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meson/mesonbuild/backend/ninjabackend.py

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# Copyright 2012-2017 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.
from __future__ import annotations
from collections import OrderedDict
from dataclasses import dataclass
from enum import Enum, unique
from functools import lru_cache
from pathlib import PurePath, Path
from textwrap import dedent
import itertools
import json
import os
import pickle
import re
import shlex
import subprocess
import typing as T
from . import backends
from .. import modules
from .. import environment, mesonlib
from .. import build
from .. import mlog
from .. import compilers
from ..arglist import CompilerArgs
from ..compilers import Compiler
from ..linkers import ArLikeLinker, RSPFileSyntax
from ..mesonlib import (
File, LibType, MachineChoice, MesonBugException, MesonException, OrderedSet, PerMachine,
ProgressBar, quote_arg
)
from ..mesonlib import get_compiler_for_source, has_path_sep, OptionKey
from .backends import CleanTrees
from ..build import GeneratedList, InvalidArguments
if T.TYPE_CHECKING:
from typing_extensions import Literal
from .._typing import ImmutableListProtocol
from ..build import ExtractedObjects, LibTypes
from ..interpreter import Interpreter
from ..linkers.linkers import DynamicLinker, StaticLinker
from ..compilers.cs import CsCompiler
from ..compilers.fortran import FortranCompiler
CommandArgOrStr = T.List[T.Union['NinjaCommandArg', str]]
RUST_EDITIONS = Literal['2015', '2018', '2021']
FORTRAN_INCLUDE_PAT = r"^\s*#?include\s*['\"](\w+\.\w+)['\"]"
FORTRAN_MODULE_PAT = r"^\s*\bmodule\b\s+(\w+)\s*(?:!+.*)*$"
FORTRAN_SUBMOD_PAT = r"^\s*\bsubmodule\b\s*\((\w+:?\w+)\)\s*(\w+)"
FORTRAN_USE_PAT = r"^\s*use,?\s*(?:non_intrinsic)?\s*(?:::)?\s*(\w+)"
def cmd_quote(arg: str) -> str:
# see: https://docs.microsoft.com/en-us/windows/desktop/api/shellapi/nf-shellapi-commandlinetoargvw#remarks
# backslash escape any existing double quotes
# any existing backslashes preceding a quote are doubled
arg = re.sub(r'(\\*)"', lambda m: '\\' * (len(m.group(1)) * 2 + 1) + '"', arg)
# any terminal backslashes likewise need doubling
arg = re.sub(r'(\\*)$', lambda m: '\\' * (len(m.group(1)) * 2), arg)
# and double quote
arg = f'"{arg}"'
return arg
def gcc_rsp_quote(s: str) -> str:
# see: the function buildargv() in libiberty
#
# this differs from sh-quoting in that a backslash *always* escapes the
# following character, even inside single quotes.
s = s.replace('\\', '\\\\')
return shlex.quote(s)
# How ninja executes command lines differs between Unix and Windows
# (see https://ninja-build.org/manual.html#ref_rule_command)
if mesonlib.is_windows():
quote_func = cmd_quote
execute_wrapper = ['cmd', '/c'] # unused
rmfile_prefix = ['del', '/f', '/s', '/q', '{}', '&&']
else:
quote_func = quote_arg
execute_wrapper = []
rmfile_prefix = ['rm', '-f', '{}', '&&']
def get_rsp_threshold() -> int:
'''Return a conservative estimate of the commandline size in bytes
above which a response file should be used. May be overridden for
debugging by setting environment variable MESON_RSP_THRESHOLD.'''
if mesonlib.is_windows():
# Usually 32k, but some projects might use cmd.exe,
# and that has a limit of 8k.
limit = 8192
else:
# On Linux, ninja always passes the commandline as a single
# big string to /bin/sh, and the kernel limits the size of a
# single argument; see MAX_ARG_STRLEN
limit = 131072
# Be conservative
limit = limit // 2
return int(os.environ.get('MESON_RSP_THRESHOLD', limit))
# a conservative estimate of the command-line length limit
rsp_threshold = get_rsp_threshold()
# ninja variables whose value should remain unquoted. The value of these ninja
# variables (or variables we use them in) is interpreted directly by ninja
# (e.g. the value of the depfile variable is a pathname that ninja will read
# from, etc.), so it must not be shell quoted.
raw_names = {'DEPFILE_UNQUOTED', 'DESC', 'pool', 'description', 'targetdep', 'dyndep'}
NINJA_QUOTE_BUILD_PAT = re.compile(r"[$ :\n]")
NINJA_QUOTE_VAR_PAT = re.compile(r"[$ \n]")
def ninja_quote(text: str, is_build_line: bool = False) -> str:
if is_build_line:
quote_re = NINJA_QUOTE_BUILD_PAT
else:
quote_re = NINJA_QUOTE_VAR_PAT
# Fast path for when no quoting is necessary
if not quote_re.search(text):
return text
if '\n' in text:
errmsg = f'''Ninja does not support newlines in rules. The content was:
{text}
Please report this error with a test case to the Meson bug tracker.'''
raise MesonException(errmsg)
return quote_re.sub(r'$\g<0>', text)
class TargetDependencyScannerInfo:
def __init__(self, private_dir: str, source2object: T.Dict[str, str]):
self.private_dir = private_dir
self.source2object = source2object
@unique
class Quoting(Enum):
both = 0
notShell = 1
notNinja = 2
none = 3
class NinjaCommandArg:
def __init__(self, s: str, quoting: Quoting = Quoting.both) -> None:
self.s = s
self.quoting = quoting
def __str__(self) -> str:
return self.s
@staticmethod
def list(l: T.List[str], q: Quoting) -> T.List[NinjaCommandArg]:
return [NinjaCommandArg(i, q) for i in l]
@dataclass
class NinjaComment:
comment: str
def write(self, outfile: T.TextIO) -> None:
for l in self.comment.split('\n'):
outfile.write('# ')
outfile.write(l)
outfile.write('\n')
outfile.write('\n')
class NinjaRule:
def __init__(self, rule: str, command: CommandArgOrStr, args: CommandArgOrStr,
description: str, rspable: bool = False, deps: T.Optional[str] = None,
depfile: T.Optional[str] = None, extra: T.Optional[str] = None,
rspfile_quote_style: RSPFileSyntax = RSPFileSyntax.GCC):
def strToCommandArg(c: T.Union[NinjaCommandArg, str]) -> NinjaCommandArg:
if isinstance(c, NinjaCommandArg):
return c
# deal with common cases here, so we don't have to explicitly
# annotate the required quoting everywhere
if c == '&&':
# shell constructs shouldn't be shell quoted
return NinjaCommandArg(c, Quoting.notShell)
if c.startswith('$'):
var = re.search(r'\$\{?(\w*)\}?', c).group(1)
if var not in raw_names:
# ninja variables shouldn't be ninja quoted, and their value
# is already shell quoted
return NinjaCommandArg(c, Quoting.none)
else:
# shell quote the use of ninja variables whose value must
# not be shell quoted (as it also used by ninja)
return NinjaCommandArg(c, Quoting.notNinja)
return NinjaCommandArg(c)
self.name = rule
self.command: T.List[NinjaCommandArg] = [strToCommandArg(c) for c in command] # includes args which never go into a rspfile
self.args: T.List[NinjaCommandArg] = [strToCommandArg(a) for a in args] # args which will go into a rspfile, if used
self.description = description
self.deps = deps # depstyle 'gcc' or 'msvc'
self.depfile = depfile
self.extra = extra
self.rspable = rspable # if a rspfile can be used
self.refcount = 0
self.rsprefcount = 0
self.rspfile_quote_style = rspfile_quote_style
if self.depfile == '$DEPFILE':
self.depfile += '_UNQUOTED'
@staticmethod
def _quoter(x, qf = quote_func):
if isinstance(x, NinjaCommandArg):
if x.quoting == Quoting.none:
return x.s
elif x.quoting == Quoting.notNinja:
return qf(x.s)
elif x.quoting == Quoting.notShell:
return ninja_quote(x.s)
# fallthrough
return ninja_quote(qf(str(x)))
def write(self, outfile: T.TextIO) -> None:
if self.rspfile_quote_style is RSPFileSyntax.MSVC:
rspfile_quote_func = cmd_quote
else:
rspfile_quote_func = gcc_rsp_quote
def rule_iter():
if self.refcount:
yield ''
if self.rsprefcount:
yield '_RSP'
for rsp in rule_iter():
outfile.write(f'rule {self.name}{rsp}\n')
if rsp == '_RSP':
outfile.write(' command = {} @$out.rsp\n'.format(' '.join([self._quoter(x) for x in self.command])))
outfile.write(' rspfile = $out.rsp\n')
outfile.write(' rspfile_content = {}\n'.format(' '.join([self._quoter(x, rspfile_quote_func) for x in self.args])))
else:
outfile.write(' command = {}\n'.format(' '.join([self._quoter(x) for x in self.command + self.args])))
if self.deps:
outfile.write(f' deps = {self.deps}\n')
if self.depfile:
outfile.write(f' depfile = {self.depfile}\n')
outfile.write(f' description = {self.description}\n')
if self.extra:
for l in self.extra.split('\n'):
outfile.write(' ')
outfile.write(l)
outfile.write('\n')
outfile.write('\n')
def length_estimate(self, infiles, outfiles, elems):
# determine variables
# this order of actions only approximates ninja's scoping rules, as
# documented at: https://ninja-build.org/manual.html#ref_scope
ninja_vars = {}
for e in elems:
(name, value) = e
ninja_vars[name] = value
ninja_vars['deps'] = self.deps
ninja_vars['depfile'] = self.depfile
ninja_vars['in'] = infiles
ninja_vars['out'] = outfiles
# expand variables in command
command = ' '.join([self._quoter(x) for x in self.command + self.args])
estimate = len(command)
for m in re.finditer(r'(\${\w+}|\$\w+)?[^$]*', command):
if m.start(1) != -1:
estimate -= m.end(1) - m.start(1) + 1
chunk = m.group(1)
if chunk[1] == '{':
chunk = chunk[2:-1]
else:
chunk = chunk[1:]
chunk = ninja_vars.get(chunk, []) # undefined ninja variables are empty
estimate += len(' '.join(chunk))
# determine command length
return estimate
class NinjaBuildElement:
def __init__(self, all_outputs: T.Set[str], outfilenames, rulename, infilenames, implicit_outs=None):
self.implicit_outfilenames = implicit_outs or []
if isinstance(outfilenames, str):
self.outfilenames = [outfilenames]
else:
self.outfilenames = outfilenames
assert isinstance(rulename, str)
self.rulename = rulename
if isinstance(infilenames, str):
self.infilenames = [infilenames]
else:
self.infilenames = infilenames
self.deps = OrderedSet()
self.orderdeps = OrderedSet()
self.elems = []
self.all_outputs = all_outputs
self.output_errors = ''
def add_dep(self, dep: T.Union[str, T.List[str]]) -> None:
if isinstance(dep, list):
self.deps.update(dep)
else:
self.deps.add(dep)
def add_orderdep(self, dep):
if isinstance(dep, list):
self.orderdeps.update(dep)
else:
self.orderdeps.add(dep)
def add_item(self, name: str, elems: T.Union[str, T.List[str, CompilerArgs]]) -> None:
# Always convert from GCC-style argument naming to the naming used by the
# current compiler. Also filter system include paths, deduplicate, etc.
if isinstance(elems, CompilerArgs):
elems = elems.to_native()
if isinstance(elems, str):
elems = [elems]
self.elems.append((name, elems))
if name == 'DEPFILE':
self.elems.append((name + '_UNQUOTED', elems))
def _should_use_rspfile(self):
# 'phony' is a rule built-in to ninja
if self.rulename == 'phony':
return False
if not self.rule.rspable:
return False
infilenames = ' '.join([ninja_quote(i, True) for i in self.infilenames])
outfilenames = ' '.join([ninja_quote(i, True) for i in self.outfilenames])
return self.rule.length_estimate(infilenames,
outfilenames,
self.elems) >= rsp_threshold
def count_rule_references(self):
if self.rulename != 'phony':
if self._should_use_rspfile():
self.rule.rsprefcount += 1
else:
self.rule.refcount += 1
def write(self, outfile):
if self.output_errors:
raise MesonException(self.output_errors)
ins = ' '.join([ninja_quote(i, True) for i in self.infilenames])
outs = ' '.join([ninja_quote(i, True) for i in self.outfilenames])
implicit_outs = ' '.join([ninja_quote(i, True) for i in self.implicit_outfilenames])
if implicit_outs:
implicit_outs = ' | ' + implicit_outs
use_rspfile = self._should_use_rspfile()
if use_rspfile:
rulename = self.rulename + '_RSP'
mlog.debug(f'Command line for building {self.outfilenames} is long, using a response file')
else:
rulename = self.rulename
line = f'build {outs}{implicit_outs}: {rulename} {ins}'
if len(self.deps) > 0:
line += ' | ' + ' '.join([ninja_quote(x, True) for x in sorted(self.deps)])
if len(self.orderdeps) > 0:
orderdeps = [str(x) for x in self.orderdeps]
line += ' || ' + ' '.join([ninja_quote(x, True) for x in sorted(orderdeps)])
line += '\n'
# This is the only way I could find to make this work on all
# platforms including Windows command shell. Slash is a dir separator
# on Windows, too, so all characters are unambiguous and, more importantly,
# do not require quoting, unless explicitly specified, which is necessary for
# the csc compiler.
line = line.replace('\\', '/')
if mesonlib.is_windows():
# Support network paths as backslash, otherwise they are interpreted as
# arguments for compile/link commands when using MSVC
line = ' '.join(
(l.replace('//', '\\\\', 1) if l.startswith('//') else l)
for l in line.split(' ')
)
outfile.write(line)
if use_rspfile:
if self.rule.rspfile_quote_style is RSPFileSyntax.MSVC:
qf = cmd_quote
else:
qf = gcc_rsp_quote
else:
qf = quote_func
for e in self.elems:
(name, elems) = e
should_quote = name not in raw_names
line = f' {name} = '
newelems = []
for i in elems:
if not should_quote or i == '&&': # Hackety hack hack
newelems.append(ninja_quote(i))
else:
newelems.append(ninja_quote(qf(i)))
line += ' '.join(newelems)
line += '\n'
outfile.write(line)
outfile.write('\n')
def check_outputs(self):
for n in self.outfilenames:
if n in self.all_outputs:
self.output_errors = f'Multiple producers for Ninja target "{n}". Please rename your targets.'
self.all_outputs.add(n)
@dataclass
class RustDep:
name: str
# equal to the order value of the `RustCrate`
crate: int
def to_json(self) -> T.Dict[str, object]:
return {
"crate": self.crate,
"name": self.name,
}
@dataclass
class RustCrate:
# When the json file is written, the list of Crates will be sorted by this
# value
order: int
display_name: str
root_module: str
edition: RUST_EDITIONS
deps: T.List[RustDep]
cfg: T.List[str]
is_proc_macro: bool
# This is set to True for members of this project, and False for all
# subprojects
is_workspace_member: bool
proc_macro_dylib_path: T.Optional[str] = None
def to_json(self) -> T.Dict[str, object]:
ret: T.Dict[str, object] = {
"display_name": self.display_name,
"root_module": self.root_module,
"edition": self.edition,
"cfg": self.cfg,
"is_proc_macro": self.is_proc_macro,
"deps": [d.to_json() for d in self.deps],
}
if self.is_proc_macro:
assert self.proc_macro_dylib_path is not None, "This shouldn't happen"
ret["proc_macro_dylib_path"] = self.proc_macro_dylib_path
return ret
class NinjaBackend(backends.Backend):
def __init__(self, build: T.Optional[build.Build], interpreter: T.Optional[Interpreter]):
super().__init__(build, interpreter)
self.name = 'ninja'
self.ninja_filename = 'build.ninja'
self.fortran_deps = {}
self.all_outputs: T.Set[str] = set()
self.introspection_data = {}
self.created_llvm_ir_rule = PerMachine(False, False)
self.rust_crates: T.Dict[str, RustCrate] = {}
self.implicit_meson_outs = []
def create_phony_target(self, dummy_outfile: str, rulename: str, phony_infilename: str) -> NinjaBuildElement:
'''
We need to use aliases for targets that might be used as directory
names to workaround a Ninja bug that breaks `ninja -t clean`.
This is used for 'reserved' targets such as 'test', 'install',
'benchmark', etc, and also for RunTargets.
https://github.com/mesonbuild/meson/issues/1644
'''
if dummy_outfile.startswith('meson-internal__'):
raise AssertionError(f'Invalid usage of create_phony_target with {dummy_outfile!r}')
to_name = f'meson-internal__{dummy_outfile}'
elem = NinjaBuildElement(self.all_outputs, dummy_outfile, 'phony', to_name)
self.add_build(elem)
return NinjaBuildElement(self.all_outputs, to_name, rulename, phony_infilename)
def detect_vs_dep_prefix(self, tempfilename):
'''VS writes its dependency in a locale dependent format.
Detect the search prefix to use.'''
