tree b584f9eb09f308d0172e7179c1d920577af6ff1c
parent 4865a27c66fda6a32511ec5492f4bbec437f512d
parent ea558c86248b4955e5c5f3c0c921df450880605e
author Linus Torvalds <torvalds@linux-foundation.org> 1716331514 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1716331514 -0700
mergetag object ea558c86248b4955e5c5f3c0c921df450880605e
 type commit
 tag perf-tools-for-v6.10-1-2024-05-21
 tagger Arnaldo Carvalho de Melo <acme@redhat.com> 1716313389 -0300
 
 perf tools fixes and improvements for v6.10:
 
 - Add Kan Liang to MAINTAINERS as a perf tools reviewer.
 
 - Add support for using the 'capstone' disassembler library in various tools,
   such as 'perf script' and 'perf annotate'. This is an alternative for the
   use of the 'xed' and 'objdump' disassemblers.
 
 - Data-type profiling improvements:
 
   Resolve types for a->b->c by backtracking the assignments until it finds
   DWARF info for one of those members
 
   Support for global variables, keeping a cache to speed up lookups.
 
   Handle the 'call' instruction, dealing with effects on registers and handling
   its return when tracking register data types.
 
   Handle x86's segment based addressing like %gs:0x28, to support things like
   per CPU variables, the stack canary, etc.
 
   Data-type profiling got big speedups when using capstone for disassembling.
   The objdump outoput parsing method is left as a fallback when capstone fails or
   isn't available. There are patches posted for 6.11 that to use a LLVM
   disassembler.
 
   Support event group display in the TUI when annotating types with --data-type,
   for instance to show memory load and store events for the data type fields.
 
   Optimize the 'perf annotate' data structures, reducing memory usage.
 
   Add a initial 'perf test' for 'perf annotate', checking that a target symbol
   appears on the output, specifying objdump via the command line, etc.
 
 - Integrate the shellcheck utility with the build of perf to allow catching
   shell problems early in areas such as 'perf test', 'perf trace' scrape
   scripts, etc.
 
 - Add 'uretprobe' variant in the 'perf bench uprobe' tool.
 
 - Add script to run instances of 'perf script' in parallel.
 
 - Allow parsing tracepoint names that start with digits, such as
   9p/9p_client_req, etc. Make sure 'perf test' tests it even on systems
   where those tracepoints aren't available.
 
 Vendor Events:
 
 - Update Intel JSON files for Cascade Lake X, Emerald Rapids, Grand Ridge, Ice
   Lake X, Lunar Lake, Meteor Lake, Sapphire Rapids, Sierra Forest, Sky Lake X,
   Sky Lake and Snow Ridge X.  Remove info metrics erroneously in TopdownL1.
 
 - Add AMD's Zen 5 core and uncore events and metrics. Those come from the
   "Performance Monitor Counters for AMD Family 1Ah Model 00h- 0Fh Processors"
   document, with events that capture information on op dispatch, execution and
   retirement, branch prediction, L1 and L2 cache activity, TLB activity, etc.
 
 - Mark L1D_CACHE_INVAL impacted by errata for ARM64's AmpereOne/AmpereOneX.
 
 Miscellaneous:
 
 - Sync header copies with the kernel sources.
 
 - Move some header copies used only for generating translation string tables
   for ioctl cmds and other syscall integer arguments to a new directory under
   tools/perf/beauty/, to separate from copies in tools/include/ that are used
   to build the tools.
 
 - Introduce scrape script for several syscall 'flags'/'mask' arguments.
 
 - Improve cpumap utilization, fixing up pairing of refcounts, using the right
   iterators (perf_cpu_map__for_each_cpu), etc.
 
 - Give more details about raw event encodings in 'perf list', show tracepoint
   encoding in the detailed output.
 
 - Refactor the DSOs handling code, reducing memory usage.
 
 - Document the BPF event modifier and add a 'perf test' for it.
 
 - Improve the event parser, better error messages and add further 'perf test's
   for it.
 
 - Add reference count checking to 'struct comm_str' and 'struct mem_info'.
 
 - Make ARM64's 'perf test' entries for the Neoverse N1 more robust.
 
 - Tweak the ARM64's Coresight 'perf test's.
 
 - Improve ARM64's CoreSight ETM version detection and error reporting.
 
 - Fix handling of symbols when using kcore.
 
 - Fix PAI (Processor Activity Instrumentation) counter names for s390 virtual
   machines in 'perf report'.
 
 - Fix -g/--call-graph option failure in 'perf sched timehist'.
 
 - Add LIBTRACEEVENT_DIR build option to allow building with libtraceevent
   installed in non-standard directories, such as when doing cross builds.
 
 - Various 'perf test' and 'perf bench' fixes.
 
