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| author | Alan Modra <amodra@gmail.com> | 2017-11-14 11:02:57 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2017-11-14 15:45:41 +1030 |
| commit | 2d0d44d514d9a2e2b0f7ae8129d52b02160c9897 (patch) | |
| tree | fd17d0d0242fa20fb405dc44032fa10042172eed /bfd | |
| parent | ddbb44cf366b652dc9edf2ccd4605f1ed0e2e62d (diff) | |
| download | gdb-2d0d44d514d9a2e2b0f7ae8129d52b02160c9897.zip gdb-2d0d44d514d9a2e2b0f7ae8129d52b02160c9897.tar.gz gdb-2d0d44d514d9a2e2b0f7ae8129d52b02160c9897.tar.bz2 | |
Inconsistent .eh_frame_hdr on powerpc64
There is code in bfd/elf-eh-frame.c and ld/emultempl/elf32.em that
checks for the presence of eh_frame info by testing for a section
named .eh_frame sized more than 8 bytes. The size test is to exclude
a zero terminator. A similar check in elf64-ppc.c wrongly just tested
for non-zero size before creating the linker generated .eh_frame
describing plt call and other linkage stubs. The intention was to not
generate that info unless there was some user .eh_frame. (No user
.eh_frame implies the user doesn't care about exception handling.)
Because the test in elf64-ppc.c was wrong, ld generated the stub
.eh_frame just on finding a zero .eh_frame terminator in crtend.o, but
didn't generate the corresponding .eh_frame_hdr.
* elf64-ppc.c (ppc64_elf_size_stubs): Correct test for user
.eh_frame info.
Diffstat (limited to 'bfd')
| -rw-r--r-- | bfd/ChangeLog | 5 | ||||
| -rw-r--r-- | bfd/elf64-ppc.c | 2 |
2 files changed, 6 insertions, 1 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 70d4e56..1c9edaf 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,8 @@ +2017-11-14 Alan Modra <amodra@gmail.com> + + * elf64-ppc.c (ppc64_elf_size_stubs): Correct test for user + .eh_frame info. + 2017-11-13 Jan Beulich <jbeulich@suse.com> * coff-tic80.c (COFF_ENCODE_ALIGNMENT, COFF_DECODE_ALIGNMENT): diff --git a/bfd/elf64-ppc.c b/bfd/elf64-ppc.c index 181bbdc..31ee412 100644 --- a/bfd/elf64-ppc.c +++ b/bfd/elf64-ppc.c @@ -12700,7 +12700,7 @@ ppc64_elf_size_stubs (struct bfd_link_info *info) if (htab->glink_eh_frame != NULL && !bfd_is_abs_section (htab->glink_eh_frame->output_section) - && htab->glink_eh_frame->output_section->size != 0) + && htab->glink_eh_frame->output_section->size > 8) { size_t size = 0, align = 4; |