Hi Seokwoo, kernel test robot noticed the following build errors:
[auto build test ERROR on trace/for-next] [also build test ERROR on linus/master v6.18-rc7 next-20251127] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Seokwoo-Chung-Ryan/docs-tracing-fprobe-Document-list-filters-and-entry-exit/20251127-024245 base: https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace for-next patch link: https://lore.kernel.org/r/20251126184110.72241-3-seokwoo.chung130%40gmail.com patch subject: [PATCH v4 2/3] tracing/fprobe: Support comma-separated symbols and :entry/:exit config: x86_64-randconfig-001-20251127 (https://download.01.org/0day-ci/archive/20251127/[email protected]/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251127/[email protected]/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All errors (new ones prefixed by >>): >> kernel/trace/trace_fprobe.c:1284:1: error: function definition is not >> allowed here 1284 | { | ^ kernel/trace/trace_fprobe.c:1514:1: error: function definition is not allowed here 1514 | { | ^ kernel/trace/trace_fprobe.c:1531:1: error: function definition is not allowed here 1531 | { | ^ kernel/trace/trace_fprobe.c:1536:1: error: function definition is not allowed here 1536 | { | ^ kernel/trace/trace_fprobe.c:1546:1: error: function definition is not allowed here 1546 | { | ^ kernel/trace/trace_fprobe.c:1574:1: error: function definition is not allowed here 1574 | { | ^ kernel/trace/trace_fprobe.c:1610:1: error: function definition is not allowed here 1610 | { | ^ kernel/trace/trace_fprobe.c:1655:1: error: function definition is not allowed here 1655 | { | ^ kernel/trace/trace_fprobe.c:1684:1: error: function definition is not allowed here 1684 | { | ^ >> kernel/trace/trace_fprobe.c:1702:15: error: use of undeclared identifier >> 'init_fprobe_trace_early' 1702 | core_initcall(init_fprobe_trace_early); | ^ >> kernel/trace/trace_fprobe.c:1702:15: error: use of undeclared identifier >> 'init_fprobe_trace_early' >> kernel/trace/trace_fprobe.c:1702:40: error: expected '}' 1702 | core_initcall(init_fprobe_trace_early); | ^ kernel/trace/trace_fprobe.c:1175:1: note: to match this '{' 1175 | { | ^ 12 errors generated. vim +1284 kernel/trace/trace_fprobe.c 08c9306fc2e32b Masami Hiramatsu (Google 2023-08-23 1281) 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1282) static int trace_fprobe_create_internal(int argc, const char *argv[], 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1283) struct traceprobe_parse_context *ctx) 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 @1284) { 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1285) /* 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1286) * Argument syntax: 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1287) * - Add fentry probe: 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1288) * f[:[GRP/][EVENT]] [MOD:]KSYM [FETCHARGS] 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1289) * - Add fexit probe: 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1290) * f[N][:[GRP/][EVENT]] [MOD:]KSYM%return [FETCHARGS] e2d0d7b2f42dca Masami Hiramatsu (Google 2023-06-06 1291) * - Add tracepoint probe: e2d0d7b2f42dca Masami Hiramatsu (Google 2023-06-06 1292) * t[:[GRP/][EVENT]] TRACEPOINT [FETCHARGS] 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1293) * 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1294) * Fetch args: 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1295) * $retval : fetch return value 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1296) * $stack : fetch stack address 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1297) * $stackN : fetch Nth entry of stack (N:0-) 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1298) * $argN : fetch Nth argument (N:1-) 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1299) * $comm : fetch current task comm 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1300) * @ADDR : fetch memory at ADDR (ADDR should be in kernel) 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1301) * @SYM[+|-offs] : fetch memory at SYM +|- offs (SYM is a data symbol) 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1302) * Dereferencing memory fetch: 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1303) * +|-offs(ARG) : fetch memory at ARG +|- offs address. 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1304) * Alias name of args: 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1305) * NAME=FETCHARG : set NAME as alias of FETCHARG. 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1306) * Type of args: 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1307) * FETCHARG:TYPE : use TYPE instead of unsigned long. 