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| author | H.J. Lu <hjl.tools@gmail.com> | 2017-01-10 13:31:59 -0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2017-01-10 13:31:59 -0800 |
| commit | fff53daefb7838b5718422c87946330e4a8288ce (patch) | |
| tree | 5f78be197c91e52a9cb9aa373c37ece6d77a1527 /ld/testsuite/ld-x86-64/pr20830.s | |
| parent | 5edad15d7c1e6a2409102b3426b444d6ea98bdfc (diff) | |
| download | gdb-fff53daefb7838b5718422c87946330e4a8288ce.zip gdb-fff53daefb7838b5718422c87946330e4a8288ce.tar.gz gdb-fff53daefb7838b5718422c87946330e4a8288ce.tar.bz2 | |
i386/x86-64: Add unwind info for .plt.got section
When there are both PLT and GOT references to the same function symbol,
linker combines GOTPLT and GOT slots into a single GOT slot and create
an entry in .plt.got section for PLT access via the GOT slot. This
patch adds unwind info for .plt.got section.
bfd/
PR ld/20830
* elf32-i386.c (elf_i386_eh_frame_plt_got): New.
(PLT_GOT_FDE_LENGTH): Likewise.
(elf_i386_plt_layout): Add eh_frame_plt_got and
eh_frame_plt_got_size.
(elf_i386_plt): Updated.
(elf_i386_link_hash_table): Add plt_got_eh_frame.
(elf_i386_check_relocs): Create .eh_frame section for .plt.got.
(elf_i386_size_dynamic_sections): Allocate and initialize
.eh_frame section for .plt.got.
(elf_i386_finish_dynamic_sections): Adjust .eh_frame section for
.plt.got.
(elf_i386_nacl_plt): Add FIXME for eh_frame_plt_got and
eh_frame_plt_got_size.
* elf64-x86-64.c (elf_x86_64_eh_frame_plt_got): New.
(PLT_GOT_FDE_LENGTH): Likewise.
(elf_x86_64_backend_data): Add eh_frame_plt_got and
eh_frame_plt_got_size.
(elf_x86_64_arch_bed): Updated.
(elf_x86_64_bnd_arch_bed): Add FIXME for eh_frame_plt_got and
eh_frame_plt_got_size.
(elf_x86_64_nacl_arch_bed): Likewise.
(elf_x86_64_link_hash_table): Add plt_got_eh_frame.
(elf_x86_64_check_relocs): Create .eh_frame section for .plt.got.
(elf_x86_64_size_dynamic_sections): Allocate and initialize
.eh_frame section for .plt.got.
(elf_x86_64_finish_dynamic_sections): Adjust .eh_frame section
for .plt.got.
ld/
PR ld/20830
* testsuite/ld-i386/i386.exp: Run pr20830.
* testsuite/ld-x86-64/x86-64.exp: Likewise.
* testsuite/ld-i386/pr20830.d: New file.
* testsuite/ld-i386/pr20830.s: Likewise.
* testsuite/ld-x86-64/pr20830.d: Likewise.
* testsuite/ld-x86-64/pr20830.s: Likewise.
Diffstat (limited to 'ld/testsuite/ld-x86-64/pr20830.s')
| -rw-r--r-- | ld/testsuite/ld-x86-64/pr20830.s | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/ld/testsuite/ld-x86-64/pr20830.s b/ld/testsuite/ld-x86-64/pr20830.s new file mode 100644 index 0000000..d9a1b4c --- /dev/null +++ b/ld/testsuite/ld-x86-64/pr20830.s @@ -0,0 +1,8 @@ + .text + .globl foo + .type foo, @function +foo: + .cfi_startproc + call func@plt + movq func@GOTPCREL(%rip), %rax + .cfi_endproc |