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authorIan Lance Taylor <ian@airs.com>2008-04-19 18:30:58 +0000
committerIan Lance Taylor <ian@airs.com>2008-04-19 18:30:58 +0000
commitd491d34e930046f820def9d3d67a2491df8a2198 (patch)
tree7e955be0ab4ec83f4711c309a6dcf130f341da99 /gold/layout.h
parent8e91f0232ca9c286299092c896288b8657c9311b (diff)
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* object.cc (Xindex::initialize_symtab_xindex): New function.
(Xindex::read_symtab_xindex): New function. (Xindex::sym_xindex_to_shndx): New function. (Sized_relobj::find_symtab): Pick up SHT_SYMTAB_SHNDX section if available. (Sized_relobj::do_initialize_xindex): New function. (Sized_relobj::do_read_symbols): Adjust section links. (Sized_relobj::symbol_section_and_value): Add is_ordinary parameter. Change all callers. (Sized_relobj::include_section_group): Adjust section links and symbol section indexes. (Sized_relobj::do_layout): Adjust section links. (Sized_relobj::do_count_local_symbols): Adjust section links and symbol section indexes. (Sized_relobj::do_finalize_local_symbols): Distinguish between ordinary and special symbols. (Sized_relobj::write_local_symbols): Add symtab_xindex and dynsym_xindex parameters. Change all callers. Adjust section links. Use SHN_XINDEX when needed. (Sized_relobj::get_symbol_location_info): Adjust section links. Don't get fooled by special symbols. * object.h (class Xindex): Define. (class Object): Add xindex_ parameter. Declare virtual functoin do_initialize_xindex. (Object::adjust_sym_shndx): New function. (Object::set_xindex): New protected function. (class Symbol_value): Add is_ordinary_shndx_ field. (Symbol_value::Symbol_value): Initialize is_ordinary_shndx_. (Symbol_value::value): Assert ordinary section. (Symbol_value::initialize_input_to_output_map): Likewise. (Symbol_value::set_input_shndx): Add is_ordinary parameter. Change all callers. (Symbol_value::input_shndx): Add is_ordinary parameter. Change all callers. (class Sized_relobj): Update declarations. (Sized_relobj::local_symbol_input_shndx): Add is_ordinary parameter. Change all callers. (Sized_relobj::adjust_shndx): New function. * dynobj.cc (Sized_dynobj::Sized_dynobj): Initialize dynsym_shndx_ field. (Sized_dynobj::find_dynsym_sections): Remove pdynsym_shndx parameter. Change all callers. Pick up SHT_DYNSYM_SHNDX section for SHT_DYNSYM section if available. Set dynsym_shndx_ field. (Sized_dynobj::read_dynsym_section): Adjust section links. (Sized_dynobj::read_dynamic): Likewise. (Sized_dynobj::do_read_symbols): Use dynsym_shndx_ field. Adjust section links. (Sized_dynobj::do_initialize_xindex): New function. * dynobj.h (class Sized_dynobj): Add dynsym_shndx_ field. Declare do_initialize_xindex. (Sized_dynobj::adjust_shndx): New function. * layout.cc (Layout::Layout): Initialize symtab_xindex_ and dynsym_xindex_ fields. (Layout::finalize): Add a call to set_section_indexes before creating the symtab sections. (Layout::set_section_indexes): Don't do anything if the section already has a section index. (Layout::create_symtab_sections): Add shnum parameter. Change caller. Create .symtab_shndx section if needed. (Layout::create_shdrs): Add shstrtab_section parameter. Change caller. (Layout::allocated_output_section_count): New function. (Layout::create_dynamic_symtab): Create .dynsym_shndx section if needed. * layout.h (class Layout): Add symtab_xindex_ and dynsym_xindex_ fields. Update declarations. (Layout::symtab_xindex): New function. (Layout::dynsym_xindex): New function. (class Write_symbols_task): Add layout_ field. (Write_symbols_task::Write_symbols_task): Add layout parameter. Change caller. * output.cc (Output_section_headers::Output_section_headers): Add shstrtab_section parameter. Change all callers. (Output_section_headers::do_sized_write): Store overflow values for section count and section string table section index in section header