#include "defs.h"
#include "arch-utils.h"
#include "frame.h"
#include "inferior.h"
#include "target.h"
#include "value.h"
#include "bfd.h"
#include "gdb_string.h"
#include "regcache.h"
#include "osabi.h"
#ifdef USE_PROC_FS
#include <sys/procfs.h>
#include "gregset.h"
#endif
#include "gdbcore.h"
#include "symfile.h"
#if (GDB_MULTI_ARCH > 0)
#define SPARC_HAS_FPU (gdbarch_tdep (current_gdbarch)->has_fpu)
#define FP_REGISTER_BYTES (gdbarch_tdep (current_gdbarch)->fp_register_bytes)
#define FP_MAX_REGNUM (gdbarch_tdep (current_gdbarch)->fp_max_regnum)
#define SPARC_INTREG_SIZE (gdbarch_tdep (current_gdbarch)->intreg_size)
#define DUMMY_REG_SAVE_OFFSET (gdbarch_tdep (current_gdbarch)->reg_save_offset)
#else
#if defined(TARGET_SPARCLET) || defined(TARGET_SPARCLITE)
#define SPARC_HAS_FPU 0
#else
#define SPARC_HAS_FPU 1
#endif
#if (GDB_TARGET_IS_SPARC64)
#define FP_REGISTER_BYTES (64 * 4)
#else
#if (SPARC_HAS_FPU)
#define FP_REGISTER_BYTES (32 * 4)
#else
#define FP_REGISTER_BYTES 0
#endif
#endif
#if (GDB_TARGET_IS_SPARC64)
#define FP_MAX_REGNUM (FP0_REGNUM + 48)
#else
#define FP_MAX_REGNUM (FP0_REGNUM + 32)
#endif
#define SPARC_INTREG_SIZE (REGISTER_RAW_SIZE (G0_REGNUM))
#if (GDB_TARGET_IS_SPARC64)
#define DUMMY_REG_SAVE_OFFSET (128 + 16)
#else
#define DUMMY_REG_SAVE_OFFSET 0x60
#endif
#endif
struct gdbarch_tdep
{
int has_fpu;
int fp_register_bytes;
int y_regnum;
int fp_max_regnum;
int intreg_size;
int reg_save_offset;
int call_dummy_call_offset;
int print_insn_mach;
};
extern int stop_after_trap;
int deferred_stores = 0;
int bi_endian = 0;
static unsigned long
fetch_instruction (CORE_ADDR pc)
{
unsigned long retval;
int i;
unsigned char buf[4];
read_memory (pc, buf, sizeof (buf));
retval = 0;
for (i = 0; i < sizeof (buf); ++i)
retval = (retval << 8) | buf[i];
return retval;
}
#define X_OP(i) (((i) >> 30) & 0x3)
#define X_RD(i) (((i) >> 25) & 0x1f)
#define X_A(i) (((i) >> 29) & 1)
#define X_COND(i) (((i) >> 25) & 0xf)
#define X_OP2(i) (((i) >> 22) & 0x7)
#define X_IMM22(i) ((i) & 0x3fffff)
#define X_OP3(i) (((i) >> 19) & 0x3f)
#define X_RS1(i) (((i) >> 14) & 0x1f)
#define X_I(i) (((i) >> 13) & 1)
#define X_IMM13(i) ((i) & 0x1fff)
#define X_SIMM13(i) ((X_IMM13 (i) ^ 0x1000) - 0x1000)
#define X_DISP22(i) ((X_IMM22 (i) ^ 0x200000) - 0x200000)
#define X_CC(i) (((i) >> 20) & 3)
#define X_P(i) (((i) >> 19) & 1)
#define X_DISP19(i) ((((i) & 0x7ffff) ^ 0x40000) - 0x40000)
#define X_RCOND(i) (((i) >> 25) & 7)
#define X_DISP16(i) ((((((i) >> 6) && 0xc000) | ((i) & 0x3fff)) ^ 0x8000) - 0x8000)
#define X_FCN(i) (((i) >> 25) & 31)
typedef enum
{
Error, not_branch, bicc, bicca, ba, baa, ticc, ta, done_retry
} branch_type;
static CORE_ADDR next_pc, npc4, target;
static int brknpc4, brktrg;
typedef char binsn_quantum[BREAKPOINT_MAX];
static binsn_quantum break_mem[3];
static branch_type isbranch (long, CORE_ADDR, CORE_ADDR *);
void
sparc_software_single_step (enum target_signal ignore,
int insert_breakpoints_p)
{
branch_type br;
CORE_ADDR pc;
long pc_instruction;
if (insert_breakpoints_p)
{
next_pc = read_register (NPC_REGNUM);
npc4 = next_pc + 4;
target_insert_breakpoint (next_pc, break_mem[0]);
pc = read_register (PC_REGNUM);
pc_instruction = fetch_instruction (pc);
br = isbranch (pc_instruction, pc, &target);
brknpc4 = brktrg = 0;
if (br == bicca)
{
brknpc4 = 1;
target_insert_breakpoint (npc4, break_mem[1]);
}
else if (br == baa && target != next_pc)
{
brktrg = 1;
target_insert_breakpoint (target, break_mem[2]);
}
else if (GDB_TARGET_IS_SPARC64 && br == done_retry)
{
brktrg = 1;
target_insert_breakpoint (target, break_mem[2]);
}
}
else
{
target_remove_breakpoint (next_pc, break_mem[0]);
if (brknpc4)
target_remove_breakpoint (npc4, break_mem[1]);
if (brktrg)
target_remove_breakpoint (target, break_mem[2]);
}
}
struct frame_extra_info
{
CORE_ADDR bottom;
int in_prologue;
int flat;
CORE_ADDR pc_addr;
CORE_ADDR fp_addr;
int sp_offset;
};
void
sparc_init_extra_frame_info (int fromleaf, struct frame_info *fi)
{
char *name;
CORE_ADDR prologue_start, prologue_end;
int insn;
frame_extra_info_zalloc (fi, sizeof (struct frame_extra_info));
frame_saved_regs_zalloc (fi);
get_frame_extra_info (fi)->bottom =
(get_next_frame (fi)
? (get_frame_base (fi) == get_frame_base (get_next_frame (fi))
? get_frame_extra_info (get_next_frame (fi))->bottom
: get_frame_base (get_next_frame (fi)))
: read_sp ());
if (get_next_frame (fi))
{
char *buf;
buf = alloca (MAX_REGISTER_RAW_SIZE);
if (get_next_frame (get_next_frame (fi)) != NULL
&& ((get_frame_type (get_next_frame (get_next_frame (fi))) == SIGTRAMP_FRAME)
|| deprecated_frame_in_dummy (get_next_frame (get_next_frame (fi))))
&& frameless_look_for_prologue (get_next_frame (fi)))
{
deprecated_update_frame_base_hack (fi, get_frame_base (get_next_frame (fi)));
get_frame_extra_info (fi)->bottom =
get_frame_extra_info (get_next_frame (fi))->bottom;
}
else
{
get_saved_register (buf, 0, 0, fi, FP_REGNUM, 0);
deprecated_update_frame_base_hack (fi, extract_address (buf, REGISTER_RAW_SIZE (FP_REGNUM)));
if (GDB_TARGET_IS_SPARC64 && (get_frame_base (fi) & 1))
deprecated_update_frame_base_hack (fi, get_frame_base (fi) + 2047);
}
}
get_frame_extra_info (fi)->flat = 0;
get_frame_extra_info (fi)->in_prologue = 0;
if (find_pc_partial_function (get_frame_pc (fi), &name, &prologue_start, &prologue_end))
{
insn = fetch_instruction (prologue_start);
if (X_OP (insn) == 2 && X_RD (insn) == 14 && X_OP3 (insn) == 0
&& X_I (insn) && X_SIMM13 (insn) < 0)
{
int offset = X_SIMM13 (insn);
insn = fetch_instruction (prologue_start + 4);
if (X_OP (insn) == 3
&& X_RD (insn) == 31
&& X_OP3 (insn) == 4
&& X_RS1 (insn) == 14)
{
char *buf;
buf = alloca (MAX_REGISTER_RAW_SIZE);
get_frame_extra_info (fi)->flat = 1;
get_frame_extra_info (fi)->sp_offset = offset;
get_saved_register (buf, 0, 0, fi, I7_REGNUM, 0);
deprecated_update_frame_base_hack (fi, extract_address (buf, REGISTER_RAW_SIZE (I7_REGNUM)));
if (GDB_TARGET_IS_SPARC64 && (get_frame_base (fi) & 1))
deprecated_update_frame_base_hack (fi, get_frame_base (fi) + 2047);
get_frame_extra_info (fi)->fp_addr =
get_frame_base (fi) + get_frame_extra_info (fi)->sp_offset + X_SIMM13 (insn);
get_frame_extra_info (fi)->pc_addr = 0;
insn = fetch_instruction (prologue_start + 12);
if (X_OP (insn) == 3
&& X_RD (insn) == 15
&& X_OP3 (insn) == 4
&& X_RS1 (insn) == 14)
get_frame_extra_info (fi)->pc_addr =
get_frame_base (fi) + get_frame_extra_info (fi)->sp_offset + X_SIMM13 (insn);
}
}
else
{
CORE_ADDR addr;
struct symtab_and_line sal;
sal = find_pc_line (prologue_start, 0);
if (sal.line == 0)
prologue_end = get_frame_pc (fi);
else if (sal.end < prologue_end)
prologue_end = sal.end;
if (get_frame_pc (fi) < prologue_end)
{
for (addr = prologue_start; addr < get_frame_pc (fi); addr += 4)
{
insn = read_memory_integer (addr, 4);
if (X_OP (insn) == 2 && X_OP3 (insn) == 0x3c)
break;
}
if (addr >= get_frame_pc (fi))
{
get_frame_extra_info (fi)->in_prologue = 1;
deprecated_update_frame_base_hack (fi, read_register (SP_REGNUM));
}
}
}
}
if (get_next_frame (fi) && get_frame_base (fi) == 0)
{
deprecated_update_frame_base_hack (fi, get_frame_base (get_next_frame (fi)));
deprecated_update_frame_pc_hack (fi, get_frame_pc (get_next_frame (fi)));
}
}
CORE_ADDR
sparc_frame_chain (struct frame_info *frame)
{
return (CORE_ADDR) 1;
}
CORE_ADDR
sparc_extract_struct_value_address (char *regbuf)
{
return extract_address (regbuf + REGISTER_BYTE (O0_REGNUM),
REGISTER_RAW_SIZE (O0_REGNUM));
}
CORE_ADDR
sparc_frame_saved_pc (struct frame_info *frame)
{
char *buf;
CORE_ADDR addr;
buf = alloca (MAX_REGISTER_RAW_SIZE);
if ((get_frame_type (frame) == SIGTRAMP_FRAME))
{
#ifndef SIGCONTEXT_PC_OFFSET
#define SIGCONTEXT_PC_OFFSET 12
#endif
CORE_ADDR sigcontext_addr;
char *scbuf;
int saved_pc_offset = SIGCONTEXT_PC_OFFSET;
char *name = NULL;
scbuf = alloca (TARGET_PTR_BIT / HOST_CHAR_BIT);
find_pc_partial_function (get_frame_pc (frame), &name,
(CORE_ADDR *) NULL, (CORE_ADDR *) NULL);
if (name && STREQ (name, "ucbsigvechandler"))
saved_pc_offset = 12;
get_saved_register (buf, (int *) NULL, (CORE_ADDR *) NULL,
frame, O0_REGNUM + 2, (enum lval_type *) NULL);
sigcontext_addr = extract_address (buf, REGISTER_RAW_SIZE (O0_REGNUM + 2));
target_read_memory (sigcontext_addr + saved_pc_offset,
scbuf, sizeof (scbuf));
return extract_address (scbuf, sizeof (scbuf));
}
else if (get_frame_extra_info (frame)->in_prologue ||
(get_next_frame (frame) != NULL &&
((get_frame_type (get_next_frame (frame)) == SIGTRAMP_FRAME) ||
deprecated_frame_in_dummy (get_next_frame (frame))) &&
frameless_look_for_prologue (frame)))
{
