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 #include "windef.h"
  29 #include "winbase.h"
  30 #include "winnt.h"
  31
  32 #include "winedump.h"
  33
  34 static inline USHORT ushort_bswap(USHORT s)
  35 {
  36     return (s >> 8) | (s << 8);
  37 }
  38
  39 static inline UINT ulong_bswap(UINT l)
  40 {
  41     return ((UINT)ushort_bswap((USHORT)l) << 16) | ushort_bswap(l >> 16);
  42 }
  43
  44 static void dump_import_object(const IMPORT_OBJECT_HEADER *ioh)
  45 {
  46     if (ioh->Version == 0)
  47     {
  48         static const char * const obj_type[] = { "code", "data", "const" };
  49         static const char * const name_type[] = { "ordinal", "name", "no prefix", "undecorate" };
  50         const char *name;
  51
  52         printf("  Version      : %X\n", ioh->Version);
  53         printf("  Machine      : %X (%s)\n", ioh->Machine, get_machine_str(ioh->Machine));
  54         printf("  TimeDateStamp: %08X %s\n", (UINT)ioh->TimeDateStamp, get_time_str(ioh->TimeDateStamp));
  55         printf("  SizeOfData   : %08X\n", (UINT)ioh->SizeOfData);
  56         name = (const char *)ioh + sizeof(*ioh);
  57         printf("  DLL name     : %s\n", name + strlen(name) + 1);
  58         printf("  Symbol name  : %s\n", name);
  59         printf("  Type         : %s\n", (ioh->Type < ARRAY_SIZE(obj_type)) ? obj_type[ioh->Type] : "unknown");
  60         printf("  Name type    : %s\n", (ioh->NameType < ARRAY_SIZE(name_type)) ? name_type[ioh->NameType] : "unknown");
  61         printf("  %-13s: %u\n", (ioh->NameType == IMPORT_OBJECT_ORDINAL) ? "Ordinal" : "Hint", ioh->Ordinal);
  62         printf("\n");
  63     }
  64 }
  65
  66 static void dump_long_import(const void *base, const IMAGE_SECTION_HEADER *ish, unsigned num_sect)
  67 {
  68     unsigned i;
  69     const DWORD *imp_data5 = NULL;
  70     const WORD *imp_data6 = NULL;
  71
  72     if (globals.do_dumpheader)
  73         printf("Section Table\n");
  74
  75     for (i = 0; i < num_sect; i++)
  76     {
  77         if (globals.do_dumpheader)
  78             dump_section(&ish[i], NULL);
  79
  80         if (globals.do_dump_rawdata)
  81         {
  82             dump_data((const unsigned char *)base + ish[i].PointerToRawData, ish[i].SizeOfRawData, "    " );
  83             printf("\n");
  84         }
  85
  86         if (!strcmp((const char *)ish[i].Name, ".idata$5"))
  87         {
  88             imp_data5 = (const DWORD *)((const char *)base + ish[i].PointerToRawData);
  89         }
  90         else if (!strcmp((const char *)ish[i].Name, ".idata$6"))
  91         {
  92             imp_data6 = (const WORD *)((const char *)base + ish[i].PointerToRawData);
  93         }
  94         else if (globals.do_debug && !strcmp((const char *)ish[i].Name, ".debug$S"))
  95         {
  96             const char *imp_debugS = (const char *)base + ish[i].PointerToRawData;
  97
  98             codeview_dump_symbols(imp_debugS, 0, ish[i].SizeOfRawData);
  99             printf("\n");
 100         }
 101     }
 102
 103     if (imp_data5)
 104     {
 105         WORD ordinal = 0;
 106         const char *name = NULL;
 107
 108         if (imp_data5[0] & 0x80000000)
 109             ordinal = (WORD)(imp_data5[0] & ~0x80000000);
 110
 111         if (imp_data6)
 112         {
 113             if (!ordinal) ordinal = imp_data6[0];
 114             name = (const char *)(imp_data6 + 1);
 115         }
 116         else
 117         {
 118             /* FIXME: find out a name in the section's data */
 119         }
 120
 121         if (ordinal)
 122         {
 123             printf("  Symbol name  : %s\n", name ? name : "(ordinal import) /* FIXME */");
 124             printf("  %-13s: %u\n", (imp_data5[0] & 0x80000000) ? "Ordinal" : "Hint", ordinal);
 125             printf("\n");
 126         }
 127     }
 128 }
 129
 130 enum FileSig get_kind_lib(void)
 131 {
 132     const char*         arch = PRD(0, IMAGE_ARCHIVE_START_SIZE);
 133     if (arch && !strncmp(arch, IMAGE_ARCHIVE_START, IMAGE_ARCHIVE_START_SIZE))
 134         return SIG_COFFLIB;
 135     return SIG_UNKNOWN;
 136 }
 137
 138 void lib_dump(void)
 139 {
 140     BOOL first_linker_member = TRUE;
 141     unsigned long cur_file_pos, long_names_size = 0;
 142     const IMAGE_ARCHIVE_MEMBER_HEADER *iamh;
 143     const char *long_names = NULL;
 144
 145     cur_file_pos = IMAGE_ARCHIVE_START_SIZE;
 146
 147     for (;;)
 148     {
 149         const IMPORT_OBJECT_HEADER *ioh;
 150         unsigned long size;
 151
 152         if (!(iamh = PRD(cur_file_pos, sizeof(*iamh)))) break;
 153
 154         if (globals.do_dumpheader)
 155         {
 156             printf("Archive member name at %08lx\n", Offset(iamh));
 157
 158             printf("Name %.16s", iamh->Name);
 159             if (!strncmp((const char *)iamh->Name, IMAGE_ARCHIVE_LINKER_MEMBER, sizeof(iamh->Name)))
 160             {
 161                 printf(" - %s archive linker member\n", first_linker_member ? "1st" : "2nd");
