meson: Add support for building devkits

meson.build

@@ -412,6 +412,38 @@ else
   codesign = ''
 endif
 
+if get_option('devkits').length() != 0
+  if get_option('default_library') != 'static'
+    error('Devkits can only be generated from static libraries')
+  endif
+  mkdevkit = find_program('./releng/mkdevkit.py')
+  uninstalled_dir = meson.global_build_root() / 'meson-uninstalled'
+  devkit_options = [
+    '--cc=' + '!'.join(cc.cmd_array()),
+    '--c-args=' + '!'.join(get_option('c_args')),
+    '--pkg-config-path=' + '!'.join([uninstalled_dir] + get_option('pkg_config_path')),
+  ]
+  if host_toolchain == 'microsoft'
+    static_lib_prefix = ''
+    static_lib_suffix = '.lib'
+    devkit_options += ['--lib=' + lib.full_path()]
+  else
+    static_lib_prefix = 'lib'
+    static_lib_suffix = '.a'
+    devkit_options += [
+      '--ar=' + ar.full_path(),
+      '--nm=' + nm.full_path(),
+    ]
+    objcopy = find_program('objcopy', required: false)
+    if objcopy.found()
+      devkit_options += '--objcopy=' + objcopy.full_path()
+    endif
+  endif
+  if host_os_family == 'darwin'
+    devkit_options += ['--libtool=' + libtool.full_path()]
+  endif
+endif
+
 modulate = [
   python,
   files('tools/modulate.py'),

meson.options

@@ -98,6 +98,13 @@ option('compiler_snapshot',
   description: 'Speed up compiler startup by using a snapshot'
 )
 
+option('devkits',
+  type: 'array',
+  choices: ['core'],
+  value: [],
+  description: 'Devkits to build'
+)
+
 option('tests',
   type: 'feature',
   value: 'auto',

src/devkit/meson.build

@@ -0,0 +1,26 @@
+devkit_outputs = [
+  'frida-core.h',
+  static_lib_prefix + 'frida-core' + static_lib_suffix,
+  'frida-core-example.c',
+]
+
+if host_toolchain == 'microsoft'
+  devkit_outputs += [
+    'frida-core-example.sln',
+    'frida-core-example.vcxproj',
+    'frida-core-example.vcxproj.filters',
+  ]
+endif
+
+custom_target('core-devkit',
+  input: core_public,
+  output: devkit_outputs,
+  command: [
+    mkdevkit,
+    'frida-core',
+    f'@host_os@-@host_arch@',
+    meson.current_build_dir(),
+  ] + devkit_options,
+  install: true,
+  install_dir: get_option('libdir') / 'frida' / 'devkits' / 'core'
+)

src/meson.build

@@ -518,3 +518,6 @@ core_dep = declare_dependency(
 
 core_build_dir = meson.current_build_dir()
 subdir('api')
+if 'core' in get_option('devkits')
+  subdir('devkit')
+endif