// object.cc -- support for an object file for linking in gold
-// Copyright 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+// Copyright (C) 2006-2014 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
// Struct Read_symbols_data.
-// Destroy any remaining File_view objects.
+// Destroy any remaining File_view objects and buffers of decompressed
+// sections.
Read_symbols_data::~Read_symbols_data()
{
const unsigned char*
Object::section_contents(unsigned int shndx, section_size_type* plen,
bool cache)
-{
- Location loc(this->do_section_contents(shndx));
- *plen = convert_to_section_size_type(loc.data_size);
- if (*plen == 0)
- {
- static const unsigned char empty[1] = { '\0' };
- return empty;
- }
- return this->get_view(loc.file_offset, *plen, true, cache);
-}
+{ return this->do_section_contents(shndx, plen, cache); }
-// Read the section data into SD. This is code common to Sized_relobj
+// Read the section data into SD. This is code common to Sized_relobj_file
// and Sized_dynobj, so we put it into Object.
template<int size, bool big_endian>
// Class Relobj
// To copy the symbols data read from the file to a local data structure.
-// This function is called from do_layout only while doing garbage
+// This function is called from do_layout only while doing garbage
// collection.
void
-Relobj::copy_symbols_data(Symbols_data* gc_sd, Read_symbols_data* sd,
- unsigned int section_header_size)
+Relobj::copy_symbols_data(Symbols_data* gc_sd, Read_symbols_data* sd,
+ unsigned int section_header_size)
{
- gc_sd->section_headers_data =
- new unsigned char[(section_header_size)];
+ gc_sd->section_headers_data =
+ new unsigned char[(section_header_size)];
memcpy(gc_sd->section_headers_data, sd->section_headers->data(),
- section_header_size);
- gc_sd->section_names_data =
- new unsigned char[sd->section_names_size];
+ section_header_size);
+ gc_sd->section_names_data =
+ new unsigned char[sd->section_names_size];
memcpy(gc_sd->section_names_data, sd->section_names->data(),
- sd->section_names_size);
+ sd->section_names_size);
gc_sd->section_names_size = sd->section_names_size;
if (sd->symbols != NULL)
{
- gc_sd->symbols_data =
- new unsigned char[sd->symbols_size];
+ gc_sd->symbols_data =
+ new unsigned char[sd->symbols_size];
memcpy(gc_sd->symbols_data, sd->symbols->data(),
- sd->symbols_size);
+ sd->symbols_size);
}
else
{
if (sd->symbol_names != NULL)
{
gc_sd->symbol_names_data =
- new unsigned char[sd->symbol_names_size];
+ new unsigned char[sd->symbol_names_size];
memcpy(gc_sd->symbol_names_data, sd->symbol_names->data(),
- sd->symbol_names_size);
+ sd->symbol_names_size);
}
else
{
bool
Relobj::is_section_name_included(const char* name)
{
- if (is_prefix_of(".ctors", name)
- || is_prefix_of(".dtors", name)
- || is_prefix_of(".note", name)
- || is_prefix_of(".init", name)
- || is_prefix_of(".fini", name)
- || is_prefix_of(".gcc_except_table", name)
- || is_prefix_of(".jcr", name)
- || is_prefix_of(".preinit_array", name)
- || (is_prefix_of(".text", name)
- && strstr(name, "personality"))
- || (is_prefix_of(".data", name)
- && strstr(name, "personality"))
+ if (is_prefix_of(".ctors", name)
+ || is_prefix_of(".dtors", name)
+ || is_prefix_of(".note", name)
+ || is_prefix_of(".init", name)
+ || is_prefix_of(".fini", name)
+ || is_prefix_of(".gcc_except_table", name)
+ || is_prefix_of(".jcr", name)
+ || is_prefix_of(".preinit_array", name)
+ || (is_prefix_of(".text", name)
+ && strstr(name, "personality"))
+ || (is_prefix_of(".data", name)
+ && strstr(name, "personality"))
+ || (is_prefix_of(".sdata", name)
+ && strstr(name, "personality"))
|| (is_prefix_of(".gnu.linkonce.d", name)
- && strstr(name, "personality")))
+ && strstr(name, "personality"))
+ || (is_prefix_of(".rodata", name)
+ && strstr(name, "nptl_version")))
{
- return true;
+ return true;
}
return false;
}
// Finalize the incremental relocation information. Allocates a block
// of relocation entries for each symbol, and sets the reloc_bases_
-// array to point to the first entry in each block. Returns the next
-// available relocation index.
+// array to point to the first entry in each block. If CLEAR_COUNTS
+// is TRUE, also clear the per-symbol relocation counters.
void
-Relobj::finalize_incremental_relocs(Layout* layout)
+Relobj::finalize_incremental_relocs(Layout* layout, bool clear_counts)
{
unsigned int nsyms = this->get_global_symbols()->size();
this->reloc_bases_ = new unsigned int[nsyms];
{
this->reloc_bases_[i] = rindex;
rindex += this->reloc_counts_[i];
- this->reloc_counts_[i] = 0;
+ if (clear_counts)
+ this->reloc_counts_[i] = 0;
}
layout->incremental_inputs()->set_reloc_count(rindex);
}
// Class Sized_relobj.
+// Iterate over local symbols, calling a visitor class V for each GOT offset
+// associated with a local symbol.
+
+template<int size, bool big_endian>
+void
+Sized_relobj<size, big_endian>::do_for_all_local_got_entries(
+ Got_offset_list::Visitor* v) const
+{
+ unsigned int nsyms = this->local_symbol_count();
+ for (unsigned int i = 0; i < nsyms; i++)
+ {
+ Local_got_offsets::const_iterator p = this->local_got_offsets_.find(i);
+ if (p != this->local_got_offsets_.end())
+ {
+ const Got_offset_list* got_offsets = p->second;
+ got_offsets->for_all_got_offsets(v);
+ }
+ }
+}
+
+// Get the address of an output section.
+
+template<int size, bool big_endian>
+uint64_t
+Sized_relobj<size, big_endian>::do_output_section_address(
+ unsigned int shndx)
+{
+ // If the input file is linked as --just-symbols, the output
+ // section address is the input section address.
+ if (this->just_symbols())
+ return this->section_address(shndx);
+
+ const Output_section* os = this->do_output_section(shndx);
+ gold_assert(os != NULL);
+ return os->address();
+}
+
+// Class Sized_relobj_file.
+
template<int size, bool big_endian>
-Sized_relobj<size, big_endian>::Sized_relobj(
+Sized_relobj_file<size, big_endian>::Sized_relobj_file(
const std::string& name,
Input_file* input_file,
off_t offset,
const elfcpp::Ehdr<size, big_endian>& ehdr)
- : Relobj(name, input_file, offset),
+ : Sized_relobj<size, big_endian>(name, input_file, offset),
elf_file_(this, ehdr),
symtab_shndx_(-1U),
local_symbol_count_(0),
local_symbol_offset_(0),
local_dynsym_offset_(0),
local_values_(),
- local_got_offsets_(),
local_plt_offsets_(),
kept_comdat_sections_(),
has_eh_frame_(false),
discarded_eh_frame_shndx_(-1U),
+ is_deferred_layout_(false),
deferred_layout_(),
deferred_layout_relocs_(),
compressed_sections_()
{
+ this->e_type_ = ehdr.get_e_type();
}
template<int size, bool big_endian>
-Sized_relobj<size, big_endian>::~Sized_relobj()
+Sized_relobj_file<size, big_endian>::~Sized_relobj_file()
{
}
template<int size, bool big_endian>
void
-Sized_relobj<size, big_endian>::do_setup()
+Sized_relobj_file<size, big_endian>::do_setup()
{
const unsigned int shnum = this->elf_file_.shnum();
this->set_shnum(shnum);
template<int size, bool big_endian>
void
-Sized_relobj<size, big_endian>::find_symtab(const unsigned char* pshdrs)
+Sized_relobj_file<size, big_endian>::find_symtab(const unsigned char* pshdrs)
{
const unsigned int shnum = this->shnum();
this->symtab_shndx_ = 0;
template<int size, bool big_endian>
Xindex*
-Sized_relobj<size, big_endian>::do_initialize_xindex()
+Sized_relobj_file<size, big_endian>::do_initialize_xindex()
{
gold_assert(this->symtab_shndx_ != -1U);
Xindex* xindex = new Xindex(this->elf_file_.large_shndx_offset());
template<int size, bool big_endian>
bool
-Sized_relobj<size, big_endian>::check_eh_frame_flags(
+Sized_relobj_file<size, big_endian>::check_eh_frame_flags(
const elfcpp::Shdr<size, big_endian>* shdr) const
{
- return (shdr->get_sh_type() == elfcpp::SHT_PROGBITS
+ elfcpp::Elf_Word sh_type = shdr->get_sh_type();
+ return ((sh_type == elfcpp::SHT_PROGBITS
+ || sh_type == elfcpp::SHT_X86_64_UNWIND)
&& (shdr->get_sh_flags() & elfcpp::SHF_ALLOC) != 0);
}
+// Find the section header with the given name.
+
+template<int size, bool big_endian>
+const unsigned char*
+Object::find_shdr(
+ const unsigned char* pshdrs,
+ const char* name,
+ const char* names,
+ section_size_type names_size,
+ const unsigned char* hdr) const
+{
+ const int shdr_size = elfcpp::Elf_sizes<size>::shdr_size;
+ const unsigned int shnum = this->shnum();
+ const unsigned char* hdr_end = pshdrs + shdr_size * shnum;
+ size_t sh_name = 0;
+
+ while (1)
+ {
+ if (hdr)
+ {
+ // We found HDR last time we were called, continue looking.
+ typename elfcpp::Shdr<size, big_endian> shdr(hdr);
+ sh_name = shdr.get_sh_name();
+ }
+ else
+ {
+ // Look for the next occurrence of NAME in NAMES.
