[deliverable/binutils-gdb.git] / gold / incremental-dump.cc

// incremental.cc -- incremental linking test/debug tool

// Copyright 2009, 2010 Free Software Foundation, Inc.
// Written by Rafael Avila de Espindola <rafael.espindola@gmail.com>

// This file is part of gold.

// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
// MA 02110-1301, USA.


// This file is a (still incomplete) test/debug tool that should display
// all information available in the incremental linking sections in a
// format that is easy to read.
// Once the format is a bit more stable, this should probably be moved to
// readelf. Because of that, the use of gold's data structures and functions
// is just a short term convenience and not a design decision.

#include "gold.h"

#include <stdio.h>
#include <errno.h>
#include <time.h>

#include "incremental.h"

namespace gold
{
  class Output_file;
}

using namespace gold;

template<int size, bool big_endian>
static typename Incremental_inputs_reader<size, big_endian>::
    Incremental_input_entry_reader
find_input_containing_global(
    Incremental_inputs_reader<size, big_endian>& incremental_inputs,
    unsigned int offset,
    unsigned int* symndx)
{
  typedef Incremental_inputs_reader<size, big_endian> Inputs_reader;
  static const unsigned int global_sym_entry_size =
      Incremental_inputs_reader<size, big_endian>::global_sym_entry_size;

  for (unsigned int i = 0; i < incremental_inputs.input_file_count(); ++i)
    {
      typename Inputs_reader::Incremental_input_entry_reader input_file =
	  incremental_inputs.input_file(i);
      if (input_file.type() != INCREMENTAL_INPUT_OBJECT
          && input_file.type() != INCREMENTAL_INPUT_ARCHIVE_MEMBER)
        continue;
      unsigned int nsyms = input_file.get_global_symbol_count();
      if (offset >= input_file.get_symbol_offset(0)
          && offset < input_file.get_symbol_offset(nsyms))
	{
	  *symndx = ((offset - input_file.get_symbol_offset(0))
		     / global_sym_entry_size);
	  return input_file;
	}
    }
  gold_unreachable();
}

template<int size, bool big_endian>
static void
dump_incremental_inputs(const char* argv0, const char* filename,
			Sized_incremental_binary<size, big_endian>* inc)
{
  typedef Incremental_binary::Location Location;
  typedef Incremental_binary::View View;
  typedef Incremental_inputs_reader<size, big_endian> Inputs_reader;
  typedef typename Inputs_reader::Incremental_input_entry_reader Entry_reader;

  if (!inc->has_incremental_info())
    {
      fprintf(stderr, "%s: %s: no .gnu_incremental_inputs section\n", argv0,
              filename);
      exit(1);
    }

  // Create a reader object for the .gnu_incremental_inputs section.

  Incremental_inputs_reader<size, big_endian>
      incremental_inputs(inc->inputs_reader());

  if (incremental_inputs.version() != 2)
    {
      fprintf(stderr, "%s: %s: unknown incremental version %d\n", argv0,
              filename, incremental_inputs.version());
      exit(1);
    }

  const char* command_line = incremental_inputs.command_line();
  if (command_line == NULL)
    {
      fprintf(stderr,
              "%s: %s: failed to get link command line\n",
              argv0, filename);
      exit(1);
    }
  printf("Link command line: %s\n", command_line);

  printf("\nInput files:\n");
  for (unsigned int i = 0; i < incremental_inputs.input_file_count(); ++i)
    {
      Entry_reader input_file = incremental_inputs.input_file(i);

      const char* objname = input_file.filename();
      if (objname == NULL)
	{
	  fprintf(stderr,"%s: %s: failed to get file name for object %u\n",
		  argv0, filename, i);
	  exit(1);
	}
      printf("[%d] %s\n", i, objname);

      Timespec mtime = input_file.get_mtime();
      printf("    Timestamp: %llu.%09d  %s",
	     static_cast<unsigned long long>(mtime.seconds),
	     mtime.nanoseconds,
	     ctime(&mtime.seconds));

      printf("    Serial Number: %d\n", input_file.arg_serial());
      printf("    In System Directory: %s\n",
	     input_file.is_in_system_directory() ? "true" : "false");

      Incremental_input_type input_type = input_file.type();
      printf("    Type: ");
      switch (input_type)
	{
	case INCREMENTAL_INPUT_OBJECT:
	case INCREMENTAL_INPUT_ARCHIVE_MEMBER:
	  printf("%s\n", (input_type == INCREMENTAL_INPUT_OBJECT
			  ? "Object" : "Archive member"));
	  printf("    Input section count: %d\n",
		 input_file.get_input_section_count());
	  printf("    Global symbol count: %d\n",
		 input_file.get_global_symbol_count());
	  printf("    Local symbol offset: %d\n",
		 input_file.get_local_symbol_offset());
	  printf("    Local symbol count: %d\n",
		 input_file.get_local_symbol_count());
	  printf("    First dynamic reloc: %d\n",
		 input_file.get_first_dyn_reloc());
	  printf("    Dynamic reloc count: %d\n",
		 input_file.get_dyn_reloc_count());
	  printf("    COMDAT group count: %d\n",
		 input_file.get_comdat_group_count());
	  break;
	case INCREMENTAL_INPUT_ARCHIVE:
	  printf("Archive\n");
	  printf("    Member count: %d\n", input_file.get_member_count());
	  printf("    Unused symbol count: %d\n",
		 input_file.get_unused_symbol_count());
	  break;
	case INCREMENTAL_INPUT_SHARED_LIBRARY:
	  printf("Shared library\n");
	  printf("    As needed: %s\n",
		 input_file.as_needed() ? "true" : "false");
	  printf("    soname: %s\n",
		 input_file.get_soname());
	  printf("    Symbol count: %d\n",
		 input_file.get_global_symbol_count());
	  break;
	case INCREMENTAL_INPUT_SCRIPT:
	  printf("Linker script\n");
	  printf("    Object count: %d\n", input_file.get_object_count());
	  break;
	default:
	  fprintf(stderr, "%s: invalid file type for object %u: %d\n",
		  argv0, i, input_type);
	  exit(1);
	}
    }

