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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.
39 lines
566 B
ArmAsm
39 lines
566 B
ArmAsm
.syntax unified
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.cpu cortex-a8
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.thumb
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.text
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@ expansion 32 bytes
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.macro bw1
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1:
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add.w r0, r1, r2
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blx.w targetfn
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add.w r0, r1, r2
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blx.w targetfn
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add.w r0, r1, r2
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blx.w targetfn
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add.w r0, r1, r2
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blx.w targetfn
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.endm
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@ expansion 128 bytes
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.macro bw2
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bw1
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bw1
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bw1
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bw1
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.endm
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.align 3
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.global _start
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.thumb
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.thumb_func
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.type _start, %function
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_start:
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nop
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bw2
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bw2
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bx lr
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