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|
# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
# Local configure fragment for sysdeps/loongarch/elf.
$as_echo "#define HIDDEN_VAR_NEEDS_DYNAMIC_RELOC 1" >>confdefs.h
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the toolchain is sufficient to build static PIE on LoongArch" >&5
$as_echo_n "checking if the toolchain is sufficient to build static PIE on LoongArch... " >&6; }
if ${libc_cv_static_pie_on_loongarch+:} false; then :
$as_echo_n "(cached) " >&6
else
cat > conftest1.S <<\EOF
.global _start
.type _start, @function
_start:
li.w $a7, 93
/* This ensures the assembler supports explicit reloc. */
pcalau12i $a0, %pc_hi20(x)
ld.w $a0, $a0, %pc_lo12(x)
syscall 0
.data
x:
.word 0
/* This should produce an R_LARCH_RELATIVE in the static PIE. */
.dword _start
EOF
cat > conftest2.S <<\EOF
.global f
.type f, @function
f:
/* The linker should be able to handle this and produce a PLT entry. */
la.pcrel $t0, $t0, external_func
jirl $zero, $t0, 0
EOF
libc_cv_static_pie_on_loongarch=no
if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -static-pie -nostdlib -fPIE -o conftest1 conftest1.S'
{ { eval echo "\"\$as_me\":${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; }; } \
&& { ac_try='LC_ALL=C $READELF -Wr conftest1 | grep -q R_LARCH_RELATIVE'
{ { eval echo "\"\$as_me\":${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; }; } \
&& ! { ac_try='LC_ALL=C $READELF -Wl conftest1 | grep -q INTERP'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; } \
&& { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -shared -fPIC -o conftest2.so conftest2.S'
{ { eval echo "\"\$as_me\":${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; }; } \
&& { ac_try='LC_ALL=C $READELF -Wr conftest2.so | grep -q 'R_LARCH_JUMP_SLOT.*external_func''
{ { eval echo "\"\$as_me\":${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_static_pie_on_loongarch=yes
fi
rm -rf conftest*
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_static_pie_on_loongarch" >&5
$as_echo "$libc_cv_static_pie_on_loongarch" >&6; }
if test "$libc_cv_static_pie_on_loongarch" = yes; then
$as_echo "#define SUPPORT_STATIC_PIE 1" >>confdefs.h
fi
# Check if gcc supports option -mcmodel=medium.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports option -mcmodel=medium" >&5
$as_echo_n "checking whether $CC supports option -mcmodel=medium... " >&6; }
if ${libc_cv_loongarch_cmodel_medium+:} false; then :
$as_echo_n "(cached) " >&6
else
if { ac_try='${CC-cc} -c $CFLAGS -mcmodel=medium /dev/null 1>&5'
{ { eval echo "\"\$as_me\":${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_loongarch_cmodel_medium=yes
else
libc_cv_loongarch_cmodel_medium=no
fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_loongarch_cmodel_medium" >&5
$as_echo "$libc_cv_loongarch_cmodel_medium" >&6; }
config_vars="$config_vars
have-cmodel-medium = $libc_cv_loongarch_cmodel_medium"
# Check if asm support vector instructions.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for vector support in assembler" >&5
$as_echo_n "checking for vector support in assembler... " >&6; }
if ${libc_cv_loongarch_vec_asm+:} false; then :
$as_echo_n "(cached) " >&6
else
cat > conftest.s <<\EOF
vld $vr0, $sp, 0
EOF
if { ac_try='${CC-cc} -c $CFLAGS conftest.s -o conftest 1>&5'
{ { eval echo "\"\$as_me\":${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_loongarch_vec_asm=yes
else
libc_cv_loongarch_vec_asm=no
fi
rm -f conftest*
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_loongarch_vec_asm" >&5
$as_echo "$libc_cv_loongarch_vec_asm" >&6; }
if test $libc_cv_loongarch_vec_asm = yes; then
$as_echo "#define HAVE_LOONGARCH_VEC_ASM 1" >>confdefs.h
fi
|
