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import re
import os
import sys
from cpuinfo import cpu
from fcompiler import FCompiler
from exec_command import find_executable
class GnuFCompiler(FCompiler):
compiler_type = 'gnu'
version_pattern = r'GNU Fortran (\(GCC\)|\(GCC.*\)\)|)\s*'\
'(?P<version>[^\s*\)]+)'
for fc_exe in map(find_executable,['g77','f77']):
if os.path.isfile(fc_exe):
break
executables = {
'version_cmd' : [fc_exe,"--version"],
'compiler_f77' : [fc_exe,"-Wall","-fno-second-underscore"],
'compiler_f90' : None,
'compiler_fix' : None,
'linker_so' : [fc_exe],
'archiver' : ["ar", "-cr"],
'ranlib' : ["ranlib"],
}
def get_flags(self):
opt = FCompiler.get_flags(self)
if os.name != 'nt':
opt.append('-fPIC')
return opt
def get_linker_so(self):
# win32 linking should be handled by standard linker
# Darwin g77 cannot be used as a linker.
if re.match(r'(win32|cygwin.*|darwin)', sys.platform):
return
return FCompiler.get_linker_so(self)
def get_flags_linker_so(self):
opt = FCompiler.get_flags_linker_so(self)
if not re.match(r'(win32|cygwin.*|darwin)', sys.platform):
opt.append("-shared")
if sys.platform[:5]=='sunos':
# SunOS often has dynamically loaded symbols defined in the
# static library libg2c.a The linker doesn't like this. To
# ignore the problem, use the -mimpure-text flag. It isn't
# the safest thing, but seems to work. 'man gcc' says:
# ".. Instead of using -mimpure-text, you should compile all
# source code with -fpic or -fPIC."
opt.append('-mimpure-text')
return opt
def get_libgcc_dir(self):
status, output = self.exec_command('%s -print-libgcc-file-name' \
% (self.compiler_f77[0]),use_tee=0)
if not status:
return os.path.dirname(output)
return
def get_library_dirs(self):
opt = FCompiler.get_library_dirs(self)
if sys.platform[:5] != 'linux':
d = self.get_libgcc_dir()
if d:
opt.append(d)
return opt
def get_libraries(self):
opt = FCompiler.get_library_dirs(self)
d = self.get_libgcc_dir()
if d is not None:
for g2c in ['g2c-pic','g2c']:
f = self.static_lib_format % (g2c, self.static_lib_extension)
if os.path.isfile(os.path.join(d,f)):
break
else:
g2c = 'g2c'
if sys.platform=='win32':
opt.extend(['gcc',g2c])
else:
opt.append(g2c)
return opt
def get_flags_debug(self):
return ['-g']
def get_flags_opt(self):
opt = ['-O3','-funroll-loops']
return opt
def get_flags_arch(self):
opt = []
if sys.platform=='darwin':
if os.name != 'posix':
# this should presumably correspond to Apple
if cpu.is_ppc():
opt.append('-arch ppc')
elif cpu.is_i386():
opt.append('-arch i386')
for a in '601 602 603 603e 604 604e 620 630 740 7400 7450 750'\
'403 505 801 821 823 860'.split():
if getattr(cpu,'is_ppc%s'%a)():
opt.append('-mcpu='+a)
opt.append('-mtune='+a)
break
return opt
march_flag = 1
if self.get_version() == '0.5.26': # gcc 3.0
if cpu.is_AthlonK6():
opt.append('-march=k6')
elif cpu.is_AthlonK7():
opt.append('-march=athlon')
else:
march_flag = 0
elif self.get_version() >= '3.1.1': # gcc >= 3.1.1
if cpu.is_AthlonK6():
opt.append('-march=k6')
elif cpu.is_AthlonK6_2():
opt.append('-march=k6-2')
elif cpu.is_AthlonK6_3():
opt.append('-march=k6-3')
elif cpu.is_AthlonK7():
opt.append('-march=athlon')
elif cpu.is_AthlonMP():
opt.append('-march=athlon-mp')
# there's also: athlon-tbird, athlon-4, athlon-xp
elif cpu.is_PentiumIV():
opt.append('-march=pentium4')
elif cpu.is_PentiumIII():
opt.append('-march=pentium3')
elif cpu.is_PentiumII():
opt.append('-march=pentium2')
else:
march_flag = 0
if cpu.has_mmx(): opt.append('-mmmx')
if self.get_version() > '3.2.2':
if cpu.has_sse2(): opt.append('-msse2')
if cpu.has_sse(): opt.append('-msse')
if cpu.has_3dnow(): opt.append('-m3dnow')
else:
march_flag = 0
if march_flag:
pass
elif cpu.is_i686():
opt.append('-march=i686')
elif cpu.is_i586():
opt.append('-march=i586')
elif cpu.is_i486():
opt.append('-march=i486')
elif cpu.is_i386():
opt.append('-march=i386')
if cpu.is_Intel():
opt.extend(['-malign-double','-fomit-frame-pointer'])
return opt
if __name__ == '__main__':
from distutils import log
log.set_verbosity(2)
from fcompiler import new_fcompiler
compiler = new_fcompiler(compiler='gnu')
compiler.customize()
print compiler.get_version()
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