO (R_ARM_THM_JUMP11,
1,
1,
11,
TRUE,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_ARM_THM_JUMP11",
FALSE,
0x000007ff,
0x000007ff,
TRUE),
HOWTO (R_ARM_THM_JUMP8,
1,
1,
8,
TRUE,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_ARM_THM_JUMP8",
FALSE,
0x000000ff,
0x000000ff,
TRUE),
HOWTO (R_ARM_TLS_GD32,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
NULL,
"R_ARM_TLS_GD32",
TRUE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_TLS_LDM32,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_TLS_LDM32",
TRUE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_TLS_LDO32,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_TLS_LDO32",
TRUE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_TLS_IE32,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
NULL,
"R_ARM_TLS_IE32",
TRUE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_TLS_LE32,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_TLS_LE32",
TRUE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ARM_TLS_LDO12,
0,
2,
12,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_TLS_LDO12",
FALSE,
0x00000fff,
0x00000fff,
FALSE),
HOWTO (R_ARM_TLS_LE12,
0,
2,
12,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_TLS_LE12",
FALSE,
0x00000fff,
0x00000fff,
FALSE),
HOWTO (R_ARM_TLS_IE12GP,
0,
2,
12,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_ARM_TLS_IE12GP",
FALSE,
0x00000fff,
0x00000fff,
FALSE),
};
static reloc_howto_type elf32_arm_howto_table_2[4] =
{
HOWTO (R_ARM_RREL32,
0,
0,
0,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_RREL32",
FALSE,
0,
0,
FALSE),
HOWTO (R_ARM_RABS32,
0,
0,
0,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_RABS32",
FALSE,
0,
0,
FALSE),
HOWTO (R_ARM_RPC24,
0,
0,
0,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_RPC24",
FALSE,
0,
0,
FALSE),
HOWTO (R_ARM_RBASE,
0,
0,
0,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_ARM_RBASE",
FALSE,
0,
0,
FALSE)
};
static reloc_howto_type *
elf32_arm_howto_from_type (unsigned int r_type)
{
if (r_type < NUM_ELEM (elf32_arm_howto_table_1))
return &elf32_arm_howto_table_1[r_type];
if (r_type >= R_ARM_RREL32
&& r_type < R_ARM_RREL32 + NUM_ELEM (elf32_arm_howto_table_2))
return &elf32_arm_howto_table_2[r_type - R_ARM_RREL32];
return NULL;
}
static void
elf32_arm_info_to_howto (bfd * abfd ATTRIBUTE_UNUSED, arelent * bfd_reloc,
Elf_Internal_Rela * elf_reloc)
{
unsigned int r_type;
r_type = ELF32_R_TYPE (elf_reloc->r_info);
bfd_reloc->howto = elf32_arm_howto_from_type (r_type);
}
struct elf32_arm_reloc_map
{
bfd_reloc_code_real_type bfd_reloc_val;
unsigned char elf_reloc_val;
};
static const struct elf32_arm_reloc_map elf32_arm_reloc_map[] =
{
{BFD_RELOC_NONE, R_ARM_NONE},
{BFD_RELOC_ARM_PCREL_BRANCH, R_ARM_PC24},
{BFD_RELOC_ARM_PCREL_CALL, R_ARM_CALL},
{BFD_RELOC_ARM_PCREL_JUMP, R_ARM_JUMP24},
{BFD_RELOC_ARM_PCREL_BLX, R_ARM_XPC25},
{BFD_RELOC_THUMB_PCREL_BLX, R_ARM_THM_XPC22},
{BFD_RELOC_32, R_ARM_ABS32},
{BFD_RELOC_32_PCREL, R_ARM_REL32},
{BFD_RELOC_8, R_ARM_ABS8},
{BFD_RELOC_16, R_ARM_ABS16},
{BFD_RELOC_ARM_OFFSET_IMM, R_ARM_ABS12},
{BFD_RELOC_ARM_THUMB_OFFSET, R_ARM_THM_ABS5},
{BFD_RELOC_THUMB_PCREL_BRANCH25, R_ARM_THM_JUMP24},
{BFD_RELOC_THUMB_PCREL_BRANCH23, R_ARM_THM_CALL},
{BFD_RELOC_THUMB_PCREL_BRANCH12, R_ARM_THM_JUMP11},
{BFD_RELOC_THUMB_PCREL_BRANCH20, R_ARM_THM_JUMP19},
{BFD_RELOC_THUMB_PCREL_BRANCH9, R_ARM_THM_JUMP8},
{BFD_RELOC_THUMB_PCREL_BRANCH7, R_ARM_THM_JUMP6},
{BFD_RELOC_ARM_GLOB_DAT, R_ARM_GLOB_DAT},
{BFD_RELOC_ARM_JUMP_SLOT, R_ARM_JUMP_SLOT},
{BFD_RELOC_ARM_RELATIVE, R_ARM_RELATIVE},
{BFD_RELOC_ARM_GOTOFF, R_ARM_GOTOFF32},
{BFD_RELOC_ARM_GOTPC, R_ARM_GOTPC},
{BFD_RELOC_ARM_GOT32, R_ARM_GOT32},
{BFD_RELOC_ARM_PLT32, R_ARM_PLT32},
{BFD_RELOC_ARM_TARGET1, R_ARM_TARGET1},
{BFD_RELOC_ARM_ROSEGREL32, R_ARM_ROSEGREL32},
{BFD_RELOC_ARM_SBREL32, R_ARM_SBREL32},
{BFD_RELOC_ARM_PREL31, R_ARM_PREL31},
{BFD_RELOC_ARM_TARGET2, R_ARM_TARGET2},
{BFD_RELOC_ARM_PLT32, R_ARM_PLT32},
{BFD_RELOC_ARM_TLS_GD32, R_ARM_TLS_GD32},
{BFD_RELOC_ARM_TLS_LDO32, R_ARM_TLS_LDO32},
{BFD_RELOC_ARM_TLS_LDM32, R_ARM_TLS_LDM32},
{BFD_RELOC_ARM_TLS_DTPMOD32, R_ARM_TLS_DTPMOD32},
{BFD_RELOC_ARM_TLS_DTPOFF32, R_ARM_TLS_DTPOFF32},
{BFD_RELOC_ARM_TLS_TPOFF32, R_ARM_TLS_TPOFF32},
{BFD_RELOC_ARM_TLS_IE32, R_ARM_TLS_IE32},
{BFD_RELOC_ARM_TLS_LE32, R_ARM_TLS_LE32},
{BFD_RELOC_VTABLE_INHERIT, R_ARM_GNU_VTINHERIT},
{BFD_RELOC_VTABLE_ENTRY, R_ARM_GNU_VTENTRY},
{BFD_RELOC_ARM_MOVW, R_ARM_MOVW_ABS_NC},
{BFD_RELOC_ARM_MOVT, R_ARM_MOVT_ABS},
{BFD_RELOC_ARM_MOVW_PCREL, R_ARM_MOVW_PREL_NC},
{BFD_RELOC_ARM_MOVT_PCREL, R_ARM_MOVT_PREL},
{BFD_RELOC_ARM_THUMB_MOVW, R_ARM_THM_MOVW_ABS_NC},
{BFD_RELOC_ARM_THUMB_MOVT, R_ARM_THM_MOVT_ABS},
{BFD_RELOC_ARM_THUMB_MOVW_PCREL, R_ARM_THM_MOVW_PREL_NC},
{BFD_RELOC_ARM_THUMB_MOVT_PCREL, R_ARM_THM_MOVT_PREL},
{BFD_RELOC_ARM_ALU_PC_G0_NC, R_ARM_ALU_PC_G0_NC},
{BFD_RELOC_ARM_ALU_PC_G0, R_ARM_ALU_PC_G0},
{BFD_RELOC_ARM_ALU_PC_G1_NC, R_ARM_ALU_PC_G1_NC},
{BFD_RELOC_ARM_ALU_PC_G1, R_ARM_ALU_PC_G1},
{BFD_RELOC_ARM_ALU_PC_G2, R_ARM_ALU_PC_G2},
{BFD_RELOC_ARM_LDR_PC_G0, R_ARM_LDR_PC_G0},
{BFD_RELOC_ARM_LDR_PC_G1, R_ARM_LDR_PC_G1},
{BFD_RELOC_ARM_LDR_PC_G2, R_ARM_LDR_PC_G2},
{BFD_RELOC_ARM_LDRS_PC_G0, R_ARM_LDRS_PC_G0},
{BFD_RELOC_ARM_LDRS_PC_G1, R_ARM_LDRS_PC_G1},
{BFD_RELOC_ARM_LDRS_PC_G2, R_ARM_LDRS_PC_G2},
{BFD_RELOC_ARM_LDC_PC_G0, R_ARM_LDC_PC_G0},
{BFD_RELOC_ARM_LDC_PC_G1, R_ARM_LDC_PC_G1},
{BFD_RELOC_ARM_LDC_PC_G2, R_ARM_LDC_PC_G2},
{BFD_RELOC_ARM_ALU_SB_G0_NC, R_ARM_ALU_SB_G0_NC},
{BFD_RELOC_ARM_ALU_SB_G0, R_ARM_ALU_SB_G0},
{BFD_RELOC_ARM_ALU_SB_G1_NC, R_ARM_ALU_SB_G1_NC},
{BFD_RELOC_ARM_ALU_SB_G1, R_ARM_ALU_SB_G1},
{BFD_RELOC_ARM_ALU_SB_G2, R_ARM_ALU_SB_G2},
{BFD_RELOC_ARM_LDR_SB_G0, R_ARM_LDR_SB_G0},
{BFD_RELOC_ARM_LDR_SB_G1, R_ARM_LDR_SB_G1},
{BFD_RELOC_ARM_LDR_SB_G2, R_ARM_LDR_SB_G2},
{BFD_RELOC_ARM_LDRS_SB_G0, R_ARM_LDRS_SB_G0},
{BFD_RELOC_ARM_LDRS_SB_G1, R_ARM_LDRS_SB_G1},
{BFD_RELOC_ARM_LDRS_SB_G2, R_ARM_LDRS_SB_G2},
{BFD_RELOC_ARM_LDC_SB_G0, R_ARM_LDC_SB_G0},
{BFD_RELOC_ARM_LDC_SB_G1, R_ARM_LDC_SB_G1},
{BFD_RELOC_ARM_LDC_SB_G2, R_ARM_LDC_SB_G2}
};
static reloc_howto_type *
elf32_arm_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
bfd_reloc_code_real_type code)
{
unsigned int i;
for (i = 0; i < NUM_ELEM (elf32_arm_reloc_map); i ++)
if (elf32_arm_reloc_map[i].bfd_reloc_val == code)
return elf32_arm_howto_from_type (elf32_arm_reloc_map[i].elf_reloc_val);
return NULL;
}
static bfd_boolean
elf32_arm_nabi_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
{
int offset;
size_t size;
switch (note->descsz)
{
default:
return FALSE;
case 148:
elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
offset = 72;
size = 72;
break;
}
return _bfd_elfcore_make_pseudosection (abfd, ".reg",
size, note->descpos + offset);
}
static bfd_boolean
elf32_arm_nabi_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
{
switch (note->descsz)
{
default:
return FALSE;
case 124:
elf_tdata (abfd)->core_program
= _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
elf_tdata (abfd)->core_command
= _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
}
{
char *command = elf_tdata (abfd)->core_command;
int n = strlen (command);
if (0 < n && command[n - 1] == ' ')
command[n - 1] = '\0';
}
return TRUE;
}
#define TARGET_LITTLE_SYM bfd_elf32_littlearm_vec
#define TARGET_LITTLE_NAME "elf32-littlearm"
#define TARGET_BIG_SYM bfd_elf32_bigarm_vec
#define TARGET_BIG_NAME "elf32-bigarm"
#define elf_backend_grok_prstatus elf32_arm_nabi_grok_prstatus
#define elf_backend_grok_psinfo elf32_arm_nabi_grok_psinfo
typedef unsigned long int insn32;
typedef unsigned short int insn16;
#define INTERWORK_FLAG(abfd) \
(EF_ARM_EABI_VERSION (elf_elfheader (abfd)->e_flags) >= EF_ARM_EABI_VER4 \
|| (elf_elfheader (abfd)->e_flags & EF_ARM_INTERWORK))
#define THUMB2ARM_GLUE_SECTION_NAME ".glue_7t"
#define THUMB2ARM_GLUE_ENTRY_NAME "__%s_from_thumb"
#define ARM2THUMB_GLUE_SECTION_NAME ".glue_7"
#define ARM2THUMB_GLUE_ENTRY_NAME "__%s_from_arm"
#define VFP11_ERRATUM_VENEER_SECTION_NAME ".vfp11_veneer"
#define VFP11_ERRATUM_VENEER_ENTRY_NAME "__vfp11_veneer_%x"
#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
#ifdef FOUR_WORD_PLT
static const bfd_vma elf32_arm_plt0_entry [] =
{
0xe52de004,
0xe59fe010,
0xe08fe00e,
0xe5bef008,
};
static const bfd_vma elf32_arm_plt_entry [] =
{
0xe28fc600,
0xe28cca00,
0xe5bcf000,
0x00000000,
};
#else
static const bfd_vma elf32_arm_plt0_entry [] =
{
0xe52de004,
0xe59fe004,
0xe08fe00e,
0xe5bef008,
0x00000000,
};
static const bfd_vma elf32_arm_plt_entry [] =
{
0xe28fc600,
0xe28cca00,
0xe5bcf000,
};
#endif
static const bfd_vma elf32_arm_vxworks_exec_plt0_entry[] =
{
0xe52dc008,
0xe59fc000,
0xe59cf008,
0x00000000,
};
static const bfd_vma elf32_arm_vxworks_exec_plt_entry[] =
{
0xe59fc000,
0xe59cf000,
0x00000000,
0xe59fc000,
0xea000000,
0x00000000,
};
static const bfd_vma elf32_arm_vxworks_shared_plt_entry[] =
{
0xe59fc000,
0xe79cf009,
0x00000000,
0xe59fc000,
0xe599f008,
0x00000000,
};
#define PLT_THUMB_STUB_SIZE 4
static const bfd_vma elf32_arm_plt_thumb_stub [] =
{
0x4778,
0x46c0
};
static const bfd_vma elf32_arm_symbian_plt_entry [] =
{
0xe51ff004,
0x00000000,
};
typedef struct elf32_elf_section_map
{
bfd_vma vma;
char type;
}
elf32_arm_section_map;
typedef enum
{
VFP11_ERRATUM_BRANCH_TO_ARM_VENEER,
VFP11_ERRATUM_BRANCH_TO_THUMB_VENEER,
VFP11_ERRATUM_ARM_VENEER,
VFP11_ERRATUM_THUMB_VENEER
}
elf32_vfp11_erratum_type;
typedef struct elf32_vfp11_erratum_list
{
struct elf32_vfp11_erratum_list *next;
bfd_vma vma;
union
{
struct
{
struct elf32_vfp11_erratum_list *veneer;
unsigned int vfp_insn;
} b;
struct
{
struct elf32_vfp11_erratum_list *branch;
unsigned int id;
} v;
} u;
elf32_vfp11_erratum_type type;
}
elf32_vfp11_erratum_list;
typedef struct _arm_elf_section_data
{
struct bfd_elf_section_data elf;
unsigned int mapcount;
unsigned int mapsize;
elf32_arm_section_map *map;
unsigned int erratumcount;
elf32_vfp11_erratum_list *erratumlist;
}
_arm_elf_section_data;
#define elf32_arm_section_data(sec) \
((_arm_elf_section_data *) elf_section_data (sec))
#define TCB_SIZE 8
#define NUM_KNOWN_ATTRIBUTES 32
typedef struct aeabi_attribute
{
int type;
unsigned int i;
char *s;
} aeabi_attribute;
typedef struct aeabi_attribute_list
{
struct aeabi_attribute_list *next;
int tag;
aeabi_attribute attr;
} aeabi_attribute_list;
struct elf32_arm_obj_tdata
{
struct elf_obj_tdata root;
char *local_got_tls_type;
aeabi_attribute known_eabi_attributes[NUM_KNOWN_ATTRIBUTES];
aeabi_attribute_list *other_eabi_attributes;
};
#define elf32_arm_tdata(abfd) \
((struct elf32_arm_obj_tdata *) (abfd)->tdata.any)
#define elf32_arm_local_got_tls_type(abfd) \
(elf32_arm_tdata (abfd)->local_got_tls_type)
static bfd_boolean
elf32_arm_mkobject (bfd *abfd)
{
if (abfd->tdata.any == NULL)
{
bfd_size_type amt = sizeof (struct elf32_arm_obj_tdata);
abfd->tdata.any = bfd_zalloc (abfd, amt);
if (abfd->tdata.any == NULL)
return FALSE;
}
return bfd_elf_mkobject (abfd);
}
struct elf32_arm_relocs_copied
{
struct elf32_arm_relocs_copied * next;
asection * section;
bfd_size_type count;
bfd_size_type pc_count;
};
#define elf32_arm_hash_entry(ent) ((struct elf32_arm_link_hash_entry *)(ent))
struct elf32_arm_link_hash_entry
{
struct elf_link_hash_entry root;
struct elf32_arm_relocs_copied * relocs_copied;
bfd_signed_vma plt_thumb_refcount;
bfd_signed_vma plt_got_offset;
#define GOT_UNKNOWN 0
#define GOT_NORMAL 1
#define GOT_TLS_GD 2
#define GOT_TLS_IE 4
unsigned char tls_type;
struct elf_link_hash_entry *export_glue;
};
#define elf32_arm_link_hash_traverse(table, func, info) \
(elf_link_hash_traverse \
(&(table)->root, \
(bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
(info)))
#define elf32_arm_hash_table(info) \
((struct elf32_arm_link_hash_table *) ((info)->hash))
struct elf32_arm_link_hash_table
{
struct elf_link_hash_table root;
bfd_size_type thumb_glue_size;
bfd_size_type arm_glue_size;
bfd_size_type vfp11_erratum_glue_size;
bfd * bfd_of_glue_owner;
int byteswap_code;
int target1_is_rel;
int target2_reloc;
int fix_v4bx;
int use_blx;
bfd_arm_vfp11_fix vfp11_fix;
int num_vfp11_fixes;
bfd_size_type plt_header_size;
bfd_size_type plt_entry_size;
int vxworks_p;
int symbian_p;
int use_rel;
asection *sgot;
asection *sgotplt;
asection *srelgot;
asection *splt;
asection *srelplt;
asection *sdynbss;
asection *srelbss;
asection *srelplt2;
union {
bfd_signed_vma refcount;
bfd_vma offset;
} tls_ldm_got;
struct sym_sec_cache sym_sec;
bfd * obfd;
};
static struct bfd_hash_entry *
elf32_arm_link_hash_newfunc (struct bfd_hash_entry * entry,
struct bfd_hash_table * table,
const char * string)
{
struct elf32_arm_link_hash_entry * ret =
(struct elf32_arm_link_hash_entry *) entry;
if (ret == (struct elf32_arm_link_hash_entry *) NULL)
ret = bfd_hash_allocate (table, sizeof (struct elf32_arm_link_hash_entry));
if (ret == NULL)
return (struct bfd_hash_entry *) ret;
ret = ((struct elf32_arm_link_hash_entry *)
_bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
table, string));
if (ret != NULL)
{
ret->relocs_copied = NULL;
ret->tls_type = GOT_UNKNOWN;
ret->plt_thumb_refcount = 0;
ret->plt_got_offset = -1;
ret->export_glue = NULL;
}
return (struct bfd_hash_entry *) ret;
}
static bfd_boolean
reloc_section_p (struct elf32_arm_link_hash_table *htab,
const char *name, asection *s)
{
if (htab->use_rel)
return CONST_STRNEQ (name, ".rel") && strcmp (s->name, name + 4) == 0;
else
return CONST_STRNEQ (name, ".rela") && strcmp (s->name, name + 5) == 0;
}
static bfd_boolean
create_got_section (bfd *dynobj, struct bfd_link_info *info)
{
struct elf32_arm_link_hash_table *htab;
htab = elf32_arm_hash_table (info);
if (htab->symbian_p)
return TRUE;
if (! _bfd_elf_create_got_section (dynobj, info))
return FALSE;
htab->sgot = bfd_get_section_by_name (dynobj, ".got");
htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
if (!htab->sgot || !htab->sgotplt)
abort ();
htab->srelgot = bfd_make_section_with_flags (dynobj,
RELOC_SECTION (htab, ".got"),
(SEC_ALLOC | SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
| SEC_READONLY));
if (htab->srelgot == NULL
|| ! bfd_set_section_alignment (dynobj, htab->srelgot, 2))
return FALSE;
return TRUE;
}
static bfd_boolean
elf32_arm_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
{
struct elf32_arm_link_hash_table *htab;
htab = elf32_arm_hash_table (info);
if (!htab->sgot && !create_got_section (dynobj, info))
return FALSE;
if (!_bfd_elf_create_dynamic_sections (dynobj, info))
return FALSE;
htab->splt = bfd_get_section_by_name (dynobj, ".plt");
htab->srelplt = bfd_get_section_by_name (dynobj,
RELOC_SECTION (htab, ".plt"));
htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
if (!info->shared)
htab->srelbss = bfd_get_section_by_name (dynobj,
RELOC_SECTION (htab, ".bss"));
if (htab->vxworks_p)
{
if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
return FALSE;
if (info->shared)
{
htab->plt_header_size = 0;
htab->plt_entry_size
= 4 * ARRAY_SIZE (elf32_arm_vxworks_shared_plt_entry);
}
else
{
htab->plt_header_size
= 4 * ARRAY_SIZE (elf32_arm_vxworks_exec_plt0_entry);
htab->plt_entry_size
= 4 * ARRAY_SIZE (elf32_arm_vxworks_exec_plt_entry);
}
}
if (!htab->splt
|| !htab->srelplt
|| !htab->sdynbss
|| (!info->shared && !htab->srelbss))
abort ();
return TRUE;
}
static void
elf32_arm_copy_indirect_symbol (struct bfd_link_info *info,
struct elf_link_hash_entry *dir,
struct elf_link_hash_entry *ind)
{
struct elf32_arm_link_hash_entry *edir, *eind;
edir = (struct elf32_arm_link_hash_entry *) dir;
eind = (struct elf32_arm_link_hash_entry *) ind;
if (eind->relocs_copied != NULL)
{
if (edir->relocs_copied != NULL)
{
struct elf32_arm_relocs_copied **pp;
struct elf32_arm_relocs_copied *p;
for (pp = &eind->relocs_copied; (p = *pp) != NULL; )
{
struct elf32_arm_relocs_copied *q;
for (q = edir->relocs_copied; q != NULL; q = q->next)
if (q->section == p->section)
{
q->pc_count += p->pc_count;
q->count += p->count;
*pp = p->next;
break;
}
if (q == NULL)
pp = &p->next;
}
*pp = edir->relocs_copied;
}
edir->relocs_copied = eind->relocs_copied;
eind->relocs_copied = NULL;
}
if (ind->root.type == bfd_link_hash_indirect)
{
edir->plt_thumb_refcount += eind->plt_thumb_refcount;
eind->plt_thumb_refcount = 0;
if (dir->got.refcount <= 0)
{
edir->tls_type = eind->tls_type;
eind->tls_type = GOT_UNKNOWN;
}
}
_bfd_elf_link_hash_copy_indirect (info, dir, ind);
}
static struct bfd_link_hash_table *
elf32_arm_link_hash_table_create (bfd *abfd)
{
struct elf32_arm_link_hash_table *ret;
bfd_size_type amt = sizeof (struct elf32_arm_link_hash_table);
ret = bfd_malloc (amt);
if (ret == NULL)
return NULL;
if (!_bfd_elf_link_hash_table_init (& ret->root, abfd,
elf32_arm_link_hash_newfunc,
sizeof (struct elf32_arm_link_hash_entry)))
{
free (ret);
return NULL;
}
ret->sgot = NULL;
ret->sgotplt = NULL;
ret->srelgot = NULL;
ret->splt = NULL;
ret->srelplt = NULL;
ret->sdynbss = NULL;
ret->srelbss = NULL;
ret->srelplt2 = NULL;
ret->thumb_glue_size = 0;
ret->arm_glue_size = 0;
ret->vfp11_fix = BFD_ARM_VFP11_FIX_NONE;
ret->vfp11_erratum_glue_size = 0;
ret->num_vfp11_fixes = 0;
ret->bfd_of_glue_owner = NULL;
ret->byteswap_code = 0;
ret->target1_is_rel = 0;
ret->target2_reloc = R_ARM_NONE;
#ifdef FOUR_WORD_PLT
ret->plt_header_size = 16;
ret->plt_entry_size = 16;
#else
ret->plt_header_size = 20;
ret->plt_entry_size = 12;
#endif
ret->fix_v4bx = 0;
ret->use_blx = 0;
ret->vxworks_p = 0;
ret->symbian_p = 0;
ret->use_rel = 1;
ret->sym_sec.abfd = NULL;
ret->obfd = abfd;
ret->tls_ldm_got.refcount = 0;
return &ret->root.root;
}
static struct elf_link_hash_entry *
find_thumb_glue (struct bfd_link_info *link_info,
const char *name,
char **error_message)
{
char *tmp_name;
struct elf_link_hash_entry *hash;
struct elf32_arm_link_hash_table *hash_table;
hash_table = elf32_arm_hash_table (link_info);
tmp_name = bfd_malloc ((bfd_size_type) strlen (name)
+ strlen (THUMB2ARM_GLUE_ENTRY_NAME) + 1);
BFD_ASSERT (tmp_name);
sprintf (tmp_name, THUMB2ARM_GLUE_ENTRY_NAME, name);
hash = elf_link_hash_lookup
(&(hash_table)->root, tmp_name, FALSE, FALSE, TRUE);
if (hash == NULL)
asprintf (error_message, _("unable to find THUMB glue '%s' for '%s'"),
tmp_name, name);
free (tmp_name);
return hash;
}
static struct elf_link_hash_entry *
find_arm_glue (struct bfd_link_info *link_info,
const char *name,
char **error_message)
{
char *tmp_name;
struct elf_link_hash_entry *myh;
struct elf32_arm_link_hash_table *hash_table;
hash_table = elf32_arm_hash_table (link_info);
tmp_name = bfd_malloc ((bfd_size_type) strlen (name)
+ strlen (ARM2THUMB_GLUE_ENTRY_NAME) + 1);
BFD_ASSERT (tmp_name);
sprintf (tmp_name, ARM2THUMB_GLUE_ENTRY_NAME, name);
myh = elf_link_hash_lookup
(&(hash_table)->root, tmp_name, FALSE, FALSE, TRUE);
if (myh == NULL)
asprintf (error_message, _("unable to find ARM glue '%s' for '%s'"),
tmp_name, name);
free (tmp_name);
return myh;
}
#define ARM2THUMB_STATIC_GLUE_SIZE 12
static const insn32 a2t1_ldr_insn = 0xe59fc000;
static const insn32 a2t2_bx_r12_insn = 0xe12fff1c;
static const insn32 a2t3_func_addr_insn = 0x00000001;
#define ARM2THUMB_PIC_GLUE_SIZE 16
static const insn32 a2t1p_ldr_insn = 0xe59fc004;
static const insn32 a2t2p_add_pc_insn = 0xe08cc00f;
static const insn32 a2t3p_bx_r12_insn = 0xe12fff1c;
#define THUMB2ARM_GLUE_SIZE 8
static const insn16 t2a1_bx_pc_insn = 0x4778;
static const insn16 t2a2_noop_insn = 0x46c0;
static const insn32 t2a3_b_insn = 0xea000000;
#define VFP11_ERRATUM_VENEER_SIZE 8
#ifndef ELFARM_NABI_C_INCLUDED
bfd_boolean
bfd_elf32_arm_allocate_interworking_sections (struct bfd_link_info * info)
{
asection * s;
bfd_byte * foo;
struct elf32_arm_link_hash_table * globals;
globals = elf32_arm_hash_table (info);
BFD_ASSERT (globals != NULL);
if (globals->arm_glue_size != 0)
{
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
s = bfd_get_section_by_name (globals->bfd_of_glue_owner,
ARM2THUMB_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
foo = bfd_alloc (globals->bfd_of_glue_owner, globals->arm_glue_size);
BFD_ASSERT (s->size == globals->arm_glue_size);
s->contents = foo;
}
if (globals->thumb_glue_size != 0)
{
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
s = bfd_get_section_by_name
(globals->bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
foo = bfd_alloc (globals->bfd_of_glue_owner, globals->thumb_glue_size);
BFD_ASSERT (s->size == globals->thumb_glue_size);
s->contents = foo;
}
if (globals->vfp11_erratum_glue_size != 0)
{
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
s = bfd_get_section_by_name
(globals->bfd_of_glue_owner, VFP11_ERRATUM_VENEER_SECTION_NAME);
BFD_ASSERT (s != NULL);
foo = bfd_alloc (globals->bfd_of_glue_owner,
globals->vfp11_erratum_glue_size);
BFD_ASSERT (s->size == globals->vfp11_erratum_glue_size);
s->contents = foo;
}
return TRUE;
}
static struct elf_link_hash_entry *
record_arm_to_thumb_glue (struct bfd_link_info * link_info,
struct elf_link_hash_entry * h)
{
const char * name = h->root.root.string;
asection * s;
char * tmp_name;
struct elf_link_hash_entry * myh;
struct bfd_link_hash_entry * bh;
struct elf32_arm_link_hash_table * globals;
bfd_vma val;
bfd_size_type size;
globals = elf32_arm_hash_table (link_info);
BFD_ASSERT (globals != NULL);
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
s = bfd_get_section_by_name
(globals->bfd_of_glue_owner, ARM2THUMB_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
tmp_name = bfd_malloc ((bfd_size_type) strlen (name) + strlen (ARM2THUMB_GLUE_ENTRY_NAME) + 1);
BFD_ASSERT (tmp_name);
