mirror of https://github.com/ArduPilot/ardupilot
168 lines
5.0 KiB
Python
168 lines
5.0 KiB
Python
"""
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WAF Tool to select the correct toolchain based on the target archtecture.
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This tool loads compiler_c and compiler_cxx, so you don't need to load them
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(and you must not load them before this tool). Use the environment variable
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TOOLCHAIN to define the toolchain.
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Example::
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def configure(cfg):
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cfg.env.TOOLCHAIN = 'arm-linux-gnueabihf'
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cfg.load('toolchain')
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"""
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from waflib import Errors, Context, Utils
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from waflib.Configure import conf
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from waflib.Tools import compiler_c, compiler_cxx
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from waflib.Tools import clang, clangxx, gcc, gxx
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from waflib.Tools import c_config
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from waflib import Logs
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import os
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import re
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import sys
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@conf
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def find_gxx(conf):
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names = ['g++', 'c++']
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if conf.env.TOOLCHAIN != 'native':
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names = ['%s-%s' % (conf.env.TOOLCHAIN, n) for n in names]
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cxx = conf.find_program(names, var='CXX')
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conf.get_cc_version(cxx, gcc=True)
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conf.env.CXX_NAME = 'gcc'
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@conf
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def find_gcc(conf):
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names = ['gcc', 'cc']
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if conf.env.TOOLCHAIN != 'native':
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names = ['%s-%s' % (conf.env.TOOLCHAIN, n) for n in names]
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cc = conf.find_program(names, var='CC')
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conf.get_cc_version(cc, gcc=True)
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conf.env.CC_NAME = 'gcc'
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def _clang_cross_support(cfg):
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if _clang_cross_support.called:
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return
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prefix = cfg.env.TOOLCHAIN + '-'
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try:
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cfg.find_program(prefix + 'gcc', var='CROSS_GCC')
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except Errors.ConfigurationError as e:
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cfg.fatal('toolchain: clang: couldn\'t find cross GCC', ex=e)
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environ = dict(os.environ)
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if 'TOOLCHAIN_CROSS_AR' in environ:
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# avoid OS's environment to mess up toolchain path finding
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del environ['TOOLCHAIN_CROSS_AR']
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try:
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cfg.find_program(
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prefix + 'ar',
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var='TOOLCHAIN_CROSS_AR',
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environ=environ,
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)
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except Errors.ConfigurationError as e:
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cfg.fatal('toolchain: clang: couldn\'t find toolchain path', ex=e)
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toolchain_path = os.path.join(cfg.env.TOOLCHAIN_CROSS_AR[0], '..', '..')
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toolchain_path = os.path.abspath(toolchain_path)
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cfg.msg('Using toolchain path for clang', toolchain_path)
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sysroot = cfg.cmd_and_log(
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[cfg.env.CROSS_GCC[0], '--print-sysroot'],
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quiet=Context.BOTH,
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).strip()
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cfg.env.CLANG_FLAGS = [
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'--target=' + cfg.env.TOOLCHAIN,
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'--gcc-toolchain=' + toolchain_path,
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'--sysroot=' + sysroot,
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'-B' + os.path.join(toolchain_path, 'bin')
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]
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_clang_cross_support.called = False
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def _set_clang_crosscompilation_wrapper(tool_module):
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original_configure = tool_module.configure
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def new_configure(cfg):
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if cfg.env.TOOLCHAIN == 'native':
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original_configure(cfg)
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return
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cfg.env.stash()
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try:
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_clang_cross_support(cfg)
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original_configure(cfg)
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except Errors.ConfigurationError as e:
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cfg.env.revert()
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raise
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else:
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cfg.env.commit()
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tool_module.configure = new_configure
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_set_clang_crosscompilation_wrapper(clang)
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_set_clang_crosscompilation_wrapper(clangxx)
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def _filter_supported_c_compilers(*compilers):
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for k in compiler_c.c_compiler:
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l = compiler_c.c_compiler[k]
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compiler_c.c_compiler[k] = [c for c in compilers if c in l]
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def _filter_supported_cxx_compilers(*compilers):
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for k in compiler_cxx.cxx_compiler:
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l = compiler_cxx.cxx_compiler[k]
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compiler_cxx.cxx_compiler[k] = [c for c in compilers if c in l]
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def _set_pkgconfig_crosscompilation_wrapper(cfg):
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original_validatecfg = cfg.validate_cfg
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@conf
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def new_validate_cfg(kw):
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if 'path' not in kw:
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if not cfg.env.PKGCONFIG:
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cfg.find_program('%s-pkg-config' % cfg.env.TOOLCHAIN, var='PKGCONFIG')
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kw['path'] = cfg.env.PKGCONFIG
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original_validatecfg(kw)
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cfg.validate_cfg = new_validate_cfg
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def configure(cfg):
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_filter_supported_c_compilers('gcc', 'clang')
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_filter_supported_cxx_compilers('g++', 'clang++')
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cfg.msg('Using toolchain', cfg.env.TOOLCHAIN)
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if cfg.env.TOOLCHAIN == 'native':
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cfg.load('compiler_cxx compiler_c')
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if not cfg.options.disable_gccdeps:
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cfg.load('gccdeps')
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return
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_set_pkgconfig_crosscompilation_wrapper(cfg)
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if sys.platform.startswith("cygwin"):
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# on cygwin arm-none-eabi-ar doesn't support the @FILE syntax for splitting long lines
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cfg.find_program('ar', var='AR', quiet=True)
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else:
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cfg.find_program('%s-ar' % cfg.env.TOOLCHAIN, var='AR', quiet=True)
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cfg.load('compiler_cxx compiler_c')
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if sys.platform.startswith("cygwin"):
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cfg.find_program('nm', var='NM')
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else:
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cfg.find_program('%s-nm' % cfg.env.TOOLCHAIN, var='NM')
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if not cfg.options.disable_gccdeps:
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cfg.load('gccdeps')
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if cfg.env.COMPILER_CC == 'clang':
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cfg.env.CFLAGS += cfg.env.CLANG_FLAGS
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cfg.env.LINKFLAGS_cprogram += cfg.env.CLANG_FLAGS
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if cfg.env.COMPILER_CXX == 'clang++':
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cfg.env.CXXFLAGS += cfg.env.CLANG_FLAGS
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cfg.env.LINKFLAGS_cxxprogram += cfg.env.CLANG_FLAGS
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