diff options
Diffstat (limited to 'sysdeps/loongarch/configure')
-rw-r--r-- | sysdeps/loongarch/configure | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/sysdeps/loongarch/configure b/sysdeps/loongarch/configure index 43b54d4965..6edd6d08a5 100644 --- a/sysdeps/loongarch/configure +++ b/sysdeps/loongarch/configure @@ -3,3 +3,51 @@ $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 |