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CARP: 

For MIPS, multi-arch MIPS_EABI, MIPS_LAST_FP_ARG_REGNUM,
MIPS_LAST_ARG_REGNUM.
This commit is contained in:
Andrew Cagney 1998-12-16 15:13:55 +00:00
parent 115c338d20
commit ff6f2f5786
2 changed files with 136 additions and 0 deletions
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9
gdb/ChangeLog
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@ -1,4 +1,13 @@
start-sanitize-carp start-sanitize-vr4xxx
Thu Dec 17 02:06:17 1998 Andrew Cagney <cagney@chook.cygnus.com>
* mips-tdep.c (mips_gdbarch_init): New function. Initialize a MIPS
architecture vector.
(_initialize_mips_tdep): Register MIPS with GDBARCH.
(struct gdbarch_tdep): Define.
(MIPS_EABI, MIPS_LAST_FP_ARG_REGNUM, MIPS_LAST_ARG_REGNUM): When
multi-arch, get value from gdbarch->tdep.
Thu Dec 17 02:01:58 1998 Andrew Cagney <cagney@chook>
* gdbtypes.c (_initialize_gdbtypes): Register all builtin types

127
gdb/mips-tdep.c
View File

@ -35,6 +35,39 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "target.h"
#include "opcode/mips.h"
/* start-sanitize-carp start-sanitize-vr4xxx */
#include "elf/mips.h"
#include "elf-bfd.h"
/* MIPS specific per-architecture information */
struct gdbarch_tdep
{
int elf_abi;
/* mips options */
int mips_eabi;
/* int mips_default_fpu_type;
Not yet. The MIPS_DEFAULT_FPU_TYPE is set independant of the
current mips architecture. */
int mips_last_arg_regnum;
int mips_last_fp_arg_regnum;
};
#if GDB_MULTI_ARCH
#undef MIPS_EABI
#define MIPS_EABI (gdbarch_tdep (current_gdbarch)->mips_eabi)
#endif
#if GDB_MULTI_ARCH
#undef MIPS_LAST_FP_ARG_REGNUM
#define MIPS_LAST_FP_ARG_REGNUM (gdbarch_tdep (current_gdbarch)->mips_last_fp_arg_regnum)
#endif
#if GDB_MULTI_ARCH
#undef MIPS_LAST_ARG_REGNUM
#define MIPS_LAST_ARG_REGNUM (gdbarch_tdep (current_gdbarch)->mips_last_arg_regnum)
#endif
/* end-sanitize-carp start-sanitize-vr4xxx */
#define VM_MIN_ADDRESS (CORE_ADDR)0x400000
@ -3191,11 +3224,105 @@ mips_call_dummy_address ()
return entry_point_address ();
}
/* start-sanitize-carp start-sanitize-vr4xxx */
static gdbarch_init_ftype mips_gdbarch_init;
static struct gdbarch *
mips_gdbarch_init (info, arches)
const struct gdbarch_info *info;
struct gdbarch_list *arches;
{
struct gdbarch *gdbarch;
struct gdbarch_tdep *tdep;
int elf_abi;
if (info->abfd != NULL)
elf_abi = elf_elfheader (info->abfd)->e_flags & EF_MIPS_ABI;
else if (gdbarch_bfd_arch_info (current_gdbarch)->arch == bfd_arch_mips)
elf_abi = gdbarch_tdep (current_gdbarch)->elf_abi;
else
elf_abi = 0;
/* try to find a pre-existing architecture */
for (arches = gdbarch_list_lookup_by_info (arches, info);
arches != NULL;
arches = gdbarch_list_lookup_by_info (arches->next, info))
{
/* MIPS needs to be pedantic about which ABI the object is
using. */
if (gdbarch_tdep (current_gdbarch)->elf_abi != elf_abi)
continue;
return arches->gdbarch;
}
/* Need a new architecture. Fill in a target specific vector. */
tdep = (struct gdbarch_tdep*) xmalloc (sizeof (struct gdbarch_tdep));
gdbarch = gdbarch_alloc (info, tdep);
tdep->elf_abi = elf_abi;
switch (elf_abi)
{
case E_MIPS_ABI_O32:
tdep->mips_eabi = 0;
set_gdbarch_long_bit (gdbarch, 32);
set_gdbarch_ptr_bit (gdbarch, 32);
break;
case E_MIPS_ABI_O64:
tdep->mips_eabi = 0;
set_gdbarch_long_bit (gdbarch, 32);
set_gdbarch_ptr_bit (gdbarch, 32);
break;
case E_MIPS_ABI_EABI32:
tdep->mips_eabi = 1;
set_gdbarch_long_bit (gdbarch, 32);
set_gdbarch_ptr_bit (gdbarch, 32);
break;
case E_MIPS_ABI_EABI64:
tdep->mips_eabi = 1;
set_gdbarch_long_bit (gdbarch, 64);
set_gdbarch_ptr_bit (gdbarch, 64);
break;
default:
tdep->mips_eabi = 0;
set_gdbarch_long_bit (gdbarch, 32);
set_gdbarch_ptr_bit (gdbarch, 32);
break;
}
if (tdep->mips_eabi)
{
/* EABI uses R4 through R11 for args */
tdep->mips_last_arg_regnum = 11;
/* EABI uses F12 through F19 for args */
tdep->mips_last_fp_arg_regnum = FP0_REGNUM + 19;
}
else
{
/* old ABI uses R4 through R7 for args */
tdep->mips_last_arg_regnum = 7;
/* old ABI uses F12 through F15 for args */
tdep->mips_last_fp_arg_regnum = FP0_REGNUM + 15;
}
set_gdbarch_long_long_bit (gdbarch, 64);
if (gdbarch_debug)
{
fprintf_unfiltered (stderr, "MIPS_EABI = %d\n", tdep->mips_eabi);
fprintf_unfiltered (stderr, "MIPS_LAST_ARG_REGNUM = %d\n", tdep->mips_last_arg_regnum);
fprintf_unfiltered (stderr, "MIPS_LAST_FP_ARG_REGNUM = %d (%d)\n", tdep->mips_last_fp_arg_regnum, tdep->mips_last_fp_arg_regnum - FP0_REGNUM);
}
return gdbarch;
}
/* end-sanitize-carp start-sanitize-vr4xxx */
void
_initialize_mips_tdep ()
{
struct cmd_list_element *c;
/* start-sanitize-carp start-sanitize-vr4xxx */
if (GDB_MULTI_ARCH)
register_gdbarch_init (bfd_arch_mips, mips_gdbarch_init);
/* end-sanitize-carp start-sanitize-vr4xxx */
if (!tm_print_insn) /* Someone may have already set it */
tm_print_insn = gdb_print_insn_mips;