+ // The fact that .shstrtab produced by current GNU tools is
+ // string merged means we shouldn't have both .not.foo and
+ // .foo in .shstrtab, and multiple .foo sections should all
+ // have the same sh_name. However, this is not guaranteed
+ // by the ELF spec and not all ELF object file producers may
+ // be so clever.
+ size_t len = strlen(name) + 1;
+ const char *p = sh_name ? names + sh_name + len : names;
+ p = reinterpret_cast<const char*>(memmem(p, names_size - (p - names),
+ name, len));
+ if (p == NULL)
+ return NULL;
+ sh_name = p - names;
+ hdr = pshdrs;
+ if (sh_name == 0)
+ return hdr;
+ }
+
+ hdr += shdr_size;
+ while (hdr < hdr_end)
+ {
+ typename elfcpp::Shdr<size, big_endian> shdr(hdr);
+ if (shdr.get_sh_name() == sh_name)
+ return hdr;
+ hdr += shdr_size;
+ }
+ hdr = NULL;
+ if (sh_name == 0)
+ return hdr;
+ }
+}
+
// Return whether there is a GNU .eh_frame section, given the section
// headers and the section names.
template<int size, bool big_endian>
bool
-Sized_relobj<size, big_endian>::find_eh_frame(
+Sized_relobj_file<size, big_endian>::find_eh_frame(
const unsigned char* pshdrs,
const char* names,
section_size_type names_size) const
{
- const unsigned int shnum = this->shnum();
- const unsigned char* p = pshdrs + This::shdr_size;
- for (unsigned int i = 1; i < shnum; ++i, p += This::shdr_size)
+ const unsigned char* s = NULL;
+
+ while (1)
{
- typename This::Shdr shdr(p);
+ s = this->template find_shdr<size, big_endian>(pshdrs, ".eh_frame",
+ names, names_size, s);
+ if (s == NULL)
+ return false;
+
+ typename This::Shdr shdr(s);
if (this->check_eh_frame_flags(&shdr))
- {
- if (shdr.get_sh_name() >= names_size)
- {
- this->error(_("bad section name offset for section %u: %lu"),
- i, static_cast<unsigned long>(shdr.get_sh_name()));
- continue;
- }
+ return true;
+ }
+}
- const char* name = names + shdr.get_sh_name();
- if (strcmp(name, ".eh_frame") == 0)
- return true;
- }
+// 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".
+
+static bool
+need_decompressed_section(const char* name)
+{
+ // Skip over the ".zdebug" and a quick check for the "_".
+ name += 7;
+ if (*name++ != '_')
+ return false;
+
+#ifdef ENABLE_THREADS
+ // Decompressing these sections now will help only if we're
+ // multithreaded.
+ if (parameters->options().threads())
+ {
+ // We will need .zdebug_str if this is not an incremental link
+ // (i.e., we are processing string merge sections) or if we need
+ // to build a gdb index.
+ if ((!parameters->incremental() || parameters->options().gdb_index())
+ && strcmp(name, "str") == 0)
+ return true;
+
+ // We will need these other sections when building a gdb index.
+ if (parameters->options().gdb_index()
+ && (strcmp(name, "info") == 0
+ || strcmp(name, "types") == 0
+ || strcmp(name, "pubnames") == 0
+ || strcmp(name, "pubtypes") == 0
+ || strcmp(name, "ranges") == 0
+ || strcmp(name, "abbrev") == 0))
+ return true;
}
+#endif
+
+ // Even when single-threaded, we will need .zdebug_str if this is
+ // not an incremental link and we are building a gdb index.
+ // Otherwise, we would decompress the section twice: once for
+ // string merge processing, and once for building the gdb index.
+ if (!parameters->incremental()
+ && parameters->options().gdb_index()
+ && strcmp(name, "str") == 0)
+ return true;
+
return false;
}
// Build a table for any compressed debug sections, mapping each section index
-// to the uncompressed size.
+// to the uncompressed size and (if needed) the decompressed contents.
template<int size, bool big_endian>
Compressed_section_map*
unsigned int shnum,
const char* names,
section_size_type names_size,
- Sized_relobj<size, big_endian>* obj)
+ Sized_relobj_file<size, big_endian>* obj)
{
- Compressed_section_map* uncompressed_sizes = new Compressed_section_map();
+ Compressed_section_map* uncompressed_map = new Compressed_section_map();
const unsigned int shdr_size = elfcpp::Elf_sizes<size>::shdr_size;
const unsigned char* p = pshdrs + shdr_size;
+
for (unsigned int i = 1; i < shnum; ++i, p += shdr_size)
{
typename elfcpp::Shdr<size, big_endian> shdr(p);
const unsigned char* contents =
obj->section_contents(i, &len, false);
uint64_t uncompressed_size = get_uncompressed_size(contents, len);
+ Compressed_section_info info;
+ info.size = convert_to_section_size_type(uncompressed_size);
+ info.contents = NULL;
if (uncompressed_size != -1ULL)
- (*uncompressed_sizes)[i] =
- convert_to_section_size_type(uncompressed_size);
+ {
+ unsigned char* uncompressed_data = NULL;
+ if (need_decompressed_section(name))
+ {
+ uncompressed_data = new unsigned char[uncompressed_size];
+ if (decompress_input_section(contents, len,
+ uncompressed_data,
+ uncompressed_size))
+ info.contents = uncompressed_data;
+ else
+ delete[] uncompressed_data;
+ }
+ (*uncompressed_map)[i] = info;
+ }
}
}
}
- return uncompressed_sizes;
+ return uncompressed_map;
+}
+
+// Stash away info for a number of special sections.
+// Return true if any of the sections found require local symbols to be read.
+
+template<int size, bool big_endian>
+bool
+Sized_relobj_file<size, big_endian>::do_find_special_sections(
+ Read_symbols_data* sd)
+{
+ const unsigned char* const pshdrs = sd->section_headers->data();
+ const unsigned char* namesu = sd->section_names->data();
+ const char* names = reinterpret_cast<const char*>(namesu);
+
+ 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);
+ return (this->has_eh_frame_
+ || (!parameters->options().relocatable()
+ && parameters->options().gdb_index()
+ && (memmem(names, sd->section_names_size, "debug_info", 12) == 0
+ || memmem(names, sd->section_names_size, "debug_types",
+ 13) == 0)));
}
// Read the sections and symbols from an object file.
template<int size, bool big_endian>
void
-Sized_relobj<size, big_endian>::do_read_symbols(Read_symbols_data* sd)
+Sized_relobj_file<size, big_endian>::do_read_symbols(Read_symbols_data* sd)
+{
+ this->base_read_symbols(sd);
+}
+
+// Read the sections and symbols from an object file. This is common
+// code for all target-specific overrides of do_read_symbols().
+
+template<int size, bool big_endian>
+void
+Sized_relobj_file<size, big_endian>::base_read_symbols(Read_symbols_data* sd)
{
this->read_section_data(&this->elf_file_, sd);
this->find_symtab(pshdrs);
- const unsigned char* namesu = sd->section_names->data();
- const char* names = reinterpret_cast<const char*>(namesu);
- if (memmem(names, sd->section_names_size, ".eh_frame", 10) != NULL)
- {
- 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);
+ bool need_local_symbols = this->do_find_special_sections(sd);
sd->symbols = NULL;
sd->symbols_size = 0;
+ this->symtab_shndx_ * This::shdr_size);
gold_assert(symtabshdr.get_sh_type() == elfcpp::SHT_SYMTAB);
- // If this object has a .eh_frame section, we need all the symbols.
+ // If this object has a .eh_frame section, or if building a .gdb_index
+ // section and there is debug info, we need all the symbols.
// Otherwise we only need the external symbols. While it would be
// simpler to just always read all the symbols, I've seen object
// files with well over 2000 local symbols, which for a 64-bit
off_t extoff = dataoff + locsize;
section_size_type extsize = datasize - locsize;
- off_t readoff = this->has_eh_frame_ ? dataoff : extoff;
- section_size_type readsize = this->has_eh_frame_ ? datasize : extsize;
+ off_t readoff = need_local_symbols ? dataoff : extoff;
+ section_size_type readsize = need_local_symbols ? datasize : extsize;
if (readsize == 0)
{
sd->symbols = fvsymtab;
sd->symbols_size = readsize;
- sd->external_symbols_offset = this->has_eh_frame_ ? locsize : 0;
+ sd->external_symbols_offset = need_local_symbols ? locsize : 0;
sd->symbol_names = fvstrtab;
sd->symbol_names_size =
convert_to_section_size_type(strtabshdr.get_sh_size());
template<int size, bool big_endian>
unsigned int
-Sized_relobj<size, big_endian>::symbol_section_and_value(unsigned int sym,
- Address* value,
- bool* is_ordinary)
+Sized_relobj_file<size, big_endian>::symbol_section_and_value(unsigned int sym,
+ Address* value,
+ bool* is_ordinary)
{
section_size_type symbols_size;
const unsigned char* symbols = this->section_contents(this->symtab_shndx_,
template<int size, bool big_endian>
bool
-Sized_relobj<size, big_endian>::include_section_group(
+Sized_relobj_file<size, big_endian>::include_section_group(
Symbol_table* symtab,
Layout* layout,
unsigned int index,
// just like ordinary sections.
elfcpp::Elf_Word flags = elfcpp::Swap<32, big_endian>::readval(pword);
- // Look up the group signature, which is the name of a symbol. This
- // is a lot of effort to go to to read a string. Why didn't they
- // just have the group signature point into the string table, rather
- // than indirect through a symbol?
+ // Look up the group signature, which is the name of a symbol. ELF
+ // uses a symbol name because some group signatures are long, and
+ // the name is generally already in the symbol table, so it makes
+ // sense to put the long string just once in .strtab rather than in
+ // both .strtab and .shstrtab.
