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* i386-tdep.c (i386_gdbarch_init): Enable default support for 

SSE registers.
This commit is contained in:
Kevin Buettner 2003-08-12 16:12:33 +00:00
parent 9ad1aa2911
commit 49ed40de4e
2 changed files with 23 additions and 5 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2003-08-12 Kevin Buettner <kevinb@redhat.com>
* i386-tdep.c (i386_gdbarch_init): Enable default support for
SSE registers.
2003-08-10 Mark Kettenis <kettenis@gnu.org>
* x86-64-tdep.h (amd64fbsd_sigtramp_start, amd64fbsd_sigtramp_end,

23
gdb/i386-tdep.c
View File

@ -1757,10 +1757,23 @@ i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
tdep = XMALLOC (struct gdbarch_tdep);
gdbarch = gdbarch_alloc (&info, tdep);
/* The i386 default settings don't include the SSE registers.
/* The i386 default settings now include the SSE registers.
I386_NUM_XREGS includes mxcsr, and we don't want to count
this as one of the xmm regs -- which is why we subtract one.
Note: kevinb/2003-07-14: Whatever Mark's concerns are about the
FPU registers in the FIXME below apply to the SSE registers as well.
The only problem that I see is that these registers will show up
in "info all-registers" even on CPUs where they don't exist. IMO,
however, if it's a choice between printing them always (even when
they don't exist) or never showing them to the user (even when they
do exist), I prefer the former over the latter. Ideally, of course,
we'd somehow autodetect that we have them (or not) and display them
when we have them and suppress them when we don't.
FIXME: kettenis/20020614: They do include the FPU registers for
now, which probably is not quite right. */
tdep->num_xmm_regs = 0;
tdep->num_xmm_regs = I386_NUM_XREGS - 1;
tdep->jb_pc_offset = -1;
tdep->struct_return = pcc_struct_return;
@ -1782,9 +1795,9 @@ i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
alignment. */
set_gdbarch_long_double_bit (gdbarch, 96);
/* The default ABI includes general-purpose registers and
floating-point registers. */
set_gdbarch_num_regs (gdbarch, I386_NUM_GREGS + I386_NUM_FREGS);
/* The default ABI includes general-purpose registers,
floating-point registers, and the SSE registers. */
set_gdbarch_num_regs (gdbarch, I386_SSE_NUM_REGS);
set_gdbarch_register_name (gdbarch, i386_register_name);
set_gdbarch_register_type (gdbarch, i386_register_type);