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perf tools: Convert to LIBAUDIT_SUPPORT

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For building perf without libaudit, we can set NO_LIBAUDIT=1 as a
argument of make.  It then defines NO_LIBAUDIT_SUPPORT macro for C code
to do the proper handling.  However it usually used in a negative
semantics - e.g. #ifndef - so we saw double negations which can be
misleading.  Convert it to a positive form to make it more readable.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1348824728-14025-6-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2012-09-28 18:32:01 +09:00 committed by Arnaldo Carvalho de Melo
parent 95485b1cda
commit f315e16850
2 changed files with 3 additions and 5 deletions
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6
tools/perf/Makefile
View File

@ -543,14 +543,12 @@ ifndef NO_LIBUNWIND
LIB_OBJS += $(OUTPUT)util/unwind.o
endif
ifdef NO_LIBAUDIT
BASIC_CFLAGS += -DNO_LIBAUDIT_SUPPORT
else
ifndef NO_LIBAUDIT
FLAGS_LIBAUDIT = $(ALL_CFLAGS) $(ALL_LDFLAGS) -laudit
ifneq ($(call try-cc,$(SOURCE_LIBAUDIT),$(FLAGS_LIBAUDIT)),y)
msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
BASIC_CFLAGS += -DNO_LIBAUDIT_SUPPORT
else
BASIC_CFLAGS += -DLIBAUDIT_SUPPORT
BUILTIN_OBJS += $(OUTPUT)builtin-trace.o
EXTLIBS += -laudit
endif

2
tools/perf/perf.c
View File

@ -55,7 +55,7 @@ static struct cmd_struct commands[] = {
{ "lock", cmd_lock, 0 },
{ "kvm", cmd_kvm, 0 },
{ "test", cmd_test, 0 },
#ifndef NO_LIBAUDIT_SUPPORT
#ifdef LIBAUDIT_SUPPORT
{ "trace", cmd_trace, 0 },
#endif
{ "inject", cmd_inject, 0 },