// Get the appropriate symbol table header (this will normally be
// the single SHT_SYMTAB section, but in principle it need not be).
}
typename This::Shdr member_shdr(shdrs + sym_shndx * This::shdr_size);
if (member_shdr.get_sh_name() < section_names_size)
- signature = section_names + member_shdr.get_sh_name();
+ signature = section_names + member_shdr.get_sh_name();
}
// Record this section group in the layout, and see whether we've already
is_comdat = true;
}
+ if (is_comdat && include_group)
+ {
+ Incremental_inputs* incremental_inputs = layout->incremental_inputs();
+ if (incremental_inputs != NULL)
+ incremental_inputs->report_comdat_group(this, signature.c_str());
+ }
+
size_t count = shdr.get_sh_size() / sizeof(elfcpp::Elf_Word);
std::vector<unsigned int> shndxes;
// Check for an earlier section number, since we're going to get
// it wrong--we may have already decided to include the section.
if (shndx < index)
- this->error(_("invalid section group %u refers to earlier section %u"),
- index, shndx);
+ this->error(_("invalid section group %u refers to earlier section %u"),
+ index, shndx);
// Get the name of the member section.
typename This::Shdr member_shdr(shdrs + shndx * This::shdr_size);
if (member_shdr.get_sh_name() >= section_names_size)
- {
- // This is an error, but it will be diagnosed eventually
- // in do_layout, so we don't need to do anything here but
- // ignore it.
- continue;
- }
+ {
+ // This is an error, but it will be diagnosed eventually
+ // in do_layout, so we don't need to do anything here but
+ // ignore it.
+ continue;
+ }
std::string mname(section_names + member_shdr.get_sh_name());
if (include_group)
member_shdr.get_sh_size());
}
else
- {
- (*omit)[shndx] = true;
+ {
+ (*omit)[shndx] = true;
if (is_comdat)
- {
+ {
Relobj* kept_object = kept_section->object();
if (kept_section->is_comdat())
{
this->set_kept_comdat_section(shndx, kept_object,
kept_section->shndx());
}
- }
- }
+ }
+ }
}
if (relocate_group)
template<int size, bool big_endian>
bool
-Sized_relobj<size, big_endian>::include_linkonce_section(
+Sized_relobj_file<size, big_endian>::include_linkonce_section(
Layout* layout,
unsigned int index,
const char* name,
template<int size, bool big_endian>
inline void
-Sized_relobj<size, big_endian>::layout_section(Layout* layout,
- unsigned int shndx,
- const char* name,
- typename This::Shdr& shdr,
- unsigned int reloc_shndx,
- unsigned int reloc_type)
+Sized_relobj_file<size, big_endian>::layout_section(
+ Layout* layout,
+ unsigned int shndx,
+ const char* name,
+ const typename This::Shdr& shdr,
+ unsigned int reloc_shndx,
+ unsigned int reloc_type)
{
off_t offset;
Output_section* os = layout->layout(this, shndx, name, shdr,
this->output_sections()[shndx] = os;
if (offset == -1)
- this->section_offsets_[shndx] = invalid_address;
+ this->section_offsets()[shndx] = invalid_address;
else
- this->section_offsets
_[shndx] = convert_types<Address, off_t>(offset);
+ this->section_offsets
()[shndx] = convert_types<Address, off_t>(offset);
// If this section requires special handling, and if there are
// relocs that apply to it, then we must do the special handling
this->set_relocs_must_follow_section_writes();
}
+// Layout an input .eh_frame section.
+
+template<int size, bool big_endian>
+void
+Sized_relobj_file<size, big_endian>::layout_eh_frame_section(
+ Layout* layout,
+ const unsigned char* symbols_data,
+ section_size_type symbols_size,
+ const unsigned char* symbol_names_data,
+ section_size_type symbol_names_size,
+ unsigned int shndx,
+ const typename This::Shdr& shdr,
+ unsigned int reloc_shndx,
+ unsigned int reloc_type)
+{
+ gold_assert(this->has_eh_frame_);
+
+ off_t offset;
+ Output_section* os = layout->layout_eh_frame(this,
+ symbols_data,
+ symbols_size,
+ symbol_names_data,
+ symbol_names_size,
+ shndx,
+ shdr,
+ reloc_shndx,
+ reloc_type,
+ &offset);
+ this->output_sections()[shndx] = os;
+ if (os == NULL || offset == -1)
+ {
+ // An object can contain at most one section holding exception
+ // frame information.
+ gold_assert(this->discarded_eh_frame_shndx_ == -1U);
+ this->discarded_eh_frame_shndx_ = shndx;
+ this->section_offsets()[shndx] = invalid_address;
+ }
+ else
+ this->section_offsets()[shndx] = convert_types<Address, off_t>(offset);
+
+ // If this section requires special handling, and if there are
+ // relocs that aply to it, then we must do the special handling
+ // before we apply the relocs.
+ if (os != NULL && offset == -1 && reloc_shndx != 0)
+ this->set_relocs_must_follow_section_writes();
+}
+
// Lay out the input sections. We walk through the sections and check
// whether they should be included in the link. If they should, we
// pass them to the Layout object, which will return an output section
-// and an offset.
-// During garbage collection (--gc-sections) and identical code folding
-// (--icf), this function is called twice. When it is called the first
-// time, it is for setting up some sections as roots to a work-list for
-// --gc-sections and to do comdat processing. Actual layout happens the
-// second time around after all the relevant sections have been determined.
-// The first time, is_worklist_ready or is_icf_ready is false. It is then
-// set to true after the garbage collection worklist or identical code
-// folding is processed and the relevant sections to be kept are
-// determined. Then, this function is called again to layout the sections.
+// and an offset.
+// This function is called twice sometimes, two passes, when mapping
+// of input sections to output sections must be delayed.
+// This is true for the following :
+// * Garbage collection (--gc-sections): Some input sections will be
+// discarded and hence the assignment must wait until the second pass.
+// In the first pass, it is for setting up some sections as roots to
+// a work-list for --gc-sections and to do comdat processing.
+// * Identical Code Folding (--icf=<safe,all>): Some input sections
+// will be folded and hence the assignment must wait.
+// * Using plugins to map some sections to unique segments: Mapping
+// some sections to unique segments requires mapping them to unique
+// output sections too. This can be done via plugins now and this
+// information is not available in the first pass.
template<int size, bool big_endian>
void
-Sized_relobj<size, big_endian>::do_layout(Symbol_table* symtab,
- Layout* layout,
- Read_symbols_data* sd)
+Sized_relobj_file<size, big_endian>::do_layout(Symbol_table* symtab,
+ Layout* layout,
+ Read_symbols_data* sd)
{
const unsigned int shnum = this->shnum();
- bool is_gc_pass_one = ((parameters->options().gc_sections()
- && !symtab->gc()->is_worklist_ready())
- || (parameters->options().icf_enabled()
- && !symtab->icf()->is_icf_ready()));
-
- bool is_gc_pass_two = ((parameters->options().gc_sections()
- && symtab->gc()->is_worklist_ready())
- || (parameters->options().icf_enabled()
- && symtab->icf()->is_icf_ready()));
-
- bool is_gc_or_icf = (parameters->options().gc_sections()
- || parameters->options().icf_enabled());
-
- // Both is_gc_pass_one and is_gc_pass_two should not be true.
- gold_assert(!(is_gc_pass_one && is_gc_pass_two));
+ /* Should this function be called twice? */
+ bool is_two_pass = (parameters->options().gc_sections()
+ || parameters->options().icf_enabled()
+ || layout->is_unique_segment_for_sections_specified());
+
+ /* Only one of is_pass_one and is_pass_two is true. Both are false when
+ a two-pass approach is not needed. */
+ bool is_pass_one = false;
+ bool is_pass_two = false;
+
+ Symbols_data* gc_sd = NULL;
+
+ /* Check if do_layout needs to be two-pass. If so, find out which pass
+ should happen. In the first pass, the data in sd is saved to be used
+ later in the second pass. */
+ if (is_two_pass)
+ {
+ gc_sd = this->get_symbols_data();
+ if (gc_sd == NULL)
+ {
+ gold_assert(sd != NULL);
+ is_pass_one = true;
+ }
+ else
+ {
+ if (parameters->options().gc_sections())
+ gold_assert(symtab->gc()->is_worklist_ready());
+ if (parameters->options().icf_enabled())
+ gold_assert(symtab->icf()->is_icf_ready());
+ is_pass_two = true;
+ }
+ }
+
if (shnum == 0)
return;
- Symbols_data* gc_sd = NULL;
- if (is_gc_pass_one)
+
+ if (is_pass_one)
{
- // During garbage collection save the symbols data to use it when
- // re-entering this function.
+ // During garbage collection save the symbols data to use it when
+ // re-entering this function.
gc_sd = new Symbols_data;
this->copy_symbols_data(gc_sd, sd, This::shdr_size * shnum);
this->set_symbols_data(gc_sd);
}
- else if (is_gc_pass_two)
- {
- gc_sd = this->get_symbols_data();
- }
const unsigned char* section_headers_data = NULL;
section_size_type section_names_size;
const unsigned char* symbols_data = NULL;
section_size_type symbols_size;
- section_offset_type external_symbols_offset;
const unsigned char* symbol_names_data = NULL;
section_size_type symbol_names_size;
-
- if (is_gc_or_icf)
+
+ if (is_two_pass)
{
section_headers_data = gc_sd->section_headers_data;
section_names_size = gc_sd->section_names_size;
symbols_data = gc_sd->symbols_data;
symbols_size = gc_sd->symbols_size;
- external_symbols_offset = gc_sd->external_symbols_offset;
symbol_names_data = gc_sd->symbol_names_data;
symbol_names_size = gc_sd->symbol_names_size;
}
section_headers_data = sd->section_headers->data();
section_names_size = sd->section_names_size;
if (sd->symbols != NULL)
- symbols_data = sd->symbols->data();
+ symbols_data = sd->symbols->data();
symbols_size = sd->symbols_size;
- external_symbols_offset = sd->external_symbols_offset;
if (sd->symbol_names != NULL)
- symbol_names_data = sd->symbol_names->data();
+ symbol_names_data = sd->symbol_names->data();
symbol_names_size = sd->symbol_names_size;
}
const unsigned char* pshdrs;
// Get the section names.
