diff options
Diffstat (limited to 'Python/dynload_aix.c')
| -rw-r--r-- | Python/dynload_aix.c | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/Python/dynload_aix.c b/Python/dynload_aix.c deleted file mode 100644 index 684f10a8b9..0000000000 --- a/Python/dynload_aix.c +++ /dev/null @@ -1,184 +0,0 @@ - -/* Support for dynamic loading of extension modules */ - -#include "Python.h" -#include "importdl.h" - -#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 <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 char *_PyImport_DynLoadFiletab[] = {".so", NULL}; - -static int -aix_getoldmodules(void **modlistptr) -{ - ModulePtr modptr, prevmodptr; - struct ld_info *ldiptr; - char *ldibuf; - int errflag, bufsize = 1024; - 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]; - PyObject *pathname_ob = NULL; - PyObject *errbuf_ob = NULL; - 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 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 < Py_ARRAY_LENGTH(load_errtab); j++) { - if (nerr == load_errtab[j].errNo && load_errtab[j].errstr) - ERRBUF_APPEND(load_errtab[j].errstr); - } - while (Py_ISDIGIT(*message[i])) message[i]++ ; - ERRBUF_APPEND(message[i]); - ERRBUF_APPEND("\n"); - } - errbuf[strlen(errbuf)-1] = '\0'; /* trim off last newline */ - pathname_ob = PyUnicode_FromString(pathname); - errbuf_ob = PyUnicode_FromString(errbuf); - PyErr_SetImportError(errbuf_ob, NULL, pathname); - Py_DECREF(pathname_ob); - Py_DECREF(errbuf_ob); - return; -} - - -dl_funcptr _PyImport_FindSharedFuncptr(const char *prefix, - 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; -} |