waflib/Tools/gcc.py

   1 #!/usr/bin/env python
   2 # encoding: utf-8
   3 # Thomas Nagy, 2006-2018 (ita)
   4 # Ralf Habacker, 2006 (rh)
   5 # Yinon Ehrlich, 2009
   6
   7 """
   8 gcc/llvm detection.
   9 """
  10
  11 from waflib.Tools import ccroot, ar
  12 from waflib.Configure import conf
  13
  14 @conf
  15 def find_gcc(conf):
  16         """
  17         Find the program gcc, and if present, try to detect its version number
  18         """
  19         cc = conf.find_program(['gcc', 'cc'], var='CC')
  20         conf.get_cc_version(cc, gcc=True)
  21         conf.env.CC_NAME = 'gcc'
  22
  23 @conf
  24 def gcc_common_flags(conf):
  25         """
  26         Common flags for gcc on nearly all platforms
  27         """
  28         v = conf.env
  29
  30         v.CC_SRC_F            = []
  31         v.CC_TGT_F            = ['-c', '-o']
  32
  33         if not v.LINK_CC:
  34                 v.LINK_CC = v.CC
  35
  36         v.CCLNK_SRC_F         = []
  37         v.CCLNK_TGT_F         = ['-o']
  38         v.CPPPATH_ST          = '-I%s'
  39         v.DEFINES_ST          = '-D%s'
  40
  41         v.LIB_ST              = '-l%s' # template for adding libs
  42         v.LIBPATH_ST          = '-L%s' # template for adding libpaths
  43         v.STLIB_ST            = '-l%s'
  44         v.STLIBPATH_ST        = '-L%s'
  45         v.RPATH_ST            = '-Wl,-rpath,%s'
  46
  47         v.SONAME_ST           = '-Wl,-h,%s'
  48         v.SHLIB_MARKER        = '-Wl,-Bdynamic'
  49         v.STLIB_MARKER        = '-Wl,-Bstatic'
  50
  51         v.cprogram_PATTERN    = '%s'
  52
  53         v.CFLAGS_cshlib       = ['-fPIC']
  54         v.LINKFLAGS_cshlib    = ['-shared']
  55         v.cshlib_PATTERN      = 'lib%s.so'
  56
  57         v.LINKFLAGS_cstlib    = ['-Wl,-Bstatic']
  58         v.cstlib_PATTERN      = 'lib%s.a'
  59
  60         v.LINKFLAGS_MACBUNDLE = ['-bundle', '-undefined', 'dynamic_lookup']
  61         v.CFLAGS_MACBUNDLE    = ['-fPIC']
  62         v.macbundle_PATTERN   = '%s.bundle'
  63
  64 @conf
  65 def gcc_modifier_win32(conf):
  66         """Configuration flags for executing gcc on Windows"""
  67         v = conf.env
  68         v.cprogram_PATTERN    = '%s.exe'
  69
  70         v.cshlib_PATTERN      = '%s.dll'
  71         v.implib_PATTERN      = '%s.dll.a'
  72         v.IMPLIB_ST           = '-Wl,--out-implib,%s'
  73
  74         v.CFLAGS_cshlib       = []
  75
  76         # Auto-import is enabled by default even without this option,
  77         # but enabling it explicitly has the nice effect of suppressing the rather boring, debug-level messages
  78         # that the linker emits otherwise.
  79         v.append_value('LINKFLAGS', ['-Wl,--enable-auto-import'])
  80
  81 @conf
  82 def gcc_modifier_cygwin(conf):
  83         """Configuration flags for executing gcc on Cygwin"""
  84         gcc_modifier_win32(conf)
  85         v = conf.env
  86         v.cshlib_PATTERN = 'cyg%s.dll'
  87         v.append_value('LINKFLAGS_cshlib', ['-Wl,--enable-auto-image-base'])
  88         v.CFLAGS_cshlib = []
  89
  90 @conf
  91 def gcc_modifier_darwin(conf):
  92         """Configuration flags for executing gcc on MacOS"""
  93         v = conf.env
  94         v.CFLAGS_cshlib       = ['-fPIC']
  95         v.LINKFLAGS_cshlib    = ['-dynamiclib']
  96         v.cshlib_PATTERN      = 'lib%s.dylib'
  97         v.FRAMEWORKPATH_ST    = '-F%s'
  98         v.FRAMEWORK_ST        = ['-framework']
  99         v.ARCH_ST             = ['-arch']
 100
 101         v.LINKFLAGS_cstlib    = []
 102
 103         v.SHLIB_MARKER        = []
 104         v.STLIB_MARKER        = []
 105         v.SONAME_ST           = []
 106
 107 @conf
 108 def gcc_modifier_aix(conf):
 109         """Configuration flags for executing gcc on AIX"""
 110         v = conf.env
 111         v.LINKFLAGS_cprogram  = ['-Wl,-brtl']
 112         v.LINKFLAGS_cshlib    = ['-shared','-Wl,-brtl,-bexpfull']
 113         v.SHLIB_MARKER        = []
 114
 115 @conf
 116 def gcc_modifier_hpux(conf):
 117         v = conf.env
 118         v.SHLIB_MARKER        = []
 119         v.STLIB_MARKER        = []
 120         v.CFLAGS_cshlib       = ['-fPIC','-DPIC']
 121         v.cshlib_PATTERN      = 'lib%s.sl'
 122
 123 @conf
 124 def gcc_modifier_openbsd(conf):
 125         conf.env.SONAME_ST = []
 126
 127 @conf
 128 def gcc_modifier_osf1V(conf):
 129         v = conf.env
 130         v.SHLIB_MARKER        = []
 131         v.STLIB_MARKER        = []
 132         v.SONAME_ST           = []
 133
 134 @conf
 135 def gcc_modifier_platform(conf):
 136         """Execute platform-specific functions based on *gcc_modifier_+NAME*"""
 137         # * set configurations specific for a platform.
 138         # * the destination platform is detected automatically by looking at the macros the compiler predefines,
 139         #   and if it's not recognised, it fallbacks to sys.platform.
 140         gcc_modifier_func = getattr(conf, 'gcc_modifier_' + conf.env.DEST_OS, None)
 141         if gcc_modifier_func:
 142                 gcc_modifier_func()
 143
 144 def configure(conf):
 145         """
 146         Configuration for gcc
 147         """
 148         conf.find_gcc()
 149         conf.find_ar()
 150         conf.gcc_common_flags()
 151         conf.gcc_modifier_platform()
 152         conf.cc_load_tools()
 153         conf.cc_add_flags()
 154         conf.link_add_flags()
 155         conf.check_gcc_o_space()
 156