diff options
Diffstat (limited to 'ELF/Symbols.cpp')
| -rw-r--r-- | ELF/Symbols.cpp | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/ELF/Symbols.cpp b/ELF/Symbols.cpp index e8cd662c69ac..1d17f57f0c30 100644 --- a/ELF/Symbols.cpp +++ b/ELF/Symbols.cpp @@ -159,19 +159,12 @@ bool SymbolBody::isPreemptible() const { return true; } -// Overwrites all attributes except symbol name with Other's so that -// this symbol becomes an alias to Other. This is useful for handling -// some options such as --wrap. -// -// The reason why we want to keep the symbol name is because, if we -// copy symbol names, we'll end up having symbol tables in resulting -// executables or DSOs containing two or more identical symbols, which -// is just inconvenient. +// Overwrites all attributes with Other's so that this symbol becomes +// an alias to Other. This is useful for handling some options such as +// --wrap. void SymbolBody::copy(SymbolBody *Other) { - StringRef S = Name; memcpy(symbol()->Body.buffer, Other->symbol()->Body.buffer, sizeof(Symbol::Body)); - Name = S; } uint64_t SymbolBody::getVA(int64_t Addend) const { @@ -272,7 +265,12 @@ void SymbolBody::parseSymbolVersion() { } // It is an error if the specified version is not defined. - error(toString(File) + ": symbol " + S + " has undefined version " + Verstr); + // Usually version script is not provided when linking executable, + // but we may still want to override a versioned symbol from DSO, + // so we do not report error in this case. + if (Config->Shared) + error(toString(File) + ": symbol " + S + " has undefined version " + + Verstr); } Defined::Defined(Kind K, StringRefZ Name, bool IsLocal, uint8_t StOther, |
