[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;
  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)) / 16;
	  return input_file;
	}
    }
  gold_unreachable();
}

template<int size, bool big_endian>
static void
dump_incremental_inputs(const char* argv0, const char* filename,
			Incremental_binary* inc)
{
  bool t;
  unsigned int inputs_shndx;
  unsigned int isymtab_shndx;
  unsigned int irelocs_shndx;
  unsigned int igot_plt_shndx;
  unsigned int istrtab_shndx;
  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;

  // Find the .gnu_incremental_inputs, _symtab, _relocs, and _strtab sections.

  t = inc->find_incremental_inputs_sections(&inputs_shndx, &isymtab_shndx,
					    &irelocs_shndx, &igot_plt_shndx,
					    &istrtab_shndx);
  if (!t)
    {
      fprintf(stderr, "%s: %s: no .gnu_incremental_inputs section\n", argv0,
              filename);
      exit(1);
    }

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

  // Get a view of the .gnu_incremental_inputs section.

  Location inputs_location(elf_file.section_contents(inputs_shndx));
  View inputs_view(inc->view(inputs_location));

  // Get the .gnu_incremental_strtab section as a string table.

  Location istrtab_location(elf_file.section_contents(istrtab_shndx));
  View istrtab_view(inc->view(istrtab_location));
  elfcpp::Elf_strtab istrtab(istrtab_view.data(), istrtab_location.data_size);

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

  Incremental_inputs_reader<size, big_endian>
      incremental_inputs(inputs_view.data(), istrtab);

  if (incremental_inputs.version() != 1)
    {
      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));

      Incremental_input_type input_type = input_file.type();
      printf("    Type: ");
      switch (input_type)
	{
	case INCREMENTAL_INPUT_OBJECT:
	  printf("Object\n");
	  printf("    Input section count: %d\n",
		 input_file.get_input_section_count());
	  printf("    Symbol count: %d\n",
		 input_file.get_global_symbol_count());
	  break;
	case INCREMENTAL_INPUT_ARCHIVE_MEMBER:
	  printf("Archive member\n");
	  printf("    Input section count: %d\n",
		 input_file.get_input_section_count());
	  printf("    Symbol count: %d\n",
		 input_file.get_global_symbol_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("    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,
		 info.output_shndx,
		 static_cast<long long>(info.sh_offset),
		 static_cast<long long>(info.sh_size),
		 info.name);
	}
    }

  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)
	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  %8s  %8s  %8s  %8s\n",
	       "outndx", "offset", "chain", "#relocs", "rbase");
      for (unsigned int symndx = 0; symndx < nsyms; ++symndx)
	{
	  typename Entry_reader::Global_symbol_info info(
	      input_file.get_global_symbol_info(symndx));
	  printf("    %6d  %8d  %8d  %8d  %8d\n",
		 info.output_symndx,
		 input_file.get_symbol_offset(symndx),
		 info.next_offset,
		 info.reloc_count,
		 info.reloc_offset);
	}
    }

  // Get a view of the .symtab section.

  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);

  // Get a view of the .gnu_incremental_symtab section.

  Location isymtab_location(elf_file.section_contents(isymtab_shndx));
  View isymtab_view(inc->view(isymtab_location));

  // Get a view of the .gnu_incremental_relocs section.

  Location irelocs_location(elf_file.section_contents(irelocs_shndx));
  View irelocs_view(inc->view(irelocs_location));

  // 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.
  unsigned int sym_size = elfcpp::Elf_sizes<size>::sym_size;
  unsigned int nsyms = symtab_location.data_size / sym_size;
  unsigned int nglobals = isymtab_location.data_size / 4;
  unsigned int first_global = nsyms - nglobals;
  unsigned const char* sym_p = symtab_view.data() + first_global * sym_size;
  unsigned const char* isym_p = isymtab_view.data();

  Incremental_symtab_reader<big_endian> isymtab(isymtab_view.data());
  Incremental_relocs_reader<size, big_endian> irelocs(irelocs_view.data());

  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);
	  typename Entry_reader::Global_symbol_info sym_info(
	      input_file.get_global_symbol_info(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 %d"
		     "  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;
      isym_p += 4;
    }

  // Get a view of the .gnu_incremental_got_plt section.