zero. (Output_file_header::do_sized_write): Check for overflow of section count and section string table section index. (Output_symtab_xindex::do_write): New function. (Output_symtab_xindex::endian_do_write): New function. * output.h (class Output_section_headers): Add shstrtab_section_. Update declarations. (class Output_symtab_xindex): Define. (Output_section::has_out_shndx): New function. * symtab.cc (Symbol::init_fields): Initialize is_ordinary_shndx_ field. (Symbol::init_base): Add st_shndx and is_ordinary parameters. Change all callers. (Sized_symbol::init): Likewise. (Symbol::output_section): Check for ordinary symbol. (Symbol_table::add_from_object): Remove orig_sym parameter. Add st_shndx, is_ordinary, and orig_st_shndx parameters. Change all callers. (Symbol_table::add_from_relobj): Add symndx_offset parameter. Change all callers. Simplify handling of symbols from sections not included in the link. (Symbol_table::add_from_dynobj): Handle ordinary symbol distinction. (Weak_alias_sorter::operator()): Assert that symbols are ordinary. (Symbol_table::sized_finalize_symbol): Handle ordinary symbol distinction. (Symbol_table::write_globals): Add symtab_xindex and dynsym_xindex parameters. Change all callers. (Symbol_table::sized_write_globals): Likewise. Handle ordinary symbol distinction. Use SHN_XINDEX when needed. (Symbol_table::write_section_symbol): Add symtab_xindex parameter. Change all callers. (Symbol_table::sized_write_section_symbol): Likewise. Use SHN_XINDEX when needed. * symtab.h (class Symbol): Add is_ordinary_shndx_ field. Update declarations. (Symbol::shndx): Add is_ordinary parameter. Change all callers. (Symbol::is_defined): Check is_ordinary. (Symbol::is_undefined, Symbol::is_weak_undefined): Likewise. (Symbol::is_absolute, Symbol::is_common): Likewise. (class Sized_symbol): Update declarations. (class Symbol_table): Update declarations. * resolve.cc (Symbol::override_base): Add st_shndx and is_ordinary parameters. Change all callers. (Sized_symbol::override): Likewise. (Symbol_table::override): Likewise. (symbol_to_bits): Add is_ordinary parameter. Change all callers. (Symbol_table::resolve): Remove orig_sym parameter. Add st_shndx, is_ordinary, and orig_st_shndx parameters. Change all callers. * copy-relocs.cc (Copy_relocs::emit_copy_reloc): Require symbol to be in an ordinary section. * dwarf_reader.cc (Sized_dwarf_line_info::symbol_section): Add object and is_ordinary parameters. Change all callers. (Sized_dwarf_line_info::read_relocs): Add object parameter. Change all callers. Don't add undefined or non-ordinary symbols to reloc_map_. (Sized_dwarf_line_info::read_line_mappings): Add object parameter. Change all callers. * dwarf_reader.h (class Sized_dwarf_line_info): Update declarations. * ehframe.cc (Eh_frame::read_fde): Check for ordinary symbol. * reloc.cc (Sized_relobj::do_read_relocs): Adjust section links. (Sized_relobj::relocate_sections): Likewise. * target-reloc.h (scan_relocs): Adjust section symbol index. (scan_relocatable_relocs): Likewise. * i386.cc (Scan::local): Check for ordinary symbols. * sparc.cc (Scan::local): Likewise. * x86_64.cc (Scan::local): Likewise. * testsuite/binary_unittest.cc (Sized_binary_test): Update calls to symbol_section_and_value. * testsuite/many_sections_test.cc: New file. * testsuite/Makefile.am (BUILT_SOURCES): Define. (check_PROGRAMS): Add many_sections_test. (many_sections_test_SOURCES): Define. (many_sections_test_DEPENDENCIES): Define. (many_sections_test_LDFLAGS): Define. (BUILT_SOURCES): Add many_sections_define.h. (many_sections_define.h): New target. (BUILT_SOURCES): Add many_sections_check.h. (many_sections_check.h): New target. (check_PROGRAMS): Add many_sections_r_test. (many_sections_r_test_SOURCES): Define. (many_sections_r_test_DEPENDENCIES): Define. (many_sections_r_test_LDFLAGS): Define. (many_sections_r_test_LDADD): Define. (many_sections_r_test.o): New target. * testsuite/Makefile.in: Rebuild.
