ReactOS 0.4.15-dev-5667-ged97270
obj2bin.c
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1#include <stdio.h>
2#include <stdlib.h>
3#include <string.h>
4#include <typedefs.h>
5#include <pecoff.h>
6
7static
8void
9Usage(void)
10{
11 printf("Converts a coff object file into a raw binary file.\n"
12 "Syntax: obj2bin <source file> <dest file> <base address>\n");
13}
14
15static
16int
18 char *pData,
19 IMAGE_SECTION_HEADER *pSectionHeader,
20 PIMAGE_SYMBOL pSymbols,
21 unsigned int iOffset)
22{
23 unsigned int i, nOffset;
24 PIMAGE_RELOCATION pReloc;
25 char *pSection;
26 WORD *p16;
27 DWORD *p32;
28
29 pSection = pData + pSectionHeader->PointerToRawData;
30
31 /* Calculate pointer to relocation table */
32 pReloc = (PIMAGE_RELOCATION)(pData + pSectionHeader->PointerToRelocations);
33
34 /* Loop all relocations */
35 for (i = 0; i < pSectionHeader->NumberOfRelocations; i++)
36 {
37 nOffset = pReloc->VirtualAddress - pSectionHeader->VirtualAddress;
38
39 if (nOffset > pSectionHeader->SizeOfRawData) continue;
40
41 switch (pReloc->Type)
42 {
44 case 16:
45 p16 = (void*)(pSection + nOffset);
46 *p16 += (WORD)(pSymbols[pReloc->SymbolTableIndex].Value + iOffset);
47 break;
48
50 p16 = (void*)(pSection + nOffset);
51 *p16 += (WORD)(pSymbols[pReloc->SymbolTableIndex].Value + iOffset);
52 break;
53
55 p32 = (void*)(pSection + nOffset);
56 *p32 += (DWORD)(pSymbols[pReloc->SymbolTableIndex].Value + iOffset);
57 break;
58
59 default:
60 printf("Unknown relocation type %u, address 0x%x\n",
61 pReloc->Type, (unsigned)pReloc->VirtualAddress);
62 return 0;
63 }
64
65 pReloc++;
66 }
67
68 return 1;
69}
70
71int main(int argc, char *argv[])
72{
73 char *pszSourceFile;
74 char *pszDestFile;
75 unsigned long nFileSize, nBaseAddress;
76 FILE *pSourceFile, *pDestFile;
77 IMAGE_FILE_HEADER *pFileHeader;
78 IMAGE_SECTION_HEADER *pSectionHeader;
79 unsigned int i;
80 char *pData;
81 PIMAGE_SYMBOL pSymbols;
82
83 if ((argc != 4) || (strcmp(argv[1], "--help") == 0))
84 {
85 Usage();
86 return -1;
87 }
88
89 pszSourceFile = argv[1];
90 pszDestFile = argv[2];
91 nBaseAddress = strtol(argv[3], 0, 16);
92
93 pSourceFile = fopen(pszSourceFile, "rb");
94 if (!pSourceFile)
95 {
96 fprintf(stderr, "Couldn't open source file '%s'\n", pszSourceFile);
97 return -2;
98 }
99
100 /* Get file size */
101 fseek(pSourceFile, 0, SEEK_END);
102 nFileSize = ftell(pSourceFile);
103 rewind(pSourceFile);
104
105 /* Allocate memory for the file */
106 pData = malloc(nFileSize);
107 if (!pData)
108 {
109 fclose(pSourceFile);
110 fprintf(stderr, "Failed to allocate %lu bytes\n", nFileSize);
111 return -3;
112 }
113
114 /* Read the whole source file */
115 if (!fread(pData, nFileSize, 1, pSourceFile))
116 {
117 free(pData);
118 fclose(pSourceFile);
119 fprintf(stderr, "Failed to read %lu bytes from source file\n", nFileSize);
120 return -4;
121 }
122
123 /* Close source file */
124 fclose(pSourceFile);
125
126 /* Open the destination file */
127 pDestFile = fopen(pszDestFile, "wb");
128 if (!pDestFile)
129 {
130 free(pData);
131 fprintf(stderr, "Couldn't open destination file '%s'\n", pszDestFile);
132 return -5;
133 }
134
135 /* Calculate table pointers */
136 pFileHeader = (IMAGE_FILE_HEADER*)pData;
137 pSymbols = (void*)(pData + pFileHeader->PointerToSymbolTable);
138 pSectionHeader = (void*)(((char*)(pFileHeader + 1)) + pFileHeader->SizeOfOptionalHeader);
