dev/i386/fbt_x86.c

18  * information: Portions Copyright [yyyy] [name of copyright owner]
324  * FBT probe name validation
327 is_symbol_valid(const char* name)
335 	if (LIT_STRNSTART(name, "dtrace_") && !LIT_STRNSTART(name, "dtrace_safe_")) {
345 	if (LIT_STRNSTART(name, "fasttrap_") ||
346 	    LIT_STRNSTART(name, "fuword") ||
347 	    LIT_STRNSTART(name, "suword") ||
348 	    LIT_STRNEQL(name, "sprlock") ||
349 	    LIT_STRNEQL(name, "sprunlock") ||
350 	    LIT_STRNEQL(name, "uread") ||
351 	    LIT_STRNEQL(name, "uwrite")) {
355 	if (LIT_STRNSTART(name, "dsmos_"))
358         if (LIT_STRNSTART(name, "_dtrace"))
361 	if (LIT_STRNSTART(name, "chud"))
364 	if (LIT_STRNSTART(name, "hibernate_"))
367 	if (LIT_STRNEQL(name, "_ZNK6OSData14getBytesNoCopyEv"))
370 	if (LIT_STRNEQL(name, "_ZN9IOService14newTemperatureElPS_") || /* IOService::newTemperature */
371 	    LIT_STRNEQL(name, "_ZN9IOService26temperatureCriticalForZoneEPS_")) { /* IOService::temperatureCriticalForZone */
378 	if (LIT_STRNEQL(name, "t_invop") ||
379 	    LIT_STRNEQL(name, "enter_lohandler") ||
380 	    LIT_STRNEQL(name, "lo_alltraps") ||
381 	    LIT_STRNEQL(name, "kernel_trap") ||
382 	    LIT_STRNEQL(name, "interrupt") ||
383 	    LIT_STRNEQL(name, "i386_astintr")) {
387 	if (LIT_STRNEQL(name, "current_thread") ||
388 	    LIT_STRNEQL(name, "ast_pending") ||
389 	    LIT_STRNEQL(name, "fbt_perfCallback") ||
390 	    LIT_STRNEQL(name, "machine_thread_get_kern_state") ||
391 	    LIT_STRNEQL(name, "get_threadtask") ||
392 	    LIT_STRNEQL(name, "ml_set_interrupts_enabled") ||
393 	    LIT_STRNEQL(name, "dtrace_invop") ||
394 	    LIT_STRNEQL(name, "fbt_invop") ||
395 	    LIT_STRNEQL(name, "sdt_invop") ||
396 	    LIT_STRNEQL(name, "max_valid_stack_address")) {
403 	if (LIT_STRNSTART(name, "machine_stack_") ||
404 	    LIT_STRNSTART(name, "mapping_") ||
405 	    LIT_STRNEQL(name, "tmrCvt") ||
407 	    LIT_STRNSTART(name, "tsc_") ||
409 	    LIT_STRNSTART(name, "pmCPU") ||
410 	    LIT_STRNEQL(name, "pmKextRegister") ||
411 	    LIT_STRNEQL(name, "pmMarkAllCPUsOff") ||
412 	    LIT_STRNEQL(name, "pmSafeMode") ||
413 	    LIT_STRNEQL(name, "pmTimerSave") ||
414 	    LIT_STRNEQL(name, "pmTimerRestore") ||
415 	    LIT_STRNEQL(name, "pmUnRegister") ||
416 	    LIT_STRNSTART(name, "pms") ||
417 	    LIT_STRNEQL(name, "power_management_init") ||
418 	    LIT_STRNSTART(name, "usimple_") ||
419 	    LIT_STRNSTART(name, "lck_spin_lock") ||
420 	    LIT_STRNSTART(name, "lck_spin_unlock") ||
422 	    LIT_STRNSTART(name, "rtc_") ||
423 	    LIT_STRNSTART(name, "_rtc_") ||
424 	    LIT_STRNSTART(name, "rtclock_") ||
425 	    LIT_STRNSTART(name, "clock_") ||
426 	    LIT_STRNSTART(name, "absolutetime_to_") ||
427 	    LIT_STRNEQL(name, "setPop") ||
428 	    LIT_STRNEQL(name, "nanoseconds_to_absolutetime") ||
