source: mainline/uspace/meson.build@ 2fff3c4

# FIXME: somehow disabling link map makes tools/mkext4.py crash
link_map = true
disassemble = CONFIG_LINE_DEBUG
install_nonessential_data = not CONFIG_BAREBONE
# TODO: Allow installing debug files.
# This is currently disabled due to boot image size restrictions.
install_debug_files = false

rd_essential = []

subdir('lib')
subdir('app')
subdir('srv')
subdir('drv')

init = [
        'app/init',
        'srv/bd/rd',
        'srv/fs/' + RDFMT,
        'srv/loader',
        'srv/locsrv',
        'srv/logger',
        'srv/ns',
        'srv/vfs',
]

rd_essential += init

rd_essential += [
        'app/bdsh',
        'app/getterm',
        'app/kio',

        'srv/devman',
        'srv/fs/locfs',
        'srv/hid/input',
        'srv/hid/output',
        'srv/hid/compositor',
        'srv/hid/console',
        'srv/klog',

        'drv/root/root',
        'drv/root/virt',
        'drv/fb/kfb',
]

if CONFIG_FB
        rd_essential += [
                'app/vlaunch',
                'app/vterm',
        ]
endif

dirs = []

foreach app : apps
        dirs += {
                'subdir': join_paths('app', app),
                'installdir': 'app',
        }
endforeach

foreach srv : srvs
        _dirname = run_command(dirname, srv, check: true).stdout().strip()

        dirs += {
                'subdir': join_paths('srv', srv),
                'installdir': _dirname == '.' ? 'srv' : ('srv' / _dirname),
        }
endforeach

foreach drv : drvs
        _basename = run_command(basename, drv, check: true).stdout().strip()
        _dirname = run_command(dirname, drv, check: true).stdout().strip()

        dirs += {
                'subdir': 'drv' / drv,
                'installdir': 'drv' / _basename,
        }

        # Install driver metadata.
        if not CONFIG_BAREBONE or rd_essential.contains('drv' / drv)
                install_data('drv' / drv / _basename + '.ma', install_dir: 'drv' / _basename)
        endif
endforeach

bin_targets = []

foreach appdirs : dirs
        src = []
        test_src = []
        includes = []
        deps = []
        c_args = []
        link_args = []
        language = 'c'

        subdir(appdirs.get('subdir'))

        dir = appdirs.get('subdir')
        installdir = appdirs.get('installdir')

        install = not CONFIG_BAREBONE or rd_essential.contains(dir)

        # basename/dirname will be is useful later.
        _basename = run_command(basename, dir, check: true).stdout().strip()
        _dirname = run_command(dirname, dir, check: true).stdout().strip()

        # Extra linker flags

        # TODO: let meson do this on install instead, so that disassembly works
        if CONFIG_STRIP_BINARIES
                link_args += [ '-s' ]
        endif

        # Init binaries need to always be linked statically.
        static_build = (not CONFIG_USE_SHARED_LIBS) or init.contains(dir)

        # Add the corresponding standard libraries to dependencies.

        deps += [ 'c' ]

        if language == 'cpp'
                deps += 'cpp'
        endif

        # Binaries in the 'drv' subdirectory link libdrv by default.

        is_drv = (dir.split('/')[0] == 'drv')

        if is_drv
                deps += [ 'drv' ]
        endif

        # Convert strings to dependency objects

        _deps = []
        foreach s : deps
                _deps += get_variable('lib' + s).get(static_build ? 'static' : 'any')
        endforeach

        # Build executable

        if src.length() > 0
                bin_targets += {
                        'src': src,
                        'dirname': _dirname,
                        'basename': _basename,
                        'install': install,
                        'install_dir': installdir,
                        'includes': includes,
                        'dependencies': _deps,
                        'c_args': c_args,
                        'link_args': link_args + (static_build ? [ '-static' ] : []),
                }
        endif

        # Build test executable, if any

        if test_src.length() > 0
                bin_targets += {
                        'src': test_src,
                        'dirname': _dirname,
                        'basename': 'test-' + installdir.underscorify() + (is_drv ? '' : ('_' + _basename)),
                        'install': install and CONFIG_PCUT_TESTS,
                        'install_dir': 'test',
                        'includes': includes,
                        'dependencies': [ _deps, libpcut.get('any') ],
                        'c_args': c_args,
                        'link_args': link_args,
                }
        endif
endforeach

foreach tst : bin_targets
        _ldargs = tst.get('link_args')
        _src = tst.get('src')

        _install_dir = tst.get('install_dir').split('/')
        _install_dir += tst.get('basename')
        _install = tst.get('install')

        if _install
                _install_name = 'install@' + '$'.join(_install_dir)
        else
                _install_name = '_'.join(_install_dir)
        endif

        if _install and install_debug_files
                _debug_name = 'install@' + '$'.join([ 'debug' ] + _install_dir)
        else
                _debug_name = '_'.join(_install_dir)
        endif

        if link_map
                # We want linker to generate link map for debugging.
                _ldargs += [ '-Wl,-Map,' + meson.current_build_dir() / _debug_name + '.map' ]
        endif

        _bin = executable(_install_name, _src,
                include_directories: tst.get('includes'),
                dependencies: tst.get('dependencies'),
                objects: startfiles,
                c_args: tst.get('c_args'),
                link_args: _ldargs,
                implicit_include_directories: false,
                install: false,
                #install_dir: tst.get('install_dir'),
                build_by_default: true,
        )

        if disassemble
                custom_target(_debug_name + '.disasm',
                        command: [ objdump, '-S', '@INPUT@' ],
                        input: _bin,
                        output: _debug_name + '.disasm',
                        capture: true,
                        install: false,
                        #install_dir: 'debug' / tst.get('install_dir'),
                        build_by_default: true,
                )
        endif
endforeach