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Commit 0bd106d2 authored by Ingo Molnar's avatar Ingo Molnar
Browse files

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

Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

 into perf/urgent

Pull perf tooling fixes from Arnaldo Carvalho de Melo:

" - Fix a few clean targets in tools/ (Jiri Olsa)

  - Add missing sources to perf's MANIFEST, fixing the out of tree build with
    'make perf-tar*-src-pkg' tarballs (Jiri Olsa)

  - Fix bpf related build problems in PowerPC (Naveen N. Rao, Wang Nan)

  - 'make -C tools/perf build-test' fixes (Wang Nan)

  - Fix 'perf test hist' entry (Wang Nan)

  - Add BPF feature check to test-all, as in an environment with all other
    features enabled, BPF would be considered enabled without doing real
    feature check.  (Wang Nan)"

Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parents 5cb52b5e b0500c16

tools/Makefile

+10 −1
Original line number Diff line number Diff line
@@ -127,6 +127,12 @@ liblockdep_clean: 
libapi_clean:

	$(call descend,lib/api,clean)



libbpf_clean:

	$(call descend,lib/bpf,clean)



libsubcmd_clean:

	$(call descend,lib/subcmd,clean)



perf_clean:

	$(call descend,$(@:_clean=),clean)
@@ -142,9 +148,12 @@ tmon_clean: 
freefall_clean:

	$(call descend,laptop/freefall,clean)



build_clean:

	$(call descend,build,clean)



clean: acpi_clean cgroup_clean cpupower_clean hv_clean firewire_clean lguest_clean \

		perf_clean selftests_clean turbostat_clean usb_clean virtio_clean \

		vm_clean net_clean iio_clean x86_energy_perf_policy_clean tmon_clean \

		freefall_clean

		freefall_clean build_clean libbpf_clean libsubcmd_clean liblockdep_clean



.PHONY: FORCE

tools/build/feature/test-all.c

+5 −0
Original line number Diff line number Diff line
@@ -125,6 +125,10 @@ 
# include "test-get_cpuid.c"

#undef main



#define main main_test_bpf

# include "test-bpf.c"

#undef main



int main(int argc, char *argv[])

{

	main_test_libpython();
@@ -153,6 +157,7 @@ int main(int argc, char *argv[]) 
	main_test_pthread_attr_setaffinity_np();

	main_test_lzma();

	main_test_get_cpuid();

	main_test_bpf();



	return 0;

}

tools/build/feature/test-bpf.c

+19 −1
Original line number Diff line number Diff line 
#include <asm/unistd.h>

#include <linux/bpf.h>

#include <unistd.h>



#ifndef __NR_bpf

# if defined(__i386__)

#  define __NR_bpf 357

# elif defined(__x86_64__)

#  define __NR_bpf 321

# elif defined(__aarch64__)

#  define __NR_bpf 280

#  error __NR_bpf not defined. libbpf does not support your arch.

# endif

#endif



int main(void)

{

	union bpf_attr attr;



	/* Check fields in attr */

	attr.prog_type = BPF_PROG_TYPE_KPROBE;

	attr.insn_cnt = 0;

	attr.insns = 0;
@@ -14,5 +28,9 @@ int main(void) 
	attr.kern_version = 0;



	attr = attr;

	return 0;

	/*

	 * Test existence of __NR_bpf and BPF_PROG_LOAD.

	 * This call should fail if we run the testcase.

	 */

	return syscall(__NR_bpf, BPF_PROG_LOAD, attr, sizeof(attr));

}

tools/lib/bpf/Makefile

+9 −9
Original line number Diff line number Diff line
@@ -6,6 +6,12 @@ BPF_EXTRAVERSION = 1 


MAKEFLAGS += --no-print-directory



ifeq ($(srctree),)

srctree := $(patsubst %/,%,$(dir $(shell pwd)))

srctree := $(patsubst %/,%,$(dir $(srctree)))

srctree := $(patsubst %/,%,$(dir $(srctree)))

#$(info Determined 'srctree' to be $(srctree))

endif



# Makefiles suck: This macro sets a default value of $(2) for the

# variable named by $(1), unless the variable has been set by
@@ -31,7 +37,8 @@ INSTALL = install 
DESTDIR ?=

DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'



LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1)

include $(srctree)/tools/scripts/Makefile.arch



ifeq ($(LP64), 1)

  libdir_relative = lib64

else
@@ -57,13 +64,6 @@ ifndef VERBOSE 
  VERBOSE = 0

endif



ifeq ($(srctree),)

srctree := $(patsubst %/,%,$(dir $(shell pwd)))

srctree := $(patsubst %/,%,$(dir $(srctree)))

srctree := $(patsubst %/,%,$(dir $(srctree)))

#$(info Determined 'srctree' to be $(srctree))

endif



FEATURE_USER = .libbpf

FEATURE_TESTS = libelf libelf-getphdrnum libelf-mmap bpf

FEATURE_DISPLAY = libelf bpf
@@ -192,7 +192,7 @@ config-clean: 
	$(Q)$(MAKE) -C $(srctree)/tools/build/feature/ clean >/dev/null



clean:

	$(call QUIET_CLEAN, libbpf) $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d \

	$(call QUIET_CLEAN, libbpf) $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d .*.cmd \

		$(RM) LIBBPF-CFLAGS

	$(call QUIET_CLEAN, core-gen) $(RM) $(OUTPUT)FEATURE-DUMP.libbpf

tools/lib/bpf/bpf.c

+2 −2
Original line number Diff line number Diff line
@@ -14,8 +14,8 @@ 
#include "bpf.h"



/*

 * When building perf, unistd.h is override. Define __NR_bpf is

 * required to be defined.

 * When building perf, unistd.h is overrided. __NR_bpf is

 * required to be defined explicitly.

 */

#ifndef __NR_bpf

# if defined(__i386__)