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devtools/test_binaries/OBJDUMP.C

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+//--------------------
+// 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);
+	}
+}