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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.
- import subprocess, os.path
- import typing as T
- from ..mesonlib import EnvironmentException, MachineChoice, Popen_safe
- from .compilers import Compiler, rust_buildtype_args, clike_debug_args
- if T.TYPE_CHECKING:
- from ..envconfig import MachineInfo
- from ..environment import Environment # noqa: F401
- rust_optimization_args = {'0': [],
- 'g': ['-C', 'opt-level=0'],
- '1': ['-C', 'opt-level=1'],
- '2': ['-C', 'opt-level=2'],
- '3': ['-C', 'opt-level=3'],
- 's': ['-C', 'opt-level=s'],
- }
- class RustCompiler(Compiler):
- # rustc doesn't invoke the compiler itself, it doesn't need a LINKER_PREFIX
- language = 'rust'
- def __init__(self, exelist, version, for_machine: MachineChoice,
- is_cross, info: 'MachineInfo', exe_wrapper=None, **kwargs):
- super().__init__(exelist, version, for_machine, info, **kwargs)
- self.exe_wrapper = exe_wrapper
- self.id = 'rustc'
- self.is_cross = is_cross
- def needs_static_linker(self):
- return False
- def name_string(self):
- return ' '.join(self.exelist)
- def sanity_check(self, work_dir, environment):
- source_name = os.path.join(work_dir, 'sanity.rs')
- output_name = os.path.join(work_dir, 'rusttest')
- with open(source_name, 'w') as ofile:
- ofile.write('''fn main() {
- }
- ''')
- pc = subprocess.Popen(self.exelist + ['-o', output_name, source_name],
- stdout=subprocess.PIPE,
- stderr=subprocess.PIPE,
- cwd=work_dir)
- stdo, stde = pc.communicate()
- stdo = stdo.decode('utf-8', errors='replace')
- stde = stde.decode('utf-8', errors='replace')
- if pc.returncode != 0:
- raise EnvironmentException('Rust compiler %s can not compile programs.\n%s\n%s' % (
- self.name_string(),
- stdo,
- stde))
- if self.is_cross:
- if self.exe_wrapper is None:
- # Can't check if the binaries run so we have to assume they do
- return
- cmdlist = self.exe_wrapper + [output_name]
- else:
- cmdlist = [output_name]
- pe = subprocess.Popen(cmdlist, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
- pe.wait()
- if pe.returncode != 0:
- raise EnvironmentException('Executables created by Rust compiler %s are not runnable.' % self.name_string())
- def get_dependency_gen_args(self, outfile):
- return ['--dep-info', outfile]
- def get_buildtype_args(self, buildtype):
- return rust_buildtype_args[buildtype]
- def get_sysroot(self):
- cmd = self.exelist + ['--print', 'sysroot']
- p, stdo, stde = Popen_safe(cmd)
- return stdo.split('\n')[0]
- def get_debug_args(self, is_debug):
- return clike_debug_args[is_debug]
- def get_optimization_args(self, optimization_level):
- return rust_optimization_args[optimization_level]
- def compute_parameters_with_absolute_paths(self, parameter_list, build_dir):
- for idx, i in enumerate(parameter_list):
- if i[:2] == '-L':
- for j in ['dependency', 'crate', 'native', 'framework', 'all']:
- combined_len = len(j) + 3
- if i[:combined_len] == '-L{}='.format(j):
- parameter_list[idx] = i[:combined_len] + os.path.normpath(os.path.join(build_dir, i[combined_len:]))
- break
- return parameter_list
- def get_std_exe_link_args(self):
- return []
- # Rust does not have a use_linker_args because it dispatches to a gcc-like
- # C compiler for dynamic linking, as such we invoke the C compiler's
- # use_linker_args method instead.
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