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|
#===- object.py - Python Object Bindings --------------------*- python -*--===#
#
# The LLVM Compiler Infrastructure
#
# This file is distributed under the University of Illinois Open Source
# License. See LICENSE.TXT for details.
#
#===------------------------------------------------------------------------===#
from ctypes import c_char_p
from ctypes import c_uint64
from ctypes import c_void_p
from .common import LLVMObject
from .common import get_library
from .core import MemoryBuffer
__all__ = [
"lib",
"ObjectFile",
"Relocation",
"Section",
"Symbol",
]
class ObjectFile(object):
"""Represents an object/binary file."""
def __init__(self, filename=None, contents=None):
"""Construct an instance from a filename or binary data.
filename must be a path to a file that can be opened with open().
contents can be either a native Python buffer type (like str) or a
llvm.core.MemoryBuffer instance.
"""
if contents:
assert isinstance(contents, MemoryBuffer)
if filename is not None:
contents = MemoryBuffer(filename=filename)
self._memory = contents
self._obj = lib.LLVMCreateObjectFile(contents)
contents.release_ownership()
self._as_parameter_ = self._obj
def __del__(self):
lib.LLVMDisposeObjectFile(self)
def from_param(self):
return self._as_parameter_
def get_sections(self):
"""Obtain the sections in this object file.
This is an iterator for llvm.object.Section instances.
"""
pass
def get_symbols(self):
"""Obtain the symbols in this object file.
This is an iterator for llvm.object.Symbol instances.
"""
class Section(object):
"""Represents a section in an object file."""
def __init__(self, obj=None):
"""Construct a new section instance.
Section instances can currently only be created from an ObjectFile
instance. Therefore, this constructor should not be used outside of
this module.
"""
pass
def __del__(self):
pass
@property
def name(self):
pass
@property
def size(self):
pass
@property
def contents(self):
pass
@property
def address(self):
pass
# TODO consider exposing more Pythonic interface, like __contains__
def has_symbol(self, symbol):
pass
def get_relocations(self):
pass
class Symbol(object):
def __init__(self):
pass
@property
def name(self):
pass
@property
def address(self):
pass
@property
def file_offset(self):
pass
@property
def size(self):
pass
class Relocation(object):
def __init__(self):
pass
@property
def address(self):
pass
@property
def offset(self):
pass
@property
def symbol(self):
pass
@property
def type(self):
pass
@property
def type_name(self):
pass
@property
def value_string(self):
pass
SectionIteratorRef = c_void_p
SymbolIteratorRef = c_void_p
RelocationIteratorRef = c_void_p
def register_library(library):
"""Register function prototypes with LLVM library instance."""
# Object.h functions
library.LLVMCreateObjectFile.argtypes = [MemoryBuffer]
library.LLVMCreateObjectFile.restype = LLVMObject
library.LLVMDisposeObjectFile.argtypes = [ObjectFile]
library.LLVMGetSections.argtypes = [ObjectFile]
library.LLVMGetSections.restype = SectionIteratorRef
library.LLVMDisposeSectionIterator.argtypes = [SectionIteratorRef]
library.LLVMIsSectionIteratorAtEnd.argtypes = [ObjectFile,
SectionIteratorRef]
library.LLVMIsSectionIteratorAtEnd.restype = bool
library.LLVMMoveToNextSection.argtypes = [SectionIteratorRef]
library.LLVMMoveToContainingSection.argtypes = [SectionIteratorRef,
SymbolIteratorRef]
library.LLVMGetSymbols.argtypes = [ObjectFile]
library.LLVMGetSymbols.restype = SymbolIteratorRef
library.LLVMDisposeSymbolIterator.argtypes = [SymbolIteratorRef]
library.LLVMIsSymbolIteratorAtEnd.argtypes = [ObjectFile,
SymbolIteratorRef]
library.LLVMIsSymbolIteratorAtEnd.restype = bool
library.LLVMMoveToNextSymbol.argtypes = [SymbolIteratorRef]
library.LLVMGetSectionName.argtypes = [SectionIteratorRef]
library.LLVMGetSectionName.restype = c_char_p
library.LLVMGetSectionSize.argtypes = [SectionIteratorRef]
library.LLVMGetSectionSize.restype = c_uint64
library.LLVMGetSectionContents.argtypes = [SectionIteratorRef]
library.LLVMGetSectionContents.restype = c_char_p
library.LLVMGetSectionAddress.argtypes = [SectionIteratorRef]
library.LLVMGetSectionAddress.restype = c_uint64
library.LLVMGetSectionContainsSymbol.argtypes = [SectionIteratorRef,
SymbolIteratorRef]
library.LLVMGetSectionContainsSymbol.restype = bool
library.LLVMGetRelocations.argtypes = [SectionIteratorRef]
library.LLVMGetRelocations.restype = RelocationIteratorRef
library.LLVMDisposeRelocationIterator.argtypes = [RelocationIteratorRef]
library.LLVMIsRelocationIteratorAtEnd.argtypes = [SectionIteratorRef,
RelocationIteratorRef]
library.LLVMIsRelocationIteratorAtEnd.restype = bool
library.LLVMMoveToNextRelocation.argtypes = [RelocationIteratorRef]
library.LLVMGetSymbolName.argtypes = [SymbolIteratorRef]
library.LLVMGetSymbolName.restype = c_char_p
library.LLVMGetSymbolAddress.argtypes = [SymbolIteratorRef]
library.LLVMGetSymbolAddress.restype = c_uint64
library.LLVMGetSymbolFileOffset.argtypes = [SymbolIteratorRef]
library.LLVMGetSymbolFileOffset.restype = c_uint64
library.LLVMGetSymbolSize.argtypes = [SymbolIteratorRef]
library.LLVMGetSymbolSize.restype = c_uint64
library.LLVMGetRelocationAddress.argtypes = [SymbolIteratorRef]
library.LLVMGetRelocationAddress.restype = c_uint64
library.LLVMGetRelocationOffset.argtypes = [RelocationIteratorRef]
library.LLVMGetRelocationOffset.restype = c_uint64
library.LLVMGetRelocationSymbol.argtypes = [RelocationIteratorRef]
library.LLVMGetRelocationSymbol.restype = SymbolIteratorRef
library.LLVMGetRelocationType.argtypes = [RelocationIteratorRef]
library.LLVMGetRelocationType.restype = c_uint64
library.LLVMGetRelocationTypeName.argtypes = [RelocationIteratorRef]
library.LLVMGetRelocationTypeName.restype = c_char_p
library.LLVMGetRelocationValueString.argtypes = [RelocationIteratorRef]
library.LLVMGetRelocationValueString.restype = c_char_p
lib = get_library()
register_library(lib)
|
