| """build_platform provides various ways of naming the environment we are |
| building under for the purpose of selecting the correct paths and targets. |
| """ |
| |
| import platform |
| |
| def system(): |
| """Returns a canonicalized OS type. Will be one of 'linux' or 'darwin' |
| as Windows is unsupported at the moment.""" |
| sys = platform.system() |
| if sys == 'Linux': |
| return 'linux' |
| if sys == 'Darwin': |
| return 'darwin' |
| raise RuntimeError("Unknown System: " + sys) |
| |
| def prebuilt(): |
| """Returns the prebuilt subdirectory for prebuilts which do not use |
| subarch specialization.""" |
| return system() + '-x86' |
| |
| def prebuilt_full(): |
| """Returns the prebuilt subdirectory for prebuilts which have subarch |
| specialization available. |
| """ |
| return system() + '-x86_64' |
| |
| def triple(): |
| """Returns the target triple of the build environment.""" |
| build_os = system() |
| if build_os == 'linux': |
| return 'x86_64-unknown-linux-gnu' |
| if build_os == 'darwin': |
| return 'x86_64-apple-darwin' |
| raise RuntimeError("Unknown OS: " + build_os) |
