#include "object.h"
#include "dynobj.h"
#include "plugin.h"
+#include "compressed_output.h"
+#include "incremental.h"
namespace gold
{
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 reloation index.
+
+void
+Relobj::finalize_incremental_relocs(Layout* layout)
+{
+ unsigned int nsyms = this->get_global_symbols()->size();
+ this->reloc_bases_ = new unsigned int[nsyms];
+
+ gold_assert(this->reloc_bases_ != NULL);
+ gold_assert(layout->incremental_inputs() != NULL);
+
+ unsigned int rindex = layout->incremental_inputs()->get_reloc_count();
+ for (unsigned int i = 0; i < nsyms; ++i)
+ {
+ this->reloc_bases_[i] = rindex;
+ rindex += this->reloc_counts_[i];
+ this->reloc_counts_[i] = 0;
+ }
+ layout->incremental_inputs()->set_reloc_count(rindex);
+}
+
// Class Sized_relobj.
template<int size, bool big_endian>
local_dynsym_offset_(0),
local_values_(),
local_got_offsets_(),
+ local_plt_offsets_(),
kept_comdat_sections_(),
has_eh_frame_(false),
- discarded_eh_frame_shndx_(-1U)
+ discarded_eh_frame_shndx_(-1U),
+ deferred_layout_(),
+ deferred_layout_relocs_(),
+ compressed_sections_()
{
}
return false;
}
+// Build a table for any compressed debug sections, mapping each section index
+// to the uncompressed size.
+
+template<int size, bool big_endian>
+Compressed_section_map*
+build_compressed_section_map(
+ const unsigned char* pshdrs,
+ unsigned int shnum,
+ const char* names,
+ section_size_type names_size,
+ Sized_relobj<size, big_endian>* obj)
+{
+ Compressed_section_map* uncompressed_sizes = 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);
+ if (shdr.get_sh_type() == elfcpp::SHT_PROGBITS
+ && (shdr.get_sh_flags() & elfcpp::SHF_ALLOC) == 0)
+ {
+ if (shdr.get_sh_name() >= names_size)
+ {
+ obj->error(_("bad section name offset for section %u: %lu"),
+ i, static_cast<unsigned long>(shdr.get_sh_name()));
+ continue;
+ }
+
+ const char* name = names + shdr.get_sh_name();
+ if (is_compressed_debug_section(name))
+ {
+ section_size_type len;
+ const unsigned char* contents =
+ obj->section_contents(i, &len, false);
+ uint64_t uncompressed_size = get_uncompressed_size(contents, len);
+ if (uncompressed_size != -1ULL)
+ (*uncompressed_sizes)[i] =
+ convert_to_section_size_type(uncompressed_size);
+ }
+ }
+ }
+ return uncompressed_sizes;
+}
+
// Read the sections and symbols from an object file.
template<int size, bool big_endian>
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);
sd->symbols = NULL;
sd->symbols_size = 0;
}
}
+ // 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 (discard)
{
// Do not include this section in the link.
gold_assert(external_symbols_offset != 0);
unsigned int i = *p;
- const unsigned char *pshdr;
+ const unsigned char* pshdr;
pshdr = section_headers_data + i * This::shdr_size;
typename This::Shdr shdr(pshdr);
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)
{
unsigned int st_name = sym.get_st_name();
const char* name = sym_names + st_name;
Symbol* symbol;
- Archive::Should_include t = Archive::should_include_member(symtab, name,
+ Archive::Should_include t = Archive::should_include_member(symtab,
+ layout,
+ name,
&symbol, why,
&tmpbuf,
&tmpbuflen);
return Archive::SHOULD_INCLUDE_UNKNOWN;
}
+// 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
+{
+ typename Local_plt_offsets::const_iterator p =
+ this->local_plt_offsets_.find(symndx);
+ return p != this->local_plt_offsets_.end();
+}
+
+// Get the PLT offset of a local symbol.
+
+template<int size, bool big_endian>
+unsigned int
+Sized_relobj<size, big_endian>::local_plt_offset(unsigned int symndx) const
+{
+ typename Local_plt_offsets::const_iterator p =
+ this->local_plt_offsets_.find(symndx);
+ gold_assert(p != this->local_plt_offsets_.end());
+ return p->second;
+}
+
+// Set the PLT offset of a local symbol.
+
+template<int size, bool big_endian>
+void
+Sized_relobj<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));
+ gold_assert(ins.second);
+}
+
// First pass over the local symbols. Here we add their names to
// *POOL and *DYNPOOL, and we store the symbol value in
// THIS->LOCAL_VALUES_. This function is always called from a
lv.set_is_section_symbol();
else if (sym.get_st_type() == elfcpp::STT_TLS)
lv.set_is_tls_symbol();
+ else if (sym.get_st_type() == elfcpp::STT_GNU_IFUNC)
+ lv.set_is_ifunc_symbol();
// Save the input symbol value for use in do_finalize_local_symbols().
lv.set_input_value(sym.get_st_value());
Address secoffset = out_offsets[shndx];
if (symtab->is_section_folded(this, shndx))
{
- gold_assert (os == NULL && secoffset == invalid_address);
+ gold_assert(os == NULL && secoffset == invalid_address);
// Get the os of the section it is folded onto.
Section_id folded = symtab->icf()->get_folded_section(this,
shndx);
Sized_relobj<size, big_endian>::do_section_entsize(unsigned int shndx)
{
Symbols_data* sd = this->get_symbols_data();
- gold_assert (sd != NULL);
+ gold_assert(sd != NULL);
const unsigned char* pshdrs = sd->section_headers_data
+ This::shdr_size * shndx;
return shdr.get_sh_entsize();
}
-
// Write out the local symbols.
template<int size, bool big_endian>
bool
is_elf_object(Input_file* input_file, off_t offset,
- const unsigned char** start, int *read_size)
+ const unsigned char** start, int* read_size)
{
off_t filesize = input_file->file().filesize();
int want = elfcpp::Elf_recognizer::max_header_size;