  printf("\nInput sections:\n");
  for (unsigned int i = 0; i < incremental_inputs.input_file_count(); ++i)
    {
      Entry_reader input_file(incremental_inputs.input_file(i));

      if (input_file.type() != INCREMENTAL_INPUT_OBJECT
	  && input_file.type() != INCREMENTAL_INPUT_ARCHIVE_MEMBER)
	continue;

      const char* objname = input_file.filename();
      if (objname == NULL)
	{
	  fprintf(stderr,"%s: %s: failed to get file name for object %u\n",
		  argv0, filename, i);
	  exit(1);
	}

      printf("[%d] %s\n", i, objname);

      printf("    %3s  %6s  %8s  %8s  %s\n",
	     "n", "outndx", "offset", "size", "name");
      unsigned int nsections = input_file.get_input_section_count();
      for (unsigned int shndx = 0; shndx < nsections; ++shndx)
	{
	  typename Entry_reader::Input_section_info info(
	      input_file.get_input_section(shndx));
	  printf("    %3d  %6d  %8lld  %8lld  %s\n", shndx + 1,
		 info.output_shndx,
		 static_cast<long long>(info.sh_offset),
		 static_cast<long long>(info.sh_size),
		 info.name);
	}

      unsigned int ncomdat = input_file.get_comdat_group_count();
      for (unsigned int i = 0; i < ncomdat; ++i)
	printf("    Comdat group: %s\n",
	       input_file.get_comdat_group_signature(i));
    }

  // Get a view of the .symtab section.

  elfcpp::Elf_file<size, big_endian, Incremental_binary> elf_file(inc);

  unsigned int symtab_shndx = elf_file.find_section_by_type(elfcpp::SHT_SYMTAB);
  if (symtab_shndx == elfcpp::SHN_UNDEF)  // Not found.
    {
      fprintf(stderr, "%s: %s: no symbol table section\n", argv0, filename);
      exit(1);
    }
  Location symtab_location(elf_file.section_contents(symtab_shndx));
  View symtab_view(inc->view(symtab_location));

  // Get a view of the .strtab section.

  unsigned int strtab_shndx = elf_file.section_link(symtab_shndx);
  if (strtab_shndx == elfcpp::SHN_UNDEF
      || strtab_shndx > elf_file.shnum()
      || elf_file.section_type(strtab_shndx) != elfcpp::SHT_STRTAB)
    {
      fprintf(stderr, "%s: %s: no string table section\n", argv0, filename);
      exit(1);
    }
  Location strtab_location(elf_file.section_contents(strtab_shndx));
  View strtab_view(inc->view(strtab_location));
  elfcpp::Elf_strtab strtab(strtab_view.data(), strtab_location.data_size);

  // The .gnu_incremental_symtab section contains entries that parallel
  // the global symbols of the main symbol table.  The sh_info field
  // of the main symbol table's section header tells us how many global
  // symbols there are, but that count does not include any global
  // symbols that were forced local during the link.  Therefore, we
  // use the size of the .gnu_incremental_symtab section to deduce
  // the number of global symbols + forced-local symbols there are
  // in the symbol table.
  Incremental_symtab_reader<big_endian> isymtab(inc->symtab_reader());
  Incremental_relocs_reader<size, big_endian> irelocs(inc->relocs_reader());
  unsigned int sym_size = elfcpp::Elf_sizes<size>::sym_size;
  unsigned int nsyms = symtab_location.data_size / sym_size;
  unsigned int nglobals = isymtab.symbol_count();
  unsigned int first_global = nsyms - nglobals;
  unsigned const char* sym_p;

  printf("\nGlobal symbols per input file:\n");
  for (unsigned int i = 0; i < incremental_inputs.input_file_count(); ++i)
    {
      Entry_reader input_file(incremental_inputs.input_file(i));

      if (input_file.type() != INCREMENTAL_INPUT_OBJECT
	  && input_file.type() != INCREMENTAL_INPUT_ARCHIVE_MEMBER
	  && input_file.type() != INCREMENTAL_INPUT_SHARED_LIBRARY)
	continue;

      const char* objname = input_file.filename();
      if (objname == NULL)
	{
	  fprintf(stderr,"%s: %s: failed to get file name for object %u\n",
		  argv0, filename, i);
	  exit(1);
	}

      printf("[%d] %s\n", i, objname);

