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testing/ostest/fpu.c: align FPU context

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some architectures requires FPU context to be aligned,
for example x86-64 when used with XSAVE instruction must be aligned to 64

Signed-off-by: p-szafonimateusz <p-szafonimateusz@xiaomi.com>
This commit is contained in:
p-szafonimateusz 2024-04-24 11:52:28 +02:00 • committed by Xiang Xiao
parent 8c7323cc8b
commit 9088634e96
1 changed files with 8 additions and 2 deletions
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10
testing/ostest/fpu.c
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@ -79,14 +79,20 @@
#define FPU_NTHREADS 2
/* Some architectures require XCPTCONTEXT to be aligned */
#ifndef XCPTCONTEXT_ALIGN
# define XCPTCONTEXT_ALIGN 1
#endif
/****************************************************************************
* Private Types
****************************************************************************/
struct fpu_threaddata_s
{
uintptr_t save1[XCPTCONTEXT_REGS];
uintptr_t save2[XCPTCONTEXT_REGS];
uintptr_t save1[XCPTCONTEXT_REGS] aligned_data(XCPTCONTEXT_ALIGN);
uintptr_t save2[XCPTCONTEXT_REGS] aligned_data(XCPTCONTEXT_ALIGN);
/* These are just dummy values to force the compiler to do the
* requested floating point computations without the nonsense