unsigned int shndx, section_offset_type offset,
section_size_type length,
section_offset_type output_offset) {
- if (this->object_merge_map_ == NULL)
- {
- this->object_merge_map_ = new Object_merge_map();
- }
-
- this->object_merge_map_->add_mapping(output_data, shndx, offset, length,
- output_offset);
+ Object_merge_map* object_merge_map = this->get_or_create_merge_map();
+ object_merge_map->add_mapping(output_data, shndx, offset, length, output_offset);
}
bool
return object_merge_map->get_output_offset(shndx, offset, poutput);
}
-bool
-Relobj::is_merge_section_for(const Output_section_data* output_data,
- unsigned int shndx) const {
+const Output_section_data*
+Relobj::find_merge_section(unsigned int shndx) const {
Object_merge_map* object_merge_map = this->object_merge_map_;
if (object_merge_map == NULL)
- return false;
- return object_merge_map->is_merge_section_for(output_data, shndx);
-
+ return NULL;
+ return object_merge_map->find_merge_section(shndx);
}
// To copy the symbols data read from the file to a local data structure.
layout->incremental_inputs()->set_reloc_count(rindex);
}
+Object_merge_map*
+Relobj::get_or_create_merge_map()
+{
+ if (!this->object_merge_map_)
+ this->object_merge_map_ = new Object_merge_map();
+ return this->object_merge_map_;
+}
+
// Class Sized_relobj.
// Iterate over local symbols, calling a visitor class V for each GOT offset
discarded_eh_frame_shndx_(-1U),
is_deferred_layout_(false),
deferred_layout_(),
- deferred_layout_relocs_(),
- compressed_sections_()
+ deferred_layout_relocs_()
{
this->e_type_ = ehdr.get_e_type();
}
// Return TRUE if this is a section whose contents will be needed in the
// Add_symbols task. This function is only called for sections that have
-// already passed the test in is_compressed_debug_section(), so we know
-// that the section name begins with ".zdebug".
+// already passed the test in is_compressed_debug_section() and the debug
+// section name prefix, ".debug"/".zdebug", has been skipped.
static bool
need_decompressed_section(const char* name)
{
- // Skip over the ".zdebug" and a quick check for the "_".
- name += 7;
if (*name++ != '_')
return false;
unsigned int shnum,
const char* names,
section_size_type names_size,
- Sized_relobj_file<size, big_endian>* obj)
+ Object* obj,
+ bool decompress_if_needed)
{
Compressed_section_map* uncompressed_map = new Compressed_section_map();
const unsigned int shdr_size = elfcpp::Elf_sizes<size>::shdr_size;
}
const char* name = names + shdr.get_sh_name();
- if (is_compressed_debug_section(name))
+ bool is_compressed = ((shdr.get_sh_flags()
+ & elfcpp::SHF_COMPRESSED) != 0);
+ bool is_zcompressed = (!is_compressed
+ && is_compressed_debug_section(name));
+
+ if (is_zcompressed || is_compressed)
{
section_size_type len;
const unsigned char* contents =
obj->section_contents(i, &len, false);
- uint64_t uncompressed_size = get_uncompressed_size(contents, len);
+ uint64_t uncompressed_size;
+ if (is_zcompressed)
+ {
+ // Skip over the ".zdebug" prefix.
+ name += 7;
+ uncompressed_size = get_uncompressed_size(contents, len);
+ }
+ else
+ {
+ // Skip over the ".debug" prefix.
