test/LoadableModule.py

   1 #!/usr/bin/env python
   2 #
   3 # __COPYRIGHT__
   4 #
   5 # Permission is hereby granted, free of charge, to any person obtaining
   6 # a copy of this software and associated documentation files (the
   7 # "Software"), to deal in the Software without restriction, including
   8 # without limitation the rights to use, copy, modify, merge, publish,
   9 # distribute, sublicense, and/or sell copies of the Software, and to
  10 # permit persons to whom the Software is furnished to do so, subject to
  11 # the following conditions:
  12 #
  13 # The above copyright notice and this permission notice shall be included
  14 # in all copies or substantial portions of the Software.
  15 #
  16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
  17 # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
  18 # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  19 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  20 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  21 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  22 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23 #
  24
  25 __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
  26
  27 import os
  28 import sys
  29
  30 import TestCmd
  31 import TestSCons
  32
  33 dll_ = TestSCons.dll_
  34 _dll = TestSCons._dll
  35
  36 test = TestSCons.TestSCons()
  37
  38 # Some systems apparently need -ldl on the link line, others don't.
  39 no_dl_lib = "env.Program(target = 'dlopenprog', source = 'dlopenprog.c')"
  40 use_dl_lib = "env.Program(target = 'dlopenprog', source = 'dlopenprog.c', LIBS=['dl'])"
  41
  42 dlopen_line = {
  43     'darwin' : no_dl_lib,
  44     'freebsd4' : no_dl_lib,
  45     'linux2' : use_dl_lib,
  46     'linux3' : use_dl_lib,
  47 }
  48 platforms_with_dlopen = list(dlopen_line.keys())
  49
  50 test.write('SConstruct', """
  51 env = Environment()
  52 # dlopenprog tries to dynamically load foo1 at runtime using dlopen().
  53 env.LoadableModule(target = 'foo1', source = 'f1.c')
  54 """ + dlopen_line.get(sys.platform, ''))
  55
  56
  57 test.write('f1.c', r"""
  58 #include <stdio.h>
  59
  60 void
  61 f1(void)
  62 {
  63         printf("f1.c\n");
  64         fflush(stdout);
  65 }
  66 """)
  67
  68 dlopenprog = r"""
  69 #include <errno.h>
  70 #include <stdio.h>
  71 #include <dlfcn.h>
  72
  73 extern int errno;
  74
  75 int
  76 main(int argc, char *argv[])
  77 {
  78         argv[argc++] = "--";
  79         void *foo1_shobj = dlopen("__foo1_name__", RTLD_NOW);
  80         if(!foo1_shobj){
  81           printf("Error loading foo1 '__foo1_name__' library at runtime, exiting.\n");
  82           printf("%d\n", errno);
  83           perror("");
  84           return -1;
  85         }
  86         void (*f1)() = dlsym(foo1_shobj, "f1\0");
  87         (*f1)();
  88         printf("dlopenprog.c\n");
  89         dlclose(foo1_shobj);
  90         return 0;
  91 }
  92 """
  93
  94 # Darwin dlopen()s a bundle named "foo1",
  95 # other systems dlopen() a traditional libfoo1.so file.
  96 foo1_name = {'darwin' : 'foo1'}.get(sys.platform[:6], dll_+'foo1'+_dll)
  97
  98 test.write('dlopenprog.c',
  99            dlopenprog.replace('__foo1_name__', foo1_name))
 100
 101 test.run(arguments = '.',
 102          stderr=TestSCons.noisy_ar,
 103          match=TestSCons.match_re_dotall)
 104
 105 # TODO: Add new Intel-based Macs?  Why are we only picking on Macs?
 106 #if sys.platform.find('darwin') != -1:
 107 #    test.run(program='/usr/bin/file',
 108 #             arguments = "foo1",
 109 #             match = TestCmd.match_re,
 110 #             stdout="foo1: Mach-O bundle (ppc|i386)\n")
 111 # My laptop prints "foo1: Mach-O 64-bit bundle x86_64"
 112
 113 if sys.platform in platforms_with_dlopen:
 114     os.environ['LD_LIBRARY_PATH'] = test.workpath()
 115     test.run(program = test.workpath('dlopenprog'),
 116              stdout = "f1.c\ndlopenprog.c\n")
 117
 118
 119
 120 test.pass_test()
 121
 122 # Local Variables:
 123 # tab-width:4
 124 # indent-tabs-mode:nil
 125 # End:
 126 # vim: set expandtab tabstop=4 shiftwidth=4: