diff options
Diffstat (limited to 'llvm/tools/llvm-objcopy')
| -rw-r--r-- | llvm/tools/llvm-objcopy/Opts.td | 5 | ||||
| -rw-r--r-- | llvm/tools/llvm-objcopy/llvm-objcopy.cpp | 8 |
2 files changed, 13 insertions, 0 deletions
diff --git a/llvm/tools/llvm-objcopy/Opts.td b/llvm/tools/llvm-objcopy/Opts.td index 98a0856c347..62885967993 100644 --- a/llvm/tools/llvm-objcopy/Opts.td +++ b/llvm/tools/llvm-objcopy/Opts.td @@ -67,3 +67,8 @@ def L : JoinedOrSeparate<["-"], "L">, defm globalize_symbol : Eq<"globalize-symbol">, MetaVarName<"symbol">, HelpText<"Mark <symbol> as global">; +defm weaken_symbol : Eq<"weaken-symbol">, + MetaVarName<"symbol">, + HelpText<"Mark <symbol> as weak">; +def W : JoinedOrSeparate<["-"], "W">, + Alias<weaken_symbol>; diff --git a/llvm/tools/llvm-objcopy/llvm-objcopy.cpp b/llvm/tools/llvm-objcopy/llvm-objcopy.cpp index 59b07828cbd..4dd8d36ee08 100644 --- a/llvm/tools/llvm-objcopy/llvm-objcopy.cpp +++ b/llvm/tools/llvm-objcopy/llvm-objcopy.cpp @@ -120,6 +120,7 @@ struct CopyConfig { std::vector<StringRef> AddSection; std::vector<StringRef> SymbolsToLocalize; std::vector<StringRef> SymbolsToGlobalize; + std::vector<StringRef> SymbolsToWeaken; StringMap<StringRef> SymbolsToRename; bool StripAll; bool StripAllGNU; @@ -328,6 +329,11 @@ void HandleArgs(const CopyConfig &Config, Object &Obj, const Reader &Reader, is_contained(Config.SymbolsToGlobalize, Sym.Name)) Sym.Binding = STB_GLOBAL; + if (!Config.SymbolsToWeaken.empty() && + is_contained(Config.SymbolsToWeaken, Sym.Name) && + Sym.Binding == STB_GLOBAL) + Sym.Binding = STB_WEAK; + const auto I = Config.SymbolsToRename.find(Sym.Name); if (I != Config.SymbolsToRename.end()) Sym.Name = I->getValue(); @@ -421,6 +427,8 @@ CopyConfig ParseObjcopyOptions(ArrayRef<const char *> ArgsArr) { Config.SymbolsToLocalize.push_back(Arg->getValue()); for (auto Arg : InputArgs.filtered(OBJCOPY_globalize_symbol)) Config.SymbolsToGlobalize.push_back(Arg->getValue()); + for (auto Arg : InputArgs.filtered(OBJCOPY_weaken_symbol)) + Config.SymbolsToWeaken.push_back(Arg->getValue()); return Config; } |