+ name += 6;
+ elfcpp::Chdr<size, big_endian> chdr(contents);
+ uncompressed_size = chdr.get_ch_size();
+ }
Compressed_section_info info;
info.size = convert_to_section_size_type(uncompressed_size);
+ info.flag = shdr.get_sh_flags();
info.contents = NULL;
if (uncompressed_size != -1ULL)
{
unsigned char* uncompressed_data = NULL;
- if (need_decompressed_section(name))
+ if (decompress_if_needed && need_decompressed_section(name))
{
uncompressed_data = new unsigned char[uncompressed_size];
if (decompress_input_section(contents, len,
uncompressed_data,
- uncompressed_size))
+ uncompressed_size,
+ size, big_endian,
+ shdr.get_sh_flags()))
info.contents = uncompressed_data;
else
delete[] uncompressed_data;
if (this->find_eh_frame(pshdrs, names, sd->section_names_size))
this->has_eh_frame_ = true;
- if (memmem(names, sd->section_names_size, ".zdebug_", 8) != NULL)
- this->compressed_sections_
- = build_compressed_section_map(pshdrs, this->shnum(), names,
- sd->section_names_size, this);
+ Compressed_section_map* compressed_sections =
+ build_compressed_section_map<size, big_endian>(
+ pshdrs, this->shnum(), names, sd->section_names_size, this, true);
+ if (compressed_sections != NULL)
+ this->set_compressed_sections(compressed_sections);
+
return (this->has_eh_frame_
|| (!parameters->options().relocatable()
&& parameters->options().gdb_index()
|| shdr.get_sh_type() == elfcpp::SHT_INIT_ARRAY
|| shdr.get_sh_type() == elfcpp::SHT_FINI_ARRAY)
{
- symtab->gc()->worklist().push(Section_id(this, i));
+ symtab->gc()->worklist().push_back(Section_id(this, i));
}
// If the section name XXX can be represented as a C identifier
// it cannot be discarded if there are references to
// Loop over the local symbols.
const Output_sections& out_sections(this->output_sections());
+ std::vector<Address>& out_section_offsets(this->section_offsets());
unsigned int shnum = this->shnum();
unsigned int count = 0;
unsigned int dyncount = 0;
bool strip_all = parameters->options().strip_all();
bool discard_all = parameters->options().discard_all();
bool discard_locals = parameters->options().discard_locals();
+ bool discard_sec_merge = parameters->options().discard_sec_merge();
for (unsigned int i = 1; i < loccount; ++i, psyms += sym_size)
{
elfcpp::Sym<size, big_endian> sym(psyms);
continue;
}
+ // By default, discard temporary local symbols in merge sections.
// If --discard-locals option is used, discard all temporary local
// symbols. These symbols start with system-specific local label
// prefixes, typically .L for ELF system. We want to be compatible
// - the symbol has a name.
//
// We do not discard a symbol if it needs a dynamic symbol entry.
- if (discard_locals
+ if ((discard_locals
+ || (discard_sec_merge
+ && is_ordinary
+ && out_section_offsets[shndx] == invalid_address))
&& sym.get_st_type() != elfcpp::STT_FILE
&& !lv.needs_output_dynsym_entry()
&& lv.may_be_discarded_from_output_symtab()
// to the size. Set *IS_NEW to true if the contents need to be freed
// by the caller.
-template<int size, bool big_endian>
const unsigned char*
-Sized_relobj_file<size, big_endian>::do_decompressed_section_contents(
+Object::decompressed_section_contents(
unsigned int shndx,
section_size_type* plen,
bool* is_new)
if (!decompress_input_section(buffer,
buffer_size,
uncompressed_data,
- uncompressed_size))
+ uncompressed_size,
+ elfsize(),
+ is_big_endian(),
+ p->second.flag))
this->error(_("could not decompress section %s"),
this->do_section_name(shndx).c_str());
// Discard any buffers of uncompressed sections. This is done
// at the end of the Add_symbols task.
-template<int size, bool big_endian>
void
-Sized_relobj_file<size, big_endian>::do_discard_decompressed_sections()
+Object::discard_decompressed_sections()
{
if (this->compressed_sections_ == NULL)
return;
Dynobj* dynobj = static_cast<Dynobj*>(obj);
const char* soname = dynobj->soname();
- std::pair<Unordered_set<std::string>::iterator, bool> ins =
- this->sonames_.insert(soname);
+ Unordered_map<std::string, Object*>::value_type val(soname, obj);
+ std::pair<Unordered_map<std::string, Object*>::iterator, bool> ins =
+ this->sonames_.insert(val);
if (!ins.second)
{
// We have already seen a dynamic object with this soname.
+ // If any instances of this object on the command line have
+ // the --no-as-needed flag, make sure the one we keep is
+ // marked so.
+ if (!obj->as_needed())
+ {
+ gold_assert(ins.first->second != NULL);
+ ins.first->second->clear_as_needed();
+ }
return false;
}
projects / deliverable / binutils-gdb.git / blobdiff