mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 03:33:20 +01:00
290 lines
8.2 KiB
Python
Executable File
290 lines
8.2 KiB
Python
Executable File
#!/usr/bin/env python
|
|
|
|
import struct
|
|
import sys
|
|
import StringIO
|
|
|
|
class Reader:
|
|
def __init__(self, path):
|
|
if path == '-':
|
|
# Snarf all the data so we can seek.
|
|
self.file = StringIO.StringIO(sys.stdin.read())
|
|
else:
|
|
self.file = open(path,'rb')
|
|
self.isLSB = None
|
|
self.is64Bit = None
|
|
|
|
self.string_table = None
|
|
|
|
def tell(self):
|
|
return self.file.tell()
|
|
|
|
def seek(self, pos):
|
|
self.file.seek(pos)
|
|
|
|
def read(self, N):
|
|
data = self.file.read(N)
|
|
if len(data) != N:
|
|
raise ValueError,"Out of data!"
|
|
return data
|
|
|
|
def read8(self):
|
|
return ord(self.read(1))
|
|
|
|
def read16(self):
|
|
return struct.unpack('><'[self.isLSB] + 'H', self.read(2))[0]
|
|
|
|
def read32(self):
|
|
# Force to 32-bit, if possible; otherwise these might be long ints on a
|
|
# big-endian platform. FIXME: Why???
|
|
Value = struct.unpack('><'[self.isLSB] + 'I', self.read(4))[0]
|
|
return int(Value)
|
|
|
|
def read64(self):
|
|
return struct.unpack('><'[self.isLSB] + 'Q', self.read(8))[0]
|
|
|
|
def registerStringTable(self, strings):
|
|
if self.string_table is not None:
|
|
raise ValueError,"%s: warning: multiple string tables" % sys.argv[0]
|
|
|
|
self.string_table = strings
|
|
|
|
def getString(self, index):
|
|
if self.string_table is None:
|
|
raise ValueError,"%s: warning: no string table registered" % sys.argv[0]
|
|
|
|
end = self.string_table.index('\x00', index)
|
|
return self.string_table[index:end]
|
|
|
|
def dumpmacho(path, opts):
|
|
f = Reader(path)
|
|
|
|
magic = f.read(4)
|
|
if magic == '\xFE\xED\xFA\xCE':
|
|
f.isLSB, f.is64Bit = False, False
|
|
elif magic == '\xCE\xFA\xED\xFE':
|
|
f.isLSB, f.is64Bit = True, False
|
|
elif magic == '\xFE\xED\xFA\xCF':
|
|
f.isLSB, f.is64Bit = False, True
|
|
elif magic == '\xCF\xFA\xED\xFE':
|
|
f.isLSB, f.is64Bit = True, True
|
|
else:
|
|
raise ValueError,"Not a Mach-O object file: %r (bad magic)" % path
|
|
|
|
print "('cputype', %r)" % f.read32()
|
|
print "('cpusubtype', %r)" % f.read32()
|
|
filetype = f.read32()
|
|
print "('filetype', %r)" % filetype
|
|
|
|
numLoadCommands = f.read32()
|
|
print "('num_load_commands', %r)" % filetype
|
|
|
|
loadCommandsSize = f.read32()
|
|
print "('load_commands_size', %r)" % loadCommandsSize
|
|
|
|
print "('flag', %r)" % f.read32()
|
|
|
|
if f.is64Bit:
|
|
print "('reserved', %r)" % f.read32()
|
|
|
|
start = f.tell()
|
|
|
|
print "('load_commands', ["
|
|
for i in range(numLoadCommands):
|
|
dumpLoadCommand(f, i, opts)
|
|
print "])"
|
|
|
|
if f.tell() - start != loadCommandsSize:
|
|
raise ValueError,"%s: warning: invalid load commands size: %r" % (
