ld/

    * 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.

1 files changed, 7 insertions, 0 deletions

diff --git a/ld/ld.texinfo b/ld/ld.texinfo
index 2121725..fbda265 100644
--- a/ld/ld.texinfo
+++ b/ld/ld.texinfo
@@ -5865,6 +5865,13 @@ instructions into @code{bal} instructions when it determines that the
 target subroutine is a leaf routine (that is, the target subroutine does
 not itself call any subroutines).
 
+@cindex Cortex-A8 erratum workaround
+@kindex --fix-cortex-a8
+@kindex --no-fix-cortex-a8
+The @samp{--fix-cortex-a8} switch enables a link-time workaround for an erratum in certain Cortex-A8 processors.  The workaround is enabled by default if you are targeting the ARM v7-A architecture profile.  It can be enabled otherwise by specifying @samp{--fix-cortex-a8}, or disabled unconditionally by specifying @samp{--no-fix-cortex-a8}.
+
+The erratum only affects Thumb-2 code.  Please contact ARM for further details.
+
 @ifclear GENERIC
 @lowersections
 @end ifclear