aboutsummaryrefslogtreecommitdiff
path: root/gdb/xcoffexec.c
AgeCommit message (Expand)AuthorFilesLines
1994-01-27 Fix many sins which will come up in 32 bit x 64 bit GDB, andJim Kingdon1-0/+1
1993-11-01Change the stream argument to _filtered to GDB_FILE *.Thomas Lord1-6/+6
1993-10-12 * xcoffsolib.h, xcoffexec.c: Undo the part of Fred's bfd->abfdJim Kingdon1-17/+17
1993-10-08 * osfsolib.c, remote-sim.c, remote.c, solib.c, xcoffexec.c,Fred Fish1-29/+29
1993-09-28Tue Sep 28 09:45:38 1993 Peter Schauer (pes@regent.e-technik.tu-muenchen.de)Jim Kingdon1-3/+5
1993-09-01bzero -> memsetK. Richard Pixley1-1/+1
1993-08-09 * gdbcore.h: New variable gnutarget.Jim Kingdon1-3/+3
1993-07-27 * breakpoint.c (breakpoint_1): Walk the breakpoint chain to decide ifPeter Schauer1-1/+8
1993-06-13 * defs.h, main.c (catch_errors): Add return_mask arg.Jim Kingdon1-1/+2
1993-04-22 * objfiles.h (obj_section), objfiles.c (build_objfile_section_table):Jim Kingdon1-4/+35
1993-04-20 * xcoffexec.c (xcoff_relocate_core): If no exec file, error()Jim Kingdon1-1/+7
1993-04-02 * stabsread.c (patch_block_stabs): If stab & no symbol, makeJim Kingdon1-3/+3
1993-03-30Tue Mar 30 08:06:24 1993 Jim Kingdon (kingdon@cygnus.com)Jim Kingdon1-6/+10
1993-03-26 * Clean up xcoff relocation.Jim Kingdon1-146/+30
1993-03-18 * xcoffexec.c (exec_close): Don't close exec_bfd twice.Jim Kingdon1-4/+3
1993-03-17 * xcoffexec.c (add_vmap): Wrap symbol read in catch_errors.Jim Kingdon1-4/+18
1993-03-12Fri Mar 12 09:33:23 1993 Jim Kingdon (kingdon@cygnus.com)Jim Kingdon1-124/+191
1993-02-27* xcoffexec.c (vmap_ldinfo): Fix "/" for '/' typo, reportedJohn Gilmore1-1/+1
1993-02-11* stabsread.c (rs6000_builtin_type): Move function fromJohn Gilmore1-6/+6
1993-01-05 * xcoffexec.c (vmap_symtab): Use new macros to access minimalFred Fish1-3/+4
1992-12-23 * defs.h (STRCMP, STREQ, STREQN): New macros.Fred Fish1-10/+8
1992-11-19 * infcmd.c (set_environment_command): Avoid skipping firstJohn Gilmore1-9/+10
1992-10-06NOTICE_SIGNAL_HANDLING_CHANGE macro added to the target vector asK. Richard Pixley1-0/+1
1992-09-25 * xcoffexec.c (exec_ops): child_attach and child_create_inferiorK. Richard Pixley1-3/+2
1992-09-22Break the thread of control that implies that a unix childJohn Gilmore1-0/+1
1992-09-18Remove convert_{to,from}_virtual members from target structs.John Gilmore1-1/+1
1992-08-29RS/6000 portability changes (for hosting cross-debuggers).John Gilmore1-11/+1
1992-06-17* xcoffexec.c: Remove ' from comment.Stu Grossman1-1/+1
1992-06-16 * xcoffexec.c (map_vmap): Turn comment into a real C comment.Fred Fish1-3/+3
1992-05-09* xcoffexec.c (vmap_exec): Don't assume .text and .data are theStu Grossman1-12/+17
1992-04-17Fix to dwarfread.c to target pointer and target long sizes, fixes forFred Fish1-0/+1
1992-04-03 * munch: Must pre-pend "_" to "initialize" for SYSV style nm.Per Bothner1-0/+22
1992-03-29Create and use macros for iterating on symtabs, psymtabs, msymbols.John Gilmore1-56/+5
1992-03-29Merged in latest RS6000 diffs from Metin G. Ozisik.Per Bothner1-52/+70
1992-03-21Many changes, most related to creating entry point information on a per-objfileFred Fish1-0/+1
1992-03-18Changes to implement the -mapped and -readnow options for commands thatFred Fish1-1/+1
1992-03-13Mostly merged in changes from IBM (Metin); see ChangeLog.Per Bothner1-77/+147
1992-03-09 * symfile.h: Add prototype for iterate_over_msymbols().Fred Fish1-2/+3
1992-03-03Tue Mar 3 15:11:52 1992 Michael Tiemann (tiemann@cygnus.com)Michael Tiemann1-2/+2
1992-03-02 * rs6000-xdep.c (frame_initial_stack_address): MovePer Bothner1-3/+0
1992-03-02More changes, mostly from IBM for rs6000. (See ChangeLog.)Per Bothner1-0/+3
1992-02-29Mostly rs6000 changes from IBM.Per Bothner1-55/+76
1992-02-22* Check in Fred Fish's changes in these modules. FredJohn Gilmore1-55/+81
1992-02-21* core.c, eval.c, exec.c, inftarg.c, remote-adapt.c, remote-eb.c,John Gilmore1-2/+2
1991-12-04* Makefile.in: VERSION 4.2.96.John Gilmore1-1/+1
1991-11-21Add /* */ to #if 0'd thing to help ANSI.John Gilmore1-2/+2
1991-11-21* defs.h: Incorporate param.h. All users changed.John Gilmore1-1/+0
1991-11-12* rs6000-pinsn.c, rs6000-tdep.c, rs6000-xdep.c, tm-rs6000.h,John Gilmore1-0/+932
generated by cgit v1.1 at 2025-01-14 18:31:26 +0000
='n610' href='#n610'>610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 
/* PEF support for BFD.
   Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
   2009, 2011  Free Software Foundation, Inc.

