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Cache context.sconf.Define

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Kp 2016-08-13 22:20:13 +00:00
parent 1cb62b1815
commit 1ca0dacb6c
1 changed files with 26 additions and 16 deletions
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42
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@ -722,6 +722,7 @@ int main(int argc,char**argv){(void)argc;(void)argv;
d = successflags.get('CPPDEFINES', None)
if d:
append_CPPDEFINE = f['CPPDEFINES'].append
Define = context.sconf.Define
for v in d:
# v is 'NAME' for -DNAME
# v is ('NAME', 'VALUE') for -DNAME=VALUE
@ -731,7 +732,7 @@ int main(int argc,char**argv){(void)argc;(void)argv;
# configuration header.
append_CPPDEFINE(v)
continue
context.sconf.Define(d[0], d[1])
Define(d[0], d[1])
else:
env_flags.restore(context.env)
self._sconf_results.append((calling_function, r))
@ -976,13 +977,15 @@ void a()__attribute__((%s("a called")));
''' % __attribute__
macro_name = '__attribute_%s(M)' % attribute
Compile = self.Compile
Define = context.sconf.Define
if Compile(context, text=f, main='if("0"[0]==\'1\')a();', msg='whether compiler optimizes function __attribute__((%s))' % __attribute__):
context.sconf.Define('DXX_HAVE_ATTRIBUTE_%s' % attribute.upper())
context.sconf.Define(macro_name, '__attribute__((%s(M)))' % __attribute__)
Define('DXX_HAVE_ATTRIBUTE_%s' % attribute.upper())
macro_value = '__attribute__((%s(M)))' % __attribute__
else:
Compile(context, text=f, msg='whether compiler accepts function __attribute__((%s))' % __attribute__) and \
Compile(context, text=f, main='a();', msg='whether compiler understands function __attribute__((%s))' % __attribute__, expect_failure=True)
context.sconf.Define(macro_name, self.comment_not_supported)
macro_value = self.comment_not_supported
Define(macro_name, macro_value)
@_custom_test
def check_builtin_bswap(self,context,
_main='''
@ -1045,13 +1048,18 @@ static int a(int b){
}
'''
main = 'return a(1) + a(2)'
Define = context.sconf.Define
if self.Link(context, text=f % 'c(b)', main=main, msg='whether compiler optimizes __builtin_constant_p'):
context.sconf.Define('DXX_HAVE_BUILTIN_CONSTANT_P')
context.sconf.Define('dxx_builtin_constant_p(A)', '__builtin_constant_p(A)')
context.sconf.Define('DXX_CONSTANT_TRUE(E)', '(__builtin_constant_p((E)) && (E))')
Define('DXX_HAVE_BUILTIN_CONSTANT_P')
Define('DXX_CONSTANT_TRUE(E)', '(__builtin_constant_p((E)) && (E))')
dxx_builtin_constant_p = '__builtin_constant_p(A)'
else:
# This is present because it may be useful to see in the
# debug log. It is not expected to modify the build
# environment.
self.Compile(context, text=f % '2', main=main, msg='whether compiler accepts __builtin_constant_p')
context.sconf.Define('dxx_builtin_constant_p(A)', '((void)(A),0)')
dxx_builtin_constant_p = '((void)(A),0)'
Define('dxx_builtin_constant_p(A)', dxx_builtin_constant_p)
@_custom_test
def check_builtin_expect(self,context):
"""
@ -1069,12 +1077,13 @@ which path should be considered hot.
return __builtin_expect(argc == 1, 1) ? 1 : 0;
'''
if self.Compile(context, text='', main=main, msg='whether compiler accepts __builtin_expect'):
context.sconf.Define('likely(A)', '__builtin_expect(!!(A), 1)')
context.sconf.Define('unlikely(A)', '__builtin_expect(!!(A), 0)')
likely = '__builtin_expect(!!(A), 1)'
unlikely = '__builtin_expect(!!(A), 0)'
else:
macro_value = '(!!(A))'
context.sconf.Define('likely(A)', macro_value)
context.sconf.Define('unlikely(A)', macro_value)
likely = unlikely = '(!!(A))'
Define = context.sconf.Define
Define('likely(A)', likely)
Define('unlikely(A)', unlikely)
@_custom_test
def check_builtin_file(self,context):
if self.Compile(context, text='''
@ -1135,9 +1144,10 @@ available.
return ({ 1 + 2; });
'''
t = _compound_statement_native if self.Compile(context, text='', main=f, msg='whether compiler understands embedded compound statements') else _compound_statement_emulated
context.sconf.Define('DXX_BEGIN_COMPOUND_STATEMENT', t[0])
context.sconf.Define('DXX_END_COMPOUND_STATEMENT', t[1])
context.sconf.Define('DXX_ALWAYS_ERROR_FUNCTION(F,S)', r'( DXX_BEGIN_COMPOUND_STATEMENT { \
Define = context.sconf.Define
Define('DXX_BEGIN_COMPOUND_STATEMENT', t[0])
Define('DXX_END_COMPOUND_STATEMENT', t[1])
Define('DXX_ALWAYS_ERROR_FUNCTION(F,S)', r'( DXX_BEGIN_COMPOUND_STATEMENT { \
void F() __attribute_error(S); \
F(); \
} DXX_END_COMPOUND_STATEMENT )', '''