source: mainline/uspace/meson.build

#
# Copyright (c) 2005 Martin Decky
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# - Redistributions of source code must retain the above copyright
#   notice, this list of conditions and the following disclaimer.
# - Redistributions in binary form must reproduce the above copyright
#   notice, this list of conditions and the following disclaimer in the
#   documentation and/or other materials provided with the distribution.
# - The name of the author may not be used to endorse or promote products
#   derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

# 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

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

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

if CONFIG_BAREBONE
        drv_list = rd_essential_drv
else
        drv_list = rd_drv
endif

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 drv_list.contains('drv' / drv)
                _src = meson.current_source_dir() / 'drv' / drv / _basename + '.ma'
                _dstdir = 'drv' / _basename
                install_files += [[ _dstdir, _src, _basename + '.ma' ]]
                install_deps += files(_src)
        endif
endforeach

bin_targets = []

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

        subdir(appdirs.get('subdir'))

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

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

        if is_drv
                # Drivers are installed based on rd_[essential_]drv list
                install = drv_list.contains(dir)
        else
                #
                # Servers and applications are installed all (unless
                # platform-specific) or based on rd_essential in case
                # of barebone build or platform-specific
                #
                install = (not CONFIG_BAREBONE and not platform_specific) \
                    or rd_essential.contains(dir)
        endif

        if install
                # Install data files, if any.
                foreach _f : installed_data
                        _dstdir = _f.get('dir')
                        _src = meson.current_source_dir() / dir / _f.get('name')
                        install_files += [[ _dstdir, _src, _f.get('name') ]]
                        install_deps += files(_src)
                endforeach
        endif

        # 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: only strip after disassembly
        if CONFIG_STRIP_BINARIES
                link_args += [ '-s' ]
        endif

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


        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' ] : []),
                        'init': rd_init.contains(dir),
                }
        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,
                        'init': false,
                }
        endif
endforeach

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

        _install = tst.get('install')
        _install_dir = tst.get('install_dir')
        _basename = tst.get('basename')
        _full_install_path = _install_dir / _basename
        _build_name = _full_install_path.underscorify()
        _full_build_name = meson.current_build_dir() / _build_name
        _is_init = tst.get('init')

        if link_map
                # We want linker to generate link map for debugging.
                _ldargs += [ '-Wl,-Map,' + _full_build_name + '.map' ]
        endif

        _bin = executable(_build_name, _src,
                include_directories: tst.get('includes'),
                dependencies: tst.get('dependencies'),
                link_whole: libstartfiles,
                c_args: arch_uspace_c_args + tst.get('c_args'),
                cpp_args: arch_uspace_c_args + tst.get('c_args'),
                link_args: arch_uspace_c_args + arch_uspace_link_args + _ldargs,
                implicit_include_directories: true,
                build_by_default: true,
        )

        if _is_init
                rd_init_binaries += [[ _bin, _full_install_path ]]
        endif

        if disassemble
                _disasm = custom_target(_build_name + '.disasm',
                        command: [ objdump, '-S', '@INPUT@' ],
                        input: _bin,
                        output: _build_name + '.disasm',
                        capture: true,
                        build_by_default: true,
                )
        endif

        if _install
                # Due to certain quirks of our build, executables need to be built with a different name than what they are installed with.
                # Meson doesn't support renaming installed files (at least not as of mid-2019) so we do it manually.

                install_files += [[ _install_dir, _full_build_name, _basename ]]
                install_deps += [ _bin ]

                if install_debug_files
                        if disassemble
                                install_files += [[ 'debug' / _install_dir, _full_build_name + '.disasm', _basename + '.disasm' ]]
                                install_deps += [ _disasm ]
                        endif
                        if link_map
                                install_files += [[ 'debug' / _install_dir, _full_build_name + '.map', _basename + '.map' ]]
                        endif
                endif
        endif
endforeach