0db3a5a93e
Fix handling of relocations with r_extern == 0. If r_extern == 0 then r_symbolnum is an index of a section rather than a symbol index. Patch by Seiya Nuta and Alexander Shaposhnikov. Test plan: make check-all Differential revision: https://reviews.llvm.org/D78946
96 lines
3.0 KiB
Plaintext
96 lines
3.0 KiB
Plaintext
# RUN: yaml2obj %s -o %t
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## Show that llvm-objcopy copies relocation entries where r_extern = 0.
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# RUN: llvm-objcopy %t %t2
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# RUN: cmp %t %t2
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## Show that llvm-objcopy updates section indices properly.
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# RUN: llvm-objcopy --remove-section=__DATA,__foo %t %t3
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# RUN: llvm-objdump --macho --reloc %t3 | FileCheck %s
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# CHECK: Relocation information (__DATA,__bar) 2 entries
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# CHECK-NEXT: address pcrel length extern type scattered symbolnum/value
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# CHECK-NEXT: 00000000 False quad False SUB False 2 (__DATA,__bar)
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# CHECK-NEXT: 00000000 False quad False UNSIGND False 1 (__TEXT,__text)
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--- !mach-o
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FileHeader:
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magic: 0xFEEDFACF
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cputype: 0x01000007
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cpusubtype: 0x00000003
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filetype: 0x00000001
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ncmds: 1
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sizeofcmds: 312
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flags: 0x00000000
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reserved: 0x00000000
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LoadCommands:
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- cmd: LC_SEGMENT_64
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cmdsize: 312
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segname: ''
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vmaddr: 0
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vmsize: 24
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fileoff: 344
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filesize: 24
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maxprot: 7
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initprot: 7
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nsects: 3
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flags: 0
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Sections:
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- sectname: __text
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segname: __TEXT
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addr: 0x0000000000000000
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size: 8
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offset: 0x00000158
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align: 0
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reloff: 0x00000000
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nreloc: 0
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flags: 0x80000000
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reserved1: 0x00000000
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reserved2: 0x00000000
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reserved3: 0x00000000
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content: '0000000000000000'
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- sectname: __foo
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segname: __DATA
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addr: 0x0000000000000008
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size: 8
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offset: 0x00000160
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align: 0
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reloff: 0x00000000
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nreloc: 0
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flags: 0x00000000
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reserved1: 0x00000000
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reserved2: 0x00000000
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reserved3: 0x00000000
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content: '0000000000000000'
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- sectname: __bar
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segname: __DATA
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addr: 0x0000000000000010
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size: 8
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offset: 0x00000168
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align: 0
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reloff: 0x00000170
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nreloc: 2
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flags: 0x00000000
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reserved1: 0x00000000
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reserved2: 0x00000000
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reserved3: 0x00000000
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content: F0FFFFFFFFFFFFFF
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relocations:
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- address: 0x00000000
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symbolnum: 3
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pcrel: false
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length: 3
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extern: false
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type: 5
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scattered: false
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value: 0
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- address: 0x00000000
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symbolnum: 1
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pcrel: false
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length: 3
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extern: false
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type: 0
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scattered: false
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value: 0
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...
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