linux/kernel/trace
Linus Torvalds b70100f2e6 Probes updates for v6.6:
- kprobes: use struct_size() for variable size kretprobe_instance
   data structure.
 
 - eprobe: Simplify trace_eprobe list iteration.
 
 - probe events: Data structure field access support on BTF argument.
   . Update BTF argument support on the functions in the kernel loadable
     modules (only loaded modules are supported).
   . Move generic BTF access function (search function prototype and get
     function parameters) to a separated file.
   . Add a function to search a member of data structure in BTF.
   . Support accessing BTF data structure member from probe args by
     C-like arrow('->') and dot('.') operators. e.g.
     't sched_switch next=next->pid vruntime=next->se.vruntime'
   . Support accessing BTF data structure member from $retval. e.g.
       'f getname_flags%return +0($retval->name):string'
   . Add string type checking if BTF type info is available.
     This will reject if user specify ":string" type for non "char
     pointer" type.
   . Automatically assume the fprobe event as a function return event
     if $retval is used.
 
 - selftests/ftrace: Add BTF data field access test cases.
 
 - Documentation: Update fprobe event example with BTF data field.
 -----BEGIN PGP SIGNATURE-----
 
 iQFPBAABCgA5FiEEh7BulGwFlgAOi5DV2/sHvwUrPxsFAmTycQkbHG1hc2FtaS5o
 aXJhbWF0c3VAZ21haWwuY29tAAoJENv7B78FKz8bqS8H/jeR1JhOzIXOvTw7XCFm
 MrSY/SKi8tQfV6lau2UmoYdbYvYjpqL34XLOQPNf2/lrcL2M9aNYXk9fbhlW8enx
 vkMyKQ0E5anixkF4vsTbEl9DaprxbpsPVACmZ/7VjQk2JuXIdyaNk8hno9LgIcEq
 udztb0o2HmDFqAXfRi0LvlSTAIwvXZ+usmEvYpaq1g2WwrCe7NHEYl42vMpj+h4H
 9l4t5rA9JyPPX4yQUjtKGW5eRVTwDTm/Gn6DRzYfYzkkiBZv27qfovzBOt672LgG
 hyot+u7XeKvZx3jjnF7+mRWoH/m0dqyhyi/nPhpIE09VhgwclrbGAcDuR1x6sp01
 PHY=
 =hBDN
 -----END PGP SIGNATURE-----

Merge tag 'probes-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull probes updates from Masami Hiramatsu:

 - kprobes: use struct_size() for variable size kretprobe_instance data
   structure.

 - eprobe: Simplify trace_eprobe list iteration.

 - probe events: Data structure field access support on BTF argument.

     - Update BTF argument support on the functions in the kernel
       loadable modules (only loaded modules are supported).

     - Move generic BTF access function (search function prototype and
       get function parameters) to a separated file.

     - Add a function to search a member of data structure in BTF.

     - Support accessing BTF data structure member from probe args by
       C-like arrow('->') and dot('.') operators. e.g.
          't sched_switch next=next->pid vruntime=next->se.vruntime'

     - Support accessing BTF data structure member from $retval. e.g.
          'f getname_flags%return +0($retval->name):string'

     - Add string type checking if BTF type info is available. This will
       reject if user specify ":string" type for non "char pointer"
       type.

     - Automatically assume the fprobe event as a function return event
       if $retval is used.

 - selftests/ftrace: Add BTF data field access test cases.

 - Documentation: Update fprobe event example with BTF data field.

