media/webrtc/trunk/build/compiler_version.py@6474c204b198 (annotated)
media/webrtc/trunk/build/compiler_version.py
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rwxr-xr-x
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | #!/usr/bin/env python |
| michael@0 | 2 | # Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| michael@0 | 3 | # Use of this source code is governed by a BSD-style license that can be |
| michael@0 | 4 | # found in the LICENSE file. |
| michael@0 | 5 | |
| michael@0 | 6 | """Compiler version checking tool for gcc |
| michael@0 | 7 | |
| michael@0 | 8 | Print gcc version as XY if you are running gcc X.Y.*. |
| michael@0 | 9 | This is used to tweak build flags for gcc 4.4. |
| michael@0 | 10 | """ |
| michael@0 | 11 | |
| michael@0 | 12 | import os |
| michael@0 | 13 | import re |
| michael@0 | 14 | import subprocess |
| michael@0 | 15 | import sys |
| michael@0 | 16 | |
| michael@0 | 17 | def GetVersion(compiler): |
| michael@0 | 18 | try: |
| michael@0 | 19 | # Note that compiler could be something tricky like "distcc g++". |
| michael@0 | 20 | compiler = compiler + " -dumpversion" |
| michael@0 | 21 | pipe = subprocess.Popen(compiler, shell=True, |
| michael@0 | 22 | stdout=subprocess.PIPE, stderr=subprocess.PIPE) |
| michael@0 | 23 | gcc_output, gcc_error = pipe.communicate() |
| michael@0 | 24 | if pipe.returncode: |
| michael@0 | 25 | raise subprocess.CalledProcessError(pipe.returncode, compiler) |
| michael@0 | 26 | |
| michael@0 | 27 | result = re.match(r"(\d+)\.(\d+)", gcc_output) |
| michael@0 | 28 | return result.group(1) + result.group(2) |
| michael@0 | 29 | except Exception, e: |
| michael@0 | 30 | if gcc_error: |
| michael@0 | 31 | sys.stderr.write(gcc_error) |
| michael@0 | 32 | print >> sys.stderr, "compiler_version.py failed to execute:", compiler |
| michael@0 | 33 | print >> sys.stderr, e |
| michael@0 | 34 | return "" |
| michael@0 | 35 | |
| michael@0 | 36 | def GetVersionFromEnvironment(compiler_env): |
| michael@0 | 37 | """ Returns the version of compiler |
| michael@0 | 38 | |
| michael@0 | 39 | If the compiler was set by the given environment variable and exists, |
| michael@0 | 40 | return its version, otherwise None is returned. |
| michael@0 | 41 | """ |
| michael@0 | 42 | cxx = os.getenv(compiler_env, None) |
| michael@0 | 43 | if cxx: |
| michael@0 | 44 | cxx_version = GetVersion(cxx) |
| michael@0 | 45 | if cxx_version != "": |
| michael@0 | 46 | return cxx_version |
| michael@0 | 47 | return None |
| michael@0 | 48 | |
| michael@0 | 49 | def main(): |
| michael@0 | 50 | # Check if CXX_target or CXX environment variable exists an if it does use |
| michael@0 | 51 | # that compiler. |
| michael@0 | 52 | # TODO: Fix ninja (see http://crbug.com/140900) instead and remove this code |
| michael@0 | 53 | # In ninja's cross compile mode, the CXX_target is target compiler, while |
| michael@0 | 54 | # the CXX is host. The CXX_target needs be checked first, though the target |
| michael@0 | 55 | # and host compiler have different version, there seems no issue to use the |
| michael@0 | 56 | # target compiler's version number as gcc_version in Android. |
| michael@0 | 57 | cxx_version = GetVersionFromEnvironment("CXX_target") |
| michael@0 | 58 | if cxx_version: |
| michael@0 | 59 | print cxx_version |
| michael@0 | 60 | return 0 |
| michael@0 | 61 | |
| michael@0 | 62 | cxx_version = GetVersionFromEnvironment("CXX") |
| michael@0 | 63 | if cxx_version: |
| michael@0 | 64 | print cxx_version |
| michael@0 | 65 | return 0 |
| michael@0 | 66 | |
| michael@0 | 67 | # Otherwise we check the g++ version. |
| michael@0 | 68 | gccversion = GetVersion("g++") |
| michael@0 | 69 | if gccversion != "": |
| michael@0 | 70 | print gccversion |
| michael@0 | 71 | return 0 |
| michael@0 | 72 | |
| michael@0 | 73 | return 1 |
| michael@0 | 74 | |
| michael@0 | 75 | if __name__ == "__main__": |
| michael@0 | 76 | sys.exit(main()) |