sprintf (tmp_name, ARM2THUMB_GLUE_ENTRY_NAME, name);
myh = elf_link_hash_lookup
(&(globals)->root, tmp_name, FALSE, FALSE, TRUE);
if (myh != NULL)
{
free (tmp_name);
return myh;
}
bh = NULL;
val = globals->arm_glue_size + 1;
_bfd_generic_link_add_one_symbol (link_info, globals->bfd_of_glue_owner,
tmp_name, BSF_GLOBAL, s, val,
NULL, TRUE, FALSE, &bh);
myh = (struct elf_link_hash_entry *) bh;
myh->type = ELF_ST_INFO (STB_LOCAL, STT_FUNC);
myh->forced_local = 1;
free (tmp_name);
if ((link_info->shared || globals->root.is_relocatable_executable))
size = ARM2THUMB_PIC_GLUE_SIZE;
else
size = ARM2THUMB_STATIC_GLUE_SIZE;
s->size += size;
globals->arm_glue_size += size;
return myh;
}
static void
record_thumb_to_arm_glue (struct bfd_link_info *link_info,
struct elf_link_hash_entry *h)
{
const char *name = h->root.root.string;
asection *s;
char *tmp_name;
struct elf_link_hash_entry *myh;
struct bfd_link_hash_entry *bh;
struct elf32_arm_link_hash_table *hash_table;
bfd_vma val;
hash_table = elf32_arm_hash_table (link_info);
BFD_ASSERT (hash_table != NULL);
BFD_ASSERT (hash_table->bfd_of_glue_owner != NULL);
s = bfd_get_section_by_name
(hash_table->bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
tmp_name = bfd_malloc ((bfd_size_type) strlen (name)
+ strlen (THUMB2ARM_GLUE_ENTRY_NAME) + 1);
BFD_ASSERT (tmp_name);
sprintf (tmp_name, THUMB2ARM_GLUE_ENTRY_NAME, name);
myh = elf_link_hash_lookup
(&(hash_table)->root, tmp_name, FALSE, FALSE, TRUE);
if (myh != NULL)
{
free (tmp_name);
return;
}
bh = NULL;
val = hash_table->thumb_glue_size + 1;
_bfd_generic_link_add_one_symbol (link_info, hash_table->bfd_of_glue_owner,
tmp_name, BSF_GLOBAL, s, val,
NULL, TRUE, FALSE, &bh);
myh = (struct elf_link_hash_entry *) bh;
myh->type = ELF_ST_INFO (STB_LOCAL, STT_ARM_TFUNC);
myh->forced_local = 1;
free (tmp_name);
#define CHANGE_TO_ARM "__%s_change_to_arm"
#define BACK_FROM_ARM "__%s_back_from_arm"
tmp_name = bfd_malloc ((bfd_size_type) strlen (name)
+ strlen (CHANGE_TO_ARM) + 1);
BFD_ASSERT (tmp_name);
sprintf (tmp_name, CHANGE_TO_ARM, name);
bh = NULL;
val = hash_table->thumb_glue_size + 4,
_bfd_generic_link_add_one_symbol (link_info, hash_table->bfd_of_glue_owner,
tmp_name, BSF_LOCAL, s, val,
NULL, TRUE, FALSE, &bh);
free (tmp_name);
s->size += THUMB2ARM_GLUE_SIZE;
hash_table->thumb_glue_size += THUMB2ARM_GLUE_SIZE;
return;
}
static void
elf32_arm_section_map_add (asection *sec, char type, bfd_vma vma)
{
struct _arm_elf_section_data *sec_data = elf32_arm_section_data (sec);
unsigned int newidx;
if (sec_data->map == NULL)
{
sec_data->map = bfd_malloc (sizeof (elf32_arm_section_map));
sec_data->mapcount = 0;
sec_data->mapsize = 1;
}
newidx = sec_data->mapcount++;
if (sec_data->mapcount > sec_data->mapsize)
{
sec_data->mapsize *= 2;
sec_data->map = bfd_realloc (sec_data->map, sec_data->mapsize
* sizeof (elf32_arm_section_map));
}
sec_data->map[newidx].vma = vma;
sec_data->map[newidx].type = type;
}
static bfd_vma
record_vfp11_erratum_veneer (struct bfd_link_info *link_info,
elf32_vfp11_erratum_list *branch,
bfd *branch_bfd,
asection *branch_sec,
unsigned int offset)
{
asection *s;
struct elf32_arm_link_hash_table *hash_table;
char *tmp_name;
struct elf_link_hash_entry *myh;
struct bfd_link_hash_entry *bh;
bfd_vma val;
struct _arm_elf_section_data *sec_data;
int errcount;
elf32_vfp11_erratum_list *newerr;
hash_table = elf32_arm_hash_table (link_info);
BFD_ASSERT (hash_table != NULL);
BFD_ASSERT (hash_table->bfd_of_glue_owner != NULL);
s = bfd_get_section_by_name
(hash_table->bfd_of_glue_owner, VFP11_ERRATUM_VENEER_SECTION_NAME);
sec_data = elf32_arm_section_data (s);
BFD_ASSERT (s != NULL);
tmp_name = bfd_malloc ((bfd_size_type) strlen
(VFP11_ERRATUM_VENEER_ENTRY_NAME) + 10);
BFD_ASSERT (tmp_name);
sprintf (tmp_name, VFP11_ERRATUM_VENEER_ENTRY_NAME,
hash_table->num_vfp11_fixes);
myh = elf_link_hash_lookup
(&(hash_table)->root, tmp_name, FALSE, FALSE, FALSE);
BFD_ASSERT (myh == NULL);
bh = NULL;
val = hash_table->vfp11_erratum_glue_size;
_bfd_generic_link_add_one_symbol (link_info, hash_table->bfd_of_glue_owner,
tmp_name, BSF_FUNCTION | BSF_LOCAL, s, val,
NULL, TRUE, FALSE, &bh);
myh = (struct elf_link_hash_entry *) bh;
myh->type = ELF_ST_INFO (STB_LOCAL, STT_FUNC);
myh->forced_local = 1;
errcount = ++(sec_data->erratumcount);
newerr = bfd_zmalloc (sizeof (elf32_vfp11_erratum_list));
newerr->type = VFP11_ERRATUM_ARM_VENEER;
newerr->vma = -1;
newerr->u.v.branch = branch;
newerr->u.v.id = hash_table->num_vfp11_fixes;
branch->u.b.veneer = newerr;
newerr->next = sec_data->erratumlist;
sec_data->erratumlist = newerr;
sprintf (tmp_name, VFP11_ERRATUM_VENEER_ENTRY_NAME "_r",
hash_table->num_vfp11_fixes);
myh = elf_link_hash_lookup
(&(hash_table)->root, tmp_name, FALSE, FALSE, FALSE);
if (myh != NULL)
abort ();
bh = NULL;
val = offset + 4;
_bfd_generic_link_add_one_symbol (link_info, branch_bfd, tmp_name, BSF_LOCAL,
branch_sec, val, NULL, TRUE, FALSE, &bh);
myh = (struct elf_link_hash_entry *) bh;
myh->type = ELF_ST_INFO (STB_LOCAL, STT_FUNC);
myh->forced_local = 1;
free (tmp_name);
if (hash_table->vfp11_erratum_glue_size == 0)
{
bh = NULL;
_bfd_generic_link_add_one_symbol (link_info,
hash_table->bfd_of_glue_owner, "$a",
BSF_LOCAL, s, 0, NULL,
TRUE, FALSE, &bh);
myh = (struct elf_link_hash_entry *) bh;
myh->type = ELF_ST_INFO (STB_LOCAL, STT_NOTYPE);
myh->forced_local = 1;
elf32_arm_section_map_add (s, 'a', 0);
}
s->size += VFP11_ERRATUM_VENEER_SIZE;
hash_table->vfp11_erratum_glue_size += VFP11_ERRATUM_VENEER_SIZE;
hash_table->num_vfp11_fixes++;
return val;
}
bfd_boolean
bfd_elf32_arm_add_glue_sections_to_bfd (bfd *abfd,
struct bfd_link_info *info)
{
flagword flags;
asection *sec;
if (info->relocatable)
return TRUE;
sec = bfd_get_section_by_name (abfd, ARM2THUMB_GLUE_SECTION_NAME);
if (sec == NULL)
{
flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
| SEC_CODE | SEC_READONLY);
sec = bfd_make_section_with_flags (abfd,
ARM2THUMB_GLUE_SECTION_NAME,
flags);
if (sec == NULL
|| !bfd_set_section_alignment (abfd, sec, 2))
return FALSE;
sec->gc_mark = 1;
}
sec = bfd_get_section_by_name (abfd, THUMB2ARM_GLUE_SECTION_NAME);
if (sec == NULL)
{
flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
| SEC_CODE | SEC_READONLY);
sec = bfd_make_section_with_flags (abfd,
THUMB2ARM_GLUE_SECTION_NAME,
flags);
if (sec == NULL
|| !bfd_set_section_alignment (abfd, sec, 2))
return FALSE;
sec->gc_mark = 1;
}
sec = bfd_get_section_by_name (abfd, VFP11_ERRATUM_VENEER_SECTION_NAME);
if (sec == NULL)
{
flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
| SEC_CODE | SEC_READONLY);
sec = bfd_make_section_with_flags (abfd,
VFP11_ERRATUM_VENEER_SECTION_NAME,
flags);
if (sec == NULL
|| !bfd_set_section_alignment (abfd, sec, 2))
return FALSE;
sec->gc_mark = 1;
}
return TRUE;
}
bfd_boolean
bfd_elf32_arm_get_bfd_for_interworking (bfd *abfd, struct bfd_link_info *info)
{
struct elf32_arm_link_hash_table *globals;
if (info->relocatable)
return TRUE;
BFD_ASSERT (!(abfd->flags & DYNAMIC));
globals = elf32_arm_hash_table (info);
BFD_ASSERT (globals != NULL);
if (globals->bfd_of_glue_owner != NULL)
return TRUE;
globals->bfd_of_glue_owner = abfd;
return TRUE;
}
static void check_use_blx(struct elf32_arm_link_hash_table *globals)
{
if (elf32_arm_get_eabi_attr_int (globals->obfd, Tag_CPU_arch) > 2)
globals->use_blx = 1;
}
bfd_boolean
bfd_elf32_arm_process_before_allocation (bfd *abfd,
struct bfd_link_info *link_info)
{
Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Rela *internal_relocs = NULL;
Elf_Internal_Rela *irel, *irelend;
bfd_byte *contents = NULL;
asection *sec;
struct elf32_arm_link_hash_table *globals;
if (link_info->relocatable)
return TRUE;
globals = elf32_arm_hash_table (link_info);
check_use_blx (globals);
BFD_ASSERT (globals != NULL);
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
if (globals->byteswap_code && !bfd_big_endian (abfd))
{
_bfd_error_handler (_("%B: BE8 images only valid in big-endian mode."),
abfd);
return FALSE;
}
sec = abfd->sections;
if (sec == NULL)
return TRUE;
for (; sec != NULL; sec = sec->next)
{
if (sec->reloc_count == 0)
continue;
if ((sec->flags & SEC_EXCLUDE) != 0)
continue;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
internal_relocs
= _bfd_elf_link_read_relocs (abfd, sec, (void *) NULL,
(Elf_Internal_Rela *) NULL, FALSE);
if (internal_relocs == NULL)
goto error_return;
irelend = internal_relocs + sec->reloc_count;
for (irel = internal_relocs; irel < irelend; irel++)
{
long r_type;
unsigned long r_index;
struct elf_link_hash_entry *h;
r_type = ELF32_R_TYPE (irel->r_info);
r_index = ELF32_R_SYM (irel->r_info);
if ( r_type != R_ARM_PC24
&& r_type != R_ARM_PLT32
&& r_type != R_ARM_CALL
&& r_type != R_ARM_JUMP24
&& r_type != R_ARM_THM_CALL)
continue;
if (contents == NULL)
{
if (elf_section_data (sec)->this_hdr.contents != NULL)
contents = elf_section_data (sec)->this_hdr.contents;
else
{
if (! bfd_malloc_and_get_section (abfd, sec, &contents))
goto error_return;
}
}
h = NULL;
if (r_index < symtab_hdr->sh_info)
continue;
r_index -= symtab_hdr->sh_info;
h = (struct elf_link_hash_entry *)
elf_sym_hashes (abfd)[r_index];
if (h == NULL)
continue;
if (globals->splt != NULL && h->plt.offset != (bfd_vma) -1)
continue;
switch (r_type)
{
case R_ARM_PC24:
case R_ARM_PLT32:
case R_ARM_CALL:
case R_ARM_JUMP24:
if (ELF_ST_TYPE(h->type) == STT_ARM_TFUNC
&& !(r_type == R_ARM_CALL && globals->use_blx))
record_arm_to_thumb_glue (link_info, h);
break;
case R_ARM_THM_CALL:
if (ELF_ST_TYPE (h->type) != STT_ARM_TFUNC && !globals->use_blx)
record_thumb_to_arm_glue (link_info, h);
break;
default:
abort ();
}
}
if (contents != NULL
&& elf_section_data (sec)->this_hdr.contents != contents)
free (contents);
contents = NULL;
if (internal_relocs != NULL
&& elf_section_data (sec)->relocs != internal_relocs)
free (internal_relocs);
internal_relocs = NULL;
}
return TRUE;
error_return:
if (contents != NULL
&& elf_section_data (sec)->this_hdr.contents != contents)
free (contents);
if (internal_relocs != NULL
&& elf_section_data (sec)->relocs != internal_relocs)
free (internal_relocs);
return FALSE;
}
#endif
void
bfd_elf32_arm_init_maps (bfd *abfd)
{
Elf_Internal_Sym *isymbuf;
Elf_Internal_Shdr *hdr;
unsigned int i, localsyms;
if ((abfd->flags & DYNAMIC) != 0)
return;
hdr = &elf_tdata (abfd)->symtab_hdr;
localsyms = hdr->sh_info;
isymbuf = bfd_elf_get_elf_syms (abfd, hdr, localsyms, 0, NULL, NULL,
NULL);
if (isymbuf == NULL)
return;
for (i = 0; i < localsyms; i++)
{
Elf_Internal_Sym *isym = &isymbuf[i];
asection *sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
const char *name;
if (sec != NULL
&& ELF_ST_BIND (isym->st_info) == STB_LOCAL)
{
name = bfd_elf_string_from_elf_section (abfd,
hdr->sh_link, isym->st_name);
if (bfd_is_arm_special_symbol_name (name,
BFD_ARM_SPECIAL_SYM_TYPE_MAP))
elf32_arm_section_map_add (sec, name[1], isym->st_value);
}
}
}
void
bfd_elf32_arm_set_vfp11_fix (bfd *obfd, struct bfd_link_info *link_info)
{
struct elf32_arm_link_hash_table *globals = elf32_arm_hash_table (link_info);
aeabi_attribute *out_attr = elf32_arm_tdata (obfd)->known_eabi_attributes;
if (out_attr[Tag_CPU_arch].i >= TAG_CPU_ARCH_V7)
{
switch (globals->vfp11_fix)
{
case BFD_ARM_VFP11_FIX_DEFAULT:
case BFD_ARM_VFP11_FIX_NONE:
globals->vfp11_fix = BFD_ARM_VFP11_FIX_NONE;
break;
default:
(*_bfd_error_handler) (_("%B: warning: selected VFP11 erratum "
"workaround is not necessary for target architecture"), obfd);
}
}
else if (globals->vfp11_fix == BFD_ARM_VFP11_FIX_DEFAULT)
globals->vfp11_fix = BFD_ARM_VFP11_FIX_NONE;
}
enum bfd_arm_vfp11_pipe {
VFP11_FMAC,
VFP11_LS,
VFP11_DS,
VFP11_BAD
};
static unsigned int
bfd_arm_vfp11_regno (unsigned int insn, bfd_boolean is_double, unsigned int rx,
unsigned int x)
{
if (is_double)
return (((insn >> rx) & 0xf) | (((insn >> x) & 1) << 4)) + 32;
else
return (((insn >> rx) & 0xf) << 1) | ((insn >> x) & 1);
}
static void
bfd_arm_vfp11_write_mask (unsigned int *wmask, unsigned int reg)
{
if (reg < 32)
*wmask |= 1 << reg;
else if (reg < 48)
*wmask |= 3 << ((reg - 32) * 2);
}
static bfd_boolean
bfd_arm_vfp11_antidependency (unsigned int wmask, int *regs, int numregs)
{
int i;
for (i = 0; i < numregs; i++)
{
unsigned int reg = regs[i];
if (reg < 32 && (wmask & (1 << reg)) != 0)
return TRUE;
reg -= 32;
if (reg >= 16)
continue;
if ((wmask & (3 << (reg * 2))) != 0)
return TRUE;
}
return FALSE;
}
static enum bfd_arm_vfp11_pipe
bfd_arm_vfp11_insn_decode (unsigned int insn, unsigned int *destmask, int *regs,
int *numregs)
{
enum bfd_arm_vfp11_pipe pipe = VFP11_BAD;
bfd_boolean is_double = ((insn & 0xf00) == 0xb00) ? 1 : 0;
if ((insn & 0x0f000e10) == 0x0e000a00)
{
unsigned int pqrs;
unsigned int fd = bfd_arm_vfp11_regno (insn, is_double, 12, 22);
unsigned int fm = bfd_arm_vfp11_regno (insn, is_double, 0, 5);
pqrs = ((insn & 0x00800000) >> 20)
| ((insn & 0x00300000) >> 19)
| ((insn & 0x00000040) >> 6);
switch (pqrs)
{
case 0:
case 1:
case 2:
case 3:
pipe = VFP11_FMAC;
bfd_arm_vfp11_write_mask (destmask, fd);
regs[0] = fd;
regs[1] = bfd_arm_vfp11_regno (insn, is_double, 16, 7);
regs[2] = fm;
*numregs = 3;
break;
case 4:
case 5:
case 6:
case 7:
pipe = VFP11_FMAC;
goto vfp_binop;
case 8:
pipe = VFP11_DS;
vfp_binop:
bfd_arm_vfp11_write_mask (destmask, fd);
regs[0] = bfd_arm_vfp11_regno (insn, is_double, 16, 7);
regs[1] = fm;
*numregs = 2;
break;
case 15:
{
unsigned int extn = ((insn >> 15) & 0x1e)
| ((insn >> 7) & 1);
switch (extn)
{
case 0:
case 1:
case 2:
case 8:
case 9:
case 10:
case 11:
case 16:
case 17:
case 24:
case 25:
case 26:
case 27:
*numregs = 0;
pipe = VFP11_FMAC;
break;
case 3:
bfd_arm_vfp11_write_mask (destmask, fd);
pipe = VFP11_DS;
break;
case 15:
{
int rnum = 0;
bfd_arm_vfp11_write_mask (destmask, fd);
if ((insn & 0x100) != 0)
regs[rnum++] = fm;
*numregs = rnum;
pipe = VFP11_FMAC;
}
break;
default:
return VFP11_BAD;
}
}
break;
default:
return VFP11_BAD;
}
}
else if ((insn & 0x0fe00ed0) == 0x0c400a10)
{
unsigned int fm = bfd_arm_vfp11_regno (insn, is_double, 0, 5);
if ((insn & 0x100000) == 0)
{
if (is_double)
bfd_arm_vfp11_write_mask (destmask, fm);
else
{
bfd_arm_vfp11_write_mask (destmask, fm);
bfd_arm_vfp11_write_mask (destmask, fm + 1);
}
}
pipe = VFP11_LS;
}
else if ((insn & 0x0e100e00) == 0x0c100a00)
{
int fd = bfd_arm_vfp11_regno (insn, is_double, 12, 22);
unsigned int puw = ((insn >> 21) & 0x1) | (((insn >> 23) & 3) << 1);
switch (puw)
{
case 0:
abort ();
case 2:
case 3:
case 5:
{
unsigned int i, offset = insn & 0xff;
if (is_double)
offset >>= 1;
for (i = fd; i < fd + offset; i++)
bfd_arm_vfp11_write_mask (destmask, i);
}
break;
case 4:
case 6:
bfd_arm_vfp11_write_mask (destmask, fd);
break;
default:
return VFP11_BAD;
}
pipe = VFP11_LS;
}
else if ((insn & 0x0f100e10) == 0x0e000a10)
{
unsigned int opcode = (insn >> 21) & 7;
unsigned int fn = bfd_arm_vfp11_regno (insn, is_double, 16, 7);
switch (opcode)
{
case 0:
case 1:
bfd_arm_vfp11_write_mask (destmask, fn);
break;
case 7:
break;
}
pipe = VFP11_LS;
}
return pipe;
}
static int elf32_arm_compare_mapping (const void * a, const void * b);
bfd_boolean
bfd_elf32_arm_vfp11_erratum_scan (bfd *abfd, struct bfd_link_info *link_info)
{
asection *sec;
bfd_byte *contents = NULL;
int state = 0;
int regs[3], numregs = 0;
struct elf32_arm_link_hash_table *globals = elf32_arm_hash_table (link_info);
int use_vector = (globals->vfp11_fix == BFD_ARM_VFP11_FIX_VECTOR);
if (link_info->relocatable)
return TRUE;
BFD_ASSERT (globals->vfp11_fix != BFD_ARM_VFP11_FIX_DEFAULT);
if (globals->vfp11_fix == BFD_ARM_VFP11_FIX_NONE)
return TRUE;
for (sec = abfd->sections; sec != NULL; sec = sec->next)
{
unsigned int i, span, first_fmac = 0, veneer_of_insn = 0;
struct _arm_elf_section_data *sec_data;
if (elf_section_type (sec) != SHT_PROGBITS
|| (elf_section_flags (sec) & SHF_EXECINSTR) == 0
|| (sec->flags & SEC_EXCLUDE) != 0
|| strcmp (sec->name, VFP11_ERRATUM_VENEER_SECTION_NAME) == 0)
continue;
sec_data = elf32_arm_section_data (sec);
if (sec_data->mapcount == 0)
continue;
if (elf_section_data (sec)->this_hdr.contents != NULL)
contents = elf_section_data (sec)->this_hdr.contents;
else if (! bfd_malloc_and_get_section (abfd, sec, &contents))
goto error_return;
qsort (sec_data->map, sec_data->mapcount, sizeof (elf32_arm_section_map),
elf32_arm_compare_mapping);
for (span = 0; span < sec_data->mapcount; span++)
{
unsigned int span_start = sec_data->map[span].vma;
unsigned int span_end = (span == sec_data->mapcount - 1)
? sec->size : sec_data->map[span + 1].vma;
char span_type = sec_data->map[span].type;
if (span_type != 'a')
continue;
for (i = span_start; i < span_end;)
{
unsigned int next_i = i + 4;
unsigned int insn = bfd_big_endian (abfd)
? (contents[i] << 24)
| (contents[i + 1] << 16)
| (contents[i + 2] << 8)
| contents[i + 3]
: (contents[i + 3] << 24)
| (contents[i + 2] << 16)
| (contents[i + 1] << 8)
| contents[i];
unsigned int writemask = 0;
enum bfd_arm_vfp11_pipe pipe;
switch (state)
{
case 0:
pipe = bfd_arm_vfp11_insn_decode (insn, &writemask, regs,
&numregs);
if (pipe == VFP11_FMAC || pipe == VFP11_DS)
{
state = use_vector ? 1 : 2;
first_fmac = i;
veneer_of_insn = insn;
}
break;
case 1:
{
int other_regs[3], other_numregs;
pipe = bfd_arm_vfp11_insn_decode (insn, &writemask,
other_regs,
&other_numregs);
if (pipe != VFP11_BAD
&& bfd_arm_vfp11_antidependency (writemask, regs,
numregs))
state = 3;
else
state = 2;
}
break;
case 2:
{
int other_regs[3], other_numregs;
pipe = bfd_arm_vfp11_insn_decode (insn, &writemask,
other_regs,
&other_numregs);
if (pipe != VFP11_BAD
&& bfd_arm_vfp11_antidependency (writemask, regs,
numregs))
state = 3;
else
{
state = 0;
next_i = first_fmac + 4;
}
}
break;
case 3:
abort ();
}
if (state == 3)
{
elf32_vfp11_erratum_list *newerr
= bfd_zmalloc (sizeof (elf32_vfp11_erratum_list));
int errcount;
errcount = ++(elf32_arm_section_data (sec)->erratumcount);
newerr->u.b.vfp_insn = veneer_of_insn;
switch (span_type)
{
case 'a':
newerr->type = VFP11_ERRATUM_BRANCH_TO_ARM_VENEER;
break;
default:
abort ();
}
record_vfp11_erratum_veneer (link_info, newerr, abfd, sec,
first_fmac);
newerr->vma = -1;
newerr->next = sec_data->erratumlist;
sec_data->erratumlist = newerr;
state = 0;
}
i = next_i;
}
}
if (contents != NULL
&& elf_section_data (sec)->this_hdr.contents != contents)
free (contents);
contents = NULL;
}
return TRUE;
error_return:
if (contents != NULL
&& elf_section_data (sec)->this_hdr.contents != contents)
free (contents);
return FALSE;
}
void
bfd_elf32_arm_vfp11_fix_veneer_locations (bfd *abfd,
struct bfd_link_info *link_info)
{
asection *sec;
struct elf32_arm_link_hash_table *globals;
char *tmp_name;
if (link_info->relocatable)
return;
globals = elf32_arm_hash_table (link_info);
tmp_name = bfd_malloc ((bfd_size_type) strlen
(VFP11_ERRATUM_VENEER_ENTRY_NAME) + 10);
for (sec = abfd->sections; sec != NULL; sec = sec->next)
{
struct _arm_elf_section_data *sec_data = elf32_arm_section_data (sec);
elf32_vfp11_erratum_list *errnode = sec_data->erratumlist;
for (; errnode != NULL; errnode = errnode->next)
{
struct elf_link_hash_entry *myh;
bfd_vma vma;
switch (errnode->type)
{
case VFP11_ERRATUM_BRANCH_TO_ARM_VENEER:
case VFP11_ERRATUM_BRANCH_TO_THUMB_VENEER:
sprintf (tmp_name, VFP11_ERRATUM_VENEER_ENTRY_NAME,
errnode->u.b.veneer->u.v.id);
myh = elf_link_hash_lookup
(&(globals)->root, tmp_name, FALSE, FALSE, TRUE);
if (myh == NULL)
(*_bfd_error_handler) (_("%B: unable to find VFP11 veneer "
"`%s'"), abfd, tmp_name);
vma = myh->root.u.def.section->output_section->vma
+ myh->root.u.def.section->output_offset
+ myh->root.u.def.value;
errnode->u.b.veneer->vma = vma;
break;
case VFP11_ERRATUM_ARM_VENEER:
case VFP11_ERRATUM_THUMB_VENEER:
sprintf (tmp_name, VFP11_ERRATUM_VENEER_ENTRY_NAME "_r",
errnode->u.v.id);
myh = elf_link_hash_lookup
(&(globals)->root, tmp_name, FALSE, FALSE, TRUE);
if (myh == NULL)
(*_bfd_error_handler) (_("%B: unable to find VFP11 veneer "
"`%s'"), abfd, tmp_name);
vma = myh->root.u.def.section->output_section->vma
+ myh->root.u.def.section->output_offset
+ myh->root.u.def.value;
errnode->u.v.branch->vma = vma;
break;
default:
abort ();
}
}
}
free (tmp_name);
}
void
bfd_elf32_arm_set_target_relocs (struct bfd_link_info *link_info,
int target1_is_rel,
char * target2_type,
int fix_v4bx,
int use_blx,
bfd_arm_vfp11_fix vfp11_fix)
{
struct elf32_arm_link_hash_table *globals;
globals = elf32_arm_hash_table (link_info);
globals->target1_is_rel = target1_is_rel;
if (strcmp (target2_type, "rel") == 0)
globals->target2_reloc = R_ARM_REL32;
else if (strcmp (target2_type, "abs") == 0)
globals->target2_reloc = R_ARM_ABS32;
else if (strcmp (target2_type, "got-rel") == 0)
globals->target2_reloc = R_ARM_GOT_PREL;
else
{
_bfd_error_handler (_("Invalid TARGET2 relocation type '%s'."),
target2_type);
}
globals->fix_v4bx = fix_v4bx;
globals->use_blx |= use_blx;
globals->vfp11_fix = vfp11_fix;
}
#define LOW_HI_ORDER 0xF800F000
#define HI_LOW_ORDER 0xF000F800
static insn32
insert_thumb_branch (insn32 br_insn, int rel_off)
{
unsigned int low_bits;
unsigned int high_bits;
BFD_ASSERT ((rel_off & 1) != 1);
rel_off >>= 1;
low_bits = rel_off & 0x000007FF;
high_bits = (rel_off >> 11) & 0x000007FF;
if ((br_insn & LOW_HI_ORDER) == LOW_HI_ORDER)
br_insn = LOW_HI_ORDER | (low_bits << 16) | high_bits;
else if ((br_insn & HI_LOW_ORDER) == HI_LOW_ORDER)
br_insn = HI_LOW_ORDER | (high_bits << 16) | low_bits;
else
abort ();
return br_insn;
}
static void
put_arm_insn (struct elf32_arm_link_hash_table *htab,
