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c6cb8783b5
Bump autoconf requirement to 2.71 to allow regenerating configure on more recent distributions. autoconf 2.71 has been in Fedora since F36 and is the current version in Debian stable (bookworm). It appears to be current in Gentoo as well. All sysdeps configure and preconfigure scripts have also been regenerated; all changes are trivial transformations that do not affect functionality. Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
136 lines
4.7 KiB
Plaintext
136 lines
4.7 KiB
Plaintext
# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
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# Local configure fragment for sysdeps/loongarch/elf.
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printf "%s\n" "#define HIDDEN_VAR_NEEDS_DYNAMIC_RELOC 1" >>confdefs.h
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if the toolchain is sufficient to build static PIE on LoongArch" >&5
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printf %s "checking if the toolchain is sufficient to build static PIE on LoongArch... " >&6; }
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if test ${libc_cv_static_pie_on_loongarch+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 > conftest1.S <<\EOF
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.global _start
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.type _start, @function
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_start:
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li.w $a7, 93
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/* This ensures the assembler supports explicit reloc. */
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pcalau12i $a0, %pc_hi20(x)
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ld.w $a0, $a0, %pc_lo12(x)
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syscall 0
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.data
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x:
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.word 0
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/* This should produce an R_LARCH_RELATIVE in the static PIE. */
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.dword _start
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EOF
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cat > conftest2.S <<\EOF
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.global f
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.type f, @function
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f:
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/* The linker should be able to handle this and produce a PLT entry. */
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la.pcrel $t0, $t0, external_func
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jirl $zero, $t0, 0
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EOF
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libc_cv_static_pie_on_loongarch=no
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -static-pie -nostdlib -fPIE -o conftest1 conftest1.S'
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{ { eval echo "\"\$as_me\":${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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&& { ac_try='LC_ALL=C $READELF -Wr conftest1 | grep -q R_LARCH_RELATIVE'
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{ { eval echo "\"\$as_me\":${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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&& ! { ac_try='LC_ALL=C $READELF -Wl conftest1 | grep -q INTERP'
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{ { eval echo "\"\$as_me\":${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 $ac_status = 0; }; } \
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&& { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -shared -fPIC -o conftest2.so conftest2.S'
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{ { eval echo "\"\$as_me\":${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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&& { ac_try='LC_ALL=C $READELF -Wr conftest2.so | grep -q 'R_LARCH_JUMP_SLOT.*external_func''
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{ { eval echo "\"\$as_me\":${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 $ac_status = 0; }; }
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then
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libc_cv_static_pie_on_loongarch=yes
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fi
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rm -rf conftest*
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_static_pie_on_loongarch" >&5
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printf "%s\n" "$libc_cv_static_pie_on_loongarch" >&6; }
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if test "$libc_cv_static_pie_on_loongarch" = yes; then
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printf "%s\n" "#define SUPPORT_STATIC_PIE 1" >>confdefs.h
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fi
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# Check if gcc supports option -mcmodel=medium.
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC supports option -mcmodel=medium" >&5
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printf %s "checking whether $CC supports option -mcmodel=medium... " >&6; }
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if test ${libc_cv_loongarch_cmodel_medium+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} -c $CFLAGS -mcmodel=medium /dev/null 1>&5'
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{ { eval echo "\"\$as_me\":${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 $ac_status = 0; }; }; then
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libc_cv_loongarch_cmodel_medium=yes
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else
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libc_cv_loongarch_cmodel_medium=no
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fi
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_loongarch_cmodel_medium" >&5
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printf "%s\n" "$libc_cv_loongarch_cmodel_medium" >&6; }
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config_vars="$config_vars
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have-cmodel-medium = $libc_cv_loongarch_cmodel_medium"
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# Check if asm support vector instructions.
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for vector support in assembler" >&5
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printf %s "checking for vector support in assembler... " >&6; }
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if test ${libc_cv_loongarch_vec_asm+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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vld $vr0, $sp, 0
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EOF
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if { ac_try='${CC-cc} -c $CFLAGS conftest.s -o conftest 1>&5'
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{ { eval echo "\"\$as_me\":${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 $ac_status = 0; }; }; then
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libc_cv_loongarch_vec_asm=yes
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else
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libc_cv_loongarch_vec_asm=no
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fi
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rm -f conftest*
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_loongarch_vec_asm" >&5
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printf "%s\n" "$libc_cv_loongarch_vec_asm" >&6; }
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if test $libc_cv_loongarch_vec_asm = yes; then
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printf "%s\n" "#define HAVE_LOONGARCH_VEC_ASM 1" >>confdefs.h
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fi
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