1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
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]
|
