tools/winedump/lib.c

   1 /*
   2  *  Dump a COFF library (lib) file
   3  *
   4  * Copyright 2006 Dmitry Timoshkov
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdarg.h>
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <fcntl.h>
  27
  28 #define NONAMELESSUNION
  29
  30 #include "windef.h"
  31 #include "winbase.h"
  32 #include "winnt.h"
  33
  34 #include "winedump.h"
  35
  36 static inline USHORT ushort_bswap(USHORT s)
  37 {
  38     return (s >> 8) | (s << 8);
  39 }
  40
  41 static inline ULONG ulong_bswap(ULONG l)
  42 {
  43     return ((ULONG)ushort_bswap((USHORT)l) << 16) | ushort_bswap((USHORT)(l >> 16));
  44 }
  45
  46 static void dump_import_object(const IMPORT_OBJECT_HEADER *ioh)
  47 {
  48     if (ioh->Version == 0)
  49     {
  50         static const char * const obj_type[] = { "code", "data", "const" };
  51         static const char * const name_type[] = { "ordinal", "name", "no prefix", "undecorate" };
  52         const char *name;
  53
  54         printf("  Version      : %X\n", ioh->Version);
  55         printf("  Machine      : %X (%s)\n", ioh->Machine, get_machine_str(ioh->Machine));
  56         printf("  TimeDateStamp: %08X %s\n", ioh->TimeDateStamp, get_time_str(ioh->TimeDateStamp));
  57         printf("  SizeOfData   : %08X\n", ioh->SizeOfData);
  58         name = (const char *)ioh + sizeof(*ioh);
  59         printf("  DLL name     : %s\n", name + strlen(name) + 1);
  60         printf("  Symbol name  : %s\n", name);
  61         printf("  Type         : %s\n", (ioh->Type < ARRAY_SIZE(obj_type)) ? obj_type[ioh->Type] : "unknown");
  62         printf("  Name type    : %s\n", (ioh->NameType < ARRAY_SIZE(name_type)) ? name_type[ioh->NameType] : "unknown");
  63         printf("  %-13s: %u\n", (ioh->NameType == IMPORT_OBJECT_ORDINAL) ? "Ordinal" : "Hint", ioh->u.Ordinal);
  64         printf("\n");
  65     }
  66 }
  67
  68 static void dump_long_import(const void *base, const IMAGE_SECTION_HEADER *ish, unsigned num_sect)
  69 {
  70     unsigned i;
  71     const DWORD *imp_data5 = NULL;
  72     const WORD *imp_data6 = NULL;
  73
  74     if (globals.do_dumpheader)
  75         printf("Section Table\n");
  76
  77     for (i = 0; i < num_sect; i++)
  78     {
  79         if (globals.do_dumpheader)
  80             dump_section(&ish[i], NULL);
  81
  82         if (globals.do_dump_rawdata)
  83         {
  84             dump_data((const unsigned char *)base + ish[i].PointerToRawData, ish[i].SizeOfRawData, "    " );
  85             printf("\n");
  86         }
  87
  88         if (!strcmp((const char *)ish[i].Name, ".idata$5"))
  89         {
  90             imp_data5 = (const DWORD *)((const char *)base + ish[i].PointerToRawData);
  91         }
  92         else if (!strcmp((const char *)ish[i].Name, ".idata$6"))
  93         {
  94             imp_data6 = (const WORD *)((const char *)base + ish[i].PointerToRawData);
  95         }
  96         else if (globals.do_debug && !strcmp((const char *)ish[i].Name, ".debug$S"))
  97         {
  98             const char *imp_debugS = (const char *)base + ish[i].PointerToRawData;
  99
 100             codeview_dump_symbols(imp_debugS, 0, ish[i].SizeOfRawData);
 101             printf("\n");
 102         }
 103     }
 104
 105     if (imp_data5)
 106     {
 107         WORD ordinal = 0;
 108         const char *name = NULL;
 109
 110         if (imp_data5[0] & 0x80000000)
 111             ordinal = (WORD)(imp_data5[0] & ~0x80000000);
 112
 113         if (imp_data6)
 114         {
 115             if (!ordinal) ordinal = imp_data6[0];
 116             name = (const char *)(imp_data6 + 1);
 117         }
 118         else
 119         {
 120             /* FIXME: find out a name in the section's data */
 121         }
 122
 123         if (ordinal)
 124         {
 125             printf("  Symbol name  : %s\n", name ? name : "(ordinal import) /* FIXME */");
 126             printf("  %-13s: %u\n", (imp_data5[0] & 0x80000000) ? "Ordinal" : "Hint", ordinal);
 127             printf("\n");
 128         }
 129     }
 130 }
 131
 132 enum FileSig get_kind_lib(void)
 133 {
 134     const char*         arch = PRD(0, IMAGE_ARCHIVE_START_SIZE);
 135     if (arch && !strncmp(arch, IMAGE_ARCHIVE_START, IMAGE_ARCHIVE_START_SIZE))
 136         return SIG_COFFLIB;
 137     return SIG_UNKNOWN;
 138 }
 139
 140 void lib_dump(void)
 141 {
 142     BOOL first_linker_member = TRUE;
 143     unsigned long cur_file_pos, long_names_size = 0;
 144     const IMAGE_ARCHIVE_MEMBER_HEADER *iamh;
 145     const char *long_names = NULL;
 146
 147     cur_file_pos = IMAGE_ARCHIVE_START_SIZE;
 148
 149     for (;;)
 150     {
 151         const IMPORT_OBJECT_HEADER *ioh;
 152         unsigned long size;
 153
