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#
# File : gcc.py
# This file is part of RT-Thread RTOS
# COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Change Logs:
# Date Author Notes
# 2018-05-22 Bernard The first version
import os
import re
import platform
def GetGCCRoot(rtconfig):
exec_path = rtconfig.EXEC_PATH
prefix = rtconfig.PREFIX
if prefix.endswith('-'):
prefix = prefix[:-1]
if exec_path == '/usr/bin':
root_path = os.path.join('/usr/lib', prefix)
else:
root_path = os.path.join(exec_path, '..', prefix)
return root_path
def CheckHeader(rtconfig, filename):
root = GetGCCRoot(rtconfig)
fn = os.path.join(root, 'include', filename)
if os.path.isfile(fn):
return True
# Usually the cross compiling gcc toolchain has directory as:
#
# bin
# lib
# share
# arm-none-eabi
# bin
# include
# lib
# share
prefix = rtconfig.PREFIX
if prefix.endswith('-'):
prefix = prefix[:-1]
fn = os.path.join(root, prefix, 'include', filename)
if os.path.isfile(fn):
return True
return False
# GCC like means the toolchains which are compatible with GCC
def GetGCCLikePLATFORM():
return ['gcc', 'armclang', 'llvm-arm']
def GetNewLibVersion(rtconfig):
version = None
try:
rtconfig.PREFIX
except:
return version
root = GetGCCRoot(rtconfig)
if CheckHeader(rtconfig, '_newlib_version.h'): # get version from _newlib_version.h file
f = open(os.path.join(root, 'include', '_newlib_version.h'), 'r')
if f:
for line in f:
if line.find('_NEWLIB_VERSION') != -1 and line.find('"') != -1:
version = re.search(r'\"([^"]+)\"', line).groups()[0]
f.close()
elif CheckHeader(rtconfig, 'newlib.h'): # get version from newlib.h
f = open(os.path.join(root, 'include', 'newlib.h'), 'r')
if f:
for line in f:
if line.find('_NEWLIB_VERSION') != -1 and line.find('"') != -1:
version = re.search(r'\"([^"]+)\"', line).groups()[0]
f.close()
return version
# FIXME: there is no musl version or musl macros can be found officially
def GetMuslVersion(rtconfig):
version = None
try:
rtconfig.PREFIX
except:
return version
if 'musl' in rtconfig.PREFIX:
version = 'unknown'
return version
def GCCResult(rtconfig, str):
import subprocess
result = ''
def checkAndGetResult(pattern, string):
if re.search(pattern, string):
return re.search(pattern, string).group(0)
return None
gcc_cmd = os.path.join(rtconfig.EXEC_PATH, rtconfig.CC)
# use temp file to get more information
f = open('__tmp.c', 'w')
if f:
f.write(str)
f.close()
# '-fdirectives-only',
if(platform.system() == 'Windows'):
child = subprocess.Popen([gcc_cmd, '-E', '-P', '__tmp.c'], stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
else:
child = subprocess.Popen(gcc_cmd + ' -E -P __tmp.c', stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
stdout, stderr = child.communicate()
# print(stdout)
if stderr != '' and stderr != b'':
print(stderr)
have_fdset = 0
have_sigaction = 0
have_sigevent = 0
have_siginfo = 0
have_sigval = 0
version = None
stdc = '1989'
posix_thread = 0
for line in stdout.split(b'\n'):
line = line.decode()
if re.search('fd_set', line):
have_fdset = 1
# check for sigal
if re.search('struct[ \t]+sigaction', line):
have_sigaction = 1
if re.search('struct[ \t]+sigevent', line):
have_sigevent = 1
if re.search('siginfo_t', line):
have_siginfo = 1
if re.search('union[ \t]+sigval', line):
have_sigval = 1
if re.search('char\* version', line):
version = re.search(r'\"([^"]+)\"', line).groups()[0]
if re.findall('iso_c_visible = [\d]+', line):
stdc = re.findall('[\d]+', line)[0]
if re.findall('pthread_create', line):
posix_thread = 1
if have_fdset:
result += '#define HAVE_FDSET 1\n'
if have_sigaction:
result += '#define HAVE_SIGACTION 1\n'
if have_sigevent:
result += '#define HAVE_SIGEVENT 1\n'
if have_siginfo:
result += '#define HAVE_SIGINFO 1\n'
if have_sigval:
result += '#define HAVE_SIGVAL 1\n'
if version:
result += '#define GCC_VERSION_STR "%s"\n' % version
result += '#define STDC "%s"\n' % stdc
if posix_thread:
result += '#define LIBC_POSIX_THREADS 1\n'
os.remove('__tmp.c')
return result
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