Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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5 years ago
//--------------------
// PROGRAM: PEDUMP
// FILE: OBJDUMP.C
// AUTHOR: Matt Pietrek - 1993
//--------------------
#include <windows.h>
#include <stdio.h>
#include "common.h"
#include "extrnvar.h"
typedef struct _i386RelocTypes
{
WORD type;
PSTR name;
} i386RelocTypes;
// ASCII names for the various relocations used in i386 COFF OBJs
i386RelocTypes i386Relocations[] =
{
{ IMAGE_REL_I386_ABSOLUTE, "ABSOLUTE" },
{ IMAGE_REL_I386_DIR16, "DIR16" },
{ IMAGE_REL_I386_REL16, "REL16" },
{ IMAGE_REL_I386_DIR32, "DIR32" },
{ IMAGE_REL_I386_DIR32NB, "DIR32NB" },
{ IMAGE_REL_I386_SEG12, "SEG12" },
{ IMAGE_REL_I386_SECTION, "SECTION" },
{ IMAGE_REL_I386_SECREL, "SECREL" },
{ IMAGE_REL_I386_REL32, "REL32" }
};
#define I386RELOCTYPECOUNT (sizeof(i386Relocations) / sizeof(i386RelocTypes))
//
// Given an i386 OBJ relocation type, return its ASCII name in a buffer
//
void GetObjRelocationName(WORD type, PSTR buffer, DWORD cBytes)
{
DWORD i;
for ( i=0; i < I386RELOCTYPECOUNT; i++ )
if ( type == i386Relocations[i].type )
{
strncpy(buffer, i386Relocations[i].name, cBytes);
return;
}
wsprintf( buffer, "???_%X", type);
}
//
// Dump the relocation table for one COFF section
//
void DumpObjRelocations(PIMAGE_RELOCATION pRelocs, DWORD count)
{
DWORD i;
char szTypeName[32];
for ( i=0; i < count; i++ )
{
GetObjRelocationName(pRelocs->Type, szTypeName, sizeof(szTypeName));
printf(" Address: %08X SymIndex: %08X Type: %s\n",
pRelocs->VirtualAddress, pRelocs->SymbolTableIndex,
szTypeName);
pRelocs++;
}
}
//
// top level routine called from PEDUMP.C to dump the components of a
// COFF OBJ file.
//
void DumpObjFile( PIMAGE_FILE_HEADER pImageFileHeader )
{
unsigned i;
PIMAGE_SECTION_HEADER pSections;
DumpHeader(pImageFileHeader);
printf("\n");
pSections = (PIMAGE_SECTION_HEADER)(pImageFileHeader+1);
DumpSectionTable(pSections, pImageFileHeader->NumberOfSections, FALSE);
printf("\n");
if ( fShowRelocations )
{
for ( i=0; i < pImageFileHeader->NumberOfSections; i++ )
{
if ( pSections[i].PointerToRelocations == 0 )
continue;
printf("Section %02X (%.8s) relocations\n", i, pSections[i].Name);
DumpObjRelocations( MakePtr(PIMAGE_RELOCATION, pImageFileHeader,
pSections[i].PointerToRelocations),
pSections[i].NumberOfRelocations );
printf("\n");
}
}
PCOFFSymbolTable = MakePtr(PIMAGE_SYMBOL, pImageFileHeader,
pImageFileHeader->PointerToSymbolTable);
COFFSymbolCount = pImageFileHeader->NumberOfSymbols;
if ( fShowLineNumbers )
{
// Walk through the section table...
for (i=0; i < pImageFileHeader->NumberOfSections; i++)
{
// if there's any line numbers for this section, dump'em
if ( pSections->NumberOfLinenumbers )
{
DumpLineNumbers( MakePtr(PIMAGE_LINENUMBER, pImageFileHeader,
pSections->PointerToLinenumbers),
pSections->NumberOfLinenumbers );
printf("\n");
}
pSections++;
}
}
if ( fShowSymbolTable )
{
DumpSymbolTable(PCOFFSymbolTable, COFFSymbolCount);
printf("\n");
}
if ( fShowRawSectionData )
{
DumpRawSectionData( (PIMAGE_SECTION_HEADER)(pImageFileHeader+1),
pImageFileHeader,
pImageFileHeader->NumberOfSections);
}
}