      unsigned int nsyms = input_file.get_global_symbol_count();
      if (nsyms > 0)
	printf("    %6s  %6s  %8s  %8s  %8s  %8s\n",
	       "outndx", "shndx", "offset", "chain", "#relocs", "rbase");
      if (input_file.type() == INCREMENTAL_INPUT_SHARED_LIBRARY)
	{
	  for (unsigned int symndx = 0; symndx < nsyms; ++symndx)
	    {
	      bool is_def;
	      bool is_copy;
	      unsigned int output_symndx =
		  input_file.get_output_symbol_index(symndx, &is_def, &is_copy);
	      sym_p = symtab_view.data() + output_symndx * sym_size;
	      elfcpp::Sym<size, big_endian> sym(sym_p);
	      const char* symname;
	      if (!strtab.get_c_string(sym.get_st_name(), &symname))
		symname = "<unknown>";
	      printf("    %6d  %6s  %8s  %8s  %8s  %8s  %-5s  %s\n",
		     output_symndx,
		     "", "", "", "", "",
		     is_copy ? "COPY" : (is_def ? "DEF" : "UNDEF"),
		     symname);
	    }
	}
      else
	{
	  for (unsigned int symndx = 0; symndx < nsyms; ++symndx)
	    {
	      Incremental_global_symbol_reader<big_endian> info(
		  input_file.get_global_symbol_reader(symndx));
	      unsigned int output_symndx = info.output_symndx();
	      sym_p = symtab_view.data() + output_symndx * sym_size;
	      elfcpp::Sym<size, big_endian> sym(sym_p);
	      const char* symname;
	      if (!strtab.get_c_string(sym.get_st_name(), &symname))
		symname = "<unknown>";
	      printf("    %6d  %6d  %8d  %8d  %8d  %8d  %-5s  %s\n",
		     output_symndx,
		     info.shndx() == -1U ? -1 : info.shndx(),
		     input_file.get_symbol_offset(symndx),
		     info.next_offset(),
		     info.reloc_count(),
		     info.reloc_offset(),
		     (info.shndx() == -1U
		      ? "BASE"
		      : info.shndx() == 0 ? "UNDEF" : "DEF"),
		     symname);
	    }
	}
    }

  sym_p = symtab_view.data() + first_global * sym_size;
  printf("\nGlobal symbol table:\n");
  for (unsigned int i = 0; i < nglobals; i++)
    {
      elfcpp::Sym<size, big_endian> sym(sym_p);
      const char* symname;
      if (!strtab.get_c_string(sym.get_st_name(), &symname))
	symname = "<unknown>";
      printf("[%d] %s\n", first_global + i, symname);
      unsigned int offset = isymtab.get_list_head(i);
      while (offset > 0)
        {
	  unsigned int sym_ndx;
	  Entry_reader input_file =
	      find_input_containing_global<size, big_endian>(incremental_inputs,
							     offset, &sym_ndx);
	  Incremental_global_symbol_reader<big_endian> sym_info(
	      input_file.get_global_symbol_reader(sym_ndx));
	  printf("    %s (first reloc: %d, reloc count: %d)",
		 input_file.filename(), sym_info.reloc_offset(),
		 sym_info.reloc_count());
	  if (sym_info.output_symndx() != first_global + i)
	    printf(" ** wrong output symndx (%d) **", sym_info.output_symndx());
	  printf("\n");
	  // Dump the relocations from this input file for this symbol.
	  unsigned int r_off = sym_info.reloc_offset();
	  for (unsigned int j = 0; j < sym_info.reloc_count(); j++)
	    {
	      printf("      %4d  relocation type %3d  shndx %2d"
		     "  offset %016llx  addend %016llx  %s\n",
		     r_off,
		     irelocs.get_r_type(r_off),
		     irelocs.get_r_shndx(r_off),
		     static_cast<long long>(irelocs.get_r_offset(r_off)),
		     static_cast<long long>(irelocs.get_r_addend(r_off)),
		     symname);
	      r_off += irelocs.reloc_size;
	    }
	  offset = sym_info.next_offset();
	}
      sym_p += sym_size;
    }

  Incremental_got_plt_reader<big_endian> igot_plt(inc->got_plt_reader());
  unsigned int ngot = igot_plt.get_got_entry_count();
  unsigned int nplt = igot_plt.get_plt_entry_count();
  
  printf("\nGOT entries:\n");
  for (unsigned int i = 0; i < ngot; ++i)
    {
      unsigned int got_type = igot_plt.get_got_type(i);
      unsigned int got_symndx = igot_plt.get_got_symndx(i);
      unsigned int got_input_index = igot_plt.get_got_input_index(i);
      printf("[%d] type %02x, ", i, got_type & 0x7f);
      if ((got_type & 0x7f) == 0x7f)
	printf("reserved");
      else if (got_type & 0x80)
	{
	  Entry_reader input_file =
	      incremental_inputs.input_file(got_input_index);
	  const char* objname = input_file.filename();
	  printf("local: %s (%d)", objname, got_symndx);
	}
      else
	{
	  sym_p = symtab_view.data() + got_symndx * sym_size;
	  elfcpp::Sym<size, big_endian> sym(sym_p);
	  const char* symname;
	  if (!strtab.get_c_string(sym.get_st_name(), &symname))
	    symname = "<unknown>";
	  printf("global %s (%d)", symname, got_symndx);
	}
      printf("\n");
    }

  printf("\nPLT entries:\n");
  for (unsigned int i = 0; i < nplt; ++i)
    {
      unsigned int plt_desc = igot_plt.get_plt_desc(i);
      printf("[%d] ", i);
      sym_p = symtab_view.data() + plt_desc * sym_size;
      elfcpp::Sym<size, big_endian> sym(sym_p);
      const char* symname;
      if (!strtab.get_c_string(sym.get_st_name(), &symname))
	symname = "<unknown>";
      printf("%s (%d)\n", symname, plt_desc);
    }

  printf("\nUnused archive symbols:\n");
  for (unsigned int i = 0; i < incremental_inputs.input_file_count(); ++i)
    {
      Entry_reader input_file(incremental_inputs.input_file(i));

      if (input_file.type() != INCREMENTAL_INPUT_ARCHIVE)
	continue;

      const char* objname = input_file.filename();
      if (objname == NULL)
	{
	  fprintf(stderr,"%s: %s: failed to get file name for object %u\n",
		  argv0, filename, i);
	  exit(1);
	}

      printf("[%d] %s\n", i, objname);
      unsigned int nsyms = input_file.get_unused_symbol_count();
      for (unsigned int symndx = 0; symndx < nsyms; ++symndx)
        printf("    %s\n", input_file.get_unused_symbol(symndx));
    }

}

int
main(int argc, char** argv)
{
  if (argc != 2)
    {
      fprintf(stderr, "Usage: %s <file>\n", argv[0]);
      return 1;
    }
  const char* filename = argv[1];

  Output_file* file = new Output_file(filename);

  bool t = file->open_base_file(NULL, false);
  if (!t)
    {
      fprintf(stderr, "%s: open_base_file(%s): %s\n", argv[0], filename,
              strerror(errno));
      return 1;
    }

  Incremental_binary* inc = open_incremental_binary(file);

  if (inc == NULL)
    {
      fprintf(stderr, "%s: open_incremental_binary(%s): %s\n", argv[0],
              filename, strerror(errno));
      return 1;
    }

  switch (parameters->size_and_endianness())
    {
#ifdef HAVE_TARGET_32_LITTLE
    case Parameters::TARGET_32_LITTLE:
      dump_incremental_inputs<32, false>(
          argv[0], filename,
          static_cast<Sized_incremental_binary<32, false>*>(inc));
      break;
#endif
#ifdef HAVE_TARGET_32_BIG
    case Parameters::TARGET_32_BIG:
      dump_incremental_inputs<32, true>(
	  argv[0], filename,
          static_cast<Sized_incremental_binary<32, true>*>(inc));
      break;
#endif
#ifdef HAVE_TARGET_64_LITTLE
    case Parameters::TARGET_64_LITTLE:
      dump_incremental_inputs<64, false>(
	  argv[0], filename,
          static_cast<Sized_incremental_binary<64, false>*>(inc));
      break;
#endif
#ifdef HAVE_TARGET_64_BIG
    case Parameters::TARGET_64_BIG:
      dump_incremental_inputs<64, true>(
	  argv[0], filename,
          static_cast<Sized_incremental_binary<64, true>*>(inc));
      break;
#endif
    default:
      gold_unreachable();
    }

