1 //===-- ObjectFilePECOFF.cpp ------------------------------------*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 #include "ObjectFilePECOFF.h"
11
12 #include "llvm/Support/MachO.h"
13
14 #include "lldb/Core/ArchSpec.h"
15 #include "lldb/Core/DataBuffer.h"
16 #include "lldb/Host/FileSpec.h"
17 #include "lldb/Core/FileSpecList.h"
18 #include "lldb/Core/Module.h"
19 #include "lldb/Core/ModuleSpec.h"
20 #include "lldb/Core/PluginManager.h"
21 #include "lldb/Core/Section.h"
22 #include "lldb/Core/StreamFile.h"
23 #include "lldb/Core/StreamString.h"
24 #include "lldb/Core/Timer.h"
25 #include "lldb/Core/UUID.h"
26 #include "lldb/Symbol/ObjectFile.h"
27
28 static uint32_t COFFMachineToMachCPU(uint16_t machine);
29
30 #define IMAGE_FILE_MACHINE_UNKNOWN 0x0000
31 #define IMAGE_FILE_MACHINE_AM33 0x01d3 // Matsushita AM33
32 #define IMAGE_FILE_MACHINE_AMD64 0x8664 // x64
33 #define IMAGE_FILE_MACHINE_ARM 0x01c0 // ARM little endian
34 #define IMAGE_FILE_MACHINE_EBC 0x0ebc // EFI byte code
35 #define IMAGE_FILE_MACHINE_I386 0x014c // Intel 386 or later processors and compatible processors
36 #define IMAGE_FILE_MACHINE_IA64 0x0200 // Intel Itanium processor family
37 #define IMAGE_FILE_MACHINE_M32R 0x9041 // Mitsubishi M32R little endian
38 #define IMAGE_FILE_MACHINE_MIPS16 0x0266 // MIPS16
39 #define IMAGE_FILE_MACHINE_MIPSFPU 0x0366 // MIPS with FPU
40 #define IMAGE_FILE_MACHINE_MIPSFPU16 0x0466 // MIPS16 with FPU
41 #define IMAGE_FILE_MACHINE_POWERPC 0x01f0 // Power PC little endian
42 #define IMAGE_FILE_MACHINE_POWERPCFP 0x01f1 // Power PC with floating point support
43 #define IMAGE_FILE_MACHINE_R4000 0x0166 // MIPS little endian
44 #define IMAGE_FILE_MACHINE_SH3 0x01a2 // Hitachi SH3
45 #define IMAGE_FILE_MACHINE_SH3DSP 0x01a3 // Hitachi SH3 DSP
46 #define IMAGE_FILE_MACHINE_SH4 0x01a6 // Hitachi SH4
47 #define IMAGE_FILE_MACHINE_SH5 0x01a8 // Hitachi SH5
48 #define IMAGE_FILE_MACHINE_THUMB 0x01c2 // Thumb
49 #define IMAGE_FILE_MACHINE_WCEMIPSV2 0x0169 // MIPS little-endian WCE v2
50
51
52 #define IMAGE_DOS_SIGNATURE 0x5A4D // MZ
53 #define IMAGE_OS2_SIGNATURE 0x454E // NE
54 #define IMAGE_OS2_SIGNATURE_LE 0x454C // LE
55 #define IMAGE_NT_SIGNATURE 0x00004550 // PE00
56 #define OPT_HEADER_MAGIC_PE32 0x010b
57 #define OPT_HEADER_MAGIC_PE32_PLUS 0x020b
58
59 #define IMAGE_FILE_RELOCS_STRIPPED 0x0001
60 #define IMAGE_FILE_EXECUTABLE_IMAGE 0x0002
61 #define IMAGE_FILE_LINE_NUMS_STRIPPED 0x0004
62 #define IMAGE_FILE_LOCAL_SYMS_STRIPPED 0x0008
63 #define IMAGE_FILE_AGGRESSIVE_WS_TRIM 0x0010
64 #define IMAGE_FILE_LARGE_ADDRESS_AWARE 0x0020
65 //#define 0x0040 // Reserved
66 #define IMAGE_FILE_BYTES_REVERSED_LO 0x0080
67 #define IMAGE_FILE_32BIT_MACHINE 0x0100
68 #define IMAGE_FILE_DEBUG_STRIPPED 0x0200
69 #define IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP 0x0400
70 #define IMAGE_FILE_NET_RUN_FROM_SWAP 0x0800
71 #define IMAGE_FILE_SYSTEM 0x1000
72 #define IMAGE_FILE_DLL 0x2000
73 #define IMAGE_FILE_UP_SYSTEM_ONLY 0x4000
74 #define IMAGE_FILE_BYTES_REVERSED_HI 0x8000
75
76
77 // Section Flags
78 // The section flags in the Characteristics field of the section header indicate
79 // characteristics of the section.
80 #define IMAGE_SCN_TYPE_NO_PAD 0x00000008 // The section should not be padded to the next boundary. This flag is obsolete and is replaced by IMAGE_SCN_ALIGN_1BYTES. This is valid only for object files.
81 #define IMAGE_SCN_CNT_CODE 0x00000020 // The section contains executable code.
82 #define IMAGE_SCN_CNT_INITIALIZED_DATA 0x00000040 // The section contains initialized data.
83 #define IMAGE_SCN_CNT_UNINITIALIZED_DATA 0x00000080 // The section contains uninitialized data.
84 #define IMAGE_SCN_LNK_OTHER 0x00000100 // Reserved for future use.
85 #define IMAGE_SCN_LNK_INFO 0x00000200 // The section contains comments or other information. The .drectve section has this type. This is valid for object files only.
86 #define IMAGE_SCN_LNK_REMOVE 0x00000800 // The section will not become part of the image. This is valid only for object files.
87 #define IMAGE_SCN_LNK_COMDAT 0x00001000 // The section contains COMDAT data. For more information, see section 5.5.6, “COMDAT Sections (Object Only).” This is valid only for object files.
88 #define IMAGE_SCN_GPREL 0x00008000 // The section contains data referenced through the global pointer (GP).
89 #define IMAGE_SCN_MEM_PURGEABLE 0x00020000
90 #define IMAGE_SCN_MEM_16BIT 0x00020000 // For ARM machine types, the section contains Thumb code. Reserved for future use with other machine types.
91 #define IMAGE_SCN_MEM_LOCKED 0x00040000
92 #define IMAGE_SCN_MEM_PRELOAD 0x00080000
93 #define IMAGE_SCN_ALIGN_1BYTES 0x00100000 // Align data on a 1-byte boundary. Valid only for object files.
