133 lines
3.2 KiB
C
133 lines
3.2 KiB
C
//--------------------
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// PROGRAM: PEDUMP
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// FILE: OBJDUMP.C
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// AUTHOR: Matt Pietrek - 1993
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//--------------------
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#include <windows.h>
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#include <stdio.h>
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#include "common.h"
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#include "extrnvar.h"
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typedef struct _i386RelocTypes
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{
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WORD type;
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PSTR name;
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} i386RelocTypes;
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// ASCII names for the various relocations used in i386 COFF OBJs
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i386RelocTypes i386Relocations[] =
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{
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{ IMAGE_REL_I386_ABSOLUTE, "ABSOLUTE" },
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{ IMAGE_REL_I386_DIR16, "DIR16" },
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{ IMAGE_REL_I386_REL16, "REL16" },
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{ IMAGE_REL_I386_DIR32, "DIR32" },
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{ IMAGE_REL_I386_DIR32NB, "DIR32NB" },
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{ IMAGE_REL_I386_SEG12, "SEG12" },
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{ IMAGE_REL_I386_SECTION, "SECTION" },
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{ IMAGE_REL_I386_SECREL, "SECREL" },
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{ IMAGE_REL_I386_REL32, "REL32" }
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};
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#define I386RELOCTYPECOUNT (sizeof(i386Relocations) / sizeof(i386RelocTypes))
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//
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// Given an i386 OBJ relocation type, return its ASCII name in a buffer
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//
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void GetObjRelocationName(WORD type, PSTR buffer, DWORD cBytes)
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{
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DWORD i;
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for ( i=0; i < I386RELOCTYPECOUNT; i++ )
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if ( type == i386Relocations[i].type )
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{
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strncpy(buffer, i386Relocations[i].name, cBytes);
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return;
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}
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wsprintf( buffer, "???_%X", type);
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}
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//
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// Dump the relocation table for one COFF section
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//
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void DumpObjRelocations(PIMAGE_RELOCATION pRelocs, DWORD count)
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{
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DWORD i;
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char szTypeName[32];
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for ( i=0; i < count; i++ )
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{
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GetObjRelocationName(pRelocs->Type, szTypeName, sizeof(szTypeName));
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printf(" Address: %08X SymIndex: %08X Type: %s\n",
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pRelocs->VirtualAddress, pRelocs->SymbolTableIndex,
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szTypeName);
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pRelocs++;
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}
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}
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//
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// top level routine called from PEDUMP.C to dump the components of a
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// COFF OBJ file.
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//
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void DumpObjFile( PIMAGE_FILE_HEADER pImageFileHeader )
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{
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unsigned i;
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PIMAGE_SECTION_HEADER pSections;
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DumpHeader(pImageFileHeader);
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printf("\n");
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pSections = (PIMAGE_SECTION_HEADER)(pImageFileHeader+1);
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DumpSectionTable(pSections, pImageFileHeader->NumberOfSections, FALSE);
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printf("\n");
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if ( fShowRelocations )
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{
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for ( i=0; i < pImageFileHeader->NumberOfSections; i++ )
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{
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if ( pSections[i].PointerToRelocations == 0 )
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continue;
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printf("Section %02X (%.8s) relocations\n", i, pSections[i].Name);
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DumpObjRelocations( MakePtr(PIMAGE_RELOCATION, pImageFileHeader,
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pSections[i].PointerToRelocations),
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pSections[i].NumberOfRelocations );
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printf("\n");
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}
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}
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PCOFFSymbolTable = MakePtr(PIMAGE_SYMBOL, pImageFileHeader,
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pImageFileHeader->PointerToSymbolTable);
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COFFSymbolCount = pImageFileHeader->NumberOfSymbols;
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if ( fShowLineNumbers )
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{
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// Walk through the section table...
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for (i=0; i < pImageFileHeader->NumberOfSections; i++)
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{
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// if there's any line numbers for this section, dump'em
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if ( pSections->NumberOfLinenumbers )
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{
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DumpLineNumbers( MakePtr(PIMAGE_LINENUMBER, pImageFileHeader,
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pSections->PointerToLinenumbers),
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pSections->NumberOfLinenumbers );
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printf("\n");
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}
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pSections++;
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}
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}
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if ( fShowSymbolTable )
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{
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DumpSymbolTable(PCOFFSymbolTable, COFFSymbolCount);
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printf("\n");
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}
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if ( fShowRawSectionData )
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{
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DumpRawSectionData( (PIMAGE_SECTION_HEADER)(pImageFileHeader+1),
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pImageFileHeader,
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pImageFileHeader->NumberOfSections);
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}
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}
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