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57 lines
2.0 KiB
57 lines
2.0 KiB
## Show that llvm-objcopy can replace the symbol table with a new one.
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# RUN: yaml2obj %s -o %t
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# RUN: llvm-objcopy -R .symtab --add-symbol newsym=1234 %t %t2
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# RUN: llvm-readelf -S -s %t2 | FileCheck %s --match-full-lines
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# CHECK: There are 5 section headers, starting at offset {{.+}}:
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# CHECK: [Nr] Name Type Address Off Size ES Flg Lk Inf Al
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# CHECK-NEXT: [ 0] NULL 0000000000000000 {{.+}} 000000 00 0 0 0
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# CHECK-NEXT: [ 1] .text PROGBITS 0000000000001000 {{.+}} 000040 00 AX 0 0 16
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# CHECK-NEXT: [ 2] .strtab STRTAB 0000000000000000 {{.+}} 000001 00 0 0 1
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# CHECK-NEXT: [ 3] .shstrtab STRTAB 0000000000000000 {{.+}} 000028 00 0 0 1
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# CHECK-NEXT: [ 4] .symtab SYMTAB 0000000000000000 {{.+}} 000030 18 3 1 8
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# CHECK: Symbol table '.symtab' contains 2 entries:
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# CHECK-NEXT: Num: Value Size Type Bind Vis Ndx Name
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# CHECK-NEXT: 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
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# CHECK-NEXT: 1: 00000000000004d2 0 NOTYPE GLOBAL DEFAULT ABS newsym
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## --set-section-flags works for newly created .symtab, which GNU objcopy does not do.
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# RUN: llvm-objcopy -R .symtab --add-symbol newsym=1234 --set-section-flags .symtab=readonly,exclude %t %t3
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# RUN: llvm-readelf -S %t3 | FileCheck %s --check-prefix=CHECK2
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# CHECK2: [ 4] .symtab SYMTAB 0000000000000000 {{.+}} 000030 18 E 3 1 8
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_DYN
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Machine: EM_X86_64
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Sections:
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- Name: .text
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Type: SHT_PROGBITS
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Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
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Address: 0x1000
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AddressAlign: 0x0000000000000010
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Size: 64
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Symbols:
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- Name: foo
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Type: STT_FUNC
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Section: .text
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Value: 0x1000
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Size: 8
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- Name: bar
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Type: STT_FUNC
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Section: .text
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Value: 0x1008
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Size: 8
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- Name: baz
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Type: STT_FUNC
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Section: .text
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Value: 0x1010
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Size: 8
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