  return 0;
}
Commit	Line	Data
09ec0418	1	// incremental.cc -- incremental linking test/debug tool
e2b8f3c4	2
09ec0418	3	// Copyright 2009, 2010 Free Software Foundation, Inc.
e2b8f3c4 RÁE	4	// Written by Rafael Avila de Espindola <rafael.espindola@gmail.com>
	5
	6	// This file is part of gold.
	7
	8	// This program is free software; you can redistribute it and/or modify
	9	// it under the terms of the GNU General Public License as published by
	10	// the Free Software Foundation; either version 3 of the License, or
	11	// (at your option) any later version.
	12
	13	// This program is distributed in the hope that it will be useful,
	14	// but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	// GNU General Public License for more details.
	17
	18	// You should have received a copy of the GNU General Public License
	19	// along with this program; if not, write to the Free Software
	20	// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
	21	// MA 02110-1301, USA.
	22
	23
	24	// This file is a (still incomplete) test/debug tool that should display
	25	// all information available in the incremental linking sections in a
	26	// format that is easy to read.
	27	// Once the format is a bit more stable, this should probably be moved to
	28	// readelf. Because of that, the use of gold's data structures and functions
	29	// is just a short term convenience and not a design decision.
	30
	31	#include "gold.h"
	32
	33	#include <stdio.h>
	34	#include <errno.h>
09ec0418	35	#include <time.h>
e2b8f3c4 RÁE	36
	37	#include "incremental.h"
	38
	39	namespace gold
	40	{
	41	class Output_file;
	42	}
	43
	44	using namespace gold;
	45
09ec0418 CC	46	template<int size, bool big_endian>
	47	static typename Incremental_inputs_reader<size, big_endian>::
	48	Incremental_input_entry_reader
	49	find_input_containing_global(
	50	Incremental_inputs_reader<size, big_endian>& incremental_inputs,
	51	unsigned int offset,
	52	unsigned int* symndx)
	53	{
	54	typedef Incremental_inputs_reader<size, big_endian> Inputs_reader;
f038d496 CC	55	static const unsigned int global_sym_entry_size =
	56	Incremental_inputs_reader<size, big_endian>::global_sym_entry_size;
	57
09ec0418 CC	58	for (unsigned int i = 0; i < incremental_inputs.input_file_count(); ++i)
	59	{
	60	typename Inputs_reader::Incremental_input_entry_reader input_file =
	61	incremental_inputs.input_file(i);
	62	if (input_file.type() != INCREMENTAL_INPUT_OBJECT
	63	&& input_file.type() != INCREMENTAL_INPUT_ARCHIVE_MEMBER)
	64	continue;
	65	unsigned int nsyms = input_file.get_global_symbol_count();
	66	if (offset >= input_file.get_symbol_offset(0)
	67	&& offset < input_file.get_symbol_offset(nsyms))
	68	{
f038d496 CC	69	*symndx = ((offset - input_file.get_symbol_offset(0))
f038d496 CC	70	/ global_sym_entry_size);
09ec0418 CC	71	return input_file;
	72	}
	73	}
	74	gold_unreachable();
	75	}
	76
20b52f1a RÁE	77	template<int size, bool big_endian>
20b52f1a RÁE	78	static void
09ec0418	79	dump_incremental_inputs(const char* argv0, const char* filename,
b961d0d7	80	Sized_incremental_binary<size, big_endian>* inc)
e2b8f3c4	81	{
09ec0418 CC	82	typedef Incremental_binary::Location Location;
	83	typedef Incremental_binary::View View;
	84	typedef Incremental_inputs_reader<size, big_endian> Inputs_reader;
	85	typedef typename Inputs_reader::Incremental_input_entry_reader Entry_reader;
e2b8f3c4	86
b961d0d7	87	if (!inc->has_incremental_info())
e2b8f3c4	88	{
20b52f1a	89	fprintf(stderr, "%s: %s: no .gnu_incremental_inputs section\n", argv0,
e2b8f3c4	90	filename);
ca09d69a	91	exit(1);
e2b8f3c4 RÁE	92	}
e2b8f3c4 RÁE	93
09ec0418 CC	94	// Create a reader object for the .gnu_incremental_inputs section.
	95
	96	Incremental_inputs_reader<size, big_endian>
b961d0d7	97	incremental_inputs(inc->inputs_reader());
09ec0418	98
f038d496	99	if (incremental_inputs.version() != 2)
e2b8f3c4	100	{
20b52f1a	101	fprintf(stderr, "%s: %s: unknown incremental version %d\n", argv0,
09ec0418	102	filename, incremental_inputs.version());
20b52f1a	103	exit(1);
e2b8f3c4 RÁE	104	}
e2b8f3c4 RÁE	105
09ec0418 CC	106	const char* command_line = incremental_inputs.command_line();
09ec0418 CC	107	if (command_line == NULL)
e2b8f3c4 RÁE	108	{
e2b8f3c4 RÁE	109	fprintf(stderr,
09ec0418 CC	110	"%s: %s: failed to get link command line\n",
09ec0418 CC	111	argv0, filename);
20b52f1a	112	exit(1);
e2b8f3c4	113	}
09ec0418	114	printf("Link command line: %s\n", command_line);
e2b8f3c4	115
09ec0418 CC	116	printf("\nInput files:\n");
	117	for (unsigned int i = 0; i < incremental_inputs.input_file_count(); ++i)
	118	{
0e70b911	119	Entry_reader input_file = incremental_inputs.input_file(i);
e2b8f3c4	120
09ec0418 CC	121	const char* objname = input_file.filename();
	122	if (objname == NULL)
	123	{
	124	fprintf(stderr,"%s: %s: failed to get file name for object %u\n",
	125	argv0, filename, i);
	126	exit(1);
	127	}
