Commit 636fa4a7 authored by Ingo Molnar's avatar Ingo Molnar
Browse files

Merge tag 'perf-urgent-for-mingo-20160512' of... 

Merge tag 'perf-urgent-for-mingo-20160512' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

 into perf/urgent

Pull perf/urgent fixes from Arnaldo Carvalho de Melo:

- Fallback to usermode-only counters when perf_event_paranoid > 1, which
  is the case now (Arnaldo Carvalho de Melo)

- Do not reassign parg after collapse_tree() in libtraceevent, which
  may cause tool crashes (Steven Rostedt)

- Fix the build on Fedora Rawhide, where readdir_r() is deprecated and
  also wrt -Werror=unused-const-variable= + x86_32_regoffset_table on
  !x86_64 (Arnaldo Carvalho de Melo)

- Fix the build on Ubuntu 12.04.5, where dwarf_getlocations() isn't
  available, i.e. libdw-dev < 0.157 (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 9f448cd3 42ef8a78

tools/build/Makefile.feature

+2 −0
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ endef 
FEATURE_TESTS_BASIC :=			\

	backtrace			\

	dwarf				\

	dwarf_getlocations		\

	fortify-source			\

	sync-compare-and-swap		\

	glibc				\
@@ -78,6 +79,7 @@ endif 


FEATURE_DISPLAY ?=			\

	dwarf				\

	dwarf_getlocations		\

	glibc				\

	gtk2				\

	libaudit			\

tools/build/feature/Makefile

+4 −0
Original line number Diff line number Diff line
@@ -3,6 +3,7 @@ FILES= \ 
	test-backtrace.bin		\

	test-bionic.bin			\

	test-dwarf.bin			\

	test-dwarf_getlocations.bin	\

	test-fortify-source.bin		\

	test-sync-compare-and-swap.bin	\

	test-glibc.bin			\
@@ -82,6 +83,9 @@ endif 
$(OUTPUT)test-dwarf.bin:

	$(BUILD) $(DWARFLIBS)



$(OUTPUT)test-dwarf_getlocations.bin:

	$(BUILD) $(DWARFLIBS)



$(OUTPUT)test-libelf-mmap.bin:

	$(BUILD) -lelf

tools/build/feature/test-all.c

+5 −0
Original line number Diff line number Diff line
@@ -41,6 +41,10 @@ 
# include "test-dwarf.c"

#undef main



#define main main_test_dwarf_getlocations

# include "test-dwarf_getlocations.c"

#undef main



#define main main_test_libelf_getphdrnum

# include "test-libelf-getphdrnum.c"

#undef main
@@ -143,6 +147,7 @@ int main(int argc, char *argv[]) 
	main_test_libelf_mmap();

	main_test_glibc();

	main_test_dwarf();

	main_test_dwarf_getlocations();

	main_test_libelf_getphdrnum();

	main_test_libunwind();

	main_test_libaudit();

tools/build/feature/test-dwarf_getlocations.c

0 → 100644
+12 −0
Original line number Diff line number Diff line 
#include <stdlib.h>

#include <elfutils/libdw.h>



int main(void)

{

	Dwarf_Addr base, start, end;

	Dwarf_Attribute attr;

	Dwarf_Op *op;

        size_t nops;

	ptrdiff_t offset = 0;

        return (int)dwarf_getlocations(&attr, offset, &base, &start, &end, &op, &nops);

}

tools/lib/traceevent/parse-filter.c

+2 −2
Original line number Diff line number Diff line
@@ -1164,11 +1164,11 @@ process_filter(struct event_format *event, struct filter_arg **parg, 
		current_op = current_exp;



	ret = collapse_tree(current_op, parg, error_str);

	/* collapse_tree() may free current_op, and updates parg accordingly */

	current_op = NULL;

	if (ret < 0)

		goto fail;



	*parg = current_op;



	free(token);

	return 0;

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