 154         if (!(iamh = PRD(cur_file_pos, sizeof(*iamh)))) break;
 155
 156         if (globals.do_dumpheader)
 157         {
 158             printf("Archive member name at %08lx\n", Offset(iamh));
 159
 160             printf("Name %.16s", iamh->Name);
 161             if (!strncmp((const char *)iamh->Name, IMAGE_ARCHIVE_LINKER_MEMBER, sizeof(iamh->Name)))
 162             {
 163                 printf(" - %s archive linker member\n", first_linker_member ? "1st" : "2nd");
 164             }
 165             else
 166             {
 167                 if (long_names && iamh->Name[0] == '/')
 168                 {
 169                     unsigned long long_names_offset = atol((const char *)&iamh->Name[1]);
 170                     if (long_names_offset < long_names_size)
 171                         printf("%s\n", long_names + long_names_offset);
 172                 }
 173                 printf("\n");
 174             }
 175             printf("Date %.12s %s\n", iamh->Date, get_time_str(strtoul((const char *)iamh->Date, NULL, 10)));
 176             printf("UserID %.6s\n", iamh->UserID);
 177             printf("GroupID %.6s\n", iamh->GroupID);
 178             printf("Mode %.8s\n", iamh->Mode);
 179             printf("Size %.10s\n\n", iamh->Size);
 180         }
 181
 182         cur_file_pos += sizeof(IMAGE_ARCHIVE_MEMBER_HEADER);
 183
 184         size = strtoul((const char *)iamh->Size, NULL, 10);
 185         size = (size + 1) & ~1; /* align to an even address */
 186
 187         if (!(ioh = PRD(cur_file_pos, sizeof(*ioh)))) break;
 188
 189         if (ioh->Sig1 == IMAGE_FILE_MACHINE_UNKNOWN && ioh->Sig2 == IMPORT_OBJECT_HDR_SIG2)
 190         {
 191             dump_import_object(ioh);
 192         }
 193         else if (!strncmp((const char *)iamh->Name, IMAGE_ARCHIVE_LINKER_MEMBER, sizeof(iamh->Name)))
 194         {
 195             const DWORD *offset = (const DWORD *)ioh;
 196             const char *name;
 197             DWORD i, count;
 198
 199             if (first_linker_member) /* 1st archive linker member, BE format */
 200             {
 201                 count = ulong_bswap(*offset++);
 202                 name = (const char *)(offset + count);
 203                 printf("%u public symbols\n", count);
 204                 for (i = 0; i < count; i++)
 205                 {
 206                     printf("%8x %s\n", ulong_bswap(offset[i]), name);
 207                     name += strlen(name) + 1;
 208                 }
 209                 printf("\n");
 210             }
 211             else /* 2nd archive linker member, LE format */
 212             {
 213                 const WORD *idx;
 214
 215                 count = *offset++;
 216                 printf("%u offsets\n", count);
 217                 for (i = 0; i < count; i++)
 218                 {
 219                     printf("%8x %8x\n", i, offset[i]);
 220                 }
 221                 printf("\n");
 222
 223                 offset += count;
 224                 count = *offset++;
 225                 idx = (const WORD *)offset;
 226                 name = (const char *)(idx + count);
 227                 printf("%u public symbols\n", count);
 228                 for (i = 0; i < count; i++)
 229                 {
 230                     printf("%8x %s\n", idx[i], name);
 231                     name += strlen(name) + 1;
 232                 }
 233                 printf("\n");
 234             }
 235         }
 236         else if (!strncmp((const char *)iamh->Name, IMAGE_ARCHIVE_LONGNAMES_MEMBER, sizeof(iamh->Name)))
 237         {
 238             long_names = PRD(cur_file_pos, size);
 239             long_names_size = size;
 240         }
 241         else
 242         {
 243             unsigned long expected_size;
 244             const IMAGE_FILE_HEADER *fh = (const IMAGE_FILE_HEADER *)ioh;
 245
 246             if (globals.do_dumpheader)
 247             {
 248                 dump_file_header(fh);
 249                 if (fh->SizeOfOptionalHeader)
 250                 {
 251                     const IMAGE_OPTIONAL_HEADER32 *oh = (const IMAGE_OPTIONAL_HEADER32 *)((const char *)fh + sizeof(*fh));
 252                     dump_optional_header(oh, fh->SizeOfOptionalHeader);
 253                 }
 254             }
 255             /* Sanity check */
 256             expected_size = sizeof(*fh) + fh->SizeOfOptionalHeader + fh->NumberOfSections * sizeof(IMAGE_SECTION_HEADER);
 257             if (size > expected_size)
 258                 dump_long_import(fh, (const IMAGE_SECTION_HEADER *)((const char *)fh + sizeof(*fh) + fh->SizeOfOptionalHeader), fh->NumberOfSections);
 259         }
 260
 261         first_linker_member = FALSE;
 262         cur_file_pos += size;
 263     }
 264 }