# TODO don't hard-code host
for compiler in self.environment.coredata.compilers.host.values():
# Have to detect the dependency format
# IFort / masm on windows is MSVC like, but doesn't have /showincludes
if compiler.language in {'fortran', 'masm'}:
continue
if compiler.id == 'pgi' and mesonlib.is_windows():
# for the purpose of this function, PGI doesn't act enough like MSVC
return open(tempfilename, 'a', encoding='utf-8')
if compiler.get_argument_syntax() == 'msvc':
break
else:
# None of our compilers are MSVC, we're done.
return open(tempfilename, 'a', encoding='utf-8')
filebase = 'incdetect.' + compilers.lang_suffixes[compiler.language][0]
filename = os.path.join(self.environment.get_scratch_dir(),
filebase)
with open(filename, 'w', encoding='utf-8') as f:
f.write(dedent('''\
#include<stdio.h>
int dummy;
'''))
# The output of cl dependency information is language
# and locale dependent. Any attempt at converting it to
# Python strings leads to failure. We _must_ do this detection
# in raw byte mode and write the result in raw bytes.
pc = subprocess.Popen(compiler.get_exelist() +
['/showIncludes', '/c', filebase],
cwd=self.environment.get_scratch_dir(),
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
(stdout, stderr) = pc.communicate()
# We want to match 'Note: including file: ' in the line
# 'Note: including file: d:\MyDir\include\stdio.h', however
# different locales have different messages with a different
# number of colons. Match up to the drive name 'd:\'.
# When used in cross compilation, the path separator is a
# forward slash rather than a backslash so handle both; i.e.
# the path is /MyDir/include/stdio.h.
# With certain cross compilation wrappings of MSVC, the paths
# use backslashes, but without the leading drive name, so
# allow the path to start with any path separator, i.e.
# \MyDir\include\stdio.h.
matchre = re.compile(rb"^(.*\s)([a-zA-Z]:[\\/]|[\\\/]).*stdio.h$")
def detect_prefix(out):
for line in re.split(rb'\r?\n', out):
match = matchre.match(line)
if match:
with open(tempfilename, 'ab') as binfile:
binfile.write(b'msvc_deps_prefix = ' + match.group(1) + b'\n')
return open(tempfilename, 'a', encoding='utf-8')
return None
# Some cl wrappers (e.g. Squish Coco) output dependency info
# to stderr rather than stdout
result = detect_prefix(stdout) or detect_prefix(stderr)
if result:
return result
raise MesonException(f'Could not determine vs dep dependency prefix string. output: {stderr} {stdout}')
def generate(self, capture: bool = False, vslite_ctx: dict = None) -> T.Optional[dict]:
if vslite_ctx:
# We don't yet have a use case where we'd expect to make use of this,
# so no harm in catching and reporting something unexpected.
raise MesonBugException('We do not expect the ninja backend to be given a valid \'vslite_ctx\'')
ninja = environment.detect_ninja_command_and_version(log=True)
if self.environment.coredata.get_option(OptionKey('vsenv')):
builddir = Path(self.environment.get_build_dir())
try:
# For prettier printing, reduce to a relative path. If
# impossible (e.g., because builddir and cwd are on
# different Windows drives), skip and use the full path.
builddir = builddir.relative_to(Path.cwd())
except ValueError:
pass
meson_command = mesonlib.join_args(mesonlib.get_meson_command())
mlog.log()
mlog.log('Visual Studio environment is needed to run Ninja. It is recommended to use Meson wrapper:')
mlog.log(f'{meson_command} compile -C {builddir}')
if ninja is None:
raise MesonException('Could not detect Ninja v1.8.2 or newer')
(self.ninja_command, self.ninja_version) = ninja
outfilename = os.path.join(self.environment.get_build_dir(), self.ninja_filename)
tempfilename = outfilename + '~'
with open(tempfilename, 'w', encoding='utf-8') as outfile:
outfile.write(f'# This is the build file for project "{self.build.get_project()}"\n')
outfile.write('# It is autogenerated by the Meson build system.\n')
outfile.write('# Do not edit by hand.\n\n')
outfile.write('ninja_required_version = 1.8.2\n\n')
num_pools = self.environment.coredata.options[OptionKey('backend_max_links')].value
if num_pools > 0:
outfile.write(f'''pool link_pool
depth = {num_pools}
''')
with self.detect_vs_dep_prefix(tempfilename) as outfile:
self.generate_rules()
self.build_elements = []
self.generate_phony()
self.add_build_comment(NinjaComment('Build rules for targets'))
# Optionally capture compile args per target, for later use (i.e. VisStudio project's NMake intellisense include dirs, defines, and compile options).
if capture:
captured_compile_args_per_target = {}
for target in self.build.get_targets().values():
if isinstance(target, build.BuildTarget):
captured_compile_args_per_target[target.get_id()] = self.generate_common_compile_args_per_src_type(target)
for t in ProgressBar(self.build.get_targets().values(), desc='Generating targets'):
self.generate_target(t)
mlog.log_timestamp("Targets generated")
self.add_build_comment(NinjaComment('Test rules'))
self.generate_tests()
mlog.log_timestamp("Tests generated")
self.add_build_comment(NinjaComment('Install rules'))
self.generate_install()
mlog.log_timestamp("Install generated")
self.generate_dist()
mlog.log_timestamp("Dist generated")
key = OptionKey('b_coverage')
if (key in self.environment.coredata.options and
self.environment.coredata.options[key].value):
gcovr_exe, gcovr_version, lcov_exe, genhtml_exe, _ = environment.find_coverage_tools()
if gcovr_exe or (lcov_exe and genhtml_exe):
self.add_build_comment(NinjaComment('Coverage rules'))
self.generate_coverage_rules(gcovr_exe, gcovr_version)
mlog.log_timestamp("Coverage rules generated")
else:
# FIXME: since we explicitly opted in, should this be an error?
# The docs just say these targets will be created "if possible".
mlog.warning('Need gcovr or lcov/genhtml to generate any coverage reports')
self.add_build_comment(NinjaComment('Suffix'))
self.generate_utils()
mlog.log_timestamp("Utils generated")
self.generate_ending()
self.write_rules(outfile)
self.write_builds(outfile)
default = 'default all\n\n'
outfile.write(default)
# Only overwrite the old build file after the new one has been
# fully created.
os.replace(tempfilename, outfilename)
mlog.cmd_ci_include(outfilename) # For CI debugging
# Refresh Ninja's caches. https://github.com/ninja-build/ninja/pull/1685
if mesonlib.version_compare(self.ninja_version, '>=1.10.0') and os.path.exists('.ninja_deps'):
subprocess.call(self.ninja_command + ['-t', 'restat'])
subprocess.call(self.ninja_command + ['-t', 'cleandead'])
self.generate_compdb()
self.generate_rust_project_json()
if capture:
return captured_compile_args_per_target
def generate_rust_project_json(self) -> None:
"""Generate a rust-analyzer compatible rust-project.json file."""
if not self.rust_crates:
return
with open(os.path.join(self.environment.get_build_dir(), 'rust-project.json'),
'w', encoding='utf-8') as f:
json.dump(
{
"sysroot_src": os.path.join(self.environment.coredata.compilers.host['rust'].get_sysroot(),
'lib/rustlib/src/rust/library/'),
"crates": [c.to_json() for c in self.rust_crates.values()],
},
f, indent=4)
# http://clang.llvm.org/docs/JSONCompilationDatabase.html
def generate_compdb(self):
rules = []
# TODO: Rather than an explicit list here, rules could be marked in the
# rule store as being wanted in compdb
for for_machine in MachineChoice:
for compiler in self.environment.coredata.compilers[for_machine].values():
rules += [f"{rule}{ext}" for rule in [self.compiler_to_rule_name(compiler)]
for ext in ['', '_RSP']]
rules += [f"{rule}{ext}" for rule in [self.compiler_to_pch_rule_name(compiler)]
for ext in ['', '_RSP']]
compdb_options = ['-x'] if mesonlib.version_compare(self.ninja_version, '>=1.9') else []
ninja_compdb = self.ninja_command + ['-t', 'compdb'] + compdb_options + rules
builddir = self.environment.get_build_dir()
try:
jsondb = subprocess.check_output(ninja_compdb, cwd=builddir)
with open(os.path.join(builddir, 'compile_commands.json'), 'wb') as f:
f.write(jsondb)
except Exception:
mlog.warning('Could not create compilation database.', fatal=False)
# Get all generated headers. Any source file might need them so
# we need to add an order dependency to them.
def get_generated_headers(self, target):
if hasattr(target, 'cached_generated_headers'):
return target.cached_generated_headers
header_deps = []
# XXX: Why don't we add deps to CustomTarget headers here?
for genlist in target.get_generated_sources():
if isinstance(genlist, (build.CustomTarget, build.CustomTargetIndex)):
continue
for src in genlist.get_outputs():
if self.environment.is_header(src):
header_deps.append(self.get_target_generated_dir(target, genlist, src))
if 'vala' in target.compilers and not isinstance(target, build.Executable):
vala_header = File.from_built_file(self.get_target_dir(target), target.vala_header)
header_deps.append(vala_header)
# Recurse and find generated headers
for dep in itertools.chain(target.link_targets, target.link_whole_targets):
if isinstance(dep, (build.StaticLibrary, build.SharedLibrary)):
header_deps += self.get_generated_headers(dep)
target.cached_generated_headers = header_deps
return header_deps
def get_target_generated_sources(self, target: build.BuildTarget) -> T.MutableMapping[str, File]:
"""
Returns a dictionary with the keys being the path to the file
(relative to the build directory) and the value being the File object
representing the same path.
"""
srcs: T.MutableMapping[str, File] = OrderedDict()
for gensrc in target.get_generated_sources():
for s in gensrc.get_outputs():
rel_src = self.get_target_generated_dir(target, gensrc, s)
srcs[rel_src] = File.from_built_relative(rel_src)
return srcs
def get_target_sources(self, target: build.BuildTarget) -> T.MutableMapping[str, File]:
srcs: T.MutableMapping[str, File] = OrderedDict()
for s in target.get_sources():
# BuildTarget sources are always mesonlib.File files which are
# either in the source root, or generated with configure_file and
# in the build root
if not isinstance(s, File):
raise InvalidArguments(f'All sources in target {s!r} must be of type mesonlib.File')
f = s.rel_to_builddir(self.build_to_src)
srcs[f] = s
return srcs
def get_target_source_can_unity(self, target, source):
if isinstance(source, File):
source = source.fname
if self.environment.is_llvm_ir(source) or \
self.environment.is_assembly(source):
return False
suffix = os.path.splitext(source)[1][1:].lower()
for lang in backends.LANGS_CANT_UNITY:
if lang not in target.compilers:
continue
if suffix in target.compilers[lang].file_suffixes:
return False
return True
def create_target_source_introspection(self, target: build.Target, comp: compilers.Compiler, parameters, sources, generated_sources,
unity_sources: T.Optional[T.List[mesonlib.FileOrString]] = None):
'''
Adds the source file introspection information for a language of a target
Internal introspection storage format:
self.introspection_data = {
'<target ID>': {
<id tuple>: {
'language: 'lang',
'compiler': ['comp', 'exe', 'list'],
'parameters': ['UNIQUE', 'parameter', 'list'],
'sources': [],
'generated_sources': [],
}
}
}
'''
tid = target.get_id()
lang = comp.get_language()
tgt = self.introspection_data[tid]
# Find an existing entry or create a new one
id_hash = (lang, tuple(parameters))
src_block = tgt.get(id_hash, None)
if src_block is None:
# Convert parameters
if isinstance(parameters, CompilerArgs):
parameters = parameters.to_native(copy=True)
parameters = comp.compute_parameters_with_absolute_paths(parameters, self.build_dir)
# The new entry
src_block = {
'language': lang,
'compiler': comp.get_exelist(),
'parameters': parameters,
'sources': [],
'generated_sources': [],
'unity_sources': [],
}
tgt[id_hash] = src_block
def compute_path(file: mesonlib.FileOrString) -> str:
""" Make source files absolute """
if isinstance(file, File):
return file.absolute_path(self.source_dir, self.build_dir)
return os.path.normpath(os.path.join(self.build_dir, file))
src_block['sources'].extend(compute_path(x) for x in sources)
src_block['generated_sources'].extend(compute_path(x) for x in generated_sources)
if unity_sources:
src_block['unity_sources'].extend(compute_path(x) for x in unity_sources)
def create_target_linker_introspection(self, target: build.Target, linker: T.Union[Compiler, StaticLinker], parameters):
tid = target.get_id()
tgt = self.introspection_data[tid]
lnk_hash = tuple(parameters)
lnk_block = tgt.get(lnk_hash, None)
if lnk_block is None:
if isinstance(parameters, CompilerArgs):
parameters = parameters.to_native(copy=True)
if isinstance(linker, Compiler):
linkers = linker.get_linker_exelist()
else:
linkers = linker.get_exelist()
lnk_block = {
'linker': linkers,
'parameters': parameters,
}
tgt[lnk_hash] = lnk_block
def generate_target(self, target):
try:
if isinstance(target, build.BuildTarget):
os.makedirs(self.get_target_private_dir_abs(target))
except FileExistsError:
pass
if isinstance(target, build.CustomTarget):
self.generate_custom_target(target)
if isinstance(target, build.RunTarget):
self.generate_run_target(target)
compiled_sources = []
source2object = {}
name = target.get_id()
if name in self.processed_targets:
return
self.processed_targets.add(name)
# Initialize an empty introspection source list
self.introspection_data[name] = {}
# Generate rules for all dependency targets
self.process_target_dependencies(target)
self.generate_shlib_aliases(target, self.get_target_dir(target))
# If target uses a language that cannot link to C objects,
# just generate for that language and return.
if isinstance(target, build.Jar):
self.generate_jar_target(target)
return
if target.uses_rust():
self.generate_rust_target(target)
return
if 'cs' in target.compilers:
self.generate_cs_target(target)
return
if 'swift' in target.compilers:
self.generate_swift_target(target)
return
# CompileTarget compiles all its sources and does not do a final link.
# This is, for example, a preprocessor.
is_compile_target = isinstance(target, build.CompileTarget)
# Preexisting target C/C++ sources to be built; dict of full path to
# source relative to build root and the original File object.
target_sources: T.MutableMapping[str, File]
# GeneratedList and CustomTarget sources to be built; dict of the full
# path to source relative to build root and the generating target/list
generated_sources: T.MutableMapping[str, File]
# List of sources that have been transpiled from a DSL (like Vala) into
# a language that is handled below, such as C or C++
transpiled_sources: T.List[str]
if 'vala' in target.compilers:
# Sources consumed by valac are filtered out. These only contain
# C/C++ sources, objects, generated libs, and unknown sources now.
target_sources, generated_sources, \
transpiled_sources = self.generate_vala_compile(target)
elif 'cython' in target.compilers:
target_sources, generated_sources, \
transpiled_sources = self.generate_cython_transpile(target)
else:
target_sources = self.get_target_sources(target)
generated_sources = self.get_target_generated_sources(target)
transpiled_sources = []
self.scan_fortran_module_outputs(target)
# Generate rules for GeneratedLists
self.generate_generator_list_rules(target)
# Generate rules for building the remaining source files in this target
outname = self.get_target_filename(target)
obj_list = []
is_unity = target.is_unity
header_deps = []
unity_src = []
unity_deps = [] # Generated sources that must be built before compiling a Unity target.
header_deps += self.get_generated_headers(target)
if is_unity:
# Warn about incompatible sources if a unity build is enabled
langs = set(target.compilers.keys())
langs_cant = langs.intersection(backends.LANGS_CANT_UNITY)
if langs_cant:
langs_are = langs = ', '.join(langs_cant).upper()
langs_are += ' are' if len(langs_cant) > 1 else ' is'
msg = f'{langs_are} not supported in Unity builds yet, so {langs} ' \
f'sources in the {target.name!r} target will be compiled normally'
mlog.log(mlog.red('FIXME'), msg)
# Get a list of all generated headers that will be needed while building
# this target's sources (generated sources and preexisting sources).
# This will be set as dependencies of all the target's sources. At the
# same time, also deal with generated sources that need to be compiled.
generated_source_files = []
for rel_src in generated_sources.keys():
raw_src = File.from_built_relative(rel_src)
if self.environment.is_source(rel_src):
if is_unity and self.get_target_source_can_unity(target, rel_src):
unity_deps.append(raw_src)
abs_src = os.path.join(self.environment.get_build_dir(), rel_src)
unity_src.append(abs_src)
else:
generated_source_files.append(raw_src)
elif self.environment.is_object(rel_src):
obj_list.append(rel_src)
elif self.environment.is_library(rel_src) or modules.is_module_library(rel_src):
pass
elif is_compile_target:
generated_source_files.append(raw_src)
else:
# Assume anything not specifically a source file is a header. This is because
# people generate files with weird suffixes (.inc, .fh) that they then include
# in their source files.
header_deps.append(raw_src)
# For D language, the object of generated source files are added
# as order only deps because other files may depend on them
d_generated_deps = []
# These are the generated source files that need to be built for use by
# this target. We create the Ninja build file elements for this here
# because we need `header_deps` to be fully generated in the above loop.
for src in generated_source_files:
if self.environment.is_llvm_ir(src):
o, s = self.generate_llvm_ir_compile(target, src)
else:
o, s = self.generate_single_compile(target, src, True,
order_deps=header_deps)
compiled_sources.append(s)
source2object[s] = o
obj_list.append(o)
if s.split('.')[-1] in compilers.lang_suffixes['d']:
d_generated_deps.append(o)
use_pch = self.target_uses_pch(target)
if use_pch and target.has_pch():
pch_objects = self.generate_pch(target, header_deps=header_deps)
else:
pch_objects = []
o, od = self.flatten_object_list(target)
obj_targets = [t for t in od if t.uses_fortran()]
obj_list.extend(o)
fortran_order_deps = [File(True, *os.path.split(self.get_target_filename(t))) for t in obj_targets]
fortran_inc_args: T.List[str] = []
if target.uses_fortran():
fortran_inc_args = mesonlib.listify([target.compilers['fortran'].get_include_args(
self.get_target_private_dir(t), is_system=False) for t in obj_targets])
# Generate compilation targets for C sources generated from Vala
# sources. This can be extended to other $LANG->C compilers later if
# necessary. This needs to be separate for at least Vala
#
# Do not try to unity-build the generated c files from vala, as these
# often contain duplicate symbols and will fail to compile properly
vala_generated_source_files = []
for src in transpiled_sources:
raw_src = File.from_built_relative(src)
# Generated targets are ordered deps because the must exist
# before the sources compiling them are used. After the first
# compile we get precise dependency info from dep files.
# This should work in all cases. If it does not, then just
# move them from orderdeps to proper deps.
if self.environment.is_header(src):
header_deps.append(raw_src)
else:
# We gather all these and generate compile rules below
# after `header_deps` (above) is fully generated
vala_generated_source_files.append(raw_src)
for src in vala_generated_source_files:
# Passing 'vala' here signifies that we want the compile
# arguments to be specialized for C code generated by
# valac. For instance, no warnings should be emitted.
o, s = self.generate_single_compile(target, src, 'vala', [], header_deps)
obj_list.append(o)
# Generate compile targets for all the preexisting sources for this target
for src in target_sources.values():
if not self.environment.is_header(src) or is_compile_target:
if self.environment.is_llvm_ir(src):
o, s = self.generate_llvm_ir_compile(target, src)
obj_list.append(o)
elif is_unity and self.get_target_source_can_unity(target, src):
abs_src = os.path.join(self.environment.get_build_dir(),
src.rel_to_builddir(self.build_to_src))
unity_src.append(abs_src)
else:
o, s = self.generate_single_compile(target, src, False, [],
header_deps + d_generated_deps + fortran_order_deps,
fortran_inc_args)
obj_list.append(o)
compiled_sources.append(s)
source2object[s] = o
if is_unity:
for src in self.generate_unity_files(target, unity_src):
o, s = self.generate_single_compile(target, src, True, unity_deps + header_deps + d_generated_deps,
fortran_order_deps, fortran_inc_args, unity_src)
obj_list.append(o)
compiled_sources.append(s)
source2object[s] = o
if is_compile_target:
# Skip the link stage for this special type of target
return
linker, stdlib_args = self.determine_linker_and_stdlib_args(target)
if isinstance(target, build.StaticLibrary) and target.prelink:
final_obj_list = self.generate_prelink(target, obj_list)
else:
final_obj_list = obj_list
elem = self.generate_link(target, outname, final_obj_list, linker, pch_objects, stdlib_args=stdlib_args)
self.generate_dependency_scan_target(target, compiled_sources, source2object, generated_source_files, fortran_order_deps)
self.add_build(elem)
#In AIX, we archive shared libraries. If the instance is a shared library, we add a command to archive the shared library
#object and create the build element.
