diff options
Diffstat (limited to 'gold/symtab.cc')
| -rw-r--r-- | gold/symtab.cc | 99 |
1 files changed, 65 insertions, 34 deletions
diff --git a/gold/symtab.cc b/gold/symtab.cc index a29e6ad..f46d8de 100644 --- a/gold/symtab.cc +++ b/gold/symtab.cc @@ -38,7 +38,7 @@ #include "target.h" #include "workqueue.h" #include "symtab.h" -#include "demangle.h" // needed for --dynamic-list-cpp-new +#include "script.h" #include "plugin.h" namespace gold @@ -530,7 +530,7 @@ Symbol_table::is_section_folded(Object* obj, unsigned int shndx) const // work list to avoid gc'ing them. void -Symbol_table::gc_mark_undef_symbols() +Symbol_table::gc_mark_undef_symbols(Layout* layout) { for (options::String_set::const_iterator p = parameters->options().undefined_begin(); @@ -553,6 +553,27 @@ Symbol_table::gc_mark_undef_symbols() } } } + + for (Script_options::referenced_const_iterator p = + layout->script_options()->referenced_begin(); + p != layout->script_options()->referenced_end(); + ++p) + { + Symbol* sym = this->lookup(p->c_str()); + gold_assert(sym != NULL); + if (sym->source() == Symbol::FROM_OBJECT + && !sym->object()->is_dynamic()) + { + Relobj* obj = static_cast<Relobj*>(sym->object()); + bool is_ordinary; + unsigned int shndx = sym->shndx(&is_ordinary); + if (is_ordinary) + { + gold_assert(this->gc_ != NULL); + this->gc_->worklist().push(Section_id(obj, shndx)); + } + } + } } void @@ -2163,14 +2184,15 @@ Symbol_table::get_copy_source(const Symbol* sym) const // Add any undefined symbols named on the command line. void -Symbol_table::add_undefined_symbols_from_command_line() +Symbol_table::add_undefined_symbols_from_command_line(Layout* layout) { - if (parameters->options().any_undefined()) + if (parameters->options().any_undefined() + || layout->script_options()->any_unreferenced()) { if (parameters->target().get_size() == 32) { #if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_32_BIG) - this->do_add_undefined_symbols_from_command_line<32>(); + this->do_add_undefined_symbols_from_command_line<32>(layout); #else gold_unreachable(); #endif @@ -2178,7 +2200,7 @@ Symbol_table::add_undefined_symbols_from_command_line() else if (parameters->target().get_size() == 64) { #if defined(HAVE_TARGET_64_LITTLE) || defined(HAVE_TARGET_64_BIG) - this->do_add_undefined_symbols_from_command_line<64>(); + this->do_add_undefined_symbols_from_command_line<64>(layout); #else gold_unreachable(); #endif @@ -2190,50 +2212,59 @@ Symbol_table::add_undefined_symbols_from_command_line() template<int size> void -Symbol_table::do_add_undefined_symbols_from_command_line() +Symbol_table::do_add_undefined_symbols_from_command_line(Layout* layout) { for (options::String_set::const_iterator p = parameters->options().undefined_begin(); p != parameters->options().undefined_end(); ++p) - { - const char* name = p->c_str(); + this->add_undefined_symbol_from_command_line<size>(p->c_str()); - if (this->lookup(name) != NULL) - continue; + for (Script_options::referenced_const_iterator p = + layout->script_options()->referenced_begin(); + p != layout->script_options()->referenced_end(); + ++p) + this->add_undefined_symbol_from_command_line<size>(p->c_str()); +} + +template<int size> +void +Symbol_table::add_undefined_symbol_from_command_line(const char* name) +{ + if (this->lookup(name) != NULL) + return; - const char* version = NULL; + const char* version = NULL; - Sized_symbol<size>* sym; - Sized_symbol<size>* oldsym; - bool resolve_oldsym; - if (parameters->target().is_big_endian()) - { + Sized_symbol<size>* sym; + Sized_symbol<size>* oldsym; + bool resolve_oldsym; + if (parameters->target().is_big_endian()) + { #if defined(HAVE_TARGET_32_BIG) || defined(HAVE_TARGET_64_BIG) - sym = this->define_special_symbol<size, true>(&name, &version, - false, &oldsym, - &resolve_oldsym); + sym = this->define_special_symbol<size, true>(&name, &version, + false, &oldsym, + &resolve_oldsym); #else - gold_unreachable(); + gold_unreachable(); #endif - } - else - { + } + else + { #if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_64_LITTLE) - sym = this->define_special_symbol<size, false>(&name, &version, - false, &oldsym, - &resolve_oldsym); + sym = this->define_special_symbol<size, false>(&name, &version, + false, &oldsym, + &resolve_oldsym); #else - gold_unreachable(); + gold_unreachable(); #endif - } + } - gold_assert(oldsym == NULL); + gold_assert(oldsym == NULL); - sym->init_undefined(name, version, elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL, - elfcpp::STV_DEFAULT, 0); - ++this->saw_undefined_; - } + sym->init_undefined(name, version, elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL, + elfcpp::STV_DEFAULT, 0); + ++this->saw_undefined_; } // Set the dynamic symbol indexes. INDEX is the index of the first |