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bbfb54930c
Since shadow stack is only supported for x86-64, ignore --enable-cet for i386. Always setting $(enable-cet) for i386 to "no" to support ifneq ($(enable-cet),no) in x86 Makefiles. We can't use ifeq ($(enable-cet),yes) since $(enable-cet) can be "yes", "no" or "permissive". Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
105 lines
3.3 KiB
Plaintext
Executable File
105 lines
3.3 KiB
Plaintext
Executable File
# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
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# Local configure fragment for sysdeps/x86_64.
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{ printf "%s\n" "$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 = $libc_cv_cc_mprefer_vector_width"
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if test x"$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 = $enable_cet"
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test -n "$critic_missing" && as_fn_error $? "
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*** $critic_missing" "$LINENO" 5
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