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| author | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2018-02-06 18:15:56 +0100 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2018-02-06 18:17:39 +0100 |
| commit | c20c30f615756ddfccc4bb75c65ccfc1a399466e (patch) | |
| tree | 9b5459a709bf72b5b53986110d56499cff9cdc52 /config/gcc-plugin.m4 | |
| parent | bca65a2394ce11bb4a0b001b8a986961c2e84881 (diff) | |
| download | gdb-c20c30f615756ddfccc4bb75c65ccfc1a399466e.zip gdb-c20c30f615756ddfccc4bb75c65ccfc1a399466e.tar.gz gdb-c20c30f615756ddfccc4bb75c65ccfc1a399466e.tar.bz2 | |
Fix PR ld/22263 on SPARC.
This is -fpie -pie generating dynamic relocations in the text section,
simply because no TLS transitions are applied in PIE mode. The meat
of the patch is to turn calls to bfd_link_pic (info) in TLS-related code
into !bfd_link_executable (info) and there are quite a lot of them...
bfd/
* elfxx-sparc.c (sparc_elf_tls_transition): Turn call to bfd_link_pic
into call to !bfd_link_executable and tidy up.
(_bfd_sparc_elf_check_relocs): Fix formatting and tidy up.
<R_SPARC_TLS_LE_HIX22>: Turn call to bfd_link_pic into call to
!bfd_link_executable.
<R_SPARC_TLS_IE_HI22>: Likewise.
<GOT relocations>: Remove useless code, tidy and merge blocks.
<R_SPARC_TLS_GD_CALL>: Turn call to bfd_link_pic into call to
!bfd_link_executable.
<R_SPARC_WPLT30>: Tidy up.
(_bfd_sparc_elf_gc_mark_hook): Turn call to bfd_link_pic into call
to !bfd_link_executable.
(allocate_dynrelocs): Likewise.
(_bfd_sparc_elf_relocate_section): Fix formatting and tidy up.
<R_SPARC_TLS_GD_HI22>: Merge into...
<R_SPARC_TLS_GD_LO10>: ...this. Adjust 4th argument in call to
sparc_elf_tls_transition and remove redundant code.
<R_SPARC_TLS_LDM_HI22>: Turn call to bfd_link_pic into call to
!bfd_link_executable.
<R_SPARC_TLS_LDO_HIX22>: Likewise.
<R_SPARC_TLS_LE_HIX22>: Likewise. Tidy up.
<R_SPARC_TLS_LDM_CALL>: Likewise.
<R_SPARC_TLS_GD_CALL>: Likewise. Tidy up.
<R_SPARC_TLS_GD_ADD>: Likewise.
<R_SPARC_TLS_LDM_ADD>: Likewise.
<R_SPARC_TLS_LDO_ADD>: Likewise.
<R_SPARC_TLS_IE_LD>: Likewise.
ld/
* testsuite/ld-elf/tls.exp (AFLAGS_PIC): Define on SPARC.
(pr22263-1): Pass AFLAGS_PIC to the assembler.
* testsuite/ld-sparc/tlspie32.s: Add test for other 3 transitions.
* testsuite/ld-sparc/tlspie32.dd: Adjust to above.
* testsuite/ld-sparc/tlspie64.s: Add test for other 3 transitions.
* testsuite/ld-sparc/tlspie64.dd: Adjust to above.
Diffstat (limited to 'config/gcc-plugin.m4')
| -rw-r--r-- | config/gcc-plugin.m4 | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/config/gcc-plugin.m4 b/config/gcc-plugin.m4 index 38b2ae6..8f27871 100644 --- a/config/gcc-plugin.m4 +++ b/config/gcc-plugin.m4 @@ -60,14 +60,14 @@ AC_DEFUN([GCC_ENABLE_PLUGINS], if test "x$export_sym_check" != x; then echo "int main() {return 0;} int foobar() {return 0;}" > conftest.c ${CC} ${CFLAGS} ${LDFLAGS} conftest.c -o conftest$ac_exeext > /dev/null 2>&1 - if $export_sym_check conftest$ac_exeext | grep -q foobar > /dev/null; then + if $export_sym_check conftest$ac_exeext | grep foobar > /dev/null; then : # No need to use a flag AC_MSG_RESULT([yes]) else AC_MSG_RESULT([yes]) AC_MSG_CHECKING([for -rdynamic]) ${CC} ${CFLAGS} ${LDFLAGS} -rdynamic conftest.c -o conftest$ac_exeext > /dev/null 2>&1 - if $export_sym_check conftest$ac_exeext | grep -q foobar > /dev/null; then + if $export_sym_check conftest$ac_exeext | grep foobar > /dev/null; then plugin_rdynamic=yes pluginlibs="-rdynamic" else |