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    Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 7e92daae
    Linus Torvalds authored
    Pull perf update from Ingo Molnar:
     "Lots of changes in this cycle as well, with hundreds of commits from
      over 30 contributors.  Most of the activity was on the tooling side.
    
      Higher level changes:
    
       - New 'perf kvm' analysis tool, from Xiao Guangrong.
    
       - New 'perf trace' system-wide tracing tool
    
       - uprobes fixes + cleanups from Oleg Nesterov.
    
       - Lots of patches to make perf build on Android out of box, from
         Irina Tirdea
    
       - Extend ftrace function tracing utility to be more dynamic for its
         users.  It allows for data passing to the callback functions, as
         well as reading regs as if a breakpoint were to trigger at function
         entry.
    
         The main goal of this patch series was to allow kprobes to use
         ftrace as an optimized probe point when a probe is placed on an
         ftrace nop.  With lots of help from Masami Hiramatsu, and going
         through lots of iterations, we finally came up with a good
         solution.
    
       - Add cpumask for uncore pmu, use it in 'stat', from Yan, Zheng.
    
       - Various tracing updates from Steve Rostedt
    
       - Clean up and improve 'perf sched' performance by elliminating lots
         of needless calls to libtraceevent.
    
       - Event group parsing support, from Jiri Olsa
    
       - UI/gtk refactorings and improvements from Namhyung Kim
    
       - Add support for non-tracepoint events in perf script python, from
         Feng Tang
    
       - Add --symbols to 'script', similar to the one in 'report', from
         Feng Tang.
    
      Infrastructure enhancements and fixes:
    
       - Convert the trace builtins to use the growing evsel/evlist
         tracepoint infrastructure, removing several open coded constructs
         like switch like series of strcmp to dispatch events, etc.
         Basically what had already been showcased in 'perf sched'.
    
       - Add evsel constructor for tracepoints, that uses libtraceevent just
         to parse the /format events file, use it in a new 'perf test' to
         make sure the libtraceevent format parsing regressions can be more
         readily caught.
    
       - Some strange errors were happening in some builds, but not on the
         next, reported by several people, problem was some parser related
         files, generated during the build, didn't had proper make deps, fix
         from Eric Sandeen.
    
       - Introduce struct and cache information about the environment where
         a perf.data file was captured, from Namhyung Kim.
    
       - Fix handling of unresolved samples when --symbols is used in
         'report', from Feng Tang.
    
       - Add union member access support to 'probe', from Hyeoncheol Lee.
    
       - Fixups to die() removal, from Namhyung Kim.
    
       - Render fixes for the TUI, from Namhyung Kim.
    
       - Don't enable annotation in non symbolic view, from Namhyung Kim.
    
       - Fix pipe mode in 'report', from Namhyung Kim.
    
       - Move related stats code from stat to util/, will be used by the
         'stat' kvm tool, from Xiao Guangrong.
    
       - Remove die()/exit() calls from several tools.
    
       - Resolve vdso callchains, from Jiri Olsa
    
       - Don't pass const char pointers to basename, so that we can
         unconditionally use libgen.h and thus avoid ifdef BIONIC lines,
         from David Ahern
    
       - Refactor hist formatting so that it can be reused with the GTK
         browser, From Namhyung Kim
    
       - Fix build for another rbtree.c change, from Adrian Hunter.
    
       - Make 'perf diff' command work with evsel hists, from Jiri Olsa.
    
       - Use the only field_sep var that is set up: symbol_conf.field_sep,
         fix from Jiri Olsa.
    
       - .gitignore compiled python binaries, from Namhyung Kim.
    
       - Get rid of die() in more libtraceevent places, from Namhyung Kim.
    
       - Rename libtraceevent 'private' struct member to 'priv' so that it
         works in C++, from Steven Rostedt
    
       - Remove lots of exit()/die() calls from tools so that the main perf
         exit routine can take place, from David Ahern
    
       - Fix x86 build on x86-64, from David Ahern.
    
       - {int,str,rb}list fixes from Suzuki K Poulose
    
       - perf.data header fixes from Namhyung Kim
    
       - Allow user to indicate objdump path, needed in cross environments,
         from Maciek Borzecki
    
       - Fix hardware cache event name generation, fix from Jiri Olsa
    
       - Add round trip test for sw, hw and cache event names, catching the
         problem Jiri fixed, after Jiri's patch, the test passes
         successfully.
    
       - Clean target should do clean for lib/traceevent too, fix from David
         Ahern
    
       - Check the right variable for allocation failure, fix from Namhyung
         Kim
    
       - Set up evsel->tp_format regardless of evsel->name being set
         already, fix from Namhyung Kim
    
       - Oprofile fixes from Robert Richter.
    
       - Remove perf_event_attr needless version inflation, from Jiri Olsa
    
       - Introduce libtraceevent strerror like error reporting facility,
         from Namhyung Kim
    
       - Add pmu mappings to perf.data header and use event names from cmd
         line, from Robert Richter
    
       - Fix include order for bison/flex-generated C files, from Ben
         Hutchings
    
       - Build fixes and documentation corrections from David Ahern
    
       - Assorted cleanups from Robert Richter
    
       - Let O= makes handle relative paths, from Steven Rostedt
    
       - perf script python fixes, from Feng Tang.
    
       - Initial bash completion support, from Frederic Weisbecker
    
       - Allow building without libelf, from Namhyung Kim.
    
       - Support DWARF CFI based unwind to have callchains when %bp based
         unwinding is not possible, from Jiri Olsa.
    
       - Symbol resolution fixes, while fixing support PPC64 files with an
         .opt ELF section was the end goal, several fixes for code that
         handles all architectures and cleanups are included, from Cody
         Schafer.
    
       - Assorted fixes for Documentation and build in 32 bit, from Robert
         Richter
    
       - Cache the libtraceevent event_format associated to each evsel
         early, so that we avoid relookups, i.e.  calling pevent_find_event
         repeatedly when processing tracepoint events.
    
         [ This is to reduce the surface contact with libtraceevents and
            make clear what is that the perf tools needs from that lib: so
            far parsing the common and per event fields.  ]
    
       - Don't stop the build if the audit libraries are not installed, fix
         from Namhyung Kim.
    
       - Fix bfd.h/libbfd detection with recent binutils, from Markus
         Trippelsdorf.
    
       - Improve warning message when libunwind devel packages not present,
         from Jiri Olsa"
    
    * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (282 commits)
      perf trace: Add aliases for some syscalls
      perf probe: Print an enum type variable in "enum variable-name" format when showing accessible variables
      perf tools: Check libaudit availability for perf-trace builtin
      perf hists: Add missing period_* fields when collapsing a hist entry
      perf trace: New tool
      perf evsel: Export the event_format constructor
      perf evsel: Introduce rawptr() method
      perf tools: Use perf_evsel__newtp in the event parser
      perf evsel: The tracepoint constructor should store sys:name
      perf evlist: Introduce set_filter() method
      perf evlist: Renane set_filters method to apply_filters
      perf test: Add test to check we correctly parse and match syscall open parms
      perf evsel: Handle endianity in intval method
      perf evsel: Know if byte swap is needed
      perf tools: Allow handling a NULL cpu_map as meaning "all cpus"
      perf evsel: Improve tracepoint constructor setup
      tools lib traceevent: Fix error path on pevent_parse_event
      perf test: Fix build failure
      trace: Move trace event enable from fs_initcall to core_initcall
      tracing: Add an option for disabling markers
      ...
    7e92daae