From 2d63a517e4084ec80403cd9f278690fa8b676cc4 Mon Sep 17 00:00:00 2001 From: Igor Zamyatin Date: Thu, 13 Mar 2014 11:10:22 -0700 Subject: 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. --- config.h.in | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'config.h.in') diff --git a/config.h.in b/config.h.in index ed3c593..3fc34bd 100644 --- a/config.h.in +++ b/config.h.in @@ -98,6 +98,12 @@ /* Define if gcc supports VEX encoding. */ #undef HAVE_SSE2AVX_SUPPORT +/* Define if compiler supports AVX512. */ +#undef HAVE_AVX512_SUPPORT + +/* Define if assembler supports AVX512. */ +#undef HAVE_AVX512_ASM_SUPPORT + /* Define if gcc supports FMA4. */ #undef HAVE_FMA4_SUPPORT -- cgit v1.1