	128	printf("[%d] %s\n", i, objname);
e2b8f3c4	129
09ec0418 CC	130	Timespec mtime = input_file.get_mtime();
	131	printf(" Timestamp: %llu.%09d %s",
	132	static_cast<unsigned long long>(mtime.seconds),
	133	mtime.nanoseconds,
	134	ctime(&mtime.seconds));
e2b8f3c4	135
cdc29364 CC	136	printf(" Serial Number: %d\n", input_file.arg_serial());
	137	printf(" In System Directory: %s\n",
	138	input_file.is_in_system_directory() ? "true" : "false");
	139
09ec0418 CC	140	Incremental_input_type input_type = input_file.type();
	141	printf(" Type: ");
	142	switch (input_type)
	143	{
	144	case INCREMENTAL_INPUT_OBJECT:
09ec0418	145	case INCREMENTAL_INPUT_ARCHIVE_MEMBER:
f0f9babf CC	146	printf("%s\n", (input_type == INCREMENTAL_INPUT_OBJECT
f0f9babf CC	147	? "Object" : "Archive member"));
c7975edd CC	148	printf(" Input section count: %d\n",
c7975edd CC	149	input_file.get_input_section_count());
f0f9babf	150	printf(" Global symbol count: %d\n",
c7975edd	151	input_file.get_global_symbol_count());
f0f9babf CC	152	printf(" Local symbol offset: %d\n",
	153	input_file.get_local_symbol_offset());
	154	printf(" Local symbol count: %d\n",
	155	input_file.get_local_symbol_count());
6fa2a40b CC	156	printf(" First dynamic reloc: %d\n",
	157	input_file.get_first_dyn_reloc());
	158	printf(" Dynamic reloc count: %d\n",
	159	input_file.get_dyn_reloc_count());
89d8a36b CC	160	printf(" COMDAT group count: %d\n",
89d8a36b CC	161	input_file.get_comdat_group_count());
09ec0418 CC	162	break;
09ec0418 CC	163	case INCREMENTAL_INPUT_ARCHIVE:
c7975edd CC	164	printf("Archive\n");
	165	printf(" Member count: %d\n", input_file.get_member_count());
	166	printf(" Unused symbol count: %d\n",
	167	input_file.get_unused_symbol_count());
09ec0418 CC	168	break;
09ec0418 CC	169	case INCREMENTAL_INPUT_SHARED_LIBRARY:
c7975edd	170	printf("Shared library\n");
0f1c85a6 CC	171	printf(" As needed: %s\n",
	172	input_file.as_needed() ? "true" : "false");
	173	printf(" soname: %s\n",
	174	input_file.get_soname());
c7975edd CC	175	printf(" Symbol count: %d\n",
c7975edd CC	176	input_file.get_global_symbol_count());
09ec0418 CC	177	break;
	178	case INCREMENTAL_INPUT_SCRIPT:
	179	printf("Linker script\n");
c7975edd	180	printf(" Object count: %d\n", input_file.get_object_count());
09ec0418 CC	181	break;
	182	default:
	183	fprintf(stderr, "%s: invalid file type for object %u: %d\n",
	184	argv0, i, input_type);
	185	exit(1);
	186	}
	187	}
	188
	189	printf("\nInput sections:\n");
	190	for (unsigned int i = 0; i < incremental_inputs.input_file_count(); ++i)
e2b8f3c4	191	{
09ec0418 CC	192	Entry_reader input_file(incremental_inputs.input_file(i));
	193
	194	if (input_file.type() != INCREMENTAL_INPUT_OBJECT
	195	&& input_file.type() != INCREMENTAL_INPUT_ARCHIVE_MEMBER)
	196	continue;
	197
	198	const char* objname = input_file.filename();
	199	if (objname == NULL)
	200	{
	201	fprintf(stderr,"%s: %s: failed to get file name for object %u\n",
	202	argv0, filename, i);
	203	exit(1);
	204	}
	205
	206	printf("[%d] %s\n", i, objname);
	207
	208	printf(" %3s %6s %8s %8s %s\n",
	209	"n", "outndx", "offset", "size", "name");
	210	unsigned int nsections = input_file.get_input_section_count();
	211	for (unsigned int shndx = 0; shndx < nsections; ++shndx)
	212	{
	213	typename Entry_reader::Input_section_info info(
	214	input_file.get_input_section(shndx));
cdc29364	215	printf(" %3d %6d %8lld %8lld %s\n", shndx + 1,
09ec0418 CC	216	info.output_shndx,
	217	static_cast<long long>(info.sh_offset),
	218	static_cast<long long>(info.sh_size),
	219	info.name);
	220	}
89d8a36b CC	221
	222	unsigned int ncomdat = input_file.get_comdat_group_count();
	223	for (unsigned int i = 0; i < ncomdat; ++i)
	224	printf(" Comdat group: %s\n",
	225	input_file.get_comdat_group_signature(i));
e2b8f3c4 RÁE	226	}
e2b8f3c4 RÁE	227
09ec0418 CC	228	// Get a view of the .symtab section.
09ec0418 CC	229
b961d0d7 CC	230	elfcpp::Elf_file<size, big_endian, Incremental_binary> elf_file(inc);
b961d0d7 CC	231
09ec0418 CC	232	unsigned int symtab_shndx = elf_file.find_section_by_type(elfcpp::SHT_SYMTAB);
09ec0418 CC	233	if (symtab_shndx == elfcpp::SHN_UNDEF) // Not found.
e2b8f3c4	234	{
09ec0418	235	fprintf(stderr, "%s: %s: no symbol table section\n", argv0, filename);
ca09d69a	236	exit(1);
09ec0418 CC	237	}
	238	Location symtab_location(elf_file.section_contents(symtab_shndx));
	239	View symtab_view(inc->view(symtab_location));
	240
	241	// Get a view of the .strtab section.
	242
	243	unsigned int strtab_shndx = elf_file.section_link(symtab_shndx);
	244	if (strtab_shndx == elfcpp::SHN_UNDEF
	245	\|\| strtab_shndx > elf_file.shnum()
	246	\|\| elf_file.section_type(strtab_shndx) != elfcpp::SHT_STRTAB)
	247	{
	248	fprintf(stderr, "%s: %s: no string table section\n", argv0, filename);
ca09d69a	249	exit(1);
09ec0418 CC	250	}
	251	Location strtab_location(elf_file.section_contents(strtab_shndx));
