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binutils-gdb
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* archive.cc (Library_base::should_include_member): Check for 

--export-dynamic-symbol.
	* options.h (class General_options): Add --export-dynamic-symbol.
	* symtab.cc (Symbol::should_add_dynsym_entry): Check for
	--export-dynamic-symbol.
	(Symbol_table::gc_mark_undef_symbols): Likewise.
	(Symbol_table::do_add_undefined_symbols_from_command_line): Likewise.
This commit is contained in:
Cary Coutant 2012-04-17 00:28:41 +00:00
parent f3e8aed339
commit 31821be097
4 changed files with 60 additions and 6 deletions
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10
gold/ChangeLog
View File

@ -1,3 +1,13 @@
2012-04-16 Cary Coutant <ccoutant@google.com>
* archive.cc (Library_base::should_include_member): Check for
--export-dynamic-symbol.
* options.h (class General_options): Add --export-dynamic-symbol.
* symtab.cc (Symbol::should_add_dynsym_entry): Check for
--export-dynamic-symbol.
(Symbol_table::gc_mark_undef_symbols): Likewise.
(Symbol_table::do_add_undefined_symbols_from_command_line): Likewise.
2012-04-12 David S. Miller <davem@davemloft.net>
* sparc.cc (Reloc::wdisp10): New relocation method.

5
gold/archive.cc
View File

@ -104,6 +104,11 @@ Library_base::should_include_member(Symbol_table* symtab, Layout* layout,
*why = "-u ";
*why += sym_name;
}
else if (parameters->options().is_export_dynamic_symbol(sym_name))
{
*why = "--export-dynamic-symbol ";
*why += sym_name;
}
else if (layout->script_options()->is_referenced(sym_name))
{
size_t alc = 100 + strlen(sym_name);

3
gold/options.h
View File

@ -739,6 +739,9 @@ class General_options
N_("Export all dynamic symbols"),
N_("Do not export all dynamic symbols (default)"));
DEFINE_set(export_dynamic_symbol, options::TWO_DASHES, '\0',
N_("Export SYMBOL to dynamic symbol table"), N_("SYMBOL"));
DEFINE_special(EB, options::ONE_DASH, '\0',
N_("Link big-endian objects."), NULL);

48
gold/symtab.cc
View File

@ -363,14 +363,22 @@ Symbol::should_add_dynsym_entry(Symbol_table* symtab) const
return false;
}
// If the symbol was forced dynamic in a --dynamic-list file
// or an --export-dynamic-symbol option, add it.
if (parameters->options().in_dynamic_list(this->name())
|| parameters->options().is_export_dynamic_symbol(this->name()))
{
if (!this->is_forced_local())
return true;
gold_warning(_("Cannot export local symbol '%s'"),
this->demangled_name().c_str());
return false;
}
// If the symbol was forced local in a version script, do not add it.
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()
@ -551,8 +559,8 @@ Symbol_table::is_section_folded(Object* obj, unsigned int shndx) const
&& this->icf_->is_section_folded(obj, shndx));
}
// For symbols that have been listed with -u option, add them to the
// work list to avoid gc'ing them.
// For symbols that have been listed with a -u or --export-dynamic-symbol
// option, add them to the work list to avoid gc'ing them.
void
Symbol_table::gc_mark_undef_symbols(Layout* layout)
@ -579,6 +587,28 @@ Symbol_table::gc_mark_undef_symbols(Layout* layout)
}
}
for (options::String_set::const_iterator p =
parameters->options().export_dynamic_symbol_begin();
p != parameters->options().export_dynamic_symbol_end();
++p)
{
const char* name = p->c_str();
Symbol* sym = this->lookup(name);
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));
}
}
}
for (Script_options::referenced_const_iterator p =
layout->script_options()->referenced_begin();
p != layout->script_options()->referenced_end();
@ -2291,6 +2321,12 @@ Symbol_table::do_add_undefined_symbols_from_command_line(Layout* layout)
++p)
this->add_undefined_symbol_from_command_line<size>(p->c_str());
for (options::String_set::const_iterator p =
parameters->options().export_dynamic_symbol_begin();
p != parameters->options().export_dynamic_symbol_end();
++p)
this->add_undefined_symbol_from_command_line<size>(p->c_str());
for (Script_options::referenced_const_iterator p =
layout->script_options()->referenced_begin();
p != layout->script_options()->referenced_end();