94 #define IMAGE_SCN_ALIGN_2BYTES 0x00200000 // Align data on a 2-byte boundary. Valid only for object files.
95 #define IMAGE_SCN_ALIGN_4BYTES 0x00300000 // Align data on a 4-byte boundary. Valid only for object files.
96 #define IMAGE_SCN_ALIGN_8BYTES 0x00400000 // Align data on an 8-byte boundary. Valid only for object files.
97 #define IMAGE_SCN_ALIGN_16BYTES 0x00500000 // Align data on a 16-byte boundary. Valid only for object files.
98 #define IMAGE_SCN_ALIGN_32BYTES 0x00600000 // Align data on a 32-byte boundary. Valid only for object files.
99 #define IMAGE_SCN_ALIGN_64BYTES 0x00700000 // Align data on a 64-byte boundary. Valid only for object files.
100 #define IMAGE_SCN_ALIGN_128BYTES 0x00800000 // Align data on a 128-byte boundary. Valid only for object files.
101 #define IMAGE_SCN_ALIGN_256BYTES 0x00900000 // Align data on a 256-byte boundary. Valid only for object files.
102 #define IMAGE_SCN_ALIGN_512BYTES 0x00A00000 // Align data on a 512-byte boundary. Valid only for object files.
103 #define IMAGE_SCN_ALIGN_1024BYTES 0x00B00000 // Align data on a 1024-byte boundary. Valid only for object files.
104 #define IMAGE_SCN_ALIGN_2048BYTES 0x00C00000 // Align data on a 2048-byte boundary. Valid only for object files.
105 #define IMAGE_SCN_ALIGN_4096BYTES 0x00D00000 // Align data on a 4096-byte boundary. Valid only for object files.
106 #define IMAGE_SCN_ALIGN_8192BYTES 0x00E00000 // Align data on an 8192-byte boundary. Valid only for object files.
107 #define IMAGE_SCN_LNK_NRELOC_OVFL 0x01000000 // The section contains extended relocations.
108 #define IMAGE_SCN_MEM_DISCARDABLE 0x02000000 // The section can be discarded as needed.
109 #define IMAGE_SCN_MEM_NOT_CACHED 0x04000000 // The section cannot be cached.
110 #define IMAGE_SCN_MEM_NOT_PAGED 0x08000000 // The section is not pageable.
111 #define IMAGE_SCN_MEM_SHARED 0x10000000 // The section can be shared in memory.
112 #define IMAGE_SCN_MEM_EXECUTE 0x20000000 // The section can be executed as code.
113 #define IMAGE_SCN_MEM_READ 0x40000000 // The section can be read.
114 #define IMAGE_SCN_MEM_WRITE 0x80000000 // The section can be written to.
115
116 using namespace lldb;
117 using namespace lldb_private;
118
119 void
Initialize()120 ObjectFilePECOFF::Initialize()
121 {
122 PluginManager::RegisterPlugin (GetPluginNameStatic(),
123 GetPluginDescriptionStatic(),
124 CreateInstance,
125 CreateMemoryInstance,
126 GetModuleSpecifications);
127 }
128
129 void
Terminate()130 ObjectFilePECOFF::Terminate()
131 {
132 PluginManager::UnregisterPlugin (CreateInstance);
133 }
134
135
136 lldb_private::ConstString
GetPluginNameStatic()137 ObjectFilePECOFF::GetPluginNameStatic()
138 {
139 static ConstString g_name("pe-coff");
140 return g_name;
141 }
142
143 const char *
GetPluginDescriptionStatic()144 ObjectFilePECOFF::GetPluginDescriptionStatic()
145 {
146 return "Portable Executable and Common Object File Format object file reader (32 and 64 bit)";
147 }
148
149
150 ObjectFile *
CreateInstance(const lldb::ModuleSP & module_sp,DataBufferSP & data_sp,lldb::offset_t data_offset,const lldb_private::FileSpec * file,lldb::offset_t file_offset,lldb::offset_t length)151 ObjectFilePECOFF::CreateInstance (const lldb::ModuleSP &module_sp,
152 DataBufferSP& data_sp,
153 lldb::offset_t data_offset,
154 const lldb_private::FileSpec* file,
155 lldb::offset_t file_offset,
156 lldb::offset_t length)
157 {
158 if (!data_sp)
159 {
160 data_sp = file->MemoryMapFileContents(file_offset, length);
161 data_offset = 0;
162 }
163
164 if (ObjectFilePECOFF::MagicBytesMatch(data_sp))
165 {
166 // Update the data to contain the entire file if it doesn't already
167 if (data_sp->GetByteSize() < length)
168 data_sp = file->MemoryMapFileContents(file_offset, length);
169 std::unique_ptr<ObjectFile> objfile_ap(new ObjectFilePECOFF (module_sp, data_sp, data_offset, file, file_offset, length));
170 if (objfile_ap.get() && objfile_ap->ParseHeader())
171 return objfile_ap.release();
172 }
173 return NULL;
174 }
175
176 ObjectFile *
CreateMemoryInstance(const lldb::ModuleSP & module_sp,lldb::DataBufferSP & data_sp,const lldb::ProcessSP & process_sp,lldb::addr_t header_addr)177 ObjectFilePECOFF::CreateMemoryInstance (const lldb::ModuleSP &module_sp,
178 lldb::DataBufferSP& data_sp,
179 const lldb::ProcessSP &process_sp,
180 lldb::addr_t header_addr)
181 {
182 return NULL;
183 }
184
185 size_t
GetModuleSpecifications(const lldb_private::FileSpec & file,lldb::DataBufferSP & data_sp,lldb::offset_t data_offset,lldb::offset_t file_offset,lldb::offset_t length,lldb_private::ModuleSpecList & specs)186 ObjectFilePECOFF::GetModuleSpecifications (const lldb_private::FileSpec& file,
187 lldb::DataBufferSP& data_sp,
188 lldb::offset_t data_offset,
189 lldb::offset_t file_offset,
190 lldb::offset_t length,
191 lldb_private::ModuleSpecList &specs)
192 {
193 return 0;
194 }
195
196
197 bool
MagicBytesMatch(DataBufferSP & data_sp)198 ObjectFilePECOFF::MagicBytesMatch (DataBufferSP& data_sp)
199 {
200 DataExtractor data(data_sp, eByteOrderLittle, 4);
201 lldb::offset_t offset = 0;
202 uint16_t magic = data.GetU16 (&offset);
203 return magic == IMAGE_DOS_SIGNATURE;
204 }
205
206
ObjectFilePECOFF(const lldb::ModuleSP & module_sp,DataBufferSP & data_sp,lldb::offset_t data_offset,const FileSpec * file,lldb::offset_t file_offset,lldb::offset_t length)207 ObjectFilePECOFF::ObjectFilePECOFF (const lldb::ModuleSP &module_sp,
