// inremental.cc -- incremental linking support for gold
-// Copyright 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
+// Copyright (C) 2009-2021 Free Software Foundation, Inc.
// Written by Mikolaj Zalewski <mikolajz@google.com>.
// This file is part of gold.
#include "incremental.h"
#include "archive.h"
#include "object.h"
-#include "output.h"
#include "target-select.h"
#include "target.h"
#include "fileread.h"
// Return TRUE if a section of type SH_TYPE can be updated in place
// during an incremental update. We can update sections of type PROGBITS,
-// NOBITS, INIT_ARRAY, FINI_ARRAY, PREINIT_ARRAY, and NOTE. All others
-// will be regenerated.
+// NOBITS, INIT_ARRAY, FINI_ARRAY, PREINIT_ARRAY, NOTE, and
+// (processor-specific) unwind sections. All others will be regenerated.
bool
can_incremental_update(unsigned int sh_type)
|| sh_type == elfcpp::SHT_INIT_ARRAY
|| sh_type == elfcpp::SHT_FINI_ARRAY
|| sh_type == elfcpp::SHT_PREINIT_ARRAY
- || sh_type == elfcpp::SHT_NOTE);
+ || sh_type == elfcpp::SHT_NOTE
+ || sh_type == parameters->target().unwind_section_type());
}
// Find the .gnu_incremental_inputs section and related sections.
for (unsigned int i = 0; i < count; i++)
{
Input_entry_reader input_file = inputs.input_file(i);
+#if __cplusplus >= 2001103L
+ this->input_entry_readers_.emplace_back(input_file);
+#else
this->input_entry_readers_.push_back(Sized_input_reader(input_file));
+#endif
switch (input_file.type())
{
case INCREMENTAL_INPUT_OBJECT:
{
Target* target = select_target(NULL, 0, // XXX
ehdr.get_e_machine(), size, big_endian,
- ehdr.get_e_ident()[elfcpp::EI_OSABI],
- ehdr.get_e_ident()[elfcpp::EI_ABIVERSION]);
+ ehdr.get_ei_osabi(),
+ ehdr.get_ei_abiversion());
if (target == NULL)
{
explain_no_incremental(_("unsupported ELF machine number %d"),
unsigned int first_plt_entry_offset;
// Size of a PLT entry (this is a target-dependent value).
unsigned int plt_entry_size;
+ // Size of a GOT entry (this is a target-dependent value).
+ unsigned int got_entry_size;
// Symbol index to write in the GOT descriptor array. For global symbols,
// this is the global symbol table index; for local symbols, it is the
// local symbol table index.
void
visit(unsigned int got_type, unsigned int got_offset)
{
- unsigned int got_index = got_offset / this->got_entry_size_;
+ unsigned int got_index = got_offset / this->info_.got_entry_size;
gold_assert(got_index < this->info_.got_count);
// We can only handle GOT entry types in the range 0..0x7e
// because we use a byte array to store them, and we use the
}
private:
- static const unsigned int got_entry_size_ = size / 8;
struct Got_plt_view_info& info_;
};
void
visit(unsigned int got_type, unsigned int got_offset)
{
- unsigned int got_index = got_offset / this->got_entry_size_;
+ unsigned int got_index = got_offset / this->info_.got_entry_size;
gold_assert(got_index < this->info_.got_count);
// We can only handle GOT entry types in the range 0..0x7e
// because we use a byte array to store them, and we use the
}
private:
- static const unsigned int got_entry_size_ = size / 8;
struct Got_plt_view_info& info_;
};
view_info.plt_count = target->plt_entry_count();
view_info.first_plt_entry_offset = target->first_plt_entry_offset();
view_info.plt_entry_size = target->plt_entry_size();
+ view_info.got_entry_size = target->got_entry_size();
view_info.got_type_p = pov + 8;
view_info.got_desc_p = (view_info.got_type_p
+ ((view_info.got_count + 3) & ~3));
{
const int sym_size = elfcpp::Elf_sizes<size>::sym_size;
unsigned char symbuf[sym_size];
- elfcpp::Sym<size, big_endian> sym(symbuf);
elfcpp::Sym_write<size, big_endian> osym(symbuf);
typedef typename elfcpp::Elf_types<size>::Elf_WXword Elf_size_type;
osym.put_st_other(gsym.get_st_other());
osym.put_st_shndx(shndx);
+ elfcpp::Sym<size, big_endian> sym(symbuf);
Symbol* res = symtab->add_from_incrobj(this, name, NULL, &sym);
if (shndx != elfcpp::SHN_UNDEF)
template<int size, bool big_endian>
std::string
-Sized_relobj_incr<size, big_endian>::do_section_name(unsigned int shndx)
+Sized_relobj_incr<size, big_endian>::do_section_name(unsigned int shndx) const
{
- Output_sections& out_sections(this->output_sections());
- Output_section* os = out_sections[shndx];
+ const Output_sections& out_sections(this->output_sections());
+ const Output_section* os = out_sections[shndx];
if (os == NULL)
return NULL;
return os->name();
// Relocate the input sections and write out the local symbols.
// We don't actually do any relocation here. For unchanged input files,
// we reapply relocations only for symbols that have changed; that happens
-// in queue_final_tasks. We do need to rewrite the incremental relocations
-// for this object.
+// in Layout_task_runner::run(). We do need to rewrite the incremental
+// relocations for this object.
template<int size, bool big_endian>
void
{
const int sym_size = elfcpp::Elf_sizes<size>::sym_size;
unsigned char symbuf[sym_size];
- elfcpp::Sym<size, big_endian> sym(symbuf);
elfcpp::Sym_write<size, big_endian> osym(symbuf);
unsigned int nsyms = this->input_reader_.get_global_symbol_count();
osym.put_st_other(gsym.get_st_other());
osym.put_st_shndx(shndx);
+ elfcpp::Sym<size, big_endian> sym(symbuf);
Sized_symbol<size>* res =
symtab->add_from_incrobj<size, big_endian>(this, name, NULL, &sym);
this->symbols_[i] = res;
template<int size, bool big_endian>
std::string
-Sized_incr_dynobj<size, big_endian>::do_section_name(unsigned int)
+Sized_incr_dynobj<size, big_endian>::do_section_name(unsigned int) const
{
gold_unreachable();
}