--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Python/dynload_aix.c Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,183 @@
+
+/* Support for dynamic loading of extension modules */
+
+#include "Python.h"
+#include "importdl.h"
+
+#include <ctype.h> /* for isdigit() */
+#include <errno.h> /* for global errno */
+#include <string.h> /* for strerror() */
+#include <stdlib.h> /* for malloc(), free() */
+#include <sys/ldr.h>
+
+
+#ifdef AIX_GENUINE_CPLUSPLUS
+#include "/usr/lpp/xlC/include/load.h"
+#define aix_load loadAndInit
+#else
+#define aix_load load
+#endif
+
+
+extern char *Py_GetProgramName(void);
+
+typedef struct Module {
+ struct Module *next;
+ void *entry;
+} Module, *ModulePtr;
+
+const struct filedescr _PyImport_DynLoadFiletab[] = {
+ {".so", "rb", C_EXTENSION},
+ {"module.so", "rb", C_EXTENSION},
+ {0, 0}
+};
+
+static int
+aix_getoldmodules(void **modlistptr)
+{
+ register ModulePtr modptr, prevmodptr;
+ register struct ld_info *ldiptr;
+ register char *ldibuf;
+ register int errflag, bufsize = 1024;
+ register unsigned int offset;
+ char *progname = Py_GetProgramName();
+
+ /*
+ -- Get the list of loaded modules into ld_info structures.
+ */
+ if ((ldibuf = malloc(bufsize)) == NULL) {
+ PyErr_SetString(PyExc_ImportError, strerror(errno));
+ return -1;
+ }
+ while ((errflag = loadquery(L_GETINFO, ldibuf, bufsize)) == -1
+ && errno == ENOMEM) {
+ free(ldibuf);
+ bufsize += 1024;
+ if ((ldibuf = malloc(bufsize)) == NULL) {
+ PyErr_SetString(PyExc_ImportError, strerror(errno));
+ return -1;
+ }
+ }
+ if (errflag == -1) {
+ PyErr_SetString(PyExc_ImportError, strerror(errno));
+ return -1;
+ }
+ /*
+ -- Make the modules list from the ld_info structures.
+ */
+ ldiptr = (struct ld_info *)ldibuf;
+ prevmodptr = NULL;
+ do {
+ if (strstr(progname, ldiptr->ldinfo_filename) == NULL &&
+ strstr(ldiptr->ldinfo_filename, "python") == NULL) {
+ /*
+ -- Extract only the modules belonging to the main
+ -- executable + those containing "python" as a
+ -- substring (like the "python[version]" binary or
+ -- "libpython[version].a" in case it's a shared lib).
+ */
+ offset = (unsigned int)ldiptr->ldinfo_next;
+ ldiptr = (struct ld_info *)((char*)ldiptr + offset);
+ continue;
+ }
+ if ((modptr = (ModulePtr)malloc(sizeof(Module))) == NULL) {
+ PyErr_SetString(PyExc_ImportError, strerror(errno));
+ while (*modlistptr) {
+ modptr = (ModulePtr)*modlistptr;
+ *modlistptr = (void *)modptr->next;
+ free(modptr);
+ }
+ return -1;
+ }
+ modptr->entry = ldiptr->ldinfo_dataorg;
+ modptr->next = NULL;
+ if (prevmodptr == NULL)
+ *modlistptr = (void *)modptr;
+ else
+ prevmodptr->next = modptr;
+ prevmodptr = modptr;
+ offset = (unsigned int)ldiptr->ldinfo_next;
+ ldiptr = (struct ld_info *)((char*)ldiptr + offset);
+ } while (offset);
+ free(ldibuf);
+ return 0;
+}
+
+
+static void
+aix_loaderror(const char *pathname)
+{
+
+ char *message[1024], errbuf[1024];
+ register int i,j;
+
+ struct errtab {
+ int errNo;
+ char *errstr;
+ } load_errtab[] = {
+ {L_ERROR_TOOMANY, "too many errors, rest skipped."},
+ {L_ERROR_NOLIB, "can't load library:"},
+ {L_ERROR_UNDEF, "can't find symbol in library:"},
+ {L_ERROR_RLDBAD,
+ "RLD index out of range or bad relocation type:"},
+ {L_ERROR_FORMAT, "not a valid, executable xcoff file:"},
+ {L_ERROR_MEMBER,
+ "file not an archive or does not contain requested member:"},
+ {L_ERROR_TYPE, "symbol table mismatch:"},
+ {L_ERROR_ALIGN, "text alignment in file is wrong."},
+ {L_ERROR_SYSTEM, "System error:"},
+ {L_ERROR_ERRNO, NULL}
+ };
+
+#define LOAD_ERRTAB_LEN (sizeof(load_errtab)/sizeof(load_errtab[0]))
+#define ERRBUF_APPEND(s) strncat(errbuf, s, sizeof(errbuf)-strlen(errbuf)-1)
+
+ PyOS_snprintf(errbuf, sizeof(errbuf), "from module %.200s ", pathname);
+
+ if (!loadquery(L_GETMESSAGES, &message[0], sizeof(message))) {
+ ERRBUF_APPEND(strerror(errno));
+ ERRBUF_APPEND("\n");
+ }
+ for(i = 0; message[i] && *message[i]; i++) {
+ int nerr = atoi(message[i]);
+ for (j=0; j<LOAD_ERRTAB_LEN ; j++) {
+ if (nerr == load_errtab[j].errNo && load_errtab[j].errstr)
+ ERRBUF_APPEND(load_errtab[j].errstr);
+ }
+ while (isdigit(Py_CHARMASK(*message[i]))) message[i]++ ;
+ ERRBUF_APPEND(message[i]);
+ ERRBUF_APPEND("\n");
+ }
+ errbuf[strlen(errbuf)-1] = '\0'; /* trim off last newline */
+ PyErr_SetString(PyExc_ImportError, errbuf);
+ return;
+}
+
+
+dl_funcptr _PyImport_GetDynLoadFunc(const char *fqname, const char *shortname,
+ const char *pathname, FILE *fp)
+{
+ dl_funcptr p;
+
+ /*
+ -- Invoke load() with L_NOAUTODEFER leaving the imported symbols
+ -- of the shared module unresolved. Thus we have to resolve them
+ -- explicitly with loadbind. The new module is loaded, then we
+ -- resolve its symbols using the list of already loaded modules
+ -- (only those that belong to the python executable). Get these
+ -- with loadquery(L_GETINFO).
+ */
+
+ static void *staticmodlistptr = NULL;
+
+ if (!staticmodlistptr)
+ if (aix_getoldmodules(&staticmodlistptr) == -1)
+ return NULL;
+ p = (dl_funcptr) aix_load((char *)pathname, L_NOAUTODEFER, 0);
+ if (p == NULL) {
+ aix_loaderror(pathname);
+ return NULL;
+ }
+
+ return p;
+}