- const unsigned char* pnamesu = (is_gc_or_icf)
- ? gc_sd->section_names_data
- : sd->section_names->data();
+ const unsigned char* pnamesu = (is_two_pass
+ ? gc_sd->section_names_data
+ : sd->section_names->data());
const char* pnames = reinterpret_cast<const char*>(pnamesu);
// Count the number of sections whose layout will be deferred.
if (should_defer_layout && (shdr.get_sh_flags() & elfcpp::SHF_ALLOC))
- ++num_sections_to_defer;
+ ++num_sections_to_defer;
unsigned int sh_type = shdr.get_sh_type();
if (sh_type == elfcpp::SHT_REL || sh_type == elfcpp::SHT_RELA)
}
Output_sections& out_sections(this->output_sections());
- std::vector<Address>& out_section_offsets(this->section_offsets_);
+ std::vector<Address>& out_section_offsets(this->section_offsets());
- if (!is_gc_pass_two)
+ if (!is_pass_two)
{
out_sections.resize(shnum);
out_section_offsets.resize(shnum);
// do here.
if (this->input_file()->just_symbols())
{
- if (!is_gc_pass_two)
- {
- delete sd->section_headers;
- sd->section_headers = NULL;
- delete sd->section_names;
- sd->section_names = NULL;
- }
+ if (!is_pass_two)
+ {
+ delete sd->section_headers;
+ sd->section_headers = NULL;
+ delete sd->section_names;
+ sd->section_names = NULL;
+ }
return;
}
{
parameters->options().plugins()->add_deferred_layout_object(this);
this->deferred_layout_.reserve(num_sections_to_defer);
+ this->is_deferred_layout_ = true;
}
// Whether we've seen a .note.GNU-stack section.
// Keep track of .eh_frame sections.
std::vector<unsigned int> eh_frame_sections;
+ // Keep track of .debug_info and .debug_types sections.
+ std::vector<unsigned int> debug_info_sections;
+ std::vector<unsigned int> debug_types_sections;
+
// Skip the first, dummy, section.
pshdrs = shdrs + This::shdr_size;
for (unsigned int i = 1; i < shnum; ++i, pshdrs += This::shdr_size)
const char* name = pnames + shdr.get_sh_name();
- if (!is_gc_pass_two)
- {
- if (this->handle_gnu_warning_section(name, i, symtab))
- {
- if (!relocatable)
- omit[i] = true;
+ if (!is_pass_two)
+ {
+ if (this->handle_gnu_warning_section(name, i, symtab))
+ {
+ if (!relocatable && !parameters->options().shared())
+ omit[i] = true;
}
- // The .note.GNU-stack section is special. It gives the
- // protection flags that this object file requires for the stack
- // in memory.
- if (strcmp(name, ".note.GNU-stack") == 0)
- {
+ // The .note.GNU-stack section is special. It gives the
+ // protection flags that this object file requires for the stack
+ // in memory.
+ if (strcmp(name, ".note.GNU-stack") == 0)
+ {
seen_gnu_stack = true;
gnu_stack_flags |= shdr.get_sh_flags();
omit[i] = true;
- }
+ }
// The .note.GNU-split-stack section is also special. It
// indicates that the object was compiled with
// -fsplit-stack.
if (this->handle_split_stack_section(name))
{
- if (!parameters->options().relocatable()
- && !parameters->options().shared())
+ if (!relocatable && !parameters->options().shared())
omit[i] = true;
}
omit[i] = true;
}
- bool discard = omit[i];
- if (!discard)
- {
+ bool discard = omit[i];
+ if (!discard)
+ {
if (shdr.get_sh_type() == elfcpp::SHT_GROUP)
- {
- if (!this->include_section_group(symtab, layout, i, name,
- shdrs, pnames,
- section_names_size,
- &omit))
+ {
+ if (!this->include_section_group(symtab, layout, i, name,
+ shdrs, pnames,
+ section_names_size,
+ &omit))
+ discard = true;
+ }
+ else if ((shdr.get_sh_flags() & elfcpp::SHF_GROUP) == 0
+ && Layout::is_linkonce(name))
+ {
+ if (!this->include_linkonce_section(layout, i, name, shdr))
discard = true;
- }
- else if ((shdr.get_sh_flags() & elfcpp::SHF_GROUP) == 0
- && Layout::is_linkonce(name))
- {
- if (!this->include_linkonce_section(layout, i, name, shdr))
- discard = true;
- }
+ }
}
// Add the section to the incremental inputs layout.
Incremental_inputs* incremental_inputs = layout->incremental_inputs();
- if (incremental_inputs != NULL)
- incremental_inputs->report_input_section(this, i,
- discard ? NULL : name,
- shdr.get_sh_size());
+ if (incremental_inputs != NULL
+ && !discard
+ && can_incremental_update(shdr.get_sh_type()))
+ {
+ off_t sh_size = shdr.get_sh_size();
+ section_size_type uncompressed_size;
+ if (this->section_is_compressed(i, &uncompressed_size))
+ sh_size = uncompressed_size;
+ incremental_inputs->report_input_section(this, i, name, sh_size);
+ }
- if (discard)
- {
+ if (discard)
+ {
// Do not include this section in the link.
out_sections[i] = NULL;
- out_section_offsets[i] = invalid_address;
+ out_section_offsets[i] = invalid_address;
continue;
- }
- }
-
- if (is_gc_pass_one && parameters->options().gc_sections())
- {
- if (is_section_name_included(name)
- || shdr.get_sh_type() == elfcpp::SHT_INIT_ARRAY
- || shdr.get_sh_type() == elfcpp::SHT_FINI_ARRAY)
- {
- symtab->gc()->worklist().push(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
- // __start_XXX and __stop_XXX symbols. These need to be
- // specially handled.
- if (is_cident(name))
- {
- symtab->gc()->add_cident_section(name, Section_id(this, i));
- }
- }
+ }
+ }
+
+ if (is_pass_one && parameters->options().gc_sections())
+ {
+ if (this->is_section_name_included(name)
+ || layout->keep_input_section (this, name)
+ || shdr.get_sh_type() == elfcpp::SHT_INIT_ARRAY
+ || shdr.get_sh_type() == elfcpp::SHT_FINI_ARRAY)
+ {
+ symtab->gc()->worklist().push(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
+ // __start_XXX and __stop_XXX symbols. These need to be
+ // specially handled.
+ if (is_cident(name))
+ {
+ symtab->gc()->add_cident_section(name, Section_id(this, i));
+ }
+ }
// When doing a relocatable link we are going to copy input
// reloc sections into the output. We only want to copy the
// determine which sections are being discarded, and discard the
// corresponding information.
if (!relocatable
- && strcmp(name, ".eh_frame") == 0
- && this->check_eh_frame_flags(&shdr))
- {
- if (is_gc_pass_one)
- {
- out_sections[i] = reinterpret_cast<Output_section*>(1);
- out_section_offsets[i] = invalid_address;
- }
- else
- eh_frame_sections.push_back(i);
- continue;
- }
-
- if (is_gc_pass_two && parameters->options().gc_sections())
- {
- // This is executed during the second pass of garbage
- // collection. do_layout has been called before and some
- // sections have been already discarded. Simply ignore
- // such sections this time around.
- if (out_sections[i] == NULL)
- {
- gold_assert(out_section_offsets[i] == invalid_address);
- continue;
- }
- if (((shdr.get_sh_flags() & elfcpp::SHF_ALLOC) != 0)
- && symtab->gc()->is_section_garbage(this, i))
- {
- if (parameters->options().print_gc_sections())
- gold_info(_("%s: removing unused section from '%s'"
- " in file '%s'"),
- program_name, this->section_name(i).c_str(),
- this->name().c_str());
- out_sections[i] = NULL;
- out_section_offsets[i] = invalid_address;
- continue;
- }
- }
-
- if (is_gc_pass_two && parameters->options().icf_enabled())
- {
- if (out_sections[i] == NULL)
- {
- gold_assert(out_section_offsets[i] == invalid_address);
- continue;
- }
- if (((shdr.get_sh_flags() & elfcpp::SHF_ALLOC) != 0)
- && symtab->icf()->is_section_folded(this, i))
- {
- if (parameters->options().print_icf_sections())
- {
- Section_id folded =
- symtab->icf()->get_folded_section(this, i);
- Relobj* folded_obj =
- reinterpret_cast<Relobj*>(folded.first);
- gold_info(_("%s: ICF folding section '%s' in file '%s'"
- "into '%s' in file '%s'"),
- program_name, this->section_name(i).c_str(),
- this->name().c_str(),
- folded_obj->section_name(folded.second).c_str(),
- folded_obj->name().c_str());
- }
- out_sections[i] = NULL;
- out_section_offsets[i] = invalid_address;
- continue;
- }
- }
+ && strcmp(name, ".eh_frame") == 0
+ && this->check_eh_frame_flags(&shdr))
+ {
+ if (is_pass_one)
+ {
+ if (this->is_deferred_layout())
+ out_sections[i] = reinterpret_cast<Output_section*>(2);
+ else
+ out_sections[i] = reinterpret_cast<Output_section*>(1);
+ out_section_offsets[i] = invalid_address;
+ }
+ else if (this->is_deferred_layout())
+ this->deferred_layout_.push_back(Deferred_layout(i, name,
+ pshdrs,
+ reloc_shndx[i],
+ reloc_type[i]));
+ else
+ eh_frame_sections.push_back(i);
+ continue;
+ }
+
+ if (is_pass_two && parameters->options().gc_sections())
+ {
+ // This is executed during the second pass of garbage
+ // collection. do_layout has been called before and some
+ // sections have been already discarded. Simply ignore
+ // such sections this time around.
