diff options
Diffstat (limited to 'Python/dynload_aix.c')
-rw-r--r-- | Python/dynload_aix.c | 280 |
1 files changed, 140 insertions, 140 deletions
diff --git a/Python/dynload_aix.c b/Python/dynload_aix.c index 7a604f2..8d56d7d 100644 --- a/Python/dynload_aix.c +++ b/Python/dynload_aix.c @@ -4,10 +4,10 @@ #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 <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> @@ -22,85 +22,85 @@ extern char *Py_GetProgramName(void); typedef struct Module { - struct Module *next; - void *entry; + struct Module *next; + void *entry; } Module, *ModulePtr; const struct filedescr _PyImport_DynLoadFiletab[] = { - {".so", "rb", C_EXTENSION}, - {"module.so", "rb", C_EXTENSION}, - {0, 0} + {".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; + 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; } @@ -108,76 +108,76 @@ 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])) + 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; + 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) + 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; + 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; } |