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| author | Sudakshina Das <sudi.das@arm.com> | 2019-06-06 12:27:41 +0100 |
|---|---|---|
| committer | Sudakshina Das <sudi.das@arm.com> | 2019-06-06 12:27:41 +0100 |
| commit | 237df8fe1863bb47fcf71ce125cd962666173aaa (patch) | |
| tree | 7b4985f06381f82de4c47129c59ef8c8b8a72487 /bfd | |
| parent | 8bf6d176b0a442a8091d338d4af971591d19922c (diff) | |
| download | gdb-237df8fe1863bb47fcf71ce125cd962666173aaa.zip gdb-237df8fe1863bb47fcf71ce125cd962666173aaa.tar.gz gdb-237df8fe1863bb47fcf71ce125cd962666173aaa.tar.bz2 | |
[BFD, AArch64] Fix PT_GNU_PROPERTY alignment issue
If the new GNU property section was being created by the linker
(this will happen only if none of the inputs have any GNU property
section but the command line to the linker forces a bti with
--force-bti), the alignment of the section and hence the program
header of PT_GNU_PROPERTY type was not being set correctly. This
patch fixes this issue.
bfd/ChangeLog:
2019-06-06 Sudakshina Das <sudi.das@arm.com>
* elfxx-aarch64.c (_bfd_aarch64_elf_link_setup_gnu_properties): Set
alignment of the new gnu property section.
ld/ChangeLog:
2019-06-06 Sudakshina Das <sudi.das@arm.com>
* testsuite/ld-aarch64/aarch64-elf.exp: Add new tests.
* testsuite/ld-aarch64/property-bti-pac4-a.d: New test.
* testsuite/ld-aarch64/property-bti-pac4-b.d: New test.
* testsuite/ld-aarch64/property-bti-pac4.s: New test.
Diffstat (limited to 'bfd')
| -rw-r--r-- | bfd/ChangeLog | 5 | ||||
| -rw-r--r-- | bfd/elfxx-aarch64.c | 8 |
2 files changed, 13 insertions, 0 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 69624fe..058e971 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,5 +1,10 @@ 2019-06-06 Sudakshina Das <sudi.das@arm.com> + * elfxx-aarch64.c (_bfd_aarch64_elf_link_setup_gnu_properties): Set + alignment of the new gnu property section. + +2019-06-06 Sudakshina Das <sudi.das@arm.com> + * bfd-in.h: Change comment. * bfd-in2.h: Regenerate. * elfnn-aarch64.c (elfNN_aarch64_merge_gnu_properties): Update warning. diff --git a/bfd/elfxx-aarch64.c b/bfd/elfxx-aarch64.c index 1249008..33af6c2 100644 --- a/bfd/elfxx-aarch64.c +++ b/bfd/elfxx-aarch64.c @@ -695,6 +695,7 @@ _bfd_aarch64_elf_link_setup_gnu_properties (struct bfd_link_info *info, bfd *pbfd; bfd *ebfd = NULL; elf_property *prop; + unsigned align; uint32_t gnu_prop = *gprop; @@ -743,6 +744,13 @@ _bfd_aarch64_elf_link_setup_gnu_properties (struct bfd_link_info *info, info->callbacks->einfo ( _("%F%P: failed to create GNU property section\n")); + align = (bfd_get_mach (ebfd) & bfd_mach_aarch64_ilp32) ? 2 : 3; + if (!bfd_set_section_alignment (ebfd, sec, align)) + { + info->callbacks->einfo (_("%F%pA: failed to align section\n"), + sec); + } + elf_section_type (sec) = SHT_NOTE; } } |