From de6abe347a682b6d8ccebf95ebb97e5b4fabb09c Mon Sep 17 00:00:00 2001
From: pancake <pancake@nopcode.org>
Date: Wed, 13 May 2026 15:56:34 +0200
Subject: [PATCH] Add meson build

---
 .github/workflows/ci.yml | 29 +++++++++++++++
 .gitignore               |  3 +-
 README.md                | 11 ++++++
 meson.build              | 76 ++++++++++++++++++++++++++++++++++++++++
 meson_options.txt        | 13 +++++++
 5 files changed, 131 insertions(+), 1 deletion(-)
 create mode 100644 meson.build
 create mode 100644 meson_options.txt

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7e83801..fa28c2d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -32,6 +32,35 @@ jobs:
       - name: Build plugin
         run: make plugin
 
+  meson:
+    name: Meson (${{ matrix.os }})
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-24.04, macos-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+
+      - name: Install Meson
+        run: |
+          python3 -m pip install --user meson ninja
+          echo "$(python3 -m site --user-base)/bin" >> "$GITHUB_PATH"
+
+      - name: Install radare2
+        id: r2
+        uses: radareorg/github-actions@v1
+
+      - name: Configure
+        run: meson setup build
+
+      - name: Build
+        run: meson compile -C build
+
+      - name: Test
+        run: meson test -C build --print-errorlogs
+
   debian:
     name: Build Debian package
     runs-on: ubuntu-latest
diff --git a/.gitignore b/.gitignore
index bbd1eff..a71a6c8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,6 +4,8 @@
 # Build artifacts
 *.o
 /r2unity
+/build/
+/builddir/
 /src/r2/*.dylib
 /src/r2/*.so
 /src/r2/*.dll
@@ -19,4 +21,3 @@
 
 # Third-party reference checkouts (radare2, il2cpp dumper, etc.)
 /third_party/
-
diff --git a/README.md b/README.md
index 936b692..1b5647f 100644
--- a/README.md
+++ b/README.md
@@ -32,6 +32,14 @@ make plugin
 make user-install
 ```
 
+Or with Meson:
+
+```sh
+meson setup build
+meson compile -C build
+meson install -C build
+```
+
 Most users can install it through r2pm:
 
 ```sh
@@ -40,6 +48,9 @@ r2pm -ci r2unity
 
 `make` builds the CLI. `make plugin` builds `core_r2unity` and `bin_r2unity`.
 `make user-install` installs both the CLI and plugins for the current user.
+Meson builds the CLI by default, matching `make`. Use `-Dplugins=enabled` to
+build the radare2 plugins too, or `-Dr2_plugindir=/path/to/plugins` to override
+the plugin install directory.
 
 ## CLI
 
diff --git a/meson.build b/meson.build
new file mode 100644
index 0000000..1bc6950
--- /dev/null
+++ b/meson.build
@@ -0,0 +1,76 @@
+project(
+  'r2unity',
+  'c',
+  version: '0.0.0',
+  default_options: [
+    'c_std=c99',
+    'warning_level=2',
+    'buildtype=debugoptimized',
+  ],
+)
+
+r_util_dep = dependency('r_util')
+
+lib_inc = include_directories('src/lib')
+lib_sources = files(
+  'src/lib/elf.c',
+  'src/lib/lib.c',
+  'src/lib/macho.c',
+  'src/lib/paths.c',
+  'src/lib/pe.c',
+)
+
+r2unity = executable(
+  'r2unity',
+  files('src/main.c') + lib_sources,
+  include_directories: lib_inc,
+  dependencies: r_util_dep,
+  install: true,
+)
+
+test('r2unity-help', r2unity, args: ['-h'])
+
+plugins_opt = get_option('plugins')
+r_core_dep = dependency('r_core', required: plugins_opt)
+r_bin_dep = dependency('r_bin', required: plugins_opt)
+build_plugins = plugins_opt.enabled() or (
+  plugins_opt.auto() and r_core_dep.found() and r_bin_dep.found()
+)
+
+if build_plugins
+  r2_plugindir = get_option('r2_plugindir')
+  if r2_plugindir == ''
+    r2 = find_program('r2', required: false)
+    if r2.found()
+      r2_user_plugins = run_command(r2, '-H', 'R2_USER_PLUGINS', check: false)
+      if r2_user_plugins.returncode() == 0
+        r2_plugindir = r2_user_plugins.stdout().strip()
+      endif
+    endif
+  endif
+
+  if r2_plugindir == ''
+    r2_plugindir = join_paths(get_option('libdir'), 'radare2', 'plugins')
+    warning('r2 was not found; installing plugins under ' + r2_plugindir)
+  endif
+
+  shared_library(
+    'core_r2unity',
+    files('src/r2/core_r2unity.c') + lib_sources,
+    include_directories: lib_inc,
+    dependencies: r_core_dep,
+    name_prefix: '',
+    install: true,
+    install_dir: r2_plugindir,
+  )
+
+  shared_library(
+    'bin_r2unity',
+    files('src/r2/bin_r2unity.c') + lib_sources,
+    include_directories: lib_inc,
+    dependencies: r_bin_dep,
+    name_prefix: '',
+    install: true,
+    install_dir: r2_plugindir,
+  )
+endif
diff --git a/meson_options.txt b/meson_options.txt
new file mode 100644
index 0000000..f3b37d2
--- /dev/null
+++ b/meson_options.txt
@@ -0,0 +1,13 @@
+option(
+  'plugins',
+  type: 'feature',
+  value: 'disabled',
+  description: 'Build the radare2 core and bin plugins',
+)
+
+option(
+  'r2_plugindir',
+  type: 'string',
+  value: '',
+  description: 'Plugin install directory; when empty, Meson uses `r2 -H R2_USER_PLUGINS` if available',
+)