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* i386-tdep.h (struct gdbarch_tdep): Add members gregset,

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gregset_reg_offset, gregset_num_regs, sizeof_gregset, fpregset,
sizeof_fpregset.
* i386-tdep.c: Include "regset.h".
(i386_supply_gregset): New function.
(i386_supply_fpregset): New function.
(i386_gdbarch_init): Initialze register set-related members of
TDEP.
* x86-64-tdep.c (x86_64_supply_fpregset): New function.
(x86_64_init_abi): Initialize TDEP->sizeof_fpregset.
This commit is contained in:
Mark Kettenis 2003-10-05 21:31:33 +00:00
parent c205944638
commit 473f17b043
4 changed files with 88 additions and 0 deletions
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13
gdb/ChangeLog
View file

@ -1,3 +1,16 @@
2003-10-05 Mark Kettenis <kettenis@gnu.org>
* i386-tdep.h (struct gdbarch_tdep): Add members gregset,
gregset_reg_offset, gregset_num_regs, sizeof_gregset, fpregset,
sizeof_fpregset.
* i386-tdep.c: Include "regset.h".
(i386_supply_gregset): New function.
(i386_supply_fpregset): New function.
(i386_gdbarch_init): Initialze register set-related members of
TDEP.
* x86-64-tdep.c (x86_64_supply_fpregset): New function.
(x86_64_init_abi): Initialize TDEP->sizeof_fpregset.
2003-10-03 Andrew Cagney <cagney@redhat.com>
* rs6000-tdep.c (rs6000_gdbarch_init): When the 64 bit SysV ABI,

46
gdb/i386-tdep.c
View file

@ -37,6 +37,7 @@
#include "osabi.h"
#include "regcache.h"
#include "reggroups.h"
#include "regset.h"
#include "symfile.h"
#include "symtab.h"
#include "target.h"
@ -1548,7 +1549,42 @@ i386_value_to_register (struct frame_info *frame, int regnum,
}
}
/* Supply register REGNUM from the general-purpose register set REGSET
to register cache REGCACHE. If REGNUM is -1, do this for all
registers in REGSET. */
static void
i386_supply_gregset (const struct regset *regset, struct regcache *regcache,
int regnum, const void *gregs, size_t len)
{
const struct gdbarch_tdep *tdep = regset->descr;
const char *regs = gregs;
int i;
gdb_assert (len == tdep->sizeof_gregset);
for (i = 0; i < tdep->gregset_num_regs; i++)
{
if ((regnum == i || regnum == -1)
&& tdep->gregset_reg_offset[i] != -1)
regcache_raw_supply (regcache, i, regs + tdep->gregset_reg_offset[i]);
}
}
/* Supply register REGNUM from the floating-point register set REGSET
to register cache REGCACHE. If REGNUM is -1, do this for all
registers in REGSET. */
static void
i386_supply_fpregset (const struct regset *regset, struct regcache *regcache,
int regnum, const void *fpregs, size_t len)
{
const struct gdbarch_tdep *tdep = regset->descr;
gdb_assert (len == tdep->sizeof_fpregset);
i387_supply_fsave (regcache, regnum, fpregs);
}
#ifdef STATIC_TRANSFORM_NAME
/* SunPRO encodes the static variables. This is not related to C++
@ -1803,6 +1839,16 @@ i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
tdep = XMALLOC (struct gdbarch_tdep);
gdbarch = gdbarch_alloc (&info, tdep);
/* General-purpose registers. */
tdep->gregset = NULL;
tdep->gregset_reg_offset = NULL;
tdep->gregset_num_regs = I386_NUM_GREGS;
tdep->sizeof_gregset = 0;
/* Floating-point registers. */
tdep->fpregset = NULL;
tdep->sizeof_fpregset = I387_SIZEOF_FSAVE;
/* The default settings include the FPU registers, the MMX registers
and the SSE registers. This can be overidden for a specific ABI
by adjusting the members `st0_regnum', `mm0_regnum' and

10
gdb/i386-tdep.h
View file

@ -56,6 +56,16 @@ enum struct_return
/* i386 architecture specific information. */
struct gdbarch_tdep
{
/* General-purpose registers. */
struct regset *gregset;
int *gregset_reg_offset;
int gregset_num_regs;
size_t sizeof_gregset;
/* Floating-point registers. */
struct regset *fpregset;
size_t sizeof_fpregset;
/* Register number for %st(0). The register numbers for the other
registers follow from this one. Set this to -1 to indicate the
absence of an FPU. */

19
gdb/x86-64-tdep.c
View file

@ -1203,12 +1203,31 @@ x86_64_frame_align (struct gdbarch *gdbarch, CORE_ADDR sp)
{
return sp & -(CORE_ADDR)16;
}
/* Supply register REGNUM from the floating-point register set REGSET
to register cache REGCACHE. If REGNUM is -1, do this for all
registers in REGSET. */
static void
x86_64_supply_fpregset (const struct regset *regset, struct regcache *regcache,
int regnum, const void *fpregs, size_t len)
{
const struct gdbarch_tdep *tdep = regset->descr;
gdb_assert (len == tdep->sizeof_fpregset);
x86_64_supply_fxsave (regcache, regnum, fpregs);
}
void
x86_64_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
/* AMD64 generally uses `fxsave' instead of `fsave' for saving its
floating-point registers. */
tdep->sizeof_fpregset = I387_SIZEOF_FXSAVE;
/* AMD64 has an FPU and 16 SSE registers. */
tdep->st0_regnum = X86_64_ST0_REGNUM;
tdep->num_xmm_regs = 16;