Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755352Ab2JDSYm (ORCPT ); Thu, 4 Oct 2012 14:24:42 -0400 Received: from casper.infradead.org ([85.118.1.10]:39663 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751373Ab2JDSI6 (ORCPT ); Thu, 4 Oct 2012 14:08:58 -0400 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Namhyung Kim , Namhyung Kim , Jiri Olsa , Paul Mackerras , Peter Zijlstra , Arnaldo Carvalho de Melo Subject: [PATCH 04/42] perf tools: Convert to LIBUNWIND_SUPPORT Date: Thu, 4 Oct 2012 15:08:04 -0300 Message-Id: <1349374122-27806-5-git-send-email-acme@infradead.org> X-Mailer: git-send-email 1.7.9.2.358.g22243 In-Reply-To: <1349374122-27806-1-git-send-email-acme@infradead.org> References: <1349374122-27806-1-git-send-email-acme@infradead.org> Content-Type: text/plain; charset="UTF-8" X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4892 Lines: 154 From: Namhyung Kim For building perf without libunwind, we can set NO_LIBUNWIND=1 as a argument of make. It then defines NO_LIBUNWIND_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. Also change NO_PERF_REGS macro to HAVE_PERF_REGS for the same reason. Signed-off-by: Namhyung Kim Acked-by: Jiri Olsa Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1348824728-14025-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Makefile | 8 +++----- tools/perf/builtin-record.c | 14 +++++++------- tools/perf/util/perf_regs.h | 4 ++-- tools/perf/util/unwind.h | 4 ++-- 4 files changed, 14 insertions(+), 16 deletions(-) diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 1df0917..6763024 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -535,9 +535,8 @@ endif # PERF_HAVE_DWARF_REGS endif # NO_DWARF endif # NO_LIBELF -ifdef NO_LIBUNWIND - BASIC_CFLAGS += -DNO_LIBUNWIND_SUPPORT -else +ifndef NO_LIBUNWIND + BASIC_CFLAGS += -DLIBUNWIND_SUPPORT EXTLIBS += $(LIBUNWIND_LIBS) BASIC_CFLAGS := $(LIBUNWIND_CFLAGS) $(BASIC_CFLAGS) BASIC_LDFLAGS := $(LIBUNWIND_LDFLAGS) $(BASIC_LDFLAGS) @@ -747,8 +746,7 @@ ifeq ($(NO_PERF_REGS),0) ifeq ($(ARCH),x86) LIB_H += arch/x86/include/perf_regs.h endif -else - BASIC_CFLAGS += -DNO_PERF_REGS + BASIC_CFLAGS += -DHAVE_PERF_REGS endif ifdef NO_STRLCPY diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index f14cb5f..8c029fe 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -33,11 +33,11 @@ #define CALLCHAIN_HELP "do call-graph (stack chain/backtrace) recording: " -#ifdef NO_LIBUNWIND_SUPPORT -static char callchain_help[] = CALLCHAIN_HELP "[fp]"; -#else +#ifdef LIBUNWIND_SUPPORT static unsigned long default_stack_dