X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/cb3231590a3c94ab4375e2228bd5e86b0cf1ad7e..f427ee49d309d8fc33ebf3042c3a775f2f530ded:/osfmk/kern/telemetry.c diff --git a/osfmk/kern/telemetry.c b/osfmk/kern/telemetry.c index b723f0b7c..b777052d4 100644 --- a/osfmk/kern/telemetry.c +++ b/osfmk/kern/telemetry.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2012-2019 Apple Inc. All rights reserved. + * Copyright (c) 2012-2020 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * @@ -60,7 +60,8 @@ #define TELEMETRY_DEBUG 0 -extern int proc_pid(void *); +struct proc; +extern int proc_pid(struct proc *); extern char *proc_name_address(void *p); extern uint64_t proc_uniqueid(void *p); extern uint64_t proc_was_throttled(void *p); @@ -116,9 +117,9 @@ struct micro_snapshot_buffer telemetry_buffer = { int telemetry_bytes_since_last_mark = -1; // How much data since buf was last marked? int telemetry_buffer_notify_at = 0; -lck_grp_t telemetry_lck_grp; -lck_mtx_t telemetry_mtx; -lck_mtx_t telemetry_pmi_mtx; +LCK_GRP_DECLARE(telemetry_lck_grp, "telemetry group"); +LCK_MTX_DECLARE(telemetry_mtx, &telemetry_lck_grp); +LCK_MTX_DECLARE(telemetry_pmi_mtx, &telemetry_lck_grp); #define TELEMETRY_LOCK() do { lck_mtx_lock(&telemetry_mtx); } while (0) #define TELEMETRY_TRY_SPIN_LOCK() lck_mtx_try_lock_spin(&telemetry_mtx) @@ -133,11 +134,8 @@ telemetry_init(void) kern_return_t ret; uint32_t telemetry_notification_leeway; - lck_grp_init(&telemetry_lck_grp, "telemetry group", LCK_GRP_ATTR_NULL); - lck_mtx_init(&telemetry_mtx, &telemetry_lck_grp, LCK_ATTR_NULL); - lck_mtx_init(&telemetry_pmi_mtx, &telemetry_lck_grp, LCK_ATTR_NULL); - - if (!PE_parse_boot_argn("telemetry_buffer_size", &telemetry_buffer.size, sizeof(telemetry_buffer.size))) { + if (!PE_parse_boot_argn("telemetry_buffer_size", + &telemetry_buffer.size, sizeof(telemetry_buffer.size))) { telemetry_buffer.size = TELEMETRY_DEFAULT_BUFFER_SIZE; } @@ -152,7 +150,8 @@ telemetry_init(void) } bzero((void *) telemetry_buffer.buffer, telemetry_buffer.size); - if (!PE_parse_boot_argn("telemetry_notification_leeway", &telemetry_notification_leeway, sizeof(telemetry_notification_leeway))) { + if (!PE_parse_boot_argn("telemetry_notification_leeway", + &telemetry_notification_leeway, sizeof(telemetry_notification_leeway))) { /* * By default, notify the user to collect the buffer when there is this much space left in the buffer. */ @@ -165,19 +164,21 @@ telemetry_init(void) } telemetry_buffer_notify_at = telemetry_buffer.size - telemetry_notification_leeway; - if (!PE_parse_boot_argn("telemetry_sample_rate", &telemetry_sample_rate, sizeof(telemetry_sample_rate))) { + if (!PE_parse_boot_argn("telemetry_sample_rate", + &telemetry_sample_rate, sizeof(telemetry_sample_rate))) { telemetry_sample_rate = TELEMETRY_DEFAULT_SAMPLE_RATE; } /* * To enable telemetry for all tasks, include "telemetry_sample_all_tasks=1" in boot-args. */ - if (!PE_parse_boot_argn("telemetry_sample_all_tasks", &telemetry_sample_all_tasks, sizeof(telemetry_sample_all_tasks))) { -#if CONFIG_EMBEDDED && !(DEVELOPMENT || DEBUG) + if (!PE_parse_boot_argn("telemetry_sample_all_tasks", + &telemetry_sample_all_tasks, sizeof(telemetry_sample_all_tasks))) { +#if !defined(XNU_TARGET_OS_OSX) && !