bfd * output_bfd, bfd_vma val, void * ptr)
{
if (htab->byteswap_code != bfd_little_endian (output_bfd))
bfd_putl32 (val, ptr);
else
bfd_putb32 (val, ptr);
}
static void
put_thumb_insn (struct elf32_arm_link_hash_table *htab,
bfd * output_bfd, bfd_vma val, void * ptr)
{
if (htab->byteswap_code != bfd_little_endian (output_bfd))
bfd_putl16 (val, ptr);
else
bfd_putb16 (val, ptr);
}
static int
elf32_thumb_to_arm_stub (struct bfd_link_info * info,
const char * name,
bfd * input_bfd,
bfd * output_bfd,
asection * input_section,
bfd_byte * hit_data,
asection * sym_sec,
bfd_vma offset,
bfd_signed_vma addend,
bfd_vma val,
char **error_message)
{
asection * s = 0;
bfd_vma my_offset;
unsigned long int tmp;
long int ret_offset;
struct elf_link_hash_entry * myh;
struct elf32_arm_link_hash_table * globals;
myh = find_thumb_glue (info, name, error_message);
if (myh == NULL)
return FALSE;
globals = elf32_arm_hash_table (info);
BFD_ASSERT (globals != NULL);
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
my_offset = myh->root.u.def.value;
s = bfd_get_section_by_name (globals->bfd_of_glue_owner,
THUMB2ARM_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
BFD_ASSERT (s->contents != NULL);
BFD_ASSERT (s->output_section != NULL);
if ((my_offset & 0x01) == 0x01)
{
if (sym_sec != NULL
&& sym_sec->owner != NULL
&& !INTERWORK_FLAG (sym_sec->owner))
{
(*_bfd_error_handler)
(_("%B(%s): warning: interworking not enabled.\n"
" first occurrence: %B: thumb call to arm"),
sym_sec->owner, input_bfd, name);
return FALSE;
}
--my_offset;
myh->root.u.def.value = my_offset;
put_thumb_insn (globals, output_bfd, (bfd_vma) t2a1_bx_pc_insn,
s->contents + my_offset);
put_thumb_insn (globals, output_bfd, (bfd_vma) t2a2_noop_insn,
s->contents + my_offset + 2);
ret_offset =
((bfd_signed_vma) val)
- ((bfd_signed_vma)
(s->output_offset
+ my_offset
+ s->output_section->vma)
+ 4
+ 8);
put_arm_insn (globals, output_bfd,
(bfd_vma) t2a3_b_insn | ((ret_offset >> 2) & 0x00FFFFFF),
s->contents + my_offset + 4);
}
BFD_ASSERT (my_offset <= globals->thumb_glue_size);
ret_offset =
(s->output_section->vma + s->output_offset + my_offset)
- (input_section->output_section->vma + input_section->output_offset
+ offset)
- addend
- 8;
tmp = bfd_get_32 (input_bfd, hit_data
- input_section->vma);
bfd_put_32 (output_bfd,
(bfd_vma) insert_thumb_branch (tmp, ret_offset),
hit_data - input_section->vma);
return TRUE;
}
static struct elf_link_hash_entry *
elf32_arm_create_thumb_stub (struct bfd_link_info * info,
const char * name,
bfd * input_bfd,
bfd * output_bfd,
asection * sym_sec,
bfd_vma val,
asection *s,
char **error_message)
{
bfd_vma my_offset;
long int ret_offset;
struct elf_link_hash_entry * myh;
struct elf32_arm_link_hash_table * globals;
myh = find_arm_glue (info, name, error_message);
if (myh == NULL)
return NULL;
globals = elf32_arm_hash_table (info);
BFD_ASSERT (globals != NULL);
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
my_offset = myh->root.u.def.value;
if ((my_offset & 0x01) == 0x01)
{
if (sym_sec != NULL
&& sym_sec->owner != NULL
&& !INTERWORK_FLAG (sym_sec->owner))
{
(*_bfd_error_handler)
(_("%B(%s): warning: interworking not enabled.\n"
" first occurrence: %B: arm call to thumb"),
sym_sec->owner, input_bfd, name);
}
--my_offset;
myh->root.u.def.value = my_offset;
if ((info->shared || globals->root.is_relocatable_executable))
{
put_arm_insn (globals, output_bfd, (bfd_vma) a2t1p_ldr_insn,
s->contents + my_offset);
put_arm_insn (globals, output_bfd, (bfd_vma) a2t2p_add_pc_insn,
s->contents + my_offset + 4);
put_arm_insn (globals, output_bfd, (bfd_vma) a2t3p_bx_r12_insn,
s->contents + my_offset + 8);
ret_offset = (val - (s->output_offset
+ s->output_section->vma
+ my_offset + 12))
| 1;
bfd_put_32 (output_bfd, ret_offset,
s->contents + my_offset + 12);
}
else
{
put_arm_insn (globals, output_bfd, (bfd_vma) a2t1_ldr_insn,
s->contents + my_offset);
put_arm_insn (globals, output_bfd, (bfd_vma) a2t2_bx_r12_insn,
s->contents + my_offset + 4);
bfd_put_32 (output_bfd, val | a2t3_func_addr_insn,
s->contents + my_offset + 8);
}
}
BFD_ASSERT (my_offset <= globals->arm_glue_size);
return myh;
}
static int
elf32_arm_to_thumb_stub (struct bfd_link_info * info,
const char * name,
bfd * input_bfd,
bfd * output_bfd,
asection * input_section,
bfd_byte * hit_data,
asection * sym_sec,
bfd_vma offset,
bfd_signed_vma addend,
bfd_vma val,
char **error_message)
{
unsigned long int tmp;
bfd_vma my_offset;
asection * s;
long int ret_offset;
struct elf_link_hash_entry * myh;
struct elf32_arm_link_hash_table * globals;
globals = elf32_arm_hash_table (info);
BFD_ASSERT (globals != NULL);
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
s = bfd_get_section_by_name (globals->bfd_of_glue_owner,
ARM2THUMB_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
BFD_ASSERT (s->contents != NULL);
BFD_ASSERT (s->output_section != NULL);
myh = elf32_arm_create_thumb_stub (info, name, input_bfd, output_bfd,
sym_sec, val, s, error_message);
if (!myh)
return FALSE;
my_offset = myh->root.u.def.value;
tmp = bfd_get_32 (input_bfd, hit_data);
tmp = tmp & 0xFF000000;
ret_offset = (s->output_offset
+ my_offset
+ s->output_section->vma
- (input_section->output_offset
+ input_section->output_section->vma
+ offset + addend)
- 8);
tmp = tmp | ((ret_offset >> 2) & 0x00FFFFFF);
bfd_put_32 (output_bfd, (bfd_vma) tmp, hit_data - input_section->vma);
return TRUE;
}
static bfd_boolean
elf32_arm_to_thumb_export_stub (struct elf_link_hash_entry *h, void * inf)
{
struct bfd_link_info * info = (struct bfd_link_info *) inf;
asection * s;
struct elf_link_hash_entry * myh;
struct elf32_arm_link_hash_entry *eh;
struct elf32_arm_link_hash_table * globals;
asection *sec;
bfd_vma val;
char *error_message;
eh = elf32_arm_hash_entry(h);
if (eh->export_glue == NULL)
return TRUE;
globals = elf32_arm_hash_table (info);
BFD_ASSERT (globals != NULL);
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
s = bfd_get_section_by_name (globals->bfd_of_glue_owner,
ARM2THUMB_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
BFD_ASSERT (s->contents != NULL);
BFD_ASSERT (s->output_section != NULL);
sec = eh->export_glue->root.u.def.section;
BFD_ASSERT (sec->output_section != NULL);
val = eh->export_glue->root.u.def.value + sec->output_offset
+ sec->output_section->vma;
myh = elf32_arm_create_thumb_stub (info, h->root.root.string,
h->root.u.def.section->owner,
globals->obfd, sec, val, s,
&error_message);
BFD_ASSERT (myh);
return TRUE;
}
static void
elf32_arm_begin_write_processing (bfd *abfd ATTRIBUTE_UNUSED,
struct bfd_link_info *link_info)
{
struct elf32_arm_link_hash_table * globals;
if (!link_info)
return;
globals = elf32_arm_hash_table (link_info);
if (globals->use_blx)
return;
elf_link_hash_traverse (&globals->root, elf32_arm_to_thumb_export_stub,
link_info);
}
static int
arm_real_reloc_type (struct elf32_arm_link_hash_table * globals,
int r_type)
{
switch (r_type)
{
case R_ARM_TARGET1:
if (globals->target1_is_rel)
return R_ARM_REL32;
else
return R_ARM_ABS32;
case R_ARM_TARGET2:
return globals->target2_reloc;
default:
return r_type;
}
}
static bfd_vma
dtpoff_base (struct bfd_link_info *info)
{
if (elf_hash_table (info)->tls_sec == NULL)
return 0;
return elf_hash_table (info)->tls_sec->vma;
}
static bfd_vma
tpoff (struct bfd_link_info *info, bfd_vma address)
{
struct elf_link_hash_table *htab = elf_hash_table (info);
bfd_vma base;
if (htab->tls_sec == NULL)
return 0;
base = align_power ((bfd_vma) TCB_SIZE, htab->tls_sec->alignment_power);
return address - htab->tls_sec->vma + base;
}
static bfd_reloc_status_type
elf32_arm_abs12_reloc (bfd *abfd, void *data, bfd_vma value)
{
if (value > 0xfff)
return bfd_reloc_overflow;
value |= bfd_get_32 (abfd, data) & 0xfffff000;
bfd_put_32 (abfd, value, data);
return bfd_reloc_ok;
}
static bfd_vma
calculate_group_reloc_mask (bfd_vma value, int n, bfd_vma *final_residual)
{
int current_n;
bfd_vma g_n;
bfd_vma encoded_g_n = 0;
bfd_vma residual = value;
for (current_n = 0; current_n <= n; current_n++)
{
int shift;
if (residual == 0)
shift = 0;
else
{
int msb;
for (msb = 30; msb >= 0; msb -= 2)
if (residual & (3 << msb))
break;
shift = msb - 6;
if (shift < 0)
shift = 0;
}
g_n = residual & (0xff << shift);
encoded_g_n = (g_n >> shift)
| ((g_n <= 0xff ? 0 : (32 - shift) / 2) << 8);
residual &= ~g_n;
}
*final_residual = residual;
return encoded_g_n;
}
static int
identify_add_or_sub(bfd_vma insn)
{
int opcode = insn & 0x1e00000;
if (opcode == 1 << 23)
return 1;
if (opcode == 1 << 22)
return -1;
return 0;
}
static int using_thumb2 (struct elf32_arm_link_hash_table *globals)
{
int arch = elf32_arm_get_eabi_attr_int (globals->obfd, Tag_CPU_arch);
return arch == TAG_CPU_ARCH_V6T2 || arch >= TAG_CPU_ARCH_V7;
}
static bfd_reloc_status_type
elf32_arm_final_link_relocate (reloc_howto_type * howto,
bfd * input_bfd,
bfd * output_bfd,
asection * input_section,
bfd_byte * contents,
Elf_Internal_Rela * rel,
bfd_vma value,
struct bfd_link_info * info,
asection * sym_sec,
const char * sym_name,
int sym_flags,
struct elf_link_hash_entry * h,
bfd_boolean * unresolved_reloc_p,
char **error_message)
{
unsigned long r_type = howto->type;
unsigned long r_symndx;
bfd_byte * hit_data = contents + rel->r_offset;
bfd * dynobj = NULL;
Elf_Internal_Shdr * symtab_hdr;
struct elf_link_hash_entry ** sym_hashes;
bfd_vma * local_got_offsets;
asection * sgot = NULL;
asection * splt = NULL;
asection * sreloc = NULL;
bfd_vma addend;
bfd_signed_vma signed_addend;
struct elf32_arm_link_hash_table * globals;
globals = elf32_arm_hash_table (info);
r_type = arm_real_reloc_type (globals, r_type);
if (r_type != howto->type)
howto = elf32_arm_howto_from_type (r_type);
if (bfd_get_start_address (output_bfd) != 0)
elf_elfheader (output_bfd)->e_flags |= EF_ARM_HASENTRY;
dynobj = elf_hash_table (info)->dynobj;
if (dynobj)
{
sgot = bfd_get_section_by_name (dynobj, ".got");
splt = bfd_get_section_by_name (dynobj, ".plt");
}
symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
local_got_offsets = elf_local_got_offsets (input_bfd);
r_symndx = ELF32_R_SYM (rel->r_info);
if (globals->use_rel)
{
addend = bfd_get_32 (input_bfd, hit_data) & howto->src_mask;
if (addend & ((howto->src_mask + 1) >> 1))
{
signed_addend = -1;
signed_addend &= ~ howto->src_mask;
signed_addend |= addend;
}
else
signed_addend = addend;
}
else
addend = signed_addend = rel->r_addend;
switch (r_type)
{
case R_ARM_NONE:
*unresolved_reloc_p = FALSE;
return bfd_reloc_ok;
case R_ARM_ABS12:
if (!globals->vxworks_p)
return elf32_arm_abs12_reloc (input_bfd, hit_data, value + addend);
case R_ARM_PC24:
case R_ARM_ABS32:
case R_ARM_ABS32_NOI:
case R_ARM_REL32:
case R_ARM_REL32_NOI:
case R_ARM_CALL:
case R_ARM_JUMP24:
case R_ARM_XPC25:
case R_ARM_PREL31:
case R_ARM_PLT32:
if (r_symndx == 0)
{
_bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
return bfd_reloc_ok;
}
if ((r_type != R_ARM_ABS32 && r_type != R_ARM_REL32
&& r_type != R_ARM_ABS32_NOI && r_type != R_ARM_REL32_NOI)
&& h != NULL
&& splt != NULL
&& h->plt.offset != (bfd_vma) -1)
{
BFD_ASSERT (!SYMBOL_CALLS_LOCAL (info, h));
value = (splt->output_section->vma
+ splt->output_offset
+ h->plt.offset);
*unresolved_reloc_p = FALSE;
return _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset, value,
rel->r_addend);
}
if ((info->shared || globals->root.is_relocatable_executable)
&& (input_section->flags & SEC_ALLOC)
&& ((r_type != R_ARM_REL32 && r_type != R_ARM_REL32_NOI)
|| !SYMBOL_CALLS_LOCAL (info, h))
&& (h == NULL
|| ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|| h->root.type != bfd_link_hash_undefweak)
&& r_type != R_ARM_PC24
&& r_type != R_ARM_CALL
&& r_type != R_ARM_JUMP24
&& r_type != R_ARM_PREL31
&& r_type != R_ARM_PLT32)
{
Elf_Internal_Rela outrel;
bfd_byte *loc;
bfd_boolean skip, relocate;
*unresolved_reloc_p = FALSE;
if (sreloc == NULL)
{
const char * name;
name = (bfd_elf_string_from_elf_section
(input_bfd,
elf_elfheader (input_bfd)->e_shstrndx,
elf_section_data (input_section)->rel_hdr.sh_name));
if (name == NULL)
return bfd_reloc_notsupported;
BFD_ASSERT (reloc_section_p (globals, name, input_section));
sreloc = bfd_get_section_by_name (dynobj, name);
BFD_ASSERT (sreloc != NULL);
}
skip = FALSE;
relocate = FALSE;
outrel.r_addend = addend;
outrel.r_offset =
_bfd_elf_section_offset (output_bfd, info, input_section,
rel->r_offset);
if (outrel.r_offset == (bfd_vma) -1)
skip = TRUE;
else if (outrel.r_offset == (bfd_vma) -2)
skip = TRUE, relocate = TRUE;
outrel.r_offset += (input_section->output_section->vma
+ input_section->output_offset);
if (skip)
memset (&outrel, 0, sizeof outrel);
else if (h != NULL
&& h->dynindx != -1
&& (!info->shared
|| !info->symbolic
|| !h->def_regular))
outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
else
{
int symbol;
if (sym_flags == STT_ARM_TFUNC)
value |= 1;
if (globals->symbian_p)
{
asection *osec;
if (sym_sec)
osec = sym_sec->output_section;
else
osec = input_section->output_section;
symbol = elf_section_data (osec)->dynindx;
if (symbol == 0)
{
struct elf_link_hash_table *htab = elf_hash_table (info);
if ((osec->flags & SEC_READONLY) == 0
&& htab->data_index_section != NULL)
osec = htab->data_index_section;
else
osec = htab->text_index_section;
symbol = elf_section_data (osec)->dynindx;
}
BFD_ASSERT (symbol != 0);
}
else
symbol = 0;
outrel.r_info = ELF32_R_INFO (symbol, R_ARM_RELATIVE);
if (globals->use_rel)
relocate = TRUE;
else
outrel.r_addend += value;
}
loc = sreloc->contents;
loc += sreloc->reloc_count++ * RELOC_SIZE (globals);
SWAP_RELOC_OUT (globals) (output_bfd, &outrel, loc);
if (! relocate)
return bfd_reloc_ok;
return _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset, value,
(bfd_vma) 0);
}
else switch (r_type)
{
case R_ARM_ABS12:
return elf32_arm_abs12_reloc (input_bfd, hit_data, value + addend);
case R_ARM_XPC25:
case R_ARM_CALL:
case R_ARM_JUMP24:
case R_ARM_PC24:
case R_ARM_PLT32:
if (r_type == R_ARM_XPC25)
{
if (sym_flags != STT_ARM_TFUNC)
(*_bfd_error_handler)
(_("\%B: Warning: Arm BLX instruction targets Arm function '%s'."),
input_bfd,
h ? h->root.root.string : "(local)");
}
else if (r_type != R_ARM_CALL || !globals->use_blx)
{
if (sym_flags == STT_ARM_TFUNC)
{
if (elf32_arm_to_thumb_stub (info, sym_name, input_bfd,
output_bfd, input_section,
hit_data, sym_sec, rel->r_offset,
signed_addend, value,
error_message))
return bfd_reloc_ok;
else
return bfd_reloc_dangerous;
}
}
value -= (input_section->output_section->vma
+ input_section->output_offset);
value -= rel->r_offset;
if (globals->use_rel)
value += (signed_addend << howto->size);
else
value += signed_addend;
signed_addend = value;
signed_addend >>= howto->rightshift;
if (! h || h->root.type != bfd_link_hash_undefweak)
{
if ( signed_addend > ((bfd_signed_vma) (howto->dst_mask >> 1))
|| signed_addend < - ((bfd_signed_vma) ((howto->dst_mask + 1) >> 1)))
return bfd_reloc_overflow;
}
addend = (value & 2);
value = (signed_addend & howto->dst_mask)
| (bfd_get_32 (input_bfd, hit_data) & (~ howto->dst_mask));
if (sym_flags == STT_ARM_TFUNC)
{
if (addend)
value |= (1 << 24);
else
value &= ~(bfd_vma)(1 << 24);
}
if (r_type == R_ARM_CALL)
{
if (sym_flags == STT_ARM_TFUNC)
value |= (1 << 28);
else
{
value &= ~(bfd_vma)(1 << 28);
value |= (1 << 24);
}
}
break;
case R_ARM_ABS32:
value += addend;
if (sym_flags == STT_ARM_TFUNC)
value |= 1;
break;
case R_ARM_ABS32_NOI:
value += addend;
break;
case R_ARM_REL32:
value += addend;
if (sym_flags == STT_ARM_TFUNC)
value |= 1;
value -= (input_section->output_section->vma
+ input_section->output_offset + rel->r_offset);
break;
case R_ARM_REL32_NOI:
value += addend;
value -= (input_section->output_section->vma
+ input_section->output_offset + rel->r_offset);
break;
case R_ARM_PREL31:
value -= (input_section->output_section->vma
+ input_section->output_offset + rel->r_offset);
value += signed_addend;
if (! h || h->root.type != bfd_link_hash_undefweak)
{
if ((value ^ (value >> 1)) & (1 << 30))
return bfd_reloc_overflow;
}
value &= 0x7fffffff;
value |= (bfd_get_32 (input_bfd, hit_data) & 0x80000000);
if (sym_flags == STT_ARM_TFUNC)
value |= 1;
break;
}
bfd_put_32 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_ARM_ABS8:
value += addend;
if ((long) value > 0x7f || (long) value < -0x80)
return bfd_reloc_overflow;
bfd_put_8 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_ARM_ABS16:
value += addend;
if ((long) value > 0x7fff || (long) value < -0x8000)
return bfd_reloc_overflow;
bfd_put_16 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_ARM_THM_ABS5:
if (globals->use_rel)
{
addend = bfd_get_16 (input_bfd, hit_data) & howto->src_mask;
addend >>= howto->rightshift;
}
value += addend;
if ((long) value > 0x1f || (long) value < -0x10)
return bfd_reloc_overflow;
value |= bfd_get_16 (input_bfd, hit_data) & 0xf83f;
bfd_put_16 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_ARM_THM_ALU_PREL_11_0:
{
bfd_vma insn;
bfd_signed_vma relocation;
insn = (bfd_get_16 (input_bfd, hit_data) << 16)
| bfd_get_16 (input_bfd, hit_data + 2);
if (globals->use_rel)
{
signed_addend = (insn & 0xff) | ((insn & 0x7000) >> 4)
| ((insn & (1 << 26)) >> 15);
if (insn & 0xf00000)
signed_addend = -signed_addend;
}
relocation = value + signed_addend;
relocation -= (input_section->output_section->vma
+ input_section->output_offset
+ rel->r_offset);
value = abs (relocation);
if (value >= 0x1000)
return bfd_reloc_overflow;
insn = (insn & 0xfb0f8f00) | (value & 0xff)
| ((value & 0x700) << 4)
| ((value & 0x800) << 15);
if (relocation < 0)
insn |= 0xa00000;
bfd_put_16 (input_bfd, insn >> 16, hit_data);
bfd_put_16 (input_bfd, insn & 0xffff, hit_data + 2);
return bfd_reloc_ok;
}
case R_ARM_THM_PC12:
{
bfd_vma insn;
bfd_signed_vma relocation;
insn = (bfd_get_16 (input_bfd, hit_data) << 16)
| bfd_get_16 (input_bfd, hit_data + 2);
if (globals->use_rel)
{
signed_addend = insn & 0xfff;
if (!(insn & (1 << 23)))
signed_addend = -signed_addend;
}
relocation = value + signed_addend;
relocation -= (input_section->output_section->vma
+ input_section->output_offset
+ rel->r_offset);
value = abs (relocation);
if (value >= 0x1000)
return bfd_reloc_overflow;
insn = (insn & 0xff7ff000) | value;
if (relocation >= 0)
insn |= (1 << 23);
bfd_put_16 (input_bfd, insn >> 16, hit_data);
bfd_put_16 (input_bfd, insn & 0xffff, hit_data + 2);
return bfd_reloc_ok;
}
case R_ARM_THM_XPC22:
case R_ARM_THM_CALL:
{
bfd_vma relocation;
bfd_vma reloc_sign;
bfd_boolean overflow = FALSE;
bfd_vma upper_insn = bfd_get_16 (input_bfd, hit_data);
bfd_vma lower_insn = bfd_get_16 (input_bfd, hit_data + 2);
bfd_signed_vma reloc_signed_max;
bfd_signed_vma reloc_signed_min;
bfd_vma check;
bfd_signed_vma signed_check;
int bitsize;
int thumb2 = using_thumb2 (globals);
if (globals->use_rel)
{
bfd_vma s = (upper_insn & (1 << 10)) >> 10;
bfd_vma upper = upper_insn & 0x3ff;
bfd_vma lower = lower_insn & 0x7ff;
bfd_vma j1 = (lower_insn & (1 << 13)) >> 13;
bfd_vma j2 = (lower_insn & (1 << 11)) >> 11;
bfd_vma i1 = j1 ^ s ? 0 : 1;
bfd_vma i2 = j2 ^ s ? 0 : 1;
addend = (i1 << 23) | (i2 << 22) | (upper << 12) | (lower << 1);
addend = (addend | ((s ? 0 : 1) << 24)) - (1 << 24);
signed_addend = addend;
}
if (r_type == R_ARM_THM_XPC22)
{
if (sym_flags == STT_ARM_TFUNC)
(*_bfd_error_handler)
(_("%B: Warning: Thumb BLX instruction targets thumb function '%s'."),
input_bfd,
h ? h->root.root.string : "(local)");
}
else
{
if (sym_flags != STT_ARM_TFUNC && sym_flags != STT_SECTION
&& (h == NULL || splt == NULL
|| h->plt.offset == (bfd_vma) -1))
{
if (globals->use_blx)
{
lower_insn = (lower_insn & ~0x1000) | 0x0800;
}
else if (elf32_thumb_to_arm_stub
(info, sym_name, input_bfd, output_bfd, input_section,
hit_data, sym_sec, rel->r_offset, signed_addend, value,
error_message))
return bfd_reloc_ok;
else
return bfd_reloc_dangerous;
}
else if (sym_flags == STT_ARM_TFUNC && globals->use_blx)
{
lower_insn |= 0x1800;
}
}
if (h != NULL && splt != NULL && h->plt.offset != (bfd_vma) -1)
{
value = (splt->output_section->vma
+ splt->output_offset
+ h->plt.offset);
if (globals->use_blx)
{
lower_insn = (lower_insn & ~0x1000) | 0x0800;
}
else
value -= PLT_THUMB_STUB_SIZE;
*unresolved_reloc_p = FALSE;
}
relocation = value + signed_addend;
relocation -= (input_section->output_section->vma
+ input_section->output_offset
+ rel->r_offset);
check = relocation >> howto->rightshift;
if ((bfd_signed_vma) relocation >= 0)
signed_check = check;
else
signed_check = check | ~((bfd_vma) -1 >> howto->rightshift);
bitsize = howto->bitsize;
if (!thumb2)
bitsize -= 2;
reloc_signed_max = ((1 << (bitsize - 1)) - 1) >> howto->rightshift;
reloc_signed_min = ~reloc_signed_max;
if (signed_check > reloc_signed_max || signed_check < reloc_signed_min)
overflow = TRUE;
if ((lower_insn & 0x1800) == 0x0800)
relocation = (relocation + 2) & ~ 3;
reloc_sign = (signed_check < 0) ? 1 : 0;
upper_insn = (upper_insn & ~(bfd_vma) 0x7ff)
| ((relocation >> 12) & 0x3ff)
| (reloc_sign << 10);
lower_insn = (lower_insn & ~(bfd_vma) 0x2fff)
| (((!((relocation >> 23) & 1)) ^ reloc_sign) << 13)
| (((!((relocation >> 22) & 1)) ^ reloc_sign) << 11)
| ((relocation >> 1) & 0x7ff);
bfd_put_16 (input_bfd, upper_insn, hit_data);
bfd_put_16 (input_bfd, lower_insn, hit_data + 2);
return (overflow ? bfd_reloc_overflow : bfd_reloc_ok);
}
break;
case R_ARM_THM_JUMP24:
{
bfd_vma relocation;
bfd_boolean overflow = FALSE;
bfd_vma upper_insn = bfd_get_16 (input_bfd, hit_data);
bfd_vma lower_insn = bfd_get_16 (input_bfd, hit_data + 2);
