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https://sourceware.org/git/glibc.git
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853e915fdd
_dl_tlsdesc_dynamic should also preserve AMX registers which are
caller-saved. Add X86_XSTATE_TILECFG_ID and X86_XSTATE_TILEDATA_ID
to x86-64 TLSDESC_CALL_STATE_SAVE_MASK. Compute the AMX state size
and save it in xsave_state_full_size which is only used by
_dl_tlsdesc_dynamic_xsave and _dl_tlsdesc_dynamic_xsavec. This fixes
the AMX part of BZ #31372. Tested on AMX processor.
AMX test is enabled only for compilers with the fix for
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114098
GCC 14 and GCC 11/12/13 branches have the bug fix.
Reviewed-by: Sunil K Pandey <skpgkp2@gmail.com>
(cherry picked from commit 9b7091415a)
168 lines
5.5 KiB
Plaintext
Executable File
168 lines
5.5 KiB
Plaintext
Executable File
# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
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# Local configure fragment for sysdeps/x86_64.
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking -mprefer-vector-width=128" >&5
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printf %s "checking -mprefer-vector-width=128... " >&6; }
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if test ${libc_cv_cc_mprefer_vector_width+y}
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then :
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printf %s "(cached) " >&6
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else $as_nop
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if { ac_try='${CC-cc} -mprefer-vector-width=128 -xc /dev/null -S -o /dev/null'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }
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then :
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libc_cv_cc_mprefer_vector_width=yes
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else $as_nop
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libc_cv_cc_mprefer_vector_width=no
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fi
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_mprefer_vector_width" >&5
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printf "%s\n" "$libc_cv_cc_mprefer_vector_width" >&6; }
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config_vars="$config_vars
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config-cflags-mprefer-vector-width = $libc_cv_cc_mprefer_vector_width"
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for linker that supports -z mark-plt" >&5
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printf %s "checking for linker that supports -z mark-plt... " >&6; }
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libc_linker_feature=no
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cat > conftest.c <<EOF
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int _start (void) { return 42; }
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EOF
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
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-Wl,-z,mark-plt -nostdlib -nostartfiles
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-fPIC -shared -o conftest.so conftest.c
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1>&5'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }
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then
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if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp -Wl,-z,mark-plt -nostdlib \
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-nostartfiles -fPIC -shared -o conftest.so conftest.c 2>&1 \
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| grep "warning: -z mark-plt ignored" > /dev/null 2>&1; then
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true
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else
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libc_linker_feature=yes
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fi
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fi
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rm -f conftest*
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if test $libc_linker_feature = yes; then
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libc_cv_z_mark_plt=yes
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else
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libc_cv_z_mark_plt=no
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature" >&5
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printf "%s\n" "$libc_linker_feature" >&6; }
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config_vars="$config_vars
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have-z-mark-plt = $libc_cv_z_mark_plt"
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if test x"$build_mathvec" = xnotset; then
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build_mathvec=yes
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fi
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if test $enable_cet != no; then
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# Check if CET can be enabled.
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether CET can be enabled" >&5
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printf %s "checking whether CET can be enabled... " >&6; }
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if test ${libc_cv_x86_cet_available+y}
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then :
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printf %s "(cached) " >&6
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else $as_nop
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cat > conftest.c <<EOF
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#if !defined __CET__ || __CET__ != 3
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# error CET isn't available.
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#endif
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EOF
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if { ac_try='${CC-cc} -c $CFLAGS -fcf-protection -include cet.h conftest.c 1>&5'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then
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libc_cv_x86_cet_available=yes
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else
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libc_cv_x86_cet_available=no
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fi
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rm -rf conftest*
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_x86_cet_available" >&5
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printf "%s\n" "$libc_cv_x86_cet_available" >&6; }
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if test $libc_cv_x86_cet_available != yes; then
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as_fn_error $? "$CC doesn't support CET" "$LINENO" 5
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fi
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fi
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if test $enable_cet != no; then
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# Check if assembler supports CET.
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether assembler supports CET" >&5
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printf %s "checking whether assembler supports CET... " >&6; }
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if test ${libc_cv_x86_cet_as+y}
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then :
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printf %s "(cached) " >&6
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else $as_nop
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cat > conftest.s <<EOF
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incsspd %ecx
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EOF
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if { ac_try='${CC-cc} -c $CFLAGS conftest.s -o conftest.o 1>&5'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then
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libc_cv_x86_cet_as=yes
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else
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libc_cv_x86_cet_as=no
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fi
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rm -rf conftest*
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_x86_cet_as" >&5
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printf "%s\n" "$libc_cv_x86_cet_as" >&6; }
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if test $libc_cv_x86_cet_as = no; then
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as_fn_error $? "$AS doesn't support CET" "$LINENO" 5
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fi
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fi
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if test $enable_cet = yes; then
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printf "%s\n" "#define DEFAULT_DL_X86_CET_CONTROL cet_elf_property" >>confdefs.h
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elif test $enable_cet = permissive; then
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printf "%s\n" "#define DEFAULT_DL_X86_CET_CONTROL cet_permissive" >>confdefs.h
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fi
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config_vars="$config_vars
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enable-cet = $enable_cet"
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# Check if -mamx-tile works properly.
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether -mamx-tile works properly" >&5
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printf %s "checking whether -mamx-tile works properly... " >&6; }
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if test ${libc_cv_x86_have_amx_tile+y}
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then :
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printf %s "(cached) " >&6
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else $as_nop
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cat > conftest.c <<EOF
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#include <x86intrin.h>
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EOF
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libc_cv_x86_have_amx_tile=no
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if { ac_try='${CC-cc} -E $CFLAGS -mamx-tile conftest.c > conftest.i'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then
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if grep -q __builtin_ia32_ldtilecfg conftest.i; then
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libc_cv_x86_have_amx_tile=yes
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fi
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fi
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rm -rf conftest*
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_x86_have_amx_tile" >&5
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printf "%s\n" "$libc_cv_x86_have_amx_tile" >&6; }
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config_vars="$config_vars
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have-mamx-tile = $libc_cv_x86_have_amx_tile"
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test -n "$critic_missing" && as_fn_error $? "
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*** $critic_missing" "$LINENO" 5
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