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macho-dump: Basic Mach 64 support.

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llvm-svn: 98453
This commit is contained in:
Daniel Dunbar 2010-03-13 22:10:11 +00:00
parent ceaa2343e7
commit 119ef3dc11
1 changed files with 45 additions and 19 deletions
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64
test/Scripts/macho-dump
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@ -12,12 +12,10 @@ class Reader:
else:
self.file = open(path,'rb')
self.isLSB = None
self.is64Bit = None
self.string_table = None
def setLSB(self, isLSB):
self.isLSB = bool(isLSB)
def tell(self):
return self.file.tell()
@ -42,6 +40,9 @@ class Reader:
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]
@ -60,9 +61,13 @@ def dumpmacho(path, opts):
magic = f.read(4)
if magic == '\xFE\xED\xFA\xCE':
f.setLSB(False)
f.isLSB, f.is64Bit = False, False
elif magic == '\xCE\xFA\xED\xFE':
f.setLSB(True)
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
@ -79,6 +84,9 @@ def dumpmacho(path, opts):
print "('flag', %r)" % f.read32()
if f.is64Bit:
print "('reserved', %r)" % f.read32()
start = f.tell()
print "('load_commands', ["
@ -87,7 +95,8 @@ def dumpmacho(path, opts):
print "])"
if f.tell() - start != loadCommandsSize:
raise ValueError,"%s: warning: invalid load commands size: %r" % (sys.argv[0], loadCommandsSize)
raise ValueError,"%s: warning: invalid load commands size: %r" % (
sys.argv[0], loadCommandsSize)
def dumpLoadCommand(f, i, opts):
start = f.tell()
@ -99,28 +108,38 @@ def dumpLoadCommand(f, i, opts):
print " ('size', %r)" % cmdSize
if cmd == 1:
dumpSegmentLoadCommand32(f, opts)
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)
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)
raise ValueError,"%s: warning: invalid load command size: %r" % (
sys.argv[0], cmdSize)
def dumpSegmentLoadCommand32(f, opts):
def dumpSegmentLoadCommand(f, opts, is64Bit):
print " ('segment_name', %r)" % f.read(16)
print " ('vm_addr', %r)" % f.read32()
print " ('vm_size', %r)" % f.read32()
print " ('file_offset', %r)" % f.read32()
print " ('file_size', %r)" % f.read32()
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()
@ -129,7 +148,7 @@ def dumpSegmentLoadCommand32(f, opts):
print " ('sections', ["
for i in range(numSections):
dumpSection32(f, i, opts)
dumpSection(f, i, opts, is64Bit)
print " ])"
def dumpSymtabCommand(f, opts):
@ -206,13 +225,18 @@ def dumpDysymtabCommand(f, opts):
f.seek(prev_pos)
def dumpSection32(f, i, opts):
def dumpSection(f, i, opts, is64Bit):
print " # Section %r" % i
print " (('section_name', %r)" % f.read(16)
print " ('segment_name', %r)" % f.read(16)
print " ('address', %r)" % f.read32()
size = f.read32()
print " ('size', %r)" % size
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()
@ -223,6 +247,8 @@ def dumpSection32(f, i, opts):
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()