diff options
author | David Robillard <d@drobilla.net> | 2018-09-15 14:51:02 +0200 |
---|---|---|
committer | David Robillard <d@drobilla.net> | 2018-09-15 14:51:02 +0200 |
commit | eede9648d50c3750f6f8d1319a79dd76d7f10b55 (patch) | |
tree | ff0760d5f3f0e994413c8c1dff7a4fed37914bee /Tools/c_tests.py | |
download | ingen-eede9648d50c3750f6f8d1319a79dd76d7f10b55.tar.gz ingen-eede9648d50c3750f6f8d1319a79dd76d7f10b55.tar.bz2 ingen-eede9648d50c3750f6f8d1319a79dd76d7f10b55.zip |
Squashed 'waflib/' content from commit 982416b8
git-subtree-dir: waflib
git-subtree-split: 982416b8a6c6728e200243e1be3ab60435c08830
Diffstat (limited to 'Tools/c_tests.py')
-rw-r--r-- | Tools/c_tests.py | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/Tools/c_tests.py b/Tools/c_tests.py new file mode 100644 index 00000000..f858df57 --- /dev/null +++ b/Tools/c_tests.py @@ -0,0 +1,229 @@ +#!/usr/bin/env python +# encoding: utf-8 +# Thomas Nagy, 2016-2018 (ita) + +""" +Various configuration tests. +""" + +from waflib import Task +from waflib.Configure import conf +from waflib.TaskGen import feature, before_method, after_method + +LIB_CODE = ''' +#ifdef _MSC_VER +#define testEXPORT __declspec(dllexport) +#else +#define testEXPORT +#endif +testEXPORT int lib_func(void) { return 9; } +''' + +MAIN_CODE = ''' +#ifdef _MSC_VER +#define testEXPORT __declspec(dllimport) +#else +#define testEXPORT +#endif +testEXPORT int lib_func(void); +int main(int argc, char **argv) { + (void)argc; (void)argv; + return !(lib_func() == 9); +} +''' + +@feature('link_lib_test') +@before_method('process_source') +def link_lib_test_fun(self): + """ + The configuration test :py:func:`waflib.Configure.run_build` declares a unique task generator, + so we need to create other task generators from here to check if the linker is able to link libraries. + """ + def write_test_file(task): + task.outputs[0].write(task.generator.code) + + rpath = [] + if getattr(self, 'add_rpath', False): + rpath = [self.bld.path.get_bld().abspath()] + + mode = self.mode + m = '%s %s' % (mode, mode) + ex = self.test_exec and 'test_exec' or '' + bld = self.bld + bld(rule=write_test_file, target='test.' + mode, code=LIB_CODE) + bld(rule=write_test_file, target='main.' + mode, code=MAIN_CODE) + bld(features='%sshlib' % m, source='test.' + mode, target='test') + bld(features='%sprogram %s' % (m, ex), source='main.' + mode, target='app', use='test', rpath=rpath) + +@conf +def check_library(self, mode=None, test_exec=True): + """ + Checks if libraries can be linked with the current linker. Uses :py:func:`waflib.Tools.c_tests.link_lib_test_fun`. + + :param mode: c or cxx or d + :type mode: string + """ + if not mode: + mode = 'c' + if self.env.CXX: + mode = 'cxx' + self.check( + compile_filename = [], + features = 'link_lib_test', + msg = 'Checking for libraries', + mode = mode, + test_exec = test_exec) + +######################################################################################## + +INLINE_CODE = ''' +typedef int foo_t; +static %s foo_t static_foo () {return 0; } +%s foo_t foo () { + return 0; +} +''' +INLINE_VALUES = ['inline', '__inline__', '__inline'] + +@conf +def check_inline(self, **kw): + """ + Checks for the right value for inline macro. + Define INLINE_MACRO to 1 if the define is found. + If the inline macro is not 'inline', add a define to the ``config.h`` (#define inline __inline__) + + :param define_name: define INLINE_MACRO by default to 1 if the macro is defined + :type define_name: string + :param features: by