#include "defs.h"
#include "inferior.h"
#include "gdbcore.h"
#include "target.h"
#include "regcache.h"
#include "alpha-tdep.h"
#include <sys/ptrace.h>
#ifdef __linux__
#include <asm/reg.h>
#include <alpha/ptrace.h>
#else
#include <alpha/coreregs.h>
#endif
#include <sys/user.h>
static void fetch_osf_core_registers (char *, unsigned, int, CORE_ADDR);
static void fetch_elf_core_registers (char *, unsigned, int, CORE_ADDR);
static void
fetch_osf_core_registers (char *core_reg_sect, unsigned core_reg_size,
int which, CORE_ADDR reg_addr)
{
register int regno;
register int addr;
int bad_reg = -1;
static int core_reg_mapping[ALPHA_NUM_REGS] =
{
#ifdef NCF_REGS
#define EFL NCF_REGS
CF_V0, CF_T0, CF_T1, CF_T2, CF_T3, CF_T4, CF_T5, CF_T6,
CF_T7, CF_S0, CF_S1, CF_S2, CF_S3, CF_S4, CF_S5, CF_S6,
CF_A0, CF_A1, CF_A2, CF_A3, CF_A4, CF_A5, CF_T8, CF_T9,
CF_T10, CF_T11, CF_RA, CF_T12, CF_AT, CF_GP, CF_SP, -1,
EFL + 0, EFL + 1, EFL + 2, EFL + 3, EFL + 4, EFL + 5, EFL + 6, EFL + 7,
EFL + 8, EFL + 9, EFL + 10, EFL + 11, EFL + 12, EFL + 13, EFL + 14, EFL + 15,
EFL + 16, EFL + 17, EFL + 18, EFL + 19, EFL + 20, EFL + 21, EFL + 22, EFL + 23,
EFL + 24, EFL + 25, EFL + 26, EFL + 27, EFL + 28, EFL + 29, EFL + 30, EFL + 31,
CF_PC, -1
#else
#define EFL (EF_SIZE / 8)
EF_V0, EF_T0, EF_T1, EF_T2, EF_T3, EF_T4, EF_T5, EF_T6,
EF_T7, EF_S0, EF_S1, EF_S2, EF_S3, EF_S4, EF_S5, EF_S6,
EF_A0, EF_A1, EF_A2, EF_A3, EF_A4, EF_A5, EF_T8, EF_T9,
EF_T10, EF_T11, EF_RA, EF_T12, EF_AT, EF_GP, EF_SP, -1,
EFL + 0, EFL + 1, EFL + 2, EFL + 3, EFL + 4, EFL + 5, EFL + 6, EFL + 7,
EFL + 8, EFL + 9, EFL + 10, EFL + 11, EFL + 12, EFL + 13, EFL + 14, EFL + 15,
EFL + 16, EFL + 17, EFL + 18, EFL + 19, EFL + 20, EFL + 21, EFL + 22, EFL + 23,
EFL + 24, EFL + 25, EFL + 26, EFL + 27, EFL + 28, EFL + 29, EFL + 30, EFL + 31,
EF_PC, -1
#endif
};
static char zerobuf[ALPHA_MAX_REGISTER_RAW_SIZE] =
{0};
for (regno = 0; regno < NUM_REGS; regno++)
{
if (CANNOT_FETCH_REGISTER (regno))
{
supply_register (regno, zerobuf);
continue;
}
addr = 8 * core_reg_mapping[regno];
if (addr < 0 || addr >= core_reg_size)
{
if (bad_reg < 0)
bad_reg = regno;
}
else
{
supply_register (regno, core_reg_sect + addr);
}
}
if (bad_reg >= 0)
{
error ("Register %s not found in core file.", REGISTER_NAME (bad_reg));
}
}
static void
fetch_elf_core_registers (char *core_reg_sect, unsigned core_reg_size,
int which, CORE_ADDR reg_addr)
{
if (core_reg_size < 32 * 8)
{
error ("Core file register section too small (%u bytes).", core_reg_size);
return;
}
if (which == 2)
{
memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], core_reg_sect, 31 * 8);
memset (®isters[REGISTER_BYTE (FP0_REGNUM + 31)], 0, 8);
memset (®ister_valid[FP0_REGNUM], 1, 32);
}
else
{
memcpy (®isters[REGISTER_BYTE (ALPHA_V0_REGNUM)], core_reg_sect,
31 * 8);
memcpy (®isters[REGISTER_BYTE (PC_REGNUM)], core_reg_sect + 31 * 8, 8);
memset (®isters[REGISTER_BYTE (ALPHA_ZERO_REGNUM)], 0, 8);
memset (®ister_valid[ALPHA_V0_REGNUM], 1, 32);
register_valid[PC_REGNUM] = 1;
}
}
#define REGISTER_PTRACE_ADDR(regno) \
(regno < FP0_REGNUM ? GPR_BASE + (regno) \
: regno == PC_REGNUM ? PC \
: regno >= FP0_REGNUM ? FPR_BASE + ((regno) - FP0_REGNUM) \
: 0)
CORE_ADDR
register_addr (int regno, CORE_ADDR blockend)
{
return REGISTER_PTRACE_ADDR (regno);
}
int
kernel_u_size (void)
{
return (sizeof (struct user));
}
#if defined(USE_PROC_FS) || defined(HAVE_GREGSET_T)
#include <sys/procfs.h>
#include "gregset.h"
void
supply_gregset (gdb_gregset_t *gregsetp)
{
register int regi;
register long *regp = ALPHA_REGSET_BASE (gregsetp);
static char zerobuf[ALPHA_MAX_REGISTER_RAW_SIZE] =
{0};
for (regi = 0; regi < 31; regi++)
supply_register (regi, (char *) (regp + regi));
supply_register (PC_REGNUM, (char *) (regp + 31));
supply_register (ALPHA_ZERO_REGNUM, zerobuf);
supply_register (FP_REGNUM, zerobuf);
}
void
fill_gregset (gdb_gregset_t *gregsetp, int regno)
{
int regi;
register long *regp = ALPHA_REGSET_BASE (gregsetp);
for (regi = 0; regi < 31; regi++)
if ((regno == -1) || (regno == regi))
*(regp + regi) = *(long *) ®isters[REGISTER_BYTE (regi)];
if ((regno == -1) || (regno == PC_REGNUM))
*(regp + 31) = *(long *) ®isters[REGISTER_BYTE (PC_REGNUM)];
}
void
supply_fpregset (gdb_fpregset_t *fpregsetp)
{
register int regi;
register long *regp = ALPHA_REGSET_BASE (fpregsetp);
for (regi = 0; regi < 32; regi++)
supply_register (regi + FP0_REGNUM, (char *) (regp + regi));
}
void
fill_fpregset (gdb_fpregset_t *fpregsetp, int regno)
{
int regi;
register long *regp = ALPHA_REGSET_BASE (fpregsetp);
for (regi = FP0_REGNUM; regi < FP0_REGNUM + 32; regi++)
{
if ((regno == -1) || (regno == regi))
{
*(regp + regi - FP0_REGNUM) =
*(long *) ®isters[REGISTER_BYTE (regi)];
}
}
}
#endif
static struct core_fns alpha_osf_core_fns =
{
bfd_target_unknown_flavour,
default_check_format,
default_core_sniffer,
fetch_osf_core_registers,
NULL
};
static struct core_fns alpha_elf_core_fns =
{
bfd_target_elf_flavour,
default_check_format,
default_core_sniffer,
fetch_elf_core_registers,
NULL
};
void
_initialize_core_alpha (void)
{
add_core_fns (&alpha_osf_core_fns);
add_core_fns (&alpha_elf_core_fns);
}