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| author | Alan Modra <amodra@gmail.com> | 2017-07-31 10:18:46 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2017-07-31 13:20:44 +0930 |
| commit | d44c746aedeb31aacd867edc2da30dedc1e63e15 (patch) | |
| tree | 2e8e6f68db504b37e84bfc8644321e4ccfc983c5 /gold | |
| parent | 93e0a1eab1c7963d77513aa503b129ea03cd6d39 (diff) | |
| download | gdb-d44c746aedeb31aacd867edc2da30dedc1e63e15.zip gdb-d44c746aedeb31aacd867edc2da30dedc1e63e15.tar.gz gdb-d44c746aedeb31aacd867edc2da30dedc1e63e15.tar.bz2 | |
PR 21847, PowerPC64 --plt-localentry again
This makes ld warn about --plt-localentry if a version of glibc
without the necessary ld.so checks is detected, and revises the
documentation.
bfd/
* elf64-ppc.c (ppc64_elf_tls_setup): Warn on --plt-localentry
without ld.so checks.
gold/
* powerpc.cc (Target_powerpc::scan_relocs): Warn on --plt-localentry
without ld.so checks.
ld/
* ld.texinfo (plt-localentry): Revise.
Diffstat (limited to 'gold')
| -rw-r--r-- | gold/ChangeLog | 5 | ||||
| -rw-r--r-- | gold/powerpc.cc | 4 |
2 files changed, 9 insertions, 0 deletions
diff --git a/gold/ChangeLog b/gold/ChangeLog index a019393..e7567e6 100644 --- a/gold/ChangeLog +++ b/gold/ChangeLog @@ -1,3 +1,8 @@ +2017-07-31 Alan Modra <amodra@gmail.com> + + * powerpc.cc (Target_powerpc::scan_relocs): Warn on --plt-localentry + without ld.so checks. + 2017-07-29 Alan Modra <amodra@gmail.com> PR 21847 diff --git a/gold/powerpc.cc b/gold/powerpc.cc index e322d6f..14e56d8 100644 --- a/gold/powerpc.cc +++ b/gold/powerpc.cc @@ -7660,6 +7660,10 @@ Target_powerpc<size, big_endian>::scan_relocs( { if (parameters->options().user_set_plt_localentry()) plt_localentry0 = parameters->options().plt_localentry(); + if (plt_localentry0 + && symtab->lookup("GLIBC_2.26", NULL) == NULL) + gold_warning(_("--plt-localentry is especially dangerous without " + "ld.so support to detect ABI violations")); } this->plt_localentry0_ = plt_localentry0; this->plt_localentry0_init_ = true; |