  Location igot_plt_location(elf_file.section_contents(igot_plt_shndx));
  View igot_plt_view(inc->view(igot_plt_location));

  Incremental_got_plt_reader<big_endian> igot_plt(igot_plt_view.data());
  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_desc = igot_plt.get_got_desc(i);
      printf("[%d] type %02x, ", i, got_type & 0x7f);
      if (got_type == 0x7f)
	printf("reserved");
      else if (got_type & 0x80)
	{
	  Entry_reader input_file = incremental_inputs.input_file(got_desc);
	  const char* objname = input_file.filename();
	  printf("local: %s (%d)", objname, got_desc);
	}
      else
	{
	  sym_p = symtab_view.data() + got_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("global %s (%d)", symname, got_desc);
	}
      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_for_modification();
  if (!t)
    {
      fprintf(stderr, "%s: open_for_modification(%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, inc);
      break;
#endif
#ifdef HAVE_TARGET_32_BIG
    case Parameters::TARGET_32_BIG:
      dump_incremental_inputs<32, true>(argv[0], filename, inc);
      break;
#endif
#ifdef HAVE_TARGET_64_LITTLE
    case Parameters::TARGET_64_LITTLE:
      dump_incremental_inputs<64, false>(argv[0], filename, inc);
      break;
#endif
#ifdef HAVE_TARGET_64_BIG
    case Parameters::TARGET_64_BIG:
      dump_incremental_inputs<64, true>(argv[0], filename, 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;
	55	for (unsigned int i = 0; i < incremental_inputs.input_file_count(); ++i)
	56	{
	57	typename Inputs_reader::Incremental_input_entry_reader input_file =
	58	incremental_inputs.input_file(i);
	59	if (input_file.type() != INCREMENTAL_INPUT_OBJECT
	60	&& input_file.type() != INCREMENTAL_INPUT_ARCHIVE_MEMBER)
	61	continue;
	62	unsigned int nsyms = input_file.get_global_symbol_count();
	63	if (offset >= input_file.get_symbol_offset(0)
	64	&& offset < input_file.get_symbol_offset(nsyms))
	65	{
	66	*symndx = (offset - input_file.get_symbol_offset(0)) / 16;
	67	return input_file;
	68	}
	69	}
	70	gold_unreachable();
	71	}
	72
20b52f1a RÁE	73	template<int size, bool big_endian>
20b52f1a RÁE	74	static void
09ec0418 CC	75	dump_incremental_inputs(const char* argv0, const char* filename,
09ec0418 CC	76	Incremental_binary* inc)
e2b8f3c4	77	{
20b52f1a	78	bool t;
09ec0418 CC	79	unsigned int inputs_shndx;
	80	unsigned int isymtab_shndx;
	81	unsigned int irelocs_shndx;
0e70b911	82	unsigned int igot_plt_shndx;
09ec0418 CC	83	unsigned int istrtab_shndx;
	84	typedef Incremental_binary::Location Location;
	85	typedef Incremental_binary::View View;
	86	typedef Incremental_inputs_reader<size, big_endian> Inputs_reader;
	87	typedef typename Inputs_reader::Incremental_input_entry_reader Entry_reader;
e2b8f3c4	88
09ec0418 CC	89	// Find the .gnu_incremental_inputs, _symtab, _relocs, and _strtab sections.
	90
	91	t = inc->find_incremental_inputs_sections(&inputs_shndx, &isymtab_shndx,
0e70b911 CC	92	&irelocs_shndx, &igot_plt_shndx,
0e70b911 CC	93	&istrtab_shndx);
e2b8f3c4 RÁE	94	if (!t)
e2b8f3c4 RÁE	95	{
20b52f1a	96	fprintf(stderr, "%s: %s: no .gnu_incremental_inputs section\n", argv0,
e2b8f3c4	97	filename);
ca09d69a	98	exit(1);
e2b8f3c4 RÁE	99	}
e2b8f3c4 RÁE	100
09ec0418	101	elfcpp::Elf_file<size, big_endian, Incremental_binary> elf_file(inc);
e2b8f3c4	102
09ec0418	103	// Get a view of the .gnu_incremental_inputs section.
e2b8f3c4	104
