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[X86] Cleanup XMM handling for x86

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* Use explicit types for XMM registers
* Support full width (128 bits) access

Signed-off-by: Andrew Cagney <cagney@redhat.com>
Signed-off-by: Arun Sharma <aruns@google.com>
This commit is contained in:
David Mosberger-Tang 2008-01-07 15:41:20 -07:00
parent 32145b680d
commit a8be10e251
5 changed files with 47 additions and 4 deletions
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17
include/libunwind-x86.h
View file

@ -48,7 +48,11 @@ extern "C" {
typedef uint32_t unw_word_t;
typedef int32_t unw_sword_t;
typedef long double unw_tdep_fpreg_t;
typedef union {
struct { uint8_t b[4]; } val32;
struct { uint8_t b[10]; } val80;
struct { uint8_t b[16]; } val128;
} unw_tdep_fpreg_t;
typedef enum
{
@ -131,7 +135,16 @@ typedef enum
/* frame info (read-only) */
UNW_X86_CFA,
UNW_TDEP_LAST_REG = UNW_X86_LDT,
UNW_X86_XMM0, /* scratch */
UNW_X86_XMM1, /* scratch */
UNW_X86_XMM2, /* scratch */
UNW_X86_XMM3, /* scratch */
UNW_X86_XMM4, /* scratch */
UNW_X86_XMM5, /* scratch */
UNW_X86_XMM6, /* scratch */
UNW_X86_XMM7, /* scratch */
UNW_TDEP_LAST_REG = UNW_X86_XMM7,
UNW_TDEP_IP = UNW_X86_EIP,
UNW_TDEP_SP = UNW_X86_CFA,

8
src/x86/Gget_save_loc.c
View file

@ -94,6 +94,14 @@ unw_get_save_loc (unw_cursor_t *cursor, int reg, unw_save_loc_t *sloc)
case UNW_X86_XMM6_hi:
case UNW_X86_XMM7_lo:
case UNW_X86_XMM7_hi:
case UNW_X86_XMM0:
case UNW_X86_XMM1:
case UNW_X86_XMM2:
case UNW_X86_XMM3:
case UNW_X86_XMM4:
case UNW_X86_XMM5:
case UNW_X86_XMM6:
case UNW_X86_XMM7:
loc = x86_scratch_loc (c, reg);
break;

19
src/x86/Gregs.c
View file

@ -97,6 +97,17 @@ linux_scratch_loc (struct cursor *c, unw_regnum_t reg)
is_fpstate = 1;
off = LINUX_FPSTATE_XMM0_OFF + 8*(reg - UNW_X86_XMM0_lo);
break;
case UNW_X86_XMM0:
case UNW_X86_XMM1:
case UNW_X86_XMM2:
case UNW_X86_XMM3:
case UNW_X86_XMM4:
case UNW_X86_XMM5:
case UNW_X86_XMM6:
case UNW_X86_XMM7:
is_fpstate = 1;
off = LINUX_FPSTATE_XMM0_OFF + 16*(reg - UNW_X86_XMM0);
break;
case UNW_X86_FOP:
case UNW_X86_TSS:
@ -235,6 +246,14 @@ tdep_access_fpreg (struct cursor *c, unw_regnum_t reg, unw_fpreg_t *valp,
case UNW_X86_ST6:
case UNW_X86_ST7:
/* SSE fp registers */
case UNW_X86_XMM0:
case UNW_X86_XMM1:
case UNW_X86_XMM2:
case UNW_X86_XMM3:
case UNW_X86_XMM4:
case UNW_X86_XMM5:
case UNW_X86_XMM6:
case UNW_X86_XMM7:
case UNW_X86_XMM0_lo:
case UNW_X86_XMM0_hi:
case UNW_X86_XMM1_lo:

3
src/x86/is_fpreg.c
View file

@ -29,5 +29,6 @@ PROTECTED int
unw_is_fpreg (int regnum)
{
return ((regnum >= UNW_X86_ST0 && regnum <= UNW_X86_ST7)
|| (regnum >= UNW_X86_XMM0_lo && regnum <= UNW_X86_XMM7_hi));
|| (regnum >= UNW_X86_XMM0_lo && regnum <= UNW_X86_XMM7_hi)
|| (regnum >= UNW_X86_XMM0 && regnum <= UNW_X86_XMM7));
}

4
src/x86/regname.c
View file

@ -12,7 +12,9 @@ static const char *regname[] =
"xmm6_lo", "xmm6_hi", "xmm7_lo", "xmm7_hi",
"mxcsr",
"gs", "fs", "es", "ds", "ss", "cs",
"tss", "ldt"
"tss", "ldt",
"cfi",
"xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7",
};
PROTECTED const char *