bfd_signed_vma reloc_signed_max = ((1 << (howto->bitsize - 1)) - 1) >> howto->rightshift;
bfd_signed_vma reloc_signed_min = ~ reloc_signed_max;
bfd_vma check;
bfd_signed_vma signed_check;
if (globals->use_rel)
{
bfd_vma S = (upper_insn & 0x0400) >> 10;
bfd_vma hi = (upper_insn & 0x03ff);
bfd_vma I1 = (lower_insn & 0x2000) >> 13;
bfd_vma I2 = (lower_insn & 0x0800) >> 11;
bfd_vma lo = (lower_insn & 0x07ff);
I1 = !(I1 ^ S);
I2 = !(I2 ^ S);
S = !S;
signed_addend = (S << 24) | (I1 << 23) | (I2 << 22) | (hi << 12) | (lo << 1);
signed_addend -= (1 << 24);
}
relocation = value + signed_addend;
relocation -= (input_section->output_section->vma
+ input_section->output_offset
+ rel->r_offset);
check = relocation >> howto->rightshift;
if ((bfd_signed_vma) relocation >= 0)
signed_check = check;
else
signed_check = check | ~((bfd_vma) -1 >> howto->rightshift);
if (signed_check > reloc_signed_max || signed_check < reloc_signed_min)
overflow = TRUE;
{
bfd_vma S = (relocation & 0x01000000) >> 24;
bfd_vma I1 = (relocation & 0x00800000) >> 23;
bfd_vma I2 = (relocation & 0x00400000) >> 22;
bfd_vma hi = (relocation & 0x003ff000) >> 12;
bfd_vma lo = (relocation & 0x00000ffe) >> 1;
I1 = !(I1 ^ S);
I2 = !(I2 ^ S);
upper_insn = (upper_insn & (bfd_vma) 0xf800) | (S << 10) | hi;
lower_insn = (lower_insn & (bfd_vma) 0xd000) | (I1 << 13) | (I2 << 11) | lo;
}
bfd_put_16 (input_bfd, upper_insn, hit_data);
bfd_put_16 (input_bfd, lower_insn, hit_data + 2);
return (overflow ? bfd_reloc_overflow : bfd_reloc_ok);
}
case R_ARM_THM_JUMP19:
{
bfd_vma relocation;
bfd_boolean overflow = FALSE;
bfd_vma upper_insn = bfd_get_16 (input_bfd, hit_data);
bfd_vma lower_insn = bfd_get_16 (input_bfd, hit_data + 2);
bfd_signed_vma reloc_signed_max = ((1 << (howto->bitsize - 1)) - 1) >> howto->rightshift;
bfd_signed_vma reloc_signed_min = ~ reloc_signed_max;
bfd_vma check;
bfd_signed_vma signed_check;
if (globals->use_rel)
{
bfd_vma S = (upper_insn & 0x0400) >> 10;
bfd_vma upper = (upper_insn & 0x001f);
bfd_vma J1 = (lower_insn & 0x2000) >> 13;
bfd_vma J2 = (lower_insn & 0x0800) >> 11;
bfd_vma lower = (lower_insn & 0x07ff);
upper |= J2 << 6;
upper |= J1 << 7;
upper |= ~S << 8;
upper -= 0x0100;
addend = (upper << 12) | (lower << 1);
signed_addend = addend;
}
relocation = value + signed_addend;
relocation -= (input_section->output_section->vma
+ input_section->output_offset
+ rel->r_offset);
check = relocation >> howto->rightshift;
if ((bfd_signed_vma) relocation >= 0)
signed_check = check;
else
signed_check = check | ~((bfd_vma) -1 >> howto->rightshift);
if (signed_check > reloc_signed_max || signed_check < reloc_signed_min)
overflow = TRUE;
{
bfd_vma S = (relocation & 0x00100000) >> 20;
bfd_vma J2 = (relocation & 0x00080000) >> 19;
bfd_vma J1 = (relocation & 0x00040000) >> 18;
bfd_vma hi = (relocation & 0x0003f000) >> 12;
bfd_vma lo = (relocation & 0x00000ffe) >> 1;
upper_insn = (upper_insn & 0xfb30) | (S << 10) | hi;
lower_insn = (lower_insn & 0xd000) | (J1 << 13) | (J2 << 11) | lo;
}
bfd_put_16 (input_bfd, upper_insn, hit_data);
bfd_put_16 (input_bfd, lower_insn, hit_data + 2);
return (overflow ? bfd_reloc_overflow : bfd_reloc_ok);
}
case R_ARM_THM_JUMP11:
case R_ARM_THM_JUMP8:
case R_ARM_THM_JUMP6:
{
bfd_signed_vma relocation;
bfd_signed_vma reloc_signed_max = (1 << (howto->bitsize - 1)) - 1;
bfd_signed_vma reloc_signed_min = ~ reloc_signed_max;
bfd_signed_vma signed_check;
if (r_type == R_ARM_THM_JUMP6)
reloc_signed_min = 0;
if (globals->use_rel)
{
addend = bfd_get_16 (input_bfd, hit_data) & howto->src_mask;
if (addend & ((howto->src_mask + 1) >> 1))
{
signed_addend = -1;
signed_addend &= ~ howto->src_mask;
signed_addend |= addend;
}
else
signed_addend = addend;
signed_addend <<= howto->rightshift;
}
relocation = value + signed_addend;
relocation -= (input_section->output_section->vma
+ input_section->output_offset
+ rel->r_offset);
relocation >>= howto->rightshift;
signed_check = relocation;
if (r_type == R_ARM_THM_JUMP6)
relocation = ((relocation & 0x0020) << 4) | ((relocation & 0x001f) << 3);
else
relocation &= howto->dst_mask;
relocation |= (bfd_get_16 (input_bfd, hit_data) & (~ howto->dst_mask));
bfd_put_16 (input_bfd, relocation, hit_data);
if (signed_check > reloc_signed_max || signed_check < reloc_signed_min)
return bfd_reloc_overflow;
return bfd_reloc_ok;
}
case R_ARM_ALU_PCREL7_0:
case R_ARM_ALU_PCREL15_8:
case R_ARM_ALU_PCREL23_15:
{
bfd_vma insn;
bfd_vma relocation;
insn = bfd_get_32 (input_bfd, hit_data);
if (globals->use_rel)
{
addend = (insn & 0xff) << ((insn & 0xf00) >> 7);
signed_addend = addend;
}
relocation = value + signed_addend;
relocation -= (input_section->output_section->vma
+ input_section->output_offset
+ rel->r_offset);
insn = (insn & ~0xfff)
| ((howto->bitpos << 7) & 0xf00)
| ((relocation >> howto->bitpos) & 0xff);
bfd_put_32 (input_bfd, value, hit_data);
}
return bfd_reloc_ok;
case R_ARM_GNU_VTINHERIT:
case R_ARM_GNU_VTENTRY:
return bfd_reloc_ok;
case R_ARM_GOTOFF32:
BFD_ASSERT (sgot != NULL);
if (sgot == NULL)
return bfd_reloc_notsupported;
if (sym_flags == STT_ARM_TFUNC)
value += 1;
value -= sgot->output_section->vma;
return _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset, value,
rel->r_addend);
case R_ARM_GOTPC:
BFD_ASSERT (sgot != NULL);
if (sgot == NULL)
return bfd_reloc_notsupported;
*unresolved_reloc_p = FALSE;
value = sgot->output_section->vma;
return _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset, value,
rel->r_addend);
case R_ARM_GOT32:
case R_ARM_GOT_PREL:
if (sgot == NULL)
return bfd_reloc_notsupported;
if (h != NULL)
{
bfd_vma off;
bfd_boolean dyn;
off = h->got.offset;
BFD_ASSERT (off != (bfd_vma) -1);
dyn = globals->root.dynamic_sections_created;
if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
|| (info->shared
&& SYMBOL_REFERENCES_LOCAL (info, h))
|| (ELF_ST_VISIBILITY (h->other)
&& h->root.type == bfd_link_hash_undefweak))
{
if ((off & 1) != 0)
off &= ~1;
else
{
if (sym_flags == STT_ARM_TFUNC)
value |= 1;
bfd_put_32 (output_bfd, value, sgot->contents + off);
h->got.offset |= 1;
}
}
else
*unresolved_reloc_p = FALSE;
value = sgot->output_offset + off;
}
else
{
bfd_vma off;
BFD_ASSERT (local_got_offsets != NULL &&
local_got_offsets[r_symndx] != (bfd_vma) -1);
off = local_got_offsets[r_symndx];
if ((off & 1) != 0)
off &= ~1;
else
{
if (sym_flags == STT_ARM_TFUNC)
value |= 1;
if (globals->use_rel)
bfd_put_32 (output_bfd, value, sgot->contents + off);
if (info->shared)
{
asection * srelgot;
Elf_Internal_Rela outrel;
bfd_byte *loc;
srelgot = (bfd_get_section_by_name
(dynobj, RELOC_SECTION (globals, ".got")));
BFD_ASSERT (srelgot != NULL);
outrel.r_addend = addend + value;
outrel.r_offset = (sgot->output_section->vma
+ sgot->output_offset
+ off);
outrel.r_info = ELF32_R_INFO (0, R_ARM_RELATIVE);
loc = srelgot->contents;
loc += srelgot->reloc_count++ * RELOC_SIZE (globals);
SWAP_RELOC_OUT (globals) (output_bfd, &outrel, loc);
}
local_got_offsets[r_symndx] |= 1;
}
value = sgot->output_offset + off;
}
if (r_type != R_ARM_GOT32)
value += sgot->output_section->vma;
return _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset, value,
rel->r_addend);
case R_ARM_TLS_LDO32:
value = value - dtpoff_base (info);
return _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset, value,
rel->r_addend);
case R_ARM_TLS_LDM32:
{
bfd_vma off;
if (globals->sgot == NULL)
abort ();
off = globals->tls_ldm_got.offset;
if ((off & 1) != 0)
off &= ~1;
else
{
if (info->shared)
{
Elf_Internal_Rela outrel;
bfd_byte *loc;
if (globals->srelgot == NULL)
abort ();
outrel.r_addend = 0;
outrel.r_offset = (globals->sgot->output_section->vma
+ globals->sgot->output_offset + off);
outrel.r_info = ELF32_R_INFO (0, R_ARM_TLS_DTPMOD32);
if (globals->use_rel)
bfd_put_32 (output_bfd, outrel.r_addend,
globals->sgot->contents + off);
loc = globals->srelgot->contents;
loc += globals->srelgot->reloc_count++ * RELOC_SIZE (globals);
SWAP_RELOC_OUT (globals) (output_bfd, &outrel, loc);
}
else
bfd_put_32 (output_bfd, 1, globals->sgot->contents + off);
globals->tls_ldm_got.offset |= 1;
}
value = globals->sgot->output_section->vma + globals->sgot->output_offset + off
- (input_section->output_section->vma + input_section->output_offset + rel->r_offset);
return _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset, value,
rel->r_addend);
}
case R_ARM_TLS_GD32:
case R_ARM_TLS_IE32:
{
bfd_vma off;
int indx;
char tls_type;
if (globals->sgot == NULL)
abort ();
indx = 0;
if (h != NULL)
{
bfd_boolean dyn;
dyn = globals->root.dynamic_sections_created;
if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
&& (!info->shared
|| !SYMBOL_REFERENCES_LOCAL (info, h)))
{
*unresolved_reloc_p = FALSE;
indx = h->dynindx;
}
off = h->got.offset;
tls_type = ((struct elf32_arm_link_hash_entry *) h)->tls_type;
}
else
{
if (local_got_offsets == NULL)
abort ();
off = local_got_offsets[r_symndx];
tls_type = elf32_arm_local_got_tls_type (input_bfd)[r_symndx];
}
if (tls_type == GOT_UNKNOWN)
abort ();
if ((off & 1) != 0)
off &= ~1;
else
{
bfd_boolean need_relocs = FALSE;
Elf_Internal_Rela outrel;
bfd_byte *loc = NULL;
int cur_off = off;
if ((info->shared || indx != 0)
&& (h == NULL
|| ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|| h->root.type != bfd_link_hash_undefweak))
{
need_relocs = TRUE;
if (globals->srelgot == NULL)
abort ();
loc = globals->srelgot->contents;
loc += globals->srelgot->reloc_count * RELOC_SIZE (globals);
}
if (tls_type & GOT_TLS_GD)
{
if (need_relocs)
{
outrel.r_addend = 0;
outrel.r_offset = (globals->sgot->output_section->vma
+ globals->sgot->output_offset
+ cur_off);
outrel.r_info = ELF32_R_INFO (indx, R_ARM_TLS_DTPMOD32);
if (globals->use_rel)
bfd_put_32 (output_bfd, outrel.r_addend,
globals->sgot->contents + cur_off);
SWAP_RELOC_OUT (globals) (output_bfd, &outrel, loc);
globals->srelgot->reloc_count++;
loc += RELOC_SIZE (globals);
if (indx == 0)
bfd_put_32 (output_bfd, value - dtpoff_base (info),
globals->sgot->contents + cur_off + 4);
else
{
outrel.r_addend = 0;
outrel.r_info = ELF32_R_INFO (indx,
R_ARM_TLS_DTPOFF32);
outrel.r_offset += 4;
if (globals->use_rel)
bfd_put_32 (output_bfd, outrel.r_addend,
globals->sgot->contents + cur_off + 4);
SWAP_RELOC_OUT (globals) (output_bfd, &outrel, loc);
globals->srelgot->reloc_count++;
loc += RELOC_SIZE (globals);
}
}
else
{
bfd_put_32 (output_bfd, 1,
globals->sgot->contents + cur_off);
bfd_put_32 (output_bfd, value - dtpoff_base (info),
globals->sgot->contents + cur_off + 4);
}
cur_off += 8;
}
if (tls_type & GOT_TLS_IE)
{
if (need_relocs)
{
if (indx == 0)
outrel.r_addend = value - dtpoff_base (info);
else
outrel.r_addend = 0;
outrel.r_offset = (globals->sgot->output_section->vma
+ globals->sgot->output_offset
+ cur_off);
outrel.r_info = ELF32_R_INFO (indx, R_ARM_TLS_TPOFF32);
if (globals->use_rel)
bfd_put_32 (output_bfd, outrel.r_addend,
globals->sgot->contents + cur_off);
SWAP_RELOC_OUT (globals) (output_bfd, &outrel, loc);
globals->srelgot->reloc_count++;
loc += RELOC_SIZE (globals);
}
else
bfd_put_32 (output_bfd, tpoff (info, value),
globals->sgot->contents + cur_off);
cur_off += 4;
}
if (h != NULL)
h->got.offset |= 1;
else
local_got_offsets[r_symndx] |= 1;
}
if ((tls_type & GOT_TLS_GD) && r_type != R_ARM_TLS_GD32)
off += 8;
value = globals->sgot->output_section->vma + globals->sgot->output_offset + off
- (input_section->output_section->vma + input_section->output_offset + rel->r_offset);
return _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset, value,
rel->r_addend);
}
case R_ARM_TLS_LE32:
if (info->shared)
{
(*_bfd_error_handler)
(_("%B(%A+0x%lx): R_ARM_TLS_LE32 relocation not permitted in shared object"),
input_bfd, input_section,
(long) rel->r_offset, howto->name);
return FALSE;
}
else
value = tpoff (info, value);
return _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset, value,
rel->r_addend);
case R_ARM_V4BX:
if (globals->fix_v4bx)
{
bfd_vma insn = bfd_get_32 (input_bfd, hit_data);
BFD_ASSERT ((insn & 0x0ffffff0) == 0x012fff10);
insn = (insn & 0xf000000f) | 0x01a0f000;
bfd_put_32 (input_bfd, insn, hit_data);
}
return bfd_reloc_ok;
case R_ARM_MOVW_ABS_NC:
case R_ARM_MOVT_ABS:
case R_ARM_MOVW_PREL_NC:
case R_ARM_MOVT_PREL:
case R_ARM_MOVW_BREL_NC:
case R_ARM_MOVW_BREL:
case R_ARM_MOVT_BREL:
{
bfd_vma insn = bfd_get_32 (input_bfd, hit_data);
if (globals->use_rel)
{
addend = ((insn >> 4) & 0xf000) | (insn & 0xfff);
signed_addend = (addend ^ 0x10000) - 0x10000;
}
value += signed_addend;
if (r_type == R_ARM_MOVW_PREL_NC || r_type == R_ARM_MOVT_PREL)
value -= (input_section->output_section->vma
+ input_section->output_offset + rel->r_offset);
if (r_type == R_ARM_MOVW_BREL && value >= 0x10000)
return bfd_reloc_overflow;
if (sym_flags == STT_ARM_TFUNC)
value |= 1;
if (r_type == R_ARM_MOVT_ABS || r_type == R_ARM_MOVT_PREL
|| r_type == R_ARM_MOVT_BREL)
value >>= 16;
insn &= 0xfff0f000;
insn |= value & 0xfff;
insn |= (value & 0xf000) << 4;
bfd_put_32 (input_bfd, insn, hit_data);
}
return bfd_reloc_ok;
case R_ARM_THM_MOVW_ABS_NC:
case R_ARM_THM_MOVT_ABS:
case R_ARM_THM_MOVW_PREL_NC:
case R_ARM_THM_MOVT_PREL:
case R_ARM_THM_MOVW_BREL_NC:
case R_ARM_THM_MOVW_BREL:
case R_ARM_THM_MOVT_BREL:
{
bfd_vma insn;
insn = bfd_get_16 (input_bfd, hit_data) << 16;
insn |= bfd_get_16 (input_bfd, hit_data + 2);
if (globals->use_rel)
{
addend = ((insn >> 4) & 0xf000)
| ((insn >> 15) & 0x0800)
| ((insn >> 4) & 0x0700)
| (insn & 0x00ff);
signed_addend = (addend ^ 0x10000) - 0x10000;
}
value += signed_addend;
if (r_type == R_ARM_THM_MOVW_PREL_NC || r_type == R_ARM_THM_MOVT_PREL)
value -= (input_section->output_section->vma
+ input_section->output_offset + rel->r_offset);
if (r_type == R_ARM_THM_MOVW_BREL && value >= 0x10000)
return bfd_reloc_overflow;
if (sym_flags == STT_ARM_TFUNC)
value |= 1;
if (r_type == R_ARM_THM_MOVT_ABS || r_type == R_ARM_THM_MOVT_PREL
|| r_type == R_ARM_THM_MOVT_BREL)
value >>= 16;
insn &= 0xfbf08f00;
insn |= (value & 0xf000) << 4;
insn |= (value & 0x0800) << 15;
insn |= (value & 0x0700) << 4;
insn |= (value & 0x00ff);
bfd_put_16 (input_bfd, insn >> 16, hit_data);
bfd_put_16 (input_bfd, insn & 0xffff, hit_data + 2);
}
return bfd_reloc_ok;
case R_ARM_ALU_PC_G0_NC:
case R_ARM_ALU_PC_G1_NC:
case R_ARM_ALU_PC_G0:
case R_ARM_ALU_PC_G1:
case R_ARM_ALU_PC_G2:
case R_ARM_ALU_SB_G0_NC:
case R_ARM_ALU_SB_G1_NC:
case R_ARM_ALU_SB_G0:
case R_ARM_ALU_SB_G1:
case R_ARM_ALU_SB_G2:
{
bfd_vma insn = bfd_get_32 (input_bfd, hit_data);
bfd_vma pc = input_section->output_section->vma
+ input_section->output_offset + rel->r_offset;
bfd_vma sb = 0;
bfd_vma residual;
bfd_vma g_n;
bfd_signed_vma signed_value;
int group = 0;
switch (r_type)
{
case R_ARM_ALU_PC_G0_NC:
case R_ARM_ALU_PC_G0:
case R_ARM_ALU_SB_G0_NC:
case R_ARM_ALU_SB_G0:
group = 0;
break;
case R_ARM_ALU_PC_G1_NC:
case R_ARM_ALU_PC_G1:
case R_ARM_ALU_SB_G1_NC:
case R_ARM_ALU_SB_G1:
group = 1;
break;
case R_ARM_ALU_PC_G2:
case R_ARM_ALU_SB_G2:
group = 2;
break;
default:
abort();
}
if (globals->use_rel)
{
int negative;
bfd_vma constant = insn & 0xff;
bfd_vma rotation = (insn & 0xf00) >> 8;
if (rotation == 0)
signed_addend = constant;
else
{
rotation *= 2;
signed_addend = (constant >> rotation) |
(constant << (8 * sizeof (bfd_vma) - rotation));
}
negative = identify_add_or_sub (insn);
if (negative == 0)
{
(*_bfd_error_handler)
(_("%B(%A+0x%lx): Only ADD or SUB instructions are allowed for ALU group relocations"),
input_bfd, input_section,
(long) rel->r_offset, howto->name);
return bfd_reloc_overflow;
}
signed_addend *= negative;
}
if (r_type == R_ARM_ALU_PC_G0_NC
|| r_type == R_ARM_ALU_PC_G1_NC
|| r_type == R_ARM_ALU_PC_G0
|| r_type == R_ARM_ALU_PC_G1
|| r_type == R_ARM_ALU_PC_G2)
signed_value = value - pc + signed_addend;
else
signed_value = value - sb + signed_addend;
if (sym_flags == STT_ARM_TFUNC)
signed_value |= 1;
g_n = calculate_group_reloc_mask (abs (signed_value), group,
&residual);
if ((r_type == R_ARM_ALU_PC_G0
|| r_type == R_ARM_ALU_PC_G1
|| r_type == R_ARM_ALU_PC_G2
|| r_type == R_ARM_ALU_SB_G0
|| r_type == R_ARM_ALU_SB_G1
|| r_type == R_ARM_ALU_SB_G2) && residual != 0)
{
(*_bfd_error_handler)
(_("%B(%A+0x%lx): Overflow whilst splitting 0x%lx for group relocation %s"),
input_bfd, input_section,
(long) rel->r_offset, abs (signed_value), howto->name);
return bfd_reloc_overflow;
}
insn &= 0xff1ff000;
if (signed_value < 0)
insn |= 1 << 22;
else
insn |= 1 << 23;
insn |= g_n;
bfd_put_32 (input_bfd, insn, hit_data);
}
return bfd_reloc_ok;
case R_ARM_LDR_PC_G0:
case R_ARM_LDR_PC_G1:
case R_ARM_LDR_PC_G2:
case R_ARM_LDR_SB_G0:
case R_ARM_LDR_SB_G1:
case R_ARM_LDR_SB_G2:
{
bfd_vma insn = bfd_get_32 (input_bfd, hit_data);
bfd_vma pc = input_section->output_section->vma
+ input_section->output_offset + rel->r_offset;
bfd_vma sb = 0;
bfd_vma residual;
bfd_signed_vma signed_value;
int group = 0;
switch (r_type)
{
case R_ARM_LDR_PC_G0:
case R_ARM_LDR_SB_G0:
group = 0;
break;
case R_ARM_LDR_PC_G1:
case R_ARM_LDR_SB_G1:
group = 1;
break;
case R_ARM_LDR_PC_G2:
case R_ARM_LDR_SB_G2:
group = 2;
break;
default:
abort();
}
if (globals->use_rel)
{
int negative = (insn & (1 << 23)) ? 1 : -1;
signed_addend = negative * (insn & 0xfff);
}
if (r_type == R_ARM_LDR_PC_G0
|| r_type == R_ARM_LDR_PC_G1
|| r_type == R_ARM_LDR_PC_G2)
signed_value = value - pc + signed_addend;
else
signed_value = value - sb + signed_addend;
calculate_group_reloc_mask (abs (signed_value), group - 1, &residual);
if (residual >= 0x1000)
{
(*_bfd_error_handler)
(_("%B(%A+0x%lx): Overflow whilst splitting 0x%lx for group relocation %s"),
input_bfd, input_section,
(long) rel->r_offset, abs (signed_value), howto->name);
return bfd_reloc_overflow;
}
insn &= 0xff7ff000;
if (signed_value >= 0)
insn |= 1 << 23;
insn |= residual;
bfd_put_32 (input_bfd, insn, hit_data);
}
return bfd_reloc_ok;
case R_ARM_LDRS_PC_G0:
case R_ARM_LDRS_PC_G1:
case R_ARM_LDRS_PC_G2:
case R_ARM_LDRS_SB_G0:
case R_ARM_LDRS_SB_G1:
case R_ARM_LDRS_SB_G2:
{
bfd_vma insn = bfd_get_32 (input_bfd, hit_data);
bfd_vma pc = input_section->output_section->vma
+ input_section->output_offset + rel->r_offset;
bfd_vma sb = 0;
bfd_vma residual;
bfd_signed_vma signed_value;
int group = 0;
switch (r_type)
{
case R_ARM_LDRS_PC_G0:
case R_ARM_LDRS_SB_G0:
group = 0;
break;
case R_ARM_LDRS_PC_G1:
case R_ARM_LDRS_SB_G1:
group = 1;
break;
case R_ARM_LDRS_PC_G2:
case R_ARM_LDRS_SB_G2:
group = 2;
break;
default:
abort();
}
if (globals->use_rel)
{
int negative = (insn & (1 << 23)) ? 1 : -1;
signed_addend = negative * (((insn & 0xf00) >> 4) + (insn & 0xf));
}
if (r_type == R_ARM_LDRS_PC_G0
|| r_type == R_ARM_LDRS_PC_G1
|| r_type == R_ARM_LDRS_PC_G2)
signed_value = value - pc + signed_addend;
else
signed_value = value - sb + signed_addend;
calculate_group_reloc_mask (abs (signed_value), group - 1, &residual);
if (residual >= 0x100)
{
(*_bfd_error_handler)
(_("%B(%A+0x%lx): Overflow whilst splitting 0x%lx for group relocation %s"),
input_bfd, input_section,
(long) rel->r_offset, abs (signed_value), howto->name);
return bfd_reloc_overflow;
}
insn &= 0xff7ff0f0;
if (signed_value >= 0)
insn |= 1 << 23;
insn |= ((residual & 0xf0) << 4) | (residual & 0xf);
bfd_put_32 (input_bfd, insn, hit_data);
}
return bfd_reloc_ok;
case R_ARM_LDC_PC_G0:
case R_ARM_LDC_PC_G1:
case R_ARM_LDC_PC_G2:
case R_ARM_LDC_SB_G0:
case R_ARM_LDC_SB_G1:
case R_ARM_LDC_SB_G2:
{
bfd_vma insn = bfd_get_32 (input_bfd, hit_data);
bfd_vma pc = input_section->output_section->vma
+ input_section->output_offset + rel->r_offset;
bfd_vma sb = 0;
bfd_vma residual;
bfd_signed_vma signed_value;
int group = 0;
switch (r_type)
{
case R_ARM_LDC_PC_G0:
case R_ARM_LDC_SB_G0:
group = 0;
break;
case R_ARM_LDC_PC_G1:
case R_ARM_LDC_SB_G1:
group = 1;
break;
case R_ARM_LDC_PC_G2:
case R_ARM_LDC_SB_G2:
group = 2;
break;
default:
abort();
}
if (globals->use_rel)
{
int negative = (insn & (1 << 23)) ? 1 : -1;
signed_addend = negative * ((insn & 0xff) << 2);
}
if (r_type == R_ARM_LDC_PC_G0
|| r_type == R_ARM_LDC_PC_G1
|| r_type == R_ARM_LDC_PC_G2)
signed_value = value - pc + signed_addend;
else
signed_value = value - sb + signed_addend;
calculate_group_reloc_mask (abs (signed_value), group - 1, &residual);
if ((residual & 0x3) != 0 || residual >= 0x400)
{
(*_bfd_error_handler)
(_("%B(%A+0x%lx): Overflow whilst splitting 0x%lx for group relocation %s"),
input_bfd, input_section,
(long) rel->r_offset, abs (signed_value), howto->name);
return bfd_reloc_overflow;
}
insn &= 0xff7fff00;
if (signed_value >= 0)
insn |= 1 << 23;
insn |= residual >> 2;
bfd_put_32 (input_bfd, insn, hit_data);
}
return bfd_reloc_ok;
default:
return bfd_reloc_notsupported;
}
}
static int
uleb128_size (unsigned int i)
{
int size;
size = 1;
while (i >= 0x80)
{
i >>= 7;
size++;
}
return size;
}
static bfd_boolean
is_default_attr (aeabi_attribute *attr)
{
if ((attr->type & 1) && attr->i != 0)
return FALSE;
if ((attr->type & 2) && attr->s && *attr->s)
return FALSE;
return TRUE;
}
static bfd_vma
eabi_attr_size(int tag, aeabi_attribute *attr)
{
bfd_vma size;
if (is_default_attr (attr))
return 0;
size = uleb128_size (tag);
if (attr->type & 1)
size += uleb128_size (attr->i);
if (attr->type & 2)
size += strlen ((char *)attr->s) + 1;
return size;
}
bfd_vma
elf32_arm_eabi_attr_size (bfd *abfd)
{
bfd_vma size;
aeabi_attribute *attr;
aeabi_attribute_list *list;
int i;
attr = elf32_arm_tdata (abfd)->known_eabi_attributes;
size = 16;
for (i = 4; i < NUM_KNOWN_ATTRIBUTES; i++)
size += eabi_attr_size (i, &attr[i]);
for (list = elf32_arm_tdata (abfd)->other_eabi_attributes;
list;