   This file is part of BFD, the Binary File Descriptor library.

   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.  */

/* PEF (Preferred Executable Format) is the binary file format for late
   classic Mac OS versions (before Darwin).  It is supported by both m68k
   and PowerPc.  It is also called CFM (Code Fragment Manager).  */

#include "sysdep.h"
#include "safe-ctype.h"
#include "pef.h"
#include "pef-traceback.h"
#include "bfd.h"
#include "libbfd.h"
#include "libiberty.h"

#ifndef BFD_IO_FUNCS
#define BFD_IO_FUNCS 0
#endif

#define bfd_pef_close_and_cleanup                   _bfd_generic_close_and_cleanup
#define bfd_pef_bfd_free_cached_info                _bfd_generic_bfd_free_cached_info
#define bfd_pef_new_section_hook                    _bfd_generic_new_section_hook
#define bfd_pef_bfd_is_local_label_name             bfd_generic_is_local_label_name
#define bfd_pef_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define bfd_pef_get_lineno                          _bfd_nosymbols_get_lineno
#define bfd_pef_find_nearest_line                   _bfd_nosymbols_find_nearest_line
#define bfd_pef_find_inliner_info                   _bfd_nosymbols_find_inliner_info
#define bfd_pef_bfd_make_debug_symbol               _bfd_nosymbols_bfd_make_debug_symbol
#define bfd_pef_read_minisymbols                    _bfd_generic_read_minisymbols
#define bfd_pef_minisymbol_to_symbol                _bfd_generic_minisymbol_to_symbol
#define bfd_pef_set_arch_mach                       _bfd_generic_set_arch_mach
#define bfd_pef_get_section_contents                _bfd_generic_get_section_contents
#define bfd_pef_set_section_contents                _bfd_generic_set_section_contents
#define bfd_pef_bfd_get_relocated_section_contents  bfd_generic_get_relocated_section_contents
#define bfd_pef_bfd_relax_section                   bfd_generic_relax_section
#define bfd_pef_bfd_gc_sections                     bfd_generic_gc_sections
#define bfd_pef_bfd_lookup_section_flags            bfd_generic_lookup_section_flags
#define bfd_pef_bfd_merge_sections                  bfd_generic_merge_sections
#define bfd_pef_bfd_is_group_section		    bfd_generic_is_group_section
#define bfd_pef_bfd_discard_group                   bfd_generic_discard_group
#define bfd_pef_section_already_linked	            _bfd_generic_section_already_linked
#define bfd_pef_bfd_define_common_symbol            bfd_generic_define_common_symbol
#define bfd_pef_bfd_link_hash_table_create          _bfd_generic_link_hash_table_create
#define bfd_pef_bfd_link_hash_table_free            _bfd_generic_link_hash_table_free
#define bfd_pef_bfd_link_add_symbols                _bfd_generic_link_add_symbols
#define bfd_pef_bfd_link_just_syms                  _bfd_generic_link_just_syms
#define bfd_pef_bfd_copy_link_hash_symbol_type \
  _bfd_generic_copy_link_hash_symbol_type
#define bfd_pef_bfd_final_link                      _bfd_generic_final_link
#define bfd_pef_bfd_link_split_section              _bfd_generic_link_split_section
#define bfd_pef_get_section_contents_in_window      _bfd_generic_get_section_contents_in_window

static int
bfd_pef_parse_traceback_table (bfd *abfd,
			       asection *section,
			       unsigned char *buf,
			       size_t len,
			       size_t pos,
			       asymbol *sym,
			       FILE *file)
{
  struct traceback_table table;
  size_t offset;
  const char *s;
  asymbol tmpsymbol;

  if (sym == NULL)
    sym = & tmpsymbol;

  sym->name = NULL;
  sym->value = 0;
  sym->the_bfd = abfd;
  sym->section = section;
  sym->flags = 0;
  sym->udata.i = 0;

  /* memcpy is fine since all fields are unsigned char.  */
  if ((pos + 8) > len)
    return -1;
  memcpy (&table, buf + pos, 8);

  /* Calling code relies on returned symbols having a name and
     correct offset.  */
  if ((table.lang != TB_C) && (table.lang != TB_CPLUSPLUS))
    return -1;

  if (! (table.flags2 & TB_NAME_PRESENT))
    return -1;

  if (! (table.flags1 & TB_HAS_TBOFF))
    return -1;

  offset = 8;

  if ((table.flags5 & TB_FLOATPARAMS) || (table.fixedparams))
    offset += 4;

  if (table.flags1 & TB_HAS_TBOFF)
    {
      struct traceback_table_tboff off;

      if ((pos + offset + 4) > len)
	return -1;
      off.tb_offset = bfd_getb32 (buf + pos + offset);
      offset += 4;

