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[llvm.py] Implement interface to object files

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It is now possible to load object files and scan over sections, symbols,
and relocations! Includes test code with partial coverage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152482 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Gregory Szorc
2012-03-10 04:41:24 +00:00
parent 51cf866163
commit 61e22cd85c
10 changed files with 622 additions and 146 deletions
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27
bindings/python/llvm/core.py
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@ -8,21 +8,21 @@
#===------------------------------------------------------------------------===#
from .common import LLVMObject
from .common import c_object_p
from .common import get_library
from ctypes import POINTER
from ctypes import byref
from ctypes import c_char_p
from ctypes import c_void_p
__all__ = [
"lib",
"MemoryBufferRef",
"MemoryBuffer",
]
lib = get_library()
class MemoryBuffer(object):
class MemoryBuffer(LLVMObject):
"""Represents an opaque memory buffer."""
def __init__(self, filename=None):
@ -34,7 +34,7 @@ class MemoryBuffer(object):
if filename is None:
raise Exception("filename argument must be defined")
memory = LLVMObject()
memory = c_object_p()
out = c_char_p(None)
result = lib.LLVMCreateMemoryBufferWithContentsOfFile(filename,
@ -43,26 +43,13 @@ class MemoryBuffer(object):
if result:
raise Exception("Could not create memory buffer: %s" % out.value)
self._memory = memory
self._as_parameter_ = self._memory
self._owned = True
def __del__(self):
if self._owned:
lib.LLVMDisposeMemoryBuffer(self._memory)
def from_param(self):
return self._as_parameter_
def release_ownership(self):
self._owned = False
LLVMObject.__init__(self, memory, disposer=lib.LLVMDisposeMemoryBuffer)
def register_library(library):
library.LLVMCreateMemoryBufferWithContentsOfFile.argtypes = [c_char_p,
POINTER(LLVMObject), POINTER(c_char_p)]
POINTER(c_object_p), POINTER(c_char_p)]
library.LLVMCreateMemoryBufferWithContentsOfFile.restype = bool
library.LLVMDisposeMemoryBuffer.argtypes = [c_void_p]
library.LLVMDisposeMemoryBuffer.argtypes = [MemoryBuffer]
register_library(lib)