09ec0418 CC	105	Location inputs_location(elf_file.section_contents(inputs_shndx));
09ec0418 CC	106	View inputs_view(inc->view(inputs_location));
e2b8f3c4	107
09ec0418 CC	108	// Get the .gnu_incremental_strtab section as a string table.
	109
	110	Location istrtab_location(elf_file.section_contents(istrtab_shndx));
	111	View istrtab_view(inc->view(istrtab_location));
	112	elfcpp::Elf_strtab istrtab(istrtab_view.data(), istrtab_location.data_size);
	113
	114	// Create a reader object for the .gnu_incremental_inputs section.
	115
	116	Incremental_inputs_reader<size, big_endian>
	117	incremental_inputs(inputs_view.data(), istrtab);
	118
	119	if (incremental_inputs.version() != 1)
e2b8f3c4	120	{
20b52f1a	121	fprintf(stderr, "%s: %s: unknown incremental version %d\n", argv0,
09ec0418	122	filename, incremental_inputs.version());
20b52f1a	123	exit(1);
e2b8f3c4 RÁE	124	}
e2b8f3c4 RÁE	125
09ec0418 CC	126	const char* command_line = incremental_inputs.command_line();
09ec0418 CC	127	if (command_line == NULL)
e2b8f3c4 RÁE	128	{
e2b8f3c4 RÁE	129	fprintf(stderr,
09ec0418 CC	130	"%s: %s: failed to get link command line\n",
09ec0418 CC	131	argv0, filename);
20b52f1a	132	exit(1);
e2b8f3c4	133	}
09ec0418	134	printf("Link command line: %s\n", command_line);
e2b8f3c4	135
09ec0418 CC	136	printf("\nInput files:\n");
	137	for (unsigned int i = 0; i < incremental_inputs.input_file_count(); ++i)
	138	{
0e70b911	139	Entry_reader input_file = incremental_inputs.input_file(i);
e2b8f3c4	140
09ec0418 CC	141	const char* objname = input_file.filename();
	142	if (objname == NULL)
	143	{
	144	fprintf(stderr,"%s: %s: failed to get file name for object %u\n",
	145	argv0, filename, i);
	146	exit(1);
	147	}
	148	printf("[%d] %s\n", i, objname);
e2b8f3c4	149
09ec0418 CC	150	Timespec mtime = input_file.get_mtime();
	151	printf(" Timestamp: %llu.%09d %s",
	152	static_cast<unsigned long long>(mtime.seconds),
	153	mtime.nanoseconds,
	154	ctime(&mtime.seconds));
e2b8f3c4	155
09ec0418 CC	156	Incremental_input_type input_type = input_file.type();
	157	printf(" Type: ");
	158	switch (input_type)
	159	{
	160	case INCREMENTAL_INPUT_OBJECT:
c7975edd CC	161	printf("Object\n");
	162	printf(" Input section count: %d\n",
	163	input_file.get_input_section_count());
	164	printf(" Symbol count: %d\n",
	165	input_file.get_global_symbol_count());
09ec0418 CC	166	break;
09ec0418 CC	167	case INCREMENTAL_INPUT_ARCHIVE_MEMBER:
c7975edd CC	168	printf("Archive member\n");
	169	printf(" Input section count: %d\n",
	170	input_file.get_input_section_count());
	171	printf(" Symbol count: %d\n",
	172	input_file.get_global_symbol_count());
09ec0418 CC	173	break;
09ec0418 CC	174	case INCREMENTAL_INPUT_ARCHIVE:
c7975edd CC	175	printf("Archive\n");
	176	printf(" Member count: %d\n", input_file.get_member_count());
	177	printf(" Unused symbol count: %d\n",
	178	input_file.get_unused_symbol_count());
09ec0418 CC	179	break;
09ec0418 CC	180	case INCREMENTAL_INPUT_SHARED_LIBRARY:
c7975edd CC	181	printf("Shared library\n");
	182	printf(" Symbol count: %d\n",
	183	input_file.get_global_symbol_count());
09ec0418 CC	184	break;
	185	case INCREMENTAL_INPUT_SCRIPT:
	186	printf("Linker script\n");
c7975edd	187	printf(" Object count: %d\n", input_file.get_object_count());
09ec0418 CC	188	break;
	189	default:
	190	fprintf(stderr, "%s: invalid file type for object %u: %d\n",
	191	argv0, i, input_type);
	192	exit(1);
	193	}
	194	}
	195
	196	printf("\nInput sections:\n");