208 DataBufferSP& data_sp,
209 lldb::offset_t data_offset,
210 const FileSpec* file,
211 lldb::offset_t file_offset,
212 lldb::offset_t length) :
213 ObjectFile (module_sp, file, file_offset, length, data_sp, data_offset),
214 m_dos_header (),
215 m_coff_header (),
216 m_coff_header_opt (),
217 m_sect_headers ()
218 {
219 ::memset (&m_dos_header, 0, sizeof(m_dos_header));
220 ::memset (&m_coff_header, 0, sizeof(m_coff_header));
221 ::memset (&m_coff_header_opt, 0, sizeof(m_coff_header_opt));
222 }
223
224
~ObjectFilePECOFF()225 ObjectFilePECOFF::~ObjectFilePECOFF()
226 {
227 }
228
229
230 bool
ParseHeader()231 ObjectFilePECOFF::ParseHeader ()
232 {
233 ModuleSP module_sp(GetModule());
234 if (module_sp)
235 {
236 lldb_private::Mutex::Locker locker(module_sp->GetMutex());
237 m_sect_headers.clear();
238 m_data.SetByteOrder (eByteOrderLittle);
239 lldb::offset_t offset = 0;
240
241 if (ParseDOSHeader())
242 {
243 offset = m_dos_header.e_lfanew;
244 uint32_t pe_signature = m_data.GetU32 (&offset);
245 if (pe_signature != IMAGE_NT_SIGNATURE)
246 return false;
247 if (ParseCOFFHeader(&offset))
248 {
249 if (m_coff_header.hdrsize > 0)
250 ParseCOFFOptionalHeader(&offset);
251 ParseSectionHeaders (offset);
252 }
253 return true;
254 }
255 }
256 return false;
257 }
258
259
260 ByteOrder
GetByteOrder() const261 ObjectFilePECOFF::GetByteOrder () const
262 {
263 return eByteOrderLittle;
264 }
265
266 bool
IsExecutable() const267 ObjectFilePECOFF::IsExecutable() const
268 {
269 return (m_coff_header.flags & IMAGE_FILE_DLL) == 0;
270 }
271
272 uint32_t
GetAddressByteSize() const273 ObjectFilePECOFF::GetAddressByteSize () const
274 {
275 if (m_coff_header_opt.magic == OPT_HEADER_MAGIC_PE32_PLUS)
276 return 8;
277 else if (m_coff_header_opt.magic == OPT_HEADER_MAGIC_PE32)
278 return 4;
279 return 4;
280 }
281
282 //----------------------------------------------------------------------
283 // NeedsEndianSwap
284 //
285 // Return true if an endian swap needs to occur when extracting data
286 // from this file.
287 //----------------------------------------------------------------------
288 bool
NeedsEndianSwap() const289 ObjectFilePECOFF::NeedsEndianSwap() const
290 {
291 #if defined(__LITTLE_ENDIAN__)
292 return false;
293 #else
294 return true;
295 #endif
296 }
297 //----------------------------------------------------------------------
298 // ParseDOSHeader
299 //----------------------------------------------------------------------
300 bool
ParseDOSHeader()301 ObjectFilePECOFF::ParseDOSHeader ()
302 {
303 bool success = false;
304 lldb::offset_t offset = 0;
305 success = m_data.ValidOffsetForDataOfSize(0, sizeof(m_dos_header));
306
307 if (success)
308 {
309 m_dos_header.e_magic = m_data.GetU16(&offset); // Magic number
310 success = m_dos_header.e_magic == IMAGE_DOS_SIGNATURE;
311
312 if (success)
313 {
314 m_dos_header.e_cblp = m_data.GetU16(&offset); // Bytes on last page of file
315 m_dos_header.e_cp = m_data.GetU16(&offset); // Pages in file
316 m_dos_header.e_crlc = m_data.GetU16(&offset); // Relocations
317 m_dos_header.e_cparhdr = m_data.GetU16(&offset); // Size of header in paragraphs
318 m_dos_header.e_minalloc = m_data.GetU16(&offset); // Minimum extra paragraphs needed
319 m_dos_header.e_maxalloc = m_data.GetU16(&offset); // Maximum extra paragraphs needed
320 m_dos_header.e_ss = m_data.GetU16(&offset); // Initial (relative) SS value
321 m_dos_header.e_sp = m_data.GetU16(&offset); // Initial SP value
322 m_dos_header.e_csum = m_data.GetU16(&offset); // Checksum
323 m_dos_header.e_ip = m_data.GetU16(&offset); // Initial IP value
324 m_dos_header.e_cs = m_data.GetU16(&offset); // Initial (relative) CS value
325 m_dos_header.e_lfarlc = m_data.GetU16(&offset); // File address of relocation table
326 m_dos_header.e_ovno = m_data.GetU16(&offset); // Overlay number
327
328 m_dos_header.e_res[0] = m_data.GetU16(&offset); // Reserved words
329 m_dos_header.e_res[1] = m_data.GetU16(&offset); // Reserved words
330 m_dos_header.e_res[2] = m_data.GetU16(&offset); // Reserved words
331 m_dos_header.e_res[3] = m_data.GetU16(&offset); // Reserved words
332
333 m_dos_header.e_oemid = m_data.GetU16(&offset); // OEM identifier (for e_oeminfo)
334 m_dos_header.e_oeminfo = m_data.GetU16(&offset); // OEM information; e_oemid specific
335 m_dos_header.e_res2[0] = m_data.GetU16(&offset); // Reserved words
336 m_dos_header.e_res2[1] = m_data.GetU16(&offset); // Reserved words
337 m_dos_header.e_res2[2] = m_data.GetU16(&offset); // Reserved words
338 m_dos_header.e_res2[3] = m_data.GetU16(&offset); // Reserved words
339 m_dos_header.e_res2[4] = m_data.GetU16(&offset); // Reserved words
340 m_dos_header.e_res2[5] = m_data.GetU16(&offset); // Reserved words
341 m_dos_header.e_res2[6] = m_data.GetU16(&offset); // Reserved words
342 m_dos_header.e_res2[7] = m_data.GetU16(&offset); // Reserved words
343 m_dos_header.e_res2[8] = m_data.GetU16(&offset); // Reserved words
344 m_dos_header.e_res2[9] = m_data.GetU16(&offset); // Reserved words
345
346 m_dos_header.e_lfanew = m_data.GetU32(&offset); // File address of new exe header
347 }
348 }
349 if (!success)
350 memset(&m_dos_header, 0, sizeof(m_dos_header));
351 return success;
352 }
353
354
355 //----------------------------------------------------------------------
356 // ParserCOFFHeader
357 //----------------------------------------------------------------------
