353057a53c
add_fde_encoding. Remove need_relative. * elf-eh-frame.c (extra_augmentation_string_bytes) (extra_augmentation_data_bytes, size_of_output_cie_fde): New functions. (_bfd_elf_discard_section_eh_frame): Consider changing the FDE encoding in cases where the CIE has no existing 'R' augmentation. Use size_of_output_cie_fde when assigning offsets. Use the final offset as the new section size. (_bfd_elf_eh_frame_section_offset): Remove need_relative handling. Account for any extra augmentation bytes in the returned offset. (_bfd_elf_write_section_eh_frame): Rework so that the entries are moved before being modified. Pad growing entries with DW_CFA_nops. Add 'z' and 'R' augmentations as directed by add_augmentation_size and add_fde_encoding.
425 lines
11 KiB
Makefile
425 lines
11 KiB
Makefile
#name: MIPS eh-frame 1, n64
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#source: eh-frame1.s
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#source: eh-frame1.s
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#as: -EB -64 --defsym alignment=3 --defsym fill=0x40
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#readelf: --relocs -wf
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#ld: -shared -melf64btsmip -Teh-frame1.ld
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Relocation section '\.rel\.dyn' .*:
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*Offset .*
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000000000000 000000000000 R_MIPS_NONE *
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*Type2: R_MIPS_NONE *
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*Type3: R_MIPS_NONE *
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# Initial PCs for the FDEs attached to CIE 0x120
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000000030148 000000001203 R_MIPS_REL32 *
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*Type2: R_MIPS_64 *
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*Type3: R_MIPS_NONE *
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000000030168 000000001203 R_MIPS_REL32 *
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*Type2: R_MIPS_64 *
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*Type3: R_MIPS_NONE *
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# Likewise CIE 0x340
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000000030368 000000001203 R_MIPS_REL32 *
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*Type2: R_MIPS_64 *
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*Type3: R_MIPS_NONE *
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000000030388 000000001203 R_MIPS_REL32 *
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*Type2: R_MIPS_64 *
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*Type3: R_MIPS_NONE *
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0000000300cb 000500001203 R_MIPS_REL32 0000000000000000 foo
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*Type2: R_MIPS_64 *
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*Type3: R_MIPS_NONE *
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000000030138 000500001203 R_MIPS_REL32 0000000000000000 foo
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*Type2: R_MIPS_64 *
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*Type3: R_MIPS_NONE *
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000000030192 000500001203 R_MIPS_REL32 0000000000000000 foo
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*Type2: R_MIPS_64 *
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*Type3: R_MIPS_NONE *
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0000000302eb 000500001203 R_MIPS_REL32 0000000000000000 foo
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*Type2: R_MIPS_64 *
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*Type3: R_MIPS_NONE *
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000000030358 000500001203 R_MIPS_REL32 0000000000000000 foo
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*Type2: R_MIPS_64 *
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*Type3: R_MIPS_NONE *
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0000000303b2 000500001203 R_MIPS_REL32 0000000000000000 foo
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*Type2: R_MIPS_64 *
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*Type3: R_MIPS_NONE *
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#...
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The section \.eh_frame contains:
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00000000 00000014 00000000 CIE
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Version: 1
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Augmentation: "zR"
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Code alignment factor: 1
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Data alignment factor: 4
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Return address column: 31
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Augmentation data: 10
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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00000018 0000001c 0000001c FDE cie=00000000 pc=00020000..00020010
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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00000038 0000001c 0000003c FDE cie=00000000 pc=00020010..00020030
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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# basic2 removed
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00000058 0000001c 0000005c FDE cie=00000000 pc=00020030..00020060
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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# basic3 removed
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00000078 0000001c 0000007c FDE cie=00000000 pc=00020060..000200a0
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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# basic4 removed
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00000098 0000001c 0000009c FDE cie=00000000 pc=000200a0..000200f0
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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000000b8 00000024 00000000 CIE
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Version: 1
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Augmentation: "zRP"
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Code alignment factor: 1
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Data alignment factor: 4
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Return address column: 31
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Augmentation data: 10 00 00 00 00 00 00 00 00 00
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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000000e0 0000001c 0000002c FDE cie=000000b8 pc=000200f0..00020100
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DW_CFA_advance_loc: 0 to 000200f0
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DW_CFA_advance_loc: 0 to 000200f0
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DW_CFA_advance_loc: 0 to 000200f0
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DW_CFA_advance_loc: 0 to 000200f0
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DW_CFA_advance_loc: 0 to 000200f0
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DW_CFA_advance_loc: 0 to 000200f0
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DW_CFA_advance_loc: 0 to 000200f0