	252	View strtab_view(inc->view(strtab_location));
	253	elfcpp::Elf_strtab strtab(strtab_view.data(), strtab_location.data_size);
e2b8f3c4	254
09ec0418 CC	255	// The .gnu_incremental_symtab section contains entries that parallel
	256	// the global symbols of the main symbol table. The sh_info field
	257	// of the main symbol table's section header tells us how many global
	258	// symbols there are, but that count does not include any global
	259	// symbols that were forced local during the link. Therefore, we
	260	// use the size of the .gnu_incremental_symtab section to deduce
	261	// the number of global symbols + forced-local symbols there are
	262	// in the symbol table.
b961d0d7 CC	263	Incremental_symtab_reader<big_endian> isymtab(inc->symtab_reader());
b961d0d7 CC	264	Incremental_relocs_reader<size, big_endian> irelocs(inc->relocs_reader());
09ec0418 CC	265	unsigned int sym_size = elfcpp::Elf_sizes<size>::sym_size;
09ec0418 CC	266	unsigned int nsyms = symtab_location.data_size / sym_size;
b961d0d7	267	unsigned int nglobals = isymtab.symbol_count();
09ec0418	268	unsigned int first_global = nsyms - nglobals;
cdc29364 CC	269	unsigned const char* sym_p;
	270
	271	printf("\nGlobal symbols per input file:\n");
	272	for (unsigned int i = 0; i < incremental_inputs.input_file_count(); ++i)
	273	{
	274	Entry_reader input_file(incremental_inputs.input_file(i));
	275
	276	if (input_file.type() != INCREMENTAL_INPUT_OBJECT
	277	&& input_file.type() != INCREMENTAL_INPUT_ARCHIVE_MEMBER
	278	&& input_file.type() != INCREMENTAL_INPUT_SHARED_LIBRARY)
	279	continue;
	280
	281	const char* objname = input_file.filename();
	282	if (objname == NULL)
	283	{
	284	fprintf(stderr,"%s: %s: failed to get file name for object %u\n",
	285	argv0, filename, i);
	286	exit(1);
	287	}
	288
	289	printf("[%d] %s\n", i, objname);
	290
	291	unsigned int nsyms = input_file.get_global_symbol_count();
	292	if (nsyms > 0)
	293	printf(" %6s %6s %8s %8s %8s %8s\n",
	294	"outndx", "shndx", "offset", "chain", "#relocs", "rbase");
	295	if (input_file.type() == INCREMENTAL_INPUT_SHARED_LIBRARY)
	296	{
	297	for (unsigned int symndx = 0; symndx < nsyms; ++symndx)
	298	{
	299	bool is_def;
26d3c67d	300	bool is_copy;
cdc29364	301	unsigned int output_symndx =
26d3c67d	302	input_file.get_output_symbol_index(symndx, &is_def, &is_copy);
cdc29364 CC	303	sym_p = symtab_view.data() + output_symndx * sym_size;
	304	elfcpp::Sym<size, big_endian> sym(sym_p);
	305	const char* symname;
	306	if (!strtab.get_c_string(sym.get_st_name(), &symname))
	307	symname = "<unknown>";
	308	printf(" %6d %6s %8s %8s %8s %8s %-5s %s\n",
	309	output_symndx,
	310	"", "", "", "", "",
26d3c67d	311	is_copy ? "COPY" : (is_def ? "DEF" : "UNDEF"),
cdc29364 CC	312	symname);
	313	}
	314	}
	315	else
	316	{
	317	for (unsigned int symndx = 0; symndx < nsyms; ++symndx)
	318	{
	319	Incremental_global_symbol_reader<big_endian> info(
	320	input_file.get_global_symbol_reader(symndx));
	321	unsigned int output_symndx = info.output_symndx();
	322	sym_p = symtab_view.data() + output_symndx * sym_size;
	323	elfcpp::Sym<size, big_endian> sym(sym_p);
	324	const char* symname;
	325	if (!strtab.get_c_string(sym.get_st_name(), &symname))
	326	symname = "<unknown>";
	327	printf(" %6d %6d %8d %8d %8d %8d %-5s %s\n",
	328	output_symndx,
5146f448	329	info.shndx() == -1U ? -1 : info.shndx(),
cdc29364 CC	330	input_file.get_symbol_offset(symndx),
	331	info.next_offset(),
	332	info.reloc_count(),
	333	info.reloc_offset(),
5146f448 CC	334	(info.shndx() == -1U
	335	? "BASE"
	336	: info.shndx() == 0 ? "UNDEF" : "DEF"),
cdc29364 CC	337	symname);
	338	}
	339	}
	340	}
09ec0418	341
cdc29364	342	sym_p = symtab_view.data() + first_global * sym_size;
09ec0418 CC	343	printf("\nGlobal symbol table:\n");
	344	for (unsigned int i = 0; i < nglobals; i++)
	345	{
	346	elfcpp::Sym<size, big_endian> sym(sym_p);
	347	const char* symname;
	348	if (!strtab.get_c_string(sym.get_st_name(), &symname))
	349	symname = "<unknown>";
	350	printf("[%d] %s\n", first_global + i, symname);
	351	unsigned int offset = isymtab.get_list_head(i);
	352	while (offset > 0)
e2b8f3c4	353	{
09ec0418 CC	354	unsigned int sym_ndx;
	355	Entry_reader input_file =
	356	find_input_containing_global<size, big_endian>(incremental_inputs,
	357	offset, &sym_ndx);
cdc29364 CC	358	Incremental_global_symbol_reader<big_endian> sym_info(
cdc29364 CC	359	input_file.get_global_symbol_reader(sym_ndx));
09ec0418	360	printf(" %s (first reloc: %d, reloc count: %d)",
cdc29364 CC	361	input_file.filename(), sym_info.reloc_offset(),
	362	sym_info.reloc_count());
	363	if (sym_info.output_symndx() != first_global + i)
	364	printf(" wrong output symndx (%d) ", sym_info.output_symndx());
09ec0418 CC	365	printf("\n");
09ec0418 CC	366	// Dump the relocations from this input file for this symbol.
cdc29364 CC	367	unsigned int r_off = sym_info.reloc_offset();
