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Message-ID: <20201015135345.6b29e8c0@gandalf.local.home>
Date: Thu, 15 Oct 2020 13:53:45 -0400
From: Steven Rostedt <rostedt@...dmis.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: LKML <linux-kernel@...r.kernel.org>,
Ingo Molnar <mingo@...nel.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Masami Hiramatsu <mhiramat@...nel.org>,
Tom Zanussi <zanussi@...nel.org>
Subject: [GIT PULL] tracing: Updates for 5.10
Linus,
Updates for tracing and bootconfig:
- Add support for "bool" type in synthetic events
- Add per instance tracing for bootconfig
- Support perf-style return probe ("SYMBOL%return") in kprobes and uprobes
- Allow for kprobes to be enabled earlier in boot up
- Added tracepoint helper function to allow testing if tracepoints are
enabled in headers
- Synthetic events can now have dynamic strings (variable length)
- Various fixes and cleanups
Please pull the latest trace-v5.10 tree, which can be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git
trace-v5.10
Tag SHA1: 26ab68b2a2fa3a0e3724d4b025ca3a15dd7ec1f3
Head SHA1: 6107742d15832011cd0396d821f3225b52551f1f
Axel Rasmussen (1):
tracing: support "bool" type in synthetic trace events
Dan Carpenter (1):
tracing: remove a pointless assignment
Davidlohr Bueso (1):
fgraph: Convert ret_stack tasklist scanning to rcu
Gaurav Kohli (1):
tracing: Fix race in trace_open and buffer resize call
Jarkko Sakkinen (1):
kprobes: Use module_name() macro
Masami Hiramatsu (21):
tools/bootconfig: Show bootconfig compact tree from bootconfig file
tools/bootconfig: Add list option
tools/bootconfig: Make all functions static
tools/bootconfig: Add a script to generate ftrace shell-command from bootconfig
tools/bootconfig: Add a script to generates bootconfig from ftrace
tools/bootconfig: Add --init option for bconf2ftrace.sh
tracing/boot: Add per-instance tracing_on option support
Documentation: tracing: Add tracing_on option to boot-time tracer
tracing/kprobes: Support perf-style return probe
tracing/uprobes: Support perf-style return probe
Documentation: tracing: Add %return suffix description
Documentation: tracing: boot: Add an example of tracing function-calls
selftests/ftrace: Add %return suffix tests
kprobes: Init kprobes in early_initcall
tracing: Define event fields early stage
tracing: Enable adding dynamic events early stage
tracing: Enable creating new instance early boot
tracing/boot, kprobe, synth: Initialize boot-time tracing earlier
Documentation: tracing: Add the startup timing of boot-time tracing
tracing/boot: Initialize per-instance event list in early boot
tracing/boot: Add ftrace.instance.*.alloc_snapshot option
Qiujun Huang (2):
ftrace: Fix some typos in comment
tracing: Fix some typos in comments
Randy Dunlap (1):
tracing: Delete repeated words in comments
Steven Rostedt (VMware) (8):
tracepoints: Add helper to test if tracepoint is enabled in a header
mm/page_ref: Convert the open coded tracepoint enabled to the new helper
x86: Use tracepoint_enabled() for msr tracepoints instead of open coding it
tracing: Change synthetic event string format to limit printed length
ftrace: Simplify the hash calculation
ftrace: Format variable declarations of ftrace_allocate_records
tracing: Fix synthetic print fmt check for use of __get_str()
tracing: Check return value of __create_val_fields() before using its result
Sudip Mukherjee (1):
tracing: Remove a pointless assignment
Tom Zanussi (13):
tracing: Change STR_VAR_MAX_LEN
tracing: Fix parse_synth_field() error handling
