# Copyright 2012-2016 The Meson development team # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # http://www.apache.org/licenses/LICENSE-2.0 # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. import os, pickle, re from .. import build from .. import dependencies from .. import mesonlib import json import subprocess from ..coredata import MesonException class InstallData(): def __init__(self, source_dir, build_dir, prefix, depfixer): self.source_dir = source_dir self.build_dir= build_dir self.prefix = prefix self.targets = [] self.depfixer = depfixer self.headers = [] self.man = [] self.data = [] self.po_package_name = '' self.po = [] self.install_scripts = [] self.install_subdirs = [] class TestSerialisation: def __init__(self, name, suite, fname, is_cross, exe_wrapper, is_parallel, cmd_args, env, should_fail, valgrind_args, timeout, workdir, extra_paths): self.name = name self.suite = suite self.fname = fname self.is_cross = is_cross self.exe_runner = exe_wrapper self.is_parallel = is_parallel self.cmd_args = cmd_args self.env = env self.should_fail = should_fail self.valgrind_args = valgrind_args self.timeout = timeout self.workdir = workdir self.extra_paths = extra_paths # This class contains the basic functionality that is needed by all backends. # Feel free to move stuff in and out of it as you see fit. class Backend(): def __init__(self, build): self.build = build self.environment = build.environment self.processed_targets = {} self.dep_rules = {} self.build_to_src = os.path.relpath(self.environment.get_source_dir(), self.environment.get_build_dir()) for t in self.build.targets: priv_dirname = self.get_target_private_dir_abs(t) os.makedirs(priv_dirname, exist_ok=True) def get_compiler_for_lang(self, lang): for i in self.build.compilers: if i.language == lang: return i raise RuntimeError('No compiler for language ' + lang) def get_compiler_for_source(self, src): for i in self.build.compilers: if i.can_compile(src): return i if isinstance(src, mesonlib.File): src = src.fname raise RuntimeError('No specified compiler can handle file ' + src) def get_target_filename(self, target): targetdir = self.get_target_dir(target) fname = target.get_filename() if isinstance(fname, list): # FIXME FIXME FIXME: build.CustomTarget has multiple output files # and get_filename() returns them all fname = fname[0] filename = os.path.join(targetdir, fname) return filename def get_target_filename_for_linking(self, target): # On some platforms (msvc for instance), the file that is used for # dynamic linking is not the same as the dynamic library itself. This # file is called an import library, and we want to link against that. # On platforms where this distinction is not important, the import # library is the same as the dynamic library itself. return os.path.join(self.get_target_dir(target), target.get_import_filename()) def get_target_dir(self, target): if self.environment.coredata.get_builtin_option('layout') == 'mirror': dirname = target.get_subdir() else: dirname = 'meson-out' return dirname def get_target_private_dir(self, target): dirname = os.path.join(self.get_target_dir(target), target.get_basename() + target.type_suffix()) return dirname def get_target_private_dir_abs(self, target): dirname = os.path.join(self.environment.get_build_dir(), self.get_target_private_dir(target)) return dirname def generate_unity_files(self, target, unity_src): langlist = {} abs_files = [] result = [] for src in unity_src: comp = self.get_compiler_for_source(src) language = comp.get_language() suffix = '.' + comp.get_default_suffix() if language not in langlist: outfilename = os.path.join(self.get_target_private_dir_abs(target), target.name + '-unity' + suffix) outfileabs = os.path.join(self.environment.get_build_dir(), outfilename) outfileabs_tmp = outfileabs + '.tmp' abs_files.append(outfileabs) outfileabs_tmp_dir = os.path.dirname(outfileabs_tmp) if not os.path.exists(outfileabs_tmp_dir): os.makedirs(outfileabs_tmp_dir) outfile = open(outfileabs_tmp, 'w') langlist[language] = outfile result.append(outfilename) ofile = langlist[language] ofile.write('#include<%s>\n' % src) [x.close() for x in langlist.values()] [mesonlib.replace_if_different(x, x + '.tmp') for x in abs_files] return result def relpath(self, todir, fromdir): return os.path.relpath(os.path.join('dummyprefixdir', todir),\ os.path.join('dummyprefixdir', fromdir)) def flatten_object_list(self, target, proj_dir_to_build_root='', include_dir_names=True): obj_list = [] for obj in target.get_objects(): if isinstance(obj, str): o = os.path.join(proj_dir_to_build_root, self.build_to_src, target.get_subdir(), obj) obj_list.append(o) elif isinstance(obj, build.ExtractedObjects): obj_list += self.determine_ext_objs(obj, proj_dir_to_build_root, include_dir_names) else: raise MesonException('Unknown data type in object list.') return obj_list def serialise_tests(self): test_data = os.path.join(self.environment.get_scratch_dir(), 'meson_test_setup.dat') datafile = open(test_data, 'wb') self.write_test_file(datafile) datafile.close() benchmark_data = os.path.join(self.environment.get_scratch_dir(), 'meson_benchmark_setup.dat') datafile = open(benchmark_data, 'wb') self.write_benchmark_file(datafile) datafile.close() def has_source_suffix(self, target, suffix): for s in target.get_sources(): if s.endswith(suffix): return True return False def has_vala(self, target): return self.has_source_suffix(target, '.vala') def has_rust(self, target): return self.has_source_suffix(target, '.rs') def has_cs(self, target): return self.has_source_suffix(target, '.cs') def has_swift(self, target): return self.has_source_suffix(target, '.swift') def determine_linker(self, target, src): if isinstance(target, build.StaticLibrary): return self.build.static_linker if len(self.build.compilers) == 1: return self.build.compilers[0] # Currently a bit naive. C++ must # be linked with a C++ compiler, but # otherwise we don't care. This will # become trickier if and when Fortran # and the like become supported. cpp = None for c in self.build.compilers: if c.get_language() == 'cpp': cpp = c break if cpp is not None: for s in src: if c.can_compile(s): return cpp for c in self.build.compilers: if c.get_language() != 'vala': return c raise RuntimeError('Unreachable code') def determine_ext_objs(self, extobj, proj_dir_to_build_root='', include_dir_names=True): result = [] targetdir = self.get_target_private_dir(extobj.target) suffix = '.' + self.environment.get_object_suffix() for osrc in extobj.srclist: osrc_base = osrc.fname if not self.source_suffix_in_objs: osrc_base = '.'.join(osrc.split('.')[:-1]) # If extracting in a subproject, the subproject # name gets duplicated in the file name. pathsegs = osrc.subdir.split(os.sep) if pathsegs[0] == 'subprojects': pathsegs = pathsegs[2:] fixedpath = os.sep.join(pathsegs) if include_dir_names: objbase = osrc_base.replace('/', '_').replace('\\', '_') else: # vs2010 backend puts all obj files without directory prefixes into build dir, so just # use the file name without a directory (will be stripped by os.path.basename() below). objbase = osrc_base objname = os.path.join(proj_dir_to_build_root, targetdir, os.path.basename(objbase) + suffix) result.append(objname) return result def get_pch_include_args(self, compiler, target): args = [] pchpath = self.get_target_private_dir(target) includeargs = compiler.get_include_args(pchpath, False) for lang in ['c', 'cpp']: p = target.get_pch(lang) if len(p) == 0: continue if compiler.can_compile(p[-1]): header = p[0] args += compiler.get_pch_use_args(pchpath, header) if len(args) > 0: args = includeargs + args return args def