Commit c3290974 authored Dec 06, 2017 by Ingo Molnar

Merge tag 'perf-core-for-mingo-4.16-20171206' of...

Merge tag 'perf-core-for-mingo-4.16-20171206' 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:

- Improve build messages for files needed by Intel-PT, originally copied
  from the kernel sources, that drifted from its original (Adrian Hunter)

- Allow computing 'perf stat' style metrics in 'perf script' (Andi Kleen)

- Fix 'perf report -D' output for user metadata events (Arnaldo Carvalho de Melo)

- Add feature test for pthread_barrier_t availability (Arnaldo Carvalho de Melo)

- Allow again using x86's asm.h when building for the 'bpf' clang target,
  making some 'perf test' LLVM/BPF entries work again (Arnaldo Carvalho de Melo)

- Use cpumaps in 'perf bench futex', eliminating some code duplication
  (Davidlohr Bueso)

- Improve PMU infrastructure to support amp64's ThunderX2 implementation
  defined core events (Ganapatrao Kulkarni)

- Add hint about how to add USDT probes for Node.js (Hansuk Hong)

- s/390 needs -fPIC to be incrementally linked or linked to shared
  libraries (Hendrik Brueckner)

- Use pthread_barrier to synch 'perf bench futex wake-parallel' waker
  threads (James Yang)

- Fix up build in hardened environments, such as Fedora 27 (Jiri Olsa)

- Add a tip about cacheline events in 'perf c2c' (Sangwon Hong)

- Set browser mode right before setup_browser(), because we may have
  errors printed before that, which were getting lost (Seokho Song)

- s390x doesn't support PERF_TYPE_BREAKPOINT, so disable 'perf test'
  cases 19 and 20 on s390x, that tests that feature (Thomas Richter)

- Fix unnecessary memory allocation for s390x 'perf annotate' objdump
  parsing, which could lead to thousands of needless entries in the
  instruction handling array (Thomas Richter)

- Fix objdump comment parsing for Intel mov dissassembly (Thomas Richter)

- Clarify usage of 'overwrite' and 'backward' in the evlist/mmap code,
  removing the 'overwrite' parameter from several functions as it was
  always used it as 'false' (Wang Nan)

- Fix 'perf record' backward recording, it wasn't doing what was
  expected: overwriting records when the ring buffer gets full (Wang Nan)

- Use more flexible pattern matching for CPU identification for perf
  vendor event's mapfile.csv, removing the need for a new perf binary
  for a sligthly different chip revision that shares the same set of
  counters (William Cohen)

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

parents e4f57147 0b72d69a

Documentation/process/kernel-enforcement-statement.rst

+1 −0

Original line number	Diff line number	Diff line
		@@ -118,6 +118,7 @@ we might work for today, have in the past, or will in the future.
		- Mike Marshall
		- Chris Mason
		- Paul E. McKenney
		- Arnaldo Carvalho de Melo
		- David S. Miller
		- Ingo Molnar
		- Kuninori Morimoto

arch/x86/include/asm/asm.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -136,6 +136,7 @@
		#endif

		#ifndef __ASSEMBLY__
		#ifndef __BPF__
		/*
		* This output constraint should be used for any inline asm which has a "call"
		* instruction. Otherwise the asm may be inserted before the frame pointer
		@@ -145,5 +146,6 @@
		register unsigned long current_stack_pointer asm(_ASM_SP);
		#define ASM_CALL_CONSTRAINT "+r" (current_stack_pointer)
		#endif
		#endif

		#endif /* _ASM_X86_ASM_H */

tools/build/Makefile.feature

+1 −0

Original line number	Diff line number	Diff line
		@@ -56,6 +56,7 @@ FEATURE_TESTS_BASIC := \
		libunwind-arm \
		libunwind-aarch64 \
		pthread-attr-setaffinity-np \
		pthread-barrier \
		stackprotector-all \
		timerfd \
		libdw-dwarf-unwind \

tools/build/feature/Makefile

+4 −0

Original line number	Diff line number	Diff line
		@@ -37,6 +37,7 @@ FILES= \
		test-libunwind-debug-frame-arm.bin \
		test-libunwind-debug-frame-aarch64.bin \
		test-pthread-attr-setaffinity-np.bin \
		test-pthread-barrier.bin \
		test-stackprotector-all.bin \
		test-timerfd.bin \
		test-libdw-dwarf-unwind.bin \
		@@ -79,6 +80,9 @@ $(OUTPUT)test-hello.bin:
		$(OUTPUT)test-pthread-attr-setaffinity-np.bin:
		$(BUILD) -D_GNU_SOURCE -lpthread

		$(OUTPUT)test-pthread-barrier.bin:
		$(BUILD) -lpthread

		$(OUTPUT)test-stackprotector-all.bin:
		$(BUILD) -fstack-protector-all

tools/build/feature/test-all.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -118,6 +118,10 @@
		# include "test-pthread-attr-setaffinity-np.c"
		#undef main

		#define main main_test_pthread_barrier
		# include "test-pthread-barrier.c"
		#undef main

		#define main main_test_sched_getcpu
		# include "test-sched_getcpu.c"
		#undef main
		@@ -187,6 +191,7 @@ int main(int argc, char *argv[])
		main_test_sync_compare_and_swap(argc, argv);
		main_test_zlib();
		main_test_pthread_attr_setaffinity_np();
		main_test_pthread_barrier();
		main_test_lzma();
		main_test_get_cpuid();
		main_test_bpf();