kbr@chromium.org | f2ba759 | 2013-06-14 05:29:08 +0000 | [diff] [blame] | 1 | ####################################################################### |
| 2 | # Top-level SConstruct |
| 3 | # |
| 4 | # For example, invoke scons as |
| 5 | # |
| 6 | # scons build=debug llvm=yes machine=x86 |
| 7 | # |
| 8 | # to set configuration variables. Or you can write those options to a file |
| 9 | # named config.py: |
| 10 | # |
| 11 | # # config.py |
| 12 | # build='debug' |
| 13 | # llvm=True |
| 14 | # machine='x86' |
| 15 | # |
| 16 | # Invoke |
| 17 | # |
| 18 | # scons -h |
| 19 | # |
| 20 | # to get the full list of options. See scons manpage for more info. |
| 21 | # |
| 22 | |
| 23 | import os |
| 24 | import os.path |
| 25 | import sys |
| 26 | import SCons.Util |
| 27 | |
| 28 | import common |
| 29 | |
| 30 | ####################################################################### |
| 31 | # Configuration options |
| 32 | |
| 33 | opts = Variables('config.py') |
| 34 | common.AddOptions(opts) |
| 35 | |
| 36 | env = Environment( |
| 37 | options = opts, |
| 38 | tools = ['gallium'], |
| 39 | toolpath = ['#scons'], |
| 40 | ENV = os.environ, |
| 41 | ) |
| 42 | |
| 43 | # XXX: This creates a many problems as it saves... |
| 44 | #opts.Save('config.py', env) |
| 45 | |
| 46 | # Backwards compatability with old target configuration variable |
| 47 | try: |
| 48 | targets = ARGUMENTS['targets'] |
| 49 | except KeyError: |
| 50 | pass |
| 51 | else: |
| 52 | targets = targets.split(',') |
| 53 | print 'scons: warning: targets option is deprecated; pass the targets on their own such as' |
| 54 | print |
| 55 | print ' scons %s' % ' '.join(targets) |
| 56 | print |
| 57 | COMMAND_LINE_TARGETS.append(targets) |
| 58 | |
| 59 | |
| 60 | Help(opts.GenerateHelpText(env)) |
| 61 | |
| 62 | # fail early for a common error on windows |
| 63 | if env['gles']: |
| 64 | try: |
| 65 | import libxml2 |
| 66 | except ImportError: |
| 67 | raise SCons.Errors.UserError, "GLES requires libxml2-python to build" |
| 68 | |
| 69 | ####################################################################### |
| 70 | # Environment setup |
| 71 | |
| 72 | # Includes |
| 73 | env.Prepend(CPPPATH = [ |
| 74 | '#/include', |
| 75 | ]) |
| 76 | env.Append(CPPPATH = [ |
| 77 | '#/src/gallium/include', |
| 78 | '#/src/gallium/auxiliary', |
| 79 | '#/src/gallium/drivers', |
| 80 | '#/src/gallium/winsys', |
| 81 | ]) |
| 82 | |
| 83 | if env['msvc']: |
| 84 | env.Append(CPPPATH = ['#include/c99']) |
| 85 | |
| 86 | # for debugging |
| 87 | #print env.Dump() |
| 88 | |
| 89 | |
| 90 | ####################################################################### |
| 91 | # Invoke host SConscripts |
| 92 | # |
| 93 | # For things that are meant to be run on the native host build machine, instead |
| 94 | # of the target machine. |
| 95 | # |
| 96 | |
| 97 | # Create host environent |
| 98 | if env['crosscompile'] and not env['embedded']: |
| 99 | host_env = Environment( |
| 100 | options = opts, |
| 101 | # no tool used |
| 102 | tools = [], |
| 103 | toolpath = ['#scons'], |
| 104 | ENV = os.environ, |
| 105 | ) |
| 106 | |
| 107 | # Override options |
| 108 | host_env['platform'] = common.host_platform |
| 109 | host_env['machine'] = common.host_machine |
| 110 | host_env['toolchain'] = 'default' |
| 111 | host_env['llvm'] = False |
| 112 | |
| 113 | host_env.Tool('gallium') |
| 114 | |
| 115 | host_env['hostonly'] = True |
| 116 | assert host_env['crosscompile'] == False |
| 117 | |
| 118 | if host_env['msvc']: |
| 119 | host_env.Append(CPPPATH = ['#include/c99']) |
| 120 | |
| 121 | target_env = env |
| 122 | env = host_env |
| 123 | Export('env') |
| 124 | |
| 125 | SConscript( |
| 126 | 'src/SConscript', |
| 127 | variant_dir = host_env['build_dir'], |
| 128 | duplicate = 0, # http://www.scons.org/doc/0.97/HTML/scons-user/x2261.html |
| 129 | ) |
| 130 | |
| 131 | env = target_env |
| 132 | |
| 133 | Export('env') |
| 134 | |
| 135 | ####################################################################### |
| 136 | # Invoke SConscripts |
| 137 | |
| 138 | # TODO: Build several variants at the same time? |
| 139 | # http://www.scons.org/wiki/SimultaneousVariantBuilds |
| 140 | |
| 141 | SConscript( |
| 142 | 'src/SConscript', |
| 143 | variant_dir = env['build_dir'], |
| 144 | duplicate = 0 # http://www.scons.org/doc/0.97/HTML/scons-user/x2261.html |
| 145 | ) |
| 146 | |
| 147 | |
| 148 | ######################################################################## |
| 149 | # List all aliases |
| 150 | |
| 151 | try: |
| 152 | from SCons.Node.Alias import default_ans |
| 153 | except ImportError: |
| 154 | pass |
| 155 | else: |
| 156 | aliases = default_ans.keys() |
| 157 | aliases.sort() |
| 158 | env.Help('\n') |
| 159 | env.Help('Recognized targets:\n') |
| 160 | for alias in aliases: |
| 161 | env.Help(' %s\n' % alias) |