139
140 /* Loop all sections */
141 for (i = 0; i < pFileHeader->NumberOfSections; i++)
142 {
143 /* Check if this is '.text' section */
144 if ((strcmp((char*)pSectionHeader->Name, ".text") == 0) &&
145 (pSectionHeader->SizeOfRawData != 0))
146 {
148 pSectionHeader,
149 pSymbols,
150 nBaseAddress))
151 {
152 free(pData);
153 fclose(pDestFile);
154 return -7;
155 }
156
157 /* Write the section to the destination file */
158 if (!fwrite(pData + pSectionHeader->PointerToRawData,
159 pSectionHeader->SizeOfRawData, 1, pDestFile))
160 {
161 free(pData);
162 fclose(pDestFile);
163 fprintf(stderr, "Failed to write %u bytes to destination file\n",
164 (unsigned int)pSectionHeader->SizeOfRawData);
165 return -6;
166 }
167
168 nBaseAddress += pSectionHeader->SizeOfRawData;
169 }
170
171 pSectionHeader++;
172 }
173
174 free(pData);
175 fclose(pDestFile);
176
177 return 0;
178}
static int argc
Definition: ServiceArgs.c:12
int strcmp(const char *String1, const char *String2)
Definition: utclib.c:469
#define SEEK_END
Definition: cabinet.c:27
#define free
Definition: debug_ros.c:5
#define malloc
Definition: debug_ros.c:4
int main()
Definition: test.c:6
unsigned long DWORD
Definition: ntddk_ex.h:95
unsigned short WORD
Definition: ntddk_ex.h:93
#define printf
Definition: freeldr.h:94
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
_CRTIMP void __cdecl rewind(_Inout_ FILE *_File)
#define stderr
Definition: stdio.h:100
_Check_return_opt_ _CRTIMP int __cdecl fprintf(_Inout_ FILE *_File, _In_z_ _Printf_format_string_ const char *_Format,...)
_Check_return_opt_ _CRTIMP size_t __cdecl fread(_Out_writes_bytes_(_ElementSize *_Count) void *_DstBuf, _In_ size_t _ElementSize, _In_ size_t _Count, _Inout_ FILE *_File)
_Check_return_ _CRTIMP FILE *__cdecl fopen(_In_z_ const char *_Filename, _In_z_ const char *_Mode)
_Check_return_opt_ _CRTIMP int __cdecl fseek(_Inout_ FILE *_File, _In_ long _Offset, _In_ int _Origin)
_Check_return_opt_ _CRTIMP int __cdecl fclose(_Inout_ FILE *_File)
_Check_return_ _CRTIMP long __cdecl ftell(_Inout_ FILE *_File)
_Check_return_opt_ _CRTIMP size_t __cdecl fwrite(_In_reads_bytes_(_Size *_Count) const void *_Str, _In_ size_t _Size, _In_ size_t _Count, _Inout_ FILE *_File)
_Check_return_ long __cdecl strtol(_In_z_ const char *_Str, _Out_opt_ _Deref_post_z_ char **_EndPtr, _In_ int _Radix)
#define argv
Definition: mplay32.c:18
#define DWORD
Definition: nt_native.h:44
static int RelocateSection(char *pData, IMAGE_SECTION_HEADER *pSectionHeader, PIMAGE_SYMBOL pSymbols, unsigned int iOffset)
Definition: obj2bin.c:17
static void Usage(void)
Definition: obj2bin.c:9
#define IMAGE_REL_I386_ABSOLUTE
Definition: pecoff.h:60
struct _IMAGE_RELOCATION UNALIGNED * PIMAGE_RELOCATION
Definition: pecoff.h:239
#define IMAGE_REL_I386_REL16
Definition: pecoff.h:61
#define IMAGE_REL_I386_DIR32
Definition: pecoff.h:62
struct _IMAGE_SYMBOL UNALIGNED * PIMAGE_SYMBOL
Definition: pecoff.h:258
DWORD PointerToSymbolTable
Definition: ntddk_ex.h:125
WORD SizeOfOptionalHeader
Definition: ntddk_ex.h:127
DWORD PointerToRelocations
Definition: pedump.c:291
DWORD PointerToRawData
Definition: pedump.c:290
BYTE Name[IMAGE_SIZEOF_SHORT_NAME]
Definition: pedump.c:281
WORD NumberOfRelocations
Definition: pedump.c:293
TW_UINT32 TW_UINT16 TW_UINT16 TW_MEMREF pData
Definition: twain.h:1830