Commit 0513e464 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'perf-tools-fixes-for-v5.15-2021-09-27' of... 

Merge tag 'perf-tools-fixes-for-v5.15-2021-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull more perf tools fixes from Arnaldo Carvalho de Melo:

 - Fix 'perf test' DWARF unwind for optimized builds.

 - Fix 'perf test' 'Object code reading' when dealing with samples in
   @plt symbols.

 - Fix off-by-one directory paths in the ARM support code.

 - Fix error message to eliminate confusion in 'perf config' when first
   creating a config file.

 - 'perf iostat' fix for system wide operation.

 - Fix printing of metrics when 'perf iostat' is used with one or more
   iio_root_ports and unconnected cpus (using -C).

 - Fix several typos in the documentation files.

 - Fix spelling mistake "icach" -> "icache" in the power8 JSON vendor
   files.

* tag 'perf-tools-fixes-for-v5.15-2021-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf iostat: Fix Segmentation fault from NULL 'struct perf_counts_values *'
  perf iostat: Use system-wide mode if the target cpu_list is unspecified
  perf config: Refine error message to eliminate confusion
  perf doc: Fix typos all over the place
  perf arm: Fix off-by-one directory paths.
  perf vendor events powerpc: Fix spelling mistake "icach" -> "icache"
  perf tests: Fix flaky test 'Object code reading'
  perf test: Fix DWARF unwind for optimized builds.
parents 9cccec2b 4da8b121

tools/perf/Documentation/jitdump-specification.txt

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@@ -164,7 +164,7 @@ const char unwinding_data[n]: an array of unwinding data, consisting of the EH F 
The EH Frame header follows the Linux Standard Base (LSB) specification as described in the document at https://refspecs.linuxfoundation.org/LSB_1.3.0/gLSB/gLSB/ehframehdr.html





The EH Frame follows the LSB specicfication as described in the document at https://refspecs.linuxbase.org/LSB_3.0.0/LSB-PDA/LSB-PDA/ehframechpt.html

The EH Frame follows the LSB specification as described in the document at https://refspecs.linuxbase.org/LSB_3.0.0/LSB-PDA/LSB-PDA/ehframechpt.html





NOTE: The mapped_size is generally either the same as unwind_data_size (if the unwinding data was mapped in memory by the running process) or zero (if the unwinding data is not mapped by the process). If the unwinding data was not mapped, then only the EH Frame Header will be read, which can be used to specify FP based unwinding for a function which does not have unwinding information.

tools/perf/Documentation/perf-c2c.txt

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@@ -261,7 +261,7 @@ COALESCE 
User can specify how to sort offsets for cacheline.



Following fields are available and governs the final

output fields set for caheline offsets output:

output fields set for cacheline offsets output:



  tid   - coalesced by process TIDs

  pid   - coalesced by process PIDs

tools/perf/Documentation/perf-intel-pt.txt

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@@ -883,7 +883,7 @@ and "r" can be combined to get calls and returns. 


"Transactions" events correspond to the start or end of transactions. The

'flags' field can be used in perf script to determine whether the event is a

tranasaction start, commit or abort.

transaction start, commit or abort.



Note that "instructions", "branches" and "transactions" events depend on code

flow packets which can be disabled by using the config term "branch=0".  Refer

tools/perf/Documentation/perf-lock.txt

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@@ -44,7 +44,7 @@ COMMON OPTIONS 


-f::

--force::

	Don't complan, do it.

	Don't complain, do it.



REPORT OPTIONS

--------------

tools/perf/Documentation/perf-script-perl.txt

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@@ -54,7 +54,7 @@ all sched_wakeup events in the system: 
Traces meant to be processed using a script should be recorded with

the above option: -a to enable system-wide collection.



The format file for the sched_wakep event defines the following fields

The format file for the sched_wakeup event defines the following fields

(see /sys/kernel/debug/tracing/events/sched/sched_wakeup/format):



----