      /* Need to subtract 4 because the offset includes the 0x0L
	 preceding the table.  */
      if (file != NULL)
	fprintf (file, " [offset = 0x%lx]", off.tb_offset);

      if ((file == NULL) && ((off.tb_offset + 4) > (pos + offset)))
	return -1;

      sym->value = pos - off.tb_offset - 4;
    }

  if (table.flags2 & TB_INT_HNDL)
    offset += 4;

  if (table.flags1 & TB_HAS_CTL)
    {
      struct traceback_table_anchors anchors;

      if ((pos + offset + 4) > len)
	return -1;
      anchors.ctl_info = bfd_getb32 (buf + pos + offset);
      offset += 4;

      if (anchors.ctl_info > 1024)
	return -1;

      offset += anchors.ctl_info * 4;
    }

  if (table.flags2 & TB_NAME_PRESENT)
    {
      struct traceback_table_routine name;
      char *namebuf;

      if ((pos + offset + 2) > len)
	return -1;
      name.name_len = bfd_getb16 (buf + pos + offset);
      offset += 2;

      if (name.name_len > 4096)
	return -1;

      if ((pos + offset + name.name_len) > len)
	return -1;

      namebuf = bfd_alloc (abfd, name.name_len + 1);
      if (namebuf == NULL)
	return -1;

      memcpy (namebuf, buf + pos + offset, name.name_len);
      namebuf[name.name_len] = '\0';

      /* Strip leading period inserted by compiler.  */
      if (namebuf[0] == '.')
	memmove (namebuf, namebuf + 1, name.name_len + 1);

      sym->name = namebuf;

      for (s = sym->name; (*s != '\0'); s++)
	if (! ISPRINT (*s))
	  return -1;

      offset += name.name_len;
    }

  if (table.flags2 & TB_USES_ALLOCA)
    offset += 4;

  if (table.flags4 & TB_HAS_VEC_INFO)
    offset += 4;

  if (file != NULL)
    fprintf (file, " [length = 0x%lx]", (unsigned long) offset);

  return offset;
}

static void
bfd_pef_print_symbol (bfd *abfd,
		      void * afile,
		      asymbol *symbol,
		      bfd_print_symbol_type how)
{
  FILE *file = (FILE *) afile;

  switch (how)
    {
    case bfd_print_symbol_name:
      fprintf (file, "%s", symbol->name);
      break;
    default:
      bfd_print_symbol_vandf (abfd, (void *) file, symbol);
      fprintf (file, " %-5s %s", symbol->section->name, symbol->name);
      if (CONST_STRNEQ (symbol->name, "__traceback_"))
	{
	  unsigned char *buf = alloca (symbol->udata.i);
	  size_t offset = symbol->value + 4;
	  size_t len = symbol->udata.i;
	  int ret;

	  bfd_get_section_contents (abfd, symbol->section, buf, offset, len);
	  ret = bfd_pef_parse_traceback_table (abfd, symbol->section, buf,
					       len, 0, NULL, file);
	  if (ret < 0)
	    fprintf (file, " [ERROR]");
	}
    }
}

static void
bfd_pef_convert_architecture (unsigned long architecture,
			      enum bfd_architecture *type,
			      unsigned long *subtype)
{
  const unsigned long ARCH_POWERPC = 0x70777063; /* 'pwpc'.  */
  const unsigned long ARCH_M68K = 0x6d36386b; /* 'm68k'.  */

  *subtype = bfd_arch_unknown;
  *type = bfd_arch_unknown;

  if (architecture == ARCH_POWERPC)
    *type = bfd_arch_powerpc;
  else if (architecture == ARCH_M68K)
    *type = bfd_arch_m68k;
}

static bfd_boolean
bfd_pef_mkobject (bfd *abfd ATTRIBUTE_UNUSED)
{
  return TRUE;
}

static const char *bfd_pef_section_name (bfd_pef_section *section)
{
  switch (section->section_kind)
    {
    case BFD_PEF_SECTION_CODE: return "code";
    case BFD_PEF_SECTION_UNPACKED_DATA: return "unpacked-data";
    case BFD_PEF_SECTION_PACKED_DATA: return "packed-data";
    case BFD_PEF_SECTION_CONSTANT: return "constant";
    case BFD_PEF_SECTION_LOADER: return "loader";
    case BFD_PEF_SECTION_DEBUG: return "debug";
    case BFD_PEF_SECTION_EXEC_DATA: return "exec-data";
    case BFD_PEF_SECTION_EXCEPTION: return "exception";
    case BFD_PEF_SECTION_TRACEBACK: return "traceback";
    default: return "unknown";
    }
}

static unsigned long bfd_pef_section_flags (bfd_pef_section *section)
{
  switch (section->section_kind)
    {
    case BFD_PEF_SECTION_CODE:
      return SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_CODE;
    case BFD_PEF_SECTION_UNPACKED_DATA:
    case BFD_PEF_SECTION_PACKED_DATA:
    case BFD_PEF_SECTION_CONSTANT:
    case BFD_PEF_SECTION_LOADER:
    case BFD_PEF_SECTION_DEBUG:
    case BFD_PEF_SECTION_EXEC_DATA:
    case BFD_PEF_SECTION_EXCEPTION:
    case BFD_PEF_SECTION_TRACEBACK:
    default:
      return SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC;
    }
}

static asection *
bfd_pef_make_bfd_section (bfd *abfd, bfd_pef_section *section)
{
  asection *bfdsec;
  const char *name = bfd_pef_section_name (section);

  bfdsec = bfd_make_section_anyway (abfd, name);
  if (bfdsec == NULL)
    return NULL;

  bfdsec->vma = section->default_address + section->container_offset;
  bfdsec->lma = section->default_address + section->container_offset;
  bfdsec->size = section->container_length;
  bfdsec->filepos = section->container_offset;
  bfdsec->alignment_power = section->alignment;

  bfdsec->flags = bfd_pef_section_flags (section);

  return bfdsec;
}

int
bfd_pef_parse_loader_header (bfd *abfd ATTRIBUTE_UNUSED,
			     unsigned char *buf,
			     size_t len,
			     bfd_pef_loader_header *header)
{
  BFD_ASSERT (len == 56);

