mirror of
https://github.com/isledecomp/isle-portable.git
synced 2024-11-23 07:58:21 -05:00
f26c30974a
* Add draft for Ghidra function import script * feature: Basic PDB analysis [skip ci] This is a draft with a lot of open questions left. Please do not merge * Refactor: Introduce submodules and reload remedy * refactor types and make them Python 3.9 compatible * run black * WIP: save progress * fix types and small type safety violations * fix another Python 3.9 syntax incompatibility * Implement struct imports [skip ci] - This code is still in dire need of refactoring and tests - There are only single-digit issues left, and 2600 functions can be imported - The biggest remaining error is mismatched stacks * Refactor, implement enums, fix lots of bugs * fix Python 3.9 issue * refactor: address review comments Not sure why VS Code suddenly decides to remove some empty spaces, but they don't make sense anyway * add unit tests for new type parsers, fix linter issue * refactor: db access from pdb_extraction.py * Fix stack layout offset error * fix: Undo incorrect reference change * Fix CI issue * Improve READMEs (fix typos, add information) --------- Co-authored-by: jonschz <jonschz@users.noreply.github.com>
100 lines
3 KiB
Python
100 lines
3 KiB
Python
"""A collection of helper functions for the interaction with Ghidra."""
|
|
|
|
import logging
|
|
|
|
from lego_util.exceptions import (
|
|
ClassOrNamespaceNotFoundInGhidraError,
|
|
TypeNotFoundInGhidraError,
|
|
MultipleTypesFoundInGhidraError,
|
|
)
|
|
|
|
# Disable spurious warnings in vscode / pylance
|
|
# pyright: reportMissingModuleSource=false
|
|
|
|
from ghidra.program.model.data import PointerDataType
|
|
from ghidra.program.model.data import DataTypeConflictHandler
|
|
from ghidra.program.flatapi import FlatProgramAPI
|
|
from ghidra.program.model.data import DataType
|
|
from ghidra.program.model.symbol import Namespace
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
def get_ghidra_type(api: FlatProgramAPI, type_name: str):
|
|
"""
|
|
Searches for the type named `typeName` in Ghidra.
|
|
|
|
Raises:
|
|
- NotFoundInGhidraError
|
|
- MultipleTypesFoundInGhidraError
|
|
"""
|
|
result = api.getDataTypes(type_name)
|
|
if len(result) == 0:
|
|
raise TypeNotFoundInGhidraError(type_name)
|
|
if len(result) == 1:
|
|
return result[0]
|
|
|
|
raise MultipleTypesFoundInGhidraError(type_name, result)
|
|
|
|
|
|
def add_pointer_type(api: FlatProgramAPI, pointee: DataType) -> DataType:
|
|
new_data_type = PointerDataType(pointee)
|
|
new_data_type.setCategoryPath(pointee.getCategoryPath())
|
|
result_data_type = (
|
|
api.getCurrentProgram()
|
|
.getDataTypeManager()
|
|
.addDataType(new_data_type, DataTypeConflictHandler.KEEP_HANDLER)
|
|
)
|
|
if result_data_type is not new_data_type:
|
|
logger.debug(
|
|
"New pointer replaced by existing one. Fresh pointer: %s (class: %s)",
|
|
result_data_type,
|
|
result_data_type.__class__,
|
|
)
|
|
return result_data_type
|
|
|
|
|
|
def get_ghidra_namespace(
|
|
api: FlatProgramAPI, namespace_hierachy: list[str]
|
|
) -> Namespace:
|
|
namespace = api.getCurrentProgram().getGlobalNamespace()
|
|
for part in namespace_hierachy:
|
|
namespace = api.getNamespace(namespace, part)
|
|
if namespace is None:
|
|
raise ClassOrNamespaceNotFoundInGhidraError(namespace_hierachy)
|
|
return namespace
|
|
|
|
|
|
def create_ghidra_namespace(
|
|
api: FlatProgramAPI, namespace_hierachy: list[str]
|
|
) -> Namespace:
|
|
namespace = api.getCurrentProgram().getGlobalNamespace()
|
|
for part in namespace_hierachy:
|
|
namespace = api.getNamespace(namespace, part)
|
|
if namespace is None:
|
|
namespace = api.createNamespace(namespace, part)
|
|
return namespace
|
|
|
|
|
|
def sanitize_name(name: str) -> str:
|
|
"""
|
|
Takes a full class or function name and replaces characters not accepted by Ghidra.
|
|
Applies mostly to templates and names like `vbase destructor`.
|
|
"""
|
|
new_class_name = (
|
|
name.replace("<", "[")
|
|
.replace(">", "]")
|
|
.replace("*", "#")
|
|
.replace(" ", "_")
|
|
.replace("`", "'")
|
|
)
|
|
if "<" in name:
|
|
new_class_name = "_template_" + new_class_name
|
|
|
|
if new_class_name != name:
|
|
logger.warning(
|
|
"Class or function name contains characters forbidden by Ghidra, changing from '%s' to '%s'",
|
|
name,
|
|
new_class_name,
|
|
)
|
|
return new_class_name
|