third_party/waf/waflib/extras/clang_cross.py

   1 #!/usr/bin/env python
   2 # encoding: utf-8
   3 # Krzysztof Kosiński 2014
   4 # DragoonX6 2018
   5
   6 """
   7 Detect the Clang C compiler
   8 This version is an attempt at supporting the -target and -sysroot flag of Clang.
   9 """
  10
  11 from waflib.Tools import ccroot, ar, gcc
  12 from waflib.Configure import conf
  13 import waflib.Context
  14 import waflib.extras.clang_cross_common
  15
  16 def options(opt):
  17         """
  18         Target triplet for clang::
  19                         $ waf configure --clang-target-triple=x86_64-pc-linux-gnu
  20         """
  21         cc_compiler_opts = opt.add_option_group('Configuration options')
  22         cc_compiler_opts.add_option('--clang-target-triple', default=None,
  23                 help='Target triple for clang',
  24                 dest='clang_target_triple')
  25         cc_compiler_opts.add_option('--clang-sysroot', default=None,
  26                 help='Sysroot for clang',
  27                 dest='clang_sysroot')
  28
  29 @conf
  30 def find_clang(conf):
  31         """
  32         Finds the program clang and executes it to ensure it really is clang
  33         """
  34
  35         import os
  36
  37         cc = conf.find_program('clang', var='CC')
  38
  39         if conf.options.clang_target_triple != None:
  40                 conf.env.append_value('CC', ['-target', conf.options.clang_target_triple])
  41
  42         if conf.options.clang_sysroot != None:
  43                 sysroot = str()
  44
  45                 if os.path.isabs(conf.options.clang_sysroot):
  46                         sysroot = conf.options.clang_sysroot
  47                 else:
  48                         sysroot = os.path.normpath(os.path.join(os.getcwd(), conf.options.clang_sysroot))
  49
  50                 conf.env.append_value('CC', ['--sysroot', sysroot])
  51
  52         conf.get_cc_version(cc, clang=True)
  53         conf.env.CC_NAME = 'clang'
  54
  55 @conf
  56 def clang_modifier_x86_64_w64_mingw32(conf):
  57         conf.gcc_modifier_win32()
  58
  59 @conf
  60 def clang_modifier_i386_w64_mingw32(conf):
  61         conf.gcc_modifier_win32()
  62
  63 @conf
  64 def clang_modifier_x86_64_windows_msvc(conf):
  65         conf.clang_modifier_msvc()
  66
  67         # Allow the user to override any flags if they so desire.
  68         clang_modifier_user_func = getattr(conf, 'clang_modifier_x86_64_windows_msvc_user', None)
  69         if clang_modifier_user_func:
  70                 clang_modifier_user_func()
  71
  72 @conf
  73 def clang_modifier_i386_windows_msvc(conf):
  74         conf.clang_modifier_msvc()
  75
  76         # Allow the user to override any flags if they so desire.
  77         clang_modifier_user_func = getattr(conf, 'clang_modifier_i386_windows_msvc_user', None)
  78         if clang_modifier_user_func:
  79                 clang_modifier_user_func()
  80
  81 def configure(conf):
  82         conf.find_clang()
  83         conf.find_program(['llvm-ar', 'ar'], var='AR')
  84         conf.find_ar()
  85         conf.gcc_common_flags()
  86         # Allow the user to provide flags for the target platform.
  87         conf.gcc_modifier_platform()
  88         # And allow more fine grained control based on the compiler's triplet.
  89         conf.clang_modifier_target_triple()
  90         conf.cc_load_tools()
  91         conf.cc_add_flags()
  92         conf.link_add_flags()