Diffstat (limited to 'gold/layout.h')
-rw-r--r--gold/layout.h34
1 files changed, 29 insertions, 5 deletions
diff --git a/gold/layout.h b/gold/layout.h
index 13fafd6..efa8b61 100644
--- a/gold/layout.h
+++ b/gold/layout.h
@@ -46,6 +46,7 @@ class Output_section_headers;
class Output_segment;
class Output_data;
class Output_data_dynamic;
+class Output_symtab_xindex;
class Eh_frame;
class Target;
@@ -193,6 +194,18 @@ class Layout
dynpool() const
{ return &this->dynpool_; }
+ // Return the symtab_xindex section used to hold large section
+ // indexes for the normal symbol table.
+ Output_symtab_xindex*
+ symtab_xindex() const
+ { return this->symtab_xindex_; }
+
+ // Return the dynsym_xindex section used to hold large section
+ // indexes for the dynamic symbol table.
+ Output_symtab_xindex*
+ dynsym_xindex() const
+ { return this->dynsym_xindex_; }
+
// Return whether a section is a .gnu.linkonce section, given the
// section name.
static inline bool
@@ -407,7 +420,8 @@ class Layout
// Create the output sections for the symbol table.
void
- create_symtab_sections(const Input_objects*, Symbol_table*, off_t*);
+ create_symtab_sections(const Input_objects*, Symbol_table*,
+ unsigned int, off_t*);
// Create the .shstrtab section.
Output_section*
@@ -415,7 +429,7 @@ class Layout
// Create the section header table.
void
- create_shdrs(off_t*);
+ create_shdrs(const Output_section* shstrtab_section, off_t*);
// Create the dynamic symbol table.
void
@@ -470,6 +484,10 @@ class Layout
static const char*
linkonce_output_name(const char* name, size_t* plen);
+ // Return the number of allocated output sections.
+ size_t
+ allocated_output_section_count() const;
+
// Return the output section for NAME, TYPE and FLAGS.
Output_section*
get_output_section(const char* name, Stringpool::Key name_key,
@@ -589,8 +607,12 @@ class Layout
Output_segment* tls_segment_;
// The SHT_SYMTAB output section.
Output_section* symtab_section_;
+ // The SHT_SYMTAB_SHNDX for the regular symbol table if there is one.
+ Output_symtab_xindex* symtab_xindex_;
// The SHT_DYNSYM output section if there is one.
Output_section* dynsym_section_;
+ // The SHT_SYMTAB_SHNDX for the dynamic symbol table if there is one.
+ Output_symtab_xindex* dynsym_xindex_;
// The SHT_DYNAMIC output section if there is one.
Output_section* dynamic_section_;
// The dynamic data which goes into dynamic_section_.
@@ -702,12 +724,13 @@ class Write_data_task : public Task
class Write_symbols_task : public Task
{
public:
- Write_symbols_task(const Symbol_table* symtab,
+ Write_symbols_task(const Layout* layout, const Symbol_table* symtab,
const Input_objects* input_objects,
const Stringpool* sympool, const Stringpool* dynpool,
Output_file* of, Task_token* final_blocker)
- : symtab_(symtab), input_objects_(input_objects), sympool_(sympool),
- dynpool_(dynpool), of_(of), final_blocker_(final_blocker)
+ : layout_(layout), symtab_(symtab), input_objects_(input_objects),
+ sympool_(sympool), dynpool_(dynpool), of_(of),
+ final_blocker_(final_blocker)
{ }
// The standard Task methods.
@@ -726,6 +749,7 @@ class Write_symbols_task : public Task
{ return "Write_symbols_task"; }
private:
+ const Layout* layout_;
const Symbol_table* symtab_;
const Input_objects* input_objects_;
const Stringpool* sympool_;