e289faa9f1
We already applied the 'vendor hook' for Dtask Debugging Information in below issue. (https://issuetracker.google.com/issues/162776704) There are vendor hook call in mutex and rw_semaphore, but not for rt_mutex Please refer to description in details as below, 1. Description This feature writes rt mutex lock waiting information on the task_struct structure. We can check mutex information and mutex owner through the kernel log and custom analysis tools. Like the previous feature in mutex and rw semaphore, added data can be checked by ramdump analysis. 2. Vendor Hook Position 1) VENDOR_DATA - struct task_struct in sched.h VENDOR_DATA_ARRAY(2) [0] : type // RTmutex (Mutex, Rwsem, ...) [1] : pointer // address of lock 2) VENDOR_HOOKs - __rt_mutex_slowlock() in kernel/locking/rtmutex.c 3. Example - SysRq-w in kernel log ... [ 54.164463] [3: kworker/u16:3: 253] kworker/3:2 D12736 418 2 0x00000228 [ 54.164497] [3: kworker/u16:3: 253] RTmutex: 0xffffffc051fa3ae8: owner[sh :9003] [ 54.167812] [3: kworker/u16:3: 253] sh D12848 9003 6900 0x04000200 [ 54.167824] [3: kworker/u16:3: 253] RTmutex: 0xffffffc051fa3b08: owner[kworker/3:2 :418] ... Bug: 186567468 Signed-off-by: JINHO LIM <jordan.lim@samsung.com> Change-Id: I93f9753be0b2c1fa1a6eaea09379d54c31d1ebcf
126 lines
6.2 KiB
C
126 lines
6.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/* vendor_hook.c
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*
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* Android Vendor Hook Support
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*
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* Copyright 2020 Google LLC
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*/
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#define CREATE_TRACE_POINTS
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#include <trace/hooks/vendor_hooks.h>
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#include <trace/hooks/sched.h>
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#include <trace/hooks/fpsimd.h>
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#include <trace/hooks/binder.h>
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#include <trace/hooks/rwsem.h>
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#include <trace/hooks/futex.h>
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#include <trace/hooks/dtask.h>
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#include <trace/hooks/cpuidle.h>
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#include <trace/hooks/topology.h>
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#include <trace/hooks/mpam.h>
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#include <trace/hooks/gic.h>
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#include <trace/hooks/wqlockup.h>
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#include <trace/hooks/debug.h>
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#include <trace/hooks/sysrqcrash.h>
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#include <trace/hooks/printk.h>
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#include <trace/hooks/gic_v3.h>
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#include <trace/hooks/epoch.h>
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#include <trace/hooks/cpufreq.h>
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#include <trace/hooks/mm.h>
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#include <trace/hooks/preemptirq.h>
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#include <trace/hooks/ftrace_dump.h>
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#include <trace/hooks/ufshcd.h>
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#include <trace/hooks/cgroup.h>
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#include <trace/hooks/sys.h>
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/*
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* Export tracepoints that act as a bare tracehook (ie: have no trace event
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* associated with them) to allow external modules to probe them.
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*/
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_select_task_rq_fair);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_select_task_rq_rt);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_select_fallback_rq);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_scheduler_tick);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_enqueue_task);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_dequeue_task);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_can_migrate_task);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_find_lowest_rq);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_rtmutex_prepare_setprio);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_prepare_prio_fork);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_finish_prio_fork);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_set_user_nice);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_setscheduler);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_arch_set_freq_scale);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_is_fpsimd_save);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_binder_transaction_init);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_binder_set_priority);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_binder_restore_priority);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_binder_wakeup_poll_threads_ilocked);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_binder_wakeup_thread_ilocked);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_init);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_wake);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_write_finished);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_alter_rwsem_list_add);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_alter_futex_plist_add);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mutex_wait_start);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mutex_wait_finish);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rtmutex_wait_start);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rtmutex_wait_finish);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_read_wait_start);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_read_wait_finish);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_write_wait_start);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_write_wait_finish);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_sched_show_task);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cpu_idle_enter);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cpu_idle_exit);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mpam_set);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_find_busiest_group);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_gic_resume);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_wq_lockup_pool);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ipi_stop);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_sysrq_crash);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_dump_throttled_rt_tasks);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_printk_hotplug);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_jiffies_update);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_gic_v3_set_affinity);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_gic_v3_affinity_init);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_show_suspend_epoch_val);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_show_resume_epoch_val);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_show_max_freq);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_freq_table_limits);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_sched_newidle_balance);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_sched_nohz_balancer_kick);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_find_busiest_queue);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_migrate_queued_task);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_find_energy_efficient_cpu);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_set_sugov_sched_attr);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_set_iowait);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_set_sugov_update);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_sched_setaffinity);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_update_cpus_allowed);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_set_skip_swapcache_flags);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_set_gfp_zone_flags);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_set_readahead_gfp_mask);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_preempt_disable);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_preempt_enable);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_irqs_disable);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_irqs_enable);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_cpu_cgroup_attach);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_cpu_cgroup_can_attach);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_map_util_freq);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_em_cpu_energy);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ftrace_oops_enter);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ftrace_oops_exit);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ftrace_size_check);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ftrace_format_check);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ftrace_dump_buffer);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ufs_fill_prdt);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ufs_prepare_command);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ufs_update_sysfs);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ufs_send_command);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ufs_compl_command);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cgroup_set_task);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_syscall_prctl_finished);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ufs_send_uic_command);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ufs_send_tm_command);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ufs_check_int_errors);
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