get_saved_register (buf, (int *) NULL, (CORE_ADDR *) NULL,
frame, O7_REGNUM, (enum lval_type *) NULL);
return PC_ADJUST (extract_address (buf, SPARC_INTREG_SIZE));
}
if (get_frame_extra_info (frame)->flat)
addr = get_frame_extra_info (frame)->pc_addr;
else
addr = get_frame_extra_info (frame)->bottom + FRAME_SAVED_I0 +
SPARC_INTREG_SIZE * (I7_REGNUM - I0_REGNUM);
if (addr == 0)
return PC_ADJUST (read_register (O7_REGNUM));
read_memory (addr, buf, SPARC_INTREG_SIZE);
return PC_ADJUST (extract_address (buf, SPARC_INTREG_SIZE));
}
struct frame_info *
setup_arbitrary_frame (int argc, CORE_ADDR *argv)
{
struct frame_info *frame;
if (argc != 2)
error ("Sparc frame specifications require two arguments: fp and sp");
frame = create_new_frame (argv[0], 0);
if (!frame)
internal_error (__FILE__, __LINE__,
"create_new_frame returned invalid frame");
get_frame_extra_info (frame)->bottom = argv[1];
deprecated_update_frame_pc_hack (frame, FRAME_SAVED_PC (frame));
return frame;
}
static CORE_ADDR examine_prologue (CORE_ADDR, int, struct frame_info *,
CORE_ADDR *);
static CORE_ADDR
examine_prologue (CORE_ADDR start_pc, int frameless_p, struct frame_info *fi,
CORE_ADDR *saved_regs)
{
int insn;
int dest = -1;
CORE_ADDR pc = start_pc;
int is_flat = 0;
insn = fetch_instruction (pc);
if (X_OP (insn) == 0 && X_OP2 (insn) == 4)
{
dest = X_RD (insn);
pc += 4;
insn = fetch_instruction (pc);
}
if (X_OP (insn) == 2
&& X_I (insn)
&& (X_RD (insn) == 1 || X_RD (insn) == dest))
{
pc += 4;
insn = fetch_instruction (pc);
}
if (X_OP (insn) == 2 && X_OP3 (insn) == 60)
{
pc += 4;
if (frameless_p)
return pc;
insn = fetch_instruction (pc);
}
else if (X_OP (insn) == 2 && X_RD (insn) == 14 && X_OP3 (insn) == 0)
{
pc += 4;
if (frameless_p)
return pc;
is_flat = 1;
insn = fetch_instruction (pc);
if (X_OP (insn) == 3
&& X_RD (insn) == 31
&& X_OP3 (insn) == 4
&& X_RS1 (insn) == 14)
{
pc += 4;
insn = fetch_instruction (pc);
if (X_OP (insn) == 2
&& X_OP3 (insn) == 4
&& X_RS1 (insn) == 14
&& X_RD (insn) == 31)
{
pc += 4;
insn = fetch_instruction (pc);
}
else
return pc;
}
else
return pc;
}
else
return start_pc;
while (1)
{
if (X_OP (insn) == 3
&& (X_OP3 (insn) & 0x3c) == 4
&& (X_RD (insn) & 0x18) == 0x18
&& X_I (insn)
&& X_RS1 (insn) == 30)
;
else if (GDB_TARGET_IS_SPARC64
&& X_OP (insn) == 3
&& (X_OP3 (insn) & 0x3c) == 12
&& (X_RD (insn) & 0x18) == 0x18
&& X_I (insn)
&& X_RS1 (insn) == 30)
;
else if (X_OP (insn) == 3
&& (X_OP3 (insn) & 0x3c) == 36
&& X_I (insn)
&& X_RS1 (insn) == 30)
;
else if (is_flat
&& X_OP (insn) == 3
&& X_OP3 (insn) == 4
&& X_RS1 (insn) == 14)
{
if (saved_regs && X_I (insn))
saved_regs[X_RD (insn)] =
get_frame_base (fi) + get_frame_extra_info (fi)->sp_offset + X_SIMM13 (insn);
}
else
break;
pc += 4;
insn = fetch_instruction (pc);
}
return pc;
}
CORE_ADDR
sparc_skip_prologue (CORE_ADDR start_pc)
{
struct symtab_and_line sal;
CORE_ADDR func_start, func_end;
if (find_pc_partial_function (start_pc, NULL, &func_start, &func_end))
{
sal = find_pc_line (func_start, 0);
if (sal.end < func_end
&& start_pc <= sal.end)
return sal.end;
}
return examine_prologue (start_pc, 0, NULL, NULL);
}
int
sparc_prologue_frameless_p (CORE_ADDR ip)
{
return ip == examine_prologue (ip, 1, NULL, NULL);
}
static branch_type
isbranch (long instruction, CORE_ADDR addr, CORE_ADDR *target)
{
branch_type val = not_branch;
long int offset = 0;
*target = 0;
if (X_OP (instruction) == 0
&& (X_OP2 (instruction) == 2
|| X_OP2 (instruction) == 6
|| X_OP2 (instruction) == 1
|| X_OP2 (instruction) == 3
|| X_OP2 (instruction) == 5
|| (GDB_TARGET_IS_SPARC64 && X_OP2 (instruction) == 7)))
{
if (X_COND (instruction) == 8)
val = X_A (instruction) ? baa : ba;
else
val = X_A (instruction) ? bicca : bicc;
switch (X_OP2 (instruction))
{
case 7:
if (!GDB_TARGET_IS_SPARC64)
break;
case 2:
case 6:
offset = 4 * X_DISP22 (instruction);
break;
case 1:
case 5:
offset = 4 * X_DISP19 (instruction);
break;
case 3:
offset = 4 * X_DISP16 (instruction);
break;
}
*target = addr + offset;
}
else if (GDB_TARGET_IS_SPARC64
&& X_OP (instruction) == 2
&& X_OP3 (instruction) == 62)
{
if (X_FCN (instruction) == 0)
{
*target = read_register (TNPC_REGNUM);
val = done_retry;
}
else if (X_FCN (instruction) == 1)
{
*target = read_register (TPC_REGNUM);
val = done_retry;
}
}
return val;
}
void
sparc_get_saved_register (char *raw_buffer, int *optimized, CORE_ADDR *addrp,
struct frame_info *frame, int regnum,
enum lval_type *lval)
{
struct frame_info *frame1;
CORE_ADDR addr;
if (!target_has_registers)
error ("No registers.");
if (optimized)
*optimized = 0;
addr = 0;
if (frame == NULL)
{
if (!target_has_registers)
error ("The program has no registers now.");
if (deprecated_selected_frame == NULL)
error ("No selected frame.");
frame = get_prev_frame (deprecated_selected_frame);
if (frame == 0)
error ("Cmd not meaningful in the outermost frame.");
}
frame1 = get_next_frame (frame);
if (regnum == PC_REGNUM && frame1 != NULL)
{
if (lval != NULL)
*lval = not_lval;
if (raw_buffer != NULL)
{
store_address (raw_buffer, REGISTER_RAW_SIZE (regnum), get_frame_pc (frame));
}
if (addrp != NULL)
*addrp = 0;
return;
}
while (frame1 != NULL)
{
if (get_frame_pc (frame1) >= (get_frame_extra_info (frame1)->bottom
? get_frame_extra_info (frame1)->bottom
: read_sp ())
&& get_frame_pc (frame1) <= get_frame_base (frame1))
{
if (regnum >= G1_REGNUM && regnum < G1_REGNUM + 7)
addr = get_frame_base (frame1) + (regnum - G0_REGNUM) * SPARC_INTREG_SIZE
- (FP_REGISTER_BYTES + 8 * SPARC_INTREG_SIZE);
else if (regnum >= I0_REGNUM && regnum < I0_REGNUM + 8)
addr = (get_frame_extra_info (get_prev_frame (frame1))->bottom
+ (regnum - I0_REGNUM) * SPARC_INTREG_SIZE
+ FRAME_SAVED_I0);
else if (regnum >= L0_REGNUM && regnum < L0_REGNUM + 8)
addr = (get_frame_extra_info (get_prev_frame (frame1))->bottom
+ (regnum - L0_REGNUM) * SPARC_INTREG_SIZE
+ FRAME_SAVED_L0);
else if (regnum >= O0_REGNUM && regnum < O0_REGNUM + 8)
addr = get_frame_base (frame1) + (regnum - O0_REGNUM) * SPARC_INTREG_SIZE
- (FP_REGISTER_BYTES + 16 * SPARC_INTREG_SIZE);
else if (SPARC_HAS_FPU &&
regnum >= FP0_REGNUM && regnum < FP0_REGNUM + 32)
addr = get_frame_base (frame1) + (regnum - FP0_REGNUM) * 4
- (FP_REGISTER_BYTES);
else if (GDB_TARGET_IS_SPARC64 && SPARC_HAS_FPU &&
regnum >= FP0_REGNUM + 32 && regnum < FP_MAX_REGNUM)
addr = get_frame_base (frame1) + 32 * 4 + (regnum - FP0_REGNUM - 32) * 8
- (FP_REGISTER_BYTES);
else if (regnum >= Y_REGNUM && regnum < NUM_REGS)
addr = get_frame_base (frame1) + (regnum - Y_REGNUM) * SPARC_INTREG_SIZE
- (FP_REGISTER_BYTES + 24 * SPARC_INTREG_SIZE);
}
else if (get_frame_extra_info (frame1)->flat)
{
if (regnum == RP_REGNUM)
addr = get_frame_extra_info (frame1)->pc_addr;
else if (regnum == I7_REGNUM)
addr = get_frame_extra_info (frame1)->fp_addr;
else
{
CORE_ADDR func_start;
CORE_ADDR *regs;
regs = alloca (NUM_REGS * sizeof (CORE_ADDR));
memset (regs, 0, NUM_REGS * sizeof (CORE_ADDR));
find_pc_partial_function (get_frame_pc (frame1), NULL, &func_start, NULL);
examine_prologue (func_start, 0, frame1, regs);
addr = regs[regnum];
}
}
else
{
if (regnum >= I0_REGNUM && regnum < I0_REGNUM + 8)
addr = (get_frame_extra_info (get_prev_frame (frame1))->bottom
+ (regnum - I0_REGNUM) * SPARC_INTREG_SIZE
+ FRAME_SAVED_I0);
else if (regnum >= L0_REGNUM && regnum < L0_REGNUM + 8)
addr = (get_frame_extra_info (get_prev_frame (frame1))->bottom
+ (regnum - L0_REGNUM) * SPARC_INTREG_SIZE
+ FRAME_SAVED_L0);
else if (regnum >= O0_REGNUM && regnum < O0_REGNUM + 8)
{
get_saved_register (raw_buffer, optimized, addrp, frame1,
(regnum - O0_REGNUM + I0_REGNUM), lval);
return;
}
}
if (addr != 0)
break;
frame1 = get_next_frame (frame1);
}
if (addr != 0)
{
if (lval != NULL)
*lval = lval_memory;
if (regnum == SP_REGNUM)
{
if (raw_buffer != NULL)
{
store_address (raw_buffer, REGISTER_RAW_SIZE (regnum), addr);
}
if (addrp != NULL)
*addrp = 0;
return;
}
if (raw_buffer != NULL)
read_memory (addr, raw_buffer, REGISTER_RAW_SIZE (regnum));
}
else
{
if (lval != NULL)
*lval = lval_register;
addr = REGISTER_BYTE (regnum);
if (raw_buffer != NULL)
deprecated_read_register_gen (regnum, raw_buffer);
}
if (addrp != NULL)
*addrp = addr;
}
#define DUMMY_STACK_REG_BUF_SIZE \
(((8+8+8) * SPARC_INTREG_SIZE) + FP_REGISTER_BYTES)
#define DUMMY_STACK_SIZE \
(DUMMY_STACK_REG_BUF_SIZE + DUMMY_REG_SAVE_OFFSET)
void
sparc_push_dummy_frame (void)
{
CORE_ADDR sp, old_sp;
char *register_temp;
register_temp = alloca (DUMMY_STACK_SIZE);
old_sp = sp = read_sp ();
if (GDB_TARGET_IS_SPARC64)
{
deprecated_read_register_bytes (REGISTER_BYTE (PC_REGNUM),
®ister_temp[0],
REGISTER_RAW_SIZE (PC_REGNUM) * 7);
