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| author | H.J. Lu <hjl.tools@gmail.com> | 2016-07-01 05:54:43 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2016-07-01 06:03:05 -0700 |
| commit | f43cb35c9b3c35addc6dc0f1427caf51786ca1d2 (patch) | |
| tree | a2c943de50b515cca9d14ea8e26d6c76152de139 /sysdeps/x86_64/dl-trampoline.S | |
| parent | ee2196bb6766ca7e63a1ba22ebb7619a3266776a (diff) | |
| download | glibc-f43cb35c9b3c35addc6dc0f1427caf51786ca1d2.zip glibc-f43cb35c9b3c35addc6dc0f1427caf51786ca1d2.tar.gz glibc-f43cb35c9b3c35addc6dc0f1427caf51786ca1d2.tar.bz2 | |
Require binutils 2.24 to build x86-64 glibc [BZ #20139]
If assembler doesn't support AVX512DQ, _dl_runtime_resolve_avx is used
to save the first 8 vector registers, which only saves the lower 256
bits of vector register, for lazy binding. When it is called on AVX512
platform, the upper 256 bits of ZMM registers are clobbered. Parameters
passed in ZMM registers will be wrong when the function is called the
first time. This patch requires binutils 2.24, whose assembler can store
and load ZMM registers, to build x86-64 glibc. Since mathvec library
needs assembler support for AVX512DQ, we disable mathvec if assembler
doesn't support AVX512DQ.
[BZ #20139]
* config.h.in (HAVE_AVX512_ASM_SUPPORT): Renamed to ...
(HAVE_AVX512DQ_ASM_SUPPORT): This.
* sysdeps/x86_64/configure.ac: Require assembler from binutils
2.24 or above.
(HAVE_AVX512_ASM_SUPPORT): Removed.
(HAVE_AVX512DQ_ASM_SUPPORT): New.
* sysdeps/x86_64/configure: Regenerated.
* sysdeps/x86_64/dl-trampoline.S: Make HAVE_AVX512_ASM_SUPPORT
check unconditional.
* sysdeps/x86_64/multiarch/ifunc-impl-list.c: Likewise.
* sysdeps/x86_64/multiarch/memcpy.S: Likewise.
* sysdeps/x86_64/multiarch/memcpy_chk.S: Likewise.
* sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S:
Likewise.
* sysdeps/x86_64/multiarch/memmove-avx512-unaligned-erms.S:
Likewise.
* sysdeps/x86_64/multiarch/memmove.S: Likewise.
* sysdeps/x86_64/multiarch/memmove_chk.S: Likewise.
* sysdeps/x86_64/multiarch/mempcpy.S: Likewise.
* sysdeps/x86_64/multiarch/mempcpy_chk.S: Likewise.
* sysdeps/x86_64/multiarch/memset-avx512-no-vzeroupper.S:
Likewise.
* sysdeps/x86_64/multiarch/memset-avx512-unaligned-erms.S:
Likewise.
* sysdeps/x86_64/multiarch/memset.S: Likewise.
* sysdeps/x86_64/multiarch/memset_chk.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_cos8_core_avx512.S: Check
HAVE_AVX512DQ_ASM_SUPPORT instead of HAVE_AVX512_ASM_SUPPORT.
* sysdeps/x86_64/fpu/multiarch/svml_d_exp8_core_avx512.S:
Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_log8_core_avx512.S:
Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_pow8_core_avx512.S:
Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_sin8_core_avx512.S:
Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_sincos8_core_avx512.:
Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_cosf16_core_avx512.S:
Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_expf16_core_avx512.S:
Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_logf16_core_avx512.S:
Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_powf16_core_avx512.S:
Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_sincosf16_core_avx51:
Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_sinf16_core_avx512.S:
Likewise.
Diffstat (limited to 'sysdeps/x86_64/dl-trampoline.S')
| -rw-r--r-- | sysdeps/x86_64/dl-trampoline.S | 37 |
1 files changed, 15 insertions, 22 deletions
diff --git a/sysdeps/x86_64/dl-trampoline.S b/sysdeps/x86_64/dl-trampoline.S index 39b8771..12f1a5cf 100644 --- a/sysdeps/x86_64/dl-trampoline.S +++ b/sysdeps/x86_64/dl-trampoline.S @@ -77,30 +77,23 @@ #define RESTORE_AVX -#ifdef HAVE_AVX512_ASM_SUPPORT -# define VEC_SIZE 64 -# define VMOVA vmovdqa64 -# if DL_RUNTIME_RESOLVE_REALIGN_STACK || VEC_SIZE <= DL_STACK_ALIGNMENT -# define VMOV vmovdqa64 -# else -# define VMOV vmovdqu64 -# endif -# define VEC(i) zmm##i -# define _dl_runtime_resolve _dl_runtime_resolve_avx512 -# define _dl_runtime_profile _dl_runtime_profile_avx512 -# include "dl-trampoline.h" -# undef _dl_runtime_resolve -# undef _dl_runtime_profile -# undef VEC -# undef VMOV -# undef VMOVA -# undef VEC_SIZE +#define VEC_SIZE 64 +#define VMOVA vmovdqa64 +#if DL_RUNTIME_RESOLVE_REALIGN_STACK || VEC_SIZE <= DL_STACK_ALIGNMENT +# define VMOV vmovdqa64 #else -strong_alias (_dl_runtime_resolve_avx, _dl_runtime_resolve_avx512) - .hidden _dl_runtime_resolve_avx512 -strong_alias (_dl_runtime_profile_avx, _dl_runtime_profile_avx512) - .hidden _dl_runtime_profile_avx512 +# define VMOV vmovdqu64 #endif +#define VEC(i) zmm##i +#define _dl_runtime_resolve _dl_runtime_resolve_avx512 +#define _dl_runtime_profile _dl_runtime_profile_avx512 +#include "dl-trampoline.h" +#undef _dl_runtime_resolve +#undef _dl_runtime_profile +#undef VEC +#undef VMOV +#undef VMOVA +#undef VEC_SIZE #define VEC_SIZE 32 #define VMOVA vmovdqa |