+ if (out_sections[i] == NULL)
+ {
+ gold_assert(out_section_offsets[i] == invalid_address);
+ continue;
+ }
+ if (((shdr.get_sh_flags() & elfcpp::SHF_ALLOC) != 0)
+ && symtab->gc()->is_section_garbage(this, i))
+ {
+ if (parameters->options().print_gc_sections())
+ gold_info(_("%s: removing unused section from '%s'"
+ " in file '%s'"),
+ program_name, this->section_name(i).c_str(),
+ this->name().c_str());
+ out_sections[i] = NULL;
+ out_section_offsets[i] = invalid_address;
+ continue;
+ }
+ }
+
+ if (is_pass_two && parameters->options().icf_enabled())
+ {
+ if (out_sections[i] == NULL)
+ {
+ gold_assert(out_section_offsets[i] == invalid_address);
+ continue;
+ }
+ if (((shdr.get_sh_flags() & elfcpp::SHF_ALLOC) != 0)
+ && symtab->icf()->is_section_folded(this, i))
+ {
+ if (parameters->options().print_icf_sections())
+ {
+ Section_id folded =
+ symtab->icf()->get_folded_section(this, i);
+ Relobj* folded_obj =
+ reinterpret_cast<Relobj*>(folded.first);
+ gold_info(_("%s: ICF folding section '%s' in file '%s' "
+ "into '%s' in file '%s'"),
+ program_name, this->section_name(i).c_str(),
+ this->name().c_str(),
+ folded_obj->section_name(folded.second).c_str(),
+ folded_obj->name().c_str());
+ }
+ out_sections[i] = NULL;
+ out_section_offsets[i] = invalid_address;
+ continue;
+ }
+ }
// Defer layout here if input files are claimed by plugins. When gc
- // is turned on this function is called twice. For the second call
- // should_defer_layout should be false.
- if (should_defer_layout && (shdr.get_sh_flags() & elfcpp::SHF_ALLOC))
- {
- gold_assert(!is_gc_pass_two);
- this->deferred_layout_.push_back(Deferred_layout(i, name,
- pshdrs,
- reloc_shndx[i],
- reloc_type[i]));
- // Put dummy values here; real values will be supplied by
- // do_layout_deferred_sections.
- out_sections[i] = reinterpret_cast<Output_section*>(2);
- out_section_offsets[i] = invalid_address;
- continue;
- }
+ // is turned on this function is called twice; we only want to do this
+ // on the first pass.
+ if (!is_pass_two
+ && this->is_deferred_layout()
+ && (shdr.get_sh_flags() & elfcpp::SHF_ALLOC))
+ {
+ this->deferred_layout_.push_back(Deferred_layout(i, name,
+ pshdrs,
+ reloc_shndx[i],
+ reloc_type[i]));
+ // Put dummy values here; real values will be supplied by
+ // do_layout_deferred_sections.
+ out_sections[i] = reinterpret_cast<Output_section*>(2);
+ out_section_offsets[i] = invalid_address;
+ continue;
+ }
// During gc_pass_two if a section that was previously deferred is
// found, do not layout the section as layout_deferred_sections will
// do it later from gold.cc.
- if (is_gc_pass_two
- && (out_sections[i] == reinterpret_cast<Output_section*>(2)))
- continue;
-
- if (is_gc_pass_one)
- {
- // This is during garbage collection. The out_sections are
- // assigned in the second call to this function.
- out_sections[i] = reinterpret_cast<Output_section*>(1);
- out_section_offsets[i] = invalid_address;
- }
+ if (is_pass_two
+ && (out_sections[i] == reinterpret_cast<Output_section*>(2)))
+ continue;
+
+ if (is_pass_one)
+ {
+ // This is during garbage collection. The out_sections are
+ // assigned in the second call to this function.
+ out_sections[i] = reinterpret_cast<Output_section*>(1);
+ out_section_offsets[i] = invalid_address;
+ }
else
- {
- // When garbage collection is switched on the actual layout
- // only happens in the second call.
- this->layout_section(layout, i, name, shdr, reloc_shndx[i],
- reloc_type[i]);
- }
+ {
+ // When garbage collection is switched on the actual layout
+ // only happens in the second call.
+ this->layout_section(layout, i, name, shdr, reloc_shndx[i],
+ reloc_type[i]);
+
+ // When generating a .gdb_index section, we do additional
+ // processing of .debug_info and .debug_types sections after all
+ // the other sections for the same reason as above.
+ if (!relocatable
+ && parameters->options().gdb_index()
+ && !(shdr.get_sh_flags() & elfcpp::SHF_ALLOC))
+ {
+ if (strcmp(name, ".debug_info") == 0
+ || strcmp(name, ".zdebug_info") == 0)
+ debug_info_sections.push_back(i);
+ else if (strcmp(name, ".debug_types") == 0
+ || strcmp(name, ".zdebug_types") == 0)
+ debug_types_sections.push_back(i);
+ }
+ }
}
- if (!is_gc_pass_two)
+ if (!is_pass_two)
layout->layout_gnu_stack(seen_gnu_stack, gnu_stack_flags, this);
+ // Handle the .eh_frame sections after the other sections.
+ gold_assert(!is_pass_one || eh_frame_sections.empty());
+ for (std::vector<unsigned int>::const_iterator p = eh_frame_sections.begin();
+ p != eh_frame_sections.end();
+ ++p)
+ {
+ unsigned int i = *p;
+ const unsigned char* pshdr;
+ pshdr = section_headers_data + i * This::shdr_size;
+ typename This::Shdr shdr(pshdr);
+
+ this->layout_eh_frame_section(layout,
+ symbols_data,
+ symbols_size,
+ symbol_names_data,
+ symbol_names_size,
+ i,
+ shdr,
+ reloc_shndx[i],
+ reloc_type[i]);
+ }
+
// When doing a relocatable link handle the reloc sections at the
- // end. Garbage collection and Identical Code Folding is not
- // turned on for relocatable code.
+ // end. Garbage collection and Identical Code Folding is not
+ // turned on for relocatable code.
if (emit_relocs)
this->size_relocatable_relocs();
- gold_assert(!(is_gc_or_icf) || reloc_sections.empty());
+ gold_assert(!is_two_pass || reloc_sections.empty());
for (std::vector<unsigned int>::const_iterator p = reloc_sections.begin();
p != reloc_sections.end();
Output_section* data_section = out_sections[data_shndx];
if (data_section == reinterpret_cast<Output_section*>(2))
- {
- // The layout for the data section was deferred, so we need
- // to defer the relocation section, too.
+ {
+ if (is_pass_two)
+ continue;
+ // The layout for the data section was deferred, so we need
+ // to defer the relocation section, too.
const char* name = pnames + shdr.get_sh_name();
- this->deferred_layout_relocs_.push_back(
- Deferred_layout(i, name, pshdr, 0, elfcpp::SHT_NULL));
+ this->deferred_layout_relocs_.push_back(
+ Deferred_layout(i, name, pshdr, 0, elfcpp::SHT_NULL));
out_sections[i] = reinterpret_cast<Output_section*>(2);
- out_section_offsets[i] = invalid_address;
- continue;
- }
+ out_section_offsets[i] = invalid_address;
+ continue;
+ }
if (data_section == NULL)
{
out_sections[i] = NULL;
- out_section_offsets[i] = invalid_address;
+ out_section_offsets[i] = invalid_address;
continue;
}
out_section_offsets[i] = invalid_address;
}
- // Handle the .eh_frame sections at the end.
- gold_assert(!is_gc_pass_one || eh_frame_sections.empty());
- for (std::vector<unsigned int>::const_iterator p = eh_frame_sections.begin();
- p != eh_frame_sections.end();
+ // When building a .gdb_index section, scan the .debug_info and
+ // .debug_types sections.
+ gold_assert(!is_pass_one
+ || (debug_info_sections.empty() && debug_types_sections.empty()));
+ for (std::vector<unsigned int>::const_iterator p
+ = debug_info_sections.begin();
+ p != debug_info_sections.end();
++p)
{
- gold_assert(this->has_eh_frame_);
- gold_assert(external_symbols_offset != 0);
-
unsigned int i = *p;
- const unsigned char* pshdr;
- pshdr = section_headers_data + i * This::shdr_size;
- typename This::Shdr shdr(pshdr);
-
- off_t offset;
- Output_section* os = layout->layout_eh_frame(this,
- symbols_data,
- symbols_size,
- symbol_names_data,
- symbol_names_size,
- i, shdr,
- reloc_shndx[i],
- reloc_type[i],
- &offset);
- out_sections[i] = os;
- if (os == NULL || offset == -1)
- {
- // An object can contain at most one section holding exception
- // frame information.
- gold_assert(this->discarded_eh_frame_shndx_ == -1U);
- this->discarded_eh_frame_shndx_ = i;
- out_section_offsets[i] = invalid_address;
- }
- else
- out_section_offsets[i] = convert_types<Address, off_t>(offset);
-
- // If this section requires special handling, and if there are
- // relocs that apply to it, then we must do the special handling
- // before we apply the relocs.