list = list->next)
size += eabi_attr_size (list->tag, &list->attr);
return size;
}
static bfd_byte *
write_uleb128 (bfd_byte *p, unsigned int val)
{
bfd_byte c;
do
{
c = val & 0x7f;
val >>= 7;
if (val)
c |= 0x80;
*(p++) = c;
}
while (val);
return p;
}
static bfd_byte *
write_eabi_attribute (bfd_byte *p, int tag, aeabi_attribute *attr)
{
if (is_default_attr(attr))
return p;
p = write_uleb128 (p, tag);
if (attr->type & 1)
p = write_uleb128 (p, attr->i);
if (attr->type & 2)
{
int len;
len = strlen (attr->s) + 1;
memcpy (p, attr->s, len);
p += len;
}
return p;
}
void
elf32_arm_set_eabi_attr_contents (bfd *abfd, bfd_byte *contents, bfd_vma size)
{
bfd_byte *p;
aeabi_attribute *attr;
aeabi_attribute_list *list;
int i;
p = contents;
*(p++) = 'A';
bfd_put_32 (abfd, size - 1, p);
p += 4;
memcpy (p, "aeabi", 6);
p += 6;
*(p++) = Tag_File;
bfd_put_32 (abfd, size - 11, p);
p += 4;
attr = elf32_arm_tdata (abfd)->known_eabi_attributes;
for (i = 4; i < NUM_KNOWN_ATTRIBUTES; i++)
p = write_eabi_attribute (p, i, &attr[i]);
for (list = elf32_arm_tdata (abfd)->other_eabi_attributes;
list;
list = list->next)
p = write_eabi_attribute (p, list->tag, &list->attr);
}
static bfd_boolean
elf32_arm_bfd_final_link (bfd *abfd, struct bfd_link_info *info)
{
asection *o;
struct bfd_link_order *p;
asection *attr_section = NULL;
bfd_byte *contents;
bfd_vma size = 0;
for (o = abfd->sections; o != NULL; o = o->next)
{
if (strcmp (o->name, ".ARM.attributes") == 0)
{
for (p = o->map_head.link_order; p != NULL; p = p->next)
{
asection *input_section;
if (p->type != bfd_indirect_link_order)
continue;
input_section = p->u.indirect.section;
input_section->flags &= ~SEC_HAS_CONTENTS;
}
size = elf32_arm_eabi_attr_size (abfd);
bfd_set_section_size (abfd, o, size);
attr_section = o;
o->map_head.link_order = NULL;
}
}
if (!bfd_elf_final_link (abfd, info))
return FALSE;
if (attr_section)
{
contents = bfd_malloc(size);
if (contents == NULL)
return FALSE;
elf32_arm_set_eabi_attr_contents (abfd, contents, size);
bfd_set_section_contents (abfd, attr_section, contents, 0, size);
free (contents);
}
return TRUE;
}
static void
arm_add_to_rel (bfd * abfd,
bfd_byte * address,
reloc_howto_type * howto,
bfd_signed_vma increment)
{
bfd_signed_vma addend;
if (howto->type == R_ARM_THM_CALL)
{
int upper_insn, lower_insn;
int upper, lower;
upper_insn = bfd_get_16 (abfd, address);
lower_insn = bfd_get_16 (abfd, address + 2);
upper = upper_insn & 0x7ff;
lower = lower_insn & 0x7ff;
addend = (upper << 12) | (lower << 1);
addend += increment;
addend >>= 1;
upper_insn = (upper_insn & 0xf800) | ((addend >> 11) & 0x7ff);
lower_insn = (lower_insn & 0xf800) | (addend & 0x7ff);
bfd_put_16 (abfd, (bfd_vma) upper_insn, address);
bfd_put_16 (abfd, (bfd_vma) lower_insn, address + 2);
}
else
{
bfd_vma contents;
contents = bfd_get_32 (abfd, address);
addend = contents & howto->src_mask;
if (addend & ((howto->src_mask + 1) >> 1))
{
bfd_signed_vma mask;
mask = -1;
mask &= ~ howto->src_mask;
addend |= mask;
}
switch (howto->type)
{
default:
addend += increment;
break;
case R_ARM_PC24:
case R_ARM_PLT32:
case R_ARM_CALL:
case R_ARM_JUMP24:
addend <<= howto->size;
addend += increment;
addend >>= howto->rightshift;
break;
}
contents = (contents & ~ howto->dst_mask) | (addend & howto->dst_mask);
bfd_put_32 (abfd, contents, address);
}
}
#define IS_ARM_TLS_RELOC(R_TYPE) \
((R_TYPE) == R_ARM_TLS_GD32 \
|| (R_TYPE) == R_ARM_TLS_LDO32 \
|| (R_TYPE) == R_ARM_TLS_LDM32 \
|| (R_TYPE) == R_ARM_TLS_DTPOFF32 \
|| (R_TYPE) == R_ARM_TLS_DTPMOD32 \
|| (R_TYPE) == R_ARM_TLS_TPOFF32 \
|| (R_TYPE) == R_ARM_TLS_LE32 \
|| (R_TYPE) == R_ARM_TLS_IE32)
static bfd_boolean
elf32_arm_relocate_section (bfd * output_bfd,
struct bfd_link_info * info,
bfd * input_bfd,
asection * input_section,
bfd_byte * contents,
Elf_Internal_Rela * relocs,
Elf_Internal_Sym * local_syms,
asection ** local_sections)
{
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
Elf_Internal_Rela *rel;
Elf_Internal_Rela *relend;
const char *name;
struct elf32_arm_link_hash_table * globals;
globals = elf32_arm_hash_table (info);
if (info->relocatable && !globals->use_rel)
return TRUE;
symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
rel = relocs;
relend = relocs + input_section->reloc_count;
for (; rel < relend; rel++)
{
int r_type;
reloc_howto_type * howto;
unsigned long r_symndx;
Elf_Internal_Sym * sym;
asection * sec;
struct elf_link_hash_entry * h;
bfd_vma relocation;
bfd_reloc_status_type r;
arelent bfd_reloc;
char sym_type;
bfd_boolean unresolved_reloc = FALSE;
char *error_message = NULL;
r_symndx = ELF32_R_SYM (rel->r_info);
r_type = ELF32_R_TYPE (rel->r_info);
r_type = arm_real_reloc_type (globals, r_type);
if ( r_type == R_ARM_GNU_VTENTRY
|| r_type == R_ARM_GNU_VTINHERIT)
continue;
bfd_reloc.howto = elf32_arm_howto_from_type (r_type);
howto = bfd_reloc.howto;
if (info->relocatable && globals->use_rel)
{
if (r_symndx < symtab_hdr->sh_info)
{
sym = local_syms + r_symndx;
if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
{
sec = local_sections[r_symndx];
arm_add_to_rel (input_bfd, contents + rel->r_offset,
howto,
(bfd_signed_vma) (sec->output_offset
+ sym->st_value));
}
}
continue;
}
h = NULL;
sym = NULL;
sec = NULL;
if (r_symndx < symtab_hdr->sh_info)
{
sym = local_syms + r_symndx;
sym_type = ELF32_ST_TYPE (sym->st_info);
sec = local_sections[r_symndx];
if (globals->use_rel)
{
relocation = (sec->output_section->vma
+ sec->output_offset
+ sym->st_value);
if ((sec->flags & SEC_MERGE)
&& ELF_ST_TYPE (sym->st_info) == STT_SECTION)
{
asection *msec;
bfd_vma addend, value;
if (howto->rightshift)
{
(*_bfd_error_handler)
(_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"),
input_bfd, input_section,
(long) rel->r_offset, howto->name);
return FALSE;
}
value = bfd_get_32 (input_bfd, contents + rel->r_offset);
addend = value & howto->src_mask;
if (addend & ((howto->src_mask + 1) >> 1))
{
bfd_signed_vma mask;
mask = -1;
mask &= ~ howto->src_mask;
addend |= mask;
}
msec = sec;
addend =
_bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
- relocation;
addend += msec->output_section->vma + msec->output_offset;
value = (value & ~ howto->dst_mask) | (addend & howto->dst_mask);
bfd_put_32 (input_bfd, value, contents + rel->r_offset);
}
}
else
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
}
else
{
bfd_boolean warned;
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
r_symndx, symtab_hdr, sym_hashes,
h, sec, relocation,
unresolved_reloc, warned);
sym_type = h->type;
}
if (h != NULL)
name = h->root.root.string;
else
{
name = (bfd_elf_string_from_elf_section
(input_bfd, symtab_hdr->sh_link, sym->st_name));
if (name == NULL || *name == '\0')
name = bfd_section_name (input_bfd, sec);
}
if (r_symndx != 0
&& r_type != R_ARM_NONE
&& (h == NULL
|| h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak)
&& IS_ARM_TLS_RELOC (r_type) != (sym_type == STT_TLS))
{
(*_bfd_error_handler)
((sym_type == STT_TLS
? _("%B(%A+0x%lx): %s used with TLS symbol %s")
: _("%B(%A+0x%lx): %s used with non-TLS symbol %s")),
input_bfd,
input_section,
(long) rel->r_offset,
howto->name,
name);
}
r = elf32_arm_final_link_relocate (howto, input_bfd, output_bfd,
input_section, contents, rel,
relocation, info, sec, name,
(h ? ELF_ST_TYPE (h->type) :
ELF_ST_TYPE (sym->st_info)), h,
&unresolved_reloc, &error_message);
if (unresolved_reloc
&& !((input_section->flags & SEC_DEBUGGING) != 0
&& h->def_dynamic))
{
(*_bfd_error_handler)
(_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
input_bfd,
input_section,
(long) rel->r_offset,
howto->name,
h->root.root.string);
return FALSE;
}
if (r != bfd_reloc_ok)
{
switch (r)
{
case bfd_reloc_overflow:
if ((! h ||
h->root.type != bfd_link_hash_undefined)
&& (!((*info->callbacks->reloc_overflow)
(info, (h ? &h->root : NULL), name, howto->name,
(bfd_vma) 0, input_bfd, input_section,
rel->r_offset))))
return FALSE;
break;
case bfd_reloc_undefined:
if (!((*info->callbacks->undefined_symbol)
(info, name, input_bfd, input_section,
rel->r_offset, TRUE)))
return FALSE;
break;
case bfd_reloc_outofrange:
error_message = _("out of range");
goto common_error;
case bfd_reloc_notsupported:
error_message = _("unsupported relocation");
goto common_error;
case bfd_reloc_dangerous:
goto common_error;
default:
error_message = _("unknown error");
common_error:
BFD_ASSERT (error_message != NULL);
if (!((*info->callbacks->reloc_dangerous)
(info, error_message, input_bfd, input_section,
rel->r_offset)))
return FALSE;
break;
}
}
}
return TRUE;
}
static aeabi_attribute *
elf32_arm_new_eabi_attr (bfd *abfd, int tag)
{
aeabi_attribute *attr;
aeabi_attribute_list *list;
aeabi_attribute_list *p;
aeabi_attribute_list **lastp;
if (tag < NUM_KNOWN_ATTRIBUTES)
{
attr = &elf32_arm_tdata (abfd)->known_eabi_attributes[tag];
}
else
{
list = (aeabi_attribute_list *)
bfd_alloc (abfd, sizeof (aeabi_attribute_list));
memset (list, 0, sizeof (aeabi_attribute_list));
list->tag = tag;
lastp = &elf32_arm_tdata (abfd)->other_eabi_attributes;
for (p = *lastp; p; p = p->next)
{
if (tag < p->tag)
break;
lastp = &p->next;
}
list->next = *lastp;
*lastp = list;
attr = &list->attr;
}
return attr;
}
int
elf32_arm_get_eabi_attr_int (bfd *abfd, int tag)
{
aeabi_attribute_list *p;
if (tag < NUM_KNOWN_ATTRIBUTES)
{
return elf32_arm_tdata (abfd)->known_eabi_attributes[tag].i;
}
else
{
for (p = elf32_arm_tdata (abfd)->other_eabi_attributes;
p;
p = p->next)
{
if (tag == p->tag)
return p->attr.i;
if (tag < p->tag)
break;
}
return 0;
}
}
void
elf32_arm_add_eabi_attr_int (bfd *abfd, int tag, unsigned int i)
{
aeabi_attribute *attr;
attr = elf32_arm_new_eabi_attr (abfd, tag);
attr->type = 1;
attr->i = i;
}
static char *
attr_strdup (bfd *abfd, const char * s)
{
char * p;
int len;
len = strlen (s) + 1;
p = (char *)bfd_alloc(abfd, len);
return memcpy (p, s, len);
}
void
elf32_arm_add_eabi_attr_string (bfd *abfd, int tag, const char *s)
{
aeabi_attribute *attr;
attr = elf32_arm_new_eabi_attr (abfd, tag);
attr->type = 2;
attr->s = attr_strdup (abfd, s);
}
void
elf32_arm_add_eabi_attr_compat (bfd *abfd, unsigned int i, const char *s)
{
aeabi_attribute_list *list;
aeabi_attribute_list *p;
aeabi_attribute_list **lastp;
list = (aeabi_attribute_list *)
bfd_alloc (abfd, sizeof (aeabi_attribute_list));
memset (list, 0, sizeof (aeabi_attribute_list));
list->tag = Tag_compatibility;
list->attr.type = 3;
list->attr.i = i;
list->attr.s = attr_strdup (abfd, s);
lastp = &elf32_arm_tdata (abfd)->other_eabi_attributes;
for (p = *lastp; p; p = p->next)
{
int cmp;
if (p->tag != Tag_compatibility)
break;
cmp = strcmp(s, p->attr.s);
if (cmp < 0 || (cmp == 0 && i < p->attr.i))
break;
lastp = &p->next;
}
list->next = *lastp;
*lastp = list;
}
static bfd_boolean
elf32_arm_object_p (bfd *abfd)
{
unsigned int mach;
mach = bfd_arm_get_mach_from_notes (abfd, ARM_NOTE_SECTION);
if (mach != bfd_mach_arm_unknown)
bfd_default_set_arch_mach (abfd, bfd_arch_arm, mach);
else if (elf_elfheader (abfd)->e_flags & EF_ARM_MAVERICK_FLOAT)
bfd_default_set_arch_mach (abfd, bfd_arch_arm, bfd_mach_arm_ep9312);
else
bfd_default_set_arch_mach (abfd, bfd_arch_arm, mach);
return TRUE;
}
static bfd_boolean
elf32_arm_set_private_flags (bfd *abfd, flagword flags)
{
if (elf_flags_init (abfd)
&& elf_elfheader (abfd)->e_flags != flags)
{
if (EF_ARM_EABI_VERSION (flags) == EF_ARM_EABI_UNKNOWN)
{
if (flags & EF_ARM_INTERWORK)
(*_bfd_error_handler)
(_("Warning: Not setting interworking flag of %B since it has already been specified as non-interworking"),
abfd);
else
_bfd_error_handler
(_("Warning: Clearing the interworking flag of %B due to outside request"),
abfd);
}
}
else
{
elf_elfheader (abfd)->e_flags = flags;
elf_flags_init (abfd) = TRUE;
}
return TRUE;
}
static void
copy_eabi_attributes (bfd *ibfd, bfd *obfd)
{
aeabi_attribute *in_attr;
aeabi_attribute *out_attr;
aeabi_attribute_list *list;
int i;
in_attr = &elf32_arm_tdata (ibfd)->known_eabi_attributes[4];
out_attr = &elf32_arm_tdata (obfd)->known_eabi_attributes[4];
for (i = 4; i < NUM_KNOWN_ATTRIBUTES; i++)
{
out_attr->i = in_attr->i;
if (in_attr->s && *in_attr->s)
out_attr->s = attr_strdup (obfd, in_attr->s);
in_attr++;
out_attr++;
}
for (list = elf32_arm_tdata (ibfd)->other_eabi_attributes;
list;
list = list->next)
{
in_attr = &list->attr;
switch (in_attr->type)
{
case 1:
elf32_arm_add_eabi_attr_int (obfd, list->tag, in_attr->i);
break;
case 2:
elf32_arm_add_eabi_attr_string (obfd, list->tag, in_attr->s);
break;
case 3:
elf32_arm_add_eabi_attr_compat (obfd, in_attr->i, in_attr->s);
break;
default:
abort();
}
}
}
static bfd_boolean
elf32_arm_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
{
flagword in_flags;
flagword out_flags;
if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
return TRUE;
in_flags = elf_elfheader (ibfd)->e_flags;
out_flags = elf_elfheader (obfd)->e_flags;
if (elf_flags_init (obfd)
&& EF_ARM_EABI_VERSION (out_flags) == EF_ARM_EABI_UNKNOWN
&& in_flags != out_flags)
{
if ((in_flags & EF_ARM_APCS_26) != (out_flags & EF_ARM_APCS_26))
return FALSE;
if ((in_flags & EF_ARM_APCS_FLOAT) != (out_flags & EF_ARM_APCS_FLOAT))
return FALSE;
if ((in_flags & EF_ARM_INTERWORK) != (out_flags & EF_ARM_INTERWORK))
{
if (out_flags & EF_ARM_INTERWORK)
_bfd_error_handler
(_("Warning: Clearing the interworking flag of %B because non-interworking code in %B has been linked with it"),
obfd, ibfd);
in_flags &= ~EF_ARM_INTERWORK;
}
if ((in_flags & EF_ARM_PIC) != (out_flags & EF_ARM_PIC))
in_flags &= ~EF_ARM_PIC;
}
elf_elfheader (obfd)->e_flags = in_flags;
elf_flags_init (obfd) = TRUE;
elf_elfheader (obfd)->e_ident[EI_OSABI] =
elf_elfheader (ibfd)->e_ident[EI_OSABI];
copy_eabi_attributes (ibfd, obfd);
return TRUE;
}
enum
{
AEABI_R9_V6,
AEABI_R9_SB,
AEABI_R9_TLS,
AEABI_R9_unused
};
enum
{
AEABI_PCS_RW_data_absolute,
AEABI_PCS_RW_data_PCrel,
AEABI_PCS_RW_data_SBrel,
AEABI_PCS_RW_data_unused
};
enum
{
AEABI_enum_unused,
AEABI_enum_short,
AEABI_enum_wide,
AEABI_enum_forced_wide
};
static bfd_boolean
elf32_arm_merge_eabi_attributes (bfd *ibfd, bfd *obfd)
{
aeabi_attribute *in_attr;
aeabi_attribute *out_attr;
aeabi_attribute_list *in_list;
aeabi_attribute_list *out_list;
static const int order_312[3] = {3, 1, 2};
int i;
if (!elf32_arm_tdata (obfd)->known_eabi_attributes[0].i)
{
copy_eabi_attributes (ibfd, obfd);
elf32_arm_tdata (obfd)->known_eabi_attributes[0].i = 1;
return TRUE;
}
in_attr = elf32_arm_tdata (ibfd)->known_eabi_attributes;
out_attr = elf32_arm_tdata (obfd)->known_eabi_attributes;
if (in_attr[Tag_ABI_VFP_args].i != out_attr[Tag_ABI_VFP_args].i)
{
if (out_attr[Tag_ABI_FP_number_model].i == 0)
out_attr[Tag_ABI_VFP_args].i = in_attr[Tag_ABI_VFP_args].i;
else if (in_attr[Tag_ABI_FP_number_model].i != 0)
{
_bfd_error_handler
(_("ERROR: %B uses VFP register arguments, %B does not"),
ibfd, obfd);
return FALSE;
}
}
for (i = 4; i < NUM_KNOWN_ATTRIBUTES; i++)
{
switch (i)
{
case Tag_CPU_raw_name:
case Tag_CPU_name:
if (in_attr[Tag_CPU_arch].i > out_attr[Tag_CPU_arch].i
&& in_attr[i].s)
out_attr[i].s = attr_strdup(obfd, in_attr[i].s);
break;
case Tag_ABI_optimization_goals:
case Tag_ABI_FP_optimization_goals:
break;
case Tag_CPU_arch:
case Tag_ARM_ISA_use:
case Tag_THUMB_ISA_use:
case Tag_VFP_arch:
case Tag_WMMX_arch:
case Tag_NEON_arch:
case Tag_ABI_FP_rounding:
case Tag_ABI_FP_denormal:
case Tag_ABI_FP_exceptions:
case Tag_ABI_FP_user_exceptions:
case Tag_ABI_FP_number_model:
case Tag_ABI_align8_preserved:
case Tag_ABI_HardFP_use:
if (in_attr[i].i > out_attr[i].i)
out_attr[i].i = in_attr[i].i;
break;
case Tag_CPU_arch_profile:
if (out_attr[i].i && in_attr[i].i && in_attr[i].i != out_attr[i].i)
{
_bfd_error_handler
(_("ERROR: %B: Conflicting architecture profiles %c/%c"),
ibfd, in_attr[i].i, out_attr[i].i);
return FALSE;
}
if (in_attr[i].i)
out_attr[i].i = in_attr[i].i;
break;
case Tag_PCS_config:
if (out_attr[i].i == 0)
out_attr[i].i = in_attr[i].i;
else if (in_attr[i].i != 0 && out_attr[i].i != 0)
{
_bfd_error_handler
(_("Warning: %B: Conflicting platform configuration"), ibfd);
}
break;
case Tag_ABI_PCS_R9_use:
if (in_attr[i].i != out_attr[i].i
&& out_attr[i].i != AEABI_R9_unused
&& in_attr[i].i != AEABI_R9_unused)
{
_bfd_error_handler
(_("ERROR: %B: Conflicting use of R9"), ibfd);
return FALSE;
}
if (out_attr[i].i == AEABI_R9_unused)
out_attr[i].i = in_attr[i].i;
break;
case Tag_ABI_PCS_RW_data:
if (in_attr[i].i == AEABI_PCS_RW_data_SBrel
&& out_attr[Tag_ABI_PCS_R9_use].i != AEABI_R9_SB
&& out_attr[Tag_ABI_PCS_R9_use].i != AEABI_R9_unused)
{
_bfd_error_handler
(_("ERROR: %B: SB relative addressing conflicts with use of R9"),
ibfd);
return FALSE;
}
if (in_attr[i].i < out_attr[i].i)
out_attr[i].i = in_attr[i].i;
break;
case Tag_ABI_PCS_RO_data:
if (in_attr[i].i < out_attr[i].i)
out_attr[i].i = in_attr[i].i;
break;
case Tag_ABI_PCS_GOT_use:
if (in_attr[i].i > 2 || out_attr[i].i > 2
|| order_312[in_attr[i].i] < order_312[out_attr[i].i])
out_attr[i].i = in_attr[i].i;
break;
case Tag_ABI_PCS_wchar_t:
if (out_attr[i].i && in_attr[i].i && out_attr[i].i != in_attr[i].i)
{
_bfd_error_handler
(_("ERROR: %B: Conflicting definitions of wchar_t"), ibfd);
return FALSE;
}
if (in_attr[i].i)
out_attr[i].i = in_attr[i].i;
break;
case Tag_ABI_align8_needed:
if (in_attr[i].i > 2 || out_attr[i].i > 2
|| order_312[in_attr[i].i] < order_312[out_attr[i].i])
out_attr[i].i = in_attr[i].i;
break;
case Tag_ABI_enum_size:
if (in_attr[i].i != AEABI_enum_unused)
{
if (out_attr[i].i == AEABI_enum_unused
|| out_attr[i].i == AEABI_enum_forced_wide)
{
out_attr[i].i = in_attr[i].i;
}
else if (in_attr[i].i != AEABI_enum_forced_wide
&& out_attr[i].i != in_attr[i].i)
{
_bfd_error_handler
(_("ERROR: %B: Conflicting enum sizes"), ibfd);
}
}
break;
case Tag_ABI_VFP_args:
break;
case Tag_ABI_WMMX_args:
if (in_attr[i].i != out_attr[i].i)
{
_bfd_error_handler
(_("ERROR: %B uses iWMMXt register arguments, %B does not"),
ibfd, obfd);
return FALSE;
}
break;
default:
abort ();
}
}
in_list = elf32_arm_tdata (ibfd)->other_eabi_attributes;
out_list = elf32_arm_tdata (ibfd)->other_eabi_attributes;
while (in_list && in_list->tag == Tag_compatibility)
{
in_attr = &in_list->attr;
if (in_attr->i == 0)
continue;
if (in_attr->i == 1)
{
_bfd_error_handler
(_("ERROR: %B: Must be processed by '%s' toolchain"),
ibfd, in_attr->s);
return FALSE;
}
if (!out_list || out_list->tag != Tag_compatibility
|| strcmp (in_attr->s, out_list->attr.s) != 0)
{
elf32_arm_add_eabi_attr_compat (obfd, in_attr->i, in_attr->s);
continue;
}
out_attr = &out_list->attr;
for (;;)
{
if (out_list->tag != Tag_compatibility
|| in_attr->i != out_attr->i
|| strcmp (in_attr->s, out_attr->s) != 0)
{
_bfd_error_handler
(_("ERROR: %B: Incompatible object tag '%s':%d"),
ibfd, in_attr->s, in_attr->i);
return FALSE;
}
in_list = in_list->next;
if (in_list->tag != Tag_compatibility
|| strcmp (in_attr->s, in_list->attr.s) != 0)
break;
in_attr = &in_list->attr;
out_list = out_list->next;
if (out_list)
out_attr = &out_list->attr;
}
if (out_list && out_list->tag == Tag_compatibility
&& strcmp (in_attr->s, out_list->attr.s) == 0)
{
_bfd_error_handler
(_("ERROR: %B: Incompatible object tag '%s':%d"),
ibfd, in_attr->s, out_list->attr.i);
return FALSE;
}
}
for (; in_list; in_list = in_list->next)
{
if ((in_list->tag & 128) < 64)
{
_bfd_error_handler
(_("Warning: %B: Unknown EABI object attribute %d"),
ibfd, in_list->tag);
break;
}
}
return TRUE;
}
static bfd_boolean
elf32_arm_versions_compatible (unsigned iver, unsigned over)
{
if ((iver == EF_ARM_EABI_VER4 && over == EF_ARM_EABI_VER5)
|| (iver == EF_ARM_EABI_VER5 && over == EF_ARM_EABI_VER4))
return TRUE;
return (iver == over);
}
static bfd_boolean
elf32_arm_merge_private_bfd_data (bfd * ibfd, bfd * obfd)
{
flagword out_flags;
flagword in_flags;
bfd_boolean flags_compatible = TRUE;
asection *sec;
if (! _bfd_generic_verify_endian_match (ibfd, obfd))
return FALSE;
if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
return TRUE;
if (!elf32_arm_merge_eabi_attributes (ibfd, obfd))
return FALSE;
in_flags = elf_elfheader (ibfd)->e_flags;
out_flags = elf_elfheader (obfd)->e_flags;
if (!elf_flags_init (obfd))
{
if (bfd_get_arch_info (ibfd)->the_default
&& elf_elfheader (ibfd)->e_flags == 0)
return TRUE;
elf_flags_init (obfd) = TRUE;
elf_elfheader (obfd)->e_flags = in_flags;
if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
&& bfd_get_arch_info (obfd)->the_default)
return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
return TRUE;
}
if (! bfd_arm_merge_machines (ibfd, obfd))
return FALSE;
if (in_flags == out_flags)
return TRUE;
if (!(ibfd->flags & DYNAMIC))
{
bfd_boolean null_input_bfd = TRUE;
bfd_boolean only_data_sections = TRUE;
for (sec = ibfd->sections; sec != NULL; sec = sec->next)
{
if (strcmp (sec->name, ".glue_7")
&& strcmp (sec->name, ".glue_7t"))
{
if ((bfd_get_section_flags (ibfd, sec)
& (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS))
== (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS))
only_data_sections = FALSE;
null_input_bfd = FALSE;
break;
}
}
if (null_input_bfd || only_data_sections)
return TRUE;
}
if (!elf32_arm_versions_compatible (EF_ARM_EABI_VERSION (in_flags),
EF_ARM_EABI_VERSION (out_flags)))
{
_bfd_error_handler
(_("ERROR: Source object %B has EABI version %d, but target %B has EABI version %d"),
ibfd, obfd,
(in_flags & EF_ARM_EABIMASK) >> 24,
(out_flags & EF_ARM_EABIMASK) >> 24);
return FALSE;
}
if (get_elf_backend_data (obfd) != &elf32_arm_vxworks_bed
&& get_elf_backend_data (ibfd) != &elf32_arm_vxworks_bed