 - Improve 'perf probe' error message for long C++ probe names.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-for-v6.10-1-2024-05-21' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

Pull perf tools updates from Arnaldo Carvalho de Melo:
 "General:

   - Integrate the shellcheck utility with the build of perf to allow
     catching shell problems early in areas such as 'perf test', 'perf
     trace' scrape scripts, etc

   - Add 'uretprobe' variant in the 'perf bench uprobe' tool

   - Add script to run instances of 'perf script' in parallel

   - Allow parsing tracepoint names that start with digits, such as
     9p/9p_client_req, etc. Make sure 'perf test' tests it even on
     systems where those tracepoints aren't available

   - Add Kan Liang to MAINTAINERS as a perf tools reviewer

   - Add support for using the 'capstone' disassembler library in
     various tools, such as 'perf script' and 'perf annotate'. This is
     an alternative for the use of the 'xed' and 'objdump' disassemblers

  Data-type profiling improvements:

   - Resolve types for a->b->c by backtracking the assignments until it
     finds DWARF info for one of those members

   - Support for global variables, keeping a cache to speed up lookups

   - Handle the 'call' instruction, dealing with effects on registers
     and handling its return when tracking register data types

   - Handle x86's segment based addressing like %gs:0x28, to support
     things like per CPU variables, the stack canary, etc

   - Data-type profiling got big speedups when using capstone for
     disassembling. The objdump outoput parsing method is left as a
     fallback when capstone fails or isn't available. There are patches
     posted for 6.11 that to use a LLVM disassembler

   - Support event group display in the TUI when annotating types with
     --data-type, for instance to show memory load and store events for
     the data type fields

   - Optimize the 'perf annotate' data structures, reducing memory usage

   - Add a initial 'perf test' for 'perf annotate', checking that a
     target symbol appears on the output, specifying objdump via the
     command line, etc

  Vendor Events:

   - Update Intel JSON files for Cascade Lake X, Emerald Rapids, Grand
     Ridge, Ice Lake X, Lunar Lake, Meteor Lake, Sapphire Rapids, Sierra
     Forest, Sky Lake X, Sky Lake and Snow Ridge X. Remove info metrics
     erroneously in TopdownL1

   - Add AMD's Zen 5 core and uncore events and metrics. Those come from
     the "Performance Monitor Counters for AMD Family 1Ah Model 00h- 0Fh
     Processors" document, with events that capture information on op
     dispatch, execution and retirement, branch prediction, L1 and L2
     cache activity, TLB activity, etc

   - Mark L1D_CACHE_INVAL impacted by errata for ARM64's AmpereOne/
     AmpereOneX

  Miscellaneous:

   - Sync header copies with the kernel sources

   - Move some header copies used only for generating translation string
     tables for ioctl cmds and other syscall integer arguments to a new
     directory under tools/perf/beauty/, to separate from copies in
     tools/include/ that are used to build the tools

   - Introduce scrape script for several syscall 'flags'/'mask'
     arguments

   - Improve cpumap utilization, fixing up pairing of refcounts, using
     the right iterators (perf_cpu_map__for_each_cpu), etc

   - Give more details about raw event encodings in 'perf list', show
     tracepoint encoding in the detailed output

   - Refactor the DSOs handling code, reducing memory usage

   - Document the BPF event modifier and add a 'perf test' for it

   - Improve the event parser, better error messages and add further
     'perf test's for it

   - Add reference count checking to 'struct comm_str' and 'struct
     mem_info'

   - Make ARM64's 'perf test' entries for the Neoverse N1 more robust

   - Tweak the ARM64's Coresight 'perf test's

   - Improve ARM64's CoreSight ETM version detection and error reporting

   - Fix handling of symbols when using kcore

   - Fix PAI (Processor Activity Instrumentation) counter names for s390
     virtual machines in 'perf report'

   - Fix -g/--call-graph option failure in 'perf sched timehist'

   - Add LIBTRACEEVENT_DIR build option to allow building with
     libtraceevent installed in non-standard directories, such as when
     doing cross builds

   - Various 'perf test' and 'perf bench' fixes

   - Improve 'perf probe' error message for long C++ probe names"

* tag 'perf-tools-for-v6.10-1-2024-05-21' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (260 commits)
  tools lib subcmd: Show parent options in help
  perf pmu: Count sys and cpuid JSON events separately
  perf stat: Don't display metric header for non-leader uncore events
  perf annotate-data: Ensure the number of type histograms
  perf annotate: Fix segfault on sample histogram
  perf daemon: Fix file leak in daemon_session__control
  libsubcmd: Fix parse-options memory leak
  perf lock: Avoid memory leaks from strdup()
  perf sched: Rename 'switches' column header to 'count' and add usage description, options for latency
  perf tools: Ignore deleted cgroups
  perf parse: Allow tracepoint names to start with digits
  perf parse-events: Add new 'fake_tp' parameter for tests
  perf parse-events: pass parse_state to add_tracepoint
  perf symbols: Fix ownership of string in dso__load_vmlinux()
  perf symbols: Update kcore map before merging in remaining symbols
  perf maps: Re-use __maps__free_maps_by_name()
  perf symbols: Remove map from list before updating addresses
  perf tracepoint: Don't scan all tracepoints to test if one exists
  perf dwarf-aux: Fix build with HAVE_DWARF_CFI_SUPPORT
  perf thread: Fixes to thread__new() related to initializing comm
  ...