  header->main_section = bfd_getb32 (buf);
  header->main_offset = bfd_getb32 (buf + 4);
  header->init_section = bfd_getb32 (buf + 8);
  header->init_offset = bfd_getb32 (buf + 12);
  header->term_section = bfd_getb32 (buf + 16);
  header->term_offset = bfd_getb32 (buf + 20);
  header->imported_library_count = bfd_getb32 (buf + 24);
  header->total_imported_symbol_count = bfd_getb32 (buf + 28);
  header->reloc_section_count = bfd_getb32 (buf + 32);
  header->reloc_instr_offset = bfd_getb32 (buf + 36);
  header->loader_strings_offset = bfd_getb32 (buf + 40);
  header->export_hash_offset = bfd_getb32 (buf + 44);
  header->export_hash_table_power = bfd_getb32 (buf + 48);
  header->exported_symbol_count = bfd_getb32 (buf + 52);

  return 0;
}

int
bfd_pef_parse_imported_library (bfd *abfd ATTRIBUTE_UNUSED,
				unsigned char *buf,
				size_t len,
				bfd_pef_imported_library *header)
{
  BFD_ASSERT (len == 24);

  header->name_offset = bfd_getb32 (buf);
  header->old_implementation_version = bfd_getb32 (buf + 4);
  header->current_version = bfd_getb32 (buf + 8);
  header->imported_symbol_count = bfd_getb32 (buf + 12);
  header->first_imported_symbol = bfd_getb32 (buf + 16);
  header->options = buf[20];
  header->reserved_a = buf[21];
  header->reserved_b = bfd_getb16 (buf + 22);

  return 0;
}

int
bfd_pef_parse_imported_symbol (bfd *abfd ATTRIBUTE_UNUSED,
			       unsigned char *buf,
			       size_t len,
			       bfd_pef_imported_symbol *symbol)
{
  unsigned long value;

  BFD_ASSERT (len == 4);

  value = bfd_getb32 (buf);
  symbol->symbol_class = value >> 24;
  symbol->name = value & 0x00ffffff;

  return 0;
}

int
bfd_pef_scan_section (bfd *abfd, bfd_pef_section *section)
{
  unsigned char buf[28];

  bfd_seek (abfd, section->header_offset, SEEK_SET);
  if (bfd_bread ((void *) buf, 28, abfd) != 28)
    return -1;

  section->name_offset = bfd_h_get_32 (abfd, buf);
  section->default_address = bfd_h_get_32 (abfd, buf + 4);
  section->total_length = bfd_h_get_32 (abfd, buf + 8);
  section->unpacked_length = bfd_h_get_32 (abfd, buf + 12);
  section->container_length = bfd_h_get_32 (abfd, buf + 16);
  section->container_offset = bfd_h_get_32 (abfd, buf + 20);
  section->section_kind = buf[24];
  section->share_kind = buf[25];
  section->alignment = buf[26];
  section->reserved = buf[27];

  section->bfd_section = bfd_pef_make_bfd_section (abfd, section);
  if (section->bfd_section == NULL)
    return -1;

  return 0;
}

void
bfd_pef_print_loader_header (bfd *abfd ATTRIBUTE_UNUSED,
			     bfd_pef_loader_header *header,
			     FILE *file)
{
  fprintf (file, "main_section: %ld\n", header->main_section);
  fprintf (file, "main_offset: %lu\n", header->main_offset);
  fprintf (file, "init_section: %ld\n", header->init_section);
  fprintf (file, "init_offset: %lu\n", header->init_offset);
  fprintf (file, "term_section: %ld\n", header->term_section);
  fprintf (file, "term_offset: %lu\n", header->term_offset);
  fprintf (file, "imported_library_count: %lu\n",
	   header->imported_library_count);
  fprintf (file, "total_imported_symbol_count: %lu\n",
	   header->total_imported_symbol_count);
  fprintf (file, "reloc_section_count: %lu\n", header->reloc_section_count);
  fprintf (file, "reloc_instr_offset: %lu\n", header->reloc_instr_offset);
  fprintf (file, "loader_strings_offset: %lu\n",
	   header->loader_strings_offset);
  fprintf (file, "export_hash_offset: %lu\n", header->export_hash_offset);
  fprintf (file, "export_hash_table_power: %lu\n",
	   header->export_hash_table_power);
  fprintf (file, "exported_symbol_count: %lu\n",
	   header->exported_symbol_count);
}

int
bfd_pef_print_loader_section (bfd *abfd, FILE *file)
{
  bfd_pef_loader_header header;
  asection *loadersec = NULL;
  unsigned char *loaderbuf = NULL;
  size_t loaderlen = 0;

  loadersec = bfd_get_section_by_name (abfd, "loader");
  if (loadersec == NULL)
    return -1;

  loaderlen = loadersec->size;
  loaderbuf = bfd_malloc (loaderlen);

  if (bfd_seek (abfd, loadersec->filepos, SEEK_SET) < 0
      || bfd_bread ((void *) loaderbuf, loaderlen, abfd) != loaderlen
      || loaderlen < 56
      || bfd_pef_parse_loader_header (abfd, loaderbuf, 56, &header) < 0)
    {
      free (loaderbuf);
      return -1;
    }

  bfd_pef_print_loader_header (abfd, &header, file);
  return 0;
}

int
bfd_pef_scan_start_address (bfd *abfd)
{
  bfd_pef_loader_header header;
  asection *section;

  asection *loadersec = NULL;
  unsigned char *loaderbuf = NULL;
  size_t loaderlen = 0;
  int ret;

  loadersec = bfd_get_section_by_name (abfd, "loader");
  if (loadersec == NULL)
    goto end;