	197	for (unsigned int i = 0; i < incremental_inputs.input_file_count(); ++i)
e2b8f3c4	198	{
09ec0418 CC	199	Entry_reader input_file(incremental_inputs.input_file(i));
	200
	201	if (input_file.type() != INCREMENTAL_INPUT_OBJECT
	202	&& input_file.type() != INCREMENTAL_INPUT_ARCHIVE_MEMBER)
	203	continue;
	204
	205	const char* objname = input_file.filename();
	206	if (objname == NULL)
	207	{
	208	fprintf(stderr,"%s: %s: failed to get file name for object %u\n",
	209	argv0, filename, i);
	210	exit(1);
	211	}
	212
	213	printf("[%d] %s\n", i, objname);
	214
	215	printf(" %3s %6s %8s %8s %s\n",
	216	"n", "outndx", "offset", "size", "name");
	217	unsigned int nsections = input_file.get_input_section_count();
	218	for (unsigned int shndx = 0; shndx < nsections; ++shndx)
	219	{
	220	typename Entry_reader::Input_section_info info(
	221	input_file.get_input_section(shndx));
	222	printf(" %3d %6d %8lld %8lld %s\n", shndx,
	223	info.output_shndx,
	224	static_cast<long long>(info.sh_offset),
	225	static_cast<long long>(info.sh_size),
	226	info.name);
	227	}
e2b8f3c4 RÁE	228	}
e2b8f3c4 RÁE	229
09ec0418 CC	230	printf("\nGlobal symbols per input file:\n");
	231	for (unsigned int i = 0; i < incremental_inputs.input_file_count(); ++i)
	232	{
09ec0418 CC	233	Entry_reader input_file(incremental_inputs.input_file(i));
	234
	235	if (input_file.type() != INCREMENTAL_INPUT_OBJECT
	236	&& input_file.type() != INCREMENTAL_INPUT_ARCHIVE_MEMBER)
	237	continue;
	238
	239	const char* objname = input_file.filename();
	240	if (objname == NULL)
	241	{
	242	fprintf(stderr,"%s: %s: failed to get file name for object %u\n",
	243	argv0, filename, i);
	244	exit(1);
	245	}
	246
	247	printf("[%d] %s\n", i, objname);
	248
	249	unsigned int nsyms = input_file.get_global_symbol_count();
	250	if (nsyms > 0)
	251	printf(" %6s %8s %8s %8s %8s\n",
	252	"outndx", "offset", "chain", "#relocs", "rbase");
	253	for (unsigned int symndx = 0; symndx < nsyms; ++symndx)
	254	{
	255	typename Entry_reader::Global_symbol_info info(
	256	input_file.get_global_symbol_info(symndx));
	257	printf(" %6d %8d %8d %8d %8d\n",
	258	info.output_symndx,
	259	input_file.get_symbol_offset(symndx),
	260	info.next_offset,
	261	info.reloc_count,
	262	info.reloc_offset);
	263	}
	264	}
	265
	266	// Get a view of the .symtab section.
	267
	268	unsigned int symtab_shndx = elf_file.find_section_by_type(elfcpp::SHT_SYMTAB);
	269	if (symtab_shndx == elfcpp::SHN_UNDEF) // Not found.
e2b8f3c4	270	{
09ec0418	271	fprintf(stderr, "%s: %s: no symbol table section\n", argv0, filename);
ca09d69a	272	exit(1);
09ec0418 CC	273	}
	274	Location symtab_location(elf_file.section_contents(symtab_shndx));
	275	View symtab_view(inc->view(symtab_location));
	276
	277	// Get a view of the .strtab section.
	278
	279	unsigned int strtab_shndx = elf_file.section_link(symtab_shndx);
	280	if (strtab_shndx == elfcpp::SHN_UNDEF
	281	\|\| strtab_shndx > elf_file.shnum()
	282	\|\| elf_file.section_type(strtab_shndx) != elfcpp::SHT_STRTAB)
	283	{
	284	fprintf(stderr, "%s: %s: no string table section\n", argv0, filename);
ca09d69a	285	exit(1);
09ec0418 CC	286	}
	287	Location strtab_location(elf_file.section_contents(strtab_shndx));
	288	View strtab_view(inc->view(strtab_location));
	289	elfcpp::Elf_strtab strtab(strtab_view.data(), strtab_location.data_size);
e2b8f3c4	290
09ec0418 CC	291	// Get a view of the .gnu_incremental_symtab section.
	292