- if (os != NULL && offset == -1 && reloc_shndx[i] != 0)
- this->set_relocs_must_follow_section_writes();
+ layout->add_to_gdb_index(false, this, symbols_data, symbols_size,
+ i, reloc_shndx[i], reloc_type[i]);
+ }
+ for (std::vector<unsigned int>::const_iterator p
+ = debug_types_sections.begin();
+ p != debug_types_sections.end();
+ ++p)
+ {
+ unsigned int i = *p;
+ layout->add_to_gdb_index(true, this, symbols_data, symbols_size,
+ i, reloc_shndx[i], reloc_type[i]);
}
- if (is_gc_pass_two)
+ if (is_pass_two)
{
delete[] gc_sd->section_headers_data;
delete[] gc_sd->section_names_data;
template<int size, bool big_endian>
void
-Sized_relobj<size, big_endian>::do_layout_deferred_sections(Layout* layout)
+Sized_relobj_file<size, big_endian>::do_layout_deferred_sections(Layout* layout)
{
typename std::vector<Deferred_layout>::iterator deferred;
++deferred)
{
typename This::Shdr shdr(deferred->shdr_data_);
+
+ if (!parameters->options().relocatable()
+ && deferred->name_ == ".eh_frame"
+ && this->check_eh_frame_flags(&shdr))
+ {
+ // Checking is_section_included is not reliable for
+ // .eh_frame sections, because they do not have an output
+ // section. This is not a problem normally because we call
+ // layout_eh_frame_section unconditionally, but when
+ // deferring sections that is not true. We don't want to
+ // keep all .eh_frame sections because that will cause us to
+ // keep all sections that they refer to, which is the wrong
+ // way around. Instead, the eh_frame code will discard
+ // .eh_frame sections that refer to discarded sections.
+
+ // Reading the symbols again here may be slow.
+ Read_symbols_data sd;
+ this->base_read_symbols(&sd);
+ this->layout_eh_frame_section(layout,
+ sd.symbols->data(),
+ sd.symbols_size,
+ sd.symbol_names->data(),
+ sd.symbol_names_size,
+ deferred->shndx_,
+ shdr,
+ deferred->reloc_shndx_,
+ deferred->reloc_type_);
+ continue;
+ }
+
// If the section is not included, it is because the garbage collector
// decided it is not needed. Avoid reverting that decision.
if (!this->is_section_included(deferred->shndx_))
- continue;
+ continue;
this->layout_section(layout, deferred->shndx_, deferred->name_.c_str(),
- shdr, deferred->reloc_shndx_, deferred->reloc_type_);
+ shdr, deferred->reloc_shndx_,
+ deferred->reloc_type_);
}
this->deferred_layout_.clear();
// Now handle the deferred relocation sections.
Output_sections& out_sections(this->output_sections());
- std::vector<Address>& out_section_offsets(this->section_offsets_);
+ std::vector<Address>& out_section_offsets(this->section_offsets());
for (deferred = this->deferred_layout_relocs_.begin();
deferred != this->deferred_layout_relocs_.end();
if (data_section == NULL)
{
out_sections[shndx] = NULL;
- out_section_offsets[shndx] = invalid_address;
+ out_section_offsets[shndx] = invalid_address;
continue;
}
template<int size, bool big_endian>
void
-Sized_relobj<size, big_endian>::do_add_symbols(Symbol_table* symtab,
- Read_symbols_data* sd,
- Layout*)
+Sized_relobj_file<size, big_endian>::do_add_symbols(Symbol_table* symtab,
+ Read_symbols_data* sd,
+ Layout*)
{
if (sd->symbols == NULL)
{
template<int size, bool big_endian>
Archive::Should_include
-Sized_relobj<size, big_endian>::do_should_include_member(Symbol_table* symtab,
- Layout* layout,
- Read_symbols_data* sd,
- std::string* why)
+Sized_relobj_file<size, big_endian>::do_should_include_member(
+ Symbol_table* symtab,
+ Layout* layout,
+ Read_symbols_data* sd,
+ std::string* why)
{
char* tmpbuf = NULL;
size_t tmpbuflen = 0;
sd->symbols->data() + sd->external_symbols_offset;
const int sym_size = elfcpp::Elf_sizes<size>::sym_size;
size_t symcount = ((sd->symbols_size - sd->external_symbols_offset)
- / sym_size);
+ / sym_size);
const unsigned char* p = syms;
return Archive::SHOULD_INCLUDE_UNKNOWN;
}
+// Iterate over global defined symbols, calling a visitor class V for each.
+
+template<int size, bool big_endian>
+void
+Sized_relobj_file<size, big_endian>::do_for_all_global_symbols(
+ Read_symbols_data* sd,
+ Library_base::Symbol_visitor_base* v)
+{
+ const char* sym_names =
+ reinterpret_cast<const char*>(sd->symbol_names->data());
+ const unsigned char* syms =
+ sd->symbols->data() + sd->external_symbols_offset;
+ const int sym_size = elfcpp::Elf_sizes<size>::sym_size;
+ size_t symcount = ((sd->symbols_size - sd->external_symbols_offset)
+ / sym_size);
+ const unsigned char* p = syms;
+
+ for (size_t i = 0; i < symcount; ++i, p += sym_size)
+ {
+ elfcpp::Sym<size, big_endian> sym(p);
+ if (sym.get_st_shndx() != elfcpp::SHN_UNDEF)
+ v->visit(sym_names + sym.get_st_name());
+ }
+}
+
// Return whether the local symbol SYMNDX has a PLT offset.
template<int size, bool big_endian>
bool
-Sized_relobj<size, big_endian>::local_has_plt_offset(unsigned int symndx) const
+Sized_relobj_file<size, big_endian>::local_has_plt_offset(
+ unsigned int symndx) const
{
typename Local_plt_offsets::const_iterator p =
this->local_plt_offsets_.find(symndx);
template<int size, bool big_endian>
unsigned int
-Sized_relobj<size, big_endian>::local_plt_offset(unsigned int symndx) const
+Sized_relobj_file<size, big_endian>::do_local_plt_offset(
+ unsigned int symndx) const
{
typename Local_plt_offsets::const_iterator p =
this->local_plt_offsets_.find(symndx);
template<int size, bool big_endian>
void
-Sized_relobj<size, big_endian>::set_local_plt_offset(unsigned int symndx,
- unsigned int plt_offset)
+Sized_relobj_file<size, big_endian>::set_local_plt_offset(
+ unsigned int symndx, unsigned int plt_offset)
{
std::pair<typename Local_plt_offsets::iterator, bool> ins =
this->local_plt_offsets_.insert(std::make_pair(symndx, plt_offset));
template<int size, bool big_endian>
void
-Sized_relobj<size, big_endian>::do_count_local_symbols(Stringpool* pool,
- Stringpool* dynpool)
+Sized_relobj_file<size, big_endian>::do_count_local_symbols(Stringpool* pool,
+ Stringpool* dynpool)
{
gold_assert(this->symtab_shndx_ != -1U);
if (this->symtab_shndx_ == 0)
unsigned int dyncount = 0;
// Skip the first, dummy, symbol.
psyms += sym_size;
+ bool strip_all = parameters->options().strip_all();
bool discard_all = parameters->options().discard_all();
bool discard_locals = parameters->options().discard_locals();
for (unsigned int i = 1; i < loccount; ++i, psyms += sym_size)
if ((shndx < shnum && out_sections[shndx] == NULL)
|| shndx == this->discarded_eh_frame_shndx_)
- {
+ {
lv.set_no_output_symtab_entry();
- gold_assert(!lv.needs_output_dynsym_entry());
- continue;
- }
+ gold_assert(!lv.needs_output_dynsym_entry());
+ continue;
+ }
- if (sym.get_st_type() == elfcpp::STT_SECTION)
+ if (sym.get_st_type() == elfcpp::STT_SECTION
+ || !this->adjust_local_symbol(&lv))
{
lv.set_no_output_symtab_entry();
- gold_assert(!lv.needs_output_dynsym_entry());
+ gold_assert(!lv.needs_output_dynsym_entry());
continue;
}
// If needed, add the symbol to the dynamic symbol table string pool.
if (lv.needs_output_dynsym_entry())
- {
- dynpool->add(name, true, NULL);
- ++dyncount;
- }
+ {
+ dynpool->add(name, true, NULL);
+ ++dyncount;
+ }
- if (discard_all && lv.may_be_discarded_from_output_symtab())
+ if (strip_all
+ || (discard_all && lv.may_be_discarded_from_output_symtab()))
{
lv.set_no_output_symtab_entry();
continue;
// Discard the local symbol if -retain_symbols_file is specified
// and the local symbol is not in that file.
if (!parameters->options().should_retain_symbol(name))
- {
- lv.set_no_output_symtab_entry();
- continue;
- }
+ {
+ lv.set_no_output_symtab_entry();
+ continue;
+ }
// Add the symbol to the symbol table string pool.
pool->add(name, true, NULL);
// Compute the final value of a local symbol.
template<int size, bool big_endian>
-typename Sized_relobj<size, big_endian>::Compute_final_local_value_status
-Sized_relobj<size, big_endian>::compute_final_local_value_internal(
+typename Sized_relobj_file<size, big_endian>::Compute_final_local_value_status
+Sized_relobj_file<size, big_endian>::compute_final_local_value_internal(
unsigned int r_sym,
const Symbol_value<size>* lv_in,
Symbol_value<size>* lv_out,
bool is_ordinary;
unsigned int shndx = lv_in->input_shndx(&is_ordinary);
-
+
// Set the output symbol value.
