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authorSudakshina Das <sudi.das@arm.com>2019-03-21 16:20:21 +0000
committerSudakshina Das <sudi.das@arm.com>2019-03-21 16:20:21 +0000
commit4e5391148d51c58785aad637f1a92d47b91b3ae6 (patch)
tree39854d98236b1aa76c3ecc067dd66c430804e4da /bfd/elfxx-x86.c
parentf84bd4655c17b3ee59b73bd33ec91f75bd58546c (diff)
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[BFD, AArch64, x86] Improve warning for --force-bti
The AArch64 linker option to turn on BTI (--force-bti) warns in case there are input objects which have a missing GNU NOTE section for BTI. This patch is trying to improve the warnings that come out. In order to do so, I propose adding a new argument to elf_merge_gnu_properties and the backend function merge_gnu_properties. This new argument makes sure that we now pass both the objects along with the properties to which they belong to. The x86 backend function has also been updated to match this change. *** bfd/ChangeLog *** 2019-03-21 Sudakshina Das <sudi.das@arm.com> * elf-bfd.h (struct elf_backend_data): Add argument to merge_gnu_properties. * elf-properties.c (elf_merge_gnu_properties): Add argument to itself and while calling bed->merge_gnu_properties. (elf_merge_gnu_property_list): Update the calls for elf_merge_gnu_properties. * elfnn-aarch64.c (elfNN_aarch64_merge_gnu_properties): Update handling of --force-bti warning and add argument. * elfxx-aarch64.c (_bfd_aarch64_elf_link_setup_gnu_properties): Add warning. * elfxx-x86.c (_bfd_x86_elf_merge_gnu_properties): Add argument. * elfxx-x86.h (_bfd_x86_elf_merge_gnu_properties): Likewise in declaration. *** ld/ChangeLog *** 2019-03-21 Sudakshina Das <sudi.das@arm.com> * testsuite/ld-aarch64/aarch64-elf.exp: Add new test. * testsuite/ld-aarch64/bti-plt-1.s: Add .ifdef for PAC note section. * testsuite/ld-aarch64/bti-plt-6.d: Update warning. * testsuite/ld-aarch64/bti-plt-7.d: Likewise. * testsuite/ld-aarch64/bti-warn.d: New test.
Diffstat (limited to 'bfd/elfxx-x86.c')
-rw-r--r--bfd/elfxx-x86.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/bfd/elfxx-x86.c b/bfd/elfxx-x86.c
index 584a75f..5703b5f 100644
--- a/bfd/elfxx-x86.c
+++ b/bfd/elfxx-x86.c
@@ -2401,6 +2401,7 @@ _bfd_x86_elf_parse_gnu_properties (bfd *abfd, unsigned int type,
bfd_boolean
_bfd_x86_elf_merge_gnu_properties (struct bfd_link_info *info,
bfd *abfd ATTRIBUTE_UNUSED,
+ bfd *bbfd ATTRIBUTE_UNUSED,
elf_property *aprop,
elf_property *bprop)
{