generate_basic_compiler_args(self, target, compiler): commands = [] commands += compiler.get_always_args() commands += compiler.get_warn_args(self.environment.coredata.get_builtin_option('warning_level')) commands += compiler.get_option_compile_args(self.environment.coredata.compiler_options) commands += self.build.get_global_args(compiler) commands += self.environment.coredata.external_args[compiler.get_language()] commands += target.get_extra_args(compiler.get_language()) commands += compiler.get_buildtype_args(self.environment.coredata.get_builtin_option('buildtype')) if self.environment.coredata.get_builtin_option('coverage'): commands += compiler.get_coverage_args() if self.environment.coredata.get_builtin_option('werror'): commands += compiler.get_werror_args() if isinstance(target, build.SharedLibrary): commands += compiler.get_pic_args() for dep in target.get_external_deps(): # Cflags required by external deps might have UNIX-specific flags, # so filter them out if needed commands += compiler.unix_compile_flags_to_native(dep.get_compile_args()) if isinstance(target, build.Executable): commands += dep.get_exe_args() # Fortran requires extra include directives. if compiler.language == 'fortran': for lt in target.link_targets: priv_dir = os.path.join(self.get_target_dir(lt), lt.get_basename() + lt.type_suffix()) incflag = compiler.get_include_args(priv_dir, False) commands += incflag return commands def build_target_link_arguments(self, compiler, deps): args = [] for d in deps: if not isinstance(d, build.StaticLibrary) and\ not isinstance(d, build.SharedLibrary): raise RuntimeError('Tried to link with a non-library target "%s".' % d.get_basename()) args.append(self.get_target_filename_for_linking(d)) # If you have executable e that links to shared lib s1 that links to shared library s2 # you have to specify s2 as well as s1 when linking e even if e does not directly use # s2. Gcc handles this case fine but Clang does not for some reason. Thus we need to # explictly specify all libraries every time. args += self.build_target_link_arguments(compiler, d.get_dependencies()) return args def determine_windows_extra_paths(self, target): '''On Windows there is no such thing as an rpath. We must determine all locations of DLLs that this exe links to and return them so they can be used in unit tests.''' if not isinstance(target, build.Executable): return [] prospectives = target.get_transitive_link_deps() result = [] for ld in prospectives: if ld == '' or ld == '.': continue dirseg = os.path.join(self.environment.get_build_dir(), self.get_target_dir(ld)) if dirseg not in result: result.append(dirseg) return result def write_benchmark_file(self, datafile): self.write_test_serialisation(self.build.get_benchmarks(), datafile) def write_test_file(self, datafile): self.write_test_serialisation(self.build.get_tests(), datafile) def write_test_serialisation(self, tests, datafile): arr = [] for t in tests: exe = t.get_exe() if isinstance(exe, dependencies.ExternalProgram): fname = exe.fullpath else: fname = [os.path.join(self.environment.get_build_dir(), self.get_target_filename(t.get_exe()))] is_cross = self.environment.is_cross_build() and self.environment.cross_info.need_cross_compiler() if is_cross: exe_wrapper = self.environment.cross_info.config['binaries'].get('exe_wrapper', None) else: exe_wrapper = None if mesonlib.is_windows(): extra_paths = self.determine_windows_extra_paths(exe) else: extra_paths = [] cmd_args = [] for a in t.cmd_args: if isinstance(a, mesonlib.File): a = os.path.join(self.environment.get_build_dir(), a.rel_to_builddir(self.build_to_src)) cmd_args.append(a) ts = TestSerialisation(t.get_name(), t.suite, fname, is_cross, exe_wrapper, t.is_parallel, cmd_args, t.env, t.should_fail, t.valgrind_args, t.timeout, t.workdir, extra_paths) arr.append(ts) pickle.dump(arr, datafile) def