default *c* or *cxx* depending on the compiler present + :type features: list of string + """ + self.start_msg('Checking for inline') + + if not 'define_name' in kw: + kw['define_name'] = 'INLINE_MACRO' + if not 'features' in kw: + if self.env.CXX: + kw['features'] = ['cxx'] + else: + kw['features'] = ['c'] + + for x in INLINE_VALUES: + kw['fragment'] = INLINE_CODE % (x, x) + + try: + self.check(**kw) + except self.errors.ConfigurationError: + continue + else: + self.end_msg(x) + if x != 'inline': + self.define('inline', x, quote=False) + return x + self.fatal('could not use inline functions') + +######################################################################################## + +LARGE_FRAGMENT = '''#include <unistd.h> +int main(int argc, char **argv) { + (void)argc; (void)argv; + return !(sizeof(off_t) >= 8); +} +''' + +@conf +def check_large_file(self, **kw): + """ + Checks for large file support and define the macro HAVE_LARGEFILE + The test is skipped on win32 systems (DEST_BINFMT == pe). + + :param define_name: define to set, by default *HAVE_LARGEFILE* + :type define_name: string + :param execute: execute the test (yes by default) + :type execute: bool + """ + if not 'define_name' in kw: + kw['define_name'] = 'HAVE_LARGEFILE' + if not 'execute' in kw: + kw['execute'] = True + + if not 'features' in kw: + if self.env.CXX: + kw['features'] = ['cxx', 'cxxprogram'] + else: + kw['features'] = ['c', 'cprogram'] + + kw['fragment'] = LARGE_FRAGMENT + + kw['msg'] = 'Checking for large file support' + ret = True + try: + if self.env.DEST_BINFMT != 'pe': + ret = self.check(**kw) + except self.errors.ConfigurationError: + pass + else: + if ret: + return True + + kw['msg'] = 'Checking for -D_FILE_OFFSET_BITS=64' + kw['defines'] = ['_FILE_OFFSET_BITS=64'] + try: + ret = self.check(**kw) + except self.errors.ConfigurationError: + pass + else: + self.define('_FILE_OFFSET_BITS', 64) + return ret + + self.fatal('There is no support for large files') + +######################################################################################## + +ENDIAN_FRAGMENT = ''' +short int ascii_mm[] = { 0x4249, 0x4765, 0x6E44, 0x6961, 0x6E53, 0x7953, 0 }; +short int ascii_ii[] = { 0x694C, 0x5454, 0x656C, 0x6E45, 0x6944, 0x6E61, 0 }; +int use_ascii (int i) { + return ascii_mm[i] + ascii_ii[i]; +} +short int ebcdic_ii[] = { 0x89D3, 0xE3E3, 0x8593, 0x95C5, 0x89C4, 0x9581, 0 }; +short int ebcdic_mm[] = { 0xC2C9, 0xC785, 0x95C4, 0x8981, 0x95E2, 0xA8E2, 0 }; +int use_ebcdic (int i) { + return ebcdic_mm[i] + ebcdic_ii[i]; +} +extern int foo; +''' + +class grep_for_endianness(Task.Task): + """ + Task that reads a binary and tries to determine the endianness + """ + color = 'PINK' + def run(self): + txt = self.inputs[0].read(flags='rb').decode('latin-1') + if txt.find('LiTTleEnDian') > -1: + self.generator.tmp.append('little') + elif txt.find('BIGenDianSyS') > -1: + self.generator.tmp.append('big') + else: + return -1 + +@feature('grep_for_endianness') +@after_method('process_source') +def grep_for_endianness_fun(self): + """ + Used by the endianness configuration test + """ + self.create_task('grep_for_endianness', self.compiled_tasks[0].outputs[0]) + +@conf +def check_endianness(self): + """ + Executes a configuration test to determine the endianness + """ + tmp = [] + def check_msg(self): + return tmp[0] + self.check(fragment=ENDIAN_FRAGMENT, features='c grep_for_endianness', + msg='Checking for endianness', define='ENDIANNESS', tmp=tmp, okmsg=check_msg) + return tmp[0] + |