&& EF_ARM_EABI_VERSION (in_flags) == EF_ARM_EABI_UNKNOWN)
{
if ((in_flags & EF_ARM_APCS_26) != (out_flags & EF_ARM_APCS_26))
{
_bfd_error_handler
(_("ERROR: %B is compiled for APCS-%d, whereas target %B uses APCS-%d"),
ibfd, obfd,
in_flags & EF_ARM_APCS_26 ? 26 : 32,
out_flags & EF_ARM_APCS_26 ? 26 : 32);
flags_compatible = FALSE;
}
if ((in_flags & EF_ARM_APCS_FLOAT) != (out_flags & EF_ARM_APCS_FLOAT))
{
if (in_flags & EF_ARM_APCS_FLOAT)
_bfd_error_handler
(_("ERROR: %B passes floats in float registers, whereas %B passes them in integer registers"),
ibfd, obfd);
else
_bfd_error_handler
(_("ERROR: %B passes floats in integer registers, whereas %B passes them in float registers"),
ibfd, obfd);
flags_compatible = FALSE;
}
if ((in_flags & EF_ARM_VFP_FLOAT) != (out_flags & EF_ARM_VFP_FLOAT))
{
if (in_flags & EF_ARM_VFP_FLOAT)
_bfd_error_handler
(_("ERROR: %B uses VFP instructions, whereas %B does not"),
ibfd, obfd);
else
_bfd_error_handler
(_("ERROR: %B uses FPA instructions, whereas %B does not"),
ibfd, obfd);
flags_compatible = FALSE;
}
if ((in_flags & EF_ARM_MAVERICK_FLOAT) != (out_flags & EF_ARM_MAVERICK_FLOAT))
{
if (in_flags & EF_ARM_MAVERICK_FLOAT)
_bfd_error_handler
(_("ERROR: %B uses Maverick instructions, whereas %B does not"),
ibfd, obfd);
else
_bfd_error_handler
(_("ERROR: %B does not use Maverick instructions, whereas %B does"),
ibfd, obfd);
flags_compatible = FALSE;
}
#ifdef EF_ARM_SOFT_FLOAT
if ((in_flags & EF_ARM_SOFT_FLOAT) != (out_flags & EF_ARM_SOFT_FLOAT))
{
if ((in_flags & EF_ARM_APCS_FLOAT) != 0
|| (in_flags & EF_ARM_VFP_FLOAT) == 0)
{
if (in_flags & EF_ARM_SOFT_FLOAT)
_bfd_error_handler
(_("ERROR: %B uses software FP, whereas %B uses hardware FP"),
ibfd, obfd);
else
_bfd_error_handler
(_("ERROR: %B uses hardware FP, whereas %B uses software FP"),
ibfd, obfd);
flags_compatible = FALSE;
}
}
#endif
if ((in_flags & EF_ARM_INTERWORK) != (out_flags & EF_ARM_INTERWORK))
{
if (in_flags & EF_ARM_INTERWORK)
{
_bfd_error_handler
(_("Warning: %B supports interworking, whereas %B does not"),
ibfd, obfd);
}
else
{
_bfd_error_handler
(_("Warning: %B does not support interworking, whereas %B does"),
ibfd, obfd);
}
}
}
return flags_compatible;
}
static bfd_boolean
elf32_arm_print_private_bfd_data (bfd *abfd, void * ptr)
{
FILE * file = (FILE *) ptr;
unsigned long flags;
BFD_ASSERT (abfd != NULL && ptr != NULL);
_bfd_elf_print_private_bfd_data (abfd, ptr);
flags = elf_elfheader (abfd)->e_flags;
fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
switch (EF_ARM_EABI_VERSION (flags))
{
case EF_ARM_EABI_UNKNOWN:
if (flags & EF_ARM_INTERWORK)
fprintf (file, _(" [interworking enabled]"));
if (flags & EF_ARM_APCS_26)
fprintf (file, " [APCS-26]");
else
fprintf (file, " [APCS-32]");
if (flags & EF_ARM_VFP_FLOAT)
fprintf (file, _(" [VFP float format]"));
else if (flags & EF_ARM_MAVERICK_FLOAT)
fprintf (file, _(" [Maverick float format]"));
else
fprintf (file, _(" [FPA float format]"));
if (flags & EF_ARM_APCS_FLOAT)
fprintf (file, _(" [floats passed in float registers]"));
if (flags & EF_ARM_PIC)
fprintf (file, _(" [position independent]"));
if (flags & EF_ARM_NEW_ABI)
fprintf (file, _(" [new ABI]"));
if (flags & EF_ARM_OLD_ABI)
fprintf (file, _(" [old ABI]"));
if (flags & EF_ARM_SOFT_FLOAT)
fprintf (file, _(" [software FP]"));
flags &= ~(EF_ARM_INTERWORK | EF_ARM_APCS_26 | EF_ARM_APCS_FLOAT
| EF_ARM_PIC | EF_ARM_NEW_ABI | EF_ARM_OLD_ABI
| EF_ARM_SOFT_FLOAT | EF_ARM_VFP_FLOAT
| EF_ARM_MAVERICK_FLOAT);
break;
case EF_ARM_EABI_VER1:
fprintf (file, _(" [Version1 EABI]"));
if (flags & EF_ARM_SYMSARESORTED)
fprintf (file, _(" [sorted symbol table]"));
else
fprintf (file, _(" [unsorted symbol table]"));
flags &= ~ EF_ARM_SYMSARESORTED;
break;
case EF_ARM_EABI_VER2:
fprintf (file, _(" [Version2 EABI]"));
if (flags & EF_ARM_SYMSARESORTED)
fprintf (file, _(" [sorted symbol table]"));
else
fprintf (file, _(" [unsorted symbol table]"));
if (flags & EF_ARM_DYNSYMSUSESEGIDX)
fprintf (file, _(" [dynamic symbols use segment index]"));
if (flags & EF_ARM_MAPSYMSFIRST)
fprintf (file, _(" [mapping symbols precede others]"));
flags &= ~(EF_ARM_SYMSARESORTED | EF_ARM_DYNSYMSUSESEGIDX
| EF_ARM_MAPSYMSFIRST);
break;
case EF_ARM_EABI_VER3:
fprintf (file, _(" [Version3 EABI]"));
break;
case EF_ARM_EABI_VER4:
fprintf (file, _(" [Version4 EABI]"));
goto eabi;
case EF_ARM_EABI_VER5:
fprintf (file, _(" [Version5 EABI]"));
eabi:
if (flags & EF_ARM_BE8)
fprintf (file, _(" [BE8]"));
if (flags & EF_ARM_LE8)
fprintf (file, _(" [LE8]"));
flags &= ~(EF_ARM_LE8 | EF_ARM_BE8);
break;
default:
fprintf (file, _(" <EABI version unrecognised>"));
break;
}
flags &= ~ EF_ARM_EABIMASK;
if (flags & EF_ARM_RELEXEC)
fprintf (file, _(" [relocatable executable]"));
if (flags & EF_ARM_HASENTRY)
fprintf (file, _(" [has entry point]"));
flags &= ~ (EF_ARM_RELEXEC | EF_ARM_HASENTRY);
if (flags)
fprintf (file, _("<Unrecognised flag bits set>"));
fputc ('\n', file);
return TRUE;
}
static int
elf32_arm_get_symbol_type (Elf_Internal_Sym * elf_sym, int type)
{
switch (ELF_ST_TYPE (elf_sym->st_info))
{
case STT_ARM_TFUNC:
return ELF_ST_TYPE (elf_sym->st_info);
case STT_ARM_16BIT:
if (type != STT_OBJECT && type != STT_TLS)
return ELF_ST_TYPE (elf_sym->st_info);
break;
default:
break;
}
return type;
}
static asection *
elf32_arm_gc_mark_hook (asection *sec,
struct bfd_link_info *info,
Elf_Internal_Rela *rel,
struct elf_link_hash_entry *h,
Elf_Internal_Sym *sym)
{
if (h != NULL)
switch (ELF32_R_TYPE (rel->r_info))
{
case R_ARM_GNU_VTINHERIT:
case R_ARM_GNU_VTENTRY:
return NULL;
}
return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
}
static bfd_boolean
elf32_arm_gc_sweep_hook (bfd * abfd,
struct bfd_link_info * info,
asection * sec,
const Elf_Internal_Rela * relocs)
{
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
bfd_signed_vma *local_got_refcounts;
const Elf_Internal_Rela *rel, *relend;
struct elf32_arm_link_hash_table * globals;
globals = elf32_arm_hash_table (info);
elf_section_data (sec)->local_dynrel = NULL;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
local_got_refcounts = elf_local_got_refcounts (abfd);
relend = relocs + sec->reloc_count;
for (rel = relocs; rel < relend; rel++)
{
unsigned long r_symndx;
struct elf_link_hash_entry *h = NULL;
int r_type;
r_symndx = ELF32_R_SYM (rel->r_info);
if (r_symndx >= symtab_hdr->sh_info)
{
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
while (h->root.type == bfd_link_hash_indirect
|| h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;
}
r_type = ELF32_R_TYPE (rel->r_info);
r_type = arm_real_reloc_type (globals, r_type);
switch (r_type)
{
case R_ARM_GOT32:
case R_ARM_GOT_PREL:
case R_ARM_TLS_GD32:
case R_ARM_TLS_IE32:
if (h != NULL)
{
if (h->got.refcount > 0)
h->got.refcount -= 1;
}
else if (local_got_refcounts != NULL)
{
if (local_got_refcounts[r_symndx] > 0)
local_got_refcounts[r_symndx] -= 1;
}
break;
case R_ARM_TLS_LDM32:
elf32_arm_hash_table (info)->tls_ldm_got.refcount -= 1;
break;
case R_ARM_ABS32:
case R_ARM_ABS32_NOI:
case R_ARM_REL32:
case R_ARM_REL32_NOI:
case R_ARM_PC24:
case R_ARM_PLT32:
case R_ARM_CALL:
case R_ARM_JUMP24:
case R_ARM_PREL31:
case R_ARM_THM_CALL:
case R_ARM_MOVW_ABS_NC:
case R_ARM_MOVT_ABS:
case R_ARM_MOVW_PREL_NC:
case R_ARM_MOVT_PREL:
case R_ARM_THM_MOVW_ABS_NC:
case R_ARM_THM_MOVT_ABS:
case R_ARM_THM_MOVW_PREL_NC:
case R_ARM_THM_MOVT_PREL:
if (h != NULL)
{
struct elf32_arm_link_hash_entry *eh;
struct elf32_arm_relocs_copied **pp;
struct elf32_arm_relocs_copied *p;
eh = (struct elf32_arm_link_hash_entry *) h;
if (h->plt.refcount > 0)
{
h->plt.refcount -= 1;
if (ELF32_R_TYPE (rel->r_info) == R_ARM_THM_CALL)
eh->plt_thumb_refcount--;
}
if (r_type == R_ARM_ABS32
|| r_type == R_ARM_REL32
|| r_type == R_ARM_ABS32_NOI
|| r_type == R_ARM_REL32_NOI)
{
for (pp = &eh->relocs_copied; (p = *pp) != NULL;
pp = &p->next)
if (p->section == sec)
{
p->count -= 1;
if (ELF32_R_TYPE (rel->r_info) == R_ARM_REL32
|| ELF32_R_TYPE (rel->r_info) == R_ARM_REL32_NOI)
p->pc_count -= 1;
if (p->count == 0)
*pp = p->next;
break;
}
}
}
break;
default:
break;
}
}
return TRUE;
}
static bfd_boolean
elf32_arm_check_relocs (bfd *abfd, struct bfd_link_info *info,
asection *sec, const Elf_Internal_Rela *relocs)
{
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
struct elf_link_hash_entry **sym_hashes_end;
const Elf_Internal_Rela *rel;
const Elf_Internal_Rela *rel_end;
bfd *dynobj;
asection *sreloc;
bfd_vma *local_got_offsets;
struct elf32_arm_link_hash_table *htab;
if (info->relocatable)
return TRUE;
htab = elf32_arm_hash_table (info);
sreloc = NULL;
if (htab->root.is_relocatable_executable
&& ! htab->root.dynamic_sections_created)
{
if (! _bfd_elf_link_create_dynamic_sections (abfd, info))
return FALSE;
}
dynobj = elf_hash_table (info)->dynobj;
local_got_offsets = elf_local_got_offsets (abfd);
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
sym_hashes_end = sym_hashes
+ symtab_hdr->sh_size / sizeof (Elf32_External_Sym);
if (!elf_bad_symtab (abfd))
sym_hashes_end -= symtab_hdr->sh_info;
rel_end = relocs + sec->reloc_count;
for (rel = relocs; rel < rel_end; rel++)
{
struct elf_link_hash_entry *h;
struct elf32_arm_link_hash_entry *eh;
unsigned long r_symndx;
int r_type;
r_symndx = ELF32_R_SYM (rel->r_info);
r_type = ELF32_R_TYPE (rel->r_info);
r_type = arm_real_reloc_type (htab, r_type);
if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
{
(*_bfd_error_handler) (_("%B: bad symbol index: %d"), abfd,
r_symndx);
return FALSE;
}
if (r_symndx < symtab_hdr->sh_info)
h = NULL;
else
{
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
while (h->root.type == bfd_link_hash_indirect
|| h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;
}
eh = (struct elf32_arm_link_hash_entry *) h;
switch (r_type)
{
case R_ARM_GOT32:
case R_ARM_GOT_PREL:
case R_ARM_TLS_GD32:
case R_ARM_TLS_IE32:
{
int tls_type, old_tls_type;
switch (r_type)
{
case R_ARM_TLS_GD32: tls_type = GOT_TLS_GD; break;
case R_ARM_TLS_IE32: tls_type = GOT_TLS_IE; break;
default: tls_type = GOT_NORMAL; break;
}
if (h != NULL)
{
h->got.refcount++;
old_tls_type = elf32_arm_hash_entry (h)->tls_type;
}
else
{
bfd_signed_vma *local_got_refcounts;
local_got_refcounts = elf_local_got_refcounts (abfd);
if (local_got_refcounts == NULL)
{
bfd_size_type size;
size = symtab_hdr->sh_info;
size *= (sizeof (bfd_signed_vma) + sizeof(char));
local_got_refcounts = bfd_zalloc (abfd, size);
if (local_got_refcounts == NULL)
return FALSE;
elf_local_got_refcounts (abfd) = local_got_refcounts;
elf32_arm_local_got_tls_type (abfd)
= (char *) (local_got_refcounts + symtab_hdr->sh_info);
}
local_got_refcounts[r_symndx] += 1;
old_tls_type = elf32_arm_local_got_tls_type (abfd) [r_symndx];
}
if (old_tls_type != GOT_UNKNOWN && old_tls_type != GOT_NORMAL
&& tls_type != GOT_NORMAL)
tls_type |= old_tls_type;
if (old_tls_type != tls_type)
{
if (h != NULL)
elf32_arm_hash_entry (h)->tls_type = tls_type;
else
elf32_arm_local_got_tls_type (abfd) [r_symndx] = tls_type;
}
}
case R_ARM_TLS_LDM32:
if (r_type == R_ARM_TLS_LDM32)
htab->tls_ldm_got.refcount++;
case R_ARM_GOTOFF32:
case R_ARM_GOTPC:
if (htab->sgot == NULL)
{
if (htab->root.dynobj == NULL)
htab->root.dynobj = abfd;
if (!create_got_section (htab->root.dynobj, info))
return FALSE;
}
break;
case R_ARM_ABS12:
if (!htab->vxworks_p)
break;
case R_ARM_ABS32:
case R_ARM_ABS32_NOI:
case R_ARM_REL32:
case R_ARM_REL32_NOI:
case R_ARM_PC24:
case R_ARM_PLT32:
case R_ARM_CALL:
case R_ARM_JUMP24:
case R_ARM_PREL31:
case R_ARM_THM_CALL:
case R_ARM_MOVW_ABS_NC:
case R_ARM_MOVT_ABS:
case R_ARM_MOVW_PREL_NC:
case R_ARM_MOVT_PREL:
case R_ARM_THM_MOVW_ABS_NC:
case R_ARM_THM_MOVT_ABS:
case R_ARM_THM_MOVW_PREL_NC:
case R_ARM_THM_MOVT_PREL:
if (h != NULL)
{
if (!info->shared)
h->non_got_ref = 1;
if (r_type != R_ARM_ABS32
&& r_type != R_ARM_REL32
&& r_type != R_ARM_ABS32_NOI
&& r_type != R_ARM_REL32_NOI)
h->needs_plt = 1;
h->plt.refcount += 1;
if (r_type == R_ARM_THM_CALL)
eh->plt_thumb_refcount += 1;
}
if ((info->shared || htab->root.is_relocatable_executable)
&& (sec->flags & SEC_ALLOC) != 0
&& ((r_type == R_ARM_ABS32 || r_type == R_ARM_ABS32_NOI)
|| (h != NULL && ! h->needs_plt
&& (! info->symbolic || ! h->def_regular))))
{
struct elf32_arm_relocs_copied *p, **head;
if (sreloc == NULL)
{
const char * name;
name = (bfd_elf_string_from_elf_section
(abfd,
elf_elfheader (abfd)->e_shstrndx,
elf_section_data (sec)->rel_hdr.sh_name));
if (name == NULL)
return FALSE;
BFD_ASSERT (reloc_section_p (htab, name, sec));
sreloc = bfd_get_section_by_name (dynobj, name);
if (sreloc == NULL)
{
flagword flags;
flags = (SEC_HAS_CONTENTS | SEC_READONLY
| SEC_IN_MEMORY | SEC_LINKER_CREATED);
if ((sec->flags & SEC_ALLOC) != 0
&& !htab->symbian_p)
flags |= SEC_ALLOC | SEC_LOAD;
sreloc = bfd_make_section_with_flags (dynobj,
name,
flags);
if (sreloc == NULL
|| ! bfd_set_section_alignment (dynobj, sreloc, 2))
return FALSE;
}
elf_section_data (sec)->sreloc = sreloc;
}
if (h != NULL)
{
head = &((struct elf32_arm_link_hash_entry *) h)->relocs_copied;
}
else
{
asection *s;
void *vpp;
s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
sec, r_symndx);
if (s == NULL)
return FALSE;
vpp = &elf_section_data (s)->local_dynrel;
head = (struct elf32_arm_relocs_copied **) vpp;
}
p = *head;
if (p == NULL || p->section != sec)
{
bfd_size_type amt = sizeof *p;
p = bfd_alloc (htab->root.dynobj, amt);
if (p == NULL)
return FALSE;
p->next = *head;
*head = p;
p->section = sec;
p->count = 0;
p->pc_count = 0;
}
if (r_type == R_ARM_REL32 || r_type == R_ARM_REL32_NOI)
p->pc_count += 1;
p->count += 1;
}
break;
case R_ARM_GNU_VTINHERIT:
if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
return FALSE;
break;
case R_ARM_GNU_VTENTRY:
if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
return FALSE;
break;
}
}
return TRUE;
}
static bfd_boolean
elf32_arm_is_target_special_symbol (bfd * abfd ATTRIBUTE_UNUSED, asymbol * sym)
{
return bfd_is_arm_special_symbol_name (sym->name,
BFD_ARM_SPECIAL_SYM_TYPE_ANY);
}
static bfd_boolean
arm_elf_find_function (bfd * abfd ATTRIBUTE_UNUSED,
asection * section,
asymbol ** symbols,
bfd_vma offset,
const char ** filename_ptr,
const char ** functionname_ptr)
{
const char * filename = NULL;
asymbol * func = NULL;
bfd_vma low_func = 0;
asymbol ** p;
for (p = symbols; *p != NULL; p++)
{
elf_symbol_type *q;
q = (elf_symbol_type *) *p;
switch (ELF_ST_TYPE (q->internal_elf_sym.st_info))
{
default:
break;
case STT_FILE:
filename = bfd_asymbol_name (&q->symbol);
break;
case STT_FUNC:
case STT_ARM_TFUNC:
case STT_NOTYPE:
if ((q->symbol.flags & BSF_LOCAL)
&& bfd_is_arm_special_symbol_name (q->symbol.name,
BFD_ARM_SPECIAL_SYM_TYPE_ANY))
continue;
if (bfd_get_section (&q->symbol) == section
&& q->symbol.value >= low_func
&& q->symbol.value <= offset)
{
func = (asymbol *) q;
low_func = q->symbol.value;
}
break;
}
}
if (func == NULL)
return FALSE;
if (filename_ptr)
*filename_ptr = filename;
if (functionname_ptr)
*functionname_ptr = bfd_asymbol_name (func);
return TRUE;
}
static bfd_boolean
elf32_arm_find_nearest_line (bfd * abfd,
asection * section,
asymbol ** symbols,
bfd_vma offset,
const char ** filename_ptr,
const char ** functionname_ptr,
unsigned int * line_ptr)
{
bfd_boolean found = FALSE;
if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
filename_ptr, functionname_ptr,
line_ptr, 0,
& elf_tdata (abfd)->dwarf2_find_line_info))
{
if (!*functionname_ptr)
arm_elf_find_function (abfd, section, symbols, offset,
*filename_ptr ? NULL : filename_ptr,
functionname_ptr);
return TRUE;
}
if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset,
& found, filename_ptr,
functionname_ptr, line_ptr,
& elf_tdata (abfd)->line_info))
return FALSE;
if (found && (*functionname_ptr || *line_ptr))
return TRUE;
if (symbols == NULL)
return FALSE;
if (! arm_elf_find_function (abfd, section, symbols, offset,
filename_ptr, functionname_ptr))
return FALSE;
*line_ptr = 0;
return TRUE;
}
static bfd_boolean
elf32_arm_find_inliner_info (bfd * abfd,
const char ** filename_ptr,
const char ** functionname_ptr,
unsigned int * line_ptr)
{
bfd_boolean found;
found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr,
functionname_ptr, line_ptr,
& elf_tdata (abfd)->dwarf2_find_line_info);
return found;
}
static bfd_boolean
elf32_arm_adjust_dynamic_symbol (struct bfd_link_info * info,
struct elf_link_hash_entry * h)
{
bfd * dynobj;
asection * s;
unsigned int power_of_two;
struct elf32_arm_link_hash_entry * eh;
struct elf32_arm_link_hash_table *globals;
globals = elf32_arm_hash_table (info);
dynobj = elf_hash_table (info)->dynobj;
BFD_ASSERT (dynobj != NULL
&& (h->needs_plt
|| h->u.weakdef != NULL
|| (h->def_dynamic
&& h->ref_regular
&& !h->def_regular)));
eh = (struct elf32_arm_link_hash_entry *) h;
if (h->type == STT_FUNC || h->type == STT_ARM_TFUNC
|| h->needs_plt)
{
if (h->plt.refcount <= 0
|| SYMBOL_CALLS_LOCAL (info, h)
|| (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
&& h->root.type == bfd_link_hash_undefweak))
{
h->plt.offset = (bfd_vma) -1;
eh->plt_thumb_refcount = 0;
h->needs_plt = 0;
}
return TRUE;
}
else
{
h->plt.offset = (bfd_vma) -1;
eh->plt_thumb_refcount = 0;
}
if (h->u.weakdef != NULL)
{
BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
|| h->u.weakdef->root.type == bfd_link_hash_defweak);
h->root.u.def.section = h->u.weakdef->root.u.def.section;
h->root.u.def.value = h->u.weakdef->root.u.def.value;
return TRUE;
}
if (!h->non_got_ref)
return TRUE;
if (info->shared || globals->root.is_relocatable_executable)
return TRUE;
if (h->size == 0)
{
(*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
h->root.root.string);
return TRUE;
}
s = bfd_get_section_by_name (dynobj, ".dynbss");
BFD_ASSERT (s != NULL);
if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
{
asection *srel;
srel = bfd_get_section_by_name (dynobj, RELOC_SECTION (globals, ".bss"));
BFD_ASSERT (srel != NULL);
srel->size += RELOC_SIZE (globals);
h->needs_copy = 1;
}
power_of_two = bfd_log2 (h->size);
if (power_of_two > 3)
power_of_two = 3;
s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
if (power_of_two > bfd_get_section_alignment (dynobj, s))
{
if (! bfd_set_section_alignment (dynobj, s, power_of_two))
return FALSE;
}
h->root.u.def.section = s;
h->root.u.def.value = s->size;
s->size += h->size;
return TRUE;
}
static bfd_boolean
allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
{
struct bfd_link_info *info;
struct elf32_arm_link_hash_table *htab;
struct elf32_arm_link_hash_entry *eh;
struct elf32_arm_relocs_copied *p;
eh = (struct elf32_arm_link_hash_entry *) h;
if (h->root.type == bfd_link_hash_indirect)
return TRUE;
if (h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;
info = (struct bfd_link_info *) inf;
htab = elf32_arm_hash_table (info);
if (htab->root.dynamic_sections_created
&& h->plt.refcount > 0)
{
if (h->dynindx == -1
&& !h->forced_local)
{
if (! bfd_elf_link_record_dynamic_symbol (info, h))
return FALSE;
}
if (info->shared
|| WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
{
asection *s = htab->splt;
if (s->size == 0)
s->size += htab->plt_header_size;
h->plt.offset = s->size;
if (!htab->use_blx && eh->plt_thumb_refcount > 0)
{
h->plt.offset += PLT_THUMB_STUB_SIZE;
s->size += PLT_THUMB_STUB_SIZE;
}
if (! info->shared
&& !h->def_regular)
{
h->root.u.def.section = s;
h->root.u.def.value = h->plt.offset;
if (ELF_ST_TYPE (h->type) == STT_ARM_TFUNC)
h->type = ELF_ST_INFO (ELF_ST_BIND (h->type), STT_FUNC);
}
s->size += htab->plt_entry_size;
if (!htab->symbian_p)
{
eh->plt_got_offset = htab->sgotplt->size;
htab->sgotplt->size += 4;
}
htab->srelplt->size += RELOC_SIZE (htab);
if (htab->vxworks_p && !info->shared)
{
if (h->plt.offset == htab->plt_header_size)
htab->srelplt2->size += RELOC_SIZE (htab);
htab->srelplt2->size += RELOC_SIZE (htab) * 2;
}
}
else
{
h->plt.offset = (bfd_vma) -1;
h->needs_plt = 0;
}
}
else
{
h->plt.offset = (bfd_vma) -1;
h->needs_plt = 0;
}
if (h->got.refcount > 0)
{
asection *s;
bfd_boolean dyn;
int tls_type = elf32_arm_hash_entry (h)->tls_type;
int indx;
if (h->dynindx == -1
&& !h->forced_local)
{
if (! bfd_elf_link_record_dynamic_symbol (info, h))
return FALSE;
}
if (!htab->symbian_p)
{
s = htab->sgot;
h->got.offset = s->size;
if (tls_type == GOT_UNKNOWN)
abort ();
if (tls_type == GOT_NORMAL)
s->size += 4;
else
{
if (tls_type & GOT_TLS_GD)
s->size += 8;
if (tls_type & GOT_TLS_IE)
s->size += 4;
}
dyn = htab->root.dynamic_sections_created;
indx = 0;
if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
&& (!info->shared
|| !SYMBOL_REFERENCES_LOCAL (info, h)))
indx = h->dynindx;
if (tls_type != GOT_NORMAL
&& (info->shared || indx != 0)
&& (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|| h->root.type != bfd_link_hash_undefweak))
{
if (tls_type & GOT_TLS_IE)
htab->srelgot->size += RELOC_SIZE (htab);
if (tls_type & GOT_TLS_GD)
htab->srelgot->size += RELOC_SIZE (htab);
if ((tls_type & GOT_TLS_GD) && indx != 0)
htab->srelgot->size += RELOC_SIZE (htab);
}
else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|| h->root.type != bfd_link_hash_undefweak)
&& (info->shared
|| WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
htab->srelgot->size += RELOC_SIZE (htab);
}
}
else
h->got.offset = (bfd_vma) -1;
if (!htab->use_blx && h->dynindx != -1
&& h->def_regular
&& ELF_ST_TYPE (h->type) == STT_ARM_TFUNC
&& ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
{
struct elf_link_hash_entry * th;
struct bfd_link_hash_entry * bh;
struct elf_link_hash_entry * myh;
char name[1024];