tracing: Save normal string variables
tracing: Add support for dynamic strings to synthetic events
tracing: Add README information for synthetic_events file
selftests/ftrace: Add test case for synthetic event dynamic strings
tracing: Don't show dynamic string internals in synthetic event description
tracing: Move is_good_name() from trace_probe.h to trace.h
tracing: Check that the synthetic event and field names are legal
tracing: Add synthetic event error logging
selftests/ftrace: Change synthetic event name for inter-event-combined test
tracing: Handle synthetic event array field type checking correctly
selftests/ftrace: Add test case for synthetic event syntax errors
Wei Yang (6):
tracing: toplevel d_entry already initialized
tracing: make tracing_init_dentry() returns an integer instead of a d_entry pointer
ftrace: Use fls() to get the bits for dup_hash()
ftrace: Simplify the dyn_ftrace->flags macro
ftrace: Simplify the calculation of page number for ftrace_page->records
ftrace: ftrace_global_list is renamed to ftrace_ops_list
Xianting Tian (1):
tracing: Use __this_cpu_read() in trace_buffered_event_enable()
----
Documentation/trace/boottime-trace.rst | 38 ++
Documentation/trace/events.rst | 15 +-
Documentation/trace/histogram.rst | 18 +
Documentation/trace/kprobetrace.rst | 2 +
Documentation/trace/tracepoints.rst | 27 ++
Documentation/trace/uprobetracer.rst | 2 +
MAINTAINERS | 1 +
arch/x86/include/asm/msr.h | 20 +-
include/linux/ftrace.h | 11 +-
include/linux/page_ref.h | 42 +--
include/linux/tracepoint-defs.h | 34 ++
kernel/kprobes.c | 2 +-
kernel/trace/fgraph.c | 8 +-
kernel/trace/ftrace.c | 24 +-
kernel/trace/ring_buffer.c | 10 +
kernel/trace/synth_event_gen_test.c | 18 +-
kernel/trace/trace.c | 111 ++++--
kernel/trace/trace.h | 31 +-
kernel/trace/trace_boot.c | 23 +-
kernel/trace/trace_dynevent.c | 10 +-
kernel/trace/trace_events.c | 140 ++++---
kernel/trace/trace_events_hist.c | 45 ++-
kernel/trace/trace_events_synth.c | 413 ++++++++++++++++++---
kernel/trace/trace_functions.c | 22 +-
kernel/trace/trace_functions_graph.c | 8 +-
kernel/trace/trace_hwlat.c | 8 +-
kernel/trace/trace_kprobe.c | 41 +-
kernel/trace/trace_printk.c | 8 +-
kernel/trace/trace_probe.h | 14 +-
kernel/trace/trace_stack.c | 12 +-
kernel/trace/trace_stat.c | 8 +-
kernel/trace/trace_synth.h | 6 +-
kernel/trace/trace_uprobe.c | 24 +-
kernel/trace/tracing_map.c | 2 +-
tools/bootconfig/main.c | 147 +++++---
tools/bootconfig/scripts/bconf2ftrace.sh | 199 ++++++++++
tools/bootconfig/scripts/ftrace.sh | 109 ++++++
tools/bootconfig/scripts/ftrace2bconf.sh | 244 ++++++++++++
tools/bootconfig/scripts/xbc.sh | 56 +++
.../ftrace/test.d/kprobe/kprobe_syntax_errors.tc | 6 +
.../test.d/kprobe/kretprobe_return_suffix.tc | 21 ++
.../ftrace/test.d/kprobe/uprobe_syntax_errors.tc | 6 +
.../trigger-inter-event-combined-hist.tc | 8 +-
.../trigger-synthetic-event-dynstring.tc | 31 ++
.../trigger-synthetic_event_syntax_errors.tc | 19 +
45 files changed, 1709 insertions(+), 335 deletions(-)
create mode 100755 tools/bootconfig/scripts/bconf2ftrace.sh
create mode 100644 tools/bootconfig/scripts/ftrace.sh
create mode 100755 tools/bootconfig/scripts/ftrace2bconf.sh
create mode 100644 tools/bootconfig/scripts/xbc.sh
create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_return_suffix.tc
create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-dynstring.tc
create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic_event_syntax_errors.tc
---------------------------
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