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1308) */ 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1309) struct trace_fprobe *tf __free(free_trace_fprobe) = NULL; 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1310) const char *event = NULL, *group = FPROBE_EVENT_SYSTEM; d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1311) struct module *mod __free(module_put) = NULL; 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1312) const char **new_argv __free(kfree) = NULL; a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1313) char *parsed_nofilter __free(kfree) = NULL; a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1314) char *parsed_filter __free(kfree) = NULL; d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1315) char *symbol __free(kfree) = NULL; d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1316) char *ebuf __free(kfree) = NULL; d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1317) char *gbuf __free(kfree) = NULL; d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1318) char *sbuf __free(kfree) = NULL; d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1319) char *abuf __free(kfree) = NULL; 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1320) char *dbuf __free(kfree) = NULL; d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1321) int i, new_argc = 0, ret = 0; e2d0d7b2f42dca Masami Hiramatsu (Google 2023-06-06 1322) bool is_tracepoint = false; a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1323) bool list_mode = false; d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1324) bool is_return = false; 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1325) e2d0d7b2f42dca Masami Hiramatsu (Google 2023-06-06 1326) if ((argv[0][0] != 'f' && argv[0][0] != 't') || argc < 2) 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1327) return -ECANCELED; 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1328) e2d0d7b2f42dca Masami Hiramatsu (Google 2023-06-06 1329) if (argv[0][0] == 't') { e2d0d7b2f42dca Masami Hiramatsu (Google 2023-06-06 1330) is_tracepoint = true; e2d0d7b2f42dca Masami Hiramatsu (Google 2023-06-06 1331) group = TRACEPOINT_EVENT_SYSTEM; e2d0d7b2f42dca Masami Hiramatsu (Google 2023-06-06 1332) } e2d0d7b2f42dca Masami Hiramatsu (Google 2023-06-06 1333) a2224559cbba1d Masami Hiramatsu (Google 2024-12-26 1334) if (argv[0][1] != '\0') { a2224559cbba1d Masami Hiramatsu (Google 2024-12-26 1335) if (argv[0][1] != ':') { a2224559cbba1d Masami Hiramatsu (Google 2024-12-26 1336) trace_probe_log_set_index(0); 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1337) trace_probe_log_err(1, BAD_MAXACT); 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1338) return -EINVAL; 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1339) } a2224559cbba1d Masami Hiramatsu (Google 2024-12-26 1340) event = &argv[0][2]; 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1341) } 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1342) 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1343) trace_probe_log_set_index(1); 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1344) a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1345) /* Parse spec early (single vs list, suffix, base symbol) */ a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1346) ret = parse_fprobe_spec(argv[1], is_tracepoint, &symbol, &is_return, a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1347) &list_mode, &parsed_filter, &parsed_nofilter); 08c9306fc2e32b Masami Hiramatsu (Google 2023-08-23 1348) if (ret < 0) 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1349) return -EINVAL; 08c9306fc2e32b Masami Hiramatsu (Google 2023-08-23 1350) a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1351) for (i = 2; i < argc; i++) { a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1352) char *tmp = strstr(argv[i], "$retval"); a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1353) a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1354) if (tmp && !isalnum(tmp[7]) && tmp[7] != '_') { a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1355) if (is_tracepoint) { a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1356) trace_probe_log_set_index(i); a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1357) trace_probe_log_err(tmp - argv[i], RETVAL_ON_PROBE); a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1358) return -EINVAL; a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1359) } a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1360) is_return = true; a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1361) break; a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1362) } a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1363) } a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1364) 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1365) trace_probe_log_set_index(0); 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1366) if (event) { d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1367) gbuf = kmalloc(MAX_EVENT_NAME_LEN, GFP_KERNEL); d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1368) if (!gbuf) d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1369) return -ENOMEM; 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1370) ret = traceprobe_parse_event_name(&event, &group, gbuf, 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1371) event - argv[0]); 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1372) if (ret) 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1373) return -EINVAL; 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1374) } 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1375) 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1376) if (!event) { a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1377) /* a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1378) * Event name rules: a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1379) * - For list/wildcard: require explicit [GROUP/]EVENT a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1380) * - For single literal: autogenerate