a504d23a83
bfd * bfd-in2.h: Regenerate.
* bfd-in.h (bfd_arm_stm32l4xx_fix): New enum. Specify how
STM32L4XX instruction scanning should be done.
(bfd_elf32_arm_set_stm32l4xx_fix)
(bfd_elf32_arm_stm32l4xx_erratum_scan)
(bfd_elf32_arm_stm32l4xx_fix_veneer_locations): Add prototypes.
(bfd_elf32_arm_set_target_relocs): Add stm32l4xx fix type argument
to prototype.
* elf32-arm.c (STM32L4XX_ERRATUM_VENEER_SECTION_NAME)
(STM32L4XX_ERRATUM_VENEER_ENTRY_NAME): Define macros.
(elf32_stm32l4xx_erratum_type): New enum.
(elf32_stm32l4xx_erratum_list): New struct. List of veneers or
jumps to veneers.
(_arm_elf_section_data): Add stm32l4xx_erratumcount,
stm32l4xx_erratumlist.
(elf32_arm_link_hash_table): Add stm32l4xx_erratum_glue_size,
stm32l4xx_fix and num_stm32l4xx_fixes fields.
(ctz): New function.
(popcount): New function.
(elf32_arm_link_hash_table_create): Initialize stm32l4xx_fix.
(put_thumb2_insn): New function.
(STM32L4XX_ERRATUM_LDM_VENEER_SIZE): Define. Size of a veneer for
LDM instructions.
(STM32L4XX_ERRATUM_VLDM_VENEER_SIZE): Define. Size of a veneer for
VLDM instructions.
(bfd_elf32_arm_allocate_interworking_sections): Initialise erratum
glue section.
(record_stm32l4xx_erratum_veneer) : New function. Create a single
veneer, and its associated symbols.
(bfd_elf32_arm_add_glue_sections_to_bfd): Add STM32L4XX erratum glue.
(bfd_elf32_arm_set_stm32l4xx_fix): New function. Set the type of
erratum workaround required.
(bfd_elf32_arm_stm32l4xx_fix_veneer_locations): New function. Find
out where veneers and branches to veneers have been placed in
virtual memory after layout.
(is_thumb2_ldmia): New function.
(is_thumb2_ldmdb): Likewise.
(is_thumb2_vldm ): Likewise.
(stm32l4xx_need_create_replacing_stub): New function. Decide if a
veneer must be emitted.
(bfd_elf32_arm_stm32l4xx_erratum_scan): Scan the sections of an
input BFD for potential erratum-triggering insns. Record results.
(bfd_elf32_arm_set_target_relocs): Set stm32l4xx_fix field in
global hash table.
(elf32_arm_size_dynamic_sections): Collect glue information.
(create_instruction_branch_absolute): New function.
(create_instruction_ldmia): Likewise.
(create_instruction_ldmdb): Likewise.
(create_instruction_mov): Likewise.
(create_instruction_sub): Likewise.
(create_instruction_vldmia): Likewise.
(create_instruction_vldmdb): Likewise.
(create_instruction_udf_w): Likewise.
(create_instruction_udf): Likewise.
(push_thumb2_insn32): Likewise.
(push_thumb2_insn16): Likewise.
(stm32l4xx_fill_stub_udf): Likewise.
(stm32l4xx_create_replacing_stub_ldmia): New function. Expands the
replacing stub for ldmia instructions.
(stm32l4xx_create_replacing_stub_ldmdb): Likewise for ldmdb.
(stm32l4xx_create_replacing_stub_vldm): Likewise for vldm.
(stm32l4xx_create_replacing_stub): New function. Dispatches the
stub emission to the appropriate functions.
(elf32_arm_write_section): Output veneers, and branches to veneers.
ld * ld.texinfo: Description of the STM32L4xx erratum workaround.
* emultempl/armelf.em (stm32l4xx_fix): New.
(arm_elf_before_allocation): Choose the type of fix, scan for
erratum.
(gld${EMULATION_NAME}_finish): Fix veneer locations.
(arm_elf_create_output_section_statements): Propagate
stm32l4xx_fix value.
