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| author | Richard Sandiford <rdsandiford@googlemail.com> | 2009-09-20 10:36:05 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2009-09-20 10:36:05 +0000 |
| commit | 49576e25cbab7891bc3296e2bcd84d0c284560a6 (patch) | |
| tree | a84e1e4e16568ba17408fdb8f2fe99d6a35e7ea4 /gcc/configure | |
| parent | 63c6c7e070b9c79d0a797ed50fa90c8f1d35480d (diff) | |
| download | gcc-49576e25cbab7891bc3296e2bcd84d0c284560a6.zip gcc-49576e25cbab7891bc3296e2bcd84d0c284560a6.tar.gz gcc-49576e25cbab7891bc3296e2bcd84d0c284560a6.tar.bz2 | |
configure.ac (gcc_cv_ld_mips_personality_relaxation): New feature check.
gcc/
* configure.ac (gcc_cv_ld_mips_personality_relaxation): New
feature check.
(HAVE_LD_PERSONALITY_RELAXATION): New macro definition.
* configure, config.in: Regenerate.
* dwarf2asm.c (eh_data_format_name): Handle DW_EH_PE_indirect |
DW_EH_PE_absptr.
* config/mips/mips.h (TARGET_WRITABLE_EH_FRAME): New macro.
(ASM_PREFERRED_EH_DATA_FORMAT): Define. Use MIPS_EH_INDIRECT
for global data if the output could be used in a shared library.
* config/mips/mips.c (mips_override_options): Set flag_dwarf2_cfi_asm
to 0 if TARGET_WRITABLE_EH_FRAME.
From-SVN: r151896
Diffstat (limited to 'gcc/configure')
| -rwxr-xr-x | gcc/configure | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/gcc/configure b/gcc/configure index 2369ba7..ced17cd 100755 --- a/gcc/configure +++ b/gcc/configure @@ -23725,6 +23725,57 @@ $as_echo_n "checking assembler and linker for explicit JALR relocation... " >&6; fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_ld_jalr_reloc" >&5 $as_echo "$gcc_cv_as_ld_jalr_reloc" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking linker for .eh_frame personality relaxation" >&5 +$as_echo_n "checking linker for .eh_frame personality relaxation... " >&6; } +if test "${gcc_cv_ld_mips_personality_relaxation+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + gcc_cv_ld_mips_personality_relaxation=no + if test $in_tree_ld = yes ; then + if test "$gcc_cv_gld_major_version" -eq 2 \ + -a "$gcc_cv_gld_minor_version" -ge 21 \ + -o "$gcc_cv_gld_major_version" -gt 2; then + gcc_cv_ld_mips_personality_relaxation=yes + fi + elif test x$gcc_cv_as != x \ + -a x$gcc_cv_ld != x \ + -a x$gcc_cv_readelf != x ; then + cat > conftest.s <<EOF + .cfi_startproc + .cfi_personality 0x80,indirect_ptr + .ent test +test: + nop + .end test + .cfi_endproc + + .section .data,"aw",@progbits +indirect_ptr: + .dc.a personality +EOF + if $gcc_cv_as -KPIC -o conftest.o conftest.s > /dev/null 2>&1 \ + && $gcc_cv_ld -o conftest conftest.o -shared > /dev/null 2>&1; then + if $gcc_cv_readelf -d conftest 2>&1 \ + | grep TEXTREL > /dev/null 2>&1; then + : + elif $gcc_cv_readelf --relocs conftest 2>&1 \ + | grep 'R_MIPS_REL32 *$' > /dev/null 2>&1; then + : + else + gcc_cv_ld_mips_personality_relaxation=yes + fi + fi + fi + rm -f conftest.s conftest.o conftest +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_ld_mips_personality_relaxation" >&5 +$as_echo "$gcc_cv_ld_mips_personality_relaxation" >&6; } + if test x$gcc_cv_ld_mips_personality_relaxation = xyes; then + +$as_echo "#define HAVE_LD_PERSONALITY_RELAXATION 1" >>confdefs.h + + fi ;; esac |