# 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
from .. import mlog
from ..mesonlib import EnvironmentException, Popen_safe
from .compilers import Compiler, cuda_buildtype_args, cuda_optimization_args, cuda_debug_args
class CudaCompiler(Compiler):
def __init__(self, exelist, version, is_cross, exe_wrapper=None):
if not hasattr(self, 'language'):
self.language = 'cuda'
super().__init__(exelist, version)
self.is_cross = is_cross
self.exe_wrapper = exe_wrapper
self.id = 'nvcc'
default_warn_args = []
self.warn_args = {'1': default_warn_args,
'2': default_warn_args + ['-Wextra'],
'3': default_warn_args + ['-Wextra', '-Wpedantic']}
def needs_static_linker(self):
return False
def get_display_language(self):
return 'Cuda'
def get_no_stdinc_args(self):
return []
def sanity_check(self, work_dir, environment):
source_name = os.path.join(work_dir, 'sanitycheckcuda.cu')
binary_name = os.path.join(work_dir, 'sanitycheckcuda')
extra_flags = self.get_cross_extra_flags(environment, link=False)
if self.is_cross:
extra_flags += self.get_compile_only_args()
code = '''
__global__ void kernel (void) {
}
int main(int argc,char** argv){
return 0;
}
'''
with open(source_name, 'w') as ofile:
ofile.write(code)
pc = subprocess.Popen(self.exelist + extra_flags + [source_name, '-o', binary_name])
pc.wait()
if pc.returncode != 0:
raise EnvironmentException('Cuda compiler %s can not compile programs.' % self.name_string())
if self.is_cross:
# Can't check if the binaries run so we have to assume they do
return
pe = subprocess.Popen(binary_name)
pe.wait()
if pe.returncode != 0:
raise EnvironmentException('Executables created by Cuda compiler %s are not runnable.' % self.name_string())
def get_compiler_check_args(self):
return super().get_compiler_check_args() + []
def has_header_symbol(self, hname, symbol, prefix, env, extra_args=None, dependencies=None):
if super().has_header_symbol(hname, symbol, prefix, env, extra_args, dependencies):
return True
if extra_args is None:
extra_args = []
fargs = {'prefix': prefix, 'header': hname, 'symbol': symbol}
t = '''{prefix}
#include <{header}>
using {symbol};
int main () {{ return 0; }}'''
return self.compiles(t.format(**fargs), env, extra_args, dependencies)
def sanity_check_impl(self, work_dir, environment, sname, code):
mlog.debug('Sanity testing ' + self.get_display_language() + ' compiler:', ' '.join(self.exelist))
mlog.debug('Is cross compiler: %s.' % str(self.is_cross))
extra_flags = []
source_name = os.path.join(work_dir, sname)
binname = sname.rsplit('.', 1)[0]
if self.is_cross:
binname += '_cross'
if self.exe_wrapper is None:
# Linking cross built apps is painful. You can't really
# tell if you should use -nostdlib or not and for example
# on OSX the compiler binary is the same but you need
# a ton of compiler flags to differentiate between
# arm and x86_64. So just compile.
extra_flags += self.get_cross_extra_flags(environment, link=False)
extra_flags += self.get_compile_only_args()
else:
extra_flags += self.get_cross_extra_flags(environment, link=True)
# Is a valid executable output for all toolchains and platforms
binname += '.exe'
# Write binary check source
binary_name = os.path.join(work_dir, binname)
with open(source_name, 'w') as ofile:
ofile.write(code)
# Compile sanity check
cmdlist = self.exelist + extra_flags + [source_name] + self.get_output_args(binary_name)
pc, stdo, stde = Popen_safe(cmdlist, cwd=work_dir)
mlog.debug('Sanity check compiler command line:', ' '.join(cmdlist))
mlog.debug('Sanity check compile stdout:')
mlog.debug(stdo)
mlog.debug('-----\nSanity check compile stderr:')
mlog.debug(stde)
mlog.debug('-----')
if pc.returncode != 0:
raise EnvironmentException('Compiler {0} can not compile programs.'.format(self.name_string()))
# Run sanity check
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 + [binary_name]
else:
cmdlist = [binary_name]
mlog.debug('Running test binary command: ' + ' '.join(cmdlist))
pe = subprocess.Popen(cmdlist)
pe.wait()
if pe.returncode != 0:
raise EnvironmentException('Executables created by {0} compiler {1} are not runnable.'.format(self.language, self.name_string()))
def get_output_args(self, target):
return ['-o', target]
def name_string(self):
return ' '.join(self.exelist)
def get_dependency_gen_args(self, outtarget, outfile):
return []
def get_compile_only_args(self):
return ['-c']
def get_no_optimization_args(self):
return ['-O0']
def get_optimization_args(self, optimization_level):
return cuda_optimization_args[optimization_level]
def get_debug_args(self, is_debug):
return cuda_debug_args[is_debug]
def get_linker_exelist(self):
return self.exelist[:]
def get_linker_output_args(self, outputname):
return ['-o', outputname]
def get_warn_args(self, level):
return self.warn_args[level]
def get_buildtype_args(self, buildtype):
return cuda_buildtype_args[buildtype]
def get_include_args(self, path, is_system):
if path == '':
path = '.'
return ['-I' + path]
def depfile_for_object(self, objfile):
return objfile + '.' + self.get_depfile_suffix()
def get_depfile_suffix(self):
return 'd'
def get_buildtype_linker_args(self, buildtype):
return []
def get_std_exe_link_args(self):
return []
def build_rpath_args(self, build_dir, from_dir, rpath_paths, build_rpath, install_rpath):
return []
def get_linker_search_args(self, dirname):
return ['/LIBPATH:' + dirname]
def linker_to_compiler_args(self, args):
return ['/link'] + args
def get_pic_args(self):
return []
def compute_parameters_with_absolute_paths(self, parameter_list, build_dir):
return []