Jan Beulich 715bdd0e47 x86emul/test: wrap libc functions with FPU save/restore code ...

Currently with the native tool chain on Debian Jessie ./test_x86_emulator
yields:

  Testing AVX2 256bit single native execution...okay
  Testing AVX2 256bit single 64-bit code sequence...[line 933] failed!

The bug is that libc's memcpy() in read() uses %xmm8 (specifically, in
__memcpy_sse2_unaligned()), which corrupts %ymm8 behind the back of the AVX2
test code.

Introduce wrappers (and machinery to forward calls to those wrappers)
saving/restoring FPU state around certain library calls.

Reported-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-and-tested-by: Andrew Cooper <andrew.cooper3@citrix.com>

2018-03-09 15:42:23 +00:00

..

blowfish.c

Replace FSF street address with canonical URL

2015-07-29 11:14:07 +01:00

Makefile

x86emul/test: wrap libc functions with FPU save/restore code

2018-03-09 15:42:23 +00:00

simd-fma.c

x86emul: support XOP insns

2018-03-05 16:23:52 +01:00

simd-sg.c

x86emul: support AVX2 gather insns

2018-03-05 16:23:06 +01:00

simd.c

x86emul: support XOP insns

2018-03-05 16:23:52 +01:00

simd.h

x86emul: support FMA4 insns

2018-02-01 11:31:55 +01:00

test_x86_emulator.c

x86emul: support XOP insns

2018-03-05 16:23:52 +01:00

testcase.mk

x86emul/test: split generic and testcase specific parts

2017-02-24 17:22:13 +01:00

wrappers.c

x86emul/test: wrap libc functions with FPU save/restore code

2018-03-09 15:42:23 +00:00

x86-emulate.c

tests/x86emul: Helpers to save and restore FPU state

2018-03-09 15:42:23 +00:00

x86-emulate.h

x86emul/test: wrap libc functions with FPU save/restore code

2018-03-09 15:42:23 +00:00