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Fix injecting data into a .o file

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Use section.Offset instead of Addr.

Test: symbol_inject -i test.o -o test2.o -s symbol -v value
Change-Id: I9c54a5a245e7674b8370fc27ba7d0b9995f2ed08
This commit is contained in:
Colin Cross
2018-02-15 15:54:14 -08:00
parent f7eac7a2ac
commit 52226ad920
1 changed files with 1 additions and 1 deletions
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cmd/symbol_inject/elf.go
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@@ -56,7 +56,7 @@ func calculateElfSymbolOffset(file *elf.File, symbol elf.Symbol) (uint64, error)
case elf.ET_REL: case elf.ET_REL:
// "In relocatable files, st_value holds a section offset for a defined symbol. // "In relocatable files, st_value holds a section offset for a defined symbol.
// That is, st_value is an offset from the beginning of the section that st_shndx identifies." // That is, st_value is an offset from the beginning of the section that st_shndx identifies."
return file.Sections[symbol.Section].Addr + symbol.Value, nil return section.Offset + symbol.Value, nil
case elf.ET_EXEC, elf.ET_DYN: case elf.ET_EXEC, elf.ET_DYN:
// "In executable and shared object files, st_value holds a virtual address. To make these // "In executable and shared object files, st_value holds a virtual address. To make these
// files’ symbols more useful for the dynamic linker, the section offset (file interpretation) // files’ symbols more useful for the dynamic linker, the section offset (file interpretation)