358 bool
ParseCOFFHeader(lldb::offset_t * offset_ptr)359 ObjectFilePECOFF::ParseCOFFHeader(lldb::offset_t *offset_ptr)
360 {
361 bool success = m_data.ValidOffsetForDataOfSize (*offset_ptr, sizeof(m_coff_header));
362 if (success)
363 {
364 m_coff_header.machine = m_data.GetU16(offset_ptr);
365 m_coff_header.nsects = m_data.GetU16(offset_ptr);
366 m_coff_header.modtime = m_data.GetU32(offset_ptr);
367 m_coff_header.symoff = m_data.GetU32(offset_ptr);
368 m_coff_header.nsyms = m_data.GetU32(offset_ptr);
369 m_coff_header.hdrsize = m_data.GetU16(offset_ptr);
370 m_coff_header.flags = m_data.GetU16(offset_ptr);
371 }
372 if (!success)
373 memset(&m_coff_header, 0, sizeof(m_coff_header));
374 return success;
375 }
376
377 bool
ParseCOFFOptionalHeader(lldb::offset_t * offset_ptr)378 ObjectFilePECOFF::ParseCOFFOptionalHeader(lldb::offset_t *offset_ptr)
379 {
380 bool success = false;
381 const lldb::offset_t end_offset = *offset_ptr + m_coff_header.hdrsize;
382 if (*offset_ptr < end_offset)
383 {
384 success = true;
385 m_coff_header_opt.magic = m_data.GetU16(offset_ptr);
386 m_coff_header_opt.major_linker_version = m_data.GetU8 (offset_ptr);
387 m_coff_header_opt.minor_linker_version = m_data.GetU8 (offset_ptr);
388 m_coff_header_opt.code_size = m_data.GetU32(offset_ptr);
389 m_coff_header_opt.data_size = m_data.GetU32(offset_ptr);
390 m_coff_header_opt.bss_size = m_data.GetU32(offset_ptr);
391 m_coff_header_opt.entry = m_data.GetU32(offset_ptr);
392 m_coff_header_opt.code_offset = m_data.GetU32(offset_ptr);
393
394 const uint32_t addr_byte_size = GetAddressByteSize ();
395
396 if (*offset_ptr < end_offset)
397 {
398 if (m_coff_header_opt.magic == OPT_HEADER_MAGIC_PE32)
399 {
400 // PE32 only
401 m_coff_header_opt.data_offset = m_data.GetU32(offset_ptr);
402 }
403 else
404 m_coff_header_opt.data_offset = 0;
405
406 if (*offset_ptr < end_offset)
407 {
408 m_coff_header_opt.image_base = m_data.GetMaxU64 (offset_ptr, addr_byte_size);
409 m_coff_header_opt.sect_alignment = m_data.GetU32(offset_ptr);
410 m_coff_header_opt.file_alignment = m_data.GetU32(offset_ptr);
411 m_coff_header_opt.major_os_system_version = m_data.GetU16(offset_ptr);
412 m_coff_header_opt.minor_os_system_version = m_data.GetU16(offset_ptr);
413 m_coff_header_opt.major_image_version = m_data.GetU16(offset_ptr);
414 m_coff_header_opt.minor_image_version = m_data.GetU16(offset_ptr);
415 m_coff_header_opt.major_subsystem_version = m_data.GetU16(offset_ptr);
416 m_coff_header_opt.minor_subsystem_version = m_data.GetU16(offset_ptr);
417 m_coff_header_opt.reserved1 = m_data.GetU32(offset_ptr);
418 m_coff_header_opt.image_size = m_data.GetU32(offset_ptr);
419 m_coff_header_opt.header_size = m_data.GetU32(offset_ptr);
420 m_coff_header_opt.checksum = m_data.GetU32(offset_ptr);
421 m_coff_header_opt.subsystem = m_data.GetU16(offset_ptr);
422 m_coff_header_opt.dll_flags = m_data.GetU16(offset_ptr);
423 m_coff_header_opt.stack_reserve_size = m_data.GetMaxU64 (offset_ptr, addr_byte_size);
424 m_coff_header_opt.stack_commit_size = m_data.GetMaxU64 (offset_ptr, addr_byte_size);
425 m_coff_header_opt.heap_reserve_size = m_data.GetMaxU64 (offset_ptr, addr_byte_size);
426 m_coff_header_opt.heap_commit_size = m_data.GetMaxU64 (offset_ptr, addr_byte_size);
427 m_coff_header_opt.loader_flags = m_data.GetU32(offset_ptr);
428 uint32_t num_data_dir_entries = m_data.GetU32(offset_ptr);
429 m_coff_header_opt.data_dirs.clear();
430 m_coff_header_opt.data_dirs.resize(num_data_dir_entries);
431 uint32_t i;
432 for (i=0; i<num_data_dir_entries; i++)
433 {
434 m_coff_header_opt.data_dirs[i].vmaddr = m_data.GetU32(offset_ptr);
435 m_coff_header_opt.data_dirs[i].vmsize = m_data.GetU32(offset_ptr);
436 }
437 }
438 }
439 }
440 // Make sure we are on track for section data which follows
441 *offset_ptr = end_offset;
442 return success;
443 }
444
445
446 //----------------------------------------------------------------------
447 // ParseSectionHeaders
448 //----------------------------------------------------------------------
449 bool
ParseSectionHeaders(uint32_t section_header_data_offset)450 ObjectFilePECOFF::ParseSectionHeaders (uint32_t section_header_data_offset)
451 {
452 const uint32_t nsects = m_coff_header.nsects;
453 m_sect_headers.clear();
454
455 if (nsects > 0)
456 {
457 const uint32_t addr_byte_size = GetAddressByteSize ();
458 const size_t section_header_byte_size = nsects * sizeof(section_header_t);
459 DataBufferSP section_header_data_sp(m_file.ReadFileContents (section_header_data_offset, section_header_byte_size));
460 DataExtractor section_header_data (section_header_data_sp, GetByteOrder(), addr_byte_size);
461
462 lldb::offset_t offset = 0;
463 if (section_header_data.ValidOffsetForDataOfSize (offset, section_header_byte_size))
464 {
465 m_sect_headers.resize(nsects);
466
467 for (uint32_t idx = 0; idx<nsects; ++idx)
468 {
469 const void *name_data = section_header_data.GetData(&offset, 8);
470 if (name_data)
471 {
472 memcpy(m_sect_headers[idx].name, name_data, 8);
473 m_sect_headers[idx].vmsize = section_header_data.GetU32(&offset);
474 m_sect_headers[idx].vmaddr = section_header_data.GetU32(&offset);
475 m_sect_headers[idx].size = section_header_data.GetU32(&offset);
476 m_sect_headers[idx].offset = section_header_data.GetU32(&offset);
477 m_sect_headers[idx].reloff = section_header_data.GetU32(&offset);
