diff options
Diffstat (limited to 'gcc/configure')
| -rwxr-xr-x | gcc/configure | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/gcc/configure b/gcc/configure index 62e4891..09fc0aa 100755 --- a/gcc/configure +++ b/gcc/configure @@ -16053,10 +16053,46 @@ EOF gcc_cv_ld_eh_gc_sections=no elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then gcc_cv_ld_eh_gc_sections=yes + # If no COMDAT groups, the compiler will emit .gnu.linkonce.t. sections. + if test x$gcc_cv_as_comdat_group != xyes; then + gcc_cv_ld_eh_gc_sections=no + cat > conftest.s <<EOF + .section .text +.globl _start + .type _start, @function +_start: + .long foo + .size _start, .-_start + .section .gnu.linkonce.t.foo,"ax",@progbits + .type foo, @function +foo: + .long 0 + .size foo, .-foo + .section .gcc_except_table.foo,"a",@progbits +.L0: + .long 0 + .section .eh_frame,"a",@progbits + .long .L0 +EOF + if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then + if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ + | grep "gc-sections option ignored" > /dev/null; then + gcc_cv_ld_eh_gc_sections=no + elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then + gcc_cv_ld_eh_gc_sections=yes + fi + fi + fi fi fi rm -f conftest.s conftest.o conftest fi +case "$target" in + hppa*-*-linux*) + # ??? This apparently exposes a binutils bug with PC-relative relocations. + gcc_cv_ld_eh_gc_sections=no + ;; +esac if test x$gcc_cv_ld_eh_gc_sections = xyes; then cat >>confdefs.h <<\_ACEOF |