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authorJulian Brown <julian@codesourcery.com>2009-05-22 11:58:45 +0000
committerJulian Brown <julian@codesourcery.com>2009-05-22 11:58:45 +0000
commit48229727d832a7181bfa8e36a77b480cd4efdf74 (patch)
treee2e7fc8ecda29f9ab4a3d3e6245b06602f8d592a /ld/emultempl
parentec6d26bed6aaf59e5c3d4b619b127c2e22ff39a0 (diff)
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* emultempl/armelf.em (fix_cortex_a8): New. (arm_elf_before_allocation): Call bfd_elf32_arm_set_cortex_a8_fix. (arm_elf_create_output_section_statements): Add fix_cortex_a8 to bfd_elf32_arm_set_target_relocs. (OPTION_FIX_CORTEX_A8, OPTION_NO_FIX_CORTEX_A8): New. (PARSE_AND_LIST_LONGOPTS): Add [no-]fix-cortex-a8 options. (PARSE_AND_LIST_OPTIONS): Add [no-]fix-cortex-a8 options. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_[NO_]FIX_CORTEX_A8. * ld.texinfo (--[no-]fix-cortex-a8): Briefly document new options. bfd/ * elf32-arm.c (THUMB16_BCOND_INSN, THUMB32_INSN, THUMB32_B_INSN): New macros. (elf32_arm_stub_a8_veneer_b_cond, elf32_arm_stub_a8_veneer_b) (elf32_arm_stub_a8_veneer_blx): New stub sequences. (elf32_arm_stub_type): Add arm_stub_a8_veneer_b_cond, arm_stub_a8_veneer_b and arm_stub_a8_veneer_blx. (elf32_arm_stub_hash_entry): Add target_addend, orig_insn fields. (a8_erratum_fix, a8_erratum_reloc): New structs. (elf32_arm_link_hash_table): Add a8_erratum_fixes, num_a8_erratum_fixes, fix_cortex_a8 fields. (elf32_arm_link_hash_table_create): Zero fix_cortex_a8. (elf32_arm_add_stub): Split into two parts, creating... (elf32_arm_create_or_find_stub_sec): New function. (elf32_arm_final_link_relocate): Add forward declaration. (arm_build_one_stub): Add support for THUMB32_TYPE, Thumb-2 relocations, multiple relocations per stub. (find_stub_size_and_template): New (using parts of arm_size_one_stub). (arm_size_one_stub): Use find_stub_size_and_template. (a8_reloc_compare): New. (find_thumb_glue): Add forward declaration. (cortex_a8_erratum_scan): New. (elf32_arm_size_stubs): Add Cortex-A8 erratum workaround support. (bfd_elf32_arm_set_cortex_a8_fix): New. (bfd_elf32_arm_set_target_relocs): Add fix_cortex_a8 argument. (arm_map_one_stub): Add THUMB32_TYPE support. (a8_branch_to_stub_data): New. (make_branch_to_a8_stub): New. (elf32_arm_write_section): Add Cortex-A8 erratum workaround support. * bfd-in.h (bfd_elf32_arm_set_cortex_a8_fix): New. (bfd_elf32_arm_set_target_relocs): Add argument for controlling Cortex-A8 erratum workaround. * bfd-in2.h: Regenerate. ld/testsuite/ * ld-arm/cortex-a8-arm-target.s: New. * ld-arm/cortex-a8-thumb-target.s: New. * ld-arm/cortex-a8-fix-b-rel.s: New. * ld-arm/cortex-a8-fix-b-rel-arm.d: New. * ld-arm/cortex-a8-fix-b-rel-thumb.d: New. * ld-arm/cortex-a8-fix-b.s: New. * ld-arm/cortex-a8-fix-b.d: New. * ld-arm/cortex-a8-fix-bl-rel.s: New. * ld-arm/cortex-a8-fix-bl-rel-arm.d: New. * ld-arm/cortex-a8-fix-bl-rel-thumb.d: New. * ld-arm/cortex-a8-fix-bl.s: New. * ld-arm/cortex-a8-fix-bl.d: New. * ld-arm/cortex-a8-fix-bcc-rel.s: New. * ld-arm/cortex-a8-fix-bcc-rel-thumb.d: New. * ld-arm/cortex-a8-fix-bcc.s: New. * ld-arm/cortex-a8-fix-bcc.d: New. * ld-arm/cortex-a8-fix-blx-rel.s: New. * ld-arm/cortex-a8-fix-blx-rel-arm.d: New. * ld-arm/cortex-a8-fix-blx-rel-thumb.d: New. * ld-arm/cortex-a8-fix-blx.s: New. * ld-arm/cortex-a8-fix-blx.d: New. * ld-arm/arm-elf.exp: Add new tests.
