diff options
Diffstat (limited to 'gcc/configure.ac')
| -rw-r--r-- | gcc/configure.ac | 39 |
1 files changed, 34 insertions, 5 deletions
diff --git a/gcc/configure.ac b/gcc/configure.ac index fabd48e5a25..b0f38d1e430 100644 --- a/gcc/configure.ac +++ b/gcc/configure.ac @@ -4164,13 +4164,13 @@ tls_ld: # Enforce 32-bit output with gas and gld. if test x$gas = xyes; then - as_ix86_tls_ldm_opt="--32" + as_ix86_gas_32_opt="--32" fi if echo "$ld_ver" | grep GNU > /dev/null; then if $gcc_cv_ld -V 2>/dev/null | grep elf_i386_sol2 > /dev/null; then - ld_ix86_tls_ldm_opt="-melf_i386_sol2" + ld_ix86_gld_32_opt="-melf_i386_sol2" else - ld_ix86_tls_ldm_opt="-melf_i386" + ld_ix86_gld_32_opt="-melf_i386" fi fi conftest_s=' @@ -4186,10 +4186,10 @@ _start: value:' gcc_GAS_CHECK_FEATURE([R_386_TLS_LDM reloc], gcc_cv_as_ix86_tlsldm,, - [$as_ix86_tls_ldm_opt], + [$as_ix86_gas_32_opt], [$conftest_s], [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ - && $gcc_cv_ld $ld_ix86_tls_ldm_opt -o conftest conftest.o $ld_tls_libs -lc > /dev/null 2>&1; then + && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o $ld_tls_libs -lc > /dev/null 2>&1; then if $gcc_cv_objdump -d conftest 2>/dev/null | grep nop > /dev/null \ || dis conftest 2>/dev/null | grep nop > /dev/null; then gcc_cv_as_ix86_tlsldm=yes @@ -4200,6 +4200,35 @@ value:' [`if test $gcc_cv_as_ix86_tlsldm = yes; then echo 1; else echo 0; fi`], [Define to 1 if your assembler and linker support @tlsldm.]) + conftest_s=' + .data +bar: + .byte 1 + .text + .global _start +_start: + cmpl $0, bar@GOT + jmp *_start@GOT' + gcc_GAS_CHECK_FEATURE([R_386_GOT32X reloc], + gcc_cv_as_ix86_got32x,, + [$as_ix86_gas_32_opt], + [$conftest_s], + [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ + && test x$gcc_cv_readelf != x \ + && $gcc_cv_readelf --relocs --wide conftest.o 2>&1 \ + | grep R_386_GOT32X > /dev/null 2>&1 \ + && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o > /dev/null 2>&1; then + if $gcc_cv_objdump -dw conftest 2>&1 \ + | grep 0xffffff > /dev/null 2>&1; then + gcc_cv_as_ix86_got32x=no + else + gcc_cv_as_ix86_got32x=yes + fi + fi + rm -f conftest]) + AC_DEFINE_UNQUOTED(HAVE_AS_IX86_GOT32X, + [`if test x"$gcc_cv_as_ix86_got32x" = xyes; then echo 1; else echo 0; fi`], + [Define 0/1 if your assembler and linker support @GOT.]) ;; ia64*-*-*) |