  loaderlen = loadersec->size;
  loaderbuf = bfd_malloc (loaderlen);
  if (bfd_seek (abfd, loadersec->filepos, SEEK_SET) < 0)
    goto error;
  if (bfd_bread ((void *) loaderbuf, loaderlen, abfd) != loaderlen)
    goto error;

  if (loaderlen < 56)
    goto error;
  ret = bfd_pef_parse_loader_header (abfd, loaderbuf, 56, &header);
  if (ret < 0)
    goto error;

  if (header.main_section < 0)
    goto end;

  for (section = abfd->sections; section != NULL; section = section->next)
    if ((section->index + 1) == header.main_section)
      break;

  if (section == NULL)
    goto error;

  abfd->start_address = section->vma + header.main_offset;

 end:
  if (loaderbuf != NULL)
    free (loaderbuf);
  return 0;

 error:
  if (loaderbuf != NULL)
    free (loaderbuf);
  return -1;
}

int
bfd_pef_scan (abfd, header, mdata)
     bfd *abfd;
     bfd_pef_header *header;
     bfd_pef_data_struct *mdata;
{
  unsigned int i;
  enum bfd_architecture cputype;
  unsigned long cpusubtype;

  mdata->header = *header;

  bfd_pef_convert_architecture (header->architecture, &cputype, &cpusubtype);
  if (cputype == bfd_arch_unknown)
    {
      (*_bfd_error_handler) (_("bfd_pef_scan: unknown architecture 0x%lx"),
			       header->architecture);
      return -1;
    }
  bfd_set_arch_mach (abfd, cputype, cpusubtype);

  mdata->header = *header;

  abfd->flags = (abfd->xvec->object_flags
		 | (abfd->flags & (BFD_IN_MEMORY | BFD_IO_FUNCS)));

  if (header->section_count != 0)
    {
      mdata->sections = bfd_alloc (abfd, header->section_count * sizeof (bfd_pef_section));

      if (mdata->sections == NULL)
	return -1;

      for (i = 0; i < header->section_count; i++)
	{
	  bfd_pef_section *cur = &mdata->sections[i];
	  cur->header_offset = 40 + (i * 28);
	  if (bfd_pef_scan_section (abfd, cur) < 0)
	    return -1;
	}
    }

  if (bfd_pef_scan_start_address (abfd) < 0)
    return -1;

  abfd->tdata.pef_data = mdata;

  return 0;
}

static int
bfd_pef_read_header (bfd *abfd, bfd_pef_header *header)
{
  unsigned char buf[40];

  bfd_seek (abfd, 0, SEEK_SET);

  if (bfd_bread ((void *) buf, 40, abfd) != 40)
    return -1;

  header->tag1 = bfd_getb32 (buf);
  header->tag2 = bfd_getb32 (buf + 4);
  header->architecture = bfd_getb32 (buf + 8);
  header->format_version = bfd_getb32 (buf + 12);
  header->timestamp = bfd_getb32 (buf + 16);
  header->old_definition_version = bfd_getb32 (buf + 20);
  header->old_implementation_version = bfd_getb32 (buf + 24);
  header->current_version = bfd_getb32 (buf + 28);
  header->section_count = bfd_getb32 (buf + 32) + 1;
  header->instantiated_section_count = bfd_getb32 (buf + 34);
  header->reserved = bfd_getb32 (buf + 36);

  return 0;
}

static const bfd_target *
bfd_pef_object_p (bfd *abfd)
{
  struct bfd_preserve preserve;
  bfd_pef_header header;

  preserve.marker = NULL;
  if (bfd_pef_read_header (abfd, &header) != 0)
    goto wrong;

  if (header.tag1 != BFD_PEF_TAG1 || header.tag2 != BFD_PEF_TAG2)
    goto wrong;

  preserve.marker = bfd_zalloc (abfd, sizeof (bfd_pef_data_struct));
  if (preserve.marker == NULL
      || !bfd_preserve_save (abfd, &preserve))
    goto fail;

  if (bfd_pef_scan (abfd, &header,
		    (bfd_pef_data_struct *) preserve.marker) != 0)
    goto wrong;

  bfd_preserve_finish (abfd, &preserve);
  return abfd->xvec;

 wrong:
  bfd_set_error (bfd_error_wrong_format);

 fail:
  if (preserve.marker != NULL)
    bfd_preserve_restore (abfd, &preserve);
  return NULL;
}

static int
bfd_pef_parse_traceback_tables (bfd *abfd,
				asection *sec,
				unsigned char *buf,
				size_t len,
				long *nsym,
				asymbol **csym)
{
  char *name;

  asymbol function;
  asymbol traceback;

  const char *const tbprefix = "__traceback_";
  size_t tbnamelen;

  size_t pos = 0;
  unsigned long count = 0;
  int ret;

  for (;;)
    {
      /* We're reading symbols two at a time.  */
      if (csym && ((csym[count] == NULL) || (csym[count + 1] == NULL)))
	break;

      pos += 3;
      pos -= (pos % 4);

      while ((pos + 4) <= len)
	{
	  if (bfd_getb32 (buf + pos) == 0)
	    break;
	  pos += 4;
	}

      if ((pos + 4) > len)
	break;

      ret = bfd_pef_parse_traceback_table (abfd, sec, buf, len, pos + 4,
					   &function, 0);
      if (ret < 0)
	{
	  /* Skip over 0x0L to advance to next possible traceback table.  */
	  pos += 4;
	  continue;
	}

      BFD_ASSERT (function.name != NULL);