-
+
if (!is_ordinary)
{
if (shndx == elfcpp::SHN_ABS || Symbol::is_common_shndx(shndx))
lv_out->set_output_value(0);
return This::CFLV_ERROR;
}
-
+
Output_section* os = out_sections[shndx];
Address secoffset = out_offsets[shndx];
if (symtab->is_section_folded(this, shndx))
Section_id folded = symtab->icf()->get_folded_section(this,
shndx);
gold_assert(folded.first != NULL);
- Sized_relobj<size, big_endian>* folded_obj = reinterpret_cast
- <Sized_relobj<size, big_endian>*>(folded.first);
+ Sized_relobj_file<size, big_endian>* folded_obj = reinterpret_cast
+ <Sized_relobj_file<size, big_endian>*>(folded.first);
os = folded_obj->output_section(folded.second);
gold_assert(os != NULL);
secoffset = folded_obj->get_output_section_offset(folded.second);
-
+
// This could be a relaxed input section.
if (secoffset == invalid_address)
{
secoffset = relaxed_section->address() - os->address();
}
}
-
+
if (os == NULL)
{
// This local symbol belongs to a section we are discarding.
else if (secoffset == invalid_address)
{
uint64_t start;
-
+
// This is a SHF_MERGE section or one which otherwise
// requires special handling.
if (shndx == this->discarded_eh_frame_shndx_)
lv_out->set_merged_symbol_value(msv);
}
}
- else if (lv_in->is_tls_symbol())
+ else if (lv_in->is_tls_symbol()
+ || (lv_in->is_section_symbol()
+ && (os->flags() & elfcpp::SHF_TLS)))
lv_out->set_output_value(os->tls_offset()
+ secoffset
+ lv_in->input_value());
// everything is finalized. The caller should also free up any allocated
// memory in the return value in *LV.
template<int size, bool big_endian>
-typename Sized_relobj<size, big_endian>::Compute_final_local_value_status
-Sized_relobj<size, big_endian>::compute_final_local_value(
+typename Sized_relobj_file<size, big_endian>::Compute_final_local_value_status
+Sized_relobj_file<size, big_endian>::compute_final_local_value(
unsigned int r_sym,
const Symbol_value<size>* lv_in,
Symbol_value<size>* lv_out,
// This is just a wrapper of compute_final_local_value_internal.
const bool relocatable = parameters->options().relocatable();
const Output_sections& out_sections(this->output_sections());
- const std::vector<Address>& out_offsets(this->section_offsets_);
+ const std::vector<Address>& out_offsets(this->section_offsets());
return this->compute_final_local_value_internal(r_sym, lv_in, lv_out,
relocatable, out_sections,
out_offsets, symtab);
template<int size, bool big_endian>
unsigned int
-Sized_relobj<size, big_endian>::do_finalize_local_symbols(unsigned int index,
- off_t off,
- Symbol_table* symtab)
+Sized_relobj_file<size, big_endian>::do_finalize_local_symbols(
+ unsigned int index,
+ off_t off,
+ Symbol_table* symtab)
{
gold_assert(off == static_cast<off_t>(align_address(off, size >> 3)));
const bool relocatable = parameters->options().relocatable();
const Output_sections& out_sections(this->output_sections());
- const std::vector<Address>& out_offsets(this->section_offsets_);
+ const std::vector<Address>& out_offsets(this->section_offsets());
for (unsigned int i = 1; i < loccount; ++i)
{
template<int size, bool big_endian>
unsigned int
-Sized_relobj<size, big_endian>::do_set_local_dynsym_indexes(unsigned int index)
+Sized_relobj_file<size, big_endian>::do_set_local_dynsym_indexes(
+ unsigned int index)
{
const unsigned int loccount = this->local_symbol_count_;
for (unsigned int i = 1; i < loccount; ++i)
{
Symbol_value<size>& lv(this->local_values_[i]);
if (lv.needs_output_dynsym_entry())
- {
- lv.set_output_dynsym_index(index);
- ++index;
- }
+ {
+ lv.set_output_dynsym_index(index);
+ ++index;
+ }
}
return index;
}
template<int size, bool big_endian>
unsigned int
-Sized_relobj<size, big_endian>::do_set_local_dynsym_offset(off_t off)
+Sized_relobj_file<size, big_endian>::do_set_local_dynsym_offset(off_t off)
{
gold_assert(off == static_cast<off_t>(align_address(off, size >> 3)));
this->local_dynsym_offset_ = off;
template<int size, bool big_endian>
uint64_t
-Sized_relobj<size, big_endian>::do_section_flags(unsigned int shndx)
+Sized_relobj_file<size, big_endian>::do_section_flags(unsigned int shndx)
{
Symbols_data* sd = this->get_symbols_data();
if (sd != NULL)
{
const unsigned char* pshdrs = sd->section_headers_data
- + This::shdr_size * shndx;
+ + This::shdr_size * shndx;
typename This::Shdr shdr(pshdrs);
- return shdr.get_sh_flags();
+ return shdr.get_sh_flags();
}
// If sd is NULL, read the section header from the file.
- return this->elf_file_.section_flags(shndx);
+ return this->elf_file_.section_flags(shndx);
}
// Get the section's ent size from Symbols_data. Called by get_section_contents
template<int size, bool big_endian>
uint64_t
-Sized_relobj<size, big_endian>::do_section_entsize(unsigned int shndx)
+Sized_relobj_file<size, big_endian>::do_section_entsize(unsigned int shndx)
{
Symbols_data* sd = this->get_symbols_data();
gold_assert(sd != NULL);
const unsigned char* pshdrs = sd->section_headers_data
- + This::shdr_size * shndx;
+ + This::shdr_size * shndx;
typename This::Shdr shdr(pshdrs);
- return shdr.get_sh_entsize();
+ return shdr.get_sh_entsize();
}
// Write out the local symbols.
template<int size, bool big_endian>
void
-Sized_relobj<size, big_endian>::write_local_symbols(
+Sized_relobj_file<size, big_endian>::write_local_symbols(
Output_file* of,
const Stringpool* sympool,
const Stringpool* dynpool,
Output_symtab_xindex* symtab_xindex,
- Output_symtab_xindex* dynsym_xindex)
+ Output_symtab_xindex* dynsym_xindex,
+ off_t symtab_off)
{
const bool strip_all = parameters->options().strip_all();
if (strip_all)
off_t output_size = this->output_local_symbol_count_ * sym_size;
unsigned char* oview = NULL;
if (output_size > 0)
- oview = of->get_output_view(this->local_symbol_offset_, output_size);
+ oview = of->get_output_view(symtab_off + this->local_symbol_offset_,
+ output_size);
off_t dyn_output_size = this->output_local_dynsym_count_ * sym_size;
unsigned char* dyn_oview = NULL;
if (dyn_output_size > 0)
dyn_oview = of->get_output_view(this->local_dynsym_offset_,
- dyn_output_size);
+ dyn_output_size);
const Output_sections out_sections(this->output_sections());
// Write the symbol to the output symbol table.
if (lv.has_output_symtab_entry())
- {
- elfcpp::Sym_write<size, big_endian> osym(ov);
-
- gold_assert(isym.get_st_name() < strtab_size);
- const char* name = pnames + isym.get_st_name();
- osym.put_st_name(sympool->get_offset(name));
- osym.put_st_value(this->local_values_[i].value(this, 0));
- osym.put_st_size(isym.get_st_size());
- osym.put_st_info(isym.get_st_info());
- osym.put_st_other(isym.get_st_other());
- osym.put_st_shndx(st_shndx);
-
- ov += sym_size;
- }
+ {
+ elfcpp::Sym_write<size, big_endian> osym(ov);
+
+ gold_assert(isym.get_st_name() < strtab_size);
+ const char* name = pnames + isym.get_st_name();
+ osym.put_st_name(sympool->get_offset(name));
+ osym.put_st_value(this->local_values_[i].value(this, 0));
+ osym.put_st_size(isym.get_st_size());
+ osym.put_st_info(isym.get_st_info());
+ osym.put_st_other(isym.get_st_other());
+ osym.put_st_shndx(st_shndx);
+
+ ov += sym_size;
+ }
// Write the symbol to the output dynamic symbol table.
if (lv.has_output_dynsym_entry())
- {
- gold_assert(dyn_ov < dyn_oview + dyn_output_size);
- elfcpp::Sym_write<size, big_endian> osym(dyn_ov);
-
- gold_assert(isym.get_st_name() < strtab_size);
- const char* name = pnames + isym.get_st_name();
- osym.put_st_name(dynpool->get_offset(name));
- osym.put_st_value(this->local_values_[i].value(this, 0));
- osym.put_st_size(isym.get_st_size());
- osym.put_st_info(isym.get_st_info());
- osym.put_st_other(isym.get_st_other());
- osym.put_st_shndx(st_shndx);
-
- dyn_ov += sym_size;
- }
+ {
+ gold_assert(dyn_ov < dyn_oview + dyn_output_size);
+ elfcpp::Sym_write<size, big_endian> osym(dyn_ov);
+
+ gold_assert(isym.get_st_name() < strtab_size);
+ const char* name = pnames + isym.get_st_name();
+ osym.put_st_name(dynpool->get_offset(name));
+ osym.put_st_value(this->local_values_[i].value(this, 0));
+ osym.put_st_size(isym.get_st_size());
+ osym.put_st_info(isym.get_st_info());
+ osym.put_st_other(isym.get_st_other());
+ osym.put_st_shndx(st_shndx);
+
+ dyn_ov += sym_size;
+ }
}
if (output_size > 0)
{
gold_assert(ov - oview == output_size);
- of->write_output_view(this->local_symbol_offset_, output_size, oview);
+ of->write_output_view(symtab_off + this->local_symbol_offset_,
+ output_size, oview);
}
if (dyn_output_size > 0)
{
gold_assert(dyn_ov - dyn_oview == dyn_output_size);
of->write_output_view(this->local_dynsym_offset_, dyn_output_size,
- dyn_oview);
+ dyn_oview);
}
}
template<int size, bool big_endian>
bool
-Sized_relobj<size, big_endian>::get_symbol_location_info(
+Sized_relobj_file<size, big_endian>::get_symbol_location_info(
unsigned int shndx,
off_t offset,
Symbol_location_info* info)
&& static_cast<off_t>(sym.get_st_value()) <= offset
&& (static_cast<off_t>(sym.get_st_value() + sym.get_st_size())
> offset))
- {
- if (sym.get_st_name() > names_size)
+ {
+ info->enclosing_symbol_type = sym.get_st_type();
+ if (sym.get_st_name() > names_size)
info->enclosing_symbol_name = "(invalid)";
else
- {
- info->enclosing_symbol_name = symbol_names + sym.get_st_name();
- if (parameters->options().do_demangle())
- {
- char* demangled_name = cplus_demangle(
- info->enclosing_symbol_name.c_str(),
- DMGL_ANSI | DMGL_PARAMS);
- if (demangled_name != NULL)
- {
- info->enclosing_symbol_name.assign(demangled_name);
- free(demangled_name);
- }
- }
- }
+ {
+ info->enclosing_symbol_name = symbol_names + sym.get_st_name();
+ if (parameters->options().do_demangle())
+ {
+ char* demangled_name = cplus_demangle(
+ info->enclosing_symbol_name.c_str(),
+ DMGL_ANSI | DMGL_PARAMS);
+ if (demangled_name != NULL)
+ {
+ info->enclosing_symbol_name.assign(demangled_name);
+ free(demangled_name);
+ }
+ }
+ }
return true;
- }
+ }
}
return false;
// debugging sections. If we can't find the kept section, return 0.