generate_depmf_install(self, d): if self.build.dep_manifest_name is None: return ifilename = os.path.join(self.environment.get_build_dir(), 'depmf.json') ofilename = os.path.join(self.environment.get_prefix(), self.build.dep_manifest_name) mfobj = {'type': 'dependency manifest', 'version': '1.0'} mfobj['projects'] = self.build.dep_manifest open(ifilename, 'w').write(json.dumps(mfobj)) d.data.append([ifilename, ofilename]) def get_regen_filelist(self): '''List of all files whose alteration means that the build definition needs to be regenerated.''' deps = [os.path.join(self.build_to_src, df) \ for df in self.interpreter.get_build_def_files()] if self.environment.is_cross_build(): deps.append(os.path.join(self.build_to_src, self.environment.coredata.cross_file)) deps.append('meson-private/coredata.dat') if os.path.exists(os.path.join(self.environment.get_source_dir(), 'meson_options.txt')): deps.append(os.path.join(self.build_to_src, 'meson_options.txt')) for sp in self.build.subprojects.keys(): fname = os.path.join(self.environment.get_source_dir(), sp, 'meson_options.txt') if os.path.isfile(fname): deps.append(os.path.join(self.build_to_src, sp, 'meson_options.txt')) return deps def exe_object_to_cmd_array(self, exe): if self.environment.is_cross_build() and \ isinstance(exe, build.BuildTarget) and exe.is_cross: if 'exe_wrapper' not in self.environment.cross_info: s = 'Can not use target %s as a generator because it is cross-built\n' s += 'and no exe wrapper is defined. You might want to set it to native instead.' s = s % exe.name raise MesonException(s) if isinstance(exe, build.BuildTarget): exe_arr = [os.path.join(self.environment.get_build_dir(), self.get_target_filename(exe))] else: exe_arr = exe.get_command() return exe_arr def eval_custom_target_command(self, target, absolute_paths=False): ofilenames = [os.path.join(self.get_target_dir(target), i) for i in target.output] srcs = [] outdir = self.get_target_dir(target) # Many external programs fail on empty arguments. if outdir == '': outdir = '.' if absolute_paths: outdir = os.path.join(self.environment.get_build_dir(), outdir) for i in target.sources: if hasattr(i, 'held_object'): i = i.held_object if isinstance(i, str): fname = os.path.join(self.build_to_src, target.subdir, i) elif isinstance(i, build.BuildTarget): fname = self.get_target_filename(i) else: fname = i.rel_to_builddir(self.build_to_src) if absolute_paths: fname = os.path.join(self.environment.get_build_dir(), fname) srcs.append(fname) cmd = [] for i in target.command: if isinstance(i, build.Executable): cmd += self.exe_object_to_cmd_array(i) continue if isinstance(i, build.CustomTarget): # GIR scanner will attempt to execute this binary but # it assumes that it is in path, so always give it a full path. tmp = i.get_filename()[0] i = os.path.join(self.get_target_dir(i), tmp) for (j, src) in enumerate(srcs): i = i.replace('@INPUT%d@' % j, src) for (j, res) in enumerate(ofilenames): i = i.replace('@OUTPUT%d@' % j, res) if i == '@INPUT@': cmd += srcs elif i == '@OUTPUT@': cmd += ofilenames else: if '@OUTDIR@' in i: i = i.replace('@OUTDIR@', outdir) elif '@PRIVATE_OUTDIR_' in i: match = re.search('@PRIVATE_OUTDIR_(ABS_)?([-a-zA-Z0-9.@:]*)@', i) source = match.group(0) if match.group(1) is None and not absolute_paths: lead_dir = '' else: lead_dir = self.environment.get_build_dir() target_id = match.group(2) i = i.replace(source, os.path.join(lead_dir, outdir)) cmd.append(i) cmd = [i.replace('\\', '/') for i in cmd] return (srcs, ofilenames, cmd) def run_postconf_scripts(self): env = {'MESON_SOURCE_ROOT' : self.environment.get_source_dir(), 'MESON_BUILD_ROOT' : self.environment.get_build_dir() } child_env = os.environ.copy() child_env.update(env) for s in self.build.postconf_scripts: cmd = s['exe'].get_command() + s['args'] subprocess.check_call(cmd, env=child_env)