deprecated_read_register_bytes (REGISTER_BYTE (PSTATE_REGNUM),
®ister_temp[7 * SPARC_INTREG_SIZE],
REGISTER_RAW_SIZE (PSTATE_REGNUM));
}
else
{
deprecated_read_register_bytes (REGISTER_BYTE (Y_REGNUM),
®ister_temp[0],
REGISTER_RAW_SIZE (Y_REGNUM) * 8);
}
deprecated_read_register_bytes (REGISTER_BYTE (O0_REGNUM),
®ister_temp[8 * SPARC_INTREG_SIZE],
SPARC_INTREG_SIZE * 8);
deprecated_read_register_bytes (REGISTER_BYTE (G0_REGNUM),
®ister_temp[16 * SPARC_INTREG_SIZE],
SPARC_INTREG_SIZE * 8);
if (SPARC_HAS_FPU)
deprecated_read_register_bytes (REGISTER_BYTE (FP0_REGNUM),
®ister_temp[24 * SPARC_INTREG_SIZE],
FP_REGISTER_BYTES);
sp -= DUMMY_STACK_SIZE;
write_sp (sp);
write_memory (sp + DUMMY_REG_SAVE_OFFSET, ®ister_temp[0],
DUMMY_STACK_REG_BUF_SIZE);
if (strcmp (target_shortname, "sim") != 0)
{
if (GDB_TARGET_IS_SPARC64)
{
CORE_ADDR oldfp = read_register (FP_REGNUM);
if (oldfp & 1)
write_register (FP_REGNUM, old_sp - 2047);
else
write_register (FP_REGNUM, old_sp);
}
else
{
write_register (FP_REGNUM, old_sp);
}
write_register (I7_REGNUM, read_pc () - 8);
}
else
{
write_register (G0_REGNUM + 1, read_register (FP_REGNUM));
write_register (G0_REGNUM + 2, old_sp);
write_register (G0_REGNUM + 3, read_pc () - 8);
write_register (FP_REGNUM, old_sp);
}
}
static void sparc_frame_find_saved_regs (struct frame_info *, CORE_ADDR *);
static void
sparc_frame_find_saved_regs (struct frame_info *fi, CORE_ADDR *saved_regs_addr)
{
register int regnum;
CORE_ADDR frame_addr = get_frame_base (fi);
if (!fi)
internal_error (__FILE__, __LINE__,
"Bad frame info struct in FRAME_FIND_SAVED_REGS");
memset (saved_regs_addr, 0, NUM_REGS * sizeof (CORE_ADDR));
if (get_frame_pc (fi) >= (get_frame_extra_info (fi)->bottom
? get_frame_extra_info (fi)->bottom
: read_sp ())
&& get_frame_pc (fi) <= get_frame_base (fi))
{
for (regnum = G1_REGNUM; regnum < G1_REGNUM + 7; regnum++)
saved_regs_addr[regnum] =
frame_addr + (regnum - G0_REGNUM) * SPARC_INTREG_SIZE
- DUMMY_STACK_REG_BUF_SIZE + 16 * SPARC_INTREG_SIZE;
for (regnum = I0_REGNUM; regnum < I0_REGNUM + 8; regnum++)
saved_regs_addr[regnum] =
frame_addr + (regnum - I0_REGNUM) * SPARC_INTREG_SIZE
- DUMMY_STACK_REG_BUF_SIZE + 8 * SPARC_INTREG_SIZE;
if (SPARC_HAS_FPU)
for (regnum = FP0_REGNUM; regnum < FP_MAX_REGNUM; regnum++)
saved_regs_addr[regnum] = frame_addr + (regnum - FP0_REGNUM) * 4
- DUMMY_STACK_REG_BUF_SIZE + 24 * SPARC_INTREG_SIZE;
if (GDB_TARGET_IS_SPARC64)
{
for (regnum = PC_REGNUM; regnum < PC_REGNUM + 7; regnum++)
{
saved_regs_addr[regnum] =
frame_addr + (regnum - PC_REGNUM) * SPARC_INTREG_SIZE
- DUMMY_STACK_REG_BUF_SIZE;
}
saved_regs_addr[PSTATE_REGNUM] =
frame_addr + 8 * SPARC_INTREG_SIZE - DUMMY_STACK_REG_BUF_SIZE;
}
else
for (regnum = Y_REGNUM; regnum < NUM_REGS; regnum++)
saved_regs_addr[regnum] =
frame_addr + (regnum - Y_REGNUM) * SPARC_INTREG_SIZE
- DUMMY_STACK_REG_BUF_SIZE;
frame_addr = (get_frame_extra_info (fi)->bottom
? get_frame_extra_info (fi)->bottom
: read_sp ());
}
else if (get_frame_extra_info (fi)->flat)
{
CORE_ADDR func_start;
find_pc_partial_function (get_frame_pc (fi), NULL, &func_start, NULL);
examine_prologue (func_start, 0, fi, saved_regs_addr);
saved_regs_addr[RP_REGNUM] = get_frame_extra_info (fi)->pc_addr;
saved_regs_addr[I7_REGNUM] = get_frame_extra_info (fi)->fp_addr;
}
else
{
frame_addr = (get_frame_extra_info (fi)->bottom
? get_frame_extra_info (fi)->bottom
: read_sp ());
for (regnum = L0_REGNUM; regnum < L0_REGNUM + 8; regnum++)
saved_regs_addr[regnum] =
(frame_addr + (regnum - L0_REGNUM) * SPARC_INTREG_SIZE
+ FRAME_SAVED_L0);
for (regnum = I0_REGNUM; regnum < I0_REGNUM + 8; regnum++)
saved_regs_addr[regnum] =
(frame_addr + (regnum - I0_REGNUM) * SPARC_INTREG_SIZE
+ FRAME_SAVED_I0);
}
if (get_next_frame (fi))
{
if (get_frame_extra_info (fi)->flat)
{
saved_regs_addr[O7_REGNUM] = get_frame_extra_info (fi)->pc_addr;
}
else
{
CORE_ADDR next_next_frame_addr =
(get_frame_extra_info (get_next_frame (fi))->bottom
? get_frame_extra_info (get_next_frame (fi))->bottom
: read_sp ());
for (regnum = O0_REGNUM; regnum < O0_REGNUM + 8; regnum++)
saved_regs_addr[regnum] =
(next_next_frame_addr
+ (regnum - O0_REGNUM) * SPARC_INTREG_SIZE
+ FRAME_SAVED_I0);
}
}
saved_regs_addr[SP_REGNUM] = get_frame_base (fi);
}
void
sparc_pop_frame (void)
{
register struct frame_info *frame = get_current_frame ();
register CORE_ADDR pc;
CORE_ADDR *fsr;
char *raw_buffer;
int regnum;
fsr = alloca (NUM_REGS * sizeof (CORE_ADDR));
raw_buffer = alloca (REGISTER_BYTES);
sparc_frame_find_saved_regs (frame, &fsr[0]);
if (SPARC_HAS_FPU)
{
if (fsr[FP0_REGNUM])
{
read_memory (fsr[FP0_REGNUM], raw_buffer, FP_REGISTER_BYTES);
deprecated_write_register_bytes (REGISTER_BYTE (FP0_REGNUM),
raw_buffer, FP_REGISTER_BYTES);
}
if (!(GDB_TARGET_IS_SPARC64))
{
if (fsr[FPS_REGNUM])
{
read_memory (fsr[FPS_REGNUM], raw_buffer, SPARC_INTREG_SIZE);
deprecated_write_register_gen (FPS_REGNUM, raw_buffer);
}
if (fsr[CPS_REGNUM])
{
read_memory (fsr[CPS_REGNUM], raw_buffer, SPARC_INTREG_SIZE);
deprecated_write_register_gen (CPS_REGNUM, raw_buffer);
}
}
}
if (fsr[G1_REGNUM])
{
read_memory (fsr[G1_REGNUM], raw_buffer, 7 * SPARC_INTREG_SIZE);
deprecated_write_register_bytes (REGISTER_BYTE (G1_REGNUM), raw_buffer,
7 * SPARC_INTREG_SIZE);
}
if (get_frame_extra_info (frame)->flat)
{
for (regnum = L0_REGNUM; regnum < L0_REGNUM + 8; ++regnum)
if (fsr[regnum])
write_register (regnum, read_memory_integer (fsr[regnum],
SPARC_INTREG_SIZE));
for (regnum = I0_REGNUM; regnum < I0_REGNUM + 8; ++regnum)
if (fsr[regnum])
write_register (regnum, read_memory_integer (fsr[regnum],
SPARC_INTREG_SIZE));
for (regnum = O0_REGNUM; regnum < O0_REGNUM + 6; ++regnum)
if (fsr[regnum])
write_register (regnum, read_memory_integer (fsr[regnum],
SPARC_INTREG_SIZE));
if (fsr[O0_REGNUM + 7])
write_register (O0_REGNUM + 7,
read_memory_integer (fsr[O0_REGNUM + 7],
SPARC_INTREG_SIZE));
write_sp (get_frame_base (frame));
}
else if (fsr[I0_REGNUM])
{
CORE_ADDR sp;
char *reg_temp;
reg_temp = alloca (SPARC_INTREG_SIZE * 16);
read_memory (fsr[I0_REGNUM], raw_buffer, 8 * SPARC_INTREG_SIZE);
sp = fsr[SP_REGNUM];
if (GDB_TARGET_IS_SPARC64 && (sp & 1))
sp += 2047;
read_memory (sp, reg_temp, SPARC_INTREG_SIZE * 16);
deprecated_write_register_bytes (REGISTER_BYTE (O0_REGNUM), raw_buffer,
SPARC_INTREG_SIZE * 8);
deprecated_write_register_bytes (REGISTER_BYTE (L0_REGNUM), reg_temp,
SPARC_INTREG_SIZE * 16);
}
if (!(GDB_TARGET_IS_SPARC64))
if (fsr[PS_REGNUM])
write_register (PS_REGNUM,
read_memory_integer (fsr[PS_REGNUM],
REGISTER_RAW_SIZE (PS_REGNUM)));
if (fsr[Y_REGNUM])
write_register (Y_REGNUM,
read_memory_integer (fsr[Y_REGNUM],
REGISTER_RAW_SIZE (Y_REGNUM)));
if (fsr[PC_REGNUM])
{
write_register (PC_REGNUM,
read_memory_integer (fsr[PC_REGNUM],
REGISTER_RAW_SIZE (PC_REGNUM)));
if (fsr[NPC_REGNUM])
write_register (NPC_REGNUM,
read_memory_integer (fsr[NPC_REGNUM],
REGISTER_RAW_SIZE (NPC_REGNUM)));
}
else if (get_frame_extra_info (frame)->flat)
{
if (get_frame_extra_info (frame)->pc_addr)
pc = PC_ADJUST ((CORE_ADDR)
read_memory_integer (get_frame_extra_info (frame)->pc_addr,
REGISTER_RAW_SIZE (PC_REGNUM)));
else
{
char *buf;
buf = alloca (MAX_REGISTER_RAW_SIZE);
get_saved_register (buf, 0, 0, frame, O7_REGNUM, 0);
pc = PC_ADJUST (extract_address
(buf, REGISTER_RAW_SIZE (O7_REGNUM)));
}
write_register (PC_REGNUM, pc);
write_register (NPC_REGNUM, pc + 4);
}
else if (fsr[I7_REGNUM])
{
pc = PC_ADJUST ((CORE_ADDR) read_memory_integer (fsr[I7_REGNUM],
SPARC_INTREG_SIZE));
write_register (PC_REGNUM, pc);
write_register (NPC_REGNUM, pc + 4);
}
flush_cached_frames ();
}
CORE_ADDR
sparc_pc_adjust (CORE_ADDR pc)
{
unsigned long insn;
char buf[4];
int err;
err = target_read_memory (pc + 8, buf, 4);
insn = extract_unsigned_integer (buf, 4);
if ((err == 0) && (insn & 0xffc00000) == 0)
return pc + 12;
else
return pc + 8;
}
CORE_ADDR
sunos4_skip_trampoline_code (CORE_ADDR pc)
{
unsigned long insn1;
char buf[4];
int err;
err = target_read_memory (pc, buf, 4);
insn1 = extract_unsigned_integer (buf, 4);
if (err == 0 && (insn1 & 0xffc00000) == 0x03000000)
{
unsigned long insn2;
err = target_read_memory (pc + 4, buf, 4);
insn2 = extract_unsigned_integer (buf, 4);
if (err == 0 && (insn2 & 0xffffe000) == 0x81c06000)
{
CORE_ADDR target_pc = (insn1 & 0x3fffff) << 10;
int delta = insn2 & 0x1fff;
if (delta & 0x1000)
delta |= ~0x1fff;
return target_pc + delta;
}
}
return find_solib_trampoline_target (pc);
}
#ifdef USE_PROC_FS
void
supply_gregset (gdb_gregset_t *gregsetp)
{
prgreg_t *regp = (prgreg_t *) gregsetp;
int regi, offset = 0;
if (sizeof (regp[0]) == 8 && SPARC_INTREG_SIZE == 4)
offset = 4;
