diff options
Diffstat (limited to 'gold/symtab.h')
| -rw-r--r-- | gold/symtab.h | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/gold/symtab.h b/gold/symtab.h index bd41794..e262cd4 100644 --- a/gold/symtab.h +++ b/gold/symtab.h @@ -405,6 +405,31 @@ class Symbol return this->source_ == FROM_OBJECT && this->shndx() == elfcpp::SHN_UNDEF; } + // Return whether this is a weak undefined symbol. + bool + is_weak_undefined() const + { + return (this->source_ == FROM_OBJECT + && this->binding() == elfcpp::STB_WEAK + && this->shndx() == elfcpp::SHN_UNDEF); + } + + // Return whether this is a strong (i.e., not weak) undefined symbol. + bool + is_strong_undefined() const + { + return (this->source_ == FROM_OBJECT + && this->binding() != elfcpp::STB_WEAK + && this->shndx() == elfcpp::SHN_UNDEF); + } + + // Return whether this is an absolute symbol. + bool + is_absolute() const + { + return this->source_ == FROM_OBJECT && this->shndx() == elfcpp::SHN_ABS; + } + // Return whether this is a common symbol. bool is_common() const @@ -453,7 +478,7 @@ class Symbol return (!parameters->doing_static_link() && this->type() == elfcpp::STT_FUNC && (this->is_from_dynobj() - || this->is_undefined() + || this->is_strong_undefined() || this->is_preemptible())); } @@ -481,6 +506,11 @@ class Symbol if (parameters->doing_static_link()) return false; + // A reference to a weak undefined symbol or to an absolute symbol + // does not need a dynamic relocation. + if (this->is_weak_undefined() || this->is_absolute()) + return false; + // An absolute reference within a position-independent output file // will need a dynamic relocation. if ((flags & ABSOLUTE_REF) |