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author | Igor Zamyatin <igor.zamyatin@intel.com> | 2014-03-13 11:10:22 -0700 |
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committer | H.J. Lu <hjl.tools@gmail.com> | 2014-03-13 11:19:08 -0700 |
commit | 2d63a517e4084ec80403cd9f278690fa8b676cc4 (patch) | |
tree | d5d5dd025d9a59bd41fedf9c16799271b5dbb722 /sysdeps/x86_64/configure | |
parent | 44c4e5d598bfcbb309f05ceb7a57ab02662e7f34 (diff) | |
download | glibc-2d63a517e4084ec80403cd9f278690fa8b676cc4.zip glibc-2d63a517e4084ec80403cd9f278690fa8b676cc4.tar.gz glibc-2d63a517e4084ec80403cd9f278690fa8b676cc4.tar.bz2 |
Save and restore AVX-512 zmm registers to x86-64 ld.so
AVX-512 ISA adds 512-bit zmm registers. This patch updates
_dl_runtime_profile to pass zmm registers to run-time audit. It also
changes _dl_x86_64_save_sse and _dl_x86_64_restore_sse to upport zmm
registers, which are called when only when RTLD_PREPARE_FOREIGN_CALL
is used. Its performance impact is minimum.
* config.h.in (HAVE_AVX512_SUPPORT): New #undef.
(HAVE_AVX512_ASM_SUPPORT): Likewise.
* sysdeps/x86_64/bits/link.h (La_x86_64_zmm): New.
(La_x86_64_vector): Add zmm.
* sysdeps/x86_64/Makefile (tests): Add tst-audit10.
(modules-names): Add tst-auditmod10a and tst-auditmod10b.
($(objpfx)tst-audit10): New target.
($(objpfx)tst-audit10.out): Likewise.
(tst-audit10-ENV): New.
(AVX512-CFLAGS): Likewise.
(CFLAGS-tst-audit10.c): Likewise.
(CFLAGS-tst-auditmod10a.c): Likewise.
(CFLAGS-tst-auditmod10b.c): Likewise.
* sysdeps/x86_64/configure.ac: Set config-cflags-avx512,
HAVE_AVX512_SUPPORT and HAVE_AVX512_ASM_SUPPORT.
* sysdeps/x86_64/configure: Regenerated.
* sysdeps/x86_64/dl-trampoline.S (_dl_runtime_profile): Add
AVX-512 zmm register support.
(_dl_x86_64_save_sse): Likewise.
(_dl_x86_64_restore_sse): Likewise.
* sysdeps/x86_64/dl-trampoline.h: Updated to support different
size vector registers.
* sysdeps/x86_64/link-defines.sym (YMM_SIZE): New.
(ZMM_SIZE): Likewise.
* sysdeps/x86_64/tst-audit10.c: New file.
* sysdeps/x86_64/tst-auditmod10a.c: Likewise.
* sysdeps/x86_64/tst-auditmod10b.c: Likewise.
Diffstat (limited to 'sysdeps/x86_64/configure')
-rw-r--r-- | sysdeps/x86_64/configure | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/sysdeps/x86_64/configure b/sysdeps/x86_64/configure index 5a83a53..b931e68 100644 --- a/sysdeps/x86_64/configure +++ b/sysdeps/x86_64/configure @@ -95,6 +95,59 @@ fi config_vars="$config_vars config-cflags-avx = $libc_cv_cc_avx" +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX512 support" >&5 +$as_echo_n "checking for AVX512 support... " >&6; } +if ${libc_cv_cc_avx512+:} false; then : + $as_echo_n "(cached) " >&6 +else + if { ac_try='${CC-cc} -mavx512f -xc /dev/null -S -o /dev/null' + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 + (eval $ac_try) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; }; then : + libc_cv_cc_avx512=yes +else + libc_cv_cc_avx512=no +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_avx512" >&5 +$as_echo "$libc_cv_cc_avx512" >&6; } +if test $libc_cv_cc_avx512 = yes; then + $as_echo "#define HAVE_AVX512_SUPPORT 1" >>confdefs.h + +fi +config_vars="$config_vars +config-cflags-avx512 = $libc_cv_cc_avx512" + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX512 support in assembler" >&5 +$as_echo_n "checking for AVX512 support in assembler... " >&6; } +if ${libc_cv_asm_avx512+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat > conftest.s <<\EOF + vmovdqu64 %zmm0, (%rsp) +EOF +if { ac_try='${CC-cc} -c $ASFLAGS conftest.s 1>&5' + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 + (eval $ac_try) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; }; then + libc_cv_asm_avx512=yes +else + libc_cv_asm_avx512=no +fi +rm -f conftest* +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_avx512" >&5 +$as_echo "$libc_cv_asm_avx512" >&6; } +if test $libc_cv_asm_avx512 == yes; then + $as_echo "#define HAVE_AVX512_ASM_SUPPORT 1" >>confdefs.h + +fi + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX encoding of SSE instructions" >&5 $as_echo_n "checking for AVX encoding of SSE instructions... " >&6; } if ${libc_cv_cc_sse2avx+:} false; then : |