* tag 'probes-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  Documentation: tracing: Update fprobe event example with BTF field
  selftests/ftrace: Add BTF fields access testcases
  tracing/fprobe-event: Assume fprobe is a return event by $retval
  tracing/probes: Add string type check with BTF
  tracing/probes: Support BTF field access from $retval
  tracing/probes: Support BTF based data structure field access
  tracing/probes: Add a function to search a member of a struct/union
  tracing/probes: Move finding func-proto API and getting func-param API to trace_btf
  tracing/probes: Support BTF argument on module functions
  tracing/eprobe: Iterate trace_eprobe directly
  kernel: kprobes: Use struct_size()
2023-09-02 11:10:50 -07:00
..
rv tracing/tools: Updates for 6.4 2023-04-28 16:11:26 -07:00
blktrace.c block: remove more NULL checks after bdev_get_queue() 2023-02-21 09:23:22 -07:00
bpf_trace.c bpf: Add bpf_get_func_ip helper support for uprobe link 2023-08-21 15:51:25 -07:00
bpf_trace.h
error_report-traces.c
fgraph.c tracing: arm64: Avoid missing-prototype warnings 2023-07-12 12:06:04 -04:00
fprobe.c Probe fixes for 6.5-rc1, the 2nd set: 2023-07-16 12:13:51 -07:00
ftrace_internal.h tracing: arm64: Avoid missing-prototype warnings 2023-07-12 12:06:04 -04:00
ftrace.c ftrace: Use LIST_HEAD to initialize clear_hash 2023-09-01 21:18:38 -04:00
Kconfig Probes updates for v6.5: 2023-06-30 10:44:53 -07:00
kprobe_event_gen_test.c tracing: Fix wrong return in kprobe_event_gen_test.c 2023-03-19 12:20:48 -04:00
Makefile tracing/probes: Move finding func-proto API and getting func-param API to trace_btf 2023-08-23 09:39:45 +09:00
pid_list.c
pid_list.h
power-traces.c
preemptirq_delay_test.c
rethook.c Probes fixes and clean ups for v6.5-rc1: 2023-07-12 12:01:16 -07:00
ring_buffer_benchmark.c ring_buffer: Remove unused "event" parameter 2022-11-23 19:08:30 -05:00
ring_buffer.c ring_buffer: Use try_cmpxchg instead of cmpxchg 2023-07-30 18:11:45 -04:00
rpm-traces.c
synth_event_gen_test.c tracing: Always use canonical ftrace path 2023-02-18 14:34:09 -05:00
trace_benchmark.c tracing: Add numeric delta time to the trace event benchmark 2022-09-26 13:01:09 -04:00
trace_benchmark.h tracing: Add numeric delta time to the trace event benchmark 2022-09-26 13:01:09 -04:00
trace_boot.c tracing/boot: Test strscpy() against less than zero for error 2023-07-05 10:30:49 -04:00
trace_branch.c
trace_btf.c tracing/probes: Add a function to search a member of a struct/union 2023-08-23 09:40:16 +09:00
trace_btf.h tracing/probes: Add a function to search a member of a struct/union 2023-08-23 09:40:16 +09:00
trace_clock.c
trace_dynevent.c tracing: Free buffers when a used dynamic event is removed 2022-11-23 19:07:12 -05:00
trace_dynevent.h
trace_entries.h tracing: Add back FORTIFY_SOURCE logic to kernel_stack event structure 2023-07-30 18:11:44 -04:00
trace_eprobe.c tracing/probes: Support BTF argument on module functions 2023-08-23 09:39:15 +09:00
trace_event_perf.c tracing/perf: Use strndup_user instead of kzalloc/strncpy_from_user 2022-11-23 19:08:31 -05:00
trace_events_filter_test.h
trace_events_filter.c tracing/filters: Fix coding style issues 2023-09-01 21:27:23 -04:00
trace_events_hist.c tracing/histograms: Return an error if we fail to add histogram to hist_vars list 2023-07-23 11:18:52 -04:00
trace_events_inject.c tracing: Replace all non-returning strlcpy with strscpy 2023-05-26 13:52:19 -07:00
trace_events_synth.c tracing/synthetic: Allocate one additional element for size 2023-08-16 16:37:07 -04:00
trace_events_trigger.c tracing: Fix kernel-doc warnings in trace_events_trigger.c 2023-07-28 19:59:03 -04:00
trace_events_user.c tracing/user_events: Optimize safe list traversals 2023-08-22 05:22:10 -04:00
trace_events.c eventfs: Move tracing/events to eventfs 2023-07-31 11:55:55 -04:00
trace_export.c tracing: Add back FORTIFY_SOURCE logic to kernel_stack event structure 2023-07-30 18:11:44 -04:00
trace_fprobe.c tracing/fprobe-event: Assume fprobe is a return event by $retval 2023-08-23 09:41:32 +09:00
trace_functions_graph.c function_graph: Support recording and printing the return value of function 2023-06-20 18:38:37 -04:00
trace_functions.c
trace_hwlat.c tracing: Remove extra space at the end of hwlat_detector/mode 2023-09-01 21:00:00 -04:00
trace_irqsoff.c tracing: Fix memleak due to race between current_tracer and trace 2023-08-17 13:49:37 -04:00
trace_kdb.c
trace_kprobe_selftest.c tracing: arm64: Avoid missing-prototype warnings 2023-07-12 12:06:04 -04:00
trace_kprobe_selftest.h
trace_kprobe.c Probes updates for v6.6: 2023-09-02 11:10:50 -07:00
trace_mmiotrace.c
trace_nop.c
trace_osnoise.c tracing/timerlat: Add user-space interface 2023-06-22 10:39:56 -04:00
trace_output.c Tracing updates for 6.5: 2023-06-30 10:33:17 -07:00
trace_output.h tracing: Add "fields" option to show raw trace event fields 2023-03-29 06:52:08 -04:00
trace_preemptirq.c cpuidle: tracing, preempt: Squash _rcuidle tracing 2023-01-31 15:01:46 +01:00
trace_printk.c
trace_probe_kernel.h tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails 2023-07-14 17:04:58 +09:00
trace_probe_tmpl.h tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails 2023-07-14 17:04:58 +09:00
trace_probe.c tracing/probes: Add string type check with BTF 2023-08-23 09:41:13 +09:00
trace_probe.h Probes updates for v6.6: 2023-09-02 11:10:50 -07:00
trace_recursion_record.c
trace_sched_switch.c
trace_sched_wakeup.c tracing: Fix memleak due to race between current_tracer and trace 2023-08-17 13:49:37 -04:00
trace_selftest_dynamic.c
trace_selftest.c tracing: Have function_graph selftest call cond_resched() 2023-05-28 21:15:46 -04:00
trace_seq.c tracing: Fix kernel-doc warnings in trace_seq.c 2023-07-28 19:59:04 -04:00
trace_stack.c
trace_stat.c
trace_stat.h
trace_synth.h tracing: Allow synthetic events to pass around stacktraces 2023-01-25 10:31:24 -05:00
trace_syscalls.c tracing: bpf: use struct trace_entry in struct syscall_tp_t 2023-08-01 10:53:28 -07:00
trace_uprobe.c Probes updates for v6.6: 2023-09-02 11:10:50 -07:00
trace.c Probes updates for v6.6: 2023-09-02 11:10:50 -07:00
trace.h Tracing updates for 6.6: 2023-09-01 16:34:25 -07:00
tracing_map.c tracing: Remove unused variable 'dups' 2022-10-03 12:20:31 -04:00
tracing_map.h tracing: Remove unused extern declaration tracing_map_set_field_descr() 2023-07-23 11:08:14 -04:00