for (regi = G0_REGNUM; regi <= I7_REGNUM; regi++)
{
supply_register (regi, ((char *) (regp + regi)) + offset);
}
supply_register (PC_REGNUM, ((char *) (regp + R_PC)) + offset);
supply_register (NPC_REGNUM, ((char *) (regp + R_nPC)) + offset);
supply_register (Y_REGNUM, ((char *) (regp + R_Y)) + offset);
if (GDB_TARGET_IS_SPARC64)
{
#ifdef R_CCR
supply_register (CCR_REGNUM, ((char *) (regp + R_CCR)) + offset);
#else
supply_register (CCR_REGNUM, NULL);
#endif
#ifdef R_FPRS
supply_register (FPRS_REGNUM, ((char *) (regp + R_FPRS)) + offset);
#else
supply_register (FPRS_REGNUM, NULL);
#endif
#ifdef R_ASI
supply_register (ASI_REGNUM, ((char *) (regp + R_ASI)) + offset);
#else
supply_register (ASI_REGNUM, NULL);
#endif
}
else
{
#ifdef R_PS
supply_register (PS_REGNUM, ((char *) (regp + R_PS)) + offset);
#else
supply_register (PS_REGNUM, NULL);
#endif
#if !defined (R_WIM) && defined (R_ASI)
#define R_WIM R_ASI
#endif
#if !defined (R_TBR) && defined (R_FPRS)
#define R_TBR R_FPRS
#endif
#if defined (R_WIM)
supply_register (WIM_REGNUM, ((char *) (regp + R_WIM)) + offset);
#else
supply_register (WIM_REGNUM, NULL);
#endif
#if defined (R_TBR)
supply_register (TBR_REGNUM, ((char *) (regp + R_TBR)) + offset);
#else
supply_register (TBR_REGNUM, NULL);
#endif
}
if (GDB_TARGET_IS_SPARC64)
{
supply_register (VER_REGNUM, NULL);
supply_register (TICK_REGNUM, NULL);
supply_register (PIL_REGNUM, NULL);
supply_register (PSTATE_REGNUM, NULL);
supply_register (TSTATE_REGNUM, NULL);
supply_register (TBA_REGNUM, NULL);
supply_register (TL_REGNUM, NULL);
supply_register (TT_REGNUM, NULL);
supply_register (TPC_REGNUM, NULL);
supply_register (TNPC_REGNUM, NULL);
supply_register (WSTATE_REGNUM, NULL);
supply_register (CWP_REGNUM, NULL);
supply_register (CANSAVE_REGNUM, NULL);
supply_register (CANRESTORE_REGNUM, NULL);
supply_register (CLEANWIN_REGNUM, NULL);
supply_register (OTHERWIN_REGNUM, NULL);
supply_register (ASR16_REGNUM, NULL);
supply_register (ASR17_REGNUM, NULL);
supply_register (ASR18_REGNUM, NULL);
supply_register (ASR19_REGNUM, NULL);
supply_register (ASR20_REGNUM, NULL);
supply_register (ASR21_REGNUM, NULL);
supply_register (ASR22_REGNUM, NULL);
supply_register (ASR23_REGNUM, NULL);
supply_register (ASR24_REGNUM, NULL);
supply_register (ASR25_REGNUM, NULL);
supply_register (ASR26_REGNUM, NULL);
supply_register (ASR27_REGNUM, NULL);
supply_register (ASR28_REGNUM, NULL);
supply_register (ASR29_REGNUM, NULL);
supply_register (ASR30_REGNUM, NULL);
supply_register (ASR31_REGNUM, NULL);
supply_register (ICC_REGNUM, NULL);
supply_register (XCC_REGNUM, NULL);
}
else
{
supply_register (CPS_REGNUM, NULL);
}
}
void
fill_gregset (gdb_gregset_t *gregsetp, int regno)
{
prgreg_t *regp = (prgreg_t *) gregsetp;
int regi, offset = 0;
if (sizeof (regp[0]) == 8 && SPARC_INTREG_SIZE == 4)
offset = 4;
for (regi = 0; regi <= R_I7; regi++)
if ((regno == -1) || (regno == regi))
deprecated_read_register_gen (regi, (char *) (regp + regi) + offset);
if ((regno == -1) || (regno == PC_REGNUM))
deprecated_read_register_gen (PC_REGNUM, (char *) (regp + R_PC) + offset);
if ((regno == -1) || (regno == NPC_REGNUM))
deprecated_read_register_gen (NPC_REGNUM, (char *) (regp + R_nPC) + offset);
if ((regno == -1) || (regno == Y_REGNUM))
deprecated_read_register_gen (Y_REGNUM, (char *) (regp + R_Y) + offset);
if (GDB_TARGET_IS_SPARC64)
{
#ifdef R_CCR
if (regno == -1 || regno == CCR_REGNUM)
deprecated_read_register_gen (CCR_REGNUM, ((char *) (regp + R_CCR)) + offset);
#endif
#ifdef R_FPRS
if (regno == -1 || regno == FPRS_REGNUM)
deprecated_read_register_gen (FPRS_REGNUM, ((char *) (regp + R_FPRS)) + offset);
#endif
#ifdef R_ASI
if (regno == -1 || regno == ASI_REGNUM)
deprecated_read_register_gen (ASI_REGNUM, ((char *) (regp + R_ASI)) + offset);
#endif
}
else
{
#ifdef R_PS
if (regno == -1 || regno == PS_REGNUM)
deprecated_read_register_gen (PS_REGNUM, ((char *) (regp + R_PS)) + offset);
#endif
#if !defined (R_WIM) && defined (R_ASI)
#define R_WIM R_ASI
#endif
#if !defined (R_TBR) && defined (R_FPRS)
#define R_TBR R_FPRS
#endif
#if defined (R_WIM)
if (regno == -1 || regno == WIM_REGNUM)
deprecated_read_register_gen (WIM_REGNUM, ((char *) (regp + R_WIM)) + offset);
#else
if (regno == -1 || regno == WIM_REGNUM)
deprecated_read_register_gen (WIM_REGNUM, NULL);
#endif
#if defined (R_TBR)
if (regno == -1 || regno == TBR_REGNUM)
deprecated_read_register_gen (TBR_REGNUM, ((char *) (regp + R_TBR)) + offset);
#else
if (regno == -1 || regno == TBR_REGNUM)
deprecated_read_register_gen (TBR_REGNUM, NULL);
#endif
}
}
void
supply_fpregset (gdb_fpregset_t *fpregsetp)
{
register int regi;
char *from;
if (!SPARC_HAS_FPU)
return;
for (regi = FP0_REGNUM; regi < FP_MAX_REGNUM; regi++)
{
from = (char *) &fpregsetp->pr_fr.pr_regs[regi - FP0_REGNUM];
supply_register (regi, from);
}
if (GDB_TARGET_IS_SPARC64)
{
supply_register (FSR_REGNUM, NULL);
supply_register (FCC0_REGNUM, NULL);
supply_register (FCC1_REGNUM, NULL);
supply_register (FCC2_REGNUM, NULL);
supply_register (FCC3_REGNUM, NULL);
}
else
{
supply_register (FPS_REGNUM, (char *) &(fpregsetp->pr_fsr));
}
}
void
fill_fpregset (gdb_fpregset_t *fpregsetp, int regno)
{
int regi;
char *to;
char *from;
if (!SPARC_HAS_FPU)
return;
for (regi = FP0_REGNUM; regi < FP_MAX_REGNUM; regi++)
{
if ((regno == -1) || (regno == regi))
{
from = (char *) &deprecated_registers[REGISTER_BYTE (regi)];
to = (char *) &fpregsetp->pr_fr.pr_regs[regi - FP0_REGNUM];
memcpy (to, from, REGISTER_RAW_SIZE (regi));
}
}
if (!(GDB_TARGET_IS_SPARC64))
if ((regno == -1) || (regno == FPS_REGNUM))
{
from = (char *)&deprecated_registers[REGISTER_BYTE (FPS_REGNUM)];
to = (char *) &fpregsetp->pr_fsr;
memcpy (to, from, REGISTER_RAW_SIZE (FPS_REGNUM));
}
}
#endif
#ifdef JB_PC
int
get_longjmp_target (CORE_ADDR *pc)
{
CORE_ADDR jb_addr;
#define LONGJMP_TARGET_SIZE 4
char buf[LONGJMP_TARGET_SIZE];
jb_addr = read_register (O0_REGNUM);
if (target_read_memory (jb_addr + JB_PC * JB_ELEMENT_SIZE, buf,
LONGJMP_TARGET_SIZE))
return 0;
*pc = extract_address (buf, LONGJMP_TARGET_SIZE);
return 1;
}
#endif
#ifdef STATIC_TRANSFORM_NAME
char *
sunpro_static_transform_name (char *name)
{
char *p;
if (name[0] == '$')
{
p = strrchr (name, '.');
if (p != NULL)
name = p + 1;
}
return name;
}
#endif
static void dump_ccreg (char *, int);
static void
dump_ccreg (char *reg, int val)
{
printf_unfiltered ("%s:%s,%s,%s,%s", reg,
val & 8 ? "N" : "NN",
val & 4 ? "Z" : "NZ",
val & 2 ? "O" : "NO",
val & 1 ? "C" : "NC");
}
static char *
decode_asi (int val)
{
switch (val)
{
case 4:
return "ASI_NUCLEUS";
case 0x0c:
return "ASI_NUCLEUS_LITTLE";
case 0x10:
return "ASI_AS_IF_USER_PRIMARY";
case 0x11:
return "ASI_AS_IF_USER_SECONDARY";
case 0x18:
return "ASI_AS_IF_USER_PRIMARY_LITTLE";
case 0x19:
return "ASI_AS_IF_USER_SECONDARY_LITTLE";
case 0x80:
return "ASI_PRIMARY";
case 0x81:
return "ASI_SECONDARY";
case 0x82:
return "ASI_PRIMARY_NOFAULT";
case 0x83:
return "ASI_SECONDARY_NOFAULT";
case 0x88:
return "ASI_PRIMARY_LITTLE";
case 0x89:
return "ASI_SECONDARY_LITTLE";
case 0x8a:
return "ASI_PRIMARY_NOFAULT_LITTLE";
case 0x8b:
return "ASI_SECONDARY_NOFAULT_LITTLE";
default:
return NULL;
}
}
static void
sparc_print_register_hook (int regno)
{
ULONGEST val;
if (regno >= FP0_REGNUM && regno < FP0_REGNUM + 32
&& (regno & 1) == 0)
{
char value[16];
if (frame_register_read (deprecated_selected_frame, regno, value)
&& frame_register_read (deprecated_selected_frame, regno + 1, value + 4))
{
printf_unfiltered ("\t");
print_floating (value, builtin_type_double, gdb_stdout);
}
#if 0
if ((regno & 3) == 0)
{
if (frame_register_read (deprecated_selected_frame, regno + 2, value + 8)
&& frame_register_read (deprecated_selected_frame, regno + 3, value + 12))
{
printf_unfiltered ("\t");
print_floating (value, builtin_type_long_double, gdb_stdout);
}
}
#endif
return;
}
#if 0
if (regno >= FP0_REGNUM + 32 && regno < FP_MAX_REGNUM
&& (regno & 1) == 0)
{
char value[16];
if (frame_register_read (deprecated_selected_frame, regno, value)
&& frame_register_read (deprecated_selected_frame, regno + 1, value + 8))
{
printf_unfiltered ("\t");
print_floating (value, builtin_type_long_double, gdb_stdout);
}
return;
}
#endif
#define BITS(n, mask) ((int) (((val) >> (n)) & (mask)))
val = read_register (regno);
if (GDB_TARGET_IS_SPARC64)
switch (regno)
{
case CCR_REGNUM:
printf_unfiltered ("\t");
dump_ccreg ("xcc", val >> 4);
printf_unfiltered (", ");
dump_ccreg ("icc", val & 15);
break;
case FPRS_REGNUM:
printf ("\tfef:%d, du:%d, dl:%d",
BITS (2, 1), BITS (1, 1), BITS (0, 1));
break;
case FSR_REGNUM:
{
static char *fcc[4] =
{"=", "<", ">", "?"};
static char *rd[4] =