symbol__entry/symbol__exit a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1381) */ a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1382) if (list_mode || has_wildcard(symbol)) { a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1383) trace_probe_log_err(0, NO_GROUP_NAME); a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1384) return -EINVAL; a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1385) } d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1386) ebuf = kmalloc(MAX_EVENT_NAME_LEN, GFP_KERNEL); d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1387) if (!ebuf) d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1388) return -ENOMEM; 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1389) /* Make a new event name */ e2d0d7b2f42dca Masami Hiramatsu (Google 2023-06-06 1390) if (is_tracepoint) d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1391) snprintf(ebuf, MAX_EVENT_NAME_LEN, "%s%s", b576e09701c7d0 Masami Hiramatsu (Google 2023-06-06 1392) isdigit(*symbol) ? "_" : "", symbol); e2d0d7b2f42dca Masami Hiramatsu (Google 2023-06-06 1393) else d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1394) snprintf(ebuf, MAX_EVENT_NAME_LEN, "%s__%s", symbol, 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1395) is_return ? "exit" : "entry"); d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1396) sanitize_event_name(ebuf); d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1397) event = ebuf; 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1398) } 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1399) b576e09701c7d0 Masami Hiramatsu (Google 2023-06-06 1400) if (is_return) 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1401) ctx->flags |= TPARG_FL_RETURN; b576e09701c7d0 Masami Hiramatsu (Google 2023-06-06 1402) else 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1403) ctx->flags |= TPARG_FL_FENTRY; b576e09701c7d0 Masami Hiramatsu (Google 2023-06-06 1404) 2867495dea8632 Masami Hiramatsu (Google 2025-04-01 1405) ctx->funcname = NULL; b576e09701c7d0 Masami Hiramatsu (Google 2023-06-06 1406) if (is_tracepoint) { 2867495dea8632 Masami Hiramatsu (Google 2025-04-01 1407) /* Get tracepoint and lock its module until the end of the registration. */ 2867495dea8632 Masami Hiramatsu (Google 2025-04-01 1408) struct tracepoint *tpoint; 2867495dea8632 Masami Hiramatsu (Google 2025-04-01 1409) 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1410) ctx->flags |= TPARG_FL_TPOINT; 2867495dea8632 Masami Hiramatsu (Google 2025-04-01 1411) mod = NULL; 2867495dea8632 Masami Hiramatsu (Google 2025-04-01 1412) tpoint = find_tracepoint(symbol, &mod); d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1413) if (tpoint) { d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1414) sbuf = kmalloc(KSYM_NAME_LEN, GFP_KERNEL); d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1415) if (!sbuf) d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1416) return -ENOMEM; 2867495dea8632 Masami Hiramatsu (Google 2025-04-01 1417) ctx->funcname = kallsyms_lookup((unsigned long)tpoint->probestub, 2867495dea8632 Masami Hiramatsu (Google 2025-04-01 1418) NULL, NULL, NULL, sbuf); b576e09701c7d0 Masami Hiramatsu (Google 2023-06-06 1419) } d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1420) } a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1421) a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1422) if (!list_mode && !has_wildcard(symbol) && !is_tracepoint) e3d6e1b9a34c74 Masami Hiramatsu (Google 2025-04-01 1423) ctx->funcname = symbol; b576e09701c7d0 Masami Hiramatsu (Google 2023-06-06 1424) d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1425) abuf = kmalloc(MAX_BTF_ARGS_LEN, GFP_KERNEL); d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1426) if (!abuf) d643eaa7082dc3 Masami Hiramatsu (Google 2025-07-23 1427) return -ENOMEM; 18b1e870a49671 Masami Hiramatsu (Google 2023-06-06 1428) argc -= 2; argv += 2; 18b1e870a49671 Masami Hiramatsu (Google 2023-06-06 1429) new_argv = traceprobe_expand_meta_args(argc, argv, &new_argc, 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1430) abuf, MAX_BTF_ARGS_LEN, ctx); 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1431) if (IS_ERR(new_argv)) 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1432) return PTR_ERR(new_argv); 18b1e870a49671 Masami Hiramatsu (Google 2023-06-06 1433) if (new_argv) { 18b1e870a49671 Masami Hiramatsu (Google 2023-06-06 1434) argc = new_argc; 18b1e870a49671 Masami Hiramatsu (Google 2023-06-06 1435) argv = new_argv; 18b1e870a49671 Masami Hiramatsu (Google 2023-06-06 1436) } 57faaa04804ccb Masami Hiramatsu (Google 2025-03-27 1437) if (argc > MAX_TRACE_ARGS) { 57faaa04804ccb Masami Hiramatsu (Google 2025-03-27 1438) trace_probe_log_set_index(2); 57faaa04804ccb Masami Hiramatsu (Google 2025-03-27 1439) trace_probe_log_err(0, TOO_MANY_ARGS); 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1440) return -E2BIG; 57faaa04804ccb Masami Hiramatsu (Google 2025-03-27 1441) } 18b1e870a49671 Masami Hiramatsu (Google 2023-06-06 1442) d9b15224dd8ff8 Ye Bin 2024-03-22 1443 ret = traceprobe_expand_dentry_args(argc, argv, &dbuf); d9b15224dd8ff8 Ye Bin 2024-03-22 1444 if (ret) 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1445) return ret; d9b15224dd8ff8 Ye Bin 2024-03-22 1446 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1447) /* setup a probe */ 2867495dea8632 Masami