[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)) / 20;
	  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() != 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));

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