[AArch64] Cortex-A53 erratum 835769 linker workaround
authorJiong Wang <jiong.wang@arm.com>
Fri, 24 Oct 2014 10:39:35 +0000 (11:39 +0100)
committerJiong Wang <jiong.wang@arm.com>
Fri, 24 Oct 2014 10:39:35 +0000 (11:39 +0100)
commit68fcca92b735bb46e38331485ac2e933e5876b83
tree586a3f1bf8c983437c2f084e078cd6402a930e7c
parent79ccd89e582a1159a503813be020d044e070d53f
[AArch64] Cortex-A53 erratum 835769 linker workaround

2014-10-22  Tejas Belagod  <tejas.belagod@arm.com>

bfd/
* bfd-in.h (bfd_elf64_aarch64_set_options): Add a parameter.
* bfd-in2.h (bfd_elf64_aarch64_set_options): Likewise.
* elfnn-aarch64.c (aarch64_erratum_835769_stub): New.
(elf_aarch64_stub_type): Add new type
aarch64_stub_erratum_835769_veneer.
(elf_aarch64_stub_hash_entry): New fields for erratum 835769.
(aarch64_erratum_835769_fix): New data struct to record erratum
835769.
(elf_aarch64_link_hash_table: Global flags for 835769.
(aarch64_build_one_stub): Add case for 835769.
(aarch64_size_one_stub): Likewise.
(aarch64_mem_op_p, aarch64_mlxl_p,
aarch64_erratum_sequence,erratum_835769_scan):
New. Decode and scan functions for erratum 835769.
(elf_aarch64_create_or_find_stub_sec): New.
(elfNN_aarch64_size_stubs): Look for erratum 835769 and record
them.
(bfd_elfNN_aarch64_set_options: Set global flag for 835769.
(erratum_835769_branch_to_stub_data,
make_branch_to_erratum_835769_stub):New. Connect up all the
erratum stubs to occurances by branches.
(elfNN_aarch64_write_section): New hook.
(aarch64_map_one_stub): Output erratum stub symbol.
(elfNN_aarch64_size_dynamic_sections): Init mapping symbol
information for erratum 835769.
(elf_backend_write_section): Define.

ld/
* emultempl/aarch64elf.em: Add command-line option for erratum
835769.

ld/testsuite/

* ld-aarch64/aarch64-elf.exp (aarch64elftests): Drive erratum
835769 tests.
* ld-aarch64/erratum835769.d: New.
* ld-aarch64/erratum835769.s: New.
bfd/ChangeLog
bfd/bfd-in.h
bfd/bfd-in2.h
bfd/elfnn-aarch64.c
ld/ChangeLog
ld/emultempl/aarch64elf.em
ld/ld.texinfo
ld/testsuite/ChangeLog
ld/testsuite/ld-aarch64/aarch64-elf.exp
ld/testsuite/ld-aarch64/erratum835769.d [new file with mode: 0644]
ld/testsuite/ld-aarch64/erratum835769.s [new file with mode: 0644]