478 m_sect_headers[idx].lineoff = section_header_data.GetU32(&offset);
479 m_sect_headers[idx].nreloc = section_header_data.GetU16(&offset);
480 m_sect_headers[idx].nline = section_header_data.GetU16(&offset);
481 m_sect_headers[idx].flags = section_header_data.GetU32(&offset);
482 }
483 }
484 }
485 }
486
487 return m_sect_headers.empty() == false;
488 }
489
490 bool
GetSectionName(std::string & sect_name,const section_header_t & sect)491 ObjectFilePECOFF::GetSectionName(std::string& sect_name, const section_header_t& sect)
492 {
493 if (sect.name[0] == '/')
494 {
495 lldb::offset_t stroff = strtoul(§.name[1], NULL, 10);
496 lldb::offset_t string_file_offset = m_coff_header.symoff + (m_coff_header.nsyms * 18) + stroff;
497 const char *name = m_data.GetCStr (&string_file_offset);
498 if (name)
499 {
500 sect_name = name;
501 return true;
502 }
503
504 return false;
505 }
506 sect_name = sect.name;
507 return true;
508 }
509
510 //----------------------------------------------------------------------
511 // GetNListSymtab
512 //----------------------------------------------------------------------
513 Symtab *
GetSymtab()514 ObjectFilePECOFF::GetSymtab()
515 {
516 ModuleSP module_sp(GetModule());
517 if (module_sp)
518 {
519 lldb_private::Mutex::Locker locker(module_sp->GetMutex());
520 if (m_symtab_ap.get() == NULL)
521 {
522 SectionList *sect_list = GetSectionList();
523 m_symtab_ap.reset(new Symtab(this));
524 Mutex::Locker symtab_locker (m_symtab_ap->GetMutex());
525
526 const uint32_t num_syms = m_coff_header.nsyms;
527
528 if (num_syms > 0 && m_coff_header.symoff > 0)
529 {
530 const uint32_t symbol_size = 18;
531 const uint32_t addr_byte_size = GetAddressByteSize ();
532 const size_t symbol_data_size = num_syms * symbol_size;
533 // Include the 4 bytes string table size at the end of the symbols
534 DataBufferSP symtab_data_sp(m_file.ReadFileContents (m_coff_header.symoff, symbol_data_size + 4));
535 DataExtractor symtab_data (symtab_data_sp, GetByteOrder(), addr_byte_size);
536 lldb::offset_t offset = symbol_data_size;
537 const uint32_t strtab_size = symtab_data.GetU32 (&offset);
538 DataBufferSP strtab_data_sp(m_file.ReadFileContents (m_coff_header.symoff + symbol_data_size, strtab_size));
539 DataExtractor strtab_data (strtab_data_sp, GetByteOrder(), addr_byte_size);
540
541 // First 4 bytes should be zeroed after strtab_size has been read,
542 // because it is used as offset 0 to encode a NULL string.
543 uint32_t* strtab_data_start = (uint32_t*)strtab_data_sp->GetBytes();
544 strtab_data_start[0] = 0;
545
546 offset = 0;
547 std::string symbol_name;
548 Symbol *symbols = m_symtab_ap->Resize (num_syms);
549 for (uint32_t i=0; i<num_syms; ++i)
550 {
551 coff_symbol_t symbol;
552 const uint32_t symbol_offset = offset;
553 const char *symbol_name_cstr = NULL;
554 // If the first 4 bytes of the symbol string are zero, then we
555 // it is followed by a 4 byte string table offset. Else these
556 // 8 bytes contain the symbol name
557 if (symtab_data.GetU32 (&offset) == 0)
558 {
559 // Long string that doesn't fit into the symbol table name,
560 // so now we must read the 4 byte string table offset
561 uint32_t strtab_offset = symtab_data.GetU32 (&offset);
562 symbol_name_cstr = strtab_data.PeekCStr (strtab_offset);
563 symbol_name.assign (symbol_name_cstr);
564 }
565 else
566 {
567 // Short string that fits into the symbol table name which is 8 bytes
568 offset += sizeof(symbol.name) - 4; // Skip remaining
569 symbol_name_cstr = symtab_data.PeekCStr (symbol_offset);
570 if (symbol_name_cstr == NULL)
571 break;
572 symbol_name.assign (symbol_name_cstr, sizeof(symbol.name));
573 }
574 symbol.value = symtab_data.GetU32 (&offset);
575 symbol.sect = symtab_data.GetU16 (&offset);
576 symbol.type = symtab_data.GetU16 (&offset);
577 symbol.storage = symtab_data.GetU8 (&offset);
578 symbol.naux = symtab_data.GetU8 (&offset);
579 symbols[i].GetMangled ().SetValue (ConstString(symbol_name.c_str()));
580 if ((int16_t)symbol.sect >= 1)
581 {
582 Address symbol_addr(sect_list->GetSectionAtIndex(symbol.sect-1), symbol.value);
583 symbols[i].GetAddress() = symbol_addr;
584 }
585
586 if (symbol.naux > 0)
587 {
588 i += symbol.naux;
589 offset += symbol_size;
590 }
591 }
592
593 }
594 }
595 }
596 return m_symtab_ap.get();
597
598 }
599
600 bool
IsStripped()601 ObjectFilePECOFF::IsStripped ()
602 {
603 // TODO: determine this for COFF
604 return false;
605 }
606
607
608
609 void
CreateSections(SectionList & unified_section_list)610 ObjectFilePECOFF::CreateSections (SectionList &unified_section_list)
611 {
612 if (!m_sections_ap.get())
613 {
614 m_sections_ap.reset(new SectionList());
615
616 ModuleSP module_sp(GetModule());
617 if (module_sp)
618 {
619 lldb_private::Mutex::Locker locker(module_sp->GetMutex());
620 const uint32_t nsects = m_sect_headers.size();
621 ModuleSP module_sp (GetModule());
622 for (uint32_t idx = 0; idx<nsects; ++idx)
623 {
624 std::string sect_name;
625 GetSectionName (sect_name, m_sect_headers[idx]);
626 ConstString const_sect_name (sect_name.c_str());
627 static ConstString g_code_sect_name (".code");
628 static ConstString g_CODE_sect_name ("CODE");
629 static ConstString g_data_sect_name (".data");
630 static ConstString g_DATA_sect_name ("DATA");
631 static ConstString g_bss_sect_name (".bss");
632 static ConstString g_BSS_sect_name ("BSS");
633 static ConstString g_debug_sect_name (".debug");
