1############################################################################ 2# Copyright 2017 Intel Corporation 3# 4# Licensed under the Apache License, Version 2.0 (the "License"); 5# you may not use this file except in compliance with the License. 6# You may obtain a copy of the License at 7# 8# http://www.apache.org/licenses/LICENSE-2.0 9# 10# Unless required by applicable law or agreed to in writing, software 11# distributed under the License is distributed on an "AS IS" BASIS, 12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13# See the License for the specific language governing permissions and 14# limitations under the License. 15############################################################################ 16# pylint: disable=locally-disabled, invalid-name, missing-docstring 17 18"""win32 gcc compiler configuration for embedded 19""" 20from parts.config import ConfigValues, configuration 21 22def map_default_version(env): 23 return env['GCC_VERSION'] 24 25config = configuration(map_default_version) 26 27config.VersionRange( 28 "3-*", 29 append=ConfigValues( 30 CCFLAGS=[ 31 # optimize for size 32 '-Os', 33 # prevent using built in stdlib replacement functions 34 '-fno-builtin', 35 '-fno-stack-protector', 36 '-fomit-frame-pointer', 37 '-fno-asynchronous-unwind-tables', 38 # allow linker to optimize out not used stuff 39 '-fdata-sections', 40 '-ffunction-sections', 41 # treat warnings as errors 42 '-Werror', 43 # enable all warnings 44 '-Wall', 45 # extra warnings 46 '-Wextra', 47 # Allow struct initilization with {0} 48 '-Wno-missing-braces', 49 # dump stack usage to file 50 '-fstack-usage', 51 # dump control flow graph 52 '-fdump-tree-cfg-raw', 53 ], 54 CPPDEFINES=[ 55 'NDEBUG', 56 ], 57 SHLINKFLAGS=[ 58 # do not use stadard system entrypoint 59 '-e 0', 60 ], 61 LINKFLAGS=[ 62 # do not link standard system libraries 63 '-nodefaultlibs', 64 '-nostdlib', 65 # do not use stadard system startup 66 '-nostartfiles', 67 # remove all symbol table and relocation information 68 '-s', 69 # link only what is used 70 '-Xlinker', 71 '--gc-sections', 72 ],)) 73