Commit a6f83f00 authored by Ingo Molnar's avatar Ingo Molnar
Browse files

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

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

 into perf/urgent

Pull perf/urgent fixes from Arnaldo Carvalho de Melo:

User visible changes:

  - When handling perf_event_open() returning EBUSY and not being able to opendir
    the procfs mount point we would tell the user that the oprofile daemon was
    found by returning -1 on as the return for a bool function, oops, fix it,
    found with Coccinelle. (Peter Senna Tschudin).

  - Fix per-pkg event reporting bug in 'perf stat'. (Stephane Eranian)

Developer visible changes:

  - Fix missing prototype for function provided when it isn't present in the
    libelf present, fixing the build on RHEL/CentOS 5.1 systems, for instance.
    (Arnaldo Carvalho de Melo)

  - Detect if the gcc and libnuma have the features needed to avoid requiring
    the use of NO_LIBNUMA and/or NO_AUXTRACE to build on older systems.
    (Arnaldo Carvalho de Melo)

Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parents a7d5c189 bf644563

tools/build/Makefile.feature

+6 −2
Original line number Diff line number Diff line
@@ -41,6 +41,7 @@ FEATURE_TESTS ?= \ 
	libelf-getphdrnum		\

	libelf-mmap			\

	libnuma				\

	numa_num_possible_cpus		\

	libperl				\

	libpython			\

	libpython-version		\
@@ -51,7 +52,8 @@ FEATURE_TESTS ?= \ 
	timerfd				\

	libdw-dwarf-unwind		\

	zlib				\

	lzma

	lzma				\

	get_cpuid



FEATURE_DISPLAY ?=			\

	dwarf				\
@@ -61,13 +63,15 @@ FEATURE_DISPLAY ?= \ 
	libbfd				\

	libelf				\

	libnuma				\

	numa_num_possible_cpus		\

	libperl				\

	libpython			\

	libslang			\

	libunwind			\

	libdw-dwarf-unwind		\

	zlib				\

	lzma

	lzma				\

	get_cpuid



# Set FEATURE_CHECK_(C|LD)FLAGS-all for all FEATURE_TESTS features.

# If in the future we need per-feature checks/flags for features not

tools/build/feature/Makefile

+9 −1
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ FILES= \ 
	test-libelf-getphdrnum.bin	\

	test-libelf-mmap.bin		\

	test-libnuma.bin		\

	test-numa_num_possible_cpus.bin	\

	test-libperl.bin		\

	test-libpython.bin		\

	test-libpython-version.bin	\
@@ -34,7 +35,8 @@ FILES= \ 
	test-compile-x32.bin		\

	test-zlib.bin			\

	test-lzma.bin			\

	test-bpf.bin

	test-bpf.bin			\

	test-get_cpuid.bin



CC := $(CROSS_COMPILE)gcc -MD

PKG_CONFIG := $(CROSS_COMPILE)pkg-config
@@ -87,6 +89,9 @@ test-libelf-getphdrnum.bin: 
test-libnuma.bin:

	$(BUILD) -lnuma



test-numa_num_possible_cpus.bin:

	$(BUILD) -lnuma



test-libunwind.bin:

	$(BUILD) -lelf
@@ -162,6 +167,9 @@ test-zlib.bin: 
test-lzma.bin:

	$(BUILD) -llzma



test-get_cpuid.bin:

	$(BUILD)



test-bpf.bin:

	$(BUILD)

tools/build/feature/test-all.c

+10 −0
Original line number Diff line number Diff line
@@ -77,6 +77,10 @@ 
# include "test-libnuma.c"

#undef main



#define main main_test_numa_num_possible_cpus

# include "test-numa_num_possible_cpus.c"

#undef main



#define main main_test_timerfd

# include "test-timerfd.c"

#undef main
@@ -117,6 +121,10 @@ 
# include "test-lzma.c"

#undef main



#define main main_test_get_cpuid

# include "test-get_cpuid.c"

#undef main



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

{

	main_test_libpython();
@@ -136,6 +144,7 @@ int main(int argc, char *argv[]) 
	main_test_libbfd();

	main_test_backtrace();

	main_test_libnuma();

	main_test_numa_num_possible_cpus();

	main_test_timerfd();

	main_test_stackprotector_all();

	main_test_libdw_dwarf_unwind();
@@ -143,6 +152,7 @@ int main(int argc, char *argv[]) 
	main_test_zlib();

	main_test_pthread_attr_setaffinity_np();

	main_test_lzma();

	main_test_get_cpuid();



	return 0;

}

tools/build/feature/test-get_cpuid.c

0 → 100644
+7 −0
Original line number Diff line number Diff line 
#include <cpuid.h>



int main(void)

{

	unsigned int eax = 0, ebx = 0, ecx = 0, edx = 0;

	return __get_cpuid(0x15, &eax, &ebx, &ecx, &edx);

}

tools/build/feature/test-numa_num_possible_cpus.c

0 → 100644
+6 −0
Original line number Diff line number Diff line 
#include <numa.h>



int main(void)

{

	return numa_num_possible_cpus();

}

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