634 static ConstString g_reloc_sect_name (".reloc");
635 static ConstString g_stab_sect_name (".stab");
636 static ConstString g_stabstr_sect_name (".stabstr");
637 static ConstString g_sect_name_dwarf_debug_abbrev (".debug_abbrev");
638 static ConstString g_sect_name_dwarf_debug_aranges (".debug_aranges");
639 static ConstString g_sect_name_dwarf_debug_frame (".debug_frame");
640 static ConstString g_sect_name_dwarf_debug_info (".debug_info");
641 static ConstString g_sect_name_dwarf_debug_line (".debug_line");
642 static ConstString g_sect_name_dwarf_debug_loc (".debug_loc");
643 static ConstString g_sect_name_dwarf_debug_macinfo (".debug_macinfo");
644 static ConstString g_sect_name_dwarf_debug_pubnames (".debug_pubnames");
645 static ConstString g_sect_name_dwarf_debug_pubtypes (".debug_pubtypes");
646 static ConstString g_sect_name_dwarf_debug_ranges (".debug_ranges");
647 static ConstString g_sect_name_dwarf_debug_str (".debug_str");
648 static ConstString g_sect_name_eh_frame (".eh_frame");
649 SectionType section_type = eSectionTypeOther;
650 if (m_sect_headers[idx].flags & IMAGE_SCN_CNT_CODE &&
651 ((const_sect_name == g_code_sect_name) || (const_sect_name == g_CODE_sect_name)))
652 {
653 section_type = eSectionTypeCode;
654 }
655 else if (m_sect_headers[idx].flags & IMAGE_SCN_CNT_INITIALIZED_DATA &&
656 ((const_sect_name == g_data_sect_name) || (const_sect_name == g_DATA_sect_name)))
657 {
658 section_type = eSectionTypeData;
659 }
660 else if (m_sect_headers[idx].flags & IMAGE_SCN_CNT_UNINITIALIZED_DATA &&
661 ((const_sect_name == g_bss_sect_name) || (const_sect_name == g_BSS_sect_name)))
662 {
663 if (m_sect_headers[idx].size == 0)
664 section_type = eSectionTypeZeroFill;
665 else
666 section_type = eSectionTypeData;
667 }
668 else if (const_sect_name == g_debug_sect_name)
669 {
670 section_type = eSectionTypeDebug;
671 }
672 else if (const_sect_name == g_stabstr_sect_name)
673 {
674 section_type = eSectionTypeDataCString;
675 }
676 else if (const_sect_name == g_reloc_sect_name)
677 {
678 section_type = eSectionTypeOther;
679 }
680 else if (const_sect_name == g_sect_name_dwarf_debug_abbrev) section_type = eSectionTypeDWARFDebugAbbrev;
681 else if (const_sect_name == g_sect_name_dwarf_debug_aranges) section_type = eSectionTypeDWARFDebugAranges;
682 else if (const_sect_name == g_sect_name_dwarf_debug_frame) section_type = eSectionTypeDWARFDebugFrame;
683 else if (const_sect_name == g_sect_name_dwarf_debug_info) section_type = eSectionTypeDWARFDebugInfo;
684 else if (const_sect_name == g_sect_name_dwarf_debug_line) section_type = eSectionTypeDWARFDebugLine;
685 else if (const_sect_name == g_sect_name_dwarf_debug_loc) section_type = eSectionTypeDWARFDebugLoc;
686 else if (const_sect_name == g_sect_name_dwarf_debug_macinfo) section_type = eSectionTypeDWARFDebugMacInfo;
687 else if (const_sect_name == g_sect_name_dwarf_debug_pubnames) section_type = eSectionTypeDWARFDebugPubNames;
688 else if (const_sect_name == g_sect_name_dwarf_debug_pubtypes) section_type = eSectionTypeDWARFDebugPubTypes;
689 else if (const_sect_name == g_sect_name_dwarf_debug_ranges) section_type = eSectionTypeDWARFDebugRanges;
690 else if (const_sect_name == g_sect_name_dwarf_debug_str) section_type = eSectionTypeDWARFDebugStr;
691 else if (const_sect_name == g_sect_name_eh_frame) section_type = eSectionTypeEHFrame;
692 else if (m_sect_headers[idx].flags & IMAGE_SCN_CNT_CODE)
693 {
694 section_type = eSectionTypeCode;
695 }
696 else if (m_sect_headers[idx].flags & IMAGE_SCN_CNT_INITIALIZED_DATA)
697 {
698 section_type = eSectionTypeData;
699 }
700 else if (m_sect_headers[idx].flags & IMAGE_SCN_CNT_UNINITIALIZED_DATA)
701 {
702 if (m_sect_headers[idx].size == 0)
703 section_type = eSectionTypeZeroFill;
704 else
705 section_type = eSectionTypeData;
706 }
707
708 // Use a segment ID of the segment index shifted left by 8 so they
709 // never conflict with any of the sections.
710 SectionSP section_sp (new Section (module_sp, // Module to which this section belongs
711 this, // Object file to which this section belongs
712 idx + 1, // Section ID is the 1 based segment index shifted right by 8 bits as not to collide with any of the 256 section IDs that are possible
713 const_sect_name, // Name of this section
714 section_type, // This section is a container of other sections.
715 m_coff_header_opt.image_base + m_sect_headers[idx].vmaddr, // File VM address == addresses as they are found in the object file
716 m_sect_headers[idx].vmsize, // VM size in bytes of this section
717 m_sect_headers[idx].offset, // Offset to the data for this section in the file
718 m_sect_headers[idx].size, // Size in bytes of this section as found in the the file
719 m_sect_headers[idx].flags)); // Flags for this section
720
721 //section_sp->SetIsEncrypted (segment_is_encrypted);
722
723 unified_section_list.AddSection(section_sp);
724 m_sections_ap->AddSection (section_sp);
725 }
726 }
727 }
728 }
729
730 bool
GetUUID(UUID * uuid)731 ObjectFilePECOFF::GetUUID (UUID* uuid)
732 {
733 return false;
734 }
735
736 uint32_t
GetDependentModules(FileSpecList & files)737 ObjectFilePECOFF::GetDependentModules (FileSpecList& files)
738 {
739 return 0;
740 }
741
742
743 //----------------------------------------------------------------------
744 // Dump
745 //
746 // Dump the specifics of the runtime file container (such as any headers
747 // segments, sections, etc).
