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Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers into modules, and delete rossubsys.
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24198 changed files with 0 additions and 37285 deletions
165
sdk/tools/obj2bin/obj2bin.c
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165
sdk/tools/obj2bin/obj2bin.c
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <typedefs.h>
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#include <pecoff.h>
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static
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void
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Usage(void)
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{
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printf("Converts a coff object file into a raw binary file.\n"
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"Syntax: obj2bin <source file> <dest file> <base address>\n");
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}
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static
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void
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RelocateSection(
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char *pData,
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IMAGE_SECTION_HEADER *pSectionHeader,
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PIMAGE_SYMBOL pSymbols,
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unsigned int iOffset)
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{
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unsigned int i, nOffset;
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PIMAGE_RELOCATION pReloc;
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char *pSection;
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WORD *p16;
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DWORD *p32;
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pSection = pData + pSectionHeader->PointerToRawData;
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/* Calculate pointer to relocation table */
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pReloc = (PIMAGE_RELOCATION)(pData + pSectionHeader->PointerToRelocations);
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/* Loop all relocations */
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for (i = 0; i < pSectionHeader->NumberOfRelocations; i++)
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{
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nOffset = pReloc->VirtualAddress - pSectionHeader->VirtualAddress;
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if (nOffset > pSectionHeader->SizeOfRawData) continue;
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switch (pReloc->Type)
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{
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case IMAGE_REL_I386_ABSOLUTE:
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case 16:
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p16 = (void*)(pSection + nOffset);
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*p16 += (WORD)(pSymbols[pReloc->SymbolTableIndex].Value + iOffset);
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break;
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case IMAGE_REL_I386_DIR32:
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p32 = (void*)(pSection + nOffset);
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*p32 += (DWORD)(pSymbols[pReloc->SymbolTableIndex].Value + iOffset);
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break;
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default:
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printf("Unknown relocation type %u, address 0x%x\n",
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pReloc->Type, (unsigned)pReloc->VirtualAddress);
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}
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pReloc++;
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}
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}
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int main(int argc, char *argv[])
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{
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char *pszSourceFile;
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char *pszDestFile;
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unsigned long nFileSize, nBaseAddress;
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FILE *pSourceFile, *pDestFile;
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IMAGE_FILE_HEADER *pFileHeader;
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IMAGE_SECTION_HEADER *pSectionHeader;
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unsigned int i;
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char *pData;
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PIMAGE_SYMBOL pSymbols;
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if ((argc != 4) || (strcmp(argv[1], "--help") == 0))
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{
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Usage();
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return -1;
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}
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pszSourceFile = argv[1];
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pszDestFile = argv[2];
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nBaseAddress = strtol(argv[3], 0, 16);
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pSourceFile = fopen(pszSourceFile, "rb");
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if (!pSourceFile)
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{
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fprintf(stderr, "Couldn't open source file '%s'\n", pszSourceFile);
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return -2;
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}
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/* Get file size */
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fseek(pSourceFile, 0, SEEK_END);
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nFileSize = ftell(pSourceFile);
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rewind(pSourceFile);
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/* Allocate memory for the file */
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pData = malloc(nFileSize);
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if (!pData)
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{
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fclose(pSourceFile);
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fprintf(stderr, "Failed to allocate %lu bytes\n", nFileSize);
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return -3;
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}
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/* Read the whole source file */
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if (!fread(pData, nFileSize, 1, pSourceFile))
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{
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free(pData);
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fclose(pSourceFile);
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fprintf(stderr, "Failed to read %lu bytes from source file\n", nFileSize);
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return -4;
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}
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/* Close source file */
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fclose(pSourceFile);
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/* Open the destination file */
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pDestFile = fopen(pszDestFile, "wb");
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if (!pDestFile)
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{
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free(pData);
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fprintf(stderr, "Couldn't open destination file '%s'\n", pszDestFile);
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return -5;
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}
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/* Calculate table pointers */
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pFileHeader = (IMAGE_FILE_HEADER*)pData;
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pSymbols = (void*)(pData + pFileHeader->PointerToSymbolTable);
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pSectionHeader = (void*)(((char*)(pFileHeader + 1)) + pFileHeader->SizeOfOptionalHeader);
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/* Loop all sections */
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for (i = 0; i < pFileHeader->NumberOfSections; i++)
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{
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/* Check if this is '.text' section */
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if ((strcmp((char*)pSectionHeader->Name, ".text") == 0) &&
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(pSectionHeader->SizeOfRawData != 0))
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{
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RelocateSection(pData,
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pSectionHeader,
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pSymbols,
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nBaseAddress);
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/* Write the section to the destination file */
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if (!fwrite(pData + pSectionHeader->PointerToRawData,
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pSectionHeader->SizeOfRawData, 1, pDestFile))
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{
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free(pData);
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fclose(pDestFile);
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fprintf(stderr, "Failed to write %u bytes to destination file\n",
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(unsigned int)pSectionHeader->SizeOfRawData);
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return -6;
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}
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nBaseAddress += pSectionHeader->SizeOfRawData;
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}
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pSectionHeader++;
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}
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free(pData);
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fclose(pDestFile);
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return 0;
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}
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