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gallium/util: fix crash with daz detection on x86

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The code used PIPE_ALIGN_VAR for the variable used by fxsave, however this
does not work if the stack isn't aligned. Hence use PIPE_ALIGN_STACK function
decoration to fix the segfault which can happen if stack alignment is only
4 bytes.
This fixes https://bugs.freedesktop.org/show_bug.cgi?id=87658.

Cc: "10.4" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit b59c7ed0ab)
This commit is contained in:
Roland Scheidegger 2014-12-31 17:39:57 +01:00 • committed by Emil Velikov
parent af1a690075
commit ac3ca98a1b
1 changed files with 1 additions and 1 deletions
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src/gallium/auxiliary/util/u_cpu_detect.c
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@ -272,7 +272,7 @@ static INLINE uint64_t xgetbv(void)
#if defined(PIPE_ARCH_X86)
static INLINE boolean sse2_has_daz(void)
PIPE_ALIGN_STACK static INLINE boolean sse2_has_daz(void)
{
struct {
uint32_t pad1[7];