if isinstance(target, build.SharedLibrary) and self.environment.machines[target.for_machine].is_aix():
elem = NinjaBuildElement(self.all_outputs, linker.get_archive_name(outname), 'AIX_LINKER', [outname])
self.add_build(elem)
def should_use_dyndeps_for_target(self, target: 'build.BuildTarget') -> bool:
if mesonlib.version_compare(self.ninja_version, '<1.10.0'):
return False
if 'fortran' in target.compilers:
return True
if 'cpp' not in target.compilers:
return False
if '-fmodules-ts' in target.extra_args.get('cpp', []):
return True
# Currently only the preview version of Visual Studio is supported.
cpp = target.compilers['cpp']
if cpp.get_id() != 'msvc':
return False
cppversion = target.get_option(OptionKey('std', machine=target.for_machine, lang='cpp'))
if cppversion not in ('latest', 'c++latest', 'vc++latest'):
return False
if not mesonlib.current_vs_supports_modules():
return False
if mesonlib.version_compare(cpp.version, '<19.28.28617'):
return False
return True
def generate_dependency_scan_target(self, target: build.BuildTarget, compiled_sources, source2object, generated_source_files: T.List[mesonlib.File],
object_deps: T.List['mesonlib.FileOrString']) -> None:
if not self.should_use_dyndeps_for_target(target):
return
depscan_file = self.get_dep_scan_file_for(target)
pickle_base = target.name + '.dat'
pickle_file = os.path.join(self.get_target_private_dir(target), pickle_base).replace('\\', '/')
pickle_abs = os.path.join(self.get_target_private_dir_abs(target), pickle_base).replace('\\', '/')
json_abs = os.path.join(self.get_target_private_dir_abs(target), f'{target.name}-deps.json').replace('\\', '/')
rule_name = 'depscan'
scan_sources = self.select_sources_to_scan(compiled_sources)
# Dump the sources as a json list. This avoids potential problems where
# the number of sources passed to depscan exceeds the limit imposed by
# the OS.
with open(json_abs, 'w', encoding='utf-8') as f:
json.dump(scan_sources, f)
elem = NinjaBuildElement(self.all_outputs, depscan_file, rule_name, json_abs)
elem.add_item('picklefile', pickle_file)
# Add any generated outputs to the order deps of the scan target, so
# that those sources are present
for g in generated_source_files:
elem.orderdeps.add(g.relative_name())
elem.orderdeps.update(object_deps)
scaninfo = TargetDependencyScannerInfo(self.get_target_private_dir(target), source2object)
with open(pickle_abs, 'wb') as p:
pickle.dump(scaninfo, p)
self.add_build(elem)
def select_sources_to_scan(self, compiled_sources):
# in practice pick up C++ and Fortran files. If some other language
# requires scanning (possibly Java to deal with inner class files)
# then add them here.
all_suffixes = set(compilers.lang_suffixes['cpp']) | set(compilers.lang_suffixes['fortran'])
selected_sources = []
for source in compiled_sources:
ext = os.path.splitext(source)[1][1:]
if ext != 'C':
ext = ext.lower()
if ext in all_suffixes:
selected_sources.append(source)
return selected_sources
def process_target_dependencies(self, target):
for t in target.get_dependencies():
if t.get_id() not in self.processed_targets:
self.generate_target(t)
def custom_target_generator_inputs(self, target):
for s in target.sources:
if isinstance(s, build.GeneratedList):
self.generate_genlist_for_target(s, target)
def unwrap_dep_list(self, target):
deps = []
for i in target.get_dependencies():
# FIXME, should not grab element at zero but rather expand all.
if isinstance(i, list):
i = i[0]
# Add a dependency on all the outputs of this target
for output in i.get_outputs():
deps.append(os.path.join(self.get_target_dir(i), output))
return deps
def generate_custom_target(self, target):
self.custom_target_generator_inputs(target)
(srcs, ofilenames, cmd) = self.eval_custom_target_command(target)
deps = self.unwrap_dep_list(target)
deps += self.get_custom_target_depend_files(target)
if target.build_always_stale:
deps.append('PHONY')
if target.depfile is None:
rulename = 'CUSTOM_COMMAND'
else:
rulename = 'CUSTOM_COMMAND_DEP'
elem = NinjaBuildElement(self.all_outputs, ofilenames, rulename, srcs)
elem.add_dep(deps)
for d in target.extra_depends:
# Add a dependency on all the outputs of this target
for output in d.get_outputs():
elem.add_dep(os.path.join(self.get_target_dir(d), output))
cmd, reason = self.as_meson_exe_cmdline(target.command[0], cmd[1:],
extra_bdeps=target.get_transitive_build_target_deps(),
capture=ofilenames[0] if target.capture else None,
feed=srcs[0] if target.feed else None,
env=target.env,
verbose=target.console)
if reason:
cmd_type = f' (wrapped by meson {reason})'
else:
cmd_type = ''
if target.depfile is not None:
depfile = target.get_dep_outname(elem.infilenames)
rel_dfile = os.path.join(self.get_target_dir(target), depfile)
abs_pdir = os.path.join(self.environment.get_build_dir(), self.get_target_dir(target))
os.makedirs(abs_pdir, exist_ok=True)
elem.add_item('DEPFILE', rel_dfile)
if target.console:
elem.add_item('pool', 'console')
full_name = Path(target.subdir, target.name).as_posix()
elem.add_item('COMMAND', cmd)
elem.add_item('description', f'Generating {full_name} with a custom command{cmd_type}')
self.add_build(elem)
self.processed_targets.add(target.get_id())
def build_run_target_name(self, target):
if target.subproject != '':
subproject_prefix = f'{target.subproject}@@'
else:
subproject_prefix = ''
return f'{subproject_prefix}{target.name}'
def generate_run_target(self, target: build.RunTarget):
target_name = self.build_run_target_name(target)
if not target.command:
# This is an alias target, it has no command, it just depends on
# other targets.
elem = NinjaBuildElement(self.all_outputs, target_name, 'phony', [])
else:
target_env = self.get_run_target_env(target)
_, _, cmd = self.eval_custom_target_command(target)
meson_exe_cmd, reason = self.as_meson_exe_cmdline(target.command[0], cmd[1:],
env=target_env,
verbose=True)
cmd_type = f' (wrapped by meson {reason})' if reason else ''
elem = self.create_phony_target(target_name, 'CUSTOM_COMMAND', [])
elem.add_item('COMMAND', meson_exe_cmd)
elem.add_item('description', f'Running external command {target.name}{cmd_type}')
elem.add_item('pool', 'console')
deps = self.unwrap_dep_list(target)
deps += self.get_custom_target_depend_files(target)
elem.add_dep(deps)
self.add_build(elem)
self.processed_targets.add(target.get_id())
def generate_coverage_command(self, elem, outputs):
targets = self.build.get_targets().values()
use_llvm_cov = False
for target in targets:
if not hasattr(target, 'compilers'):
continue
for compiler in target.compilers.values():
if compiler.get_id() == 'clang' and not compiler.info.is_darwin():
use_llvm_cov = True
break
elem.add_item('COMMAND', self.environment.get_build_command() +
['--internal', 'coverage'] +
outputs +
[self.environment.get_source_dir(),
os.path.join(self.environment.get_source_dir(),
self.build.get_subproject_dir()),
self.environment.get_build_dir(),
self.environment.get_log_dir()] +
(['--use_llvm_cov'] if use_llvm_cov else []))
def generate_coverage_rules(self, gcovr_exe: T.Optional[str], gcovr_version: T.Optional[str]):
e = self.create_phony_target('coverage', 'CUSTOM_COMMAND', 'PHONY')
self.generate_coverage_command(e, [])
e.add_item('description', 'Generates coverage reports')
self.add_build(e)
self.generate_coverage_legacy_rules(gcovr_exe, gcovr_version)
def generate_coverage_legacy_rules(self, gcovr_exe: T.Optional[str], gcovr_version: T.Optional[str]):
e = self.create_phony_target('coverage-html', 'CUSTOM_COMMAND', 'PHONY')
self.generate_coverage_command(e, ['--html'])
e.add_item('description', 'Generates HTML coverage report')
self.add_build(e)
if gcovr_exe:
e = self.create_phony_target('coverage-xml', 'CUSTOM_COMMAND', 'PHONY')
self.generate_coverage_command(e, ['--xml'])
e.add_item('description', 'Generates XML coverage report')
self.add_build(e)
e = self.create_phony_target('coverage-text', 'CUSTOM_COMMAND', 'PHONY')
self.generate_coverage_command(e, ['--text'])
e.add_item('description', 'Generates text coverage report')
self.add_build(e)
if mesonlib.version_compare(gcovr_version, '>=4.2'):
e = self.create_phony_target('coverage-sonarqube', 'CUSTOM_COMMAND', 'PHONY')
self.generate_coverage_command(e, ['--sonarqube'])
e.add_item('description', 'Generates Sonarqube XML coverage report')
self.add_build(e)
def generate_install(self):
self.create_install_data_files()
elem = self.create_phony_target('install', 'CUSTOM_COMMAND', 'PHONY')
elem.add_dep('all')
elem.add_item('DESC', 'Installing files.')
elem.add_item('COMMAND', self.environment.get_build_command() + ['install', '--no-rebuild'])
elem.add_item('pool', 'console')
self.add_build(elem)
def generate_tests(self):
self.serialize_tests()
cmd = self.environment.get_build_command(True) + ['test', '--no-rebuild']
if not self.environment.coredata.get_option(OptionKey('stdsplit')):
cmd += ['--no-stdsplit']
if self.environment.coredata.get_option(OptionKey('errorlogs')):
cmd += ['--print-errorlogs']
elem = self.create_phony_target('test', 'CUSTOM_COMMAND', ['all', 'PHONY'])
elem.add_item('COMMAND', cmd)
elem.add_item('DESC', 'Running all tests.')
elem.add_item('pool', 'console')
self.add_build(elem)
# And then benchmarks.
cmd = self.environment.get_build_command(True) + [
'test', '--benchmark', '--logbase',
'benchmarklog', '--num-processes=1', '--no-rebuild']
elem = self.create_phony_target('benchmark', 'CUSTOM_COMMAND', ['all', 'PHONY'])
elem.add_item('COMMAND', cmd)
elem.add_item('DESC', 'Running benchmark suite.')
elem.add_item('pool', 'console')
self.add_build(elem)
def generate_rules(self):
self.rules = []
self.ruledict = {}
self.add_rule_comment(NinjaComment('Rules for module scanning.'))
self.generate_scanner_rules()
self.add_rule_comment(NinjaComment('Rules for compiling.'))
self.generate_compile_rules()
self.add_rule_comment(NinjaComment('Rules for linking.'))
self.generate_static_link_rules()
self.generate_dynamic_link_rules()
self.add_rule_comment(NinjaComment('Other rules'))
# Ninja errors out if you have deps = gcc but no depfile, so we must
# have two rules for custom commands.
self.add_rule(NinjaRule('CUSTOM_COMMAND', ['$COMMAND'], [], '$DESC',
extra='restat = 1'))
self.add_rule(NinjaRule('CUSTOM_COMMAND_DEP', ['$COMMAND'], [], '$DESC',
deps='gcc', depfile='$DEPFILE',
extra='restat = 1'))
self.add_rule(NinjaRule('COPY_FILE', self.environment.get_build_command() + ['--internal', 'copy'],
['$in', '$out'], 'Copying $in to $out'))
c = self.environment.get_build_command() + \
['--internal',
'regenerate',
self.environment.get_source_dir(),
# Ninja always runs from the build_dir. This includes cases where the user moved the
# build directory and invalidated most references. Make sure it still regenerates.
'.']
self.add_rule(NinjaRule('REGENERATE_BUILD',
c, [],
'Regenerating build files.',
extra='generator = 1'))
def add_rule_comment(self, comment: NinjaComment) -> None:
self.rules.append(comment)
def add_build_comment(self, comment: NinjaComment) -> None:
self.build_elements.append(comment)
def add_rule(self, rule: NinjaRule) -> None:
if rule.name in self.ruledict:
raise MesonException(f'Tried to add rule {rule.name} twice.')
self.rules.append(rule)
self.ruledict[rule.name] = rule
def add_build(self, build: NinjaBuildElement) -> None:
build.check_outputs()
self.build_elements.append(build)
if build.rulename != 'phony':
# reference rule
if build.rulename in self.ruledict:
build.rule = self.ruledict[build.rulename]
else:
mlog.warning(f"build statement for {build.outfilenames} references nonexistent rule {build.rulename}")
def write_rules(self, outfile: T.TextIO) -> None:
for b in self.build_elements:
if isinstance(b, NinjaBuildElement):
b.count_rule_references()
for r in self.rules:
r.write(outfile)
def write_builds(self, outfile: T.TextIO) -> None:
for b in ProgressBar(self.build_elements, desc='Writing build.ninja'):
b.write(outfile)
mlog.log_timestamp("build.ninja generated")
def generate_phony(self) -> None:
self.add_build_comment(NinjaComment('Phony build target, always out of date'))
elem = NinjaBuildElement(self.all_outputs, 'PHONY', 'phony', '')
self.add_build(elem)
def generate_jar_target(self, target: build.Jar):
fname = target.get_filename()
outname_rel = os.path.join(self.get_target_dir(target), fname)
src_list = target.get_sources()
resources = target.get_java_resources()
class_list = []
compiler = target.compilers['java']
c = 'c'
m = 'm'
e = ''
f = 'f'
main_class = target.get_main_class()
if main_class != '':
e = 'e'
# Add possible java generated files to src list
generated_sources = self.get_target_generated_sources(target)
gen_src_list = []
for rel_src in generated_sources.keys():
raw_src = File.from_built_relative(rel_src)
if rel_src.endswith('.java'):
gen_src_list.append(raw_src)
compile_args = self.determine_single_java_compile_args(target, compiler)
for src in src_list + gen_src_list:
plain_class_path = self.generate_single_java_compile(src, target, compiler, compile_args)
class_list.append(plain_class_path)
class_dep_list = [os.path.join(self.get_target_private_dir(target), i) for i in class_list]
manifest_path = os.path.join(self.get_target_private_dir(target), 'META-INF', 'MANIFEST.MF')
manifest_fullpath = os.path.join(self.environment.get_build_dir(), manifest_path)
os.makedirs(os.path.dirname(manifest_fullpath), exist_ok=True)
with open(manifest_fullpath, 'w', encoding='utf-8') as manifest:
if any(target.link_targets):
manifest.write('Class-Path: ')
cp_paths = [os.path.join(self.get_target_dir(l), l.get_filename()) for l in target.link_targets]
manifest.write(' '.join(cp_paths))
manifest.write('\n')
jar_rule = 'java_LINKER'
commands = [c + m + e + f]
commands.append(manifest_path)
if e != '':
commands.append(main_class)
commands.append(self.get_target_filename(target))
# Java compilation can produce an arbitrary number of output
# class files for a single source file. Thus tell jar to just
# grab everything in the final package.
commands += ['-C', self.get_target_private_dir(target), '.']
elem = NinjaBuildElement(self.all_outputs, outname_rel, jar_rule, [])
elem.add_dep(class_dep_list)
if resources:
# Copy all resources into the root of the jar.
elem.add_orderdep(self.__generate_sources_structure(Path(self.get_target_private_dir(target)), resources)[0])
elem.add_item('ARGS', commands)
self.add_build(elem)
# Create introspection information
self.create_target_source_introspection(target, compiler, compile_args, src_list, gen_src_list)
def generate_cs_resource_tasks(self, target):
args = []
deps = []
for r in target.resources:
rel_sourcefile = os.path.join(self.build_to_src, target.subdir, r)
if r.endswith('.resources'):
a = '-resource:' + rel_sourcefile
elif r.endswith('.txt') or r.endswith('.resx'):
ofilebase = os.path.splitext(os.path.basename(r))[0] + '.resources'
ofilename = os.path.join(self.get_target_private_dir(target), ofilebase)
elem = NinjaBuildElement(self.all_outputs, ofilename, "CUSTOM_COMMAND", rel_sourcefile)
elem.add_item('COMMAND', ['resgen', rel_sourcefile, ofilename])
elem.add_item('DESC', f'Compiling resource {rel_sourcefile}')
self.add_build(elem)
deps.append(ofilename)
a = '-resource:' + ofilename
else:
raise InvalidArguments(f'Unknown resource file {r}.')
args.append(a)
return args, deps
def generate_cs_target(self, target: build.BuildTarget):
buildtype = target.get_option(OptionKey('buildtype'))
fname = target.get_filename()
outname_rel = os.path.join(self.get_target_dir(target), fname)
src_list = target.get_sources()
compiler = target.compilers['cs']
rel_srcs = [os.path.normpath(s.rel_to_builddir(self.build_to_src)) for s in src_list]
deps = []
commands = compiler.compiler_args(target.extra_args.get('cs', []))
commands += compiler.get_buildtype_args(buildtype)
commands += compiler.get_optimization_args(target.get_option(OptionKey('optimization')))
commands += compiler.get_debug_args(target.get_option(OptionKey('debug')))
if isinstance(target, build.Executable):
commands.append('-target:exe')
elif isinstance(target, build.SharedLibrary):
commands.append('-target:library')
else:
raise MesonException('Unknown C# target type.')
(resource_args, resource_deps) = self.generate_cs_resource_tasks(target)
commands += resource_args
deps += resource_deps
commands += compiler.get_output_args(outname_rel)
for l in target.link_targets:
lname = os.path.join(self.get_target_dir(l), l.get_filename())
commands += compiler.get_link_args(lname)
deps.append(lname)
if '-g' in commands:
outputs = [outname_rel, outname_rel + '.mdb']
else:
outputs = [outname_rel]
generated_sources = self.get_target_generated_sources(target)
generated_rel_srcs = []
for rel_src in generated_sources.keys():
if rel_src.lower().endswith('.cs'):
generated_rel_srcs.append(os.path.normpath(rel_src))
deps.append(os.path.normpath(rel_src))
for dep in target.get_external_deps():
commands.extend_direct(dep.get_link_args())
commands += self.build.get_project_args(compiler, target.subproject, target.for_machine)
commands += self.build.get_global_args(compiler, target.for_machine)
elem = NinjaBuildElement(self.all_outputs, outputs, self.compiler_to_rule_name(compiler), rel_srcs + generated_rel_srcs)
elem.add_dep(deps)
elem.add_item('ARGS', commands)
self.add_build(elem)
self.generate_generator_list_rules(target)
self.create_target_source_introspection(target, compiler, commands, rel_srcs, generated_rel_srcs)
def determine_single_java_compile_args(self, target, compiler):
args = []
args += compiler.get_buildtype_args(target.get_option(OptionKey('buildtype')))
args += self.build.get_global_args(compiler, target.for_machine)
args += self.build.get_project_args(compiler, target.subproject, target.for_machine)
args += target.get_java_args()
args += compiler.get_output_args(self.get_target_private_dir(target))
args += target.get_classpath_args()
curdir = target.get_subdir()
sourcepath = os.path.join(self.build_to_src, curdir) + os.pathsep
sourcepath += os.path.normpath(curdir) + os.pathsep
for i in target.include_dirs:
for idir in i.get_incdirs():
sourcepath += os.path.join(self.build_to_src, i.curdir, idir) + os.pathsep
args += ['-sourcepath', sourcepath]
return args
def generate_single_java_compile(self, src, target, compiler, args):
deps = [os.path.join(self.get_target_dir(l), l.get_filename()) for l in target.link_targets]
generated_sources = self.get_target_generated_sources(target)
for rel_src in generated_sources.keys():
if rel_src.endswith('.java'):
deps.append(rel_src)
rel_src = src.rel_to_builddir(self.build_to_src)
plain_class_path = src.fname[:-4] + 'class'
rel_obj = os.path.join(self.get_target_private_dir(target), plain_class_path)
element = NinjaBuildElement(self.all_outputs, rel_obj, self.compiler_to_rule_name(compiler), rel_src)
element.add_dep(deps)
element.add_item('ARGS', args)
self.add_build(element)
return plain_class_path
def generate_java_link(self):
rule = 'java_LINKER'
command = ['jar', '$ARGS']
description = 'Creating JAR $out'
self.add_rule(NinjaRule(rule, command, [], description))
def determine_dep_vapis(self, target):
"""
Peek into the sources of BuildTargets we're linking with, and if any of
them was built with Vala, assume that it also generated a .vapi file of
the same name as the BuildTarget and return the path to it relative to
the build directory.