|
|
sys.argv[0], loadCommandsSize)
|
|
|
|
def dumpLoadCommand(f, i, opts):
|
|
start = f.tell()
|
|
|
|
print " # Load Command %r" % i
|
|
cmd = f.read32()
|
|
print " (('command', %r)" % cmd
|
|
cmdSize = f.read32()
|
|
print " ('size', %r)" % cmdSize
|
|
|
|
if cmd == 1:
|
|
dumpSegmentLoadCommand(f, opts, False)
|
|
elif cmd == 2:
|
|
dumpSymtabCommand(f, opts)
|
|
elif cmd == 11:
|
|
dumpDysymtabCommand(f, opts)
|
|
elif cmd == 25:
|
|
dumpSegmentLoadCommand(f, opts, True)
|
|
elif cmd == 27:
|
|
import uuid
|
|
print " ('uuid', %s)" % uuid.UUID(bytes=f.read(16))
|
|
else:
|
|
print >>sys.stderr,"%s: warning: unknown load command: %r" % (
|
|
sys.argv[0], cmd)
|
|
f.read(cmdSize - 8)
|
|
print " ),"
|
|
|
|
if f.tell() - start != cmdSize:
|
|
raise ValueError,"%s: warning: invalid load command size: %r" % (
|
|
sys.argv[0], cmdSize)
|
|
|
|
def dumpSegmentLoadCommand(f, opts, is64Bit):
|
|
print " ('segment_name', %r)" % f.read(16)
|
|
if is64Bit:
|
|
print " ('vm_addr', %r)" % f.read64()
|
|
print " ('vm_size', %r)" % f.read64()
|
|
print " ('file_offset', %r)" % f.read64()
|
|
print " ('file_size', %r)" % f.read64()
|
|
else:
|
|
print " ('vm_addr', %r)" % f.read32()
|
|
print " ('vm_size', %r)" % f.read32()
|
|
print " ('file_offset', %r)" % f.read32()
|
|
print " ('file_size', %r)" % f.read32()
|
|
print " ('maxprot', %r)" % f.read32()
|
|
print " ('initprot', %r)" % f.read32()
|
|
numSections = f.read32()
|
|
print " ('num_sections', %r)" % numSections
|
|
print " ('flags', %r)" % f.read32()
|
|
|
|
print " ('sections', ["
|
|
for i in range(numSections):
|
|
dumpSection(f, i, opts, is64Bit)
|
|
print " ])"
|
|
|
|
def dumpSymtabCommand(f, opts):
|
|
symoff = f.read32()
|
|
print " ('symoff', %r)" % symoff
|
|
nsyms = f.read32()
|
|
print " ('nsyms', %r)" % nsyms
|
|
stroff = f.read32()
|
|
print " ('stroff', %r)" % stroff
|
|
strsize = f.read32()
|
|
print " ('strsize', %r)" % strsize
|
|
|
|
prev_pos = f.tell()
|
|
|
|
f.seek(stroff)
|
|
string_data = f.read(strsize)
|
|
print " ('_string_data', %r)" % string_data
|
|
|
|
f.registerStringTable(string_data)
|
|
|
|
f.seek(symoff)
|
|
print " ('_symbols', ["
|
|
for i in range(nsyms):
|
|
dumpNlist32(f, i, opts)
|
|
print " ])"
|
|
|
|
f.seek(prev_pos)
|
|
|
|
def dumpNlist32(f, i, opts):
|
|
print " # Symbol %r" % i
|
|
n_strx = f.read32()
|
|
print " (('n_strx', %r)" % n_strx
|
|
n_type = f.read8()
|
|
print " ('n_type', %#x)" % n_type
|
|
n_sect = f.read8()
|
|
print " ('n_sect', %r)" % n_sect
|
|
n_desc = f.read16()
|
|
print " ('n_desc', %r)" % n_desc
|
|
if f.is64Bit:
|
|
n_value = f.read64()
|
|
print " ('n_value', %r)" % n_value
|
|
else:
|
|
n_value = f.read32()
|
|
print " ('n_value', %r)" % n_value
|
|
print " ('_string', %r)" % f.getString(n_strx)
|
|
print " ),"
|
|
|
|
def dumpDysymtabCommand(f, opts):
