Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf updates from Ingo Molnar:
"The main kernel side changes were:

- Modernize the kprobe and up

Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf updates from Ingo Molnar:
"The main kernel side changes were:

- Modernize the kprobe and uprobe creation/destruction tooling ABIs:

The existing text based APIs (kprobe_events and uprobe_events in
tracefs), are naive, limited ABIs in that they require user-space
to clean up after themselves, which is both difficult and fragile
if the tool is buggy or exits unexpectedly. In other words they are
not really suited for modern, robust tooling.

So introduce a modern, file descriptor based ABI that does not have
these limitations: introduce the 'perf_kprobe' and 'perf_uprobe'
PMUs and extend the perf_event_open() syscall to create events with
a kprobe/uprobe attached to them. These [k,u]probe are associated
with this file descriptor, so they are not available in tracefs.

(Song Liu)

- Intel Cannon Lake CPU support (Harry Pan)

- Intel PT cleanups (Alexander Shishkin)

- Improve the performance of pinned/flexible event groups by using RB
trees (Alexey Budankov)

- Add PERF_EVENT_IOC_MODIFY_ATTRIBUTES which allows the modification
of hardware breakpoints, which new ABI variant massively speeds up
existing tooling that uses hardware breakpoints to instrument (and
debug) memory usage.

(Milind Chabbi, Jiri Olsa)

- Various Intel PEBS handling fixes and improvements, and other Intel
PMU improvements (Kan Liang)

- Various perf core improvements and optimizations (Peter Zijlstra)

- ... misc cleanups, fixes and updates.

There's over 200 tooling commits, here's an (imperfect) list of
highlights:

- 'perf annotate' improvements:

* Recognize and handle jumps to other functions as calls, which
improves the navigation along jumps and back. (Arnaldo Carvalho
de Melo)

* Add the 'P' hotkey in TUI annotation to dump annotation output
into a file, to ease e-mail reporting of annotation details.
(Arnaldo Carvalho de Melo)

* Add an IPC/cycles column to the TUI (Jin Yao)

* Improve s390 assembly annotation (Thomas Richter)

* Refactor the output formatting logic to better separate it into
interactive and non-interactive features and add the --stdio2
output variant to demonstrate this. (Arnaldo Carvalho de Melo)

- 'perf script' improvements:

* Add Python 3 support (Jaroslav Škarvada)

* Add --show-round-event (Jiri Olsa)

- 'perf c2c' improvements:

* Add NUMA analysis support (Jiri Olsa)

- 'perf trace' improvements:

* Improve PowerPC support (Ravi Bangoria)

- 'perf inject' improvements:

* Integrate ARM CoreSight traces (Robert Walker)

- 'perf stat' improvements:

* Add the --interval-count option (yuzhoujian)

* Add the --timeout option (yuzhoujian)

- 'perf sched' improvements (Changbin Du)

- Vendor events improvements :

* Add IBM s390 vendor events (Thomas Richter)

* Add and improve arm64 vendor events (John Garry, Ganapatrao
Kulkarni)

* Update POWER9 vendor events (Sukadev Bhattiprolu)

- Intel PT tooling improvements (Adrian Hunter)

- PMU handling improvements (Agustin Vega-Frias)

- Record machine topology in perf.data (Jiri Olsa)

- Various overwrite related cleanups (Kan Liang)

- Add arm64 dwarf post unwind support (Kim Phillips, Jean Pihet)

- ... and lots of other changes, cleanups and fixes, see the shortlog
and Git history for details"

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (262 commits)
perf/x86/intel: Enable C-state residency events for Cannon Lake
perf/x86/intel: Add Cannon Lake support for RAPL profiling
perf/x86/pt, coresight: Clean up address filter structure
perf vendor events s390: Add JSON files for IBM z14
perf vendor events s390: Add JSON files for IBM z13
perf vendor events s390: Add JSON files for IBM zEC12 zBC12
perf vendor events s390: Add JSON files for IBM z196
perf vendor events s390: Add JSON files for IBM z10EC z10BC
perf mmap: Be consistent when checking for an unmaped ring buffer
perf mmap: Fix accessing unmapped mmap in perf_mmap__read_done()
perf build: Fix check-headers.sh opts assignment
perf/x86: Update rdpmc_always_available static key to the modern API
perf annotate: Use absolute addresses to calculate jump target offsets
perf annotate: Defer searching for comma in raw line till it is needed
perf annotate: Support jumping from one function to another
perf annotate: Add "_local" to jump/offset validation routines
perf python: Reference Py_None before returning it
perf annotate: Mark jumps to outher functions with the call arrow
perf annotate: Pass function descriptor to its instruction parsing routines
perf annotate: No need to calculate notes->start twice
...

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Merge tag 'perf-core-for-mingo-4.17-20180319' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

- Fixes

Merge tag 'perf-core-for-mingo-4.17-20180319' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

- Fixes for problems experienced with new GCC 8 warnings, that treated
as errors, broke the build, related to snprintf and casting issues.
(Arnaldo Carvalho de Melo, Jiri Olsa, Josh Poinboeuf)

- Fix build of new breakpoint 'perf test' entry with clang < 6, noticed
on fedora 25, 26 and 27 (Arnaldo Carvalho de Melo)

- Workaround problem with symbol resolution in 'perf annotate', using
the symbol name already present in the objdump output (Arnaldo Carvalho de Melo)

- Document 'perf top --ignore-vmlinux' (Arnaldo Carvalho de Melo)

- Fix out of bounds access on array fd when cnt is 100 in one of the
'perf test' entries, detected using 'cpptest' (Colin Ian King)

- Add support for the forced leader feature, i.e. 'perf report --group'
for a group of events not really grouped when scheduled (without using
{} to enclose the list of events in the command line) in pipe mode,
e.g.:

$ perf record -e cycles,instructions -o - kill | perf report --group -i -

- Use right type to access array elements in 'perf probe' (Masami Hiramatsu)

- Update POWER9 vendor events (those described in JSON format) (Sukadev Bhattiprolu)

- Discard head in overwrite_rb_find_range() (Yisheng Xie)

- Avoid setting 'quiet' to 'true' unnecessarily (Yisheng Xie)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

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perf tools: Add mem2node object

Adding mem2node object to allow the easy lookup of the node for the
physical address.

It has following interface:

int mem2node__init(struct mem2node *map, struct

perf tools: Add mem2node object

Adding mem2node object to allow the easy lookup of the node for the
physical address.

It has following interface:

int mem2node__init(struct mem2node *map, struct perf_env *env);
void mem2node__exit(struct mem2node *map);
int mem2node__node(struct mem2node *map, u64 addr);

The mem2node__toolsinit initialize object from the perf data file
MEM_TOPOLOGY feature data. Following calls to mem2node__node will return
node number for given physical address. The mem2node__exit function
frees the object.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180309101442.9224-3-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

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