"""
result = OrderedSet()
for dep in itertools.chain(target.link_targets, target.link_whole_targets):
if not dep.is_linkable_target():
continue
for i in dep.sources:
if hasattr(i, 'fname'):
i = i.fname
if i.split('.')[-1] in compilers.lang_suffixes['vala']:
vapiname = dep.vala_vapi
fullname = os.path.join(self.get_target_dir(dep), vapiname)
result.add(fullname)
break
return list(result)
def split_vala_sources(self, t: build.BuildTarget) -> \
T.Tuple[T.MutableMapping[str, File], T.MutableMapping[str, File],
T.Tuple[T.MutableMapping[str, File], T.MutableMapping]]:
"""
Splits the target's sources into .vala, .gs, .vapi, and other sources.
Handles both preexisting and generated sources.
Returns a tuple (vala, vapi, others) each of which is a dictionary with
the keys being the path to the file (relative to the build directory)
and the value being the object that generated or represents the file.
"""
vala: T.MutableMapping[str, File] = OrderedDict()
vapi: T.MutableMapping[str, File] = OrderedDict()
others: T.MutableMapping[str, File] = OrderedDict()
othersgen: T.MutableMapping[str, File] = OrderedDict()
# Split preexisting sources
for s in t.get_sources():
# BuildTarget sources are always mesonlib.File files which are
# either in the source root, or generated with configure_file and
# in the build root
if not isinstance(s, File):
raise InvalidArguments(f'All sources in target {t!r} must be of type mesonlib.File, not {s!r}')
f = s.rel_to_builddir(self.build_to_src)
if s.endswith(('.vala', '.gs')):
srctype = vala
elif s.endswith('.vapi'):
srctype = vapi
else:
srctype = others
srctype[f] = s
# Split generated sources
for gensrc in t.get_generated_sources():
for s in gensrc.get_outputs():
f = self.get_target_generated_dir(t, gensrc, s)
if s.endswith(('.vala', '.gs')):
srctype = vala
elif s.endswith('.vapi'):
srctype = vapi
# Generated non-Vala (C/C++) sources. Won't be used for
# generating the Vala compile rule below.
else:
srctype = othersgen
# Duplicate outputs are disastrous
if f in srctype and srctype[f] is not gensrc:
msg = 'Duplicate output {0!r} from {1!r} {2!r}; ' \
'conflicts with {0!r} from {4!r} {3!r}' \
''.format(f, type(gensrc).__name__, gensrc.name,
srctype[f].name, type(srctype[f]).__name__)
raise InvalidArguments(msg)
# Store 'somefile.vala': GeneratedList (or CustomTarget)
srctype[f] = gensrc
return vala, vapi, (others, othersgen)
def generate_vala_compile(self, target: build.BuildTarget) -> \
T.Tuple[T.MutableMapping[str, File], T.MutableMapping[str, File], T.List[str]]:
"""Vala is compiled into C. Set up all necessary build steps here."""
(vala_src, vapi_src, other_src) = self.split_vala_sources(target)
extra_dep_files = []
if not vala_src:
raise InvalidArguments(f'Vala library {target.name!r} has no Vala or Genie source files.')
valac = target.compilers['vala']
c_out_dir = self.get_target_private_dir(target)
# C files generated by valac
vala_c_src: T.List[str] = []
# Files generated by valac
valac_outputs: T.List = []
# All sources that are passed to valac on the commandline
all_files = list(vapi_src)
# Passed as --basedir
srcbasedir = os.path.join(self.build_to_src, target.get_subdir())
for (vala_file, gensrc) in vala_src.items():
all_files.append(vala_file)
# Figure out where the Vala compiler will write the compiled C file
#
# If the Vala file is in a subdir of the build dir (in our case
# because it was generated/built by something else), and is also
# a subdir of --basedir (because the builddir is in the source
# tree, and the target subdir is the source root), the subdir
# components from the source root till the private builddir will be
# duplicated inside the private builddir. Otherwise, just the
# basename will be used.
#
# If the Vala file is outside the build directory, the paths from
# the --basedir till the subdir will be duplicated inside the
# private builddir.
if isinstance(gensrc, (build.CustomTarget, build.GeneratedList)) or gensrc.is_built:
vala_c_file = os.path.splitext(os.path.basename(vala_file))[0] + '.c'
# Check if the vala file is in a subdir of --basedir
abs_srcbasedir = os.path.join(self.environment.get_source_dir(), target.get_subdir())
abs_vala_file = os.path.join(self.environment.get_build_dir(), vala_file)
if PurePath(os.path.commonpath((abs_srcbasedir, abs_vala_file))) == PurePath(abs_srcbasedir):
vala_c_subdir = PurePath(abs_vala_file).parent.relative_to(abs_srcbasedir)
vala_c_file = os.path.join(str(vala_c_subdir), vala_c_file)
else:
path_to_target = os.path.join(self.build_to_src, target.get_subdir())
if vala_file.startswith(path_to_target):
vala_c_file = os.path.splitext(os.path.relpath(vala_file, path_to_target))[0] + '.c'
else:
vala_c_file = os.path.splitext(os.path.basename(vala_file))[0] + '.c'
# All this will be placed inside the c_out_dir
vala_c_file = os.path.join(c_out_dir, vala_c_file)
vala_c_src.append(vala_c_file)
valac_outputs.append(vala_c_file)
args = self.generate_basic_compiler_args(target, valac)
args += valac.get_colorout_args(target.get_option(OptionKey('b_colorout')))
# Tell Valac to output everything in our private directory. Sadly this
# means it will also preserve the directory components of Vala sources
# found inside the build tree (generated sources).
args += ['--directory', c_out_dir]
args += ['--basedir', srcbasedir]
if target.is_linkable_target():
# Library name
args += ['--library', target.name]
# Outputted header
hname = os.path.join(self.get_target_dir(target), target.vala_header)
args += ['--header', hname]
if target.is_unity:
# Without this the declarations will get duplicated in the .c
# files and cause a build failure when all of them are
# #include-d in one .c file.
# https://github.com/mesonbuild/meson/issues/1969
args += ['--use-header']
valac_outputs.append(hname)
# Outputted vapi file
vapiname = os.path.join(self.get_target_dir(target), target.vala_vapi)
# Force valac to write the vapi and gir files in the target build dir.
# Without this, it will write it inside c_out_dir
args += ['--vapi', os.path.join('..', target.vala_vapi)]
valac_outputs.append(vapiname)
target.outputs += [target.vala_header, target.vala_vapi]
target.install_tag += ['devel', 'devel']
# Install header and vapi to default locations if user requests this
if len(target.install_dir) > 1 and target.install_dir[1] is True:
target.install_dir[1] = self.environment.get_includedir()
if len(target.install_dir) > 2 and target.install_dir[2] is True:
target.install_dir[2] = os.path.join(self.environment.get_datadir(), 'vala', 'vapi')
# Generate GIR if requested
if isinstance(target.vala_gir, str):
girname = os.path.join(self.get_target_dir(target), target.vala_gir)
args += ['--gir', os.path.join('..', target.vala_gir)]
valac_outputs.append(girname)
target.outputs.append(target.vala_gir)
target.install_tag.append('devel')
# Install GIR to default location if requested by user
if len(target.install_dir) > 3 and target.install_dir[3] is True:
target.install_dir[3] = os.path.join(self.environment.get_datadir(), 'gir-1.0')
# Detect gresources and add --gresources arguments for each
for gensrc in other_src[1].values():
if isinstance(gensrc, modules.GResourceTarget):
gres_xml, = self.get_custom_target_sources(gensrc)
args += ['--gresources=' + gres_xml]
extra_args = []
for a in target.extra_args.get('vala', []):
if isinstance(a, File):
relname = a.rel_to_builddir(self.build_to_src)
extra_dep_files.append(relname)
extra_args.append(relname)
else:
extra_args.append(a)
dependency_vapis = self.determine_dep_vapis(target)
extra_dep_files += dependency_vapis
args += extra_args
element = NinjaBuildElement(self.all_outputs, valac_outputs,
self.compiler_to_rule_name(valac),
all_files + dependency_vapis)
element.add_item('ARGS', args)
element.add_dep(extra_dep_files)
self.add_build(element)
self.create_target_source_introspection(target, valac, args, all_files, [])
return other_src[0], other_src[1], vala_c_src
def generate_cython_transpile(self, target: build.BuildTarget) -> \
T.Tuple[T.MutableMapping[str, File], T.MutableMapping[str, File], T.List[str]]:
"""Generate rules for transpiling Cython files to C or C++
XXX: Currently only C is handled.
"""
static_sources: T.MutableMapping[str, File] = OrderedDict()
generated_sources: T.MutableMapping[str, File] = OrderedDict()
cython_sources: T.List[str] = []
cython = target.compilers['cython']
args: T.List[str] = []
args += cython.get_always_args()
args += cython.get_buildtype_args(target.get_option(OptionKey('buildtype')))
args += cython.get_debug_args(target.get_option(OptionKey('debug')))
args += cython.get_optimization_args(target.get_option(OptionKey('optimization')))
args += cython.get_option_compile_args(target.get_options())
args += self.build.get_global_args(cython, target.for_machine)
args += self.build.get_project_args(cython, target.subproject, target.for_machine)
args += target.get_extra_args('cython')
ext = target.get_option(OptionKey('language', machine=target.for_machine, lang='cython'))
pyx_sources = [] # Keep track of sources we're adding to build
for src in target.get_sources():
if src.endswith('.pyx'):
output = os.path.join(self.get_target_private_dir(target), f'{src}.{ext}')
element = NinjaBuildElement(
self.all_outputs, [output],
self.compiler_to_rule_name(cython),
[src.absolute_path(self.environment.get_source_dir(), self.environment.get_build_dir())])
element.add_item('ARGS', args)
self.add_build(element)
# TODO: introspection?
cython_sources.append(output)
pyx_sources.append(element)
else:
static_sources[src.rel_to_builddir(self.build_to_src)] = src
header_deps = [] # Keep track of generated headers for those sources
for gen in target.get_generated_sources():
for ssrc in gen.get_outputs():
if isinstance(gen, GeneratedList):
ssrc = os.path.join(self.get_target_private_dir(target), ssrc)
else:
ssrc = os.path.join(gen.get_subdir(), ssrc)
if ssrc.endswith('.pyx'):
output = os.path.join(self.get_target_private_dir(target), f'{ssrc}.{ext}')
element = NinjaBuildElement(
self.all_outputs, [output],
self.compiler_to_rule_name(cython),
[ssrc])
element.add_item('ARGS', args)
self.add_build(element)
pyx_sources.append(element)
# TODO: introspection?
cython_sources.append(output)
else:
generated_sources[ssrc] = mesonlib.File.from_built_file(gen.get_subdir(), ssrc)
# Following logic in L883-900 where we determine whether to add generated source
# as a header(order-only) dep to the .so compilation rule
if not self.environment.is_source(ssrc) and \
not self.environment.is_object(ssrc) and \
not self.environment.is_library(ssrc) and \
not modules.is_module_library(ssrc):
header_deps.append(ssrc)
for source in pyx_sources:
source.add_orderdep(header_deps)
return static_sources, generated_sources, cython_sources
def _generate_copy_target(self, src: 'mesonlib.FileOrString', output: Path) -> None:
"""Create a target to copy a source file from one location to another."""
if isinstance(src, File):
instr = src.absolute_path(self.environment.source_dir, self.environment.build_dir)
else:
instr = src
elem = NinjaBuildElement(self.all_outputs, [str(output)], 'COPY_FILE', [instr])
elem.add_orderdep(instr)
self.add_build(elem)
def __generate_sources_structure(self, root: Path, structured_sources: build.StructuredSources) -> T.Tuple[T.List[str], T.Optional[str]]:
first_file: T.Optional[str] = None
orderdeps: T.List[str] = []
for path, files in structured_sources.sources.items():
for file in files:
if isinstance(file, File):
out = root / path / Path(file.fname).name
orderdeps.append(str(out))
self._generate_copy_target(file, out)
if first_file is None:
first_file = str(out)
else:
for f in file.get_outputs():
out = root / path / f
orderdeps.append(str(out))
self._generate_copy_target(str(Path(file.subdir) / f), out)
if first_file is None:
first_file = str(out)
return orderdeps, first_file
def _add_rust_project_entry(self, name: str, main_rust_file: str, args: CompilerArgs,
from_subproject: bool, proc_macro_dylib_path: T.Optional[str],
deps: T.List[RustDep]) -> None:
raw_edition: T.Optional[str] = mesonlib.first(reversed(args), lambda x: x.startswith('--edition'))
edition: RUST_EDITIONS = '2015' if not raw_edition else raw_edition.split('=')[-1]
cfg: T.List[str] = []
arg_itr: T.Iterator[str] = iter(args)
for arg in arg_itr:
if arg == '--cfg':
cfg.append(next(arg_itr))
elif arg.startswith('--cfg'):
cfg.append(arg[len('--cfg'):])
crate = RustCrate(
len(self.rust_crates),
name,
main_rust_file,
edition,
deps,
cfg,
is_workspace_member=not from_subproject,
is_proc_macro=proc_macro_dylib_path is not None,
proc_macro_dylib_path=proc_macro_dylib_path,
)
self.rust_crates[name] = crate
def _get_rust_dependency_name(self, target: build.BuildTarget, dependency: LibTypes) -> str:
# Convert crate names with dashes to underscores by default like
# cargo does as dashes can't be used as parts of identifiers
# in Rust
return target.rust_dependency_map.get(dependency.name, dependency.name).replace('-', '_')
def generate_rust_target(self, target: build.BuildTarget) -> None:
rustc = target.compilers['rust']
# Rust compiler takes only the main file as input and
# figures out what other files are needed via import
# statements and magic.
base_proxy = target.get_options()
args = rustc.compiler_args()
# Compiler args for compiling this target
args += compilers.get_base_compile_args(base_proxy, rustc)
self.generate_generator_list_rules(target)
# dependencies need to cause a relink, they're not just for ordering
deps = [
os.path.join(t.subdir, t.get_filename())
for t in itertools.chain(target.link_targets, target.link_whole_targets)
]
# Dependencies for rust-project.json
project_deps: T.List[RustDep] = []
orderdeps: T.List[str] = []
main_rust_file = None
if target.structured_sources:
if target.structured_sources.needs_copy():
_ods, main_rust_file = self.__generate_sources_structure(Path(
self.get_target_private_dir(target)) / 'structured', target.structured_sources)
orderdeps.extend(_ods)
else:
# The only way to get here is to have only files in the "root"
# positional argument, which are all generated into the same
# directory
g = target.structured_sources.first_file()
if isinstance(g, File):
main_rust_file = g.rel_to_builddir(self.build_to_src)
elif isinstance(g, GeneratedList):
main_rust_file = os.path.join(self.get_target_private_dir(target), g.get_outputs()[0])
else:
main_rust_file = os.path.join(g.get_subdir(), g.get_outputs()[0])
for f in target.structured_sources.as_list():
if isinstance(f, File):
orderdeps.append(f.rel_to_builddir(self.build_to_src))
else:
orderdeps.extend([os.path.join(self.build_to_src, f.subdir, s)
for s in f.get_outputs()])
for i in target.get_sources():
if not rustc.can_compile(i):
raise InvalidArguments(f'Rust target {target.get_basename()} contains a non-rust source file.')
if main_rust_file is None:
main_rust_file = i.rel_to_builddir(self.build_to_src)
for g in target.get_generated_sources():
for i in g.get_outputs():
if not rustc.can_compile(i):
raise InvalidArguments(f'Rust target {target.get_basename()} contains a non-rust source file.')
if isinstance(g, GeneratedList):
fname = os.path.join(self.get_target_private_dir(target), i)
else:
fname = os.path.join(g.get_subdir(), i)
if main_rust_file is None:
main_rust_file = fname
orderdeps.append(fname)
if main_rust_file is None:
raise RuntimeError('A Rust target has no Rust sources. This is weird. Also a bug. Please report')
target_name = os.path.join(target.subdir, target.get_filename())
if isinstance(target, build.Executable):
cratetype = 'bin'
elif hasattr(target, 'rust_crate_type'):
cratetype = target.rust_crate_type
elif isinstance(target, build.SharedLibrary):
cratetype = 'dylib'
elif isinstance(target, build.StaticLibrary):
cratetype = 'rlib'
else:
raise InvalidArguments('Unknown target type for rustc.')