{"N", "0", "+", "-"};
printf_filtered ("\t0:%s, 1:%s, 2:%s, 3:%s, rd:%s, tem:%d, ",
fcc[BITS (10, 3)], fcc[BITS (32, 3)],
fcc[BITS (34, 3)], fcc[BITS (36, 3)],
rd[BITS (30, 3)], BITS (23, 31));
printf_filtered ("ns:%d, ver:%d, ftt:%d, qne:%d, aexc:%d, cexc:%d",
BITS (22, 1), BITS (17, 7), BITS (14, 7),
BITS (13, 1), BITS (5, 31), BITS (0, 31));
break;
}
case ASI_REGNUM:
{
char *asi = decode_asi (val);
if (asi != NULL)
printf ("\t%s", asi);
break;
}
case VER_REGNUM:
printf ("\tmanuf:%d, impl:%d, mask:%d, maxtl:%d, maxwin:%d",
BITS (48, 0xffff), BITS (32, 0xffff),
BITS (24, 0xff), BITS (8, 0xff), BITS (0, 31));
break;
case PSTATE_REGNUM:
{
static char *mm[4] =
{"tso", "pso", "rso", "?"};
printf_filtered ("\tcle:%d, tle:%d, mm:%s, red:%d, ",
BITS (9, 1), BITS (8, 1),
mm[BITS (6, 3)], BITS (5, 1));
printf_filtered ("pef:%d, am:%d, priv:%d, ie:%d, ag:%d",
BITS (4, 1), BITS (3, 1), BITS (2, 1),
BITS (1, 1), BITS (0, 1));
break;
}
case TSTATE_REGNUM:
break;
case TT_REGNUM:
break;
case TPC_REGNUM:
break;
case TNPC_REGNUM:
break;
case WSTATE_REGNUM:
printf ("\tother:%d, normal:%d", BITS (3, 7), BITS (0, 7));
break;
case CWP_REGNUM:
printf ("\t%d", BITS (0, 31));
break;
case CANSAVE_REGNUM:
printf ("\t%-2d before spill", BITS (0, 31));
break;
case CANRESTORE_REGNUM:
printf ("\t%-2d before fill", BITS (0, 31));
break;
case CLEANWIN_REGNUM:
printf ("\t%-2d before clean", BITS (0, 31));
break;
case OTHERWIN_REGNUM:
printf ("\t%d", BITS (0, 31));
break;
}
else
switch (regno)
{
case PS_REGNUM:
printf ("\ticc:%c%c%c%c, pil:%d, s:%d, ps:%d, et:%d, cwp:%d",
BITS (23, 1) ? 'N' : '-', BITS (22, 1) ? 'Z' : '-',
BITS (21, 1) ? 'V' : '-', BITS (20, 1) ? 'C' : '-',
BITS (8, 15), BITS (7, 1), BITS (6, 1), BITS (5, 1),
BITS (0, 31));
break;
case FPS_REGNUM:
{
static char *fcc[4] =
{"=", "<", ">", "?"};
static char *rd[4] =
{"N", "0", "+", "-"};
printf ("\trd:%s, tem:%d, ns:%d, ver:%d, ftt:%d, qne:%d, "
"fcc:%s, aexc:%d, cexc:%d",
rd[BITS (30, 3)], BITS (23, 31), BITS (22, 1), BITS (17, 7),
BITS (14, 7), BITS (13, 1), fcc[BITS (10, 3)], BITS (5, 31),
BITS (0, 31));
break;
}
}
#undef BITS
}
static void
sparc_print_registers (struct gdbarch *gdbarch,
struct ui_file *file,
struct frame_info *frame,
int regnum, int print_all,
void (*print_register_hook) (int))
{
int i;
const int numregs = NUM_REGS + NUM_PSEUDO_REGS;
char *raw_buffer = alloca (MAX_REGISTER_RAW_SIZE);
char *virtual_buffer = alloca (MAX_REGISTER_VIRTUAL_SIZE);
for (i = 0; i < numregs; i++)
{
if (regnum == -1)
{
if (!print_all)
{
if (TYPE_CODE (REGISTER_VIRTUAL_TYPE (i)) == TYPE_CODE_FLT)
continue;
if (TYPE_VECTOR (REGISTER_VIRTUAL_TYPE (i)))
continue;
}
}
else
{
if (i != regnum)
continue;
}
if (REGISTER_NAME (i) == NULL || *(REGISTER_NAME (i)) == '\0')
continue;
fputs_filtered (REGISTER_NAME (i), file);
print_spaces_filtered (15 - strlen (REGISTER_NAME (i)), file);
if (! frame_register_read (frame, i, raw_buffer))
{
fprintf_filtered (file, "*value not available*\n");
continue;
}
if (REGISTER_CONVERTIBLE (i))
{
REGISTER_CONVERT_TO_VIRTUAL (i, REGISTER_VIRTUAL_TYPE (i),
raw_buffer, virtual_buffer);
}
else
{
memcpy (virtual_buffer, raw_buffer,
REGISTER_VIRTUAL_SIZE (i));
}
if (TYPE_CODE (REGISTER_VIRTUAL_TYPE (i)) == TYPE_CODE_FLT)
{
int j;
val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, 0,
file, 0, 1, 0, Val_pretty_default);
fprintf_filtered (file, "\t(raw 0x");
for (j = 0; j < REGISTER_RAW_SIZE (i); j++)
{
int idx;
if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
idx = j;
else
idx = REGISTER_RAW_SIZE (i) - 1 - j;
fprintf_filtered (file, "%02x", (unsigned char) raw_buffer[idx]);
}
fprintf_filtered (file, ")");
}
else
{
val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, 0,
file, 'x', 1, 0, Val_pretty_default);
if (TYPE_VECTOR (REGISTER_VIRTUAL_TYPE (i)) == 0)
{
fprintf_filtered (file, "\t");
val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, 0,
file, 0, 1, 0, Val_pretty_default);
}
}
if (print_register_hook != NULL)
print_register_hook (i);
fprintf_filtered (file, "\n");
}
}
static void
sparc_print_registers_info (struct gdbarch *gdbarch,
struct ui_file *file,
struct frame_info *frame,
int regnum, int print_all)
{
sparc_print_registers (gdbarch, file, frame, regnum, print_all,
sparc_print_register_hook);
}
void
sparc_do_registers_info (int regnum, int all)
{
sparc_print_registers_info (current_gdbarch, gdb_stdout, deprecated_selected_frame,
regnum, all);
}
static void
sparclet_print_registers_info (struct gdbarch *gdbarch,
struct ui_file *file,
struct frame_info *frame,
int regnum, int print_all)
{
sparc_print_registers (gdbarch, file, frame, regnum, print_all, NULL);
}
void
sparclet_do_registers_info (int regnum, int all)
{
sparclet_print_registers_info (current_gdbarch, gdb_stdout,
deprecated_selected_frame, regnum, all);
}
int
gdb_print_insn_sparc (bfd_vma memaddr, disassemble_info *info)
{
info->mach = TARGET_ARCHITECTURE->mach;
return print_insn_sparc (memaddr, info);
}
CORE_ADDR
sparc32_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
int struct_return, CORE_ADDR struct_addr)
{
int i, j, oregnum;
int accumulate_size = 0;
struct sparc_arg
{
char *contents;
int len;
int offset;
};
struct sparc_arg *sparc_args =
(struct sparc_arg *) alloca (nargs * sizeof (struct sparc_arg));
struct sparc_arg *m_arg;
for (i = 0, m_arg = sparc_args; i < nargs; i++, m_arg++)
{
struct value *arg = args[i];
struct type *arg_type = check_typedef (VALUE_TYPE (arg));
switch (TYPE_CODE (arg_type))
{
case TYPE_CODE_INT:
case TYPE_CODE_BOOL:
case TYPE_CODE_CHAR:
case TYPE_CODE_RANGE:
case TYPE_CODE_ENUM:
if (TYPE_LENGTH (arg_type) < TYPE_LENGTH (builtin_type_long))
{
arg_type = builtin_type_long;
arg = value_cast (arg_type, arg);
}
break;
default:
break;
}
m_arg->len = TYPE_LENGTH (arg_type);
m_arg->offset = accumulate_size;
accumulate_size = (accumulate_size + m_arg->len + 3) & ~3;
m_arg->contents = VALUE_CONTENTS (arg);
}
accumulate_size += CALL_DUMMY_STACK_ADJUST;
sp = ((sp - accumulate_size) & ~7) + CALL_DUMMY_STACK_ADJUST;
for (i = 0, oregnum = 0, m_arg = sparc_args;
i < nargs;
i++, m_arg++)
{
write_memory (sp + m_arg->offset, m_arg->contents, m_arg->len);
for (j = 0;
j < m_arg->len && oregnum < 6;
j += SPARC_INTREG_SIZE, oregnum++)
deprecated_write_register_gen (O0_REGNUM + oregnum, m_arg->contents + j);
}
return sp;
}
void
sparc32_extract_return_value (struct type *type, char *regbuf, char *valbuf)
{
int typelen = TYPE_LENGTH (type);
int regsize = REGISTER_RAW_SIZE (O0_REGNUM);
if (TYPE_CODE (type) == TYPE_CODE_FLT && SPARC_HAS_FPU)
memcpy (valbuf, ®buf[REGISTER_BYTE (FP0_REGNUM)], typelen);
else
memcpy (valbuf,
®buf[O0_REGNUM * regsize +
(typelen >= regsize
|| TARGET_BYTE_ORDER == BFD_ENDIAN_LITTLE ? 0
: regsize - typelen)],
typelen);
}
void
sparc_store_return_value (struct type *type, char *valbuf)
{
int regno;
char *buffer;
buffer = alloca (MAX_REGISTER_RAW_SIZE);
if (TYPE_CODE (type) == TYPE_CODE_FLT && SPARC_HAS_FPU)
regno = FP0_REGNUM;
else
regno = O0_REGNUM;
if (TYPE_LENGTH (type) < REGISTER_RAW_SIZE (regno))
{
memset (buffer, 0, REGISTER_RAW_SIZE (regno));
memcpy (buffer + REGISTER_RAW_SIZE (regno) - TYPE_LENGTH (type), valbuf,
TYPE_LENGTH (type));
deprecated_write_register_gen (regno, buffer);
}
else
deprecated_write_register_bytes (REGISTER_BYTE (regno), valbuf,
TYPE_LENGTH (type));
}
extern void
sparclet_store_return_value (struct type *type, char *valbuf)
{
deprecated_write_register_bytes (REGISTER_BYTE (O0_REGNUM), valbuf,
TYPE_LENGTH (type));
}
#ifndef CALL_DUMMY_CALL_OFFSET
#define CALL_DUMMY_CALL_OFFSET \
(gdbarch_tdep (current_gdbarch)->call_dummy_call_offset)
#endif
void
sparc_fix_call_dummy (char *dummy, CORE_ADDR pc, CORE_ADDR fun,
struct type *value_type, int using_gcc)
{
int i;
store_unsigned_integer (dummy + CALL_DUMMY_CALL_OFFSET, 4,
(0x40000000
| (((fun - (pc + CALL_DUMMY_CALL_OFFSET)) >> 2)
& 0x3fffffff)));
if (TYPE_CODE (value_type) == TYPE_CODE_STRUCT
|| TYPE_CODE (value_type) == TYPE_CODE_UNION)
{
store_unsigned_integer (dummy + CALL_DUMMY_CALL_OFFSET + 8, 4,
TYPE_LENGTH (value_type) & 0x1fff);
set_gdbarch_call_dummy_breakpoint_offset (current_gdbarch, 0x30);
}
else
set_gdbarch_call_dummy_breakpoint_offset (current_gdbarch, 0x2c);
if (!(GDB_TARGET_IS_SPARC64))
{
if (strcmp (target_shortname, "sim") != 0)
{
for (i = 0; i < 4; i++)
store_unsigned_integer (dummy + (i * 4), 4, 0x01000000);
}
}
if (bi_endian)
{
for (i = 0; i < CALL_DUMMY_LENGTH; i += 4)
{
char tmp = dummy[i];
dummy[i] = dummy[i + 3];
dummy[i + 3] = tmp;
tmp = dummy[i + 1];
dummy[i + 1] = dummy[i + 2];
dummy[i + 2] = tmp;
}
}
}
static int
