diff options
Diffstat (limited to 'gold/symtab.cc')
| -rw-r--r-- | gold/symtab.cc | 48 |
1 files changed, 39 insertions, 9 deletions
diff --git a/gold/symtab.cc b/gold/symtab.cc index 7ebcd6b..d1f71e0 100644 --- a/gold/symtab.cc +++ b/gold/symtab.cc @@ -1761,6 +1761,7 @@ template<int size, bool big_endian> Sized_symbol<size>* Symbol_table::define_special_symbol(const char** pname, const char** pversion, bool only_if_ref, + elfcpp::STV visibility, Sized_symbol<size>** poldsym, bool* resolve_oldsym, bool is_forced_local) { @@ -1799,8 +1800,21 @@ Symbol_table::define_special_symbol(const char** pname, const char** pversion, oldsym = this->lookup(*pname, *pversion); if (oldsym == NULL && is_default_version) oldsym = this->lookup(*pname, NULL); - if (oldsym == NULL || !oldsym->is_undefined()) + if (oldsym == NULL) return NULL; + if (!oldsym->is_undefined()) + { + // Skip if the old definition is from a regular object. + if (!oldsym->is_from_dynobj()) + return NULL; + + // If the symbol has hidden or internal visibility, ignore + // definition and reference from a dynamic object. + if ((visibility == elfcpp::STV_HIDDEN + || visibility == elfcpp::STV_INTERNAL) + && !oldsym->in_reg()) + return NULL; + } *pname = oldsym->name(); if (is_default_version) @@ -1975,7 +1989,9 @@ Symbol_table::do_define_in_output_data( { #if defined(HAVE_TARGET_32_BIG) || defined(HAVE_TARGET_64_BIG) sym = this->define_special_symbol<size, true>(&name, &version, - only_if_ref, &oldsym, + only_if_ref, + visibility, + &oldsym, &resolve_oldsym, is_forced_local); #else @@ -1986,7 +2002,9 @@ Symbol_table::do_define_in_output_data( { #if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_64_LITTLE) sym = this->define_special_symbol<size, false>(&name, &version, - only_if_ref, &oldsym, + only_if_ref, + visibility, + &oldsym, &resolve_oldsym, is_forced_local); #else @@ -2094,7 +2112,9 @@ Symbol_table::do_define_in_output_segment( { #if defined(HAVE_TARGET_32_BIG) || defined(HAVE_TARGET_64_BIG) sym = this->define_special_symbol<size, true>(&name, &version, - only_if_ref, &oldsym, + only_if_ref, + visibility, + &oldsym, &resolve_oldsym, is_forced_local); #else @@ -2105,7 +2125,9 @@ Symbol_table::do_define_in_output_segment( { #if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_64_LITTLE) sym = this->define_special_symbol<size, false>(&name, &version, - only_if_ref, &oldsym, + only_if_ref, + visibility, + &oldsym, &resolve_oldsym, is_forced_local); #else @@ -2211,7 +2233,9 @@ Symbol_table::do_define_as_constant( { #if defined(HAVE_TARGET_32_BIG) || defined(HAVE_TARGET_64_BIG) sym = this->define_special_symbol<size, true>(&name, &version, - only_if_ref, &oldsym, + only_if_ref, + visibility, + &oldsym, &resolve_oldsym, is_forced_local); #else @@ -2222,7 +2246,9 @@ Symbol_table::do_define_as_constant( { #if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_64_LITTLE) sym = this->define_special_symbol<size, false>(&name, &version, - only_if_ref, &oldsym, + only_if_ref, + visibility, + &oldsym, &resolve_oldsym, is_forced_local); #else @@ -2449,7 +2475,9 @@ Symbol_table::add_undefined_symbol_from_command_line(const char* name) { #if defined(HAVE_TARGET_32_BIG) || defined(HAVE_TARGET_64_BIG) sym = this->define_special_symbol<size, true>(&name, &version, - false, &oldsym, + false, + elfcpp::STV_DEFAULT, + &oldsym, &resolve_oldsym, false); #else @@ -2460,7 +2488,9 @@ Symbol_table::add_undefined_symbol_from_command_line(const char* name) { #if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_64_LITTLE) sym = this->define_special_symbol<size, false>(&name, &version, - false, &oldsym, + false, + elfcpp::STV_DEFAULT, + &oldsym, &resolve_oldsym, false); #else |