748 //----------------------------------------------------------------------
749 void
Dump(Stream * s)750 ObjectFilePECOFF::Dump(Stream *s)
751 {
752 ModuleSP module_sp(GetModule());
753 if (module_sp)
754 {
755 lldb_private::Mutex::Locker locker(module_sp->GetMutex());
756 s->Printf("%p: ", this);
757 s->Indent();
758 s->PutCString("ObjectFilePECOFF");
759
760 ArchSpec header_arch;
761 GetArchitecture (header_arch);
762
763 *s << ", file = '" << m_file << "', arch = " << header_arch.GetArchitectureName() << "\n";
764
765 SectionList *sections = GetSectionList();
766 if (sections)
767 sections->Dump(s, NULL, true, UINT32_MAX);
768
769 if (m_symtab_ap.get())
770 m_symtab_ap->Dump(s, NULL, eSortOrderNone);
771
772 if (m_dos_header.e_magic)
773 DumpDOSHeader (s, m_dos_header);
774 if (m_coff_header.machine)
775 {
776 DumpCOFFHeader (s, m_coff_header);
777 if (m_coff_header.hdrsize)
778 DumpOptCOFFHeader (s, m_coff_header_opt);
779 }
780 s->EOL();
781 DumpSectionHeaders(s);
782 s->EOL();
783 }
784 }
785
786 //----------------------------------------------------------------------
787 // DumpDOSHeader
788 //
789 // Dump the MS-DOS header to the specified output stream
790 //----------------------------------------------------------------------
791 void
DumpDOSHeader(Stream * s,const dos_header_t & header)792 ObjectFilePECOFF::DumpDOSHeader(Stream *s, const dos_header_t& header)
793 {
794 s->PutCString ("MSDOS Header\n");
795 s->Printf (" e_magic = 0x%4.4x\n", header.e_magic);
796 s->Printf (" e_cblp = 0x%4.4x\n", header.e_cblp);
797 s->Printf (" e_cp = 0x%4.4x\n", header.e_cp);
798 s->Printf (" e_crlc = 0x%4.4x\n", header.e_crlc);
799 s->Printf (" e_cparhdr = 0x%4.4x\n", header.e_cparhdr);
800 s->Printf (" e_minalloc = 0x%4.4x\n", header.e_minalloc);
801 s->Printf (" e_maxalloc = 0x%4.4x\n", header.e_maxalloc);
802 s->Printf (" e_ss = 0x%4.4x\n", header.e_ss);
803 s->Printf (" e_sp = 0x%4.4x\n", header.e_sp);
804 s->Printf (" e_csum = 0x%4.4x\n", header.e_csum);
805 s->Printf (" e_ip = 0x%4.4x\n", header.e_ip);
806 s->Printf (" e_cs = 0x%4.4x\n", header.e_cs);
807 s->Printf (" e_lfarlc = 0x%4.4x\n", header.e_lfarlc);
808 s->Printf (" e_ovno = 0x%4.4x\n", header.e_ovno);
809 s->Printf (" e_res[4] = { 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x }\n",
810 header.e_res[0],
811 header.e_res[1],
812 header.e_res[2],
813 header.e_res[3]);
814 s->Printf (" e_oemid = 0x%4.4x\n", header.e_oemid);
815 s->Printf (" e_oeminfo = 0x%4.4x\n", header.e_oeminfo);
816 s->Printf (" e_res2[10] = { 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x }\n",
817 header.e_res2[0],
818 header.e_res2[1],
819 header.e_res2[2],
820 header.e_res2[3],
821 header.e_res2[4],
822 header.e_res2[5],
823 header.e_res2[6],
824 header.e_res2[7],
825 header.e_res2[8],
826 header.e_res2[9]);
827 s->Printf (" e_lfanew = 0x%8.8x\n", header.e_lfanew);
828 }
829
830 //----------------------------------------------------------------------
831 // DumpCOFFHeader
832 //
833 // Dump the COFF header to the specified output stream
834 //----------------------------------------------------------------------
835 void
DumpCOFFHeader(Stream * s,const coff_header_t & header)836 ObjectFilePECOFF::DumpCOFFHeader(Stream *s, const coff_header_t& header)
837 {
838 s->PutCString ("COFF Header\n");
839 s->Printf (" machine = 0x%4.4x\n", header.machine);
840 s->Printf (" nsects = 0x%4.4x\n", header.nsects);
841 s->Printf (" modtime = 0x%8.8x\n", header.modtime);
842 s->Printf (" symoff = 0x%8.8x\n", header.symoff);
843 s->Printf (" nsyms = 0x%8.8x\n", header.nsyms);
844 s->Printf (" hdrsize = 0x%4.4x\n", header.hdrsize);
845 }
846
847 //----------------------------------------------------------------------
848 // DumpOptCOFFHeader
849 //
850 // Dump the optional COFF header to the specified output stream
851 //----------------------------------------------------------------------
852 void
DumpOptCOFFHeader(Stream * s,const coff_opt_header_t & header)853 ObjectFilePECOFF::DumpOptCOFFHeader(Stream *s, const coff_opt_header_t& header)
854 {
855 s->PutCString ("Optional COFF Header\n");
856 s->Printf (" magic = 0x%4.4x\n", header.magic);
857 s->Printf (" major_linker_version = 0x%2.2x\n", header.major_linker_version);
858 s->Printf (" minor_linker_version = 0x%2.2x\n", header.minor_linker_version);
859 s->Printf (" code_size = 0x%8.8x\n", header.code_size);
860 s->Printf (" data_size = 0x%8.8x\n", header.data_size);
861 s->Printf (" bss_size = 0x%8.8x\n", header.bss_size);
862 s->Printf (" entry = 0x%8.8x\n", header.entry);
863 s->Printf (" code_offset = 0x%8.8x\n", header.code_offset);
864 s->Printf (" data_offset = 0x%8.8x\n", header.data_offset);
865 s->Printf (" image_base = 0x%16.16" PRIx64 "\n", header.image_base);
866 s->Printf (" sect_alignment = 0x%8.8x\n", header.sect_alignment);
867 s->Printf (" file_alignment = 0x%8.8x\n", header.file_alignment);
868 s->Printf (" major_os_system_version = 0x%4.4x\n", header.major_os_system_version);
869 s->Printf (" minor_os_system_version = 0x%4.4x\n", header.minor_os_system_version);
