Kenny Yu 376040e473 bpf: Add bpf_copy_from_user_task() helper ... This adds a helper for bpf programs to read the memory of other tasks. As an example use case at Meta, we are using a bpf task iterator program and this new helper to print C++ async stack traces for all threads of a given process. Signed-off-by: Kenny Yu <kennyyu@fb.com> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20220124185403.468466-3-kennyyu@fb.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2022-01-24 19:59:27 -08:00
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blktrace.c	blktrace: switch trace spinlock to a raw spinlock	2021-12-20 13:50:14 -07:00
bpf_trace.c	bpf: Add bpf_copy_from_user_task() helper	2022-01-24 19:59:27 -08:00
bpf_trace.h
error_report-traces.c	tracing: add error_report_end trace point	2021-02-26 09:41:02 -08:00
fgraph.c	x86/ftrace: Make function graph use ftrace directly	2021-10-20 23:44:43 -04:00
ftrace_internal.h
ftrace.c	Tracing updates for 5.17:	2022-01-16 10:15:32 +02:00
Kconfig	ftrace: Add test to make sure compiled time sorts work	2022-01-13 16:23:05 -05:00
kprobe_event_gen_test.c
Makefile	tracing: Place trace_pid_list logic into abstract functions	2021-10-05 17:30:08 -04:00
pid_list.c	tracing: Initialize upper and lower vars in pid_list_refill_irq()	2021-10-07 09:56:38 -04:00
pid_list.h	tracing: Create a sparse bitmask for pid filtering	2021-10-05 17:38:45 -04:00
power-traces.c
preemptirq_delay_test.c	kernel: trace: preemptirq_delay_test: add cpu affinity	2021-02-02 17:02:07 -05:00
ring_buffer_benchmark.c
ring_buffer.c	ring-buffer: make use of the helper function kthread_run_on_cpu()	2022-01-15 16:30:23 +02:00
rpm-traces.c
synth_event_gen_test.c	tracing: Fix various typos in comments	2021-03-23 14:08:18 -04:00
trace_benchmark.c	tracing: Fix some typos in comments	2020-11-10 20:39:40 -05:00
trace_benchmark.h
trace_boot.c	tracing: Fix missing trace_boot_init_histograms kstrdup NULL checks	2021-10-26 09:18:10 -04:00
trace_branch.c	tracing: Merge irqflags + preempt counter.	2021-02-02 17:02:06 -05:00
trace_clock.c	tracing: Do no increment trace_clock_global() by one	2021-06-18 09:10:00 -04:00
trace_dynevent.c	tracing: Disable "other" permission bits in the tracefs files	2021-10-08 18:08:43 -04:00
trace_dynevent.h	tracing: Add DYNAMIC flag for dynamic events	2021-08-18 18:10:32 -04:00
trace_entries.h	trace: Add timerlat tracer	2021-06-25 19:57:24 -04:00
trace_eprobe.c	tracing: Remove ops param from event_command reg()/unreg() callbacks	2022-01-10 11:09:11 -05:00
trace_event_perf.c	tracing: Show size of requested perf buffer	2021-10-27 12:25:09 -04:00
trace_events_filter_test.h
trace_events_filter.c	tracing: Add ustring operation to filtering string pointers	2022-01-14 03:42:24 -05:00
trace_events_hist.c	tracing: Remove ops param from event_command reg()/unreg() callbacks	2022-01-10 11:09:11 -05:00
trace_events_inject.c	tracing: Support __rel_loc relative dynamic data location attribute	2021-12-06 15:37:21 -05:00
trace_events_synth.c	Tracing updates for 5.17:	2022-01-16 10:15:32 +02:00
trace_events_trigger.c	tracing: Add helper functions to simplify event_command.parse() callback handling	2022-01-10 11:09:11 -05:00
trace_events.c	tracing: Remove duplicate warnings when calling trace_create_file()	2022-01-13 17:02:42 -05:00
trace_export.c	tracing: Fix some typos in comments	2020-11-10 20:39:40 -05:00
trace_functions_graph.c	tracing: in_irq() cleanup	2021-10-13 18:19:41 -04:00
trace_functions.c	ftrace: disable preemption when recursion locked	2021-10-27 11:21:49 -04:00
trace_hwlat.c	trace/hwlat: make use of the helper function kthread_run_on_cpu()	2022-01-15 16:30:24 +02:00
trace_irqsoff.c	tracing: Merge irqflags + preempt counter.	2021-02-02 17:02:06 -05:00
trace_kdb.c	kdb: Rename members of struct kdbtab_t	2021-07-27 17:05:06 +01:00
trace_kprobe_selftest.c
trace_kprobe_selftest.h
trace_kprobe.c	Tracing updates for 5.17:	2022-01-16 10:15:32 +02:00
trace_mmiotrace.c	tracing: Remove definition of DEBUG in trace_mmiotrace.c	2021-02-02 17:02:07 -05:00
trace_nop.c
trace_osnoise.c	Tracing updates for 5.17:	2022-01-16 10:15:32 +02:00
trace_output.c	tracing: Account bottom half disabled sections.	2022-01-13 16:23:04 -05:00
trace_output.h	ftrace: Add recording of functions that caused recursion	2020-11-06 08:42:26 -05:00
trace_preemptirq.c	lockdep: fix order in trace_hardirqs_off_caller()	2020-09-14 10:08:07 +02:00
trace_printk.c	tracing: Disable "other" permission bits in the tracefs files	2021-10-08 18:08:43 -04:00
trace_probe_tmpl.h	tracing/probes: Have process_fetch_insn() take a void * instead of pt_regs	2021-08-19 09:09:03 -04:00
trace_probe.c	tracing/probes: check the return value of kstrndup() for pbuf	2022-01-13 16:23:04 -05:00
trace_probe.h	tracing: Add a probe that attaches to trace events	2021-08-20 14:18:40 -04:00
trace_recursion_record.c	tracing: Disable "other" permission bits in the tracefs files	2021-10-08 18:08:43 -04:00
trace_sched_switch.c
trace_sched_wakeup.c	tracing: Change variable type as bool for clean-up	2021-06-30 09:19:14 -04:00
trace_selftest_dynamic.c
trace_selftest.c	tracing: Fix selftest config check for function graph start up test	2021-10-21 14:18:48 -04:00
trace_seq.c	tracing: Fix various typos in comments	2021-03-23 14:08:18 -04:00
trace_stack.c	tracing: Disable "other" permission bits in the tracefs files	2021-10-08 18:08:43 -04:00
trace_stat.c	tracing: Disable "other" permission bits in the tracefs files	2021-10-08 18:08:43 -04:00
trace_stat.h
trace_synth.h	tracing: synth events: increase max fields count	2021-09-08 15:29:16 -04:00
trace_syscalls.c	tracing: Have syscall trace events use trace_event_buffer_lock_reserve()	2022-01-13 16:23:05 -05:00
trace_uprobe.c	Tracing updates for 5.17:	2022-01-16 10:15:32 +02:00
trace.c	Tracing updates for 5.17:	2022-01-16 10:15:32 +02:00
trace.h	tracing: Add helper functions to simplify event_command.parse() callback handling	2022-01-10 11:09:11 -05:00
tracing_map.c	tracing: Fix a kmemleak false positive in tracing_map	2021-12-01 21:04:34 -05:00
tracing_map.h	tracing: Fix some typos in comments	2020-11-10 20:39:40 -05:00