asection *s;
bh = NULL;
s = h->root.u.def.section;
sprintf(name, "__real_%s", h->root.root.string);
_bfd_generic_link_add_one_symbol (info, s->owner,
name, BSF_GLOBAL, s,
h->root.u.def.value,
NULL, TRUE, FALSE, &bh);
myh = (struct elf_link_hash_entry *) bh;
myh->type = ELF_ST_INFO (STB_LOCAL, STT_ARM_TFUNC);
myh->forced_local = 1;
eh->export_glue = myh;
th = record_arm_to_thumb_glue (info, h);
h->type = ELF_ST_INFO (ELF_ST_BIND (h->type), STT_FUNC);
h->root.u.def.section = th->root.u.def.section;
h->root.u.def.value = th->root.u.def.value & ~1;
}
if (eh->relocs_copied == NULL)
return TRUE;
if (info->shared || htab->root.is_relocatable_executable)
{
if (SYMBOL_CALLS_LOCAL (info, h))
{
struct elf32_arm_relocs_copied **pp;
for (pp = &eh->relocs_copied; (p = *pp) != NULL; )
{
p->count -= p->pc_count;
p->pc_count = 0;
if (p->count == 0)
*pp = p->next;
else
pp = &p->next;
}
}
if (eh->relocs_copied != NULL
&& h->root.type == bfd_link_hash_undefweak)
{
if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
eh->relocs_copied = NULL;
else if (h->dynindx == -1
&& !h->forced_local)
{
if (! bfd_elf_link_record_dynamic_symbol (info, h))
return FALSE;
}
}
else if (htab->root.is_relocatable_executable && h->dynindx == -1
&& h->root.type == bfd_link_hash_new)
{
if (! bfd_elf_link_record_dynamic_symbol (info, h))
return FALSE;
}
}
else
{
if (!h->non_got_ref
&& ((h->def_dynamic
&& !h->def_regular)
|| (htab->root.dynamic_sections_created
&& (h->root.type == bfd_link_hash_undefweak
|| h->root.type == bfd_link_hash_undefined))))
{
if (h->dynindx == -1
&& !h->forced_local)
{
if (! bfd_elf_link_record_dynamic_symbol (info, h))
return FALSE;
}
if (h->dynindx != -1)
goto keep;
}
eh->relocs_copied = NULL;
keep: ;
}
for (p = eh->relocs_copied; p != NULL; p = p->next)
{
asection *sreloc = elf_section_data (p->section)->sreloc;
sreloc->size += p->count * RELOC_SIZE (htab);
}
return TRUE;
}
static bfd_boolean
elf32_arm_readonly_dynrelocs (struct elf_link_hash_entry *h, PTR inf)
{
struct elf32_arm_link_hash_entry *eh;
struct elf32_arm_relocs_copied *p;
if (h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;
eh = (struct elf32_arm_link_hash_entry *) h;
for (p = eh->relocs_copied; p != NULL; p = p->next)
{
asection *s = p->section;
if (s != NULL && (s->flags & SEC_READONLY) != 0)
{
struct bfd_link_info *info = (struct bfd_link_info *) inf;
info->flags |= DF_TEXTREL;
return FALSE;
}
}
return TRUE;
}
void
bfd_elf32_arm_set_byteswap_code (struct bfd_link_info *info,
int byteswap_code)
{
struct elf32_arm_link_hash_table *globals;
globals = elf32_arm_hash_table (info);
globals->byteswap_code = byteswap_code;
}
static bfd_boolean
elf32_arm_size_dynamic_sections (bfd * output_bfd ATTRIBUTE_UNUSED,
struct bfd_link_info * info)
{
bfd * dynobj;
asection * s;
bfd_boolean plt;
bfd_boolean relocs;
bfd *ibfd;
struct elf32_arm_link_hash_table *htab;
htab = elf32_arm_hash_table (info);
dynobj = elf_hash_table (info)->dynobj;
BFD_ASSERT (dynobj != NULL);
check_use_blx (htab);
if (elf_hash_table (info)->dynamic_sections_created)
{
if (info->executable)
{
s = bfd_get_section_by_name (dynobj, ".interp");
BFD_ASSERT (s != NULL);
s->size = sizeof ELF_DYNAMIC_INTERPRETER;
s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
}
}
for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
{
bfd_signed_vma *local_got;
bfd_signed_vma *end_local_got;
char *local_tls_type;
bfd_size_type locsymcount;
Elf_Internal_Shdr *symtab_hdr;
asection *srel;
if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
continue;
for (s = ibfd->sections; s != NULL; s = s->next)
{
struct elf32_arm_relocs_copied *p;
for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
{
if (!bfd_is_abs_section (p->section)
&& bfd_is_abs_section (p->section->output_section))
{
}
else if (p->count != 0)
{
srel = elf_section_data (p->section)->sreloc;
srel->size += p->count * RELOC_SIZE (htab);
if ((p->section->output_section->flags & SEC_READONLY) != 0)
info->flags |= DF_TEXTREL;
}
}
}
local_got = elf_local_got_refcounts (ibfd);
if (!local_got)
continue;
symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
locsymcount = symtab_hdr->sh_info;
end_local_got = local_got + locsymcount;
local_tls_type = elf32_arm_local_got_tls_type (ibfd);
s = htab->sgot;
srel = htab->srelgot;
for (; local_got < end_local_got; ++local_got, ++local_tls_type)
{
if (*local_got > 0)
{
*local_got = s->size;
if (*local_tls_type & GOT_TLS_GD)
s->size += 8;
if (*local_tls_type & GOT_TLS_IE)
s->size += 4;
if (*local_tls_type == GOT_NORMAL)
s->size += 4;
if (info->shared || *local_tls_type == GOT_TLS_GD)
srel->size += RELOC_SIZE (htab);
}
else
*local_got = (bfd_vma) -1;
}
}
if (htab->tls_ldm_got.refcount > 0)
{
htab->tls_ldm_got.offset = htab->sgot->size;
htab->sgot->size += 8;
if (info->shared)
htab->srelgot->size += RELOC_SIZE (htab);
}
else
htab->tls_ldm_got.offset = -1;
elf_link_hash_traverse (& htab->root, allocate_dynrelocs, info);
for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
{
bfd_elf32_arm_init_maps (ibfd);
if (!bfd_elf32_arm_process_before_allocation (ibfd, info)
|| !bfd_elf32_arm_vfp11_erratum_scan (ibfd, info))
_bfd_error_handler (_("Errors encountered processing file %s"),
ibfd->filename);
}
plt = FALSE;
relocs = FALSE;
for (s = dynobj->sections; s != NULL; s = s->next)
{
const char * name;
if ((s->flags & SEC_LINKER_CREATED) == 0)
continue;
name = bfd_get_section_name (dynobj, s);
if (strcmp (name, ".plt") == 0)
{
plt = s->size != 0;
}
else if (CONST_STRNEQ (name, ".rel"))
{
if (s->size != 0)
{
if (s != htab->srelplt && s != htab->srelplt2)
relocs = TRUE;
s->reloc_count = 0;
}
}
else if (! CONST_STRNEQ (name, ".got")
&& strcmp (name, ".dynbss") != 0)
{
continue;
}
if (s->size == 0)
{
s->flags |= SEC_EXCLUDE;
continue;
}
if ((s->flags & SEC_HAS_CONTENTS) == 0)
continue;
s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
if (s->contents == NULL)
return FALSE;
}
if (elf_hash_table (info)->dynamic_sections_created)
{
#define add_dynamic_entry(TAG, VAL) \
_bfd_elf_add_dynamic_entry (info, TAG, VAL)
if (info->executable)
{
if (!add_dynamic_entry (DT_DEBUG, 0))
return FALSE;
}
if (plt)
{
if ( !add_dynamic_entry (DT_PLTGOT, 0)
|| !add_dynamic_entry (DT_PLTRELSZ, 0)
|| !add_dynamic_entry (DT_PLTREL,
htab->use_rel ? DT_REL : DT_RELA)
|| !add_dynamic_entry (DT_JMPREL, 0))
return FALSE;
}
if (relocs)
{
if (htab->use_rel)
{
if (!add_dynamic_entry (DT_REL, 0)
|| !add_dynamic_entry (DT_RELSZ, 0)
|| !add_dynamic_entry (DT_RELENT, RELOC_SIZE (htab)))
return FALSE;
}
else
{
if (!add_dynamic_entry (DT_RELA, 0)
|| !add_dynamic_entry (DT_RELASZ, 0)
|| !add_dynamic_entry (DT_RELAENT, RELOC_SIZE (htab)))
return FALSE;
}
}
if ((info->flags & DF_TEXTREL) == 0)
elf_link_hash_traverse (&htab->root, elf32_arm_readonly_dynrelocs,
(PTR) info);
if ((info->flags & DF_TEXTREL) != 0)
{
if (!add_dynamic_entry (DT_TEXTREL, 0))
return FALSE;
}
}
#undef add_dynamic_entry
return TRUE;
}
static bfd_boolean
elf32_arm_finish_dynamic_symbol (bfd * output_bfd, struct bfd_link_info * info,
struct elf_link_hash_entry * h, Elf_Internal_Sym * sym)
{
bfd * dynobj;
struct elf32_arm_link_hash_table *htab;
struct elf32_arm_link_hash_entry *eh;
dynobj = elf_hash_table (info)->dynobj;
htab = elf32_arm_hash_table (info);
eh = (struct elf32_arm_link_hash_entry *) h;
if (h->plt.offset != (bfd_vma) -1)
{
asection * splt;
asection * srel;
bfd_byte *loc;
bfd_vma plt_index;
Elf_Internal_Rela rel;
BFD_ASSERT (h->dynindx != -1);
splt = bfd_get_section_by_name (dynobj, ".plt");
srel = bfd_get_section_by_name (dynobj, RELOC_SECTION (htab, ".plt"));
BFD_ASSERT (splt != NULL && srel != NULL);
if (htab->symbian_p)
{
put_arm_insn (htab, output_bfd,
elf32_arm_symbian_plt_entry[0],
splt->contents + h->plt.offset);
bfd_put_32 (output_bfd,
elf32_arm_symbian_plt_entry[1],
splt->contents + h->plt.offset + 4);
rel.r_offset = (splt->output_section->vma
+ splt->output_offset
+ h->plt.offset + 4);
rel.r_info = ELF32_R_INFO (h->dynindx, R_ARM_GLOB_DAT);
plt_index = ((h->plt.offset - htab->plt_header_size)
/ htab->plt_entry_size);
}
else
{
bfd_vma got_offset, got_address, plt_address;
bfd_vma got_displacement;
asection * sgot;
bfd_byte * ptr;
sgot = bfd_get_section_by_name (dynobj, ".got.plt");
BFD_ASSERT (sgot != NULL);
got_offset = eh->plt_got_offset;
plt_index = (got_offset - 12) / 4;
got_address = (sgot->output_section->vma
+ sgot->output_offset
+ got_offset);
plt_address = (splt->output_section->vma
+ splt->output_offset
+ h->plt.offset);
ptr = htab->splt->contents + h->plt.offset;
if (htab->vxworks_p && info->shared)
{
unsigned int i;
bfd_vma val;
for (i = 0; i != htab->plt_entry_size / 4; i++, ptr += 4)
{
val = elf32_arm_vxworks_shared_plt_entry[i];
if (i == 2)
val |= got_address - sgot->output_section->vma;
if (i == 5)
val |= plt_index * RELOC_SIZE (htab);
if (i == 2 || i == 5)
bfd_put_32 (output_bfd, val, ptr);
else
put_arm_insn (htab, output_bfd, val, ptr);
}
}
else if (htab->vxworks_p)
{
unsigned int i;
bfd_vma val;
for (i = 0; i != htab->plt_entry_size / 4; i++)
{
val = elf32_arm_vxworks_exec_plt_entry[i];
if (i == 2)
val |= got_address;
if (i == 4)
val |= 0xffffff & -((h->plt.offset + i * 4 + 8) >> 2);
if (i == 5)
val |= plt_index * RELOC_SIZE (htab);
if (i == 2 || i == 5)
bfd_put_32 (output_bfd, val, ptr);
else
put_arm_insn (htab, output_bfd, val, ptr);
}
loc = (htab->srelplt2->contents
+ (plt_index * 2 + 1) * RELOC_SIZE (htab));
rel.r_offset = plt_address + 8;
rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_ARM_ABS32);
rel.r_addend = got_offset;
SWAP_RELOC_OUT (htab) (output_bfd, &rel, loc);
loc += RELOC_SIZE (htab);
rel.r_offset = got_address;
rel.r_info = ELF32_R_INFO (htab->root.hplt->indx, R_ARM_ABS32);
rel.r_addend = 0;
SWAP_RELOC_OUT (htab) (output_bfd, &rel, loc);
}
else
{
got_displacement = got_address - (plt_address + 8);
BFD_ASSERT ((got_displacement & 0xf0000000) == 0);
if (!htab->use_blx && eh->plt_thumb_refcount > 0)
{
put_thumb_insn (htab, output_bfd,
elf32_arm_plt_thumb_stub[0], ptr - 4);
put_thumb_insn (htab, output_bfd,
elf32_arm_plt_thumb_stub[1], ptr - 2);
}
put_arm_insn (htab, output_bfd,
elf32_arm_plt_entry[0]
| ((got_displacement & 0x0ff00000) >> 20),
ptr + 0);
put_arm_insn (htab, output_bfd,
elf32_arm_plt_entry[1]
| ((got_displacement & 0x000ff000) >> 12),
ptr+ 4);
put_arm_insn (htab, output_bfd,
elf32_arm_plt_entry[2]
| (got_displacement & 0x00000fff),
ptr + 8);
#ifdef FOUR_WORD_PLT
bfd_put_32 (output_bfd, elf32_arm_plt_entry[3], ptr + 12);
#endif
}
bfd_put_32 (output_bfd,
(splt->output_section->vma
+ splt->output_offset),
sgot->contents + got_offset);
rel.r_addend = 0;
rel.r_offset = got_address;
rel.r_info = ELF32_R_INFO (h->dynindx, R_ARM_JUMP_SLOT);
}
loc = srel->contents + plt_index * RELOC_SIZE (htab);
SWAP_RELOC_OUT (htab) (output_bfd, &rel, loc);
if (!h->def_regular)
{
sym->st_shndx = SHN_UNDEF;
if (!h->ref_regular_nonweak)
sym->st_value = 0;
}
}
if (h->got.offset != (bfd_vma) -1
&& (elf32_arm_hash_entry (h)->tls_type & GOT_TLS_GD) == 0
&& (elf32_arm_hash_entry (h)->tls_type & GOT_TLS_IE) == 0)
{
asection * sgot;
asection * srel;
Elf_Internal_Rela rel;
bfd_byte *loc;
bfd_vma offset;
sgot = bfd_get_section_by_name (dynobj, ".got");
srel = bfd_get_section_by_name (dynobj, RELOC_SECTION (htab, ".got"));
BFD_ASSERT (sgot != NULL && srel != NULL);
offset = (h->got.offset & ~(bfd_vma) 1);
rel.r_addend = 0;
rel.r_offset = (sgot->output_section->vma
+ sgot->output_offset
+ offset);
if (info->shared
&& SYMBOL_REFERENCES_LOCAL (info, h))
{
BFD_ASSERT((h->got.offset & 1) != 0);
rel.r_info = ELF32_R_INFO (0, R_ARM_RELATIVE);
if (!htab->use_rel)
{
rel.r_addend = bfd_get_32 (output_bfd, sgot->contents + offset);
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + offset);
}
}
else
{
BFD_ASSERT((h->got.offset & 1) == 0);
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + offset);
rel.r_info = ELF32_R_INFO (h->dynindx, R_ARM_GLOB_DAT);
}
loc = srel->contents + srel->reloc_count++ * RELOC_SIZE (htab);
SWAP_RELOC_OUT (htab) (output_bfd, &rel, loc);
}
if (h->needs_copy)
{
asection * s;
Elf_Internal_Rela rel;
bfd_byte *loc;
BFD_ASSERT (h->dynindx != -1
&& (h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak));
s = bfd_get_section_by_name (h->root.u.def.section->owner,
RELOC_SECTION (htab, ".bss"));
BFD_ASSERT (s != NULL);
rel.r_addend = 0;
rel.r_offset = (h->root.u.def.value
+ h->root.u.def.section->output_section->vma
+ h->root.u.def.section->output_offset);
rel.r_info = ELF32_R_INFO (h->dynindx, R_ARM_COPY);
loc = s->contents + s->reloc_count++ * RELOC_SIZE (htab);
SWAP_RELOC_OUT (htab) (output_bfd, &rel, loc);
}
if (strcmp (h->root.root.string, "_DYNAMIC") == 0
|| (!htab->vxworks_p && h == htab->root.hgot))
sym->st_shndx = SHN_ABS;
return TRUE;
}
static bfd_boolean
elf32_arm_finish_dynamic_sections (bfd * output_bfd, struct bfd_link_info * info)
{
bfd * dynobj;
asection * sgot;
asection * sdyn;
dynobj = elf_hash_table (info)->dynobj;
sgot = bfd_get_section_by_name (dynobj, ".got.plt");
BFD_ASSERT (elf32_arm_hash_table (info)->symbian_p || sgot != NULL);
sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
if (elf_hash_table (info)->dynamic_sections_created)
{
asection *splt;
Elf32_External_Dyn *dyncon, *dynconend;
struct elf32_arm_link_hash_table *htab;
htab = elf32_arm_hash_table (info);
splt = bfd_get_section_by_name (dynobj, ".plt");
BFD_ASSERT (splt != NULL && sdyn != NULL);
dyncon = (Elf32_External_Dyn *) sdyn->contents;
dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
for (; dyncon < dynconend; dyncon++)
{
Elf_Internal_Dyn dyn;
const char * name;
asection * s;
bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
switch (dyn.d_tag)
{
unsigned int type;
default:
break;
case DT_HASH:
name = ".hash";
goto get_vma_if_bpabi;
case DT_STRTAB:
name = ".dynstr";
goto get_vma_if_bpabi;
case DT_SYMTAB:
name = ".dynsym";
goto get_vma_if_bpabi;
case DT_VERSYM:
name = ".gnu.version";
goto get_vma_if_bpabi;
case DT_VERDEF:
name = ".gnu.version_d";
goto get_vma_if_bpabi;
case DT_VERNEED:
name = ".gnu.version_r";
goto get_vma_if_bpabi;
case DT_PLTGOT:
name = ".got";
goto get_vma;
case DT_JMPREL:
name = RELOC_SECTION (htab, ".plt");
get_vma:
s = bfd_get_section_by_name (output_bfd, name);
BFD_ASSERT (s != NULL);
if (!htab->symbian_p)
dyn.d_un.d_ptr = s->vma;
else
dyn.d_un.d_ptr = s->filepos;
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
get_vma_if_bpabi:
if (htab->symbian_p)
goto get_vma;
break;
case DT_PLTRELSZ:
s = bfd_get_section_by_name (output_bfd,
RELOC_SECTION (htab, ".plt"));
BFD_ASSERT (s != NULL);
dyn.d_un.d_val = s->size;
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
case DT_RELSZ:
case DT_RELASZ:
if (!htab->symbian_p)
{
s = bfd_get_section_by_name (output_bfd,
RELOC_SECTION (htab, ".plt"));
if (s != NULL)
dyn.d_un.d_val -= s->size;
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
}
case DT_REL:
case DT_RELA:
if (htab->symbian_p)
{
unsigned int i;
type = ((dyn.d_tag == DT_REL || dyn.d_tag == DT_RELSZ)
? SHT_REL : SHT_RELA);
dyn.d_un.d_val = 0;
for (i = 1; i < elf_numsections (output_bfd); i++)
{
Elf_Internal_Shdr *hdr
= elf_elfsections (output_bfd)[i];
if (hdr->sh_type == type)
{
if (dyn.d_tag == DT_RELSZ
|| dyn.d_tag == DT_RELASZ)
dyn.d_un.d_val += hdr->sh_size;
else if ((ufile_ptr) hdr->sh_offset
<= dyn.d_un.d_val - 1)
dyn.d_un.d_val = hdr->sh_offset;
}
}
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
}
break;
case DT_INIT:
name = info->init_function;
goto get_sym;
case DT_FINI:
name = info->fini_function;
get_sym:
if (dyn.d_un.d_val != 0)
{
struct elf_link_hash_entry * eh;
eh = elf_link_hash_lookup (elf_hash_table (info), name,
FALSE, FALSE, TRUE);
if (eh != (struct elf_link_hash_entry *) NULL
&& ELF_ST_TYPE (eh->type) == STT_ARM_TFUNC)
{
dyn.d_un.d_val |= 1;
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
}
}
break;
}
}
if (splt->size > 0 && elf32_arm_hash_table (info)->plt_header_size)
{
const bfd_vma *plt0_entry;
bfd_vma got_address, plt_address, got_displacement;
got_address = sgot->output_section->vma + sgot->output_offset;
plt_address = splt->output_section->vma + splt->output_offset;
if (htab->vxworks_p)
{
Elf_Internal_Rela rel;
plt0_entry = elf32_arm_vxworks_exec_plt0_entry;
put_arm_insn (htab, output_bfd, plt0_entry[0],
splt->contents + 0);
put_arm_insn (htab, output_bfd, plt0_entry[1],
splt->contents + 4);
put_arm_insn (htab, output_bfd, plt0_entry[2],
splt->contents + 8);
bfd_put_32 (output_bfd, got_address, splt->contents + 12);
rel.r_offset = plt_address + 12;
rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_ARM_ABS32);
rel.r_addend = 0;
SWAP_RELOC_OUT (htab) (output_bfd, &rel,
htab->srelplt2->contents);
}
else
{
got_displacement = got_address - (plt_address + 16);
plt0_entry = elf32_arm_plt0_entry;
put_arm_insn (htab, output_bfd, plt0_entry[0],
splt->contents + 0);
put_arm_insn (htab, output_bfd, plt0_entry[1],
splt->contents + 4);
put_arm_insn (htab, output_bfd, plt0_entry[2],
splt->contents + 8);
put_arm_insn (htab, output_bfd, plt0_entry[3],
splt->contents + 12);
#ifdef FOUR_WORD_PLT
bfd_put_32 (output_bfd, got_displacement, splt->contents + 28);
#else
bfd_put_32 (output_bfd, got_displacement, splt->contents + 16);
#endif
}
}
if (splt->output_section->owner == output_bfd)
elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
if (htab->vxworks_p && !info->shared && htab->splt->size > 0)
{
int num_plts;
unsigned char *p;
num_plts = ((htab->splt->size - htab->plt_header_size)
/ htab->plt_entry_size);
p = htab->srelplt2->contents + RELOC_SIZE (htab);
for (; num_plts; num_plts--)
{
Elf_Internal_Rela rel;
SWAP_RELOC_IN (htab) (output_bfd, p, &rel);
rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_ARM_ABS32);
SWAP_RELOC_OUT (htab) (output_bfd, &rel, p);
p += RELOC_SIZE (htab);
SWAP_RELOC_IN (htab) (output_bfd, p, &rel);
rel.r_info = ELF32_R_INFO (htab->root.hplt->indx, R_ARM_ABS32);
SWAP_RELOC_OUT (htab) (output_bfd, &rel, p);
p += RELOC_SIZE (htab);
}
}
}
if (sgot)
{
if (sgot->size > 0)
{
if (sdyn == NULL)
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
else
bfd_put_32 (output_bfd,
sdyn->output_section->vma + sdyn->output_offset,
sgot->contents);
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
}
elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
}
return TRUE;
}
static void
elf32_arm_post_process_headers (bfd * abfd, struct bfd_link_info * link_info ATTRIBUTE_UNUSED)
{
Elf_Internal_Ehdr * i_ehdrp;
struct elf32_arm_link_hash_table *globals;
i_ehdrp = elf_elfheader (abfd);
if (EF_ARM_EABI_VERSION (i_ehdrp->e_flags) == EF_ARM_EABI_UNKNOWN)
i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_ARM;
else
i_ehdrp->e_ident[EI_OSABI] = 0;
i_ehdrp->e_ident[EI_ABIVERSION] = ARM_ELF_ABI_VERSION;
if (link_info)
{
globals = elf32_arm_hash_table (link_info);
if (globals->byteswap_code)
i_ehdrp->e_flags |= EF_ARM_BE8;
}
}
static enum elf_reloc_type_class
elf32_arm_reloc_type_class (const Elf_Internal_Rela *rela)
{
switch ((int) ELF32_R_TYPE (rela->r_info))
{
case R_ARM_RELATIVE:
return reloc_class_relative;
case R_ARM_JUMP_SLOT:
return reloc_class_plt;
case R_ARM_COPY:
return reloc_class_copy;
default:
return reloc_class_normal;
}
}
static bfd_boolean
elf32_arm_section_flags (flagword *flags, const Elf_Internal_Shdr *hdr)
{
if (hdr->sh_type == SHT_NOTE)
*flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_SAME_CONTENTS;
return TRUE;
}
static void
elf32_arm_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
{
bfd_arm_update_notes (abfd, ARM_NOTE_SECTION);
}
static bfd_boolean
is_arm_elf_unwind_section_name (bfd * abfd ATTRIBUTE_UNUSED, const char * name)
{
return (CONST_STRNEQ (name, ELF_STRING_ARM_unwind)
|| CONST_STRNEQ (name, ELF_STRING_ARM_unwind_once));
}
static bfd_boolean
elf32_arm_fake_sections (bfd * abfd, Elf_Internal_Shdr * hdr, asection * sec)
{
const char * name;
name = bfd_get_section_name (abfd, sec);
if (is_arm_elf_unwind_section_name (abfd, name))
{
hdr->sh_type = SHT_ARM_EXIDX;
hdr->sh_flags |= SHF_LINK_ORDER;
}
else if (strcmp(name, ".ARM.attributes") == 0)
{
hdr->sh_type = SHT_ARM_ATTRIBUTES;
}
return TRUE;
}
static void
elf32_arm_parse_attributes (bfd *abfd, Elf_Internal_Shdr * hdr)
{
bfd_byte *contents;
bfd_byte *p;
bfd_vma len;
contents = bfd_malloc (hdr->sh_size);
if (!contents)
return;
if (!bfd_get_section_contents (abfd, hdr->bfd_section, contents, 0,
hdr->sh_size))
{
free (contents);
return;
}
p = contents;
if (*(p++) == 'A')
{
len = hdr->sh_size - 1;
while (len > 0)
{
int namelen;
bfd_vma section_len;
section_len = bfd_get_32 (abfd, p);
p += 4;
if (section_len > len)
section_len = len;
len -= section_len;
namelen = strlen ((char *)p) + 1;
section_len -= namelen + 4;
if (strcmp((char *)p, "aeabi") != 0)
{
p += namelen + section_len;
}
else
{
p += namelen;
while (section_len > 0)
{
int tag;
unsigned int n;
unsigned int val;
bfd_vma subsection_len;
bfd_byte *end;
tag = read_unsigned_leb128 (abfd, p, &n);
p += n;
subsection_len = bfd_get_32 (abfd, p);
p += 4;
if (subsection_len > section_len)
subsection_len = section_len;
section_len -= subsection_len;
subsection_len -= n + 4;
end = p + subsection_len;
switch (tag)
{
case Tag_File:
while (p < end)
{
bfd_boolean is_string;
tag = read_unsigned_leb128 (abfd, p, &n);
p += n;
if (tag == 4 || tag == 5)
is_string = 1;
else if (tag < 32)
is_string = 0;
else
is_string = (tag & 1) != 0;
if (tag == Tag_compatibility)
{
val = read_unsigned_leb128 (abfd, p, &n);
p += n;
elf32_arm_add_eabi_attr_compat (abfd, val,
