Merge tag 'perf-core-for-mingo' 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:

User visible changes:

  - Fix a segfault in 'perf probe' when removing uprobe events. (Masami Hiramatsu)

  - Synthesize COMM event for workloads started from the command line in 'perf
    record' so that we can have the pid->comm mapping before we get the real
    PERF_RECORD_COMM switching from perf to the workload. (Namhyung Kim)

  - Fix build tools/vm/ due to removal of tools/lib/api/fs/debugfs.h.
    (Arnaldo Carvalho de Melo)

Infrastructure changes:

  - Fix the make tarball targets by including the recently added err.h header in
    the perf MANIFEST file. (Jiri Olsa)

  - Don't assume that the event parser returns a non empty evlist. (Wang Nan)

  - Add way to disambiguate feature detection state files, needed to use
    tools/build feature detection for multiple components in a single O= output
    dir, which will be the case with tools/perf/ and tools/lib/bpf/.
    (Arnaldo Carvalho de Melo)

  - Fixup FEATURE_{TESTS,DISPLAY} inversion in tools/lib/bpf/. (Arnaldo Carvalho de Melo)

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

tools/lib/bpf/Makefile

@@ -64,8 +64,9 @@ srctree := $(patsubst %/,%,$(dir $(srctree)))
 #$(info Determined 'srctree' to be $(srctree))
 endif
 
-FEATURE_DISPLAY = libelf libelf-getphdrnum libelf-mmap bpf
-FEATURE_TESTS = libelf bpf
+FEATURE_USER = .libbpf
+FEATURE_TESTS = libelf libelf-getphdrnum libelf-mmap bpf
+FEATURE_DISPLAY = libelf bpf
 
 INCLUDES = -I. -I$(srctree)/tools/include -I$(srctree)/arch/$(ARCH)/include/uapi -I$(srctree)/include/uapi
 FEATURE_CHECK_CFLAGS-bpf = $(INCLUDES)