args.extend(['--crate-type', cratetype])
# If we're dynamically linking, add those arguments
#
# Rust is super annoying, calling -C link-arg foo does not work, it has
# to be -C link-arg=foo
if cratetype in {'bin', 'dylib'}:
args.extend(rustc.get_linker_always_args())
args += self.generate_basic_compiler_args(target, rustc, False)
# Rustc replaces - with _. spaces or dots are not allowed, so we replace them with underscores
args += ['--crate-name', target.name.replace('-', '_').replace(' ', '_').replace('.', '_')]
depfile = os.path.join(target.subdir, target.name + '.d')
args += ['--emit', f'dep-info={depfile}', '--emit', 'link']
args += target.get_extra_args('rust')
output = rustc.get_output_args(os.path.join(target.subdir, target.get_filename()))
args += output
linkdirs = mesonlib.OrderedSet()
external_deps = target.external_deps.copy()
# Have we already injected msvc-crt args?
#
# If we don't have A C, C++, or Fortran compiler that is
# VisualStudioLike treat this as if we've already injected them
#
# We handle this here rather than in the rust compiler because in
# general we don't want to link rust targets to a non-default crt.
# However, because of the way that MSCRTs work you can only link to one
# per target, so if A links to the debug one, and B links to the normal
# one you can't link A and B. Rust is hardcoded to the default one,
# so if we compile C/C++ code and link against a non-default MSCRT then
# linking will fail. We can work around this by injecting MSCRT link
# arguments early in the rustc command line
# https://github.com/rust-lang/rust/issues/39016
crt_args_injected = not any(x is not None and x.get_argument_syntax() == 'msvc' for x in
(self.environment.coredata.compilers[target.for_machine].get(l)
for l in ['c', 'cpp', 'fortran']))
crt_link_args: T.List[str] = []
try:
buildtype = target.get_option(OptionKey('buildtype'))
crt = target.get_option(OptionKey('b_vscrt'))
is_debug = buildtype == 'debug'
if crt == 'from_buildtype':
crt = 'mdd' if is_debug else 'md'
elif crt == 'static_from_buildtype':
crt = 'mtd' if is_debug else 'mt'
if crt == 'mdd':
crt_link_args = ['-l', 'static=msvcrtd']
elif crt == 'md':
# this is the default, no need to inject anything
crt_args_injected = True
elif crt == 'mtd':
crt_link_args = ['-l', 'static=libcmtd']
elif crt == 'mt':
crt_link_args = ['-l', 'static=libcmt']
except KeyError:
crt_args_injected = True
# TODO: we likely need to use verbatim to handle name_prefix and name_suffix
for d in target.link_targets:
linkdirs.add(d.subdir)
# staticlib and cdylib provide a plain C ABI, i.e. contain no Rust
# metadata. As such they should be treated like any other external
# link target
if d.uses_rust() and d.rust_crate_type not in ['staticlib', 'cdylib']:
# specify `extern CRATE_NAME=OUTPUT_FILE` for each Rust
# dependency, so that collisions with libraries in rustc's
# sysroot don't cause ambiguity
d_name = self._get_rust_dependency_name(target, d)
args += ['--extern', '{}={}'.format(d_name, os.path.join(d.subdir, d.filename))]
project_deps.append(RustDep(d_name, self.rust_crates[d.name].order))
continue
if not crt_args_injected and not {'c', 'cpp', 'fortran'}.isdisjoint(d.compilers):
args += crt_link_args
crt_args_injected = True
if isinstance(d, build.StaticLibrary):
# Rustc doesn't follow Meson's convention that static libraries
# are called .a, and import libraries are .lib, so we have to
# manually handle that.
if rustc.linker.id in {'link', 'lld-link'}:
args += ['-C', f'link-arg={self.get_target_filename_for_linking(d)}']
else:
args += ['-l', f'static={d.name}']
external_deps.extend(d.external_deps)
else:
# Rust uses -l for non rust dependencies, but we still need to
# add dylib=foo
args += ['-l', f'dylib={d.name}']
# Since 1.61.0 Rust has a special modifier for whole-archive linking,
# before that it would treat linking two static libraries as
# whole-archive linking. However, to make this work we have to disable
# bundling, which can't be done until 1.63.0… So for 1.61–1.62 we just
# have to hope that the default cases of +whole-archive are sufficient.
# See: https://github.com/rust-lang/rust/issues/99429
if mesonlib.version_compare(rustc.version, '>= 1.63.0'):
whole_archive = ':+whole-archive,-bundle'
else:
whole_archive = ''
if mesonlib.version_compare(rustc.version, '>= 1.67.0'):
verbatim = ',+verbatim'
else:
verbatim = ''
for d in target.link_whole_targets:
linkdirs.add(d.subdir)
if d.uses_rust():
# specify `extern CRATE_NAME=OUTPUT_FILE` for each Rust
# dependency, so that collisions with libraries in rustc's
# sysroot don't cause ambiguity
d_name = self._get_rust_dependency_name(target, d)
args += ['--extern', '{}={}'.format(d_name, os.path.join(d.subdir, d.filename))]
project_deps.append(RustDep(d_name, self.rust_crates[d.name].order))
else:
if not crt_args_injected and not {'c', 'cpp', 'fortran'}.isdisjoint(d.compilers):
crt_args_injected = True
crt_args_injected = True
if rustc.linker.id in {'link', 'lld-link'}:
if verbatim:
# If we can use the verbatim modifier, then everything is great
args += ['-l', f'static{whole_archive}{verbatim}={d.get_outputs()[0]}']
elif isinstance(target, build.StaticLibrary):
# If we don't, for static libraries the only option is
# to make a copy, since we can't pass objects in, or
# directly affect the archiver. but we're not going to
# do that given how quickly rustc versions go out of
# support unless there's a compelling reason to do so.
# This only affects 1.61–1.66
mlog.warning('Due to limitations in Rustc versions 1.61–1.66 and meson library naming',
'whole-archive linking with MSVC may or may not work. Upgrade rustc to',
'>= 1.67. A best effort is being made, but likely won\'t work')
args += ['-l', f'static={d.name}']
else:
# When doing dynamic linking (binaries and [c]dylibs),
# we can instead just proxy the correct arguments to the linker
for link_whole_arg in rustc.linker.get_link_whole_for([self.get_target_filename_for_linking(d)]):
args += ['-C', f'link-arg={link_whole_arg}']
else:
args += ['-l', f'static{whole_archive}={d.name}']
external_deps.extend(d.external_deps)
for e in external_deps:
for a in e.get_link_args():
if a in rustc.native_static_libs:
# Exclude link args that rustc already add by default
continue
if a.endswith(('.dll', '.so', '.dylib')):
dir_, lib = os.path.split(a)
linkdirs.add(dir_)
lib, ext = os.path.splitext(lib)
if lib.startswith('lib'):
lib = lib[3:]
args.extend(['-l', f'dylib={lib}'])
elif a.startswith('-L'):
args.append(a)
elif a.startswith('-l'):
_type = 'static' if e.static else 'dylib'
args.extend(['-l', f'{_type}={a[2:]}'])
for d in linkdirs:
if d == '':
d = '.'
args += ['-L', d]
# Because of the way rustc links, this must come after any potential
# library need to link with their stdlibs (C++ and Fortran, for example)
args.extend(target.get_used_stdlib_args('rust'))
target_deps = target.get_dependencies()
has_shared_deps = any(isinstance(dep, build.SharedLibrary) for dep in target_deps)
has_rust_shared_deps = any(dep.uses_rust()
and dep.rust_crate_type == 'dylib'
for dep in target_deps)
if cratetype in {'dylib', 'proc-macro'} or has_rust_shared_deps:
# add prefer-dynamic if any of the Rust libraries we link
# against are dynamic or this is a dynamic library itself,
# otherwise we'll end up with multiple implementations of libstd.
args += ['-C', 'prefer-dynamic']
if isinstance(target, build.SharedLibrary) or has_shared_deps:
# build the usual rpath arguments as well...
# Set runtime-paths so we can run executables without needing to set
# LD_LIBRARY_PATH, etc in the environment. Doesn't work on Windows.
if has_path_sep(target.name):
# Target names really should not have slashes in them, but
# unfortunately we did not check for that and some downstream projects
# now have them. Once slashes are forbidden, remove this bit.
target_slashname_workaround_dir = os.path.join(os.path.dirname(target.name),
self.get_target_dir(target))
else:
target_slashname_workaround_dir = self.get_target_dir(target)
rpath_args, target.rpath_dirs_to_remove = (
rustc.build_rpath_args(self.environment,
self.environment.get_build_dir(),
target_slashname_workaround_dir,
self.determine_rpath_dirs(target),
target.build_rpath,
target.install_rpath))
# ... but then add rustc's sysroot to account for rustup
# installations
for rpath_arg in rpath_args:
args += ['-C', 'link-arg=' + rpath_arg + ':' + os.path.join(rustc.get_sysroot(), 'lib')]
proc_macro_dylib_path = None
if getattr(target, 'rust_crate_type', '') == 'proc-macro':
proc_macro_dylib_path = os.path.abspath(os.path.join(target.subdir, target.get_filename()))
self._add_rust_project_entry(target.name,
os.path.abspath(os.path.join(self.environment.build_dir, main_rust_file)),
args,
bool(target.subproject),
proc_macro_dylib_path,
project_deps)
compiler_name = self.compiler_to_rule_name(rustc)
element = NinjaBuildElement(self.all_outputs, target_name, compiler_name, main_rust_file)
if orderdeps:
element.add_orderdep(orderdeps)
if deps:
element.add_dep(deps)
element.add_item('ARGS', args)
element.add_item('targetdep', depfile)
element.add_item('cratetype', cratetype)
self.add_build(element)
if isinstance(target, build.SharedLibrary):
self.generate_shsym(target)
self.create_target_source_introspection(target, rustc, args, [main_rust_file], [])
@staticmethod
def get_rule_suffix(for_machine: MachineChoice) -> str:
return PerMachine('_FOR_BUILD', '')[for_machine]
@classmethod
def get_compiler_rule_name(cls, lang: str, for_machine: MachineChoice, mode: str = 'COMPILER') -> str:
return f'{lang}_{mode}{cls.get_rule_suffix(for_machine)}'
@classmethod
def compiler_to_rule_name(cls, compiler: Compiler) -> str:
return cls.get_compiler_rule_name(compiler.get_language(), compiler.for_machine, compiler.mode)
@classmethod
def compiler_to_pch_rule_name(cls, compiler: Compiler) -> str:
return cls.get_compiler_rule_name(compiler.get_language(), compiler.for_machine, 'PCH')
def swift_module_file_name(self, target):
return os.path.join(self.get_target_private_dir(target),
self.target_swift_modulename(target) + '.swiftmodule')
def target_swift_modulename(self, target):
return target.name
def determine_swift_dep_modules(self, target):
result = []
for l in target.link_targets:
if self.is_swift_target(l):
result.append(self.swift_module_file_name(l))
return result
def get_swift_link_deps(self, target):
result = []
for l in target.link_targets:
result.append(self.get_target_filename(l))
return result
def split_swift_generated_sources(self, target):
all_srcs = self.get_target_generated_sources(target)
srcs = []
others = []
for i in all_srcs:
if i.endswith('.swift'):
srcs.append(i)
else:
others.append(i)
return srcs, others
def generate_swift_target(self, target):
module_name = self.target_swift_modulename(target)
swiftc = target.compilers['swift']
abssrc = []
relsrc = []
abs_headers = []
header_imports = []
for i in target.get_sources():
if swiftc.can_compile(i):
rels = i.rel_to_builddir(self.build_to_src)
abss = os.path.normpath(os.path.join(self.environment.get_build_dir(), rels))
relsrc.append(rels)
abssrc.append(abss)
elif self.environment.is_header(i):
relh = i.rel_to_builddir(self.build_to_src)
absh = os.path.normpath(os.path.join(self.environment.get_build_dir(), relh))
abs_headers.append(absh)
header_imports += swiftc.get_header_import_args(absh)
else:
raise InvalidArguments(f'Swift target {target.get_basename()} contains a non-swift source file.')
os.makedirs(self.get_target_private_dir_abs(target), exist_ok=True)
compile_args = swiftc.get_compile_only_args()
compile_args += swiftc.get_optimization_args(target.get_option(OptionKey('optimization')))
compile_args += swiftc.get_debug_args(target.get_option(OptionKey('debug')))
compile_args += swiftc.get_module_args(module_name)
compile_args += self.build.get_project_args(swiftc, target.subproject, target.for_machine)
compile_args += self.build.get_global_args(swiftc, target.for_machine)
for i in reversed(target.get_include_dirs()):
basedir = i.get_curdir()
for d in i.get_incdirs():
if d not in ('', '.'):
expdir = os.path.join(basedir, d)
else:
expdir = basedir
srctreedir = os.path.normpath(os.path.join(self.environment.get_build_dir(), self.build_to_src, expdir))
sargs = swiftc.get_include_args(srctreedir, False)
compile_args += sargs
link_args = swiftc.get_output_args(os.path.join(self.environment.get_build_dir(), self.get_target_filename(target)))
link_args += self.build.get_project_link_args(swiftc, target.subproject, target.for_machine)
link_args += self.build.get_global_link_args(swiftc, target.for_machine)
rundir = self.get_target_private_dir(target)
out_module_name = self.swift_module_file_name(target)
in_module_files = self.determine_swift_dep_modules(target)
abs_module_dirs = self.determine_swift_dep_dirs(target)
module_includes = []
for x in abs_module_dirs:
module_includes += swiftc.get_include_args(x, False)
link_deps = self.get_swift_link_deps(target)
abs_link_deps = [os.path.join(self.environment.get_build_dir(), x) for x in link_deps]
for d in target.link_targets:
reldir = self.get_target_dir(d)
if reldir == '':
reldir = '.'
link_args += ['-L', os.path.normpath(os.path.join(self.environment.get_build_dir(), reldir))]
(rel_generated, _) = self.split_swift_generated_sources(target)
abs_generated = [os.path.join(self.environment.get_build_dir(), x) for x in rel_generated]
# We need absolute paths because swiftc needs to be invoked in a subdir
# and this is the easiest way about it.
objects = [] # Relative to swift invocation dir
rel_objects = [] # Relative to build.ninja
for i in abssrc + abs_generated:
base = os.path.basename(i)
oname = os.path.splitext(base)[0] + '.o'
objects.append(oname)
rel_objects.append(os.path.join(self.get_target_private_dir(target), oname))
rulename = self.compiler_to_rule_name(swiftc)
# Swiftc does not seem to be able to emit objects and module files in one go.
elem = NinjaBuildElement(self.all_outputs, rel_objects, rulename, abssrc)
elem.add_dep(in_module_files + rel_generated)
elem.add_dep(abs_headers)
elem.add_item('ARGS', compile_args + header_imports + abs_generated + module_includes)
elem.add_item('RUNDIR', rundir)
self.add_build(elem)
elem = NinjaBuildElement(self.all_outputs, out_module_name, rulename, abssrc)
elem.add_dep(in_module_files + rel_generated)
elem.add_item('ARGS', compile_args + abs_generated + module_includes + swiftc.get_mod_gen_args())
elem.add_item('RUNDIR', rundir)
self.add_build(elem)
if isinstance(target, build.StaticLibrary):
elem = self.generate_link(target, self.get_target_filename(target),
rel_objects, self.build.static_linker[target.for_machine])
self.add_build(elem)
elif isinstance(target, build.Executable):
elem = NinjaBuildElement(self.all_outputs, self.get_target_filename(target), rulename, [])
elem.add_dep(rel_objects)
elem.add_dep(link_deps)
elem.add_item('ARGS', link_args + swiftc.get_std_exe_link_args() + objects + abs_link_deps)
elem.add_item('RUNDIR', rundir)
self.add_build(elem)
else:
raise MesonException('Swift supports only executable and static library targets.')
# Introspection information
self.create_target_source_introspection(target, swiftc, compile_args + header_imports + module_includes, relsrc, rel_generated)
def _rsp_options(self, tool: T.Union['Compiler', 'StaticLinker', 'DynamicLinker']) -> T.Dict[str, T.Union[bool, RSPFileSyntax]]:
"""Helper method to get rsp options.
rsp_file_syntax() is only guaranteed to be implemented if
can_linker_accept_rsp() returns True.
"""
options = {'rspable': tool.can_linker_accept_rsp()}
if options['rspable']:
options['rspfile_quote_style'] = tool.rsp_file_syntax()
return options
def generate_static_link_rules(self):
num_pools = self.environment.coredata.options[OptionKey('backend_max_links')].value
if 'java' in self.environment.coredata.compilers.host:
self.generate_java_link()
for for_machine in MachineChoice:
static_linker = self.build.static_linker[for_machine]
if static_linker is None:
continue
rule = 'STATIC_LINKER{}'.format(self.get_rule_suffix(for_machine))
cmdlist = []
args = ['$in']
# FIXME: Must normalize file names with pathlib.Path before writing
# them out to fix this properly on Windows. See:
# https://github.com/mesonbuild/meson/issues/1517
# https://github.com/mesonbuild/meson/issues/1526
if isinstance(static_linker, ArLikeLinker) and not mesonlib.is_windows():
# `ar` has no options to overwrite archives. It always appends,
# which is never what we want. Delete an existing library first if
# it exists. https://github.com/mesonbuild/meson/issues/1355
cmdlist = execute_wrapper + [c.format('$out') for c in rmfile_prefix]
cmdlist += static_linker.get_exelist()
cmdlist += ['$LINK_ARGS']
cmdlist += NinjaCommandArg.list(static_linker.get_output_args('$out'), Quoting.none)
description = 'Linking static target $out'
if num_pools > 0:
pool = 'pool = link_pool'
else:
pool = None
options = self._rsp_options(static_linker)
self.add_rule(NinjaRule(rule, cmdlist, args, description, **options, extra=pool))
def generate_dynamic_link_rules(self):
num_pools = self.environment.coredata.options[OptionKey('backend_max_links')].value
for for_machine in MachineChoice:
complist = self.environment.coredata.compilers[for_machine]
for langname, compiler in complist.items():
if langname in {'java', 'vala', 'rust', 'cs', 'cython'}:
continue
rule = '{}_LINKER{}'.format(langname, self.get_rule_suffix(for_machine))
command = compiler.get_linker_exelist()
args = ['$ARGS'] + NinjaCommandArg.list(compiler.get_linker_output_args('$out'), Quoting.none) + ['$in', '$LINK_ARGS']
description = 'Linking target $out'
if num_pools > 0:
pool = 'pool = link_pool'
else:
pool = None
options = self._rsp_options(compiler)
self.add_rule(NinjaRule(rule, command, args, description, **options, extra=pool))
if self.environment.machines[for_machine].is_aix():
rule = 'AIX_LINKER{}'.format(self.get_rule_suffix(for_machine))
description = 'Archiving AIX shared library'
cmdlist = compiler.get_command_to_archive_shlib()
args = []
options = {}
self.add_rule(NinjaRule(rule, cmdlist, args, description, **options, extra=None))
args = self.environment.get_build_command() + \
['--internal',
'symbolextractor',
self.environment.get_build_dir(),
'$in',
'$IMPLIB',
'$out']
symrule = 'SHSYM'
symcmd = args + ['$CROSS']
syndesc = 'Generating symbol file $out'
synstat = 'restat = 1'
self.add_rule(NinjaRule(symrule, symcmd, [], syndesc, extra=synstat))
def generate_java_compile_rule(self, compiler):
rule = self.compiler_to_rule_name(compiler)
command = compiler.get_exelist() + ['$ARGS', '$in']
description = 'Compiling Java object $in'
self.add_rule(NinjaRule(rule, command, [], description))
def generate_cs_compile_rule(self, compiler: 'CsCompiler') -> None:
rule = self.compiler_to_rule_name(compiler)
command = compiler.get_exelist()
args = ['$ARGS', '$in']
description = 'Compiling C Sharp target $out'
self.add_rule(NinjaRule(rule, command, args, description,
rspable=mesonlib.is_windows(),
rspfile_quote_style=compiler.rsp_file_syntax()))
def generate_vala_compile_rules(self, compiler):
rule = self.compiler_to_rule_name(compiler)
command = compiler.get_exelist() + ['$ARGS', '$in']
description = 'Compiling Vala source $in'
self.add_rule(NinjaRule(rule, command, [], description, extra='restat = 1'))
def generate_cython_compile_rules(self, compiler: 'Compiler') -> None:
rule = self.compiler_to_rule_name(compiler)
description = 'Compiling Cython source $in'
command = compiler.get_exelist()
depargs = compiler.get_dependency_gen_args('$out', '$DEPFILE')
depfile = '$out.dep' if depargs else None
args = depargs + ['$ARGS', '$in']
args += NinjaCommandArg.list(compiler.get_output_args('$out'), Quoting.none)
self.add_rule(NinjaRule(rule, command + args, [],
description,
depfile=depfile,
extra='restat = 1'))
def generate_rust_compile_rules(self, compiler):
rule = self.compiler_to_rule_name(compiler)
command = compiler.get_exelist() + ['$ARGS', '$in']
description = 'Compiling Rust source $in'
depfile = '$targetdep'
depstyle = 'gcc'
self.add_rule(NinjaRule(rule, command, [], description, deps=depstyle,
depfile=depfile))
def generate_swift_compile_rules(self, compiler):
rule = self.compiler_to_rule_name(compiler)
full_exe = self.environment.get_build_command() + [
'--internal',
'dirchanger',
'$RUNDIR',
]
invoc = full_exe + compiler.get_exelist()
command = invoc + ['$ARGS', '$in']
description = 'Compiling Swift source $in'
self.add_rule(NinjaRule(rule, command, [], description))
def use_dyndeps_for_fortran(self) -> bool:
'''Use the new Ninja feature for scanning dependencies during build,
rather than up front. Remove this and all old scanning code once Ninja
minimum version is bumped to 1.10.'''
