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* i386-linux-tdep.c (i386_linux_gregset_reg_offset): New variable.

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(i386_linux_init_abi): Initialize TDEP->gregset_reg_offset,
TDEP->gregset_num_regs and tdep->sizeof_gregset.
This commit is contained in:
Mark Kettenis 2003-10-30 22:25:54 +00:00
parent 2382c03f5a
commit e9f1aad5b5
2 changed files with 52 additions and 0 deletions
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4
gdb/ChangeLog
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@ -1,5 +1,9 @@
2003-10-30 Mark Kettenis <kettenis@gnu.org>
* i386-linux-tdep.c (i386_linux_gregset_reg_offset): New variable.
(i386_linux_init_abi): Initialize TDEP->gregset_reg_offset,
TDEP->gregset_num_regs and tdep->sizeof_gregset.
* i386-linux-tdep.c (i386_linux_sc_reg_offset): Don't explicitly
specify size of array.
(i386_linux_init_abi): Remove initialization of

48
gdb/i386-linux-tdep.c
View File

@ -439,6 +439,50 @@ i386_linux_svr4_fetch_link_map_offsets (void)
}
/* The register sets used in GNU/Linux ELF core-dumps are identical to
the register sets in `struct user' that are used for a.out
core-dumps. These are also used by ptrace(2). The corresponding
types are `elf_gregset_t' for the general-purpose registers (with
`elf_greg_t' the type of a single GP register) and `elf_fpregset_t'
for the floating-point registers.
Those types used to be available under the names `gregset_t' and
`fpregset_t' too, and GDB used those names in the past. But those
names are now used for the register sets used in the `mcontext_t'
type, which have a different size and layout. */
/* Mapping between the general-purpose registers in `struct user'
format and GDB's register cache layout. */
/* From <sys/reg.h>. */
static int i386_linux_gregset_reg_offset[] =
{
6 * 4, /* %eax */
1 * 4, /* %ecx */
2 * 4, /* %edx */
0 * 4, /* %ebx */
15 * 4, /* %esp */
5 * 4, /* %ebp */
3 * 4, /* %esi */
4 * 4, /* %edi */
12 * 4, /* %eip */
14 * 4, /* %eflags */
13 * 4, /* %cs */
16 * 4, /* %ss */
7 * 4, /* %ds */
8 * 4, /* %es */
9 * 4, /* %fs */
10 * 4, /* %gs */
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1,
11 * 4 /* "orig_eax" */
};
/* Mapping between the general-purpose registers in `struct
sigcontext' format and GDB's register cache layout. */
/* From <asm/sigcontext.h>. */
static int i386_linux_sc_reg_offset[] =
{
@ -476,6 +520,10 @@ i386_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
set_gdbarch_register_name (gdbarch, i386_linux_register_name);
set_gdbarch_register_reggroup_p (gdbarch, i386_linux_register_reggroup_p);
tdep->gregset_reg_offset = i386_linux_gregset_reg_offset;
tdep->gregset_num_regs = ARRAY_SIZE (i386_linux_gregset_reg_offset);
tdep->sizeof_gregset = 17 * 4;
tdep->jb_pc_offset = 20; /* From <bits/setjmp.h>. */
tdep->sigcontext_addr = i386_linux_sigcontext_addr;