	293	Location isymtab_location(elf_file.section_contents(isymtab_shndx));
	294	View isymtab_view(inc->view(isymtab_location));
	295
	296	// Get a view of the .gnu_incremental_relocs section.
	297
	298	Location irelocs_location(elf_file.section_contents(irelocs_shndx));
	299	View irelocs_view(inc->view(irelocs_location));
	300
	301	// The .gnu_incremental_symtab section contains entries that parallel
	302	// the global symbols of the main symbol table. The sh_info field
	303	// of the main symbol table's section header tells us how many global
	304	// symbols there are, but that count does not include any global
	305	// symbols that were forced local during the link. Therefore, we
	306	// use the size of the .gnu_incremental_symtab section to deduce
	307	// the number of global symbols + forced-local symbols there are
	308	// in the symbol table.
	309	unsigned int sym_size = elfcpp::Elf_sizes<size>::sym_size;
	310	unsigned int nsyms = symtab_location.data_size / sym_size;
	311	unsigned int nglobals = isymtab_location.data_size / 4;
	312	unsigned int first_global = nsyms - nglobals;
	313	unsigned const char* sym_p = symtab_view.data() + first_global * sym_size;
	314	unsigned const char* isym_p = isymtab_view.data();
	315
	316	Incremental_symtab_reader<big_endian> isymtab(isymtab_view.data());
	317	Incremental_relocs_reader<size, big_endian> irelocs(irelocs_view.data());
	318
	319	printf("\nGlobal symbol table:\n");
	320	for (unsigned int i = 0; i < nglobals; i++)
	321	{
	322	elfcpp::Sym<size, big_endian> sym(sym_p);
	323	const char* symname;
	324	if (!strtab.get_c_string(sym.get_st_name(), &symname))
	325	symname = "<unknown>";
	326	printf("[%d] %s\n", first_global + i, symname);
	327	unsigned int offset = isymtab.get_list_head(i);
	328	while (offset > 0)
e2b8f3c4	329	{
09ec0418 CC	330	unsigned int sym_ndx;
	331	Entry_reader input_file =
	332	find_input_containing_global<size, big_endian>(incremental_inputs,
	333	offset, &sym_ndx);
	334	typename Entry_reader::Global_symbol_info sym_info(
	335	input_file.get_global_symbol_info(sym_ndx));
	336	printf(" %s (first reloc: %d, reloc count: %d)",
	337	input_file.filename(), sym_info.reloc_offset,
	338	sym_info.reloc_count);
	339	if (sym_info.output_symndx != first_global + i)
	340	printf(" wrong output symndx (%d) ", sym_info.output_symndx);
	341	printf("\n");
	342	// Dump the relocations from this input file for this symbol.
	343	unsigned int r_off = sym_info.reloc_offset;
	344	for (unsigned int j = 0; j < sym_info.reloc_count; j++)
	345	{
	346	printf(" %4d relocation type %3d shndx %d"
	347	" offset %016llx addend %016llx %s\n",
	348	r_off,
	349	irelocs.get_r_type(r_off),
	350	irelocs.get_r_shndx(r_off),
	351	static_cast<long long>(irelocs.get_r_offset(r_off)),
	352	static_cast<long long>(irelocs.get_r_addend(r_off)),
	353	symname);
	354	r_off += irelocs.reloc_size;
	355	}
	356	offset = sym_info.next_offset;
	357	}
	358	sym_p += sym_size;
	359	isym_p += 4;
e2b8f3c4	360	}
09ec0418	361
0e70b911 CC	362	// Get a view of the .gnu_incremental_got_plt section.
	363
	364	Location igot_plt_location(elf_file.section_contents(igot_plt_shndx));
	365	View igot_plt_view(inc->view(igot_plt_location));
	366
	367	Incremental_got_plt_reader<big_endian> igot_plt(igot_plt_view.data());
	368	unsigned int ngot = igot_plt.get_got_entry_count();
	369	unsigned int nplt = igot_plt.get_plt_entry_count();
	370
	371	printf("\nGOT entries:\n");
	372	for (unsigned int i = 0; i < ngot; ++i)
