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
|
/* Support for dynamic loading of extension modules */
#include "dl.h"
#include <errno.h>
#include "Python.h"
#include "importdl.h"
#if defined(__hp9000s300)
#define FUNCNAME_PATTERN "_%.20s_%.200s"
#else
#define FUNCNAME_PATTERN "%.20s_%.200s"
#endif
const char *_PyImport_DynLoadFiletab[] = {SHLIB_EXT, NULL};
dl_funcptr _PyImport_FindSharedFuncptr(const char *prefix,
const char *shortname,
const char *pathname, FILE *fp)
{
dl_funcptr p;
shl_t lib;
int flags;
char funcname[258];
flags = BIND_FIRST | BIND_DEFERRED;
if (Py_VerboseFlag) {
flags = BIND_FIRST | BIND_IMMEDIATE |
BIND_NONFATAL | BIND_VERBOSE;
printf("shl_load %s\n",pathname);
}
lib = shl_load(pathname, flags, 0);
/* XXX Chuck Blake once wrote that 0 should be BIND_NOSTART? */
if (lib == NULL) {
char buf[256];
PyObject *pathname_ob = NULL;
PyObject *buf_ob = NULL;
PyObject *shortname_ob = NULL;
if (Py_VerboseFlag)
perror(pathname);
PyOS_snprintf(buf, sizeof(buf), "Failed to load %.200s",
pathname);
buf_ob = PyUnicode_FromString(buf);
shortname_ob = PyUnicode_FromString(shortname);
pathname_ob = PyUnicode_FromString(pathname);
PyErr_SetImportError(buf_ob, shortname_ob, pathname_ob);
Py_DECREF(buf_ob);
Py_DECREF(shortname_ob);
Py_DECREF(pathname_ob);
return NULL;
}
PyOS_snprintf(funcname, sizeof(funcname), FUNCNAME_PATTERN,
prefix, shortname);
if (Py_VerboseFlag)
printf("shl_findsym %s\n", funcname);
if (shl_findsym(&lib, funcname, TYPE_UNDEFINED, (void *) &p) == -1) {
shl_unload(lib);
p = NULL;
}
if (p == NULL && Py_VerboseFlag)
perror(funcname);
return p;
}
|