return mesonlib.version_compare(self.ninja_version, '>=1.10.0')
def generate_fortran_dep_hack(self, crstr: str) -> None:
if self.use_dyndeps_for_fortran():
return
rule = f'FORTRAN_DEP_HACK{crstr}'
if mesonlib.is_windows():
cmd = ['cmd', '/C']
else:
cmd = ['true']
self.add_rule_comment(NinjaComment('''Workaround for these issues:
https://groups.google.com/forum/#!topic/ninja-build/j-2RfBIOd_8
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47485'''))
self.add_rule(NinjaRule(rule, cmd, [], 'Dep hack', extra='restat = 1'))
def generate_llvm_ir_compile_rule(self, compiler):
if self.created_llvm_ir_rule[compiler.for_machine]:
return
rule = self.get_compiler_rule_name('llvm_ir', compiler.for_machine)
command = compiler.get_exelist()
args = ['$ARGS'] + NinjaCommandArg.list(compiler.get_output_args('$out'), Quoting.none) + compiler.get_compile_only_args() + ['$in']
description = 'Compiling LLVM IR object $in'
options = self._rsp_options(compiler)
self.add_rule(NinjaRule(rule, command, args, description, **options))
self.created_llvm_ir_rule[compiler.for_machine] = True
def generate_compile_rule_for(self, langname, compiler):
if langname == 'java':
self.generate_java_compile_rule(compiler)
return
if langname == 'cs':
if self.environment.machines.matches_build_machine(compiler.for_machine):
self.generate_cs_compile_rule(compiler)
return
if langname == 'vala':
self.generate_vala_compile_rules(compiler)
return
if langname == 'rust':
self.generate_rust_compile_rules(compiler)
return
if langname == 'swift':
if self.environment.machines.matches_build_machine(compiler.for_machine):
self.generate_swift_compile_rules(compiler)
return
if langname == 'cython':
self.generate_cython_compile_rules(compiler)
return
crstr = self.get_rule_suffix(compiler.for_machine)
options = self._rsp_options(compiler)
if langname == 'fortran':
self.generate_fortran_dep_hack(crstr)
# gfortran does not update the modification time of *.mod files, therefore restat is needed.
# See also: https://github.com/ninja-build/ninja/pull/2275
options['extra'] = 'restat = 1'
rule = self.compiler_to_rule_name(compiler)
depargs = NinjaCommandArg.list(compiler.get_dependency_gen_args('$out', '$DEPFILE'), Quoting.none)
command = compiler.get_exelist()
args = ['$ARGS'] + depargs + NinjaCommandArg.list(compiler.get_output_args('$out'), Quoting.none) + compiler.get_compile_only_args() + ['$in']
description = f'Compiling {compiler.get_display_language()} object $out'
if compiler.get_argument_syntax() == 'msvc':
deps = 'msvc'
depfile = None
else:
deps = 'gcc'
depfile = '$DEPFILE'
self.add_rule(NinjaRule(rule, command, args, description, **options,
deps=deps, depfile=depfile))
def generate_pch_rule_for(self, langname, compiler):
if langname not in {'c', 'cpp'}:
return
rule = self.compiler_to_pch_rule_name(compiler)
depargs = compiler.get_dependency_gen_args('$out', '$DEPFILE')
if compiler.get_argument_syntax() == 'msvc':
output = []
else:
output = NinjaCommandArg.list(compiler.get_output_args('$out'), Quoting.none)
if 'mwcc' in compiler.id:
output[0].s = '-precompile'
command = compiler.get_exelist() + ['$ARGS'] + depargs + output + ['$in'] # '-c' must be removed
else:
command = compiler.get_exelist() + ['$ARGS'] + depargs + output + compiler.get_compile_only_args() + ['$in']
description = 'Precompiling header $in'
if compiler.get_argument_syntax() == 'msvc':
deps = 'msvc'
depfile = None
else:
deps = 'gcc'
depfile = '$DEPFILE'
self.add_rule(NinjaRule(rule, command, [], description, deps=deps,
depfile=depfile))
def generate_scanner_rules(self):
rulename = 'depscan'
if rulename in self.ruledict:
# Scanning command is the same for native and cross compilation.
return
command = self.environment.get_build_command() + \
['--internal', 'depscan']
args = ['$picklefile', '$out', '$in']
description = 'Module scanner.'
rule = NinjaRule(rulename, command, args, description)
self.add_rule(rule)
def generate_compile_rules(self):
for for_machine in MachineChoice:
clist = self.environment.coredata.compilers[for_machine]
for langname, compiler in clist.items():
if compiler.get_id() == 'clang':
self.generate_llvm_ir_compile_rule(compiler)
self.generate_compile_rule_for(langname, compiler)
self.generate_pch_rule_for(langname, compiler)
for mode in compiler.get_modes():
self.generate_compile_rule_for(langname, mode)
def generate_generator_list_rules(self, target):
# CustomTargets have already written their rules and
# CustomTargetIndexes don't actually get generated, so write rules for
# GeneratedLists here
for genlist in target.get_generated_sources():
if isinstance(genlist, (build.CustomTarget, build.CustomTargetIndex)):
continue
self.generate_genlist_for_target(genlist, target)
def replace_paths(self, target, args, override_subdir=None):
if override_subdir:
source_target_dir = os.path.join(self.build_to_src, override_subdir)
else:
source_target_dir = self.get_target_source_dir(target)
relout = self.get_target_private_dir(target)
args = [x.replace("@SOURCE_DIR@", self.build_to_src).replace("@BUILD_DIR@", relout)
for x in args]
args = [x.replace("@CURRENT_SOURCE_DIR@", source_target_dir) for x in args]
args = [x.replace("@SOURCE_ROOT@", self.build_to_src).replace("@BUILD_ROOT@", '.')
for x in args]
args = [x.replace('\\', '/') for x in args]
return args
def generate_genlist_for_target(self, genlist: build.GeneratedList, target: build.BuildTarget) -> None:
for x in genlist.depends:
if isinstance(x, build.GeneratedList):
self.generate_genlist_for_target(x, target)
generator = genlist.get_generator()
subdir = genlist.subdir
exe = generator.get_exe()
infilelist = genlist.get_inputs()
outfilelist = genlist.get_outputs()
extra_dependencies = self.get_custom_target_depend_files(genlist)
for i, curfile in enumerate(infilelist):
if len(generator.outputs) == 1:
sole_output = os.path.join(self.get_target_private_dir(target), outfilelist[i])
else:
sole_output = f'{curfile}'
infilename = curfile.rel_to_builddir(self.build_to_src, self.get_target_private_dir(target))
base_args = generator.get_arglist(infilename)
outfiles = genlist.get_outputs_for(curfile)
outfiles = [os.path.join(self.get_target_private_dir(target), of) for of in outfiles]
if generator.depfile is None:
rulename = 'CUSTOM_COMMAND'
args = base_args
else:
rulename = 'CUSTOM_COMMAND_DEP'
depfilename = generator.get_dep_outname(infilename)
depfile = os.path.join(self.get_target_private_dir(target), depfilename)
args = [x.replace('@DEPFILE@', depfile) for x in base_args]
args = [x.replace("@INPUT@", infilename).replace('@OUTPUT@', sole_output)
for x in args]
args = self.replace_outputs(args, self.get_target_private_dir(target), outfilelist)
# We have consumed output files, so drop them from the list of remaining outputs.
if len(generator.outputs) > 1:
outfilelist = outfilelist[len(generator.outputs):]
args = self.replace_paths(target, args, override_subdir=subdir)
cmdlist, reason = self.as_meson_exe_cmdline(exe,
self.replace_extra_args(args, genlist),
capture=outfiles[0] if generator.capture else None)
abs_pdir = os.path.join(self.environment.get_build_dir(), self.get_target_dir(target))
os.makedirs(abs_pdir, exist_ok=True)
elem = NinjaBuildElement(self.all_outputs, outfiles, rulename, infilename)
elem.add_dep([self.get_target_filename(x) for x in generator.depends])
if generator.depfile is not None:
elem.add_item('DEPFILE', depfile)
if len(extra_dependencies) > 0:
elem.add_dep(extra_dependencies)
if len(generator.outputs) == 1:
what = f'{sole_output!r}'
else:
# since there are multiple outputs, we log the source that caused the rebuild
what = f'from {sole_output!r}'
if reason:
reason = f' (wrapped by meson {reason})'
elem.add_item('DESC', f'Generating {what}{reason}')
if isinstance(exe, build.BuildTarget):
elem.add_dep(self.get_target_filename(exe))
elem.add_item('COMMAND', cmdlist)
self.add_build(elem)
def scan_fortran_module_outputs(self, target):
"""
Find all module and submodule made available in a Fortran code file.
"""
if self.use_dyndeps_for_fortran():
return
compiler = None
# TODO other compilers
for lang, c in self.environment.coredata.compilers.host.items():
if lang == 'fortran':
compiler = c
break
if compiler is None:
self.fortran_deps[target.get_basename()] = {}
return
modre = re.compile(FORTRAN_MODULE_PAT, re.IGNORECASE)
submodre = re.compile(FORTRAN_SUBMOD_PAT, re.IGNORECASE)
module_files = {}
submodule_files = {}
for s in target.get_sources():
# FIXME, does not work for Fortran sources generated by
# custom_target() and generator() as those are run after
# the configuration (configure_file() is OK)
if not compiler.can_compile(s):
continue
filename = s.absolute_path(self.environment.get_source_dir(),
self.environment.get_build_dir())
# Fortran keywords must be ASCII.
with open(filename, encoding='ascii', errors='ignore') as f:
for line in f:
modmatch = modre.match(line)
if modmatch is not None:
modname = modmatch.group(1).lower()
if modname in module_files:
raise InvalidArguments(
f'Namespace collision: module {modname} defined in '
f'two files {module_files[modname]} and {s}.')
module_files[modname] = s
else:
submodmatch = submodre.match(line)
if submodmatch is not None:
# '_' is arbitrarily used to distinguish submod from mod.
parents = submodmatch.group(1).lower().split(':')
submodname = parents[0] + '_' + submodmatch.group(2).lower()
if submodname in submodule_files:
raise InvalidArguments(
f'Namespace collision: submodule {submodname} defined in '
f'two files {submodule_files[submodname]} and {s}.')
submodule_files[submodname] = s
self.fortran_deps[target.get_basename()] = {**module_files, **submodule_files}
def get_fortran_deps(self, compiler: FortranCompiler, src: Path, target) -> T.List[str]:
"""
Find all module and submodule needed by a Fortran target
"""
if self.use_dyndeps_for_fortran():
return []
dirname = Path(self.get_target_private_dir(target))
tdeps = self.fortran_deps[target.get_basename()]
srcdir = Path(self.source_dir)
mod_files = _scan_fortran_file_deps(src, srcdir, dirname, tdeps, compiler)
return mod_files
def get_no_stdlib_link_args(self, target, linker):
if hasattr(linker, 'language') and linker.language in self.build.stdlibs[target.for_machine]:
return linker.get_no_stdlib_link_args()
return []
def get_compile_debugfile_args(self, compiler, target, objfile):
# The way MSVC uses PDB files is documented exactly nowhere so
# the following is what we have been able to decipher via
# reverse engineering.
#
# Each object file gets the path of its PDB file written
# inside it. This can be either the final PDB (for, say,
# foo.exe) or an object pdb (for foo.obj). If the former, then
# each compilation step locks the pdb file for writing, which
# is a bottleneck and object files from one target cannot be
# used in a different target. The latter seems to be the
# sensible one (and what Unix does) but there is a catch. If
# you try to use precompiled headers MSVC will error out
# because both source and pch pdbs go in the same file and
# they must be the same.
#
# This means:
#
# - pch files must be compiled anew for every object file (negating
# the entire point of having them in the first place)
# - when using pch, output must go to the target pdb
#
# Since both of these are broken in some way, use the one that
# works for each target. This unfortunately means that you
# can't combine pch and object extraction in a single target.
#
# PDB files also lead to filename collisions. A target foo.exe
# has a corresponding foo.pdb. A shared library foo.dll _also_
# has pdb file called foo.pdb. So will a static library
# foo.lib, which clobbers both foo.pdb _and_ the dll file's
# export library called foo.lib (by default, currently we name
# them libfoo.a to avoid this issue). You can give the files
# unique names such as foo_exe.pdb but VC also generates a
# bunch of other files which take their names from the target
# basename (i.e. "foo") and stomp on each other.
#
# CMake solves this problem by doing two things. First of all
# static libraries do not generate pdb files at
# all. Presumably you don't need them and VC is smart enough
# to look up the original data when linking (speculation, not
# tested). The second solution is that you can only have
# target named "foo" as an exe, shared lib _or_ static
# lib. This makes filename collisions not happen. The downside
# is that you can't have an executable foo that uses a shared
# library libfoo.so, which is a common idiom on Unix.
#
# If you feel that the above is completely wrong and all of
# this is actually doable, please send patches.
if target.has_pch():
tfilename = self.get_target_filename_abs(target)
return compiler.get_compile_debugfile_args(tfilename, pch=True)
else:
return compiler.get_compile_debugfile_args(objfile, pch=False)
def get_link_debugfile_name(self, linker, target, outname) -> T.Optional[str]:
return linker.get_link_debugfile_name(outname)
def get_link_debugfile_args(self, linker, target, outname):
return linker.get_link_debugfile_args(outname)
def generate_llvm_ir_compile(self, target, src):
base_proxy = target.get_options()
compiler = get_compiler_for_source(target.compilers.values(), src)
commands = compiler.compiler_args()
# Compiler args for compiling this target
commands += compilers.get_base_compile_args(base_proxy, compiler)
if isinstance(src, File):
if src.is_built:
src_filename = os.path.join(src.subdir, src.fname)
else:
src_filename = src.fname
elif os.path.isabs(src):
src_filename = os.path.basename(src)
else:
src_filename = src
obj_basename = self.canonicalize_filename(src_filename)
rel_obj = os.path.join(self.get_target_private_dir(target), obj_basename)
rel_obj += '.' + self.environment.machines[target.for_machine].get_object_suffix()
commands += self.get_compile_debugfile_args(compiler, target, rel_obj)
if isinstance(src, File) and src.is_built:
rel_src = src.fname
elif isinstance(src, File):
rel_src = src.rel_to_builddir(self.build_to_src)
else:
raise InvalidArguments(f'Invalid source type: {src!r}')
# Write the Ninja build command
compiler_name = self.get_compiler_rule_name('llvm_ir', compiler.for_machine)
element = NinjaBuildElement(self.all_outputs, rel_obj, compiler_name, rel_src)
element.add_item('ARGS', commands)
self.add_build(element)
return (rel_obj, rel_src)
@lru_cache(maxsize=None)
def generate_inc_dir(self, compiler: 'Compiler', d: str, basedir: str, is_system: bool) -> \
T.Tuple['ImmutableListProtocol[str]', 'ImmutableListProtocol[str]']:
# Avoid superfluous '/.' at the end of paths when d is '.'
if d not in ('', '.'):
expdir = os.path.normpath(os.path.join(basedir, d))
else:
expdir = basedir
srctreedir = os.path.normpath(os.path.join(self.build_to_src, expdir))
sargs = compiler.get_include_args(srctreedir, is_system)
# There may be include dirs where a build directory has not been
# created for some source dir. For example if someone does this:
#
# inc = include_directories('foo/bar/baz')
#
# But never subdir()s into the actual dir.
if os.path.isdir(os.path.join(self.environment.get_build_dir(), expdir)):
bargs = compiler.get_include_args(expdir, is_system)
else:
bargs = []
return (sargs, bargs)
def _generate_single_compile(self, target: build.BuildTarget, compiler: 'Compiler',
is_generated: bool = False) -> 'CompilerArgs':
commands = self._generate_single_compile_base_args(target, compiler)
commands += self._generate_single_compile_target_args(target, compiler, is_generated)
return commands
def _generate_single_compile_base_args(self, target: build.BuildTarget, compiler: 'Compiler') -> 'CompilerArgs':
base_proxy = target.get_options()
# Create an empty commands list, and start adding arguments from
# various sources in the order in which they must override each other
commands = compiler.compiler_args()
# Start with symbol visibility.
commands += compiler.gnu_symbol_visibility_args(target.gnu_symbol_visibility)
# Add compiler args for compiling this target derived from 'base' build
# options passed on the command-line, in default_options, etc.
# These have the lowest priority.
commands += compilers.get_base_compile_args(base_proxy,
compiler)
return commands
@lru_cache(maxsize=None)
def _generate_single_compile_target_args(self, target: build.BuildTarget, compiler: 'Compiler',
is_generated: bool = False) -> 'ImmutableListProtocol[str]':
# The code generated by valac is usually crap and has tons of unused
# variables and such, so disable warnings for Vala C sources.
no_warn_args = is_generated == 'vala'
# Add compiler args and include paths from several sources; defaults,
# build options, external dependencies, etc.
commands = self.generate_basic_compiler_args(target, compiler, no_warn_args)
# Add custom target dirs as includes automatically, but before
# target-specific include directories.
if target.implicit_include_directories:
commands += self.get_custom_target_dir_include_args(target, compiler)