sparc_target_architecture_hook (const bfd_arch_info_type *ap)
{
int i, j;
if (ap->mach == bfd_mach_sparc_sparclite_le)
{
target_byte_order = BFD_ENDIAN_LITTLE;
bi_endian = 1;
}
else
bi_endian = 0;
return 1;
}
static struct gdbarch * sparc_gdbarch_init (struct gdbarch_info info,
struct gdbarch_list *arches);
static void sparc_dump_tdep (struct gdbarch *, struct ui_file *);
void
_initialize_sparc_tdep (void)
{
gdbarch_register (bfd_arch_sparc, sparc_gdbarch_init, sparc_dump_tdep);
tm_print_insn = gdb_print_insn_sparc;
tm_print_insn_info.mach = TM_PRINT_INSN_MACH;
target_architecture_hook = sparc_target_architecture_hook;
}
CORE_ADDR
sparc64_read_sp (void)
{
CORE_ADDR sp = read_register (SP_REGNUM);
if (sp & 1)
sp += 2047;
return sp;
}
CORE_ADDR
sparc64_read_fp (void)
{
CORE_ADDR fp = read_register (FP_REGNUM);
if (fp & 1)
fp += 2047;
return fp;
}
void
sparc64_write_sp (CORE_ADDR val)
{
CORE_ADDR oldsp = read_register (SP_REGNUM);
if (oldsp & 1)
write_register (SP_REGNUM, val - 2047);
else
write_register (SP_REGNUM, val);
}
CORE_ADDR
sparc64_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
int struct_return, CORE_ADDR struct_retaddr)
{
int i, j, register_counter = 0;
CORE_ADDR tempsp;
struct type *sparc_intreg_type =
TYPE_LENGTH (builtin_type_long) == SPARC_INTREG_SIZE ?
builtin_type_long : builtin_type_long_long;
sp = (sp & ~(((unsigned long) SPARC_INTREG_SIZE) - 1UL));
for (i = nargs - 1; i >= 0; i--)
{
int len = TYPE_LENGTH (check_typedef (VALUE_TYPE (args[i])));
struct value *copyarg = args[i];
int copylen = len;
if (copylen < SPARC_INTREG_SIZE)
{
copyarg = value_cast (sparc_intreg_type, copyarg);
copylen = SPARC_INTREG_SIZE;
}
sp -= copylen;
}
sp = sp & ~7;
tempsp = sp;
if (struct_return)
write_register (O0_REGNUM + register_counter++, struct_retaddr);
for (i = 0; i < nargs; i++)
{
int len = TYPE_LENGTH (check_typedef (VALUE_TYPE (args[i])));
struct value *copyarg = args[i];
enum type_code typecode = TYPE_CODE (VALUE_TYPE (args[i]));
int copylen = len;
if (typecode == TYPE_CODE_INT ||
typecode == TYPE_CODE_BOOL ||
typecode == TYPE_CODE_CHAR ||
typecode == TYPE_CODE_RANGE ||
typecode == TYPE_CODE_ENUM)
if (len < SPARC_INTREG_SIZE)
{
copyarg = value_cast (sparc_intreg_type, copyarg);
copylen = SPARC_INTREG_SIZE;
}
write_memory (tempsp, VALUE_CONTENTS (copyarg), copylen);
tempsp += copylen;
if (typecode == TYPE_CODE_FLT && SPARC_HAS_FPU)
{
if (register_counter < 16)
{
int fpreg;
switch (len) {
case 4:
fpreg = FP0_REGNUM + 2 * register_counter + 1;
register_counter += 1;
break;
case 8:
fpreg = FP0_REGNUM + 2 * register_counter;
register_counter += 1;
break;
case 16:
fpreg = FP0_REGNUM + 2 * register_counter;
register_counter += 2;
break;
default:
internal_error (__FILE__, __LINE__, "bad switch");
}
deprecated_write_register_bytes (REGISTER_BYTE (fpreg),
VALUE_CONTENTS (args[i]),
len);
}
}
else
{
for (j = 0;
j < len && register_counter < 6;
j += SPARC_INTREG_SIZE)
{
int oreg = O0_REGNUM + register_counter;
deprecated_write_register_gen (oreg, VALUE_CONTENTS (copyarg) + j);
register_counter += 1;
}
}
}
return sp;
}
void
sp64_extract_return_value (struct type *type, char *regbuf, char *valbuf,
int bitoffset)
{
int typelen = TYPE_LENGTH (type);
int regsize = REGISTER_RAW_SIZE (O0_REGNUM);
if (TYPE_CODE (type) == TYPE_CODE_FLT && SPARC_HAS_FPU)
{
memcpy (valbuf, ®buf[REGISTER_BYTE (FP0_REGNUM)], typelen);
return;
}
if (TYPE_CODE (type) != TYPE_CODE_STRUCT
|| (TYPE_LENGTH (type) > 32))
{
memcpy (valbuf,
®buf[O0_REGNUM * regsize +
(typelen >= regsize ? 0 : regsize - typelen)],
typelen);
return;
}
else
{
char *o0 = ®buf[O0_REGNUM * regsize];
char *f0 = ®buf[FP0_REGNUM * regsize];
int x;
for (x = 0; x < TYPE_NFIELDS (type); x++)
{
struct field *f = &TYPE_FIELDS (type)[x];
int whichreg = (f->loc.bitpos + bitoffset) / 32;
int remainder = ((f->loc.bitpos + bitoffset) % 32) / 8;
int where = (f->loc.bitpos + bitoffset) / 8;
int size = TYPE_LENGTH (f->type);
int typecode = TYPE_CODE (f->type);
if (typecode == TYPE_CODE_STRUCT)
{
sp64_extract_return_value (f->type,
regbuf,
valbuf,
bitoffset + f->loc.bitpos);
}
else if (typecode == TYPE_CODE_FLT && SPARC_HAS_FPU)
{
memcpy (valbuf + where, &f0[whichreg * 4] + remainder, size);
}
else
{
memcpy (valbuf + where, &o0[whichreg * 4] + remainder, size);
}
}
}
}
extern void
sparc64_extract_return_value (struct type *type, char *regbuf, char *valbuf)
{
sp64_extract_return_value (type, regbuf, valbuf, 0);
}
extern void
sparclet_extract_return_value (struct type *type,
char *regbuf,
char *valbuf)
{
regbuf += REGISTER_RAW_SIZE (O0_REGNUM) * 8;
if (TYPE_LENGTH (type) < REGISTER_RAW_SIZE (O0_REGNUM))
regbuf += REGISTER_RAW_SIZE (O0_REGNUM) - TYPE_LENGTH (type);
memcpy ((void *) valbuf, regbuf, TYPE_LENGTH (type));
}
extern CORE_ADDR
sparc32_stack_align (CORE_ADDR addr)
{
return ((addr + 7) & -8);
}
extern CORE_ADDR
sparc64_stack_align (CORE_ADDR addr)
{
return ((addr + 15) & -16);
}
extern void
sparc_print_extra_frame_info (struct frame_info *fi)
{
if (fi && get_frame_extra_info (fi) && get_frame_extra_info (fi)->flat)
printf_filtered (" flat, pc saved at 0x%s, fp saved at 0x%s\n",
paddr_nz (get_frame_extra_info (fi)->pc_addr),
paddr_nz (get_frame_extra_info (fi)->fp_addr));
}
static const char *
sparc32_register_name (int regno)
{
static char *register_names[] =
{ "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7",
"o0", "o1", "o2", "o3", "o4", "o5", "sp", "o7",
"l0", "l1", "l2", "l3", "l4", "l5", "l6", "l7",
"i0", "i1", "i2", "i3", "i4", "i5", "fp", "i7",
"f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7",
"f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15",
"f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",
"f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31",
"y", "psr", "wim", "tbr", "pc", "npc", "fpsr", "cpsr"
};
if (regno < 0 ||
regno >= (sizeof (register_names) / sizeof (register_names[0])))
return NULL;
else
return register_names[regno];
}
static const char *
sparc64_register_name (int regno)
{
static char *register_names[] =
{ "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7",
"o0", "o1", "o2", "o3", "o4", "o5", "sp", "o7",
"l0", "l1", "l2", "l3", "l4", "l5", "l6", "l7",
"i0", "i1", "i2", "i3", "i4", "i5", "fp", "i7",
"f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7",
"f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15",
"f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",
"f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31",
"f32", "f34", "f36", "f38", "f40", "f42", "f44", "f46",
"f48", "f50", "f52", "f54", "f56", "f58", "f60", "f62",
"pc", "npc", "ccr", "fsr", "fprs", "y", "asi", "ver",
"tick", "pil", "pstate", "tstate", "tba", "tl", "tt", "tpc",
"tnpc", "wstate", "cwp", "cansave", "canrestore", "cleanwin", "otherwin",
"asr16", "asr17", "asr18", "asr19", "asr20", "asr21", "asr22", "asr23",
"asr24", "asr25", "asr26", "asr27", "asr28", "asr29", "asr30", "asr31",
"icc", "xcc", "fcc0", "fcc1", "fcc2", "fcc3"
};
if (regno < 0 ||
regno >= (sizeof (register_names) / sizeof (register_names[0])))
return NULL;
else
return register_names[regno];
}
static const char *
sparclite_register_name (int regno)
{
static char *register_names[] =
{ "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7",
"o0", "o1", "o2", "o3", "o4", "o5", "sp", "o7",
"l0", "l1", "l2", "l3", "l4", "l5", "l6", "l7",
"i0", "i1", "i2", "i3", "i4", "i5", "fp", "i7",
"f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7",
"f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15",
"f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",
"f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31",
"y", "psr", "wim", "tbr", "pc", "npc", "fpsr", "cpsr",
"dia1", "dia2", "dda1", "dda2", "ddv1", "ddv2", "dcr", "dsr"
};
if (regno < 0 ||
regno >= (sizeof (register_names) / sizeof (register_names[0])))
return NULL;
else
return register_names[regno];
}
static const char *
sparclet_register_name (int regno)
{
static char *register_names[] =
{ "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7",
"o0", "o1", "o2", "o3", "o4", "o5", "sp", "o7",
"l0", "l1", "l2", "l3", "l4", "l5", "l6", "l7",
"i0", "i1", "i2", "i3", "i4", "i5", "fp", "i7",
"", "", "", "", "", "", "", "",
"", "", "", "", "", "", "", "",
"", "", "", "", "", "", "", "",
"", "", "", "", "", "", "", "",
"y", "psr", "wim", "tbr", "pc", "npc", "", "",
"ccsr", "ccpr", "cccrcr", "ccor", "ccobr", "ccibr", "ccir", "",
"asr1", "", "asr17", "asr18", "", "asr20", "asr21", "asr22"
#if 0
"awr0", "awr1", "awr2", "awr3", "awr4", "awr5", "awr6", "awr7",
"awr8", "awr9", "awr10", "awr11", "awr12", "awr13", "awr14", "awr15",