	373	{
	374	unsigned int got_type = igot_plt.get_got_type(i);
	375	unsigned int got_desc = igot_plt.get_got_desc(i);
	376	printf("[%d] type %02x, ", i, got_type & 0x7f);
	377	if (got_type == 0x7f)
	378	printf("reserved");
	379	else if (got_type & 0x80)
	380	{
	381	Entry_reader input_file = incremental_inputs.input_file(got_desc);
	382	const char* objname = input_file.filename();
	383	printf("local: %s (%d)", objname, got_desc);
	384	}
	385	else
	386	{
	387	sym_p = symtab_view.data() + got_desc * sym_size;
	388	elfcpp::Sym<size, big_endian> sym(sym_p);
	389	const char* symname;
	390	if (!strtab.get_c_string(sym.get_st_name(), &symname))
	391	symname = "<unknown>";
	392	printf("global %s (%d)", symname, got_desc);
	393	}
	394	printf("\n");
	395	}
	396
	397	printf("\nPLT entries:\n");
	398	for (unsigned int i = 0; i < nplt; ++i)
	399	{
	400	unsigned int plt_desc = igot_plt.get_plt_desc(i);
	401	printf("[%d] ", i);
	402	sym_p = symtab_view.data() + plt_desc * sym_size;
	403	elfcpp::Sym<size, big_endian> sym(sym_p);
	404	const char* symname;
	405	if (!strtab.get_c_string(sym.get_st_name(), &symname))
	406	symname = "<unknown>";
	407	printf("%s (%d)\n", symname, plt_desc);
	408	}
	409
09ec0418 CC	410	printf("\nUnused archive symbols:\n");
	411	for (unsigned int i = 0; i < incremental_inputs.input_file_count(); ++i)
	412	{
	413	Entry_reader input_file(incremental_inputs.input_file(i));
	414
	415	if (input_file.type() != INCREMENTAL_INPUT_ARCHIVE)
	416	continue;
	417
	418	const char* objname = input_file.filename();
	419	if (objname == NULL)
	420	{
	421	fprintf(stderr,"%s: %s: failed to get file name for object %u\n",
	422	argv0, filename, i);
	423	exit(1);
	424	}
	425
	426	printf("[%d] %s\n", i, objname);
	427	unsigned int nsyms = input_file.get_unused_symbol_count();
	428	for (unsigned int symndx = 0; symndx < nsyms; ++symndx)
	429	printf(" %s\n", input_file.get_unused_symbol(symndx));
	430	}
	431
20b52f1a RÁE	432	}
	433
	434	int
	435	main(int argc, char** argv)
	436	{
	437	if (argc != 2)
	438	{
	439	fprintf(stderr, "Usage: %s <file>\n", argv[0]);
	440	return 1;
	441	}
	442	const char* filename = argv[1];
	443
	444	Output_file* file = new Output_file(filename);
	445
	446	bool t = file->open_for_modification();
	447	if (!t)
	448	{
	449	fprintf(stderr, "%s: open_for_modification(%s): %s\n", argv[0], filename,
	450	strerror(errno));
	451	return 1;
	452	}
	453
	454	Incremental_binary* inc = open_incremental_binary(file);
	455
	456	if (inc == NULL)
	457	{
	458	fprintf(stderr, "%s: open_incremental_binary(%s): %s\n", argv[0],
	459	filename, strerror(errno));
	460	return 1;
	461	}
	462
	463	switch (parameters->size_and_endianness())
	464	{
	465	#ifdef HAVE_TARGET_32_LITTLE
	466	case Parameters::TARGET_32_LITTLE:
	467	dump_incremental_inputs<32, false>(argv[0], filename, inc);
	468	break;
	469	#endif
	470	#ifdef HAVE_TARGET_32_BIG
	471	case Parameters::TARGET_32_BIG:
	472	dump_incremental_inputs<32, true>(argv[0], filename, inc);
	473	break;
	474	#endif
	475	#ifdef HAVE_TARGET_64_LITTLE
	476	case Parameters::TARGET_64_LITTLE:
	477	dump_incremental_inputs<64, false>(argv[0], filename, inc);
	478	break;
	479	#endif
	480	#ifdef HAVE_TARGET_64_BIG
	481	case Parameters::TARGET_64_BIG:
	482	dump_incremental_inputs<64, true>(argv[0], filename, inc);
	483	break;
	484	#endif
	485	default:
	486	gold_unreachable();
	487	}
e2b8f3c4 RÁE	488
	489	return 0;
	490	}