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-rw-r--r--lld/ELF/SymbolTable.cpp45
-rw-r--r--lld/ELF/SymbolTable.h1
2 files changed, 26 insertions, 20 deletions
diff --git a/lld/ELF/SymbolTable.cpp b/lld/ELF/SymbolTable.cpp
index c5e12246a24..32cb64d75c8 100644
--- a/lld/ELF/SymbolTable.cpp
+++ b/lld/ELF/SymbolTable.cpp
@@ -643,30 +643,35 @@ findAllDemangled(const std::map<std::string, std::vector<SymbolBody *>> &D,
return Res;
}
+// If there's only one anonymous version definition in a version
+// script file, the script does not actullay define any symbol version,
+// but just specifies symbols visibilities. We assume that the script was
+// in the form of { global: foo; bar; local *; }. So, local is default.
+// In this function, we make specified symbols global.
+template <class ELFT> void SymbolTable<ELFT>::handleAnonymousVersion() {
+ std::vector<StringRef> Patterns;
+ for (SymbolVersion &Sym : Config->VersionScriptGlobals) {
+ if (hasWildcard(Sym.Name)) {
+ Patterns.push_back(Sym.Name);
+ continue;
+ }
+ if (SymbolBody *B = find(Sym.Name))
+ B->symbol()->VersionId = VER_NDX_GLOBAL;
+ }
+ if (Patterns.empty())
+ return;
+ Regex Re = compileGlobPatterns(Patterns);
+ std::vector<SymbolBody *> Syms = findAll(Re);
+ for (SymbolBody *B : Syms)
+ B->symbol()->VersionId = VER_NDX_GLOBAL;
+}
+
// This function processes version scripts by updating VersionId
// member of symbols.
template <class ELFT> void SymbolTable<ELFT>::scanVersionScript() {
- // If there's only one anonymous version definition in a version
- // script file, the script does not actullay define any symbol version,
- // but just specifies symbols visibilities. We assume that the script was
- // in the form of { global: foo; bar; local *; }. So, local is default.
- // Here, we make specified symbols global.
+ // Handle edge cases first.
if (!Config->VersionScriptGlobals.empty()) {
- std::vector<StringRef> Globs;
- for (SymbolVersion &Sym : Config->VersionScriptGlobals) {
- if (hasWildcard(Sym.Name)) {
- Globs.push_back(Sym.Name);
- continue;
- }
- if (SymbolBody *B = find(Sym.Name))
- B->symbol()->VersionId = VER_NDX_GLOBAL;
- }
- if (Globs.empty())
- return;
- Regex Re = compileGlobPatterns(Globs);
- std::vector<SymbolBody *> Syms = findAll(Re);
- for (SymbolBody *B : Syms)
- B->symbol()->VersionId = VER_NDX_GLOBAL;
+ handleAnonymousVersion();
return;
}
diff --git a/lld/ELF/SymbolTable.h b/lld/ELF/SymbolTable.h
index 091befdeced..d0f376ca2a9 100644
--- a/lld/ELF/SymbolTable.h
+++ b/lld/ELF/SymbolTable.h
@@ -102,6 +102,7 @@ private:
void reportDuplicate(SymbolBody *Existing, InputFile *NewFile);
std::map<std::string, std::vector<SymbolBody *>> getDemangledSyms();
+ void handleAnonymousVersion();
struct SymIndex {
SymIndex(int Idx, bool Traced) : Idx(Idx), Traced(Traced) {}
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