#include "gdbcore.h"
#include "objfiles.h"
#include "regcache.h"
+#include "regset.h"
#include "symfile.h"
#include "gdb_assert.h"
/* XXX: What about complex floating point types? */
else
{
- int low_size = REGISTER_RAW_SIZE (0);
- int high_size = REGISTER_RAW_SIZE (1);
+ int low_size = register_size (current_gdbarch, X86_64_RAX_REGNUM);
+ int high_size = register_size (current_gdbarch, X86_64_RDX_REGNUM);
if (len <= low_size)
regcache_cooked_write_part (regcache, 0, 0, len, valbuf);
{
return sp & -(CORE_ADDR)16;
}
+\f
+
+/* 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);
+}
+
+/* Return the appropriate register set for the core section identified
+ by SECT_NAME and SECT_SIZE. */
+
+static const struct regset *
+x86_64_regset_from_core_section (struct gdbarch *gdbarch,
+ const char *sect_name, size_t sect_size)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
+ if (strcmp (sect_name, ".reg2") == 0 && sect_size == tdep->sizeof_fpregset)
+ {
+ if (tdep->fpregset == NULL)
+ {
+ tdep->fpregset = XMALLOC (struct regset);
+ tdep->fpregset->descr = tdep;
+ tdep->fpregset->supply_regset = x86_64_supply_fpregset;
+ }
+
+ return tdep->fpregset;
+ }
+
+ return i386_regset_from_core_section (gdbarch, sect_name, sect_size);
+}
+\f
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;
frame_unwind_append_sniffer (gdbarch, x86_64_sigtramp_frame_sniffer);
frame_unwind_append_sniffer (gdbarch, x86_64_frame_sniffer);
frame_base_set_default (gdbarch, &x86_64_frame_base);
+
+ /* If we have a register mapping, enable the generic core file support. */
+ if (tdep->gregset_reg_offset)
+ set_gdbarch_regset_from_core_section (gdbarch,
+ x86_64_regset_from_core_section);
}
\f
bits of these pointers (instead of just the 16-bits of the segment
selector). */
-/* Fill register REGNUM in GDB's register cache with the appropriate
+/* Fill register REGNUM in REGCACHE with the appropriate
floating-point or SSE register value from *FXSAVE. If REGNUM is
-1, do this for all registers. This function masks off any of the
reserved bits in *FXSAVE. */
void
-x86_64_supply_fxsave (const char *fxsave, int regnum)
+x86_64_supply_fxsave (struct regcache *regcache, int regnum,
+ const void *fxsave)
{
- i387_supply_fxsave (fxsave, regnum);
+ i387_supply_fxsave (regcache, regnum, fxsave);
if (fxsave)
{
+ const char *regs = fxsave;
+
if (regnum == -1 || regnum == I387_FISEG_REGNUM)
- supply_register (I387_FISEG_REGNUM, fxsave + 12);
+ regcache_raw_supply (regcache, I387_FISEG_REGNUM, regs + 12);
if (regnum == -1 || regnum == I387_FOSEG_REGNUM)
- supply_register (I387_FOSEG_REGNUM, fxsave + 20);
+ regcache_raw_supply (regcache, I387_FOSEG_REGNUM, regs + 20);
}
}