"awr16", "awr17", "awr18", "awr19", "awr20", "awr21", "awr22", "awr23",
"awr24", "awr25", "awr26", "awr27", "awr28", "awr29", "awr30", "awr31",
"apsr"
#endif
};
if (regno < 0 ||
regno >= (sizeof (register_names) / sizeof (register_names[0])))
return NULL;
else
return register_names[regno];
}
CORE_ADDR
sparc_push_return_address (CORE_ADDR pc_unused, CORE_ADDR sp)
{
if (CALL_DUMMY_LOCATION == AT_ENTRY_POINT)
{
write_register (O7_REGNUM,
CALL_DUMMY_ADDRESS () - 8);
}
return sp;
}
static int
sparc64_use_struct_convention (int gcc_p, struct type *type)
{
return (TYPE_LENGTH (type) > 32);
}
static void
sparc32_store_struct_return (CORE_ADDR addr, CORE_ADDR sp)
{
char *val;
CORE_ADDR o7;
val = alloca (SPARC_INTREG_SIZE);
store_unsigned_integer (val, SPARC_INTREG_SIZE, addr);
write_memory (sp + (16 * SPARC_INTREG_SIZE), val, SPARC_INTREG_SIZE);
if (CALL_DUMMY_LOCATION == AT_ENTRY_POINT)
{
o7 = read_register (O7_REGNUM);
write_register (O7_REGNUM, o7 - 4);
}
}
static void
sparc64_store_struct_return (CORE_ADDR addr, CORE_ADDR sp)
{
target_write_memory (sp + (16 * SPARC_INTREG_SIZE),
(char *) &addr, SPARC_INTREG_SIZE);
#if 0
if (CALL_DUMMY_LOCATION == AT_ENTRY_POINT)
{
write_register (O7_REGNUM, read_register (O7_REGNUM) - 4);
}
#endif
}
static struct type *
sparc32_register_virtual_type (int regno)
{
if (regno == PC_REGNUM ||
regno == FP_REGNUM ||
regno == SP_REGNUM)
return builtin_type_unsigned_int;
if (regno < 32)
return builtin_type_int;
if (regno < 64)
return builtin_type_float;
return builtin_type_int;
}
static struct type *
sparc64_register_virtual_type (int regno)
{
if (regno == PC_REGNUM ||
regno == FP_REGNUM ||
regno == SP_REGNUM)
return builtin_type_unsigned_long_long;
if (regno < 32)
return builtin_type_long_long;
if (regno < 64)
return builtin_type_float;
if (regno < 80)
return builtin_type_double;
return builtin_type_long_long;
}
static int
sparc32_register_size (int regno)
{
return 4;
}
static int
sparc64_register_size (int regno)
{
return (regno < 32 ? 8 : regno < 64 ? 4 : 8);
}
static int
sparc32_register_byte (int regno)
{
return (regno * 4);
}
static int
sparc64_register_byte (int regno)
{
if (regno < 32)
return regno * 8;
else if (regno < 64)
return 32 * 8 + (regno - 32) * 4;
else if (regno < 80)
return 32 * 8 + 32 * 4 + (regno - 64) * 8;
else
return 64 * 8 + (regno - 80) * 8;
}
static CORE_ADDR
sparc_saved_pc_after_call (struct frame_info *fi)
{
return sparc_pc_adjust (read_register (RP_REGNUM));
}
static void
sparc_convert_to_virtual (int regnum, struct type *type, char *from, char *to)
{
}
static void
sparc_convert_to_raw (struct type *type, int regnum, char *from, char *to)
{
}
static void
sparc_frame_init_saved_regs (struct frame_info *fi_ignored)
{
}
static void
sparc_gdbarch_fix_call_dummy (char *dummy,
CORE_ADDR pc,
CORE_ADDR fun,
int nargs,
struct value **args,
struct type *type,
int gcc_p)
{
if (CALL_DUMMY_LOCATION == ON_STACK)
sparc_fix_call_dummy (dummy, pc, fun, type, gcc_p);
}
static CORE_ADDR
sparc_call_dummy_address (void)
{
return (CALL_DUMMY_START_OFFSET) + CALL_DUMMY_BREAKPOINT_OFFSET;
}
int
sparc_y_regnum (void)
{
return gdbarch_tdep (current_gdbarch)->y_regnum;
}
int
sparc_reg_struct_has_addr (int gcc_p, struct type *type)
{
if (GDB_TARGET_IS_SPARC64)
return (TYPE_LENGTH (type) > 32);
else
return (gcc_p != 1);
}
int
sparc_intreg_size (void)
{
return SPARC_INTREG_SIZE;
}
static int
sparc_return_value_on_stack (struct type *type)
{
if (TYPE_CODE (type) == TYPE_CODE_FLT &&
TYPE_LENGTH (type) > 8)
return 1;
else
return 0;
}
#define SPARC32_CALL_DUMMY_ON_STACK
#define SPARC_SP_REGNUM 14
#define SPARC_FP_REGNUM 30
#define SPARC_FP0_REGNUM 32
#define SPARC32_NPC_REGNUM 69
#define SPARC32_PC_REGNUM 68
#define SPARC32_Y_REGNUM 64
#define SPARC64_PC_REGNUM 80
#define SPARC64_NPC_REGNUM 81
#define SPARC64_Y_REGNUM 85
static struct gdbarch *
sparc_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
{
struct gdbarch *gdbarch;
struct gdbarch_tdep *tdep;
static LONGEST call_dummy_32[] =
{ 0xbc100001, 0x9de38000, 0xbc100002, 0xbe100003,
0xda03a058, 0xd803a054, 0xd603a050, 0xd403a04c,
0xd203a048, 0x40000000, 0xd003a044, 0x01000000,
0x91d02001, 0x01000000
};
static LONGEST call_dummy_64[] =
{ 0x9de3bec0fd3fa7f7LL, 0xf93fa7eff53fa7e7LL,
0xf13fa7dfed3fa7d7LL, 0xe93fa7cfe53fa7c7LL,
0xe13fa7bfdd3fa7b7LL, 0xd93fa7afd53fa7a7LL,
0xd13fa79fcd3fa797LL, 0xc93fa78fc53fa787LL,
0xc13fa77fcc3fa777LL, 0xc83fa76fc43fa767LL,
0xc03fa75ffc3fa757LL, 0xf83fa74ff43fa747LL,
0xf03fa73f01000000LL, 0x0100000001000000LL,
0x0100000091580000LL, 0xd027a72b93500000LL,
0xd027a72791480000LL, 0xd027a72391400000LL,
0xd027a71fda5ba8a7LL, 0xd85ba89fd65ba897LL,
0xd45ba88fd25ba887LL, 0x9fc02000d05ba87fLL,
0x0100000091d02001LL, 0x0100000001000000LL
};
static LONGEST call_dummy_nil[] = {0};
if (info.abfd != NULL
&& info.osabi == GDB_OSABI_UNKNOWN)
{
if (bfd_get_flavour (info.abfd) == bfd_target_elf_flavour)
info.osabi = GDB_OSABI_SOLARIS;
}
arches = gdbarch_list_lookup_by_info (arches, &info);
if (arches != NULL)
return arches->gdbarch;
if (info.bfd_arch_info->arch != bfd_arch_sparc)
return NULL;
tdep = (struct gdbarch_tdep *) xmalloc (sizeof (struct gdbarch_tdep));
gdbarch = gdbarch_alloc (&info, tdep);
set_gdbarch_believe_pcc_promotion (gdbarch, 1);
set_gdbarch_breakpoint_from_pc (gdbarch, memory_breakpoint_from_pc);
set_gdbarch_call_dummy_breakpoint_offset_p (gdbarch, 1);
set_gdbarch_call_dummy_p (gdbarch, 1);
set_gdbarch_call_dummy_stack_adjust_p (gdbarch, 1);
set_gdbarch_decr_pc_after_break (gdbarch, 0);
set_gdbarch_double_bit (gdbarch, 8 * TARGET_CHAR_BIT);
set_gdbarch_deprecated_extract_struct_value_address (gdbarch, sparc_extract_struct_value_address);
set_gdbarch_fix_call_dummy (gdbarch, sparc_gdbarch_fix_call_dummy);
set_gdbarch_float_bit (gdbarch, 4 * TARGET_CHAR_BIT);
set_gdbarch_fp_regnum (gdbarch, SPARC_FP_REGNUM);
set_gdbarch_fp0_regnum (gdbarch, SPARC_FP0_REGNUM);
set_gdbarch_frame_chain (gdbarch, sparc_frame_chain);
set_gdbarch_frame_init_saved_regs (gdbarch, sparc_frame_init_saved_regs);
set_gdbarch_frame_num_args (gdbarch, frame_num_args_unknown);
set_gdbarch_frame_saved_pc (gdbarch, sparc_frame_saved_pc);
set_gdbarch_frameless_function_invocation (gdbarch,
frameless_look_for_prologue);
set_gdbarch_get_saved_register (gdbarch, sparc_get_saved_register);
set_gdbarch_init_extra_frame_info (gdbarch, sparc_init_extra_frame_info);
set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
set_gdbarch_int_bit (gdbarch, 4 * TARGET_CHAR_BIT);
set_gdbarch_long_double_bit (gdbarch, 16 * TARGET_CHAR_BIT);
set_gdbarch_long_long_bit (gdbarch, 8 * TARGET_CHAR_BIT);
set_gdbarch_max_register_raw_size (gdbarch, 8);
set_gdbarch_max_register_virtual_size (gdbarch, 8);
set_gdbarch_pop_frame (gdbarch, sparc_pop_frame);
set_gdbarch_push_return_address (gdbarch, sparc_push_return_address);
set_gdbarch_push_dummy_frame (gdbarch, sparc_push_dummy_frame);
set_gdbarch_read_pc (gdbarch, generic_target_read_pc);
set_gdbarch_register_convert_to_raw (gdbarch, sparc_convert_to_raw);
set_gdbarch_register_convert_to_virtual (gdbarch,
sparc_convert_to_virtual);
set_gdbarch_register_convertible (gdbarch,
generic_register_convertible_not);
set_gdbarch_reg_struct_has_addr (gdbarch, sparc_reg_struct_has_addr);
set_gdbarch_return_value_on_stack (gdbarch, sparc_return_value_on_stack);
set_gdbarch_saved_pc_after_call (gdbarch, sparc_saved_pc_after_call);
set_gdbarch_prologue_frameless_p (gdbarch, sparc_prologue_frameless_p);
set_gdbarch_short_bit (gdbarch, 2 * TARGET_CHAR_BIT);
set_gdbarch_skip_prologue (gdbarch, sparc_skip_prologue);
set_gdbarch_sp_regnum (gdbarch, SPARC_SP_REGNUM);
set_gdbarch_deprecated_use_generic_dummy_frames (gdbarch, 0);
set_gdbarch_write_pc (gdbarch, generic_target_write_pc);
switch (info.bfd_arch_info->mach)
{
case bfd_mach_sparc:
case bfd_mach_sparc_sparclet:
case bfd_mach_sparc_sparclite:
case bfd_mach_sparc_v8plus:
case bfd_mach_sparc_v8plusa:
case bfd_mach_sparc_sparclite_le:
#ifdef SPARC32_CALL_DUMMY_ON_STACK
set_gdbarch_deprecated_pc_in_call_dummy (gdbarch, deprecated_pc_in_call_dummy_on_stack);
set_gdbarch_call_dummy_address (gdbarch, sparc_call_dummy_address);
set_gdbarch_call_dummy_breakpoint_offset (gdbarch, 0x30);
set_gdbarch_call_dummy_length (gdbarch, 0x38);
set_gdbarch_call_dummy_location (gdbarch, ON_STACK);
set_gdbarch_call_dummy_words (gdbarch, call_dummy_32);
#else
set_gdbarch_deprecated_pc_in_call_dummy (gdbarch, deprecated_pc_in_call_dummy_at_entry_point);
set_gdbarch_call_dummy_address (gdbarch, entry_point_address);
set_gdbarch_call_dummy_breakpoint_offset (gdbarch, 0);