# Add include dirs from the `include_directories:` kwarg on the target
# and from `include_directories:` of internal deps of the target.
#
# Target include dirs should override internal deps include dirs.
# This is handled in BuildTarget.process_kwargs()
#
# Include dirs from internal deps should override include dirs from
# external deps and must maintain the order in which they are specified.
# Hence, we must reverse the list so that the order is preserved.
for i in reversed(target.get_include_dirs()):
basedir = i.get_curdir()
# We should iterate include dirs in reversed orders because
# -Ipath will add to begin of array. And without reverse
# flags will be added in reversed order.
for d in reversed(i.get_incdirs()):
# Add source subdir first so that the build subdir overrides it
(compile_obj, includeargs) = self.generate_inc_dir(compiler, d, basedir, i.is_system)
commands += compile_obj
commands += includeargs
for d in i.get_extra_build_dirs():
commands += compiler.get_include_args(d, i.is_system)
# Add per-target compile args, f.ex, `c_args : ['-DFOO']`. We set these
# near the end since these are supposed to override everything else.
commands += self.escape_extra_args(target.get_extra_args(compiler.get_language()))
# D specific additional flags
if compiler.language == 'd':
commands += compiler.get_feature_args(target.d_features, self.build_to_src)
# Add source dir and build dir. Project-specific and target-specific
# include paths must override per-target compile args, include paths
# from external dependencies, internal dependencies, and from
# per-target `include_directories:`
#
# We prefer headers in the build dir over the source dir since, for
# instance, the user might have an srcdir == builddir Autotools build
# in their source tree. Many projects that are moving to Meson have
# both Meson and Autotools in parallel as part of the transition.
if target.implicit_include_directories:
commands += self.get_source_dir_include_args(target, compiler)
if target.implicit_include_directories:
commands += self.get_build_dir_include_args(target, compiler)
# Finally add the private dir for the target to the include path. This
# must override everything else and must be the final path added.
commands += compiler.get_include_args(self.get_target_private_dir(target), False)
return commands
# Returns a dictionary, mapping from each compiler src type (e.g. 'c', 'cpp', etc.) to a list of compiler arg strings
# used for that respective src type.
# Currently used for the purpose of populating VisualStudio intellisense fields but possibly useful in other scenarios.
def generate_common_compile_args_per_src_type(self, target: build.BuildTarget) -> dict[str, list[str]]:
src_type_to_args = {}
use_pch = self.target_uses_pch(target)
for src_type_str in target.compilers.keys():
compiler = target.compilers[src_type_str]
commands = self._generate_single_compile_base_args(target, compiler)
# Include PCH header as first thing as it must be the first one or it will be
# ignored by gcc https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100462
if use_pch and 'mw' not in compiler.id:
commands += self.get_pch_include_args(compiler, target)
commands += self._generate_single_compile_target_args(target, compiler, is_generated=False)
# Metrowerks compilers require PCH include args to come after intraprocedural analysis args
if use_pch and 'mw' in compiler.id:
commands += self.get_pch_include_args(compiler, target)
commands = commands.compiler.compiler_args(commands)
src_type_to_args[src_type_str] = commands.to_native()
return src_type_to_args
def generate_single_compile(self, target: build.BuildTarget, src,
is_generated=False, header_deps=None,
order_deps: T.Optional[T.List['mesonlib.FileOrString']] = None,
extra_args: T.Optional[T.List[str]] = None,
unity_sources: T.Optional[T.List[mesonlib.FileOrString]] = None) -> None:
"""
Compiles C/C++, ObjC/ObjC++, Fortran, and D sources
"""
header_deps = header_deps if header_deps is not None else []
order_deps = order_deps if order_deps is not None else []
if isinstance(src, str) and src.endswith('.h'):
raise AssertionError(f'BUG: sources should not contain headers {src!r}')
compiler = get_compiler_for_source(target.compilers.values(), src)
commands = self._generate_single_compile_base_args(target, compiler)
# Include PCH header as first thing as it must be the first one or it will be
# ignored by gcc https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100462
use_pch = self.target_uses_pch(target) and is_generated != 'pch'
if use_pch and 'mw' not in compiler.id:
commands += self.get_pch_include_args(compiler, target)
commands += self._generate_single_compile_target_args(target, compiler, is_generated)
# Metrowerks compilers require PCH include args to come after intraprocedural analysis args
if use_pch and 'mw' in compiler.id:
commands += self.get_pch_include_args(compiler, target)
commands = commands.compiler.compiler_args(commands)
# Create introspection information
if is_generated is False:
self.create_target_source_introspection(target, compiler, commands, [src], [], unity_sources)
else:
self.create_target_source_introspection(target, compiler, commands, [], [src], unity_sources)
build_dir = self.environment.get_build_dir()
if isinstance(src, File):
rel_src = src.rel_to_builddir(self.build_to_src)
if os.path.isabs(rel_src):
# Source files may not be from the source directory if they originate in source-only libraries,
# so we can't assert that the absolute path is anywhere in particular.
if src.is_built:
assert rel_src.startswith(build_dir)
rel_src = rel_src[len(build_dir) + 1:]
elif is_generated:
raise AssertionError(f'BUG: broken generated source file handling for {src!r}')
else:
raise InvalidArguments(f'Invalid source type: {src!r}')
obj_basename = self.object_filename_from_source(target, src)
rel_obj = os.path.join(self.get_target_private_dir(target), obj_basename)
dep_file = compiler.depfile_for_object(rel_obj)
# Add MSVC debug file generation compile flags: /Fd /FS
commands += self.get_compile_debugfile_args(compiler, target, rel_obj)
# PCH handling
if self.target_uses_pch(target):
pchlist = target.get_pch(compiler.language)
else:
pchlist = []
if not pchlist:
pch_dep = []
elif compiler.id == 'intel':
pch_dep = []
else:
arr = []
i = os.path.join(self.get_target_private_dir(target), compiler.get_pch_name(pchlist[0]))
arr.append(i)
pch_dep = arr
compiler_name = self.compiler_to_rule_name(compiler)
extra_deps = []
if compiler.get_language() == 'fortran':
# Can't read source file to scan for deps if it's generated later
# at build-time. Skip scanning for deps, and just set the module
# outdir argument instead.
# https://github.com/mesonbuild/meson/issues/1348
if not is_generated:
abs_src = Path(build_dir) / rel_src
extra_deps += self.get_fortran_deps(compiler, abs_src, target)
if not self.use_dyndeps_for_fortran():
# Dependency hack. Remove once multiple outputs in Ninja is fixed:
# https://groups.google.com/forum/#!topic/ninja-build/j-2RfBIOd_8
for modname, srcfile in self.fortran_deps[target.get_basename()].items():
modfile = os.path.join(self.get_target_private_dir(target),
compiler.module_name_to_filename(modname))
if srcfile == src:
crstr = self.get_rule_suffix(target.for_machine)
depelem = NinjaBuildElement(self.all_outputs,
modfile,
'FORTRAN_DEP_HACK' + crstr,
rel_obj)
self.add_build(depelem)
commands += compiler.get_module_outdir_args(self.get_target_private_dir(target))
if extra_args is not None:
commands.extend(extra_args)
element = NinjaBuildElement(self.all_outputs, rel_obj, compiler_name, rel_src)
self.add_header_deps(target, element, header_deps)
for d in extra_deps:
element.add_dep(d)
for d in order_deps:
if isinstance(d, File):
d = d.rel_to_builddir(self.build_to_src)
elif not self.has_dir_part(d):
d = os.path.join(self.get_target_private_dir(target), d)
element.add_orderdep(d)
element.add_dep(pch_dep)
for i in self.get_fortran_orderdeps(target, compiler):
element.add_orderdep(i)
if dep_file:
element.add_item('DEPFILE', dep_file)
element.add_item('ARGS', commands)
self.add_dependency_scanner_entries_to_element(target, compiler, element, src)
self.add_build(element)
assert isinstance(rel_obj, str)
assert isinstance(rel_src, str)
return (rel_obj, rel_src.replace('\\', '/'))
def add_dependency_scanner_entries_to_element(self, target: build.BuildTarget, compiler, element, src):
if not self.should_use_dyndeps_for_target(target):
return
if isinstance(target, build.CompileTarget):
return
extension = os.path.splitext(src.fname)[1][1:]
if extension != 'C':
extension = extension.lower()
if not (extension in compilers.lang_suffixes['fortran'] or extension in compilers.lang_suffixes['cpp']):
return
dep_scan_file = self.get_dep_scan_file_for(target)
element.add_item('dyndep', dep_scan_file)
element.add_orderdep(dep_scan_file)
def get_dep_scan_file_for(self, target: build.BuildTarget) -> str:
return os.path.join(self.get_target_private_dir(target), 'depscan.dd')
def add_header_deps(self, target, ninja_element, header_deps):
for d in header_deps:
if isinstance(d, File):
d = d.rel_to_builddir(self.build_to_src)
elif not self.has_dir_part(d):
d = os.path.join(self.get_target_private_dir(target), d)
ninja_element.add_dep(d)
def has_dir_part(self, fname: mesonlib.FileOrString) -> bool:
# FIXME FIXME: The usage of this is a terrible and unreliable hack
if isinstance(fname, File):
return fname.subdir != ''
return has_path_sep(fname)
# Fortran is a bit weird (again). When you link against a library, just compiling a source file
# requires the mod files that are output when single files are built. To do this right we would need to
# scan all inputs and write out explicit deps for each file. That is stoo slow and too much effort so
# instead just have an ordered dependency on the library. This ensures all required mod files are created.
# The real deps are then detected via dep file generation from the compiler. This breaks on compilers that
# produce incorrect dep files but such is life.
def get_fortran_orderdeps(self, target, compiler):
if compiler.language != 'fortran':
return []
return [
os.path.join(self.get_target_dir(lt), lt.get_filename())
for lt in itertools.chain(target.link_targets, target.link_whole_targets)
]
def generate_msvc_pch_command(self, target, compiler, pch):
header = pch[0]
pchname = compiler.get_pch_name(header)
dst = os.path.join(self.get_target_private_dir(target), pchname)
commands = []
commands += self.generate_basic_compiler_args(target, compiler)
if len(pch) == 1:
# Auto generate PCH.
source = self.create_msvc_pch_implementation(target, compiler.get_language(), pch[0])
pch_header_dir = os.path.dirname(os.path.join(self.build_to_src, target.get_source_subdir(), header))
commands += compiler.get_include_args(pch_header_dir, False)
else:
source = os.path.join(self.build_to_src, target.get_source_subdir(), pch[1])
just_name = os.path.basename(header)
(objname, pch_args) = compiler.gen_pch_args(just_name, source, dst)
commands += pch_args
commands += self._generate_single_compile(target, compiler)
commands += self.get_compile_debugfile_args(compiler, target, objname)
dep = dst + '.' + compiler.get_depfile_suffix()
return commands, dep, dst, [objname], source
def generate_gcc_pch_command(self, target, compiler, pch):
commands = self._generate_single_compile(target, compiler)
if pch.split('.')[-1] == 'h' and compiler.language == 'cpp':
# Explicitly compile pch headers as C++. If Clang is invoked in C++ mode, it actually warns if
# this option is not set, and for gcc it also makes sense to use it.
commands += ['-x', 'c++-header']
dst = os.path.join(self.get_target_private_dir(target),
os.path.basename(pch) + '.' + compiler.get_pch_suffix())
dep = dst + '.' + compiler.get_depfile_suffix()
return commands, dep, dst, [] # Gcc does not create an object file during pch generation.
def generate_mwcc_pch_command(self, target, compiler, pch):
commands = self._generate_single_compile(target, compiler)
dst = os.path.join(self.get_target_private_dir(target),
os.path.basename(pch) + '.' + compiler.get_pch_suffix())
dep = os.path.splitext(dst)[0] + '.' + compiler.get_depfile_suffix()
return commands, dep, dst, [] # mwcc compilers do not create an object file during pch generation.
def generate_pch(self, target, header_deps=None):
header_deps = header_deps if header_deps is not None else []
pch_objects = []
for lang in ['c', 'cpp']:
pch = target.get_pch(lang)
if not pch:
continue
if not has_path_sep(pch[0]) or not has_path_sep(pch[-1]):
msg = f'Precompiled header of {target.get_basename()!r} must not be in the same ' \
'directory as source, please put it in a subdirectory.'
raise InvalidArguments(msg)
compiler: Compiler = target.compilers[lang]
if compiler.get_argument_syntax() == 'msvc':
(commands, dep, dst, objs, src) = self.generate_msvc_pch_command(target, compiler, pch)
extradep = os.path.join(self.build_to_src, target.get_source_subdir(), pch[0])
elif compiler.id == 'intel':
# Intel generates on target generation
continue
elif 'mwcc' in compiler.id:
src = os.path.join(self.build_to_src, target.get_source_subdir(), pch[0])
(commands, dep, dst, objs) = self.generate_mwcc_pch_command(target, compiler, pch[0])
extradep = None
else:
src = os.path.join(self.build_to_src, target.get_source_subdir(), pch[0])
(commands, dep, dst, objs) = self.generate_gcc_pch_command(target, compiler, pch[0])
extradep = None
pch_objects += objs
rulename = self.compiler_to_pch_rule_name(compiler)
elem = NinjaBuildElement(self.all_outputs, objs + [dst], rulename, src)
if extradep is not None:
elem.add_dep(extradep)
self.add_header_deps(target, elem, header_deps)
elem.add_item('ARGS', commands)
elem.add_item('DEPFILE', dep)
self.add_build(elem)
return pch_objects
def get_target_shsym_filename(self, target):
# Always name the .symbols file after the primary build output because it always exists
targetdir = self.get_target_private_dir(target)
return os.path.join(targetdir, target.get_filename() + '.symbols')
def generate_shsym(self, target):
target_file = self.get_target_filename(target)
symname = self.get_target_shsym_filename(target)
elem = NinjaBuildElement(self.all_outputs, symname, 'SHSYM', target_file)
# The library we will actually link to, which is an import library on Windows (not the DLL)
elem.add_item('IMPLIB', self.get_target_filename_for_linking(target))
if self.environment.is_cross_build():
elem.add_item('CROSS', '--cross-host=' + self.environment.machines[target.for_machine].system)
self.add_build(elem)
def get_import_filename(self, target):
return os.path.join(self.get_target_dir(target), target.import_filename)
def get_target_type_link_args(self, target, linker):
commands = []
if isinstance(target, build.Executable):
# Currently only used with the Swift compiler to add '-emit-executable'
commands += linker.get_std_exe_link_args()
# If export_dynamic, add the appropriate linker arguments
if target.export_dynamic:
commands += linker.gen_export_dynamic_link_args(self.environment)
# If implib, and that's significant on this platform (i.e. Windows using either GCC or Visual Studio)
if target.import_filename:
commands += linker.gen_import_library_args(self.get_import_filename(target))
if target.pie:
commands += linker.get_pie_link_args()
elif isinstance(target, build.SharedLibrary):
if isinstance(target, build.SharedModule):
commands += linker.get_std_shared_module_link_args(target.get_options())
else:
commands += linker.get_std_shared_lib_link_args()
# All shared libraries are PIC
commands += linker.get_pic_args()
if not isinstance(target, build.SharedModule) or target.force_soname:
# Add -Wl,-soname arguments on Linux, -install_name on OS X
commands += linker.get_soname_args(
self.environment, target.prefix, target.name, target.suffix,
target.soversion, target.darwin_versions)
# This is only visited when building for Windows using either GCC or Visual Studio
if target.vs_module_defs and hasattr(linker, 'gen_vs_module_defs_args'):
commands += linker.gen_vs_module_defs_args(target.vs_module_defs.rel_to_builddir(self.build_to_src))
# This is only visited when building for Windows using either GCC or Visual Studio
if target.import_filename:
commands += linker.gen_import_library_args(self.get_import_filename(target))
elif isinstance(target, build.StaticLibrary):
commands += linker.get_std_link_args(self.environment, not target.should_install())
else:
raise RuntimeError('Unknown build target type.')
return commands
def get_target_type_link_args_post_dependencies(self, target, linker):
commands = []
if isinstance(target, build.Executable):
# If gui_app is significant on this platform, add the appropriate linker arguments.
# Unfortunately this can't be done in get_target_type_link_args, because some misguided
# libraries (such as SDL2) add -mwindows to their link flags.
m = self.environment.machines[target.for_machine]
if m.is_windows() or m.is_cygwin():
if target.gui_app is not None:
commands += linker.get_gui_app_args(target.gui_app)
else:
commands += linker.get_win_subsystem_args(target.win_subsystem)
return commands
def get_link_whole_args(self, linker, target):
use_custom = False
if linker.id == 'msvc':
# Expand our object lists manually if we are on pre-Visual Studio 2015 Update 2
# (incidentally, the "linker" here actually refers to cl.exe)
if mesonlib.version_compare(linker.version, '<19.00.23918'):
use_custom = True
if use_custom:
objects_from_static_libs: T.List[ExtractedObjects] = []
for dep in target.link_whole_targets:
l = dep.extract_all_objects(False)
objects_from_static_libs += self.determine_ext_objs(l, '')
objects_from_static_libs.extend(self.flatten_object_list(dep)[0])
return objects_from_static_libs
else:
target_args = self.build_target_link_arguments(linker, target.link_whole_targets)
return linker.get_link_whole_for(target_args) if target_args else []
@lru_cache(maxsize=None)
def guess_library_absolute_path(self, linker, libname, search_dirs, patterns) -> Path:
from ..compilers.c import CCompiler
for d in search_dirs:
for p in patterns:
trial = CCompiler._get_trials_from_pattern(p, d, libname)
if not trial:
continue
trial = CCompiler._get_file_from_list(self.environment, trial)
if not trial:
continue
# Return the first result
return trial
def guess_external_link_dependencies(self, linker, target, commands, internal):
# Ideally the linker would generate dependency information that could be used.
# But that has 2 problems:
# * currently ld cannot create dependency information in a way that ninja can use:
# https://sourceware.org/bugzilla/show_bug.cgi?id=22843
# * Meson optimizes libraries from the same build using the symbol extractor.
# Just letting ninja use ld generated dependencies would undo this optimization.
search_dirs = OrderedSet()
libs = OrderedSet()
absolute_libs = []
build_dir = self.environment.get_build_dir()
# the following loop sometimes consumes two items from command in one pass
it = iter(linker.native_args_to_unix(commands))
for item in it:
if item in internal and not item.startswith('-'):
continue
if item.startswith('-L'):
if len(item) > 2:
path = item[2:]
else:
try:
path = next(it)
except StopIteration:
mlog.warning("Generated linker command has -L argument without following path")
break
if not os.path.isabs(path):
path = os.path.join(build_dir, path)
search_dirs.add(path)
elif item.startswith('-l'):
if len(item) > 2:
lib = item[2:]
else:
try:
lib = next(it)
except StopIteration:
mlog.warning("Generated linker command has '-l' argument without following library name")
break
libs.add(lib)
elif os.path.isabs(item) and self.environment.is_library(item) and os.path.isfile(item):
absolute_libs.append(item)
guessed_dependencies = []
# TODO The get_library_naming requirement currently excludes link targets that use d or fortran as their main linker
try:
static_patterns = linker.get_library_naming(self.environment, LibType.STATIC, strict=True)
shared_patterns = linker.get_library_naming(self.environment, LibType.SHARED, strict=True)
search_dirs = tuple(search_dirs) + tuple(linker.get_library_dirs(self.environment))
for libname in libs:
# be conservative and record most likely shared and static resolution, because we don't know exactly
# which one the linker will prefer
staticlibs = self.guess_library_absolute_path(linker, libname,
search_dirs, static_patterns)
sharedlibs = self.guess_library_absolute_path(linker, libname,
search_dirs, shared_patterns)
if staticlibs:
guessed_dependencies.append(staticlibs.resolve().as_posix())
if sharedlibs:
guessed_dependencies.append(sharedlibs.resolve().as_posix())
except (mesonlib.MesonException, AttributeError) as e:
if 'get_library_naming' not in str(e):
raise
return guessed_dependencies + absolute_libs
def generate_prelink(self, target, obj_list):
assert isinstance(target, build.StaticLibrary)
prelink_name = os.path.join(self.get_target_private_dir(target), target.name + '-prelink.o')
elem = NinjaBuildElement(self.all_outputs, [prelink_name], 'CUSTOM_COMMAND', obj_list)
prelinker = target.get_prelinker()
cmd = prelinker.exelist[:]
cmd += prelinker.get_prelink_args(prelink_name, obj_list)
cmd = self.replace_paths(target, cmd)
elem.add_item('COMMAND', cmd)
elem.add_item('description', f'Prelinking {prelink_name}.')
