diff options
Diffstat (limited to 'gold/symtab.cc')
| -rw-r--r-- | gold/symtab.cc | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/gold/symtab.cc b/gold/symtab.cc index c2de3bc..90ddfae 100644 --- a/gold/symtab.cc +++ b/gold/symtab.cc @@ -37,6 +37,7 @@ #include "target.h" #include "workqueue.h" #include "symtab.h" +#include "demangle.h" // needed for --dynamic-list-cpp-new #include "plugin.h" namespace gold @@ -288,6 +289,9 @@ Sized_symbol<size>::allocate_common(Output_data* od, Value_type value) this->value_ = value; } +// The ""'s around str ensure str is a string literal, so sizeof works. +#define strprefix(var, str) (strncmp(var, str, sizeof("" str "") - 1) == 0) + // Return true if this symbol should be added to the dynamic symbol // table. @@ -302,6 +306,48 @@ Symbol::should_add_dynsym_entry() const if (this->is_forced_local()) return false; + // If the symbol was forced dynamic in a --dynamic-list file, add it. + if (parameters->options().in_dynamic_list(this->name())) + return true; + + // If dynamic-list-data was specified, add any STT_OBJECT. + if (parameters->options().dynamic_list_data() + && !this->is_from_dynobj() + && this->type() == elfcpp::STT_OBJECT) + return true; + + // If --dynamic-list-cpp-new was specified, add any new/delete symbol. + // If --dynamic-list-cpp-typeinfo was specified, add any typeinfo symbols. + if ((parameters->options().dynamic_list_cpp_new() + || parameters->options().dynamic_list_cpp_typeinfo()) + && !this->is_from_dynobj()) + { + // TODO(csilvers): We could probably figure out if we're an operator + // new/delete or typeinfo without the need to demangle. + char* demangled_name = cplus_demangle(this->name(), + DMGL_ANSI | DMGL_PARAMS); + if (demangled_name == NULL) + { + // Not a C++ symbol, so it can't satisfy these flags + } + else if (parameters->options().dynamic_list_cpp_new() + && (strprefix(demangled_name, "operator new") + || strprefix(demangled_name, "operator delete"))) + { + free(demangled_name); + return true; + } + else if (parameters->options().dynamic_list_cpp_typeinfo() + && (strprefix(demangled_name, "typeinfo name for") + || strprefix(demangled_name, "typeinfo for"))) + { + free(demangled_name); + return true; + } + else + free(demangled_name); + } + // If exporting all symbols or building a shared library, // and the symbol is defined in a regular object and is // externally visible, we need to add it. |