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00000100 0000001c 0000004c FDE cie=000000b8 pc=00020100..00020120
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DW_CFA_advance_loc: 0 to 00020100
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DW_CFA_advance_loc: 0 to 00020100
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DW_CFA_advance_loc: 0 to 00020100
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DW_CFA_advance_loc: 0 to 00020100
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DW_CFA_advance_loc: 0 to 00020100
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DW_CFA_advance_loc: 0 to 00020100
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DW_CFA_advance_loc: 0 to 00020100
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00000120 0000001c 00000000 CIE
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Version: 1
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Augmentation: "zP"
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Code alignment factor: 1
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Data alignment factor: 4
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Return address column: 31
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Augmentation data: 50 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00000140 0000001c 00000024 FDE cie=00000120 pc=00020120..00020130
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DW_CFA_advance_loc: 0 to 00020120
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DW_CFA_advance_loc: 0 to 00020120
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DW_CFA_advance_loc: 0 to 00020120
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DW_CFA_advance_loc: 0 to 00020120
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DW_CFA_advance_loc: 0 to 00020120
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DW_CFA_advance_loc: 0 to 00020120
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DW_CFA_advance_loc: 0 to 00020120
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00000160 0000001c 00000044 FDE cie=00000120 pc=00020130..00020150
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DW_CFA_advance_loc: 0 to 00020130
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DW_CFA_advance_loc: 0 to 00020130
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DW_CFA_advance_loc: 0 to 00020130
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DW_CFA_advance_loc: 0 to 00020130
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DW_CFA_advance_loc: 0 to 00020130
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DW_CFA_advance_loc: 0 to 00020130
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DW_CFA_advance_loc: 0 to 00020130
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00000180 0000001c 00000000 CIE
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Version: 1
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Augmentation: "zPR"
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Code alignment factor: 1
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Data alignment factor: 4
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Return address column: 31
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Augmentation data: 00 00 00 00 00 00 00 00 00 10
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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000001a0 0000001c 00000024 FDE cie=00000180 pc=00020150..00020160
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DW_CFA_advance_loc: 0 to 00020150
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DW_CFA_advance_loc: 0 to 00020150
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DW_CFA_advance_loc: 0 to 00020150
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DW_CFA_advance_loc: 0 to 00020150
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DW_CFA_advance_loc: 0 to 00020150
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DW_CFA_advance_loc: 0 to 00020150
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DW_CFA_advance_loc: 0 to 00020150
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# FDE for .discard removed
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# zPR2 removed
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000001c0 0000001c 00000044 FDE cie=00000180 pc=00020160..00020190
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DW_CFA_advance_loc: 0 to 00020160
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DW_CFA_advance_loc: 0 to 00020160
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DW_CFA_advance_loc: 0 to 00020160
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DW_CFA_advance_loc: 0 to 00020160
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DW_CFA_advance_loc: 0 to 00020160
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DW_CFA_advance_loc: 0 to 00020160
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DW_CFA_advance_loc: 0 to 00020160
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000001e0 0000001c 00000064 FDE cie=00000180 pc=00020190..000201d0
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DW_CFA_advance_loc: 0 to 00020190
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DW_CFA_advance_loc: 0 to 00020190
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DW_CFA_advance_loc: 0 to 00020190
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DW_CFA_advance_loc: 0 to 00020190
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DW_CFA_advance_loc: 0 to 00020190
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DW_CFA_advance_loc: 0 to 00020190
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DW_CFA_advance_loc: 0 to 00020190
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00000200 00000014 00000000 CIE
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Version: 1
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Augmentation: "zR"
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Code alignment factor: 1
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Data alignment factor: 4
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Return address column: 31
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Augmentation data: 10
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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00000218 0000001c 0000001c FDE cie=00000200 pc=000201d0..000201e0
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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# basic1 removed, followed by repeat of above
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00000238 0000001c 0000003c FDE cie=00000200 pc=000201e0..000201f0
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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00000258 0000001c 0000005c FDE cie=00000200 pc=000201f0..00020210
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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00000278 0000001c 0000007c FDE cie=00000200 pc=00020210..00020240
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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00000298 0000001c 0000009c FDE cie=00000200 pc=00020240..00020280
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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000002b8 0000001c 000000bc FDE cie=00000200 pc=00020280..000202d0
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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000002d8 00000024 00000000 CIE
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Version: 1
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Augmentation: "zRP"
