cpython / Python / dynload_hpux.c

/* 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 "_init%.200s"
#else
#define FUNCNAME_PATTERN "init%.200s"
#endif

const struct filedescr _PyImport_DynLoadFiletab[] = {
	{SHLIB_EXT, "rb", C_EXTENSION},
	{"module"SHLIB_EXT, "rb", C_EXTENSION},
	{0, 0}
};

dl_funcptr _PyImport_GetDynLoadFunc(const char *fqname, 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];
		if (Py_VerboseFlag)
			perror(pathname);
		PyOS_snprintf(buf, sizeof(buf), "Failed to load %.200s",
			      pathname);
		PyErr_SetString(PyExc_ImportError, buf);
		return NULL;
	}
	PyOS_snprintf(funcname, sizeof(funcname), FUNCNAME_PATTERN, 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;
}
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