(char *)p);
p += strlen ((char *)p) + 1;
}
else if (is_string)
{
elf32_arm_add_eabi_attr_string (abfd, tag,
(char *)p);
p += strlen ((char *)p) + 1;
}
else
{
val = read_unsigned_leb128 (abfd, p, &n);
p += n;
elf32_arm_add_eabi_attr_int (abfd, tag, val);
}
}
break;
case Tag_Section:
case Tag_Symbol:
default:
p += subsection_len;
subsection_len = 0;
break;
}
}
}
}
}
free (contents);
}
static bfd_boolean
elf32_arm_section_from_shdr (bfd *abfd,
Elf_Internal_Shdr * hdr,
const char *name,
int shindex)
{
switch (hdr->sh_type)
{
case SHT_ARM_EXIDX:
case SHT_ARM_PREEMPTMAP:
case SHT_ARM_ATTRIBUTES:
break;
default:
return FALSE;
}
if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
return FALSE;
if (hdr->sh_type == SHT_ARM_ATTRIBUTES)
elf32_arm_parse_attributes(abfd, hdr);
return TRUE;
}
typedef struct section_list
{
asection * sec;
struct section_list * next;
struct section_list * prev;
}
section_list;
static section_list * sections_with_arm_elf_section_data = NULL;
static void
record_section_with_arm_elf_section_data (asection * sec)
{
struct section_list * entry;
entry = bfd_malloc (sizeof (* entry));
if (entry == NULL)
return;
entry->sec = sec;
entry->next = sections_with_arm_elf_section_data;
entry->prev = NULL;
if (entry->next != NULL)
entry->next->prev = entry;
sections_with_arm_elf_section_data = entry;
}
static struct section_list *
find_arm_elf_section_entry (asection * sec)
{
struct section_list * entry;
static struct section_list * last_entry = NULL;
entry = sections_with_arm_elf_section_data;
if (last_entry != NULL)
{
if (last_entry->sec == sec)
entry = last_entry;
else if (last_entry->next != NULL
&& last_entry->next->sec == sec)
entry = last_entry->next;
}
for (; entry; entry = entry->next)
if (entry->sec == sec)
break;
if (entry)
last_entry = entry->prev;
return entry;
}
static _arm_elf_section_data *
get_arm_elf_section_data (asection * sec)
{
struct section_list * entry;
entry = find_arm_elf_section_entry (sec);
if (entry)
return elf32_arm_section_data (entry->sec);
else
return NULL;
}
static void
unrecord_section_with_arm_elf_section_data (asection * sec)
{
struct section_list * entry;
entry = find_arm_elf_section_entry (sec);
if (entry)
{
if (entry->prev != NULL)
entry->prev->next = entry->next;
if (entry->next != NULL)
entry->next->prev = entry->prev;
if (entry == sections_with_arm_elf_section_data)
sections_with_arm_elf_section_data = entry->next;
free (entry);
}
}
typedef struct
{
void *finfo;
struct bfd_link_info *info;
int plt_shndx;
bfd_vma plt_offset;
bfd_boolean (*func) (void *, const char *, Elf_Internal_Sym *,
asection *, struct elf_link_hash_entry *);
} output_arch_syminfo;
enum map_symbol_type
{
ARM_MAP_ARM,
ARM_MAP_THUMB,
ARM_MAP_DATA
};
static bfd_boolean
elf32_arm_ouput_plt_map_sym (output_arch_syminfo *osi,
enum map_symbol_type type,
bfd_vma offset)
{
static const char *names[3] = {"$a", "$t", "$d"};
struct elf32_arm_link_hash_table *htab;
Elf_Internal_Sym sym;
htab = elf32_arm_hash_table (osi->info);
sym.st_value = osi->plt_offset + offset;
sym.st_size = 0;
sym.st_other = 0;
sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_NOTYPE);
sym.st_shndx = osi->plt_shndx;
if (!osi->func (osi->finfo, names[type], &sym, htab->splt, NULL))
return FALSE;
return TRUE;
}
static bfd_boolean
elf32_arm_output_plt_map (struct elf_link_hash_entry *h, void *inf)
{
output_arch_syminfo *osi = (output_arch_syminfo *) inf;
struct elf32_arm_link_hash_table *htab;
struct elf32_arm_link_hash_entry *eh;
bfd_vma addr;
htab = elf32_arm_hash_table (osi->info);
if (h->root.type == bfd_link_hash_indirect)
return TRUE;
if (h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;
if (h->plt.offset == (bfd_vma) -1)
return TRUE;
eh = (struct elf32_arm_link_hash_entry *) h;
addr = h->plt.offset;
if (htab->symbian_p)
{
if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_ARM, addr))
return FALSE;
if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_DATA, addr + 4))
return FALSE;
}
else if (htab->vxworks_p)
{
if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_ARM, addr))
return FALSE;
if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_DATA, addr + 8))
return FALSE;
if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_ARM, addr + 12))
return FALSE;
if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_DATA, addr + 20))
return FALSE;
}
else
{
bfd_boolean thumb_stub;
thumb_stub = eh->plt_thumb_refcount > 0 && !htab->use_blx;
if (thumb_stub)
{
if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_THUMB, addr - 4))
return FALSE;
}
#ifdef FOUR_WORD_PLT
if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_ARM, addr))
return FALSE;
if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_DATA, addr + 12))
return FALSE;
#else
if (thumb_stub || addr == 20)
{
if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_ARM, addr))
return FALSE;
}
#endif
}
return TRUE;
}
static bfd_boolean
elf32_arm_output_arch_local_syms (bfd *output_bfd,
struct bfd_link_info *info,
void *finfo, bfd_boolean (*func) (void *, const char *,
Elf_Internal_Sym *,
asection *,
struct elf_link_hash_entry *))
{
output_arch_syminfo osi;
struct elf32_arm_link_hash_table *htab;
htab = elf32_arm_hash_table (info);
if (!htab->splt || htab->splt->size == 0)
return TRUE;
check_use_blx(htab);
osi.finfo = finfo;
osi.info = info;
osi.func = func;
osi.plt_shndx = _bfd_elf_section_from_bfd_section (output_bfd,
htab->splt->output_section);
osi.plt_offset = htab->splt->output_section->vma;
if (htab->vxworks_p)
{
if (!info->shared)
{
if (!elf32_arm_ouput_plt_map_sym (&osi, ARM_MAP_ARM, 0))
return FALSE;
if (!elf32_arm_ouput_plt_map_sym (&osi, ARM_MAP_DATA, 12))
return FALSE;
}
}
else if (!htab->symbian_p)
{
if (!elf32_arm_ouput_plt_map_sym (&osi, ARM_MAP_ARM, 0))
return FALSE;
#ifndef FOUR_WORD_PLT
if (!elf32_arm_ouput_plt_map_sym (&osi, ARM_MAP_DATA, 16))
return FALSE;
#endif
}
elf_link_hash_traverse (&htab->root, elf32_arm_output_plt_map, (void *) &osi);
return TRUE;
}
static bfd_boolean
elf32_arm_new_section_hook (bfd *abfd, asection *sec)
{
if (!sec->used_by_bfd)
{
_arm_elf_section_data *sdata;
bfd_size_type amt = sizeof (*sdata);
sdata = bfd_zalloc (abfd, amt);
if (sdata == NULL)
return FALSE;
sec->used_by_bfd = sdata;
}
record_section_with_arm_elf_section_data (sec);
return _bfd_elf_new_section_hook (abfd, sec);
}
static int
elf32_arm_compare_mapping (const void * a, const void * b)
{
return ((const elf32_arm_section_map *) a)->vma
> ((const elf32_arm_section_map *) b)->vma;
}
static bfd_boolean
elf32_arm_write_section (bfd *output_bfd,
struct bfd_link_info *link_info, asection *sec,
bfd_byte *contents)
{
int mapcount, errcount;
_arm_elf_section_data *arm_data;
struct elf32_arm_link_hash_table *globals = elf32_arm_hash_table (link_info);
elf32_arm_section_map *map;
elf32_vfp11_erratum_list *errnode;
bfd_vma ptr;
bfd_vma end;
bfd_vma offset = sec->output_section->vma + sec->output_offset;
bfd_byte tmp;
int i;
arm_data = get_arm_elf_section_data (sec);
if (arm_data == NULL)
return FALSE;
mapcount = arm_data->mapcount;
map = arm_data->map;
errcount = arm_data->erratumcount;
if (errcount != 0)
{
unsigned int endianflip = bfd_big_endian (output_bfd) ? 3 : 0;
for (errnode = arm_data->erratumlist; errnode != 0;
errnode = errnode->next)
{
bfd_vma index = errnode->vma - offset;
switch (errnode->type)
{
case VFP11_ERRATUM_BRANCH_TO_ARM_VENEER:
{
bfd_vma branch_to_veneer;
unsigned int insn = (errnode->u.b.vfp_insn & 0xf0000000)
| 0x0a000000;
index -= 4;
branch_to_veneer = errnode->u.b.veneer->vma
- errnode->vma - 4;
if ((signed) branch_to_veneer < -(1 << 25)
|| (signed) branch_to_veneer >= (1 << 25))
(*_bfd_error_handler) (_("%B: error: VFP11 veneer out of "
"range"), output_bfd);
insn |= (branch_to_veneer >> 2) & 0xffffff;
contents[endianflip ^ index] = insn & 0xff;
contents[endianflip ^ (index + 1)] = (insn >> 8) & 0xff;
contents[endianflip ^ (index + 2)] = (insn >> 16) & 0xff;
contents[endianflip ^ (index + 3)] = (insn >> 24) & 0xff;
}
break;
case VFP11_ERRATUM_ARM_VENEER:
{
bfd_vma branch_from_veneer;
unsigned int insn;
branch_from_veneer = errnode->u.v.branch->vma
- errnode->vma - 12;
if ((signed) branch_from_veneer < -(1 << 25)
|| (signed) branch_from_veneer >= (1 << 25))
(*_bfd_error_handler) (_("%B: error: VFP11 veneer out of "
"range"), output_bfd);
insn = errnode->u.v.branch->u.b.vfp_insn;
contents[endianflip ^ index] = insn & 0xff;
contents[endianflip ^ (index + 1)] = (insn >> 8) & 0xff;
contents[endianflip ^ (index + 2)] = (insn >> 16) & 0xff;
contents[endianflip ^ (index + 3)] = (insn >> 24) & 0xff;
insn = 0xea000000 | ((branch_from_veneer >> 2) & 0xffffff);
contents[endianflip ^ (index + 4)] = insn & 0xff;
contents[endianflip ^ (index + 5)] = (insn >> 8) & 0xff;
contents[endianflip ^ (index + 6)] = (insn >> 16) & 0xff;
contents[endianflip ^ (index + 7)] = (insn >> 24) & 0xff;
}
break;
default:
abort ();
}
}
}
if (mapcount == 0)
return FALSE;
if (globals->byteswap_code)
{
qsort (map, mapcount, sizeof (* map), elf32_arm_compare_mapping);
ptr = map[0].vma;
for (i = 0; i < mapcount; i++)
{
if (i == mapcount - 1)
end = sec->size;
else
end = map[i + 1].vma;
switch (map[i].type)
{
case 'a':
while (ptr + 3 < end)
{
tmp = contents[ptr];
contents[ptr] = contents[ptr + 3];
contents[ptr + 3] = tmp;
tmp = contents[ptr + 1];
contents[ptr + 1] = contents[ptr + 2];
contents[ptr + 2] = tmp;
ptr += 4;
}
break;
case 't':
while (ptr + 1 < end)
{
tmp = contents[ptr];
contents[ptr] = contents[ptr + 1];
contents[ptr + 1] = tmp;
ptr += 2;
}
break;
case 'd':
break;
}
ptr = end;
}
}
free (map);
arm_data->mapcount = 0;
arm_data->mapsize = 0;
arm_data->map = NULL;
unrecord_section_with_arm_elf_section_data (sec);
return FALSE;
}
static void
unrecord_section_via_map_over_sections (bfd * abfd ATTRIBUTE_UNUSED,
asection * sec,
void * ignore ATTRIBUTE_UNUSED)
{
unrecord_section_with_arm_elf_section_data (sec);
}
static bfd_boolean
elf32_arm_close_and_cleanup (bfd * abfd)
{
if (abfd->sections)
bfd_map_over_sections (abfd,
unrecord_section_via_map_over_sections,
NULL);
return _bfd_elf_close_and_cleanup (abfd);
}
static bfd_boolean
elf32_arm_bfd_free_cached_info (bfd * abfd)
{
if (abfd->sections)
bfd_map_over_sections (abfd,
unrecord_section_via_map_over_sections,
NULL);
return _bfd_free_cached_info (abfd);
}
static void
elf32_arm_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED,
asymbol *asym)
{
elf_symbol_type *elfsym = (elf_symbol_type *) asym;
if (ELF_ST_TYPE (elfsym->internal_elf_sym.st_info) == STT_ARM_TFUNC)
elfsym->symbol.flags |= BSF_FUNCTION;
}
static bfd_boolean
elf32_arm_swap_symbol_in (bfd * abfd,
const void *psrc,
const void *pshn,
Elf_Internal_Sym *dst)
{
if (!bfd_elf32_swap_symbol_in (abfd, psrc, pshn, dst))
return FALSE;
if (ELF_ST_TYPE (dst->st_info) == STT_FUNC
&& (dst->st_value & 1))
{
dst->st_info = ELF_ST_INFO (ELF_ST_BIND (dst->st_info), STT_ARM_TFUNC);
dst->st_value &= ~(bfd_vma) 1;
}
return TRUE;
}
static void
elf32_arm_swap_symbol_out (bfd *abfd,
const Elf_Internal_Sym *src,
void *cdst,
void *shndx)
{
Elf_Internal_Sym newsym;
if (ELF_ST_TYPE (src->st_info) == STT_ARM_TFUNC)
{
newsym = *src;
newsym.st_info = ELF_ST_INFO (ELF_ST_BIND (src->st_info), STT_FUNC);
if (newsym.st_shndx != SHN_UNDEF)
{
newsym.st_value |= 1;
}
src = &newsym;
}
bfd_elf32_swap_symbol_out (abfd, src, cdst, shndx);
}
static bfd_boolean
elf32_arm_modify_segment_map (bfd *abfd,
struct bfd_link_info *info ATTRIBUTE_UNUSED)
{
struct elf_segment_map *m;
asection *sec;
sec = bfd_get_section_by_name (abfd, ".ARM.exidx");
if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
{
m = elf_tdata (abfd)->segment_map;
while (m && m->p_type != PT_ARM_EXIDX)
m = m->next;
if (!m)
{
m = bfd_zalloc (abfd, sizeof (struct elf_segment_map));
if (m == NULL)
return FALSE;
m->p_type = PT_ARM_EXIDX;
m->count = 1;
m->sections[0] = sec;
m->next = elf_tdata (abfd)->segment_map;
elf_tdata (abfd)->segment_map = m;
}
}
return TRUE;
}
static int
elf32_arm_additional_program_headers (bfd *abfd,
struct bfd_link_info *info ATTRIBUTE_UNUSED)
{
asection *sec;
sec = bfd_get_section_by_name (abfd, ".ARM.exidx");
if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
return 1;
else
return 0;
}
const struct elf_size_info elf32_arm_size_info = {
sizeof (Elf32_External_Ehdr),
sizeof (Elf32_External_Phdr),
sizeof (Elf32_External_Shdr),
sizeof (Elf32_External_Rel),
sizeof (Elf32_External_Rela),
sizeof (Elf32_External_Sym),
sizeof (Elf32_External_Dyn),
sizeof (Elf_External_Note),
4,
1,
32, 2,
ELFCLASS32, EV_CURRENT,
bfd_elf32_write_out_phdrs,
bfd_elf32_write_shdrs_and_ehdr,
bfd_elf32_write_relocs,
elf32_arm_swap_symbol_in,
elf32_arm_swap_symbol_out,
bfd_elf32_slurp_reloc_table,
bfd_elf32_slurp_symbol_table,
bfd_elf32_swap_dyn_in,
bfd_elf32_swap_dyn_out,
bfd_elf32_swap_reloc_in,
bfd_elf32_swap_reloc_out,
bfd_elf32_swap_reloca_in,
bfd_elf32_swap_reloca_out
};
#define ELF_ARCH bfd_arch_arm
#define ELF_MACHINE_CODE EM_ARM
#ifdef __QNXTARGET__
#define ELF_MAXPAGESIZE 0x1000
#else
#define ELF_MAXPAGESIZE 0x8000
#endif
#define ELF_MINPAGESIZE 0x1000
#define ELF_COMMONPAGESIZE 0x1000
#define bfd_elf32_mkobject elf32_arm_mkobject
#define bfd_elf32_bfd_copy_private_bfd_data elf32_arm_copy_private_bfd_data
#define bfd_elf32_bfd_merge_private_bfd_data elf32_arm_merge_private_bfd_data
#define bfd_elf32_bfd_set_private_flags elf32_arm_set_private_flags
#define bfd_elf32_bfd_print_private_bfd_data elf32_arm_print_private_bfd_data
#define bfd_elf32_bfd_link_hash_table_create elf32_arm_link_hash_table_create
#define bfd_elf32_bfd_reloc_type_lookup elf32_arm_reloc_type_lookup
#define bfd_elf32_find_nearest_line elf32_arm_find_nearest_line
#define bfd_elf32_find_inliner_info elf32_arm_find_inliner_info
#define bfd_elf32_new_section_hook elf32_arm_new_section_hook
#define bfd_elf32_bfd_is_target_special_symbol elf32_arm_is_target_special_symbol
#define bfd_elf32_close_and_cleanup elf32_arm_close_and_cleanup
#define bfd_elf32_bfd_free_cached_info elf32_arm_bfd_free_cached_info
#define bfd_elf32_bfd_final_link elf32_arm_bfd_final_link
#define elf_backend_get_symbol_type elf32_arm_get_symbol_type
#define elf_backend_gc_mark_hook elf32_arm_gc_mark_hook
#define elf_backend_gc_sweep_hook elf32_arm_gc_sweep_hook
#define elf_backend_check_relocs elf32_arm_check_relocs
#define elf_backend_relocate_section elf32_arm_relocate_section
#define elf_backend_write_section elf32_arm_write_section
#define elf_backend_adjust_dynamic_symbol elf32_arm_adjust_dynamic_symbol
#define elf_backend_create_dynamic_sections elf32_arm_create_dynamic_sections
#define elf_backend_finish_dynamic_symbol elf32_arm_finish_dynamic_symbol
#define elf_backend_finish_dynamic_sections elf32_arm_finish_dynamic_sections
#define elf_backend_size_dynamic_sections elf32_arm_size_dynamic_sections
#define elf_backend_init_index_section _bfd_elf_init_2_index_sections
#define elf_backend_post_process_headers elf32_arm_post_process_headers
#define elf_backend_reloc_type_class elf32_arm_reloc_type_class
#define elf_backend_object_p elf32_arm_object_p
#define elf_backend_section_flags elf32_arm_section_flags
#define elf_backend_fake_sections elf32_arm_fake_sections
#define elf_backend_section_from_shdr elf32_arm_section_from_shdr
#define elf_backend_final_write_processing elf32_arm_final_write_processing
#define elf_backend_copy_indirect_symbol elf32_arm_copy_indirect_symbol
#define elf_backend_symbol_processing elf32_arm_symbol_processing
#define elf_backend_size_info elf32_arm_size_info
#define elf_backend_modify_segment_map elf32_arm_modify_segment_map
#define elf_backend_additional_program_headers \
elf32_arm_additional_program_headers
#define elf_backend_output_arch_local_syms \
elf32_arm_output_arch_local_syms
#define elf_backend_begin_write_processing \
elf32_arm_begin_write_processing
#define elf_backend_can_refcount 1
#define elf_backend_can_gc_sections 1
#define elf_backend_plt_readonly 1
#define elf_backend_want_got_plt 1
#define elf_backend_want_plt_sym 0
#define elf_backend_may_use_rel_p 1
#define elf_backend_may_use_rela_p 0
#define elf_backend_default_use_rela_p 0
#define elf_backend_rela_normal 0
#define elf_backend_got_header_size 12
#include "elf32-target.h"
#undef TARGET_LITTLE_SYM
#define TARGET_LITTLE_SYM bfd_elf32_littlearm_vxworks_vec
#undef TARGET_LITTLE_NAME
#define TARGET_LITTLE_NAME "elf32-littlearm-vxworks"
#undef TARGET_BIG_SYM
#define TARGET_BIG_SYM bfd_elf32_bigarm_vxworks_vec
#undef TARGET_BIG_NAME
#define TARGET_BIG_NAME "elf32-bigarm-vxworks"
static struct bfd_link_hash_table *
elf32_arm_vxworks_link_hash_table_create (bfd *abfd)
{
struct bfd_link_hash_table *ret;
ret = elf32_arm_link_hash_table_create (abfd);
if (ret)
{
struct elf32_arm_link_hash_table *htab
= (struct elf32_arm_link_hash_table *) ret;
htab->use_rel = 0;
htab->vxworks_p = 1;
}
return ret;
}
static void
elf32_arm_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
{
elf32_arm_final_write_processing (abfd, linker);
elf_vxworks_final_write_processing (abfd, linker);
}
#undef elf32_bed
#define elf32_bed elf32_arm_vxworks_bed
#undef bfd_elf32_bfd_link_hash_table_create
#define bfd_elf32_bfd_link_hash_table_create \
elf32_arm_vxworks_link_hash_table_create
#undef elf_backend_add_symbol_hook
#define elf_backend_add_symbol_hook \
elf_vxworks_add_symbol_hook
#undef elf_backend_final_write_processing
#define elf_backend_final_write_processing \
elf32_arm_vxworks_final_write_processing
#undef elf_backend_emit_relocs
#define elf_backend_emit_relocs \
elf_vxworks_emit_relocs
#undef elf_backend_may_use_rel_p
#define elf_backend_may_use_rel_p 0
#undef elf_backend_may_use_rela_p
#define elf_backend_may_use_rela_p 1
#undef elf_backend_default_use_rela_p
#define elf_backend_default_use_rela_p 1
#undef elf_backend_rela_normal
#define elf_backend_rela_normal 1
#undef elf_backend_want_plt_sym
#define elf_backend_want_plt_sym 1
#undef ELF_MAXPAGESIZE
#define ELF_MAXPAGESIZE 0x1000
#include "elf32-target.h"
#undef TARGET_LITTLE_SYM
#define TARGET_LITTLE_SYM bfd_elf32_littlearm_symbian_vec
#undef TARGET_LITTLE_NAME
#define TARGET_LITTLE_NAME "elf32-littlearm-symbian"
#undef TARGET_BIG_SYM
#define TARGET_BIG_SYM bfd_elf32_bigarm_symbian_vec
#undef TARGET_BIG_NAME
#define TARGET_BIG_NAME "elf32-bigarm-symbian"
static struct bfd_link_hash_table *
elf32_arm_symbian_link_hash_table_create (bfd *abfd)
{
struct bfd_link_hash_table *ret;
ret = elf32_arm_link_hash_table_create (abfd);
if (ret)
{
struct elf32_arm_link_hash_table *htab
= (struct elf32_arm_link_hash_table *)ret;
htab->plt_header_size = 0;
htab->plt_entry_size = 4 * NUM_ELEM (elf32_arm_symbian_plt_entry);
htab->symbian_p = 1;
htab->use_blx = 1;
htab->root.is_relocatable_executable = 1;
}
return ret;
}
static const struct bfd_elf_special_section
elf32_arm_symbian_special_sections[] =
{
{ STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, 0 },
{ STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, 0 },
{ STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, 0 },
{ STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, 0 },
{ STRING_COMMA_LEN (".hash"), 0, SHT_HASH, 0 },
{ STRING_COMMA_LEN (".init_array"), 0, SHT_INIT_ARRAY, SHF_ALLOC },
{ STRING_COMMA_LEN (".fini_array"), 0, SHT_FINI_ARRAY, SHF_ALLOC },
{ STRING_COMMA_LEN (".preinit_array"), 0, SHT_PREINIT_ARRAY, SHF_ALLOC },
{ NULL, 0, 0, 0, 0 }
};
static void
elf32_arm_symbian_begin_write_processing (bfd *abfd,
struct bfd_link_info *link_info)
{
abfd->flags &= ~D_PAGED;
elf32_arm_begin_write_processing(abfd, link_info);
}
static bfd_boolean
elf32_arm_symbian_modify_segment_map (bfd *abfd,
struct bfd_link_info *info)
{
struct elf_segment_map *m;
asection *dynsec;
dynsec = bfd_get_section_by_name (abfd, ".dynamic");
if (dynsec)
{
for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
if (m->p_type == PT_DYNAMIC)
break;
if (m == NULL)
{
m = _bfd_elf_make_dynamic_segment (abfd, dynsec);
m->next = elf_tdata (abfd)->segment_map;
elf_tdata (abfd)->segment_map = m;
}
}
return elf32_arm_modify_segment_map (abfd, info);
}
#undef elf32_bed
#define elf32_bed elf32_arm_symbian_bed
#undef ELF_DYNAMIC_SEC_FLAGS
#define ELF_DYNAMIC_SEC_FLAGS \
(SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED)
#undef bfd_elf32_bfd_link_hash_table_create
#define bfd_elf32_bfd_link_hash_table_create \
elf32_arm_symbian_link_hash_table_create
#undef elf_backend_add_symbol_hook
#undef elf_backend_special_sections
#define elf_backend_special_sections elf32_arm_symbian_special_sections
#undef elf_backend_begin_write_processing
#define elf_backend_begin_write_processing \
elf32_arm_symbian_begin_write_processing
#undef elf_backend_final_write_processing
#define elf_backend_final_write_processing \
elf32_arm_final_write_processing
#undef elf_backend_emit_relocs
#undef elf_backend_modify_segment_map
#define elf_backend_modify_segment_map elf32_arm_symbian_modify_segment_map
#undef elf_backend_got_header_size
#define elf_backend_got_header_size 0
#undef elf_backend_want_got_plt
#define elf_backend_want_got_plt 0
#undef elf_backend_may_use_rel_p
#define elf_backend_may_use_rel_p 1
#undef elf_backend_may_use_rela_p
#define elf_backend_may_use_rela_p 0
#undef elf_backend_default_use_rela_p
#define elf_backend_default_use_rela_p 0
#undef elf_backend_rela_normal
#define elf_backend_rela_normal 0
#undef elf_backend_want_plt_sym
#define elf_backend_want_plt_sym 0
#undef ELF_MAXPAGESIZE
#define ELF_MAXPAGESIZE 0x8000
#include "elf32-target.h"