429 	    LIT_STRNEQL(name, "nanotime_to_absolutetime") ||
431 	    LIT_STRNSTART(name, "etimer_") ||
433 	    LIT_STRNSTART(name, "commpage_") ||
434 	    LIT_STRNSTART(name, "pmap_") ||
435 	    LIT_STRNSTART(name, "ml_") ||
436 	    LIT_STRNSTART(name, "PE_") ||
437 	    LIT_STRNEQL(name, "kprintf") ||
438 	    LIT_STRNSTART(name, "lapic_") ||
439 	    LIT_STRNSTART(name, "act_machine") ||
440 	    LIT_STRNSTART(name, "acpi_")  ||
441 	    LIT_STRNSTART(name, "pal_")){
448         if (LIT_STRNSTART(name, "machine_"))
451 	if (LIT_STRNEQL(name, "handle_pending_TLB_flushes"))
457         if (bsearch( name, critical_blacklist, CRITICAL_BLACKLIST_COUNT, sizeof(name), _cmp ) != NULL)
463 	if (bsearch( name, probe_ctx_closure, PROBE_CTX_CLOSURE_COUNT, sizeof(name), _cmp ) != NULL) {
470 	if (LIT_STRNSTART(name, "kdp_") ||
471 	    LIT_STRNSTART(name, "kdb_") ||
472 	    LIT_STRNSTART(name, "kdbg_") ||
473 	    LIT_STRNSTART(name, "kdebug_") ||
474 	    LIT_STRNSTART(name, "kernel_debug") ||
475 	    LIT_STRNEQL(name, "Debugger") ||
476 	    LIT_STRNEQL(name, "Call_DebuggerC") ||
477 	    LIT_STRNEQL(name, "lock_debugger") ||
478 	    LIT_STRNEQL(name, "unlock_debugger") ||
479 	    LIT_STRNEQL(name, "SysChoked"))  {
487 	if (NULL != strstr(name, "panic_") ||
488 	    LIT_STRNEQL(name, "panic") ||
489 	    LIT_STRNEQL(name, "preemption_underflow_panic")) {
983 		char *name = strings + sym[i].n_un.n_strx;
985 		/* Check that the symbol is a global and that it has a name. */
989 		if (0 == sym[i].n_un.n_strx) /* iff a null, "", name. */
993 		if (*name == '_')
994 			name += 1;
999 		if (MOD_IS_MACH_KERNEL(ctl) && !is_symbol_valid(name))
1002 		__provide_probe_32(ctl, instrLow, instrHigh, modname, name, (machine_inst_t*)sym[i].n_value);
1019 			char* name = symbol->dtsym_name;
1022 			if (*name == '_')
1023 				name += 1;
1028 			if (MOD_IS_MACH_KERNEL(ctl) && !is_symbol_valid(name))
1031 			__provide_probe_32(ctl, (uintptr_t)symbol->dtsym_addr, (uintptr_t)(symbol->dtsym_addr + symbol->dtsym_size), modname, name, (machine_inst_t*)(uintptr_t)symbol->dtsym_addr);
1501 		char *name = strings + sym[i].n_un.n_strx;
1503 		/* Check that the symbol is a global and that it has a name. */
1507 		if (0 == sym[i].n_un.n_strx) /* iff a null, "", name. */
1511 		if (*name == '_')
1512 			name += 1;
1517 		if (MOD_IS_MACH_KERNEL(ctl) && !is_symbol_valid(name))
1520 		__provide_probe_64(ctl, instrLow, instrHigh, modname, name, (machine_inst_t*)sym[i].n_value);
1543 			char* name = symbol->dtsym_name;
1546 			if (*name == '_')
1547 				name += 1;
1552                         if (MOD_IS_MACH_KERNEL(ctl) && !is_symbol_valid(name))
1555 			__provide_probe_64(ctl, (uintptr_t)symbol->dtsym_addr, (uintptr_t)(symbol->dtsym_addr + symbol->dtsym_size), modname, name, (machine_inst_t*)(uintptr_t)symbol->dtsym_addr);