glibc/sysdeps/loongarch/configure

54 lines
1.7 KiB
Plaintext
Raw Normal View History

2022-07-19 01:22:07 +00:00
# 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 :
$as_echo_n "(cached) " >&6
else
cat > conftest.S << EOF
.global _start
.type _start, @function
_start:
li.w \$a7, 93
/* This ensures the assembler supports explicit reloc. */
pcalau12i \$a0, %pc_hi20(x)
ld.w \$a0, \$a0, %pc_lo12(x)
syscall 0
.data
x:
.word 0
/* This should produce an R_LARCH_RELATIVE in the static PIE. */
.dword _start
EOF
libc_cv_static_pie_on_loongarch=no
if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -static-pie -nostdlib -fPIE -o conftest conftest.S'
{ { eval echo "\"\$as_me\":${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 $READELF -Wr conftest | grep -q R_LARCH_RELATIVE'
{ { eval echo "\"\$as_me\":${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; }; }
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