(PARSE_AND_LIST_PROLOGUE): Define OPTION_STM32L4XX_FIX.
(PARSE_AND_LIST_LONGOPTS): Add entry for handling
--fix-stm32l4xx-629360.
(PARSE_AND_LIST_OPTION): Add entry for helping on
--fix-stm32l4xx-629360.
(PARSE_AND_LIST_ARGS_CASES): Treat OPTION_STM32L4XX_FIX.
tests * ld-arm/arm-elf.exp (armelftests_common): Add STM32L4XX
tests.
* ld-arm/stm32l4xx-cannot-fix-far-ldm.d: New.
* ld-arm/stm32l4xx-cannot-fix-far-ldm.s: Likewise.
* ld-arm/stm32l4xx-cannot-fix-it-block.d: Likewise.
* ld-arm/stm32l4xx-cannot-fix-it-block.s: Likewise.
* ld-arm/stm32l4xx-fix-all.d: Likewise.
* ld-arm/stm32l4xx-fix-all.s: Likewise.
* ld-arm/stm32l4xx-fix-it-block.d: Likewise.
* ld-arm/stm32l4xx-fix-it-block.s: Likewise.
* ld-arm/stm32l4xx-fix-ldm.d: Likewise.
* ld-arm/stm32l4xx-fix-ldm.s: Likewise.
* ld-arm/stm32l4xx-fix-vldm.d: Likewise.
* ld-arm/stm32l4xx-fix-vldm.s: Likewise.
49 lines
1.5 KiB
Makefile
49 lines
1.5 KiB
Makefile
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.*: file format elf32-littlearm.*
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Disassembly of section \.text:
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00008000 <__stm32l4xx_veneer_0>:
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8000: ecf9 0a08 vldmia r9!, {s1-s8}
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8004: ecf9 4a08 vldmia r9!, {s9-s16}
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8008: ecf9 8a08 vldmia r9!, {s17-s24}
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800c: ecf9 ca07 vldmia r9!, {s25-s31}
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8010: f1a9 097c sub\.w r9, r9, #124 ; 0x7c
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8014: f000 b826 b\.w 8064 <__stm32l4xx_veneer_0_r>
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00008018 <__stm32l4xx_veneer_1>:
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8018: ecf6 4a08 vldmia r6!, {s9-s16}
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801c: ecf6 8a08 vldmia r6!, {s17-s24}
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8020: ecf6 ca05 vldmia r6!, {s25-s29}
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8024: f000 b820 b\.w 8068 <__stm32l4xx_veneer_1_r>
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8028: f7f0 a000 udf\.w #0
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802c: f7f0 a000 udf\.w #0
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00008030 <__stm32l4xx_veneer_2>:
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8030: ecfd 0a08 vpop {s1-s8}
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8034: ecfd 4a01 vpop {s9}
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8038: f000 b818 b\.w 806c <__stm32l4xx_veneer_2_r>
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803c: f7f0 a000 udf\.w #0
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8040: f7f0 a000 udf\.w #0
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8044: f7f0 a000 udf\.w #0
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00008048 <__stm32l4xx_veneer_3>:
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8048: ed7b 0a08 vldmdb fp!, {s1-s8}
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804c: ed7b 4a08 vldmdb fp!, {s9-s16}
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8050: ed7b 8a08 vldmdb fp!, {s17-s24}
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8054: ed7b ca07 vldmdb fp!, {s25-s31}
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8058: f000 b80a b\.w 8070 <__stm32l4xx_veneer_3_r>
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805c: f7f0 a000 udf\.w #0
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00008060 <_start>:
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8060: f7ff bfce b\.w 8000 <__stm32l4xx_veneer_0>
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00008064 <__stm32l4xx_veneer_0_r>:
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8064: f7ff bfd8 b\.w 8018 <__stm32l4xx_veneer_1>
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00008068 <__stm32l4xx_veneer_1_r>:
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8068: f7ff bfe2 b\.w 8030 <__stm32l4xx_veneer_2>
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0000806c <__stm32l4xx_veneer_2_r>:
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806c: f7ff bfec b\.w 8048 <__stm32l4xx_veneer_3>
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