building.py: add clang static analyzer support

It adds the '--clang-analyzer' option that could invoke clang as the
static code checker. It is recommanded to work with 'scan-build' shipped
with Clang. For example, `scan-build scons --clang-analyzer`.
This commit is contained in:
Grissiom 2013-07-09 19:55:14 +08:00
parent 4f0cb88739
commit 34027e65e3
1 changed files with 31 additions and 0 deletions

View File

@ -88,6 +88,31 @@ def PrepareBuilding(env, root_directory, has_libcpu=False, remove_components = [
action='store_true',
default=False,
help='Build Cscope cross reference database. Requires cscope installed.')
AddOption('--clang-analyzer',
dest='clang-analyzer',
action='store_true',
default=False,
help='Perform static analyze with Clang-analyzer. '+\
'Requires Clang installed.\n'+\
'It is recommended to use with scan-build like this:\n'+\
'`scan-build scons --clang-analyzer`\n'+\
'If things goes well, scan-build will instruct you to invoke scan-view.')
if GetOption('clang-analyzer'):
# perform what scan-build does
env.Replace(
CC = 'ccc-analyzer',
CXX = 'c++-analyzer',
# skip as and link
LINK = 'true',
AS = 'true',)
env["ENV"].update(x for x in os.environ.items() if x[0].startswith("CCC_"))
# only check, don't compile. ccc-analyzer use CCC_CC as the CC.
env['ENV']['CCC_CC'] = 'true'
env['ENV']['CCC_CXX'] = 'true'
# remove the POST_ACTION as it will cause meaningless errors(file not
# found or something like that).
rtconfig.POST_ACTION = ''
# add build library option
AddOption('--buildlib',
@ -109,6 +134,12 @@ def PrepareBuilding(env, root_directory, has_libcpu=False, remove_components = [
'cb':('keil', 'armcc')}
tgt_name = GetOption('target')
if tgt_name:
# --target will change the toolchain settings which clang-analyzer is
# depend on
if GetOption('clang-analyzer'):
print '--clang-analyzer cannot be used with --target'
sys.exit(1)
SetOption('no_exec', 1)
try:
rtconfig.CROSS_TOOL, rtconfig.PLATFORM = tgt_dict[tgt_name]