      /* Don't bother to compute the name if we are just
	 counting symbols.  */
      if (csym)
	{
	  tbnamelen = strlen (tbprefix) + strlen (function.name);
	  name = bfd_alloc (abfd, tbnamelen + 1);
	  if (name == NULL)
	    {
	      bfd_release (abfd, (void *) function.name);
	      function.name = NULL;
	      break;
	    }
	  snprintf (name, tbnamelen + 1, "%s%s", tbprefix, function.name);
	  traceback.name = name;
	  traceback.value = pos;
	  traceback.the_bfd = abfd;
	  traceback.section = sec;
	  traceback.flags = 0;
	  traceback.udata.i = ret;

	  *(csym[count]) = function;
	  *(csym[count + 1]) = traceback;
	}

      pos += ret;
      count += 2;
    }

  *nsym = count;
  return 0;
}

static int
bfd_pef_parse_function_stub (bfd *abfd ATTRIBUTE_UNUSED,
			     unsigned char *buf,
			     size_t len,
			     unsigned long *offset)
{
  BFD_ASSERT (len == 24);

  if ((bfd_getb32 (buf) & 0xffff0000) != 0x81820000)
    return -1;
  if (bfd_getb32 (buf + 4) != 0x90410014)
    return -1;
  if (bfd_getb32 (buf + 8) != 0x800c0000)
    return -1;
  if (bfd_getb32 (buf + 12) != 0x804c0004)
    return -1;
  if (bfd_getb32 (buf + 16) != 0x7c0903a6)
    return -1;
  if (bfd_getb32 (buf + 20) != 0x4e800420)
    return -1;

  if (offset != NULL)
    *offset = (bfd_getb32 (buf) & 0x0000ffff) / 4;

  return 0;
}

static int
bfd_pef_parse_function_stubs (bfd *abfd,
			      asection *codesec,
			      unsigned char *codebuf,
			      size_t codelen,
			      unsigned char *loaderbuf,
			      size_t loaderlen,
			      unsigned long *nsym,
			      asymbol **csym)
{
  const char *const sprefix = "__stub_";
  size_t codepos = 0;
  unsigned long count = 0;
  bfd_pef_loader_header header;
  bfd_pef_imported_library *libraries = NULL;
  bfd_pef_imported_symbol *imports = NULL;
  unsigned long i;
  int ret;

  if (loaderlen < 56)
    goto error;

  ret = bfd_pef_parse_loader_header (abfd, loaderbuf, 56, &header);
  if (ret < 0)
    goto error;

  libraries = bfd_malloc
    (header.imported_library_count * sizeof (bfd_pef_imported_library));
  imports = bfd_malloc
    (header.total_imported_symbol_count * sizeof (bfd_pef_imported_symbol));

  if (loaderlen < (56 + (header.imported_library_count * 24)))
    goto error;
  for (i = 0; i < header.imported_library_count; i++)
    {
      ret = bfd_pef_parse_imported_library
	(abfd, loaderbuf + 56 + (i * 24), 24, &libraries[i]);
      if (ret < 0)
	goto error;
    }

  if (loaderlen < (56 + (header.imported_library_count * 24)
		   + (header.total_imported_symbol_count * 4)))
    goto error;
  for (i = 0; i < header.total_imported_symbol_count; i++)
    {
      ret = (bfd_pef_parse_imported_symbol
	     (abfd,
	      loaderbuf + 56 + (header.imported_library_count * 24) + (i * 4),
	      4, &imports[i]));
      if (ret < 0)
	goto error;
    }

  codepos = 0;

  for (;;)
    {
      asymbol sym;
      const char *symname;
      char *name;
      unsigned long sym_index;

      if (csym && (csym[count] == NULL))
	break;

      codepos += 3;
      codepos -= (codepos % 4);

      while ((codepos + 4) <= codelen)
	{
	  if ((bfd_getb32 (codebuf + codepos) & 0xffff0000) == 0x81820000)
	    break;
	  codepos += 4;
	}

      if ((codepos + 4) > codelen)
	break;

      ret = bfd_pef_parse_function_stub (abfd, codebuf + codepos, 24, &sym_index);
      if (ret < 0)
	{
	  codepos += 24;
	  continue;
	}

      if (sym_index >= header.total_imported_symbol_count)
	{
	  codepos += 24;
	  continue;
	}

      {
	size_t max, namelen;
	const char *s;

	if (loaderlen < (header.loader_strings_offset + imports[sym_index].name))
	  goto error;

	max = loaderlen - (header.loader_strings_offset + imports[sym_index].name);
	symname = (char *) loaderbuf;
	symname += header.loader_strings_offset + imports[sym_index].name;
	namelen = 0;
	for (s = symname; s < (symname + max); s++)
	  {
	    if (*s == '\0')
	      break;
	    if (! ISPRINT (*s))
	      goto error;
	    namelen++;
	  }
	if (*s != '\0')
	  goto error;

	name = bfd_alloc (abfd, strlen (sprefix) + namelen + 1);
	if (name == NULL)
	  break;

	snprintf (name, strlen (sprefix) + namelen + 1, "%s%s",
		  sprefix, symname);
	sym.name = name;
      }

      sym.value = codepos;
      sym.the_bfd = abfd;
      sym.section = codesec;
      sym.flags = 0;
      sym.udata.i = 0;

      codepos += 24;

      if (csym != NULL)
	*(csym[count]) = sym;

      count++;
    }

  goto end;

 end:
  if (libraries != NULL)
    free (libraries);
  if (imports != NULL)
    free (imports);
  *nsym = count;
  return 0;

 error:
  if (libraries != NULL)
    free (libraries);
  if (imports != NULL)
    free (imports);
  *nsym = count;
  return -1;
}