870 s->Printf (" major_image_version = 0x%4.4x\n", header.major_image_version);
871 s->Printf (" minor_image_version = 0x%4.4x\n", header.minor_image_version);
872 s->Printf (" major_subsystem_version = 0x%4.4x\n", header.major_subsystem_version);
873 s->Printf (" minor_subsystem_version = 0x%4.4x\n", header.minor_subsystem_version);
874 s->Printf (" reserved1 = 0x%8.8x\n", header.reserved1);
875 s->Printf (" image_size = 0x%8.8x\n", header.image_size);
876 s->Printf (" header_size = 0x%8.8x\n", header.header_size);
877 s->Printf (" checksum = 0x%8.8x\n", header.checksum);
878 s->Printf (" subsystem = 0x%4.4x\n", header.subsystem);
879 s->Printf (" dll_flags = 0x%4.4x\n", header.dll_flags);
880 s->Printf (" stack_reserve_size = 0x%16.16" PRIx64 "\n", header.stack_reserve_size);
881 s->Printf (" stack_commit_size = 0x%16.16" PRIx64 "\n", header.stack_commit_size);
882 s->Printf (" heap_reserve_size = 0x%16.16" PRIx64 "\n", header.heap_reserve_size);
883 s->Printf (" heap_commit_size = 0x%16.16" PRIx64 "\n", header.heap_commit_size);
884 s->Printf (" loader_flags = 0x%8.8x\n", header.loader_flags);
885 s->Printf (" num_data_dir_entries = 0x%8.8zx\n", header.data_dirs.size());
886 uint32_t i;
887 for (i=0; i<header.data_dirs.size(); i++)
888 {
889 s->Printf (" data_dirs[%2u] vmaddr = 0x%8.8x, vmsize = 0x%8.8x\n",
890 i,
891 header.data_dirs[i].vmaddr,
892 header.data_dirs[i].vmsize);
893 }
894 }
895 //----------------------------------------------------------------------
896 // DumpSectionHeader
897 //
898 // Dump a single ELF section header to the specified output stream
899 //----------------------------------------------------------------------
900 void
DumpSectionHeader(Stream * s,const section_header_t & sh)901 ObjectFilePECOFF::DumpSectionHeader(Stream *s, const section_header_t& sh)
902 {
903 std::string name;
904 GetSectionName(name, sh);
905 s->Printf ("%-16s 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%4.4x 0x%4.4x 0x%8.8x\n",
906 name.c_str(),
907 sh.vmaddr,
908 sh.vmsize,
909 sh.offset,
910 sh.size,
911 sh.reloff,
912 sh.lineoff,
913 sh.nreloc,
914 sh.nline,
915 sh.flags);
916 }
917
918
919 //----------------------------------------------------------------------
920 // DumpSectionHeaders
921 //
922 // Dump all of the ELF section header to the specified output stream
923 //----------------------------------------------------------------------
924 void
DumpSectionHeaders(Stream * s)925 ObjectFilePECOFF::DumpSectionHeaders(Stream *s)
926 {
927
928 s->PutCString ("Section Headers\n");
929 s->PutCString ("IDX name vm addr vm size file off file size reloc off line off nreloc nline flags\n");
930 s->PutCString ("==== ---------------- ---------- ---------- ---------- ---------- ---------- ---------- ------ ------ ----------\n");
931
932 uint32_t idx = 0;
933 SectionHeaderCollIter pos, end = m_sect_headers.end();
934
935 for (pos = m_sect_headers.begin(); pos != end; ++pos, ++idx)
936 {
937 s->Printf ("[%2u] ", idx);
938 ObjectFilePECOFF::DumpSectionHeader(s, *pos);
939 }
940 }
941
942 static bool
COFFMachineToMachCPU(uint16_t machine,ArchSpec & arch)943 COFFMachineToMachCPU (uint16_t machine, ArchSpec &arch)
944 {
945 switch (machine)
946 {
947 case IMAGE_FILE_MACHINE_AMD64:
948 case IMAGE_FILE_MACHINE_IA64:
949 arch.SetArchitecture (eArchTypeMachO,
950 llvm::MachO::CPUTypeX86_64,
951 llvm::MachO::CPUSubType_X86_64_ALL);
952 return true;
953
954 case IMAGE_FILE_MACHINE_I386:
955 arch.SetArchitecture (eArchTypeMachO,
956 llvm::MachO::CPUTypeI386,
957 llvm::MachO::CPUSubType_I386_ALL);
958 return true;
959
960 case IMAGE_FILE_MACHINE_POWERPC:
961 case IMAGE_FILE_MACHINE_POWERPCFP:
962 arch.SetArchitecture (eArchTypeMachO,
963 llvm::MachO::CPUTypePowerPC,
964 llvm::MachO::CPUSubType_POWERPC_ALL);
965 return true;
966 case IMAGE_FILE_MACHINE_ARM:
967 case IMAGE_FILE_MACHINE_THUMB:
968 arch.SetArchitecture (eArchTypeMachO,
969 llvm::MachO::CPUTypeARM,
970 llvm::MachO::CPUSubType_ARM_V7);
971 return true;
972 }
973 return false;
974 }
975 bool
GetArchitecture(ArchSpec & arch)976 ObjectFilePECOFF::GetArchitecture (ArchSpec &arch)
977 {
978 // For index zero return our cpu type
979 return COFFMachineToMachCPU (m_coff_header.machine, arch);
980 }
981
982 ObjectFile::Type
CalculateType()983 ObjectFilePECOFF::CalculateType()
984 {
985 if (m_coff_header.machine != 0)
986 {
987 if ((m_coff_header.flags & IMAGE_FILE_DLL) == 0)
988 return eTypeExecutable;
989 else
990 return eTypeSharedLibrary;
991 }
992 return eTypeExecutable;
993 }
994
995 ObjectFile::Strata
CalculateStrata()996 ObjectFilePECOFF::CalculateStrata()
997 {
998 return eStrataUser;
999 }
1000 //------------------------------------------------------------------
1001 // PluginInterface protocol
1002 //------------------------------------------------------------------
1003 ConstString
GetPluginName()1004 ObjectFilePECOFF::GetPluginName()
1005 {
1006 return GetPluginNameStatic();
1007 }
1008
1009 uint32_t
GetPluginVersion()1010 ObjectFilePECOFF::GetPluginVersion()
1011 {
1012 return 1;
1013 }
1014
1015