template<int size, bool big_endian>
-typename Sized_relobj<size, big_endian>::Address
-Sized_relobj<size, big_endian>::map_to_kept_section(
+typename Sized_relobj_file<size, big_endian>::Address
+Sized_relobj_file<size, big_endian>::map_to_kept_section(
unsigned int shndx,
bool* found) const
{
unsigned int kept_shndx;
if (this->get_kept_comdat_section(shndx, &kept_object, &kept_shndx))
{
- Sized_relobj<size, big_endian>* kept_relobj =
- static_cast<Sized_relobj<size, big_endian>*>(kept_object);
+ Sized_relobj_file<size, big_endian>* kept_relobj =
+ static_cast<Sized_relobj_file<size, big_endian>*>(kept_object);
Output_section* os = kept_relobj->output_section(kept_shndx);
Address offset = kept_relobj->get_output_section_offset(kept_shndx);
if (os != NULL && offset != invalid_address)
template<int size, bool big_endian>
void
-Sized_relobj<size, big_endian>::do_get_global_symbol_counts(
+Sized_relobj_file<size, big_endian>::do_get_global_symbol_counts(
const Symbol_table*,
size_t* defined,
size_t* used) const
{
*defined = this->defined_count_;
size_t count = 0;
- for (Symbols::const_iterator p = this->symbols_.begin();
+ for (typename Symbols::const_iterator p = this->symbols_.begin();
p != this->symbols_.end();
++p)
if (*p != NULL
*used = count;
}
+// Return a view of the decompressed contents of a section. Set *PLEN
+// 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(
+ unsigned int shndx,
+ section_size_type* plen,
+ bool* is_new)
+{
+ section_size_type buffer_size;
+ const unsigned char* buffer = this->do_section_contents(shndx, &buffer_size,
+ false);
+
+ if (this->compressed_sections_ == NULL)
+ {
+ *plen = buffer_size;
+ *is_new = false;
+ return buffer;
+ }
+
+ Compressed_section_map::const_iterator p =
+ this->compressed_sections_->find(shndx);
+ if (p == this->compressed_sections_->end())
+ {
+ *plen = buffer_size;
+ *is_new = false;
+ return buffer;
+ }
+
+ section_size_type uncompressed_size = p->second.size;
+ if (p->second.contents != NULL)
+ {
+ *plen = uncompressed_size;
+ *is_new = false;
+ return p->second.contents;
+ }
+
+ unsigned char* uncompressed_data = new unsigned char[uncompressed_size];
+ if (!decompress_input_section(buffer,
+ buffer_size,
+ uncompressed_data,
+ uncompressed_size))
+ this->error(_("could not decompress section %s"),
+ this->do_section_name(shndx).c_str());
+
+ // We could cache the results in p->second.contents and store
+ // false in *IS_NEW, but build_compressed_section_map() would
+ // have done so if it had expected it to be profitable. If
+ // we reach this point, we expect to need the contents only
+ // once in this pass.
+ *plen = uncompressed_size;
+ *is_new = true;
+ return uncompressed_data;
+}
+
+// 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()
+{
+ if (this->compressed_sections_ == NULL)
+ return;
+
+ for (Compressed_section_map::iterator p = this->compressed_sections_->begin();
+ p != this->compressed_sections_->end();
+ ++p)
+ {
+ if (p->second.contents != NULL)
+ {
+ delete[] p->second.contents;
+ p->second.contents = NULL;
+ }
+ }
+}
+
// Input_objects methods.
// Add a regular relocatable object to the list. Return false if this
// Relocate_info methods.
-// Return a string describing the location of a relocation. This is
-// only used in error messages.
+// Return a string describing the location of a relocation when file
+// and lineno information is not available. This is only used in
+// error messages.
template<int size, bool big_endian>
std::string
Relocate_info<size, big_endian>::location(size_t, off_t offset) const
{
- // See if we can get line-number information from debugging sections.
- std::string filename;
- std::string file_and_lineno; // Better than filename-only, if available.
-
Sized_dwarf_line_info<size, big_endian> line_info(this->object);
- // This will be "" if we failed to parse the debug info for any reason.
- file_and_lineno = line_info.addr2line(this->data_shndx, offset);
+ std::string ret = line_info.addr2line(this->data_shndx, offset, NULL);
+ if (!ret.empty())
+ return ret;
+
+ ret = this->object->name();
- std::string ret(this->object->name());
- ret += ':';
Symbol_location_info info;
if (this->object->get_symbol_location_info(this->data_shndx, offset, &info))
{
- ret += " in function ";
- ret += info.enclosing_symbol_name;
+ if (!info.source_file.empty())
+ {
+ ret += ":";
+ ret += info.source_file;
+ }
ret += ":";
- filename = info.source_file;
+ if (info.enclosing_symbol_type == elfcpp::STT_FUNC)
+ ret += _("function ");
+ ret += info.enclosing_symbol_name;
+ return ret;
}
- if (!file_and_lineno.empty())
- ret += file_and_lineno;
- else
- {
- if (!filename.empty())
- ret += filename;
- ret += "(";
- ret += this->object->section_name(this->data_shndx);
- char buf[100];
- // Offsets into sections have to be positive.
- snprintf(buf, sizeof(buf), "+0x%lx", static_cast<long>(offset));
- ret += buf;
- ret += ")";
- }
+ ret += "(";
+ ret += this->object->section_name(this->data_shndx);
+ char buf[100];
+ snprintf(buf, sizeof buf, "+0x%lx)", static_cast<long>(offset));
+ ret += buf;
return ret;
}
off_t offset, const elfcpp::Ehdr<size, big_endian>& ehdr,
bool* punconfigured)
{
- Target* target = select_target(ehdr.get_e_machine(), size, big_endian,
+ Target* target = select_target(input_file, offset,
+ ehdr.get_e_machine(), size, big_endian,
ehdr.get_e_ident()[elfcpp::EI_OSABI],
ehdr.get_e_ident()[elfcpp::EI_ABIVERSION]);
if (target == NULL)
bool big_endian = false;
int size = 0;
if (!elfcpp::Elf_recognizer::is_valid_header(p, bytes, &size,
- &big_endian, &error))
+ &big_endian, &error))
{
gold_error(_("%s: %s"), name.c_str(), error.c_str());
return NULL;
void
Object::read_section_data<32, false>(elfcpp::Elf_file<32, false, Object>*,
Read_symbols_data*);
+template
+const unsigned char*
+Object::find_shdr<32,false>(const unsigned char*, const char*, const char*,
+ section_size_type, const unsigned char*) const;
#endif
#ifdef HAVE_TARGET_32_BIG
void
Object::read_section_data<32, true>(elfcpp::Elf_file<32, true, Object>*,
Read_symbols_data*);
+template
+const unsigned char*
+Object::find_shdr<32,true>(const unsigned char*, const char*, const char*,
+ section_size_type, const unsigned char*) const;
#endif
#ifdef HAVE_TARGET_64_LITTLE
void
Object::read_section_data<64, false>(elfcpp::Elf_file<64, false, Object>*,
Read_symbols_data*);
+template
+const unsigned char*
+Object::find_shdr<64,false>(const unsigned char*, const char*, const char*,
+ section_size_type, const unsigned char*) const;
#endif
#ifdef HAVE_TARGET_64_BIG
void
Object::read_section_data<64, true>(elfcpp::Elf_file<64, true, Object>*,
Read_symbols_data*);
+template
+const unsigned char*
+Object::find_shdr<64,true>(const unsigned char*, const char*, const char*,
+ section_size_type, const unsigned char*) const;
#endif
#ifdef HAVE_TARGET_32_LITTLE
template
class Sized_relobj<32, false>;
+
+template
+class Sized_relobj_file<32, false>;
#endif
#ifdef HAVE_TARGET_32_BIG
template
class Sized_relobj<32, true>;
+
+template
+class Sized_relobj_file<32, true>;
#endif
#ifdef HAVE_TARGET_64_LITTLE
template
class Sized_relobj<64, false>;
+
+template
+class Sized_relobj_file<64, false>;
#endif
#ifdef HAVE_TARGET_64_BIG
template
class Sized_relobj<64, true>;
+
+template
+class Sized_relobj_file<64, true>;
#endif
#ifdef HAVE_TARGET_32_LITTLE
projects / platform / upstream / binutils.git / blobdiff