self.add_build(elem)
return [prelink_name]
def generate_link(self, target: build.BuildTarget, outname, obj_list, linker: T.Union['Compiler', 'StaticLinker'], extra_args=None, stdlib_args=None):
extra_args = extra_args if extra_args is not None else []
stdlib_args = stdlib_args if stdlib_args is not None else []
implicit_outs = []
if isinstance(target, build.StaticLibrary):
linker_base = 'STATIC'
else:
linker_base = linker.get_language() # Fixme.
if isinstance(target, build.SharedLibrary):
self.generate_shsym(target)
crstr = self.get_rule_suffix(target.for_machine)
linker_rule = linker_base + '_LINKER' + crstr
# Create an empty commands list, and start adding link arguments from
# various sources in the order in which they must override each other
# starting from hard-coded defaults followed by build options and so on.
#
# Once all the linker options have been passed, we will start passing
# libraries and library paths from internal and external sources.
commands = linker.compiler_args()
# First, the trivial ones that are impossible to override.
#
# Add linker args for linking this target derived from 'base' build
# options passed on the command-line, in default_options, etc.
# These have the lowest priority.
if isinstance(target, build.StaticLibrary):
commands += linker.get_base_link_args(target.get_options())
else:
commands += compilers.get_base_link_args(target.get_options(),
linker,
isinstance(target, build.SharedModule),
self.environment.get_build_dir())
# Add -nostdlib if needed; can't be overridden
commands += self.get_no_stdlib_link_args(target, linker)
# Add things like /NOLOGO; usually can't be overridden
commands += linker.get_linker_always_args()
# Add buildtype linker args: optimization level, etc.
commands += linker.get_buildtype_linker_args(target.get_option(OptionKey('buildtype')))
# Add /DEBUG and the pdb filename when using MSVC
if target.get_option(OptionKey('debug')):
commands += self.get_link_debugfile_args(linker, target, outname)
debugfile = self.get_link_debugfile_name(linker, target, outname)
if debugfile is not None:
implicit_outs += [debugfile]
# Add link args specific to this BuildTarget type, such as soname args,
# PIC, import library generation, etc.
commands += self.get_target_type_link_args(target, linker)
# Archives that are copied wholesale in the result. Must be before any
# other link targets so missing symbols from whole archives are found in those.
if not isinstance(target, build.StaticLibrary):
commands += self.get_link_whole_args(linker, target)
if not isinstance(target, build.StaticLibrary):
# Add link args added using add_project_link_arguments()
commands += self.build.get_project_link_args(linker, target.subproject, target.for_machine)
# Add link args added using add_global_link_arguments()
# These override per-project link arguments
commands += self.build.get_global_link_args(linker, target.for_machine)
# Link args added from the env: LDFLAGS. We want these to override
# all the defaults but not the per-target link args.
commands += self.environment.coredata.get_external_link_args(target.for_machine, linker.get_language())
# Now we will add libraries and library paths from various sources
# Set runtime-paths so we can run executables without needing to set
# LD_LIBRARY_PATH, etc in the environment. Doesn't work on Windows.
if has_path_sep(target.name):
# Target names really should not have slashes in them, but
# unfortunately we did not check for that and some downstream projects
# now have them. Once slashes are forbidden, remove this bit.
target_slashname_workaround_dir = os.path.join(
os.path.dirname(target.name),
self.get_target_dir(target))
else:
target_slashname_workaround_dir = self.get_target_dir(target)
(rpath_args, target.rpath_dirs_to_remove) = (
linker.build_rpath_args(self.environment,
self.environment.get_build_dir(),
target_slashname_workaround_dir,
self.determine_rpath_dirs(target),
target.build_rpath,
target.install_rpath))
commands += rpath_args
# Add link args to link to all internal libraries (link_with:) and
# internal dependencies needed by this target.
if linker_base == 'STATIC':
# Link arguments of static libraries are not put in the command
# line of the library. They are instead appended to the command
# line where the static library is used.
dependencies = []
else:
dependencies = target.get_dependencies()
internal = self.build_target_link_arguments(linker, dependencies)
#In AIX since shared libraries are archived the dependencies must
#depend on .a file with the .so and not directly on the .so file.
if self.environment.machines[target.for_machine].is_aix():
for i, val in enumerate(internal):
internal[i] = linker.get_archive_name(val)
commands += internal
# Only non-static built targets need link args and link dependencies
if not isinstance(target, build.StaticLibrary):
# For 'automagic' deps: Boost and GTest. Also dependency('threads').
# pkg-config puts the thread flags itself via `Cflags:`
commands += linker.get_target_link_args(target)
# External deps must be last because target link libraries may depend on them.
for dep in target.get_external_deps():
# Extend without reordering or de-dup to preserve `-L -l` sets
# https://github.com/mesonbuild/meson/issues/1718
commands.extend_preserving_lflags(linker.get_dependency_link_args(dep))
for d in target.get_dependencies():
if isinstance(d, build.StaticLibrary):
for dep in d.get_external_deps():
commands.extend_preserving_lflags(linker.get_dependency_link_args(dep))
# Add link args specific to this BuildTarget type that must not be overridden by dependencies
commands += self.get_target_type_link_args_post_dependencies(target, linker)
# Add link args for c_* or cpp_* build options. Currently this only
# adds c_winlibs and cpp_winlibs when building for Windows. This needs
# to be after all internal and external libraries so that unresolved
# symbols from those can be found here. This is needed when the
# *_winlibs that we want to link to are static mingw64 libraries.
if isinstance(linker, Compiler):
# The static linker doesn't know what language it is building, so we
# don't know what option. Fortunately, it doesn't care to see the
# language-specific options either.
#
# We shouldn't check whether we are making a static library, because
# in the LTO case we do use a real compiler here.
commands += linker.get_option_link_args(target.get_options())
dep_targets = []
dep_targets.extend(self.guess_external_link_dependencies(linker, target, commands, internal))
# Add libraries generated by custom targets
custom_target_libraries = self.get_custom_target_provided_libraries(target)
commands += extra_args
commands += custom_target_libraries
commands += stdlib_args # Standard library arguments go last, because they never depend on anything.
dep_targets.extend([self.get_dependency_filename(t) for t in dependencies])
dep_targets.extend([self.get_dependency_filename(t)
for t in target.link_depends])
elem = NinjaBuildElement(self.all_outputs, outname, linker_rule, obj_list, implicit_outs=implicit_outs)
elem.add_dep(dep_targets + custom_target_libraries)
elem.add_item('LINK_ARGS', commands)
self.create_target_linker_introspection(target, linker, commands)
return elem
def get_dependency_filename(self, t):
if isinstance(t, build.SharedLibrary):
return self.get_target_shsym_filename(t)
elif isinstance(t, mesonlib.File):
if t.is_built:
return t.relative_name()
else:
return t.absolute_path(self.environment.get_source_dir(),
self.environment.get_build_dir())
return self.get_target_filename(t)
def generate_shlib_aliases(self, target, outdir):
for alias, to, tag in target.get_aliases():
aliasfile = os.path.join(outdir, alias)
abs_aliasfile = os.path.join(self.environment.get_build_dir(), outdir, alias)
try:
os.remove(abs_aliasfile)
except Exception:
pass
try:
os.symlink(to, abs_aliasfile)
except NotImplementedError:
mlog.debug("Library versioning disabled because symlinks are not supported.")
except OSError:
mlog.debug("Library versioning disabled because we do not have symlink creation privileges.")
else:
self.implicit_meson_outs.append(aliasfile)
def generate_custom_target_clean(self, trees: T.List[str]) -> str:
e = self.create_phony_target('clean-ctlist', 'CUSTOM_COMMAND', 'PHONY')
d = CleanTrees(self.environment.get_build_dir(), trees)
d_file = os.path.join(self.environment.get_scratch_dir(), 'cleantrees.dat')
e.add_item('COMMAND', self.environment.get_build_command() + ['--internal', 'cleantrees', d_file])
e.add_item('description', 'Cleaning custom target directories')
self.add_build(e)
# Write out the data file passed to the script
with open(d_file, 'wb') as ofile:
pickle.dump(d, ofile)
return 'clean-ctlist'
def generate_gcov_clean(self) -> None:
gcno_elem = self.create_phony_target('clean-gcno', 'CUSTOM_COMMAND', 'PHONY')
gcno_elem.add_item('COMMAND', mesonlib.get_meson_command() + ['--internal', 'delwithsuffix', '.', 'gcno'])
gcno_elem.add_item('description', 'Deleting gcno files')
self.add_build(gcno_elem)
gcda_elem = self.create_phony_target('clean-gcda', 'CUSTOM_COMMAND', 'PHONY')
gcda_elem.add_item('COMMAND', mesonlib.get_meson_command() + ['--internal', 'delwithsuffix', '.', 'gcda'])
gcda_elem.add_item('description', 'Deleting gcda files')
self.add_build(gcda_elem)
def get_user_option_args(self):
cmds = []
for (k, v) in self.environment.coredata.options.items():
if k.is_project():
cmds.append('-D' + str(k) + '=' + (v.value if isinstance(v.value, str) else str(v.value).lower()))
# The order of these arguments must be the same between runs of Meson
# to ensure reproducible output. The order we pass them shouldn't
# affect behavior in any other way.
return sorted(cmds)
def generate_dist(self) -> None:
elem = self.create_phony_target('dist', 'CUSTOM_COMMAND', 'PHONY')
elem.add_item('DESC', 'Creating source packages')
elem.add_item('COMMAND', self.environment.get_build_command() + ['dist'])
elem.add_item('pool', 'console')
self.add_build(elem)
def generate_scanbuild(self) -> None:
if not environment.detect_scanbuild():
return
if 'scan-build' in self.all_outputs:
return
cmd = self.environment.get_build_command() + \
['--internal', 'scanbuild', self.environment.source_dir, self.environment.build_dir] + \
self.environment.get_build_command() + self.get_user_option_args()
elem = self.create_phony_target('scan-build', 'CUSTOM_COMMAND', 'PHONY')
elem.add_item('COMMAND', cmd)
elem.add_item('pool', 'console')
self.add_build(elem)
def generate_clangtool(self, name: str, extra_arg: T.Optional[str] = None) -> None:
target_name = 'clang-' + name
extra_args = []
if extra_arg:
target_name += f'-{extra_arg}'
extra_args.append(f'--{extra_arg}')
if not os.path.exists(os.path.join(self.environment.source_dir, '.clang-' + name)) and \
not os.path.exists(os.path.join(self.environment.source_dir, '_clang-' + name)):
return
if target_name in self.all_outputs:
return
cmd = self.environment.get_build_command() + \
['--internal', 'clang' + name, self.environment.source_dir, self.environment.build_dir] + \
extra_args
elem = self.create_phony_target(target_name, 'CUSTOM_COMMAND', 'PHONY')
elem.add_item('COMMAND', cmd)
elem.add_item('pool', 'console')
self.add_build(elem)
def generate_clangformat(self) -> None:
if not environment.detect_clangformat():
return
self.generate_clangtool('format')
self.generate_clangtool('format', 'check')
def generate_clangtidy(self) -> None:
import shutil
if not shutil.which('clang-tidy'):
return
self.generate_clangtool('tidy')
def generate_tags(self, tool: str, target_name: str) -> None:
import shutil
if not shutil.which(tool):
return
if target_name in self.all_outputs:
return
cmd = self.environment.get_build_command() + \
['--internal', 'tags', tool, self.environment.source_dir]
elem = self.create_phony_target(target_name, 'CUSTOM_COMMAND', 'PHONY')
elem.add_item('COMMAND', cmd)
elem.add_item('pool', 'console')
self.add_build(elem)
# For things like scan-build and other helper tools we might have.
def generate_utils(self) -> None:
self.generate_scanbuild()
self.generate_clangformat()
self.generate_clangtidy()
self.generate_tags('etags', 'TAGS')
self.generate_tags('ctags', 'ctags')
self.generate_tags('cscope', 'cscope')
cmd = self.environment.get_build_command() + ['--internal', 'uninstall']
elem = self.create_phony_target('uninstall', 'CUSTOM_COMMAND', 'PHONY')
elem.add_item('COMMAND', cmd)
elem.add_item('pool', 'console')
self.add_build(elem)
def generate_ending(self) -> None:
for targ, deps in [
('all', self.get_build_by_default_targets()),
('meson-test-prereq', self.get_testlike_targets()),
('meson-benchmark-prereq', self.get_testlike_targets(True))]:
targetlist = []
# These must also be built by default.
# XXX: Sometime in the future these should be built only before running tests.
if targ == 'all':
targetlist.extend(['meson-test-prereq', 'meson-benchmark-prereq'])
for t in deps.values():
# Add the first output of each target to the 'all' target so that
# they are all built
#Add archive file if shared library in AIX for build all.
if isinstance(t, build.SharedLibrary):
if self.environment.machines[t.for_machine].is_aix():
linker, stdlib_args = self.determine_linker_and_stdlib_args(t)
t.get_outputs()[0] = linker.get_archive_name(t.get_outputs()[0])
targetlist.append(os.path.join(self.get_target_dir(t), t.get_outputs()[0]))
elem = NinjaBuildElement(self.all_outputs, targ, 'phony', targetlist)
self.add_build(elem)
elem = self.create_phony_target('clean', 'CUSTOM_COMMAND', 'PHONY')
elem.add_item('COMMAND', self.ninja_command + ['-t', 'clean'])
elem.add_item('description', 'Cleaning')
# If we have custom targets in this project, add all their outputs to
# the list that is passed to the `cleantrees.py` script. The script
# will manually delete all custom_target outputs that are directories
# instead of files. This is needed because on platforms other than
# Windows, Ninja only deletes directories while cleaning if they are
# empty. https://github.com/mesonbuild/meson/issues/1220
ctlist = []
for t in self.build.get_targets().values():
if isinstance(t, build.CustomTarget):
# Create a list of all custom target outputs
for o in t.get_outputs():
ctlist.append(os.path.join(self.get_target_dir(t), o))
if ctlist:
elem.add_dep(self.generate_custom_target_clean(ctlist))
if OptionKey('b_coverage') in self.environment.coredata.options and \
self.environment.coredata.options[OptionKey('b_coverage')].value:
self.generate_gcov_clean()
elem.add_dep('clean-gcda')
elem.add_dep('clean-gcno')
self.add_build(elem)
deps = self.get_regen_filelist()
elem = NinjaBuildElement(self.all_outputs, 'build.ninja', 'REGENERATE_BUILD', deps)
elem.add_item('pool', 'console')
self.add_build(elem)
# If these files used to be explicitly created, they need to appear on the build graph somehow,
# otherwise cleandead deletes them. See https://github.com/ninja-build/ninja/issues/2299
if self.implicit_meson_outs:
elem = NinjaBuildElement(self.all_outputs, 'meson-implicit-outs', 'phony', self.implicit_meson_outs)
self.add_build(elem)
elem = NinjaBuildElement(self.all_outputs, 'reconfigure', 'REGENERATE_BUILD', 'PHONY')
elem.add_item('pool', 'console')
self.add_build(elem)
elem = NinjaBuildElement(self.all_outputs, deps, 'phony', '')
self.add_build(elem)
def get_introspection_data(self, target_id: str, target: build.Target) -> T.List[T.Dict[str, T.Union[bool, str, T.List[T.Union[str, T.Dict[str, T.Union[str, T.List[str], bool]]]]]]]:
data = self.introspection_data.get(target_id)
if not data:
return super().get_introspection_data(target_id, target)
return list(data.values())
def _scan_fortran_file_deps(src: Path, srcdir: Path, dirname: Path, tdeps, compiler) -> T.List[str]:
"""
scan a Fortran file for dependencies. Needs to be distinct from target
to allow for recursion induced by `include` statements.er
It makes a number of assumptions, including
* `use`, `module`, `submodule` name is not on a continuation line
Regex
-----
* `incre` works for `#include "foo.f90"` and `include "foo.f90"`
* `usere` works for legacy and Fortran 2003 `use` statements
* `submodre` is for Fortran >= 2008 `submodule`
"""
incre = re.compile(FORTRAN_INCLUDE_PAT, re.IGNORECASE)
usere = re.compile(FORTRAN_USE_PAT, re.IGNORECASE)
submodre = re.compile(FORTRAN_SUBMOD_PAT, re.IGNORECASE)
mod_files = []
src = Path(src)
with src.open(encoding='ascii', errors='ignore') as f:
for line in f:
# included files
incmatch = incre.match(line)
if incmatch is not None:
incfile = src.parent / incmatch.group(1)
# NOTE: src.parent is most general, in particular for CMake subproject with Fortran file
# having an `include 'foo.f'` statement.
if incfile.suffix.lower()[1:] in compiler.file_suffixes:
mod_files.extend(_scan_fortran_file_deps(incfile, srcdir, dirname, tdeps, compiler))
# modules
usematch = usere.match(line)
if usematch is not None:
usename = usematch.group(1).lower()
if usename == 'intrinsic': # this keeps the regex simpler
continue
if usename not in tdeps:
# The module is not provided by any source file. This
# is due to:
# a) missing file/typo/etc
# b) using a module provided by the compiler, such as
# OpenMP
# There's no easy way to tell which is which (that I
# know of) so just ignore this and go on. Ideally we
# would print a warning message to the user but this is
# a common occurrence, which would lead to lots of
# distracting noise.
continue
srcfile = srcdir / tdeps[usename].fname # type: Path
if not srcfile.is_file():
if srcfile.name != src.name: # generated source file
pass
else: # subproject
continue
elif srcfile.samefile(src): # self-reference
continue
mod_name = compiler.module_name_to_filename(usename)
mod_files.append(str(dirname / mod_name))
else: # submodules
submodmatch = submodre.match(line)
if submodmatch is not None:
parents = submodmatch.group(1).lower().split(':')
assert len(parents) in {1, 2}, (
'submodule ancestry must be specified as'
f' ancestor:parent but Meson found {parents}')
ancestor_child = '_'.join(parents)
if ancestor_child not in tdeps:
raise MesonException("submodule {} relies on ancestor module {} that was not found.".format(submodmatch.group(2).lower(), ancestor_child.split('_', maxsplit=1)[0]))
submodsrcfile = srcdir / tdeps[ancestor_child].fname # type: Path
if not submodsrcfile.is_file():
if submodsrcfile.name != src.name: # generated source file
pass
else: # subproject
continue
elif submodsrcfile.samefile(src): # self-reference
continue
mod_name = compiler.module_name_to_filename(ancestor_child)
mod_files.append(str(dirname / mod_name))
return mod_files