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[ELF][llvm-objdump] Treat dynamic tag values as virtual addresses ins…
…tead of offsets The ELF gABI requires the tag values of DT_REL, DT_RELA and DT_JMPREL to be treated as virtual addresses. They were treated as offsets. Fixes PR41832. Differential Revision: https://reviews.llvm.org/D62972 llvm-svn: 362969
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llvm/test/tools/llvm-objdump/X86/elf-dynamic-relocs.test
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## Show that llvm-objdump can dump dynamic relocations. | ||
## Specifically, we are checking that the tags DT_RELA, DT_REL and DT_JMPREL | ||
## properly identify relocation tables. | ||
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||
# RUN: yaml2obj %s -o %t | ||
# RUN: llvm-objdump --dynamic-reloc %t | FileCheck --implicit-check-not=R_X86 %s | ||
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# CHECK: file format ELF64-x86-64 | ||
# CHECK: DYNAMIC RELOCATION RECORDS | ||
# CHECK-NEXT: 0000000000000000 R_X86_64_RELATIVE *ABS* | ||
# CHECK-NEXT: 0000000000000000 R_X86_64_JUMP_SLOT bar | ||
# CHECK-NEXT: 0000000000000008 R_X86_64_NONE foo | ||
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--- !ELF | ||
FileHeader: | ||
Class: ELFCLASS64 | ||
Data: ELFDATA2LSB | ||
Type: ET_DYN | ||
Machine: EM_X86_64 | ||
Sections: | ||
- Name: .foo | ||
Type: SHT_PROGBITS | ||
Size: 16 | ||
Flags: [SHF_ALLOC] | ||
Address: 0x100000 | ||
AddressAlign: 0x100 | ||
- Name: .got.plt | ||
Type: SHT_PROGBITS | ||
Flags: [SHF_WRITE, SHF_ALLOC] | ||
Address: 0x100100 | ||
AddressAlign: 0x1000 | ||
- Name: .rela.dyn | ||
Type: SHT_RELA | ||
Address: 0x100200 | ||
AddressAlign: 0x100 | ||
Info: .foo | ||
Link: .dynsym | ||
Flags: [SHF_ALLOC] | ||
Relocations: | ||
- Offset: 0 | ||
Type: R_X86_64_RELATIVE | ||
Addend: 0 | ||
- Name: .rela.plt | ||
Type: SHT_RELA | ||
Address: 0x100300 | ||
AddressAlign: 0x100 | ||
Info: .got.plt | ||
Link: .dynsym | ||
Flags: [SHF_ALLOC] | ||
Relocations: | ||
- Offset: 0 | ||
Symbol: 2 # bar | ||
Type: R_X86_64_JUMP_SLOT | ||
- Name: .rel.dyn | ||
Type: SHT_REL | ||
Address: 0x100400 | ||
AddressAlign: 0x100 | ||
Info: .foo | ||
Link: .dynsym | ||
Flags: [SHF_ALLOC] | ||
Relocations: | ||
- Offset: 8 | ||
Symbol: 1 # foo | ||
Type: R_X86_64_NONE | ||
- Name: .dynamic | ||
Type: SHT_DYNAMIC | ||
Address: 0x100500 | ||
AddressAlign: 0x100 | ||
Link: .dynstr | ||
Flags: [SHF_ALLOC] | ||
Entries: | ||
- Tag: DT_RELA | ||
Value: 0x100200 | ||
- Tag: DT_RELASZ | ||
Value: 24 | ||
- Tag: DT_RELAENT | ||
Value: 24 | ||
- Tag: DT_JMPREL | ||
Value: 0x100300 | ||
- Tag: DT_PLTREL | ||
Value: 7 | ||
- Tag: DT_PLTRELSZ | ||
Value: 24 | ||
- Tag: DT_REL | ||
Value: 0x100400 | ||
- Tag: DT_RELSZ | ||
Value: 16 | ||
- Tag: DT_RELENT | ||
Value: 16 | ||
- Tag: DT_NULL | ||
Value: 0 | ||
ProgramHeaders: | ||
- Type: PT_LOAD | ||
VAddr: 0x100000 | ||
Align: 0x100 | ||
Sections: | ||
- Section: .foo | ||
- Section: .rela.dyn | ||
- Section: .rela.plt | ||
- Section: .rel.dyn | ||
- Section: .dynamic | ||
- Type: PT_DYNAMIC | ||
VAddr: 0x100500 | ||
Align: 0x100 | ||
Sections: | ||
- Section: .dynamic | ||
DynamicSymbols: | ||
- Name: foo | ||
Section: .foo | ||
Binding: STB_GLOBAL | ||
- Name: bar | ||
Type: STT_FUNC | ||
Binding: STB_GLOBAL |