mirror of
https://github.com/NationalSecurityAgency/ghidra.git
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36c6c8ef77
Apply golang runtime function signatures from info stored in json api snapshot files. The api snapshot files are created by a custom go helper program that uses the go compiler parser to parse the go toolchain source tree and writes the discovered function and type info into a json file. The go-api-parser helper program is based off of work contributed by github user monoidic via issue #6367. Updates generic functions to take a generic dictionary RTTI parameter (mostly to allow correct assignment of other parameters). Updates closure functions to take a closure context parameter. Closure contexts are passed via a register that is not involved in normal parameter passing. Tweaks the signature of gcWriteBarrier functions so that they don't mess up decompilation of functions that use them.
46 lines
1.7 KiB
Java
46 lines
1.7 KiB
Java
/* ###
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* IP: GHIDRA
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// Assigns custom storage for params of a golang function to match golang's abi-internal
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// register-based calling convention, or abi0 (all stack based) if abi-internal is not
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// specified for the arch.
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//@category Functions
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//@menupath Tools.Fix Golang Function Param Storage
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import ghidra.app.script.GhidraScript;
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import ghidra.app.util.bin.format.golang.GoFunctionFixup;
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import ghidra.app.util.bin.format.golang.GoVer;
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import ghidra.app.util.bin.format.golang.rtti.GoRttiMapper;
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import ghidra.program.model.listing.Function;
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public class FixupGolangFuncParamStorageScript extends GhidraScript {
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@Override
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protected void run() throws Exception {
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Function func;
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if (currentAddress == null || (func = getFunctionContaining(currentAddress)) == null) {
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return;
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}
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GoVer goVersion = GoVer.fromProgramProperties(currentProgram);
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if (goVersion == GoVer.INVALID) {
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goVersion = askChoice("Golang Version", "What is the golang version?",
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GoRttiMapper.getAllSupportedVersions(), GoVer.INVALID);
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}
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println("Fixing param storage for function %s@%s".formatted(func.getName(),
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func.getEntryPoint()));
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GoFunctionFixup fixup = new GoFunctionFixup(func, goVersion);
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fixup.apply();
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}
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}
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