cdc29364 CC	368	for (unsigned int j = 0; j < sym_info.reloc_count(); j++)
09ec0418	369	{
cdc29364	370	printf(" %4d relocation type %3d shndx %2d"
09ec0418 CC	371	" offset %016llx addend %016llx %s\n",
	372	r_off,
	373	irelocs.get_r_type(r_off),
	374	irelocs.get_r_shndx(r_off),
	375	static_cast<long long>(irelocs.get_r_offset(r_off)),
	376	static_cast<long long>(irelocs.get_r_addend(r_off)),
	377	symname);
	378	r_off += irelocs.reloc_size;
	379	}
cdc29364	380	offset = sym_info.next_offset();
09ec0418 CC	381	}
09ec0418 CC	382	sym_p += sym_size;
e2b8f3c4	383	}
09ec0418	384
b961d0d7	385	Incremental_got_plt_reader<big_endian> igot_plt(inc->got_plt_reader());
0e70b911 CC	386	unsigned int ngot = igot_plt.get_got_entry_count();
	387	unsigned int nplt = igot_plt.get_plt_entry_count();
	388
	389	printf("\nGOT entries:\n");
	390	for (unsigned int i = 0; i < ngot; ++i)
	391	{
	392	unsigned int got_type = igot_plt.get_got_type(i);
6fa2a40b CC	393	unsigned int got_symndx = igot_plt.get_got_symndx(i);
6fa2a40b CC	394	unsigned int got_input_index = igot_plt.get_got_input_index(i);
0e70b911	395	printf("[%d] type %02x, ", i, got_type & 0x7f);
4829d394	396	if ((got_type & 0x7f) == 0x7f)
0e70b911 CC	397	printf("reserved");
	398	else if (got_type & 0x80)
	399	{
6fa2a40b CC	400	Entry_reader input_file =
6fa2a40b CC	401	incremental_inputs.input_file(got_input_index);
0e70b911	402	const char* objname = input_file.filename();
6fa2a40b	403	printf("local: %s (%d)", objname, got_symndx);
0e70b911 CC	404	}
	405	else
	406	{
6fa2a40b	407	sym_p = symtab_view.data() + got_symndx * sym_size;
0e70b911 CC	408	elfcpp::Sym<size, big_endian> sym(sym_p);
	409	const char* symname;
	410	if (!strtab.get_c_string(sym.get_st_name(), &symname))
	411	symname = "<unknown>";
6fa2a40b	412	printf("global %s (%d)", symname, got_symndx);
0e70b911 CC	413	}
	414	printf("\n");
	415	}
	416
	417	printf("\nPLT entries:\n");
	418	for (unsigned int i = 0; i < nplt; ++i)
	419	{
	420	unsigned int plt_desc = igot_plt.get_plt_desc(i);
	421	printf("[%d] ", i);
	422	sym_p = symtab_view.data() + plt_desc * sym_size;
	423	elfcpp::Sym<size, big_endian> sym(sym_p);
	424	const char* symname;
	425	if (!strtab.get_c_string(sym.get_st_name(), &symname))
	426	symname = "<unknown>";
	427	printf("%s (%d)\n", symname, plt_desc);
	428	}
	429
09ec0418 CC	430	printf("\nUnused archive symbols:\n");
	431	for (unsigned int i = 0; i < incremental_inputs.input_file_count(); ++i)
	432	{
	433	Entry_reader input_file(incremental_inputs.input_file(i));
	434
	435	if (input_file.type() != INCREMENTAL_INPUT_ARCHIVE)
	436	continue;
	437
	438	const char* objname = input_file.filename();
	439	if (objname == NULL)
	440	{
	441	fprintf(stderr,"%s: %s: failed to get file name for object %u\n",
	442	argv0, filename, i);
	443	exit(1);
	444	}
	445
	446	printf("[%d] %s\n", i, objname);
	447	unsigned int nsyms = input_file.get_unused_symbol_count();
	448	for (unsigned int symndx = 0; symndx < nsyms; ++symndx)
	449	printf(" %s\n", input_file.get_unused_symbol(symndx));
	450	}
	451
20b52f1a RÁE	452	}
	453
	454	int
	455	main(int argc, char** argv)
	456	{
	457	if (argc != 2)
	458	{
	459	fprintf(stderr, "Usage: %s <file>\n", argv[0]);
	460	return 1;
	461	}
	462	const char* filename = argv[1];
	463
	464	Output_file* file = new Output_file(filename);
	465
aa92d6ed	466	bool t = file->open_base_file(NULL, false);
20b52f1a RÁE	467	if (!t)
20b52f1a RÁE	468	{
aa92d6ed	469	fprintf(stderr, "%s: open_base_file(%s): %s\n", argv[0], filename,
20b52f1a RÁE	470	strerror(errno));
	471	return 1;
	472	}
	473
	474	Incremental_binary* inc = open_incremental_binary(file);
	475
	476	if (inc == NULL)
	477	{
	478	fprintf(stderr, "%s: open_incremental_binary(%s): %s\n", argv[0],
	479	filename, strerror(errno));
	480	return 1;
	481	}
	482
	483	switch (parameters->size_and_endianness())
	484	{
	485	#ifdef HAVE_TARGET_32_LITTLE
	486	case Parameters::TARGET_32_LITTLE:
b961d0d7 CC	487	dump_incremental_inputs<32, false>(
	488	argv[0], filename,
	489	static_cast<Sized_incremental_binary<32, false>*>(inc));
20b52f1a RÁE	490	break;
	491	#endif
	492	#ifdef HAVE_TARGET_32_BIG
	493	case Parameters::TARGET_32_BIG:
b961d0d7 CC	494	dump_incremental_inputs<32, true>(
	495	argv[0], filename,
	496	static_cast<Sized_incremental_binary<32, true>*>(inc));
20b52f1a RÁE	497	break;
	498	#endif
	499	#ifdef HAVE_TARGET_64_LITTLE
	500	case Parameters::TARGET_64_LITTLE:
b961d0d7 CC	501	dump_incremental_inputs<64, false>(
	502	argv[0], filename,
	503	static_cast<Sized_incremental_binary<64, false>*>(inc));
20b52f1a RÁE	504	break;
	505	#endif
	506	#ifdef HAVE_TARGET_64_BIG
	507	case Parameters::TARGET_64_BIG:
b961d0d7 CC	508	dump_incremental_inputs<64, true>(
	509	argv[0], filename,
	510	static_cast<Sized_incremental_binary<64, true>*>(inc));
20b52f1a RÁE	511	break;
	512	#endif
	513	default:
	514	gold_unreachable();
	515	}
e2b8f3c4 RÁE	516
	517	return 0;
	518	}