 162             }
 163             else
 164             {
 165                 if (long_names && iamh->Name[0] == '/')
 166                 {
 167                     unsigned long long_names_offset = atol((const char *)&iamh->Name[1]);
 168                     if (long_names_offset < long_names_size)
 169                         printf("%s\n", long_names + long_names_offset);
 170                 }
 171                 printf("\n");
 172             }
 173             printf("Date %.12s %s\n", iamh->Date, get_time_str(strtoul((const char *)iamh->Date, NULL, 10)));
 174             printf("UserID %.6s\n", iamh->UserID);
 175             printf("GroupID %.6s\n", iamh->GroupID);
 176             printf("Mode %.8s\n", iamh->Mode);
 177             printf("Size %.10s\n\n", iamh->Size);
 178         }
 179
 180         cur_file_pos += sizeof(IMAGE_ARCHIVE_MEMBER_HEADER);
 181
 182         size = strtoul((const char *)iamh->Size, NULL, 10);
 183         size = (size + 1) & ~1; /* align to an even address */
 184
 185         if (!(ioh = PRD(cur_file_pos, sizeof(*ioh)))) break;
 186
 187         if (ioh->Sig1 == IMAGE_FILE_MACHINE_UNKNOWN && ioh->Sig2 == IMPORT_OBJECT_HDR_SIG2)
 188         {
 189             dump_import_object(ioh);
 190         }
 191         else if (!strncmp((const char *)iamh->Name, IMAGE_ARCHIVE_LINKER_MEMBER, sizeof(iamh->Name)))
 192         {
 193             const UINT *offset = (const UINT *)ioh;
 194             const char *name;
 195             UINT i, count;
 196
 197             if (first_linker_member) /* 1st archive linker member, BE format */
 198             {
 199                 count = ulong_bswap(*offset++);
 200                 name = (const char *)(offset + count);
 201                 printf("%u public symbols\n", count);
 202                 for (i = 0; i < count; i++)
 203                 {
 204                     printf("%8x %s\n", ulong_bswap(offset[i]), name);
 205                     name += strlen(name) + 1;
 206                 }
 207                 printf("\n");
 208             }
 209             else /* 2nd archive linker member, LE format */
 210             {
 211                 const WORD *idx;
 212
 213                 count = *offset++;
 214                 printf("%u offsets\n", count);
 215                 for (i = 0; i < count; i++)
 216                 {
 217                     printf("%8x %8x\n", i, offset[i]);
 218                 }
 219                 printf("\n");
 220
 221                 offset += count;
 222                 count = *offset++;
 223                 idx = (const WORD *)offset;
 224                 name = (const char *)(idx + count);
 225                 printf("%u public symbols\n", count);
 226                 for (i = 0; i < count; i++)
 227                 {
 228                     printf("%8x %s\n", idx[i], name);
 229                     name += strlen(name) + 1;
 230                 }
 231                 printf("\n");
 232             }
 233         }
 234         else if (!strncmp((const char *)iamh->Name, "/<ECSYMBOLS>/   ", sizeof(iamh->Name)))
 235         {
 236             unsigned int i, *count = (unsigned int *)ioh;
 237             unsigned short *offsets = (unsigned short *)(count + 1);
 238             const char *name = (const char *)(offsets + *count);
 239
 240             printf("%u EC symbols\n", *count);
 241             for (i = 0; i < *count; i++)
 242             {
 243                 printf("%8x %s\n", offsets[i], name);
 244                 name += strlen(name) + 1;
 245             }
 246             printf("\n");
 247         }
 248         else if (!strncmp((const char *)iamh->Name, IMAGE_ARCHIVE_LONGNAMES_MEMBER, sizeof(iamh->Name)))
 249         {
 250             long_names = PRD(cur_file_pos, size);
 251             long_names_size = size;
 252         }
 253         else
 254         {
 255             unsigned long expected_size;
 256             const IMAGE_FILE_HEADER *fh = (const IMAGE_FILE_HEADER *)ioh;
 257
 258             if (globals.do_dumpheader)
 259             {
 260                 dump_file_header(fh, FALSE);
 261                 if (fh->SizeOfOptionalHeader)
 262                 {
 263                     const IMAGE_OPTIONAL_HEADER32 *oh = (const IMAGE_OPTIONAL_HEADER32 *)((const char *)fh + sizeof(*fh));
 264                     dump_optional_header(oh, fh->SizeOfOptionalHeader);
 265                 }
 266             }
 267             /* Sanity check */
 268             expected_size = sizeof(*fh) + fh->SizeOfOptionalHeader + fh->NumberOfSections * sizeof(IMAGE_SECTION_HEADER);
 269             if (size > expected_size)
 270                 dump_long_import(fh, (const IMAGE_SECTION_HEADER *)((const char *)fh + sizeof(*fh) + fh->SizeOfOptionalHeader), fh->NumberOfSections);
 271         }
 272
 273         first_linker_member = FALSE;
 274         cur_file_pos += size;
 275     }
 276 }