diff options
Diffstat (limited to 'src/patchelf.h')
| -rw-r--r-- | src/patchelf.h | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/src/patchelf.h b/src/patchelf.h index 8f96ec6..9fab18c 100644 --- a/src/patchelf.h +++ b/src/patchelf.h @@ -169,6 +169,13 @@ public: void renameDynamicSymbols(const std::unordered_map<std::string_view, std::string>&); + void clearSymbolVersions(const std::set<std::string> & syms); + + enum class ExecstackMode { print, set, clear }; + + void modifyExecstack(ExecstackMode op); + +private: struct GnuHashTable { using BloomWord = Elf_Addr; struct Header { @@ -215,14 +222,20 @@ public: return info; } + template<class ElfRelType, class RemapFn> + void changeRelocTableSymIds(const Elf_Shdr& shdr, RemapFn&& old2newSymId) + { + static_assert(std::is_same_v<ElfRelType, Elf_Rel> || std::is_same_v<ElfRelType, Elf_Rela>); - void clearSymbolVersions(const std::set<std::string> & syms); - - enum class ExecstackMode { print, set, clear }; - - void modifyExecstack(ExecstackMode op); - -private: + for (auto& r : getSectionSpan<ElfRelType>(shdr)) + { + auto info = rdi(r.r_info); + auto oldSymIdx = rel_getSymId(info); + auto newSymIdx = old2newSymId(oldSymIdx); + if (newSymIdx != oldSymIdx) + wri(r.r_info, rel_setSymId(info, newSymIdx)); + } + } /* Convert an integer in big or little endian representation (as specified by the ELF header) to this platform's integer |