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Code alignment factor: 1
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Data alignment factor: 4
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Return address column: 31
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Augmentation data: 10 00 00 00 00 00 00 00 00 00
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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00000300 0000001c 0000002c FDE cie=000002d8 pc=000202d0..000202e0
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DW_CFA_advance_loc: 0 to 000202d0
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DW_CFA_advance_loc: 0 to 000202d0
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DW_CFA_advance_loc: 0 to 000202d0
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DW_CFA_advance_loc: 0 to 000202d0
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DW_CFA_advance_loc: 0 to 000202d0
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DW_CFA_advance_loc: 0 to 000202d0
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DW_CFA_advance_loc: 0 to 000202d0
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00000320 0000001c 0000004c FDE cie=000002d8 pc=000202e0..00020300
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DW_CFA_advance_loc: 0 to 000202e0
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DW_CFA_advance_loc: 0 to 000202e0
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DW_CFA_advance_loc: 0 to 000202e0
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DW_CFA_advance_loc: 0 to 000202e0
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DW_CFA_advance_loc: 0 to 000202e0
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DW_CFA_advance_loc: 0 to 000202e0
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DW_CFA_advance_loc: 0 to 000202e0
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00000340 0000001c 00000000 CIE
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Version: 1
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Augmentation: "zP"
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Code alignment factor: 1
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Data alignment factor: 4
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Return address column: 31
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Augmentation data: 50 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00000360 0000001c 00000024 FDE cie=00000340 pc=00020300..00020310
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DW_CFA_advance_loc: 0 to 00020300
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DW_CFA_advance_loc: 0 to 00020300
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DW_CFA_advance_loc: 0 to 00020300
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DW_CFA_advance_loc: 0 to 00020300
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DW_CFA_advance_loc: 0 to 00020300
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DW_CFA_advance_loc: 0 to 00020300
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DW_CFA_advance_loc: 0 to 00020300
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00000380 0000001c 00000044 FDE cie=00000340 pc=00020310..00020330
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DW_CFA_advance_loc: 0 to 00020310
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DW_CFA_advance_loc: 0 to 00020310
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DW_CFA_advance_loc: 0 to 00020310
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DW_CFA_advance_loc: 0 to 00020310
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DW_CFA_advance_loc: 0 to 00020310
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DW_CFA_advance_loc: 0 to 00020310
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DW_CFA_advance_loc: 0 to 00020310
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000003a0 0000001c 00000000 CIE
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Version: 1
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Augmentation: "zPR"
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Code alignment factor: 1
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Data alignment factor: 4
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Return address column: 31
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Augmentation data: 00 00 00 00 00 00 00 00 00 10
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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000003c0 0000001c 00000024 FDE cie=000003a0 pc=00020330..00020340
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DW_CFA_advance_loc: 0 to 00020330
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DW_CFA_advance_loc: 0 to 00020330
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DW_CFA_advance_loc: 0 to 00020330
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DW_CFA_advance_loc: 0 to 00020330
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DW_CFA_advance_loc: 0 to 00020330
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DW_CFA_advance_loc: 0 to 00020330
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DW_CFA_advance_loc: 0 to 00020330
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000003e0 0000001c 00000044 FDE cie=000003a0 pc=00020340..00020370
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DW_CFA_advance_loc: 0 to 00020340
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DW_CFA_advance_loc: 0 to 00020340
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DW_CFA_advance_loc: 0 to 00020340
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DW_CFA_advance_loc: 0 to 00020340
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DW_CFA_advance_loc: 0 to 00020340
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DW_CFA_advance_loc: 0 to 00020340
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DW_CFA_advance_loc: 0 to 00020340
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00000400 0000001c 00000064 FDE cie=000003a0 pc=00020370..000203b0
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DW_CFA_advance_loc: 0 to 00020370
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DW_CFA_advance_loc: 0 to 00020370
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DW_CFA_advance_loc: 0 to 00020370
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DW_CFA_advance_loc: 0 to 00020370
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DW_CFA_advance_loc: 0 to 00020370
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DW_CFA_advance_loc: 0 to 00020370
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DW_CFA_advance_loc: 0 to 00020370
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00000420 00000014 00000000 CIE
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Version: 1
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Augmentation: "zR"
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Code alignment factor: 1
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Data alignment factor: 4
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Return address column: 31
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Augmentation data: 10
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_advance_loc: 0 to 00000000
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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00000438 0000001c 0000001c FDE cie=00000420 pc=000203b0..000203c0
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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