static long
bfd_pef_parse_symbols (bfd *abfd, asymbol **csym)
{
  unsigned long count = 0;

  asection *codesec = NULL;
  unsigned char *codebuf = NULL;
  size_t codelen = 0;

  asection *loadersec = NULL;
  unsigned char *loaderbuf = NULL;
  size_t loaderlen = 0;

  codesec = bfd_get_section_by_name (abfd, "code");
  if (codesec != NULL)
    {
      codelen = codesec->size;
      codebuf = bfd_malloc (codelen);
      if (bfd_seek (abfd, codesec->filepos, SEEK_SET) < 0)
	goto end;
      if (bfd_bread ((void *) codebuf, codelen, abfd) != codelen)
	goto end;
    }

  loadersec = bfd_get_section_by_name (abfd, "loader");
  if (loadersec != NULL)
    {
      loaderlen = loadersec->size;
      loaderbuf = bfd_malloc (loaderlen);
      if (bfd_seek (abfd, loadersec->filepos, SEEK_SET) < 0)
	goto end;
      if (bfd_bread ((void *) loaderbuf, loaderlen, abfd) != loaderlen)
	goto end;
    }

  count = 0;
  if (codesec != NULL)
    {
      long ncount = 0;
      bfd_pef_parse_traceback_tables (abfd, codesec, codebuf, codelen,
				      &ncount, csym);
      count += ncount;
    }

  if ((codesec != NULL) && (loadersec != NULL))
    {
      unsigned long ncount = 0;
      bfd_pef_parse_function_stubs
	(abfd, codesec, codebuf, codelen, loaderbuf, loaderlen, &ncount,
	 (csym != NULL) ? (csym + count) : NULL);
      count += ncount;
    }

  if (csym != NULL)
    csym[count] = NULL;

 end:
  if (codebuf != NULL)
    free (codebuf);

  if (loaderbuf != NULL)
    free (loaderbuf);

  return count;
}

static long
bfd_pef_count_symbols (bfd *abfd)
{
  return bfd_pef_parse_symbols (abfd, NULL);
}

static long
bfd_pef_get_symtab_upper_bound (bfd *abfd)
{
  long nsyms = bfd_pef_count_symbols (abfd);

  if (nsyms < 0)
    return nsyms;
  return ((nsyms + 1) * sizeof (asymbol *));
}

static long
bfd_pef_canonicalize_symtab (bfd *abfd, asymbol **alocation)
{
  long i;
  asymbol *syms;
  long ret;
  long nsyms = bfd_pef_count_symbols (abfd);

  if (nsyms < 0)
    return nsyms;

  syms = bfd_alloc (abfd, nsyms * sizeof (asymbol));
  if (syms == NULL)
    return -1;

  for (i = 0; i < nsyms; i++)
    alocation[i] = &syms[i];

  alocation[nsyms] = NULL;

  ret = bfd_pef_parse_symbols (abfd, alocation);
  if (ret != nsyms)
    return 0;

  return ret;
}

#define bfd_pef_make_empty_symbol _bfd_generic_make_empty_symbol

static void
bfd_pef_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
			 asymbol *symbol,
			 symbol_info *ret)
{
  bfd_symbol_info (symbol, ret);
}

static int
bfd_pef_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
			struct bfd_link_info *info ATTRIBUTE_UNUSED)
{
  return 0;
}

const bfd_target pef_vec =
{
  "pef",			/* Name.  */
  bfd_target_pef_flavour,	/* Flavour.  */
  BFD_ENDIAN_BIG,		/* Byteorder.  */
  BFD_ENDIAN_BIG,		/* Header_byteorder.  */
  (HAS_RELOC | EXEC_P |		/* Object flags.  */
   HAS_LINENO | HAS_DEBUG |
   HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
  (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE | SEC_DATA
   | SEC_ROM | SEC_HAS_CONTENTS), /* Section_flags.  */
  0,				/* Symbol_leading_char.  */
  ' ',				/* AR_pad_char.  */
  16,				/* AR_max_namelen.  */
  0,				/* match priority.  */
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
  bfd_getb32, bfd_getb_signed_32, bfd_putb32,
  bfd_getb16, bfd_getb_signed_16, bfd_putb16,	/* Data.  */
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
  bfd_getb32, bfd_getb_signed_32, bfd_putb32,
  bfd_getb16, bfd_getb_signed_16, bfd_putb16,	/* Headers.  */
  {				/* bfd_check_format.  */
    _bfd_dummy_target,
    bfd_pef_object_p,		/* bfd_check_format.  */
    _bfd_dummy_target,
    _bfd_dummy_target,
  },
  {				/* bfd_set_format.  */
    bfd_false,
    bfd_pef_mkobject,
    bfd_false,
    bfd_false,
  },
  {				/* bfd_write_contents.  */
    bfd_false,
    bfd_true,
    bfd_false,
    bfd_false,
  },

  BFD_JUMP_TABLE_GENERIC (bfd_pef),
  BFD_JUMP_TABLE_COPY (_bfd_generic),
  BFD_JUMP_TABLE_CORE (_bfd_nocore),
  BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
  BFD_JUMP_TABLE_SYMBOLS (bfd_pef),
  BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
  BFD_JUMP_TABLE_WRITE (bfd_pef),
  BFD_JUMP_TABLE_LINK (bfd_pef),
  BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),

  NULL,

  NULL
};