|
|
print " ('ilocalsym', %r)" % f.read32()
|
|
print " ('nlocalsym', %r)" % f.read32()
|
|
print " ('iextdefsym', %r)" % f.read32()
|
|
print " ('nextdefsym', %r)" % f.read32()
|
|
print " ('iundefsym', %r)" % f.read32()
|
|
print " ('nundefsym', %r)" % f.read32()
|
|
print " ('tocoff', %r)" % f.read32()
|
|
print " ('ntoc', %r)" % f.read32()
|
|
print " ('modtaboff', %r)" % f.read32()
|
|
print " ('nmodtab', %r)" % f.read32()
|
|
print " ('extrefsymoff', %r)" % f.read32()
|
|
print " ('nextrefsyms', %r)" % f.read32()
|
|
indirectsymoff = f.read32()
|
|
print " ('indirectsymoff', %r)" % indirectsymoff
|
|
nindirectsyms = f.read32()
|
|
print " ('nindirectsyms', %r)" % nindirectsyms
|
|
print " ('extreloff', %r)" % f.read32()
|
|
print " ('nextrel', %r)" % f.read32()
|
|
print " ('locreloff', %r)" % f.read32()
|
|
print " ('nlocrel', %r)" % f.read32()
|
|
|
|
prev_pos = f.tell()
|
|
|
|
f.seek(indirectsymoff)
|
|
print " ('_indirect_symbols', ["
|
|
for i in range(nindirectsyms):
|
|
print " # Indirect Symbol %r" % i
|
|
print " (('symbol_index', %#x),)," % f.read32()
|
|
print " ])"
|
|
|
|
f.seek(prev_pos)
|
|
|
|
def dumpSection(f, i, opts, is64Bit):
|
|
print " # Section %r" % i
|
|
print " (('section_name', %r)" % f.read(16)
|
|
print " ('segment_name', %r)" % f.read(16)
|
|
if is64Bit:
|
|
print " ('address', %r)" % f.read64()
|
|
size = f.read64()
|
|
print " ('size', %r)" % size
|
|
else:
|
|
print " ('address', %r)" % f.read32()
|
|
size = f.read32()
|
|
print " ('size', %r)" % size
|
|
offset = f.read32()
|
|
print " ('offset', %r)" % offset
|
|
print " ('alignment', %r)" % f.read32()
|
|
reloc_offset = f.read32()
|
|
print " ('reloc_offset', %r)" % reloc_offset
|
|
num_reloc = f.read32()
|
|
print " ('num_reloc', %r)" % num_reloc
|
|
print " ('flags', %#x)" % f.read32()
|
|
print " ('reserved1', %r)" % f.read32()
|
|
print " ('reserved2', %r)" % f.read32()
|
|
if is64Bit:
|
|
print " ('reserved3', %r)" % f.read32()
|
|
print " ),"
|
|
|
|
prev_pos = f.tell()
|
|
|
|
f.seek(reloc_offset)
|
|
print " ('_relocations', ["
|
|
for i in range(num_reloc):
|
|
print " # Relocation %r" % i
|
|
print " (('word-0', %#x)," % f.read32()
|
|
print " ('word-1', %#x))," % f.read32()
|
|
print " ])"
|
|
|
|
if opts.dumpSectionData:
|
|
f.seek(offset)
|
|
print " ('_section_data', %r)" % f.read(size)
|
|
|
|
f.seek(prev_pos)
|
|
|
|
def main():
|
|
from optparse import OptionParser, OptionGroup
|
|
parser = OptionParser("usage: %prog [options] {files}")
|
|
parser.add_option("", "--dump-section-data", dest="dumpSectionData",
|
|
help="Dump the contents of sections",
|
|
action="store_true", default=False)
|
|
(opts, args) = parser.parse_args()
|
|
|
|
if not args:
|
|
args.append('-')
|
|
|
|
for arg in args:
|
|
dumpmacho(arg, opts)
|
|
|
|
if __name__ == '__main__':
|
|
main()
|