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-#!/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
-variables intended for 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
-
-else one can set ``cfg.env.CHOST`` in ``wscript`` before loading ``cross_gnu``.
-
-Usage:
-
-- In your build script::
-
- def configure(cfg):
- ...
- for variant in x_variants:
- setenv(variant)
- conf.load('cross_gnu')
- 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
-
-This example ``wscript`` compiles to Microchip PIC (xc16-gcc-xyz must be in PATH):
-
-.. code:: python
-
- from waflib import Configure
-
- #from https://gist.github.com/rpuntaie/2bddfb5d7b77db26415ee14371289971
- import waf_variants
-
- variants='pc fw/variant1 fw/variant2'.split()
-
- top = "."
- out = "../build"
-
- PIC = '33FJ128GP804' #dsPICxxx
-
- @Configure.conf
- def gcc_modifier_xc16(cfg):
- v = cfg.env
- v.cprogram_PATTERN = '%s.elf'
- v.LINKFLAGS_cprogram = ','.join(['-Wl','','','--defsym=__MPLAB_BUILD=0','','--script=p'+PIC+'.gld',
- '--stack=16','--check-sections','--data-init','--pack-data','--handles','--isr','--no-gc-sections',
- '--fill-upper=0','--stackguard=16','--no-force-link','--smart-io']) #,'--report-mem'])
- v.CFLAGS_cprogram=['-mcpu='+PIC,'-omf=elf','-mlarge-code','-msmart-io=1',
- '-msfr-warn=off','-mno-override-inline','-finline','-Winline']
-
- def configure(cfg):
- if 'fw' in cfg.variant: #firmware
- cfg.env.DEST_OS = 'xc16' #cfg.env.CHOST = 'xc16' #works too
- cfg.load('c cross_gnu') #cfg.env.CHOST becomes ['xc16']
- ...
- else: #configure for pc SW
- ...
-
- def build(bld):
- if 'fw' in bld.variant: #firmware
- bld.program(source='maintst.c', target='maintst');
- bld(source='maintst.elf', target='maintst.hex', rule="xc16-bin2hex ${SRC} -a -omf=elf")
- else: #build for pc SW
- ...
-
-"""
-
-import os
-from waflib import Utils, Configure
-from waflib.Tools import ccroot, gcc
-
-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_var(conf, name, wafname=None, cross=False):
- wafname = wafname or name
-
- if wafname in conf.env:
- value = conf.env[wafname]
- if isinstance(value, str):
- value = [value]
- else:
- envar = os.environ.get(name)
- if not envar:
- 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))
-
- 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)
- 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))
-
- 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)
- 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_var('CHOST', cross=True)
- conf.env.CHOST = conf.env.CHOST or [conf.env.DEST_OS]
- conf.env.DEST_OS = conf.env.CHOST[0].replace('-','_')
- 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]
-
-def configure(conf):
- """
- Configuration example for gcc, it will not work for g++/clang/clang++
- """
- conf.xcheck_host()
- conf.gcc_common_flags()
- conf.gcc_modifier_platform()
- conf.cc_load_tools()
- conf.cc_add_flags()
- conf.link_add_flags()