#define bfd_pef_xlib_close_and_cleanup              _bfd_generic_close_and_cleanup
#define bfd_pef_xlib_bfd_free_cached_info           _bfd_generic_bfd_free_cached_info
#define bfd_pef_xlib_new_section_hook               _bfd_generic_new_section_hook
#define bfd_pef_xlib_get_section_contents           _bfd_generic_get_section_contents
#define bfd_pef_xlib_set_section_contents           _bfd_generic_set_section_contents
#define bfd_pef_xlib_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
#define bfd_pef_xlib_set_section_contents_in_window _bfd_generic_set_section_contents_in_window

static int
bfd_pef_xlib_read_header (bfd *abfd, bfd_pef_xlib_header *header)
{
  unsigned char buf[76];

  bfd_seek (abfd, 0, SEEK_SET);

  if (bfd_bread ((void *) buf, 76, abfd) != 76)
    return -1;

  header->tag1 = bfd_getb32 (buf);
  header->tag2 = bfd_getb32 (buf + 4);
  header->current_format = bfd_getb32 (buf + 8);
  header->container_strings_offset = bfd_getb32 (buf + 12);
  header->export_hash_offset = bfd_getb32 (buf + 16);
  header->export_key_offset = bfd_getb32 (buf + 20);
  header->export_symbol_offset = bfd_getb32 (buf + 24);
  header->export_names_offset = bfd_getb32 (buf + 28);
  header->export_hash_table_power = bfd_getb32 (buf + 32);
  header->exported_symbol_count = bfd_getb32 (buf + 36);
  header->frag_name_offset = bfd_getb32 (buf + 40);
  header->frag_name_length = bfd_getb32 (buf + 44);
  header->dylib_path_offset = bfd_getb32 (buf + 48);
  header->dylib_path_length = bfd_getb32 (buf + 52);
  header->cpu_family = bfd_getb32 (buf + 56);
  header->cpu_model = bfd_getb32 (buf + 60);
  header->date_time_stamp = bfd_getb32 (buf + 64);
  header->current_version = bfd_getb32 (buf + 68);
  header->old_definition_version = bfd_getb32 (buf + 72);
  header->old_implementation_version = bfd_getb32 (buf + 76);

  return 0;
}

static int
bfd_pef_xlib_scan (bfd *abfd, bfd_pef_xlib_header *header)
{
  bfd_pef_xlib_data_struct *mdata = NULL;

  mdata = bfd_alloc (abfd, sizeof (* mdata));
  if (mdata == NULL)
    return -1;

  mdata->header = *header;

  abfd->flags = (abfd->xvec->object_flags
		 | (abfd->flags & (BFD_IN_MEMORY | BFD_IO_FUNCS)));

  abfd->tdata.pef_xlib_data = mdata;

  return 0;
}

static const bfd_target *
bfd_pef_xlib_object_p (bfd *abfd)
{
  struct bfd_preserve preserve;
  bfd_pef_xlib_header header;

  if (bfd_pef_xlib_read_header (abfd, &header) != 0)
    {
      bfd_set_error (bfd_error_wrong_format);
      return NULL;
    }

  if ((header.tag1 != BFD_PEF_XLIB_TAG1)
      || ((header.tag2 != BFD_PEF_VLIB_TAG2)
	  && (header.tag2 != BFD_PEF_BLIB_TAG2)))
    {
      bfd_set_error (bfd_error_wrong_format);
      return NULL;
    }

  if (! bfd_preserve_save (abfd, &preserve))
    {
      bfd_set_error (bfd_error_wrong_format);
      return NULL;
    }

  if (bfd_pef_xlib_scan (abfd, &header) != 0)
    {
      bfd_preserve_restore (abfd, &preserve);
      bfd_set_error (bfd_error_wrong_format);
      return NULL;
    }

  bfd_preserve_finish (abfd, &preserve);
  return abfd->xvec;
}

const bfd_target pef_xlib_vec =
{
  "pef-xlib",			/* Name.  */
  bfd_target_pef_xlib_flavour,	/* Flavour.  */
  BFD_ENDIAN_BIG,		/* Byteorder */
  BFD_ENDIAN_BIG,		/* Header_byteorder.  */
  (HAS_RELOC | EXEC_P |		/* Object flags.  */
   HAS_LINENO | HAS_DEBUG |
   HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
  (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE | SEC_DATA
   | SEC_ROM | SEC_HAS_CONTENTS),/* Section_flags.  */
  0,				/* Symbol_leading_char.  */
  ' ',				/* AR_pad_char.  */
  16,				/* AR_max_namelen.  */
  0,				/* match priority.  */
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
  bfd_getb32, bfd_getb_signed_32, bfd_putb32,
  bfd_getb16, bfd_getb_signed_16, bfd_putb16,	/* Data.  */
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
  bfd_getb32, bfd_getb_signed_32, bfd_putb32,
  bfd_getb16, bfd_getb_signed_16, bfd_putb16,	/* Headers.  */
  {				/* bfd_check_format.  */
    _bfd_dummy_target,
    bfd_pef_xlib_object_p,	/* bfd_check_format.  */
    _bfd_dummy_target,
    _bfd_dummy_target,
  },
  {				/* bfd_set_format.  */
    bfd_false,
    bfd_pef_mkobject,
    bfd_false,
    bfd_false,
  },
  {				/* bfd_write_contents.  */
    bfd_false,
    bfd_true,
    bfd_false,
    bfd_false,
  },

  BFD_JUMP_TABLE_GENERIC (bfd_pef_xlib),
  BFD_JUMP_TABLE_COPY (_bfd_generic),
  BFD_JUMP_TABLE_CORE (_bfd_nocore),
  BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
  BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
  BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
  BFD_JUMP_TABLE_WRITE (_bfd_nowrite),
  BFD_JUMP_TABLE_LINK (_bfd_nolink),
  BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),

  NULL,

  NULL
};
generated by cgit v1.1 at 2025-01-14 18:31:25 +0000