906e58cab5
* elf32-arm.c (THM2_MAX_FWD_BRANCH_OFFSET): Define.
(THM2_MAX_BWD_BRANCH_OFFSET): Define.
(ARM_MAX_FWD_BRANCH_OFFSET): Define.
(ARM_MAX_BWD_BRANCH_OFFSET): Define.
(THM_MAX_FWD_BRANCH_OFFSET): Define.
(THM_MAX_BWD_BRANCH_OFFSET): Define.
(arm_long_branch_stub): Define.
(arm_pic_long_branch_stub): Define.
(arm_thumb_v4t_long_branch_stub): Define.
(arm_thumb_thumb_long_branch_stub): Define.
(arm_thumb_arm_v4t_long_branch_stub): Define.
(STUB_SUFFIX): Define.
(elf32_arm_stub_type): Define.
(elf32_arm_stub_hash_entry): Define.
(elf32_arm_link_hash_entry): Add stub_cache field.
(arm_stub_hash_lookup): Define.
(elf32_arm_link_hash_table): Add stub_hash_table, stub_bfd,
add_stub_section, layout_sections_again, stub_group, bfd_count,
top_index, input_list fields.
(elf32_arm_link_hash_newfunc): Init new field.
(stub_hash_newfunc): New function.
(elf32_arm_link_hash_table_create): Init stub_hash_table.
(elf32_arm_hash_table_free): New function.
(arm_type_of_stub): New function.
(elf32_arm_stub_name): New function.
(elf32_arm_get_stub_entry): New function.
(elf32_arm_stub_add_mapping_symbol): New function.
(elf32_arm_add_stub): New function.
(arm_build_one_stub): New function.
(arm_size_one_stub): New function.
(elf32_arm_setup_section_lists): New function.
(elf32_arm_next_input_section): New function.
(group_sections): New function.
(elf32_arm_size_stubs): New function.
(elf32_arm_build_stubs): New function.
(bfd_elf32_arm_add_glue_sections_to_bfd): Skip stub sections.
(bfd_elf32_arm_process_before_allocation): No longer handle
R_ARM_CALL and R_ARM_THM_CALL.
(using_thumb_only): New function.
(elf32_arm_final_link_relocate): Redirect calls to stub if range
exceeds encoding capabilities.
(bfd_elf32_bfd_link_hash_table_free): Define.
* bfd-in.h (R_ARM_max): Fix value to 130.
(elf32_arm_setup_section_lists): Protype.
(elf32_arm_next_input_section): Protype.
(elf32_arm_size_stubs): Protype.
(elf32_arm_build_stubs): Protype.
ld/
* emultempl/armelf.em (build_section_lists): New function.
(stub_file): Define.
(need_laying_out): Define.
(group_size): Define.
(hook_stub_info): Define.
(hook_in_stub): New function.
(elf32_arm_add_stub_section): New function.
(gldarm_layout_sections_again): New function.
(gld${EMULATION_NAME}_finish): Replace arm_elf_finish(). Generate
stubs for long calls if needed.
(arm_elf_create_output_section_statements): create stub_file bfd.
(arm_for_each_input_file_wrapper): New function.
(arm_lang_for_each_input_file): New function.
(lang_for_each_input_file): Define.
(PARSE_AND_LIST_PROLOGUE): Add option token OPTION_STUBGROUP_SIZE.
(PARSE_AND_LIST_LONGOPTS): Add option stub-group-size.
(PARSE_AND_LIST_OPTIONS): Add option stub-group-size.
(PARSE_AND_LIST_ARGS_CASES): Add OPTION_STUBGROUP_SIZE case.
(LDEMUL_FINISH): Update to gld${EMULATION_NAME}_finish.
* ld/lang.c (print_input_statement): Skip if bfd has
BFD_LINKER_CREATED.
ld/testsuite
* ld-arm/arm-elf.exp (armelftests): Add farcall-arm-arm,
farcall-arm-arm-pic-veneer, farcall-arm-arm-be8 farcall-arm-thumb,
farcall-arm-thumb-blx, farcall-arm-thumb-pic-veneer,
farcall-arm-thumb-blx-pic-veneer, farcall-thumb-thumb,
farcall-thumb-thumb-pic-veneer, farcall-thumb-thumb-blx,
farcall-thumb-thumb-m, farcall-thumb-thumb-m-pic-veneer,
farcall-thumb-thumb-blx-pic-veneer, farcall-thumb-arm,
farcall-thumb-arm-pic-veneer, farcall-thumb-arm-blx,
farcall-thumb-arm-blx-pic-veneer.
Change thumb2-bl-as-thumb1-bad, thumb2-bl-bad.
* ld-arm/thumb2-bl-as-thumb1-bad.d: Reflects farcall stub
generation.
* ld-arm/thumb2-bl-bad.d: Likewise.
* ld-arm/thumb2-bl-as-thumb1-bad.s: Update comments.
* ld-arm/thumb2-bl-bad.s: Likewise.
19 lines
290 B
ArmAsm
19 lines
290 B
ArmAsm
@ Test to ensure that a Thumb to Thumb call exceeding 4Mb generates a stub.
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.global _start
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.syntax unified
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@ We will place the section .text at 0x1000.
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.text
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.thumb_func
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_start:
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bl bar
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@ We will place the section .foo at 0x02001014.
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.section .foo, "xa"
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.thumb_func
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bar:
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bx lr
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