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| author | Jiong Wang <jiong.wang@arm.com> | 2014-10-24 11:39:35 +0100 |
|---|---|---|
| committer | Jiong Wang <jiong.wang@arm.com> | 2014-10-24 11:39:35 +0100 |
| commit | 68fcca92b735bb46e38331485ac2e933e5876b83 (patch) | |
| tree | 586a3f1bf8c983437c2f084e078cd6402a930e7c /ld/emultempl | |
| parent | 79ccd89e582a1159a503813be020d044e070d53f (diff) | |
| download | gdb-68fcca92b735bb46e38331485ac2e933e5876b83.zip gdb-68fcca92b735bb46e38331485ac2e933e5876b83.tar.gz gdb-68fcca92b735bb46e38331485ac2e933e5876b83.tar.bz2 | |
[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.
Diffstat (limited to 'ld/emultempl')
| -rw-r--r-- | ld/emultempl/aarch64elf.em | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/ld/emultempl/aarch64elf.em b/ld/emultempl/aarch64elf.em index bb58901..42e8056 100644 --- a/ld/emultempl/aarch64elf.em +++ b/ld/emultempl/aarch64elf.em @@ -30,6 +30,7 @@ fragment <<EOF static int no_enum_size_warning = 0; static int no_wchar_size_warning = 0; static int pic_veneer = 0; +static int fix_erratum_835769 = 0; static void gld${EMULATION_NAME}_before_parse (void) @@ -302,7 +303,7 @@ aarch64_elf_create_output_section_statements (void) bfd_elf${ELFSIZE}_aarch64_set_options (link_info.output_bfd, &link_info, no_enum_size_warning, no_wchar_size_warning, - pic_veneer); + pic_veneer, fix_erratum_835769); stub_file = lang_add_input_file ("linker stubs", lang_input_file_is_fake_enum, @@ -351,6 +352,7 @@ PARSE_AND_LIST_PROLOGUE=' #define OPTION_PIC_VENEER 310 #define OPTION_STUBGROUP_SIZE 311 #define OPTION_NO_WCHAR_SIZE_WARNING 312 +#define OPTION_FIX_ERRATUM_835769 313 ' PARSE_AND_LIST_SHORTOPTS=p @@ -361,6 +363,7 @@ PARSE_AND_LIST_LONGOPTS=' { "pic-veneer", no_argument, NULL, OPTION_PIC_VENEER}, { "stub-group-size", required_argument, NULL, OPTION_STUBGROUP_SIZE }, { "no-wchar-size-warning", no_argument, NULL, OPTION_NO_WCHAR_SIZE_WARNING}, + { "fix-cortex-a53-835769", no_argument, NULL, OPTION_FIX_ERRATUM_835769}, ' PARSE_AND_LIST_OPTIONS=' @@ -378,6 +381,7 @@ PARSE_AND_LIST_OPTIONS=' after each stub section. Values of +/-1 indicate\n\ the linker should choose suitable defaults.\n" )); + fprintf (file, _(" --fix-cortex-a53-835769 Fix erratum 835769\n")); ' PARSE_AND_LIST_ARGS_CASES=' @@ -397,6 +401,10 @@ PARSE_AND_LIST_ARGS_CASES=' pic_veneer = 1; break; + case OPTION_FIX_ERRATUM_835769: + fix_erratum_835769 = 1; + break; + case OPTION_STUBGROUP_SIZE: { const char *end; |