Hiramatsu (Google 2025-04-01 1448) tf = alloc_trace_fprobe(group, event, symbol, argc, is_return, is_tracepoint); 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1449) if (IS_ERR(tf)) { 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1450) ret = PTR_ERR(tf); 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1451) /* This must return -ENOMEM, else there is a bug */ 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1452) WARN_ON_ONCE(ret != -ENOMEM); 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1453) return ret; 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1454) } e2d0d7b2f42dca Masami Hiramatsu (Google 2023-06-06 1455) a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1456) /* carry list parsing result into tf */ a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1457) if (!is_tracepoint) { a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1458) tf->list_mode = list_mode; a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1459) if (parsed_filter) { a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1460) tf->filter = kstrdup(parsed_filter, GFP_KERNEL); a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1461) if (!tf->filter) a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1462) return -ENOMEM; a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1463) } a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1464) if (parsed_nofilter) { a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1465) tf->nofilter = kstrdup(parsed_nofilter, GFP_KERNEL); a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1466) if (!tf->nofilter) a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1467) return -ENOMEM; a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1468) } a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1469) } a90d508c939bee Seokwoo Chung (Ryan 2025-11-26 1470) 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1471) /* parse arguments */ 73f35080477e89 Mikel Rychliski 2024-09-30 1472 for (i = 0; i < argc; i++) { 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1473) trace_probe_log_set_index(i + 2); 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1474) ctx->offset = 0; 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1475) ret = traceprobe_parse_probe_arg(&tf->tp, i, argv[i], ctx); 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1476) if (ret) 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1477) return ret; /* This can be -ENOMEM */ 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1478) } 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1479) 25f00e40ce7953 Masami Hiramatsu (Google 2024-03-04 1480) if (is_return && tf->tp.entry_arg) { 25f00e40ce7953 Masami Hiramatsu (Google 2024-03-04 1481) tf->fp.entry_handler = trace_fprobe_entry_handler; 25f00e40ce7953 Masami Hiramatsu (Google 2024-03-04 1482) tf->fp.entry_data_size = traceprobe_get_entry_data_size(&tf->tp); db5e228611b118 Masami Hiramatsu (Google 2025-02-26 1483) if (ALIGN(tf->fp.entry_data_size, sizeof(long)) > MAX_FPROBE_DATA_SIZE) { db5e228611b118 Masami Hiramatsu (Google 2025-02-26 1484) trace_probe_log_set_index(2); db5e228611b118 Masami Hiramatsu (Google 2025-02-26 1485) trace_probe_log_err(0, TOO_MANY_EARGS); db5e228611b118 Masami Hiramatsu (Google 2025-02-26 1486) return -E2BIG; db5e228611b118 Masami Hiramatsu (Google 2025-02-26 1487) } 25f00e40ce7953 Masami Hiramatsu (Google 2024-03-04 1488) } 25f00e40ce7953 Masami Hiramatsu (Google 2024-03-04 1489) 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1490) ret = traceprobe_set_print_fmt(&tf->tp, 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1491) is_return ? PROBE_PRINT_RETURN : PROBE_PRINT_NORMAL); 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1492) if (ret < 0) 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1493) return ret; 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1494) 2db832ec9090d3 Masami Hiramatsu (Google 2025-04-01 1495) ret = register_trace_fprobe_event(tf); 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1496) if (ret) { 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1497) trace_probe_log_set_index(1); 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1498) if (ret == -EILSEQ) 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1499) trace_probe_log_err(0, BAD_INSN_BNDRY); 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1500) else if (ret == -ENOENT) 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1501) trace_probe_log_err(0, BAD_PROBE_ADDR); 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1502) else if (ret != -ENOMEM && ret != -EEXIST) 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1503) trace_probe_log_err(0, FAIL_REG_PROBE); 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1504) return -EINVAL; 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1505) } 334e5519c37570 Masami Hiramatsu (Google 2023-06-06 1506) 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1507) /* 'tf' is successfully registered. To avoid freeing, assign NULL. */ 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1508) tf = NULL; 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1509) 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1510) return 0; 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1511) } 8275637215bd3d Masami Hiramatsu (Google 2025-01-17 1512) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
