diff options
Diffstat (limited to 'third_party/waf/waflib/extras/cfg_cross_gnu.py')
| -rw-r--r-- | third_party/waf/waflib/extras/cfg_cross_gnu.py | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/third_party/waf/waflib/extras/cfg_cross_gnu.py b/third_party/waf/waflib/extras/cfg_cross_gnu.py new file mode 100644 index 00000000000..0fb2efb080d --- /dev/null +++ b/third_party/waf/waflib/extras/cfg_cross_gnu.py @@ -0,0 +1,176 @@ +#!/usr/bin/python +# -*- coding: utf-8 vi:ts=4:noexpandtab +# Tool to provide dedicated variables for cross-compilation + +__author__ = __maintainer__ = "Jérôme Carretero <cJ-waf@zougloub.eu>" +__copyright__ = "Jérôme Carretero, 2014" + +""" + +This tool allows to use environment variables to define cross-compilation things, +mostly used when you use build variants. + +The variables are obtained from the environment in 3 ways: + +1. By defining CHOST, they can be derived as ${CHOST}-${TOOL} +2. By defining HOST_x +3. By defining ${CHOST//-/_}_x + +Usage: + +- In your build script:: + + def configure(cfg): + ... + conf.load('c_cross_gnu') + for variant in x_variants: + conf.xcheck_host() + conf.xcheck_host_var('POUET') + ... + + ... + +- Then:: + + CHOST=arm-hardfloat-linux-gnueabi waf configure + + env arm-hardfloat-linux-gnueabi-CC="clang -..." waf configure + + CFLAGS=... CHOST=arm-hardfloat-linux-gnueabi HOST_CFLAGS=-g waf configure + + HOST_CC="clang -..." waf configure + +""" + +import os +from waflib import Utils, Configure + +try: + from shlex import quote +except ImportError: + from pipes import quote + +def get_chost_stuff(conf): + """ + Get the CHOST environment variable contents + """ + chost = None + chost_envar = None + if conf.env.CHOST: + chost = conf.env.CHOST[0] + chost_envar = chost.replace('-', '_') + return chost, chost_envar + + +@Configure.conf +def xcheck_envar(conf, name, wafname=None, cross=False): + wafname = wafname or name + envar = os.environ.get(name, None) + + if envar is None: + return + + value = Utils.to_list(envar) if envar != '' else [envar] + + conf.env[wafname] = value + if cross: + pretty = 'cross-compilation %s' % wafname + else: + pretty = wafname + conf.msg('Will use %s' % pretty, + " ".join(quote(x) for x in value)) + +@Configure.conf +def xcheck_host_prog(conf, name, tool, wafname=None): + wafname = wafname or name + + chost, chost_envar = get_chost_stuff(conf) + + specific = None + if chost: + specific = os.environ.get('%s_%s' % (chost_envar, name), None) + + if specific: + value = Utils.to_list(specific) + conf.env[wafname] += value + conf.msg('Will use cross-compilation %s from %s_%s' \ + % (name, chost_envar, name), + " ".join(quote(x) for x in value)) + return + else: + envar = os.environ.get('HOST_%s' % name, None) + if envar is not None: + value = Utils.to_list(envar) + conf.env[wafname] = value + conf.msg('Will use cross-compilation %s from HOST_%s' \ + % (name, name), + " ".join(quote(x) for x in value)) + return + + if conf.env[wafname]: + return + + value = None + if chost: + value = '%s-%s' % (chost, tool) + + if value: + conf.env[wafname] = value + conf.msg('Will use cross-compilation %s from CHOST' \ + % wafname, value) + +@Configure.conf +def xcheck_host_envar(conf, name, wafname=None): + wafname = wafname or name + + chost, chost_envar = get_chost_stuff(conf) + + specific = None + if chost: + specific = os.environ.get('%s_%s' % (chost_envar, name), None) + + if specific: + value = Utils.to_list(specific) + conf.env[wafname] += value + conf.msg('Will use cross-compilation %s from %s_%s' \ + % (name, chost_envar, name), + " ".join(quote(x) for x in value)) + return + + + envar = os.environ.get('HOST_%s' % name, None) + if envar is None: + return + + value = Utils.to_list(envar) if envar != '' else [envar] + + conf.env[wafname] = value + conf.msg('Will use cross-compilation %s from HOST_%s' \ + % (name, name), + " ".join(quote(x) for x in value)) + + +@Configure.conf +def xcheck_host(conf): + conf.xcheck_envar('CHOST', cross=True) + conf.xcheck_host_prog('CC', 'gcc') + conf.xcheck_host_prog('CXX', 'g++') + conf.xcheck_host_prog('LINK_CC', 'gcc') + conf.xcheck_host_prog('LINK_CXX', 'g++') + conf.xcheck_host_prog('AR', 'ar') + conf.xcheck_host_prog('AS', 'as') + conf.xcheck_host_prog('LD', 'ld') + conf.xcheck_host_envar('CFLAGS') + conf.xcheck_host_envar('CXXFLAGS') + conf.xcheck_host_envar('LDFLAGS', 'LINKFLAGS') + conf.xcheck_host_envar('LIB') + conf.xcheck_host_envar('PKG_CONFIG_LIBDIR') + conf.xcheck_host_envar('PKG_CONFIG_PATH') + + if not conf.env.env: + conf.env.env = {} + conf.env.env.update(os.environ) + if conf.env.PKG_CONFIG_LIBDIR: + conf.env.env['PKG_CONFIG_LIBDIR'] = conf.env.PKG_CONFIG_LIBDIR[0] + if conf.env.PKG_CONFIG_PATH: + conf.env.env['PKG_CONFIG_PATH'] = conf.env.PKG_CONFIG_PATH[0] |