l4/pkg/python/contrib/Python/dynload_hpux.c

   1
   2 /* Support for dynamic loading of extension modules */
   3
   4 #include "dl.h"
   5 #include <errno.h>
   6
   7 #include "Python.h"
   8 #include "importdl.h"
   9
  10 #if defined(__hp9000s300)
  11 #define FUNCNAME_PATTERN "_init%.200s"
  12 #else
  13 #define FUNCNAME_PATTERN "init%.200s"
  14 #endif
  15
  16 const struct filedescr _PyImport_DynLoadFiletab[] = {
  17         {SHLIB_EXT, "rb", C_EXTENSION},
  18         {"module"SHLIB_EXT, "rb", C_EXTENSION},
  19         {0, 0}
  20 };
  21
  22 dl_funcptr _PyImport_GetDynLoadFunc(const char *fqname, const char *shortname,
  23                                     const char *pathname, FILE *fp)
  24 {
  25         dl_funcptr p;
  26         shl_t lib;
  27         int flags;
  28         char funcname[258];
  29
  30         flags = BIND_FIRST | BIND_DEFERRED;
  31         if (Py_VerboseFlag) {
  32                 flags = BIND_FIRST | BIND_IMMEDIATE |
  33                         BIND_NONFATAL | BIND_VERBOSE;
  34                 printf("shl_load %s\n",pathname);
  35         }
  36         lib = shl_load(pathname, flags, 0);
  37         /* XXX Chuck Blake once wrote that 0 should be BIND_NOSTART? */
  38         if (lib == NULL) {
  39                 char buf[256];
  40                 if (Py_VerboseFlag)
  41                         perror(pathname);
  42                 PyOS_snprintf(buf, sizeof(buf), "Failed to load %.200s",
  43                               pathname);
  44                 PyErr_SetString(PyExc_ImportError, buf);
  45                 return NULL;
  46         }
  47         PyOS_snprintf(funcname, sizeof(funcname), FUNCNAME_PATTERN, shortname);
  48         if (Py_VerboseFlag)
  49                 printf("shl_findsym %s\n", funcname);
  50         if (shl_findsym(&lib, funcname, TYPE_UNDEFINED, (void *) &p) == -1) {
  51                 shl_unload(lib);
  52                 p = NULL;
  53         }
  54         if (p == NULL && Py_VerboseFlag)
  55                 perror(funcname);
  56
  57         return p;
  58 }