diff options
Diffstat (limited to 'meta/recipes-core/glibc/glibc/0031-x86-Require-full-ISA-support-for-x86-64-level-marker.patch')
| -rw-r--r-- | meta/recipes-core/glibc/glibc/0031-x86-Require-full-ISA-support-for-x86-64-level-marker.patch | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/meta/recipes-core/glibc/glibc/0031-x86-Require-full-ISA-support-for-x86-64-level-marker.patch b/meta/recipes-core/glibc/glibc/0031-x86-Require-full-ISA-support-for-x86-64-level-marker.patch deleted file mode 100644 index 3cb60b2e55..0000000000 --- a/meta/recipes-core/glibc/glibc/0031-x86-Require-full-ISA-support-for-x86-64-level-marker.patch +++ /dev/null @@ -1,116 +0,0 @@ -From b1971f6f1331d738d1d6b376b4741668a7546125 Mon Sep 17 00:00:00 2001 -From: "H.J. Lu" <hjl.tools@gmail.com> -Date: Tue, 2 Feb 2021 13:45:58 -0800 -Subject: [PATCH] x86: Require full ISA support for x86-64 level marker [BZ #27318] - -Since -march=sandybridge enables ISAs in x86-64 ISA level v3, the v3 -marker is set on libc.so. We couldn't set the needed ISA marker to v2 -since this libc won't run on all v2 machines. Technically, the v3 marker -is correct. But the resulting libc.so won't run on Sandy Brigde, which -is a v2 machine, even when libc is compiled with -march=sandybridge: - -$ ./elf/ld.so ./libc.so -./libc.so: (p) CPU ISA level is lower than required: needed: 7; got: 3 - -Instead, we require full ISA support for x86-64 level marker and disable -x86-64 level marker for -march=sandybridge which enables ISAs between v2 -and v3. - -Upstream-Status: Submitted [https://sourceware.org/pipermail/libc-alpha/2021-February/122297.html] -Signed-off-by: Khem Raj <raj.khem@gmail.com> ---- - - sysdeps/x86/configure | 7 ++++++- - sysdeps/x86/configure.ac | 2 +- - sysdeps/x86/isa-level.c | 21 ++++++++++++++++++++- - 3 files changed, 27 insertions(+), 3 deletions(-) - -diff --git a/sysdeps/x86/configure b/sysdeps/x86/configure -index 5e32dc62b3..5b20646843 100644 ---- a/sysdeps/x86/configure -+++ b/sysdeps/x86/configure -@@ -133,7 +133,12 @@ if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -nostartfiles -nostdlib -r -o conftest c - $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 - test $ac_status = 0; }; }; then - count=`LC_ALL=C $READELF -n conftest | grep NT_GNU_PROPERTY_TYPE_0 | wc -l` -- if test "$count" = 1; then -+ if test "$count" = 1 && { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -DINCLUDE_X86_ISA_LEVEL -S -o conftest.s $srcdir/sysdeps/x86/isa-level.c' -+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 -+ (eval $ac_try) 2>&5 -+ ac_status=$? -+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 -+ test $ac_status = 0; }; }; then - libc_cv_include_x86_isa_level=yes - fi - fi -diff --git a/sysdeps/x86/configure.ac b/sysdeps/x86/configure.ac -index f94088f377..54ecd33d2c 100644 ---- a/sysdeps/x86/configure.ac -+++ b/sysdeps/x86/configure.ac -@@ -100,7 +100,7 @@ EOF - libc_cv_include_x86_isa_level=no - if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS -nostartfiles -nostdlib -r -o conftest conftest1.S conftest2.S); then - count=`LC_ALL=C $READELF -n conftest | grep NT_GNU_PROPERTY_TYPE_0 | wc -l` -- if test "$count" = 1; then -+ if test "$count" = 1 && AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS -DINCLUDE_X86_ISA_LEVEL -S -o conftest.s $srcdir/sysdeps/x86/isa-level.c); then - libc_cv_include_x86_isa_level=yes - fi - fi -diff --git a/sysdeps/x86/isa-level.c b/sysdeps/x86/isa-level.c -index aaf524cb56..7f83449061 100644 ---- a/sysdeps/x86/isa-level.c -+++ b/sysdeps/x86/isa-level.c -@@ -25,12 +25,17 @@ - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - --#include <elf.h> -+#ifdef _LIBC -+# include <elf.h> -+#endif - - /* ELF program property for x86 ISA level. */ - #ifdef INCLUDE_X86_ISA_LEVEL - # if defined __x86_64__ || defined __FXSR__ || !defined _SOFT_FLOAT \ - || defined __MMX__ || defined __SSE__ || defined __SSE2__ -+# if !defined __SSE__ || !defined __SSE2__ -+# error "Missing ISAs for x86-64 ISA level baseline" -+# endif - # define ISA_BASELINE GNU_PROPERTY_X86_ISA_1_BASELINE - # else - # define ISA_BASELINE 0 -@@ -40,6 +45,11 @@ - || (defined __x86_64__ && defined __LAHF_SAHF__) \ - || defined __POPCNT__ || defined __SSE3__ \ - || defined __SSSE3__ || defined __SSE4_1__ || defined __SSE4_2__ -+# if !defined __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16 \ -+ || !defined __POPCNT__ || !defined __SSE3__ \ -+ || !defined __SSSE3__ || !defined __SSE4_1__ || !defined __SSE4_2__ -+# error "Missing ISAs for x86-64 ISA level v2" -+# endif - # define ISA_V2 GNU_PROPERTY_X86_ISA_1_V2 - # else - # define ISA_V2 0 -@@ -48,6 +58,10 @@ - # if defined __AVX__ || defined __AVX2__ || defined __F16C__ \ - || defined __FMA__ || defined __LZCNT__ || defined __MOVBE__ \ - || defined __XSAVE__ -+# if !defined __AVX__ || !defined __AVX2__ || !defined __F16C__ \ -+ || !defined __FMA__ || !defined __LZCNT__ -+# error "Missing ISAs for x86-64 ISA level v3" -+# endif - # define ISA_V3 GNU_PROPERTY_X86_ISA_1_V3 - # else - # define ISA_V3 0 -@@ -55,6 +69,11 @@ - - # if defined __AVX512F__ || defined __AVX512BW__ || defined __AVX512CD__ \ - || defined __AVX512DQ__ || defined __AVX512VL__ -+# if !defined __AVX512F__ || !defined __AVX512BW__ \ -+ || !defined __AVX512CD__ || !defined __AVX512DQ__ \ -+ || !defined __AVX512VL__ -+# error "Missing ISAs for x86-64 ISA level v4" -+# endif - # define ISA_V4 GNU_PROPERTY_X86_ISA_1_V4 - # else - # define ISA_V4 0 |