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-rw-r--r--llvm/tools/llvm-objcopy/llvm-objcopy.cpp8
1 files changed, 8 insertions, 0 deletions
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;
}
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