set_gdbarch_call_dummy_length (gdbarch, 0);
set_gdbarch_call_dummy_words (gdbarch, call_dummy_nil);
#endif
set_gdbarch_call_dummy_stack_adjust (gdbarch, 68);
set_gdbarch_call_dummy_start_offset (gdbarch, 0);
set_gdbarch_frame_args_skip (gdbarch, 68);
set_gdbarch_function_start_offset (gdbarch, 0);
set_gdbarch_long_bit (gdbarch, 4 * TARGET_CHAR_BIT);
set_gdbarch_npc_regnum (gdbarch, SPARC32_NPC_REGNUM);
set_gdbarch_pc_regnum (gdbarch, SPARC32_PC_REGNUM);
set_gdbarch_ptr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
set_gdbarch_push_arguments (gdbarch, sparc32_push_arguments);
set_gdbarch_read_fp (gdbarch, generic_target_read_fp);
set_gdbarch_read_sp (gdbarch, generic_target_read_sp);
set_gdbarch_register_byte (gdbarch, sparc32_register_byte);
set_gdbarch_register_raw_size (gdbarch, sparc32_register_size);
set_gdbarch_register_size (gdbarch, 4);
set_gdbarch_register_virtual_size (gdbarch, sparc32_register_size);
set_gdbarch_register_virtual_type (gdbarch,
sparc32_register_virtual_type);
#ifdef SPARC32_CALL_DUMMY_ON_STACK
set_gdbarch_sizeof_call_dummy_words (gdbarch, sizeof (call_dummy_32));
#else
set_gdbarch_sizeof_call_dummy_words (gdbarch, 0);
#endif
set_gdbarch_stack_align (gdbarch, sparc32_stack_align);
set_gdbarch_store_struct_return (gdbarch, sparc32_store_struct_return);
set_gdbarch_use_struct_convention (gdbarch,
generic_use_struct_convention);
set_gdbarch_write_sp (gdbarch, generic_target_write_sp);
tdep->y_regnum = SPARC32_Y_REGNUM;
tdep->fp_max_regnum = SPARC_FP0_REGNUM + 32;
tdep->intreg_size = 4;
tdep->reg_save_offset = 0x60;
tdep->call_dummy_call_offset = 0x24;
break;
case bfd_mach_sparc_v9:
case bfd_mach_sparc_v9a:
default:
#ifdef SPARC64_CALL_DUMMY_ON_STACK
set_gdbarch_deprecated_pc_in_call_dummy (gdbarch, deprecated_pc_in_call_dummy_on_stack);
set_gdbarch_call_dummy_address (gdbarch, sparc_call_dummy_address);
set_gdbarch_call_dummy_breakpoint_offset (gdbarch, 8 * 4);
set_gdbarch_call_dummy_length (gdbarch, 192);
set_gdbarch_call_dummy_location (gdbarch, ON_STACK);
set_gdbarch_call_dummy_start_offset (gdbarch, 148);
set_gdbarch_call_dummy_words (gdbarch, call_dummy_64);
#else
set_gdbarch_deprecated_pc_in_call_dummy (gdbarch, deprecated_pc_in_call_dummy_at_entry_point);
set_gdbarch_call_dummy_address (gdbarch, entry_point_address);
set_gdbarch_call_dummy_breakpoint_offset (gdbarch, 0);
set_gdbarch_call_dummy_length (gdbarch, 0);
set_gdbarch_call_dummy_start_offset (gdbarch, 0);
set_gdbarch_call_dummy_words (gdbarch, call_dummy_nil);
#endif
set_gdbarch_call_dummy_stack_adjust (gdbarch, 128);
set_gdbarch_frame_args_skip (gdbarch, 136);
set_gdbarch_function_start_offset (gdbarch, 0);
set_gdbarch_long_bit (gdbarch, 8 * TARGET_CHAR_BIT);
set_gdbarch_npc_regnum (gdbarch, SPARC64_NPC_REGNUM);
set_gdbarch_pc_regnum (gdbarch, SPARC64_PC_REGNUM);
set_gdbarch_ptr_bit (gdbarch, 8 * TARGET_CHAR_BIT);
set_gdbarch_push_arguments (gdbarch, sparc64_push_arguments);
set_gdbarch_read_fp (gdbarch, sparc64_read_fp);
set_gdbarch_read_sp (gdbarch, sparc64_read_sp);
set_gdbarch_register_byte (gdbarch, sparc64_register_byte);
set_gdbarch_register_raw_size (gdbarch, sparc64_register_size);
set_gdbarch_register_size (gdbarch, 8);
set_gdbarch_register_virtual_size (gdbarch, sparc64_register_size);
set_gdbarch_register_virtual_type (gdbarch,
sparc64_register_virtual_type);
#ifdef SPARC64_CALL_DUMMY_ON_STACK
set_gdbarch_sizeof_call_dummy_words (gdbarch, sizeof (call_dummy_64));
#else
set_gdbarch_sizeof_call_dummy_words (gdbarch, 0);
#endif
set_gdbarch_stack_align (gdbarch, sparc64_stack_align);
set_gdbarch_store_struct_return (gdbarch, sparc64_store_struct_return);
set_gdbarch_use_struct_convention (gdbarch,
sparc64_use_struct_convention);
set_gdbarch_write_sp (gdbarch, sparc64_write_sp);
tdep->y_regnum = SPARC64_Y_REGNUM;
tdep->fp_max_regnum = SPARC_FP0_REGNUM + 48;
tdep->intreg_size = 8;
tdep->reg_save_offset = 0x90;
tdep->call_dummy_call_offset = 148 + 4 * 5;
break;
}
switch (info.bfd_arch_info->mach)
{
case bfd_mach_sparc:
set_gdbarch_deprecated_extract_return_value (gdbarch, sparc32_extract_return_value);
set_gdbarch_num_regs (gdbarch, 72);
set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4);
set_gdbarch_register_name (gdbarch, sparc32_register_name);
set_gdbarch_deprecated_store_return_value (gdbarch, sparc_store_return_value);
tdep->has_fpu = 1;
tdep->fp_register_bytes = 32 * 4;
tdep->print_insn_mach = bfd_mach_sparc;
break;
case bfd_mach_sparc_sparclet:
set_gdbarch_deprecated_extract_return_value (gdbarch, sparclet_extract_return_value);
set_gdbarch_num_regs (gdbarch, 32 + 32 + 8 + 8 + 8);
set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4 + 8*4 + 8*4);
set_gdbarch_register_name (gdbarch, sparclet_register_name);
set_gdbarch_deprecated_store_return_value (gdbarch, sparclet_store_return_value);
tdep->has_fpu = 0;
tdep->fp_register_bytes = 0;
tdep->print_insn_mach = bfd_mach_sparc_sparclet;
break;
case bfd_mach_sparc_sparclite:
set_gdbarch_deprecated_extract_return_value (gdbarch, sparc32_extract_return_value);
set_gdbarch_num_regs (gdbarch, 80);
set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4 + 8*4);
set_gdbarch_register_name (gdbarch, sparclite_register_name);
set_gdbarch_deprecated_store_return_value (gdbarch, sparc_store_return_value);
tdep->has_fpu = 0;
tdep->fp_register_bytes = 0;
tdep->print_insn_mach = bfd_mach_sparc_sparclite;
break;
case bfd_mach_sparc_v8plus:
set_gdbarch_deprecated_extract_return_value (gdbarch, sparc32_extract_return_value);
set_gdbarch_num_regs (gdbarch, 72);
set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4);
set_gdbarch_register_name (gdbarch, sparc32_register_name);
set_gdbarch_deprecated_store_return_value (gdbarch, sparc_store_return_value);
tdep->print_insn_mach = bfd_mach_sparc;
tdep->fp_register_bytes = 32 * 4;
tdep->has_fpu = 1;
break;
case bfd_mach_sparc_v8plusa:
set_gdbarch_deprecated_extract_return_value (gdbarch, sparc32_extract_return_value);
set_gdbarch_num_regs (gdbarch, 72);
set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4);
set_gdbarch_register_name (gdbarch, sparc32_register_name);
set_gdbarch_deprecated_store_return_value (gdbarch, sparc_store_return_value);
tdep->has_fpu = 1;
tdep->fp_register_bytes = 32 * 4;
tdep->print_insn_mach = bfd_mach_sparc;
break;
case bfd_mach_sparc_sparclite_le:
set_gdbarch_deprecated_extract_return_value (gdbarch, sparc32_extract_return_value);
set_gdbarch_num_regs (gdbarch, 80);
set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4 + 8*4);
set_gdbarch_register_name (gdbarch, sparclite_register_name);
set_gdbarch_deprecated_store_return_value (gdbarch, sparc_store_return_value);
tdep->has_fpu = 0;
tdep->fp_register_bytes = 0;
tdep->print_insn_mach = bfd_mach_sparc_sparclite;
break;
case bfd_mach_sparc_v9:
set_gdbarch_deprecated_extract_return_value (gdbarch, sparc64_extract_return_value);
set_gdbarch_num_regs (gdbarch, 125);
set_gdbarch_register_bytes (gdbarch, 32*8 + 32*8 + 45*8);
set_gdbarch_register_name (gdbarch, sparc64_register_name);
set_gdbarch_deprecated_store_return_value (gdbarch, sparc_store_return_value);
tdep->has_fpu = 1;
tdep->fp_register_bytes = 64 * 4;
tdep->print_insn_mach = bfd_mach_sparc_v9a;
break;
case bfd_mach_sparc_v9a:
set_gdbarch_deprecated_extract_return_value (gdbarch, sparc64_extract_return_value);
set_gdbarch_num_regs (gdbarch, 125);
set_gdbarch_register_bytes (gdbarch, 32*8 + 32*8 + 45*8);
set_gdbarch_register_name (gdbarch, sparc64_register_name);
set_gdbarch_deprecated_store_return_value (gdbarch, sparc_store_return_value);
tdep->has_fpu = 1;
tdep->fp_register_bytes = 64 * 4;
tdep->print_insn_mach = bfd_mach_sparc_v9a;
break;
}
gdbarch_init_osabi (info, gdbarch);
return gdbarch;
}
static void
sparc_dump_tdep (struct gdbarch *current_gdbarch, struct ui_file *file)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
if (tdep == NULL)
return;
fprintf_unfiltered (file, "sparc_dump_tdep: has_fpu = %d\n",
tdep->has_fpu);
fprintf_unfiltered (file, "sparc_dump_tdep: fp_register_bytes = %d\n",
tdep->fp_register_bytes);
fprintf_unfiltered (file, "sparc_dump_tdep: y_regnum = %d\n",
tdep->y_regnum);
fprintf_unfiltered (file, "sparc_dump_tdep: fp_max_regnum = %d\n",
tdep->fp_max_regnum);
fprintf_unfiltered (file, "sparc_dump_tdep: intreg_size = %d\n",
tdep->intreg_size);
fprintf_unfiltered (file, "sparc_dump_tdep: reg_save_offset = %d\n",
tdep->reg_save_offset);
fprintf_unfiltered (file, "sparc_dump_tdep: call_dummy_call_offset = %d\n",
tdep->call_dummy_call_offset);
fprintf_unfiltered (file, "sparc_dump_tdep: print_insn_match = %d\n",
tdep->print_insn_mach);
}