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Subject[GIT PULL] tracing: Updates for 5.2
Linus,

The major changes in this tracing update includes:

- Removing of non-DYNAMIC_FTRACE from 32bit x86

- Removing of mcount support from x86

- Emulating a call from int3 on x86_64, fixes live kernel patching

- Consolidated Tracing Error logs file

Minor updates:

- Removal of klp_check_compiler_support()

- kdb ftrace dumping output changes

- Accessing and creating ftrace instances from inside the kernel

- Clean up of #define if macro

- Introduction of TRACE_EVENT_NOP() to disable trace events based on config
options

And other minor fixes and clean ups

*** NOTE *** This has conflicts with your tree, with the following files:

Conflicts:
arch/x86/entry/entry_64.S
include/linux/compiler.h

I did a merge against the commit d7a02fa0a8f9ec in your tree, and put
my conflict resolution at my branch in the same tree as this pull request:

ftrace/conflicts


Please pull the latest trace-v5.2 tree, which can be found at:


git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git
trace-v5.2

Tag SHA1: 666ff819de73a218eae4b7850ce9112942b40d4e
Head SHA1: 693713cbdb3a4bda5a8a678c31f06560bbb14657

Anders Roxell (1):
tracing: Allow RCU to run between postponed startup tests

Colin Ian King (1):
tracing: Fix white space issues in parse_pred() function

Divya Indi (1):
tracing: Kernel access to Ftrace instances

Douglas Anderson (3):
tracing: kdb: The skip_lines parameter should have been skip_entries
tracing: Add trace_total_entries() / trace_total_entries_cpu()
tracing: kdb: Allow ftdump to skip all but the last few entries

Elazar Leibovich (1):
tracing: Fix partial reading of trace event's id file

Gustavo A. R. Silva (1):
tracing: Replace kzalloc with kcalloc

Jiri Kosina (1):
livepatch: Remove klp_check_compiler_support()

Josh Poimboeuf (1):
x86_64: Add gap to int3 to allow for call emulation

Linus Torvalds (1):
tracing: Simplify "if" macro code

Masami Hiramatsu (5):
tracing: Use tracing error_log with probe events
selftests/ftrace: Add error_log testcase for probe errors
tracing: uprobes: Re-enable $comm support for uprobe events
tracing: probeevent: Do not accumulate on ret variable
tracing: probeevent: Fix to make the type of $comm string

Peter Zijlstra (2):
x86_64: Allow breakpoints to emulate call instructions
ftrace/x86_64: Emulate call function while updating in breakpoint handler

Rasmus Villemoes (1):
tracing: Eliminate const char[] auto variables

Srivatsa S. Bhat (VMware) (1):
tracing: Fix documentation about disabling options using trace_options

Steven Rostedt (VMware) (10):
tracing: Add trace_array parameter to create_event_filter()
tracing: Have histogram code pass around trace_array for error handling
tracing: Have the error logs show up in the proper instances
ftrace: Remove ASSIGN_OPS_HASH() macro from ftrace.c
ftrace: Do not process STUB functions in ftrace_ops_list_func()
function_graph: Have selftest also emulate tr->reset() as it did with tr->init()
function_graph: Place ftrace_graph_entry_stub() prototype in include/linux/ftrace.h
ftrace/x86_32: Remove support for non DYNAMIC_FTRACE
ftrace/x86: Remove mcount support
x86: Hide the int3_emulate_call/jmp functions from UML

Tom Zanussi (9):
tracing: Add tracing error log
tracing: Save the last hist command's associated event name
tracing: Use tracing error_log with hist triggers
tracing: Use tracing error_log with trace event filters
selftests/ftrace: Move kprobe/uprobe check_error() to test.d/functions
selftests/ftrace: Remove trigger-extended-error-support testcase
selftests/ftrace: Add tracing/error_log testcase
tracing: Add tracing/error_log Documentation
tracing: Add error_log to README

Yafang Shao (3):
tracing: introduce TRACE_EVENT_NOP()
sched/fair: do not expose some tracepoints to user if CONFIG_SCHEDSTATS is not set
rcu: validate arguments for rcu tracepoints

Yangtao Li (1):
ring-buffer: Fix mispelling of Calculate

YueHaibing (1):
ring-buffer: Fix ring buffer size in rb_write_something()

----
Documentation/trace/ftrace.rst | 31 ++
Documentation/trace/histogram.rst | 16 +-
arch/nds32/kernel/ftrace.c | 1 -
arch/parisc/kernel/ftrace.c | 1 -
arch/powerpc/include/asm/livepatch.h | 5 -
arch/s390/include/asm/livepatch.h | 5 -
arch/x86/Kconfig | 11 +
arch/x86/entry/entry_64.S | 18 +-
arch/x86/include/asm/ftrace.h | 8 +-
arch/x86/include/asm/livepatch.h | 8 -
arch/x86/include/asm/text-patching.h | 30 ++
arch/x86/kernel/ftrace.c | 32 +-
arch/x86/kernel/ftrace_32.S | 75 +---
arch/x86/kernel/ftrace_64.S | 28 +-
include/linux/compiler.h | 35 +-
include/linux/ftrace.h | 2 +
include/linux/tracepoint.h | 15 +
include/trace/define_trace.h | 8 +
include/trace/events/rcu.h | 81 ++--
include/trace/events/sched.h | 21 +-
kernel/livepatch/core.c | 8 -
kernel/rcu/rcu.h | 9 +-
kernel/rcu/tree.c | 8 +-
kernel/trace/ftrace.c | 9 +-
kernel/trace/ring_buffer.c | 2 +-
kernel/trace/ring_buffer_benchmark.c | 2 +-
kernel/trace/trace.c | 417 ++++++++++++++++++---
kernel/trace/trace.h | 13 +-
kernel/trace/trace_events.c | 4 +-
kernel/trace/trace_events_filter.c | 84 +++--
kernel/trace/trace_events_hist.c | 268 +++++++------
kernel/trace/trace_events_trigger.c | 3 +-
kernel/trace/trace_kdb.c | 61 +--
kernel/trace/trace_kprobe.c | 77 ++--
kernel/trace/trace_probe.c | 291 +++++++++-----
kernel/trace/trace_probe.h | 78 +++-
kernel/trace/trace_probe_tmpl.h | 2 +-
kernel/trace/trace_selftest.c | 5 +-
kernel/trace/trace_uprobe.c | 57 ++-
.../ftrace/test.d/ftrace/tracing-error-log.tc | 19 +
tools/testing/selftests/ftrace/test.d/functions | 12 +
.../ftrace/test.d/kprobe/kprobe_syntax_errors.tc | 85 +++++
.../ftrace/test.d/kprobe/uprobe_syntax_errors.tc | 23 ++
.../inter-event/trigger-extended-error-support.tc | 28 --
44 files changed, 1345 insertions(+), 651 deletions(-)
create mode 100644 tools/testing/selftests/ftrace/test.d/ftrace/tracing-error-log.tc
create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc
create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/uprobe_syntax_errors.tc
delete mode 100644 tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-extended-error-support.tc
---------------------------

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