ippm: add example native plugin cross compiled with zig cc

Author: williballenthin

.gitmodules

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+[submodule "plugins/plugin-manager/examples/native-ida-plugin/src/deps/zig-cross"]
+	path = plugins/plugin-manager/examples/native-ida-plugin/src/deps/zig-cross
+	url = git@github.com:mrexodia/zig-cross.git

plugins/plugin-manager/examples/native-ida-plugin/.gitignore

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+build-*/
+dist/
+build/

plugins/plugin-manager/examples/native-ida-plugin/README.md

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+# native-ida-plugin
+
+## Build
+
+Have the following installed:
+  - cmake
+  - zig
+  - just
+  - python, with package `build`
+
+```
+$ export IDASDK=~/.idapro/sdk/idasdk91/
+$ just build
+```
+
+Then find the output file in `dist/native_ida_plugin-0.1.0-py3-none-any.whl`.

plugins/plugin-manager/examples/native-ida-plugin/bin/native_ida_plugin/.gitignore

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+mysample.so
+mysample.dll
+mysample_x86_64.dylib
+mysample_aarch64.dylib

plugins/plugin-manager/examples/native-ida-plugin/justfile

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+_build target:
+    cmake -B "build-{{target}}" -DCMAKE_TOOLCHAIN_FILE="deps/zig-cross/{{target}}.cmake" -S src/ -Wno-dev
+    rm -f $IDASDK/bin/plugins/mysample.*
+    cmake --build "build-{{target}}" --target all
+    mv -f $IDASDK/bin/plugins/mysample.* "build-{{target}}/"
+
+build-linux-x86_64: (_build "x86_64-linux-gnu")
+build-macos-x86_64: (_build "x86_64-macos-none")
+build-macos-aarch64: (_build "aarch64-macos-none")
+build-windows-x86_64: (_build "x86_64-windows-gnu")
+
+build-wheel:
+    cp build-x86_64-linux-gnu/mysample.so bin/native_ida_plugin/mysample.so
+    cp build-x86_64-macos-none/mysample.dylib bin/native_ida_plugin/mysample_x86_64.dylib
+    cp build-aarch64-macos-none/mysample.dylib bin/native_ida_plugin/mysample_aarch64.dylib
+    cp build-x86_64-windows-gnu/mysample.dll bin/native_ida_plugin/mysample.dll
+    python -m build --wheel
+
+build: build-linux-x86_64 build-macos-x86_64 build-macos-aarch64 build-windows-x86_64 build-wheel
+
+clean-wheel:
+    rm -rf bin/native_ida_plugin/* build/ dist/
+
+_clean target:
+    -cmake --build "build-{{target}}" --target clean
+    rm -rf "build-{{target}}"
+
+clean-linux-x86_64: (_clean "x86_64-linux-gnu")
+clean-macos-x86_64: (_clean "x86_64-macos-none")
+clean-macos-aarch64: (_clean "aarch64-macos-none")
+clean-windows-x86_64: (_clean "x86_64-windows-gnu")
+
+clean: clean-linux-x86_64 clean-macos-x86_64 clean-macos-aarch64 clean-windows-x86_64 clean-wheel

plugins/plugin-manager/examples/native-ida-plugin/pyproject.toml

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+[project]
+name = "williballenthin-native-ida-plugin"
+authors = [
+  {name = "Willi Ballenthin", email = "wballenthin@google.com"},
+]
+description = "Example IDA Plugin (native)"
+version = "0.1.0"
+readme = "README.md"
+license = "Apache-2.0"
+requires-python = ">=3.9"
+dependencies = []
+
+[project.entry-points.'idapro.plugins']
+aarch64-apple-darwin = "native_ida_plugin:mysample_aarch64"
+x86_64-apple-darwin  = "native_ida_plugin:mysample_x86_64"
+x86_64-unknown-linux = "native_ida_plugin:mysample"
+x86_64-pc-windows    = "native_ida_plugin:mysample"
+
+[build-system]
+requires = ["setuptools>=61.0"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools]
+package-dir = {"" = "bin"}  # Python package data is found in "bin/" directory.
+                            # "src/" is the default, but we'll use "bin/" for all this binary data.
+
+[tool.setuptools.package-data]
+"native_ida_plugin" = [
+    # filenames relative to: bin/native_ida_plugin/
+    "mysample.dll",
+    "mysample.so",
+    "mysample_aarch64.dylib",
+    "mysample_x86_64.dylib",
+]

plugins/plugin-manager/examples/native-ida-plugin/src/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.27 FATAL_ERROR)
+
+project(mysample)
+
+set(CMAKE_CXX_STANDARD 17)
+
+include($ENV{IDASDK}/ida-cmake/idasdk.cmake)
+
+set(PLUGIN_NAME              mysample)
+set(PLUGIN_SOURCES           mysample.cpp)
+
+generate()
+disable_ida_warnings(mysample)

plugins/plugin-manager/examples/native-ida-plugin/src/deps/zig-cross

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+#include <ida.hpp>
+#include <idp.hpp>
+#include <loader.hpp>
+#include <kernwin.hpp>
+
+//--------------------------------------------------------------------------
+struct plugin_ctx_t : public plugmod_t
+{
+    bool idaapi run(size_t) override
+    {
+        msg("Hello from native!\n");
+        return true;
+    }
+};
+
+//--------------------------------------------------------------------------
+plugin_t PLUGIN =
+{
+    IDP_INTERFACE_VERSION,
+    PLUGIN_UNL | PLUGIN_MULTI,
+    []()->plugmod_t* {return new plugin_ctx_t; }, // initialize
+    nullptr,
+    nullptr,
+    "This is an example native plugin (comment)", // long comment about the plugin
+    "This is an example native plugin",           // multiline help about the plugin
+    "Example native plugin",                      // the preferred short name of the plugin
+    nullptr,                                      // the preferred hotkey to run the plugin
+};