Diffstat (limited to 'ld/emultempl')
-rw-r--r--ld/emultempl/armelf.em19
1 files changed, 18 insertions, 1 deletions
diff --git a/ld/emultempl/armelf.em b/ld/emultempl/armelf.em
index 2d63a63..de7fe68 100644
--- a/ld/emultempl/armelf.em
+++ b/ld/emultempl/armelf.em
@@ -37,6 +37,7 @@ static char *target2_type = "${TARGET2_TYPE}";
static int fix_v4bx = 0;
static int use_blx = 0;
static bfd_arm_vfp11_fix vfp11_denorm_fix = BFD_ARM_VFP11_FIX_DEFAULT;
+static int fix_cortex_a8 = -1;
static int no_enum_size_warning = 0;
static int no_wchar_size_warning = 0;
static int pic_veneer = 0;
@@ -60,6 +61,9 @@ arm_elf_before_allocation (void)
due to architecture version. */
bfd_elf32_arm_set_vfp11_fix (link_info.output_bfd, &link_info);
+ /* Auto-select Cortex-A8 erratum fix if it wasn't explicitly specified. */
+ bfd_elf32_arm_set_cortex_a8_fix (link_info.output_bfd, &link_info);
+
/* We should be able to set the size of the interworking stub section. We
can't do it until later if we have dynamic sections, though. */
if (! elf_hash_table (&link_info)->dynamic_sections_created)
@@ -458,7 +462,7 @@ arm_elf_create_output_section_statements (void)
target2_type, fix_v4bx, use_blx,
vfp11_denorm_fix, no_enum_size_warning,
no_wchar_size_warning,
- pic_veneer);
+ pic_veneer, fix_cortex_a8);
stub_file = lang_add_input_file ("linker stubs",
lang_input_file_is_fake_enum,
@@ -520,6 +524,8 @@ PARSE_AND_LIST_PROLOGUE='
#define OPTION_FIX_V4BX_INTERWORKING 311
#define OPTION_STUBGROUP_SIZE 312
#define OPTION_NO_WCHAR_SIZE_WARNING 313
+#define OPTION_FIX_CORTEX_A8 314
+#define OPTION_NO_FIX_CORTEX_A8 315
'
PARSE_AND_LIST_SHORTOPTS=p
@@ -539,6 +545,8 @@ 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-a8", no_argument, NULL, OPTION_FIX_CORTEX_A8 },
+ { "no-fix-cortex-a8", no_argument, NULL, OPTION_NO_FIX_CORTEX_A8 },
'
PARSE_AND_LIST_OPTIONS='
@@ -565,6 +573,7 @@ PARSE_AND_LIST_OPTIONS='
after each stub section. Values of +/-1 indicate\n\
the linker should choose suitable defaults.\n"
));
+ fprintf (file, _(" --[no-]fix-cortex-a8 Disable/enable Cortex-A8 Thumb-2 branch erratum fix\n"));
'
PARSE_AND_LIST_ARGS_CASES='
@@ -636,6 +645,14 @@ PARSE_AND_LIST_ARGS_CASES='
einfo (_("%P%F: invalid number `%s'\''\n"), optarg);
}
break;
+
+ case OPTION_FIX_CORTEX_A8:
+ fix_cortex_a8 = 1;
+ break;
+
+ case OPTION_NO_FIX_CORTEX_A8:
+ fix_cortex_a8 = 0;
+ break;
'
# We have our own before_allocation etc. functions, but they call