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2011-01-28 Pedro Alves <pedro@codesourcery.com>

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* i387-fp.c (i387_xsave_to_cache): Make passing NULL as register
	buffer explicit.
This commit is contained in:
Pedro Alves
2011-01-28 12:58:00 +00:00
parent 0fda7d1689
commit 85724a0e60
2 changed files with 35 additions and 30 deletions
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5
gdb/gdbserver/ChangeLog
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@ -1,3 +1,8 @@
2011-01-28 Pedro Alves <pedro@codesourcery.com>
* i387-fp.c (i387_xsave_to_cache): Make passing NULL as register
buffer explicit.
2011-01-25 Pedro Alves <pedro@codesourcery.com> 2011-01-25 Pedro Alves <pedro@codesourcery.com>
* server.h (decode_xfer_write): Change prototype. * server.h (decode_xfer_write): Change prototype.

60
gdb/gdbserver/i387-fp.c
View File

@ -468,61 +468,61 @@ i387_xsave_to_cache (struct regcache *regcache, const void *buf)
int i, top; int i, top;
unsigned long val; unsigned long val;
unsigned int clear_bv; unsigned int clear_bv;
char *p; gdb_byte *p;
/* The supported bits in `xstat_bv' are 1 byte. Clear part in /* The supported bits in `xstat_bv' are 1 byte. Clear part in
vector registers if its bit in xstat_bv is zero. */ vector registers if its bit in xstat_bv is zero. */
clear_bv = (~fp->xstate_bv) & x86_xcr0; clear_bv = (~fp->xstate_bv) & x86_xcr0;
/* Check if any x87 registers are changed. */ /* Check if any x87 registers are changed. */
if ((x86_xcr0 & I386_XSTATE_X87)) if ((x86_xcr0 & I386_XSTATE_X87) != 0)
{ {
int st0_regnum = find_regno ("st0"); int st0_regnum = find_regno ("st0");
if ((clear_bv & I386_XSTATE_X87)) if ((clear_bv & I386_XSTATE_X87) != 0)
p = NULL;
else
p = (char *) buf;
for (i = 0; i < 8; i++)
{ {
if (p) for (i = 0; i < 8; i++)
p = ((char *) &fp->st_space[0]) + i * 16; supply_register (regcache, i + st0_regnum, NULL);
supply_register (regcache, i + st0_regnum, p); }
else
{
p = (gdb_byte *) &fp->st_space[0];
for (i = 0; i < 8; i++)
supply_register (regcache, i + st0_regnum, p + i * 16);
} }
} }
if ((x86_xcr0 & I386_XSTATE_SSE)) if ((x86_xcr0 & I386_XSTATE_SSE) != 0)
{ {
int xmm0_regnum = find_regno ("xmm0"); int xmm0_regnum = find_regno ("xmm0");
if ((clear_bv & I386_XSTATE_SSE)) if ((clear_bv & I386_XSTATE_SSE))
p = NULL;
else
p = (char *) buf;
for (i = 0; i < num_xmm_registers; i++)
{ {
if (p) for (i = 0; i < num_xmm_registers; i++)
p = ((char *) &fp->xmm_space[0]) + i * 16; supply_register (regcache, i + xmm0_regnum, NULL);
supply_register (regcache, i + xmm0_regnum, p); }
else
{
p = (gdb_byte *) &fp->xmm_space[0];
for (i = 0; i < num_xmm_registers; i++)
supply_register (regcache, i + xmm0_regnum, p + i * 16);
} }
} }
if ((x86_xcr0 & I386_XSTATE_AVX)) if ((x86_xcr0 & I386_XSTATE_AVX) != 0)
{ {
int ymm0h_regnum = find_regno ("ymm0h"); int ymm0h_regnum = find_regno ("ymm0h");
if ((clear_bv & I386_XSTATE_AVX)) if ((clear_bv & I386_XSTATE_AVX) != 0)
p = NULL;
else
p = (char *) buf;
for (i = 0; i < num_xmm_registers; i++)
{ {
if (p) for (i = 0; i < num_xmm_registers; i++)
p = ((char *) &fp->ymmh_space[0]) + i * 16; supply_register (regcache, i + ymm0h_regnum, NULL);
supply_register (regcache, i + ymm0h_regnum, p); }
else
{
p = (gdb_byte *) &fp->ymmh_space[0];
for (i = 0; i < num_xmm_registers; i++)
supply_register (regcache, i + ymm0h_regnum, p + i * 16);
} }
} }