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115d242456
https://sourceware.org/bugzilla/show_bug.cgi?id=21782 dropped an ld diagnostic for R_X86_64_PC32 referencing an undefined weak symbol in -pie links. Arguably keeping the diagnostic like other ports is more correct, since statically resolving movl foo(%rip), %eax to the link-time zero address produces a corrupted output. It turns out that --enable-static-pie builds do not depend on the ld behavior. GCC generates GOT indirection for weak declarations for -fPIE/-fPIC, so what ld does with the PC-relative relocation doesn't really matter. Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
118 lines
3.6 KiB
Plaintext
Executable File
118 lines
3.6 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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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX512DQ support in assembler" >&5
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$as_echo_n "checking for AVX512DQ support in assembler... " >&6; }
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if ${libc_cv_asm_avx512dq+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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cat > conftest.s <<\EOF
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vandpd (%rax), %zmm6, %zmm1
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EOF
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if { ac_try='${CC-cc} -c $ASFLAGS conftest.s 1>&5'
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{ { eval echo "\"\$as_me\":${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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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then
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libc_cv_asm_avx512dq=yes
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else
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libc_cv_asm_avx512dq=no
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fi
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rm -f conftest*
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_avx512dq" >&5
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$as_echo "$libc_cv_asm_avx512dq" >&6; }
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if test $libc_cv_asm_avx512dq = yes; then
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$as_echo "#define HAVE_AVX512DQ_ASM_SUPPORT 1" >>confdefs.h
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX512 support" >&5
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$as_echo_n "checking for AVX512 support... " >&6; }
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if ${libc_cv_cc_avx512+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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if { ac_try='${CC-cc} -mavx512f -xc /dev/null -S -o /dev/null'
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{ { eval echo "\"\$as_me\":${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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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then :
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libc_cv_cc_avx512=$libc_cv_asm_avx512dq
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else
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libc_cv_cc_avx512=no
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fi
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_avx512" >&5
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$as_echo "$libc_cv_cc_avx512" >&6; }
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if test $libc_cv_cc_avx512 = yes; then
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$as_echo "#define HAVE_AVX512_SUPPORT 1" >>confdefs.h
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fi
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config_vars="$config_vars
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config-cflags-avx512 = $libc_cv_cc_avx512"
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking -mprefer-vector-width=128" >&5
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$as_echo_n "checking -mprefer-vector-width=128... " >&6; }
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if ${libc_cv_cc_mprefer_vector_width+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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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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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then :
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libc_cv_cc_mprefer_vector_width=yes
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else
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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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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_mprefer_vector_width" >&5
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$as_echo "$libc_cv_cc_mprefer_vector_width" >&6; }
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config_vars="$config_vars
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config-cflags-mprefer-vector-width = $libc_cv_cc_mprefer_vector_width"
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for Intel MPX support" >&5
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$as_echo_n "checking for Intel MPX support... " >&6; }
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if ${libc_cv_asm_mpx+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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cat > conftest.s <<\EOF
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bndmov %bnd0,(%rsp)
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EOF
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if { ac_try='${CC-cc} -c $ASFLAGS conftest.s 1>&5'
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{ { eval echo "\"\$as_me\":${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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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then
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libc_cv_asm_mpx=yes
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else
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libc_cv_asm_mpx=no
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fi
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rm -f conftest*
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_mpx" >&5
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$as_echo "$libc_cv_asm_mpx" >&6; }
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if test $libc_cv_asm_mpx = yes; then
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$as_echo "#define HAVE_MPX_SUPPORT 1" >>confdefs.h
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fi
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if test x"$build_mathvec" = xnotset; then
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build_mathvec=yes
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fi
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$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
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$as_echo "#define SUPPORT_STATIC_PIE 1" >>confdefs.h
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test -n "$critic_missing" && as_fn_error $? "
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*** $critic_missing" "$LINENO" 5
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