(DEVELOPMENT || DEBUG) telemetry_sample_all_tasks = FALSE; #else telemetry_sample_all_tasks = TRUE; -#endif /* CONFIG_EMBEDDED && !(DEVELOPMENT || DEBUG) */ +#endif /* !defined(XNU_TARGET_OS_OSX) && !(DEVELOPMENT || DEBUG) */ } kprintf("Telemetry: Sampling %stasks once per %u second%s\n", @@ -486,9 +487,10 @@ telemetry_take_sample(thread_t thread, uint8_t microsnapshot_flags, struct micro uintptr_t frames[128]; bool user64_regs = false; - int backtrace_error = backtrace_user(frames, - sizeof(frames) / sizeof(frames[0]), &btcount, &user64_regs, NULL); - if (backtrace_error) { + int bterror = 0; + btcount = backtrace_user(frames, + sizeof(frames) / sizeof(frames[0]), &bterror, &user64_regs, NULL); + if (bterror != 0) { return; } bool user64_va = task_has_64Bit_addr(task); @@ -512,7 +514,7 @@ telemetry_take_sample(thread_t thread, uint8_t microsnapshot_flags, struct micro (copyin(shared_cache_base_address + sc_header_uuid_offset, (char *)&shared_cache_header.uuid, sizeof(shared_cache_header.uuid)) == 0)) { shared_cache_uuid_valid = 1; - shared_cache_slide = vm_shared_region_get_slide(sr); + shared_cache_slide = sr->sr_slide; } // vm_shared_region_get() gave us a reference on the shared region. vm_shared_region_deallocate(sr); @@ -564,7 +566,9 @@ telemetry_take_sample(thread_t thread, uint8_t microsnapshot_flags, struct micro char *uuid_info_array = NULL; if (uuid_info_count > 0) { - if ((uuid_info_array = (char *)kalloc(uuid_info_array_size)) == NULL) { + uuid_info_array = kheap_alloc(KHEAP_TEMP, + uuid_info_array_size, Z_WAITOK); + if (uuid_info_array == NULL) { return; } @@ -573,7 +577,7 @@ telemetry_take_sample(thread_t thread, uint8_t microsnapshot_flags, struct micro * It may be nonresident, in which case just fix up nloadinfos to 0 in the task snapshot. */ if (copyin(uuid_info_addr, uuid_info_array, uuid_info_array_size) != 0) { - kfree(uuid_info_array, uuid_info_array_size); + kheap_free(KHEAP_TEMP, uuid_info_array, uuid_info_array_size); uuid_info_array = NULL; uuid_info_array_size = 0; } @@ -701,6 +705,7 @@ copytobuffer: tsnap->ss_flags |= kTaskIsSuppressed; } + tsnap->latency_qos = task_grab_latency_qos(task); strlcpy(tsnap->p_comm, proc_name_address(p), sizeof(tsnap->p_comm)); @@ -869,7 +874,7 @@ cancel_sample: } if (uuid_info_array != NULL) { - kfree(uuid_info_array, uuid_info_array_size); + kheap_free(KHEAP_TEMP, uuid_info_array, uuid_info_array_size); } } @@ -1035,18 +1040,18 @@ out: #define BOOTPROFILE_MAX_BUFFER_SIZE (64*1024*1024) /* see also COPYSIZELIMIT_PANIC */ -vm_offset_t bootprofile_buffer = 0; -uint32_t bootprofile_buffer_size = 0; -uint32_t bootprofile_buffer_current_position = 0; -uint32_t bootprofile_interval_ms = 0; -uint32_t bootprofile_stackshot_flags = 0; -uint64_t bootprofile_interval_abs = 0; -uint64_t bootprofile_next_deadline = 0; -uint32_t bootprofile_all_procs = 0; -char bootprofile_proc_name[17]; +vm_offset_t bootprofile_buffer = 0; +uint32_t bootprofile_buffer_size = 0; +uint32_t bootprofile_buffer_current_position = 0; +uint32_t bootprofile_interval_ms = 0; +uint64_t bootprofile_stackshot_flags = 0; +uint64_t bootprofile_interval_abs = 0; +uint64_t bootprofile_next_deadline = 0; +uint32_t bootprofile_all_procs = 0; +char bootprofile_proc_name[17]; uint64_t bootprofile_delta_since_timestamp = 0; -lck_grp_t bootprofile_lck_grp; -lck_mtx_t bootprofile_mtx; +LCK_GRP_DECLARE(bootprofile_lck_grp, "bootprofile_group"); +LCK_MTX_DECLARE(bootprofile_mtx, &bootprofile_lck_grp); enum { @@ -1072,10 +1077,8 @@ bootprofile_init(void) kern_return_t ret; char type[32]; - lck_grp_init(&bootprofile_lck_grp, "bootprofile group", LCK_GRP_ATTR_NULL); - lck_mtx_init(&bootprofile_mtx, &bootprofile_lck_grp, LCK_ATTR_NULL); - - if (!PE_parse_boot_argn("bootprofile_buffer_size", &bootprofile_buffer_size, sizeof(bootprofile_buffer_size))) { + if (!PE_parse_boot_argn("bootprofile_buffer_size", + &bootprofile_buffer_size, sizeof(bootprofile_buffer_size))) { bootprofile_buffer_size = 0; } @@ -1083,15 +1086,18 @@ bootprofile_init(void) bootprofile_buffer_size = BOOTPROFILE_MAX_BUFFER_SIZE; } - if (!PE_parse_boot_argn("bootprofile_interval_ms", &bootprofile_interval_ms, sizeof(bootprofile_interval_ms))) { + if (!PE_parse_boot_argn("bootprofile_interval_ms", + &bootprofile_interval_ms, sizeof(bootprofile_interval_ms))) { bootprofile_interval_ms = 0; } - if (!PE_parse_boot_argn("bootprofile_stackshot_flags", &bootprofile_stackshot_flags, sizeof(bootprofile_stackshot_flags))) { + if (!PE_parse_boot_argn("bootprofile_stackshot_flags", + &bootprofile_stackshot_flags, sizeof(bootprofile_stackshot_flags))) { bootprofile_stackshot_flags = 0; } - if (!PE_parse_boot_argn("bootprofile_proc_name", &bootprofile_proc_name, sizeof(bootprofile_proc_name))) { + if (!PE_parse_boot_argn("bootprofile_proc_name", + &bootprofile_proc_name, sizeof(bootprofile_proc_name))) { bootprofile_all_procs = 1; bootprofile_proc_name[0] = '\0'; } @@ -1122,7 +1128,8 @@ bootprofile_init(void) } bzero((void *) bootprofile_buffer, bootprofile_buffer_size); - kprintf("Boot profile: Sampling %s once per %u ms at %s\n", bootprofile_all_procs ? "all procs" : bootprofile_proc_name, bootprofile_interval_ms, + kprintf("Boot profile: Sampling %s once per %u ms at %s\n", + bootprofile_all_procs ? "all procs" : bootprofile_proc_name, bootprofile_interval_ms, bootprofile_type == kBootProfileStartTimerAtBoot ? "boot" : (bootprofile_type == kBootProfileStartTimerAtWake ? "wake" : "unknown")); timer_call_setup(&bootprofile_timer_call_entry, @@ -1190,9 +1197,9 @@ bootprofile_timer_call( /* initiate a stackshot with whatever portion of the buffer is left */ if (bootprofile_buffer_current_position < bootprofile_buffer_size) { - uint32_t flags = STACKSHOT_KCDATA_FORMAT | STACKSHOT_TRYLOCK | STACKSHOT_SAVE_LOADINFO + uint64_t flags = STACKSHOT_KCDATA_FORMAT | STACKSHOT_TRYLOCK | STACKSHOT_SAVE_LOADINFO | STACKSHOT_GET_GLOBAL_MEM_STATS; -#if !CONFIG_EMBEDDED +#if defined(XNU_TARGET_OS_OSX) flags |= STACKSHOT_SAVE_KEXT_LOADINFO; #endif @@ -1212,7 +1219,7 @@ bootprofile_timer_call( kern_return_t r = stack_snapshot_from_kernel( pid_to_profile, (void *)(bootprofile_buffer + bootprofile_buffer_current_position), bootprofile_buffer_size - bootprofile_buffer_current_position, - flags, bootprofile_delta_since_timestamp, &retbytes); + flags, bootprofile_delta_since_timestamp, 0, &retbytes); /* * We call with STACKSHOT_TRYLOCK because the stackshot lock is coarser