# git rev-parse -q --verify 00e4db51259a5f936fec1424b884f029479d3981^{commit}
00e4db51259a5f936fec1424b884f029479d3981
already have revision, skipping fetch
# git checkout -q -f -B kisskb 00e4db51259a5f936fec1424b884f029479d3981
# git clean -qxdf
# < git log -1
# commit 00e4db51259a5f936fec1424b884f029479d3981
# Merge: ed3854ff994b 1101c872c8c7
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon Aug 10 19:21:38 2020 -0700
# 
#     Merge tag 'perf-tools-2020-08-10' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
#     
#     Pull perf tools updates from Arnaldo Carvalho de Melo:
#      "New features:
#     
#        - Introduce controlling how 'perf stat' and 'perf record' works via a
#          control file descriptor, allowing starting with events configured
#          but disabled until commands are received via the control file
#          descriptor. This allows, for instance for tools such as Intel VTune
#          to make further use of perf as its Linux platform driver.
#     
#        - Improve 'perf record' to to register in a perf.data file header the
#          clockid used to help later correlate things like syslog files and
#          perf events recorded.
#     
#        - Add basic syscall and find_next_bit benchmarks to 'perf bench'.
#     
#        - Allow using computed metrics in calculating other metrics. For
#          instance:
#     
#               {
#                 .metric_expr    = "l2_rqsts.demand_data_rd_hit + l2_rqsts.pf_hit + l2_rqsts.rfo_hit",
#                 .metric_name    = "DCache_L2_All_Hits",
#               },
#               {
#                 .metric_expr    = "max(l2_rqsts.all_demand_data_rd - l2_rqsts.demand_data_rd_hit, 0) + l2_rqsts.pf_miss + l2_rqsts.rfo_miss",
#                 .metric_name    = "DCache_L2_All_Miss",
#               },
#               {
#                  .metric_expr    = "dcache_l2_all_hits + dcache_l2_all_miss",
#                  .metric_name    = "DCache_L2_All",
#               }
#     
#        - Add suport for 'd_ratio', '>' and '<' operators to the expression
#          resolver used in calculating metrics in 'perf stat'.
#     
#       Support for new kernel features:
#     
#        - Support TEXT_POKE and KSYMBOL_TYPE_OOL perf metadata events to cope
#          with things like ftrace, trampolines, i.e. changes in the kernel
#          text that gets in the way of properly decoding Intel PT hardware
#          traces, for instance.
#     
#       Intel PT:
#     
#        - Add various knobs to reduce the volume of Intel PT traces by
#          reducing the level of details such as decoding just some types of
#          packets (e.g., FUP/TIP, PSB+), also filtering by time range.
#     
#        - Add new itrace options (log flags to the 'd' option, error flags to
#          the 'e' one, etc), controlling how Intel PT is transformed into
#          perf events, document some missing options (e.g., how to synthesize
#          callchains).
#     
#       BPF:
#     
#        - Properly report BPF errors when parsing events.
#     
#        - Do not setup side-band events if LIBBPF is not linked, fixing a
#          segfault.
#     
#       Libraries:
#     
#        - Improvements to the libtraceevent plugin mechanism.
#     
#        - Improve libtracevent support for KVM trace events SVM exit reasons.
#     
#        - Add a libtracevent plugins for decoding syscalls/sys_enter_futex
#          and for tlb_flush.
#     
#        - Ensure sample_period is set libpfm4 events in 'perf test'.
#     
#        - Fixup libperf namespacing, to make sure what is in libperf has the
#          perf_ namespace while what is now only in tools/perf/ doesn't use
#          that prefix.
#     
#       Arch specific:
#     
#        - Improve the testing of vendor events and metrics in 'perf test'.
#     
#        - Allow no ARM CoreSight hardware tracer sink to be specified on
#          command line.
#     
#        - Fix arm_spe_x recording when mixed with other perf events.
#     
#        - Add s390 idle functions 'psw_idle' and 'psw_idle_exit' to list of
#          idle symbols.
#     
#        - List kernel supplied event aliases for arm64 in 'perf list'.
#     
#        - Add support for extended register capability in PowerPC 9 and 10.
#     
#        - Added nest IMC power9 metric events.
#     
#       Miscellaneous:
#     
#        - No need to setup sample_regs_intr/sample_regs_user for dummy
#          events.
#     
#        - Update various copies of kernel headers, some causing perf to
#          handle new syscalls, MSRs, etc.
#     
#        - Improve usage of flex and yacc, enabling warnings and addressing
#          the fallout.
#     
#        - Add missing '--output' option to 'perf kmem' so that it can pass it
#          along to 'perf record'.
#     
#        - 'perf probe' fixes related to adding multiple probes on the same
#          address for the same event.
#     
#        - Make 'perf probe' warn if the target function is a GNU indirect
#          function.
#     
#        - Remove //anon mmap events from 'perf inject jit' to fix supporting
#          both using ELF files for generated functions and the perf-PID.map
#          approaches"
#     
#     * tag 'perf-tools-2020-08-10' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (144 commits)
#       perf record: Skip side-band event setup if HAVE_LIBBPF_SUPPORT is not set
#       perf tools powerpc: Add support for extended regs in power10
#       perf tools powerpc: Add support for extended register capability
#       tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
#       tools arch x86: Sync asm/cpufeatures.h with the kernel sources
#       tools arch x86: Sync the msr-index.h copy with the kernel sources
#       tools headers UAPI: update linux/in.h copy
#       tools headers API: Update close_range affected files
#       perf script: Add 'tod' field to display time of day
#       perf script: Change the 'enum perf_output_field' enumerators to be 64 bits
#       perf data: Add support to store time of day in CTF data conversion
#       perf tools: Move clockid_res_ns under clock struct
#       perf header: Store clock references for -k/--clockid option
#       perf tools: Add clockid_name function
#       perf clockid: Move parse_clockid() to new clockid object
#       tools lib traceevent: Handle possible strdup() error in tep_add_plugin_path() API
#       libtraceevent: Fixed description of tep_add_plugin_path() API
#       libtraceevent: Fixed type in PRINT_FMT_STING
#       libtraceevent: Fixed broken indentation in parse_ip4_print_args()
#       libtraceevent: Improve error handling of tep_plugin_add_option() API
#       ...
# < /opt/cross/kisskb/korg/gcc-9.3.0-nolibc/or1k-linux/bin/or1k-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-9.3.0-nolibc/or1k-linux/bin/or1k-linux-ld --version
# < git log --format=%s --max-count=1 00e4db51259a5f936fec1424b884f029479d3981
# < make -s -j 8 ARCH=openrisc O=/kisskb/build/linus_or1ksim_defconfig_or32 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.3.0-nolibc/or1k-linux/bin/or1k-linux-  or1ksim_defconfig
# < make -s -j 8 ARCH=openrisc O=/kisskb/build/linus_or1ksim_defconfig_or32 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.3.0-nolibc/or1k-linux/bin/or1k-linux-  help
# make -s -j 8 ARCH=openrisc O=/kisskb/build/linus_or1ksim_defconfig_or32 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.3.0-nolibc/or1k-linux/bin/or1k-linux-  olddefconfig
# make -s -j 8 ARCH=openrisc O=/kisskb/build/linus_or1ksim_defconfig_or32 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.3.0-nolibc/or1k-linux/bin/or1k-linux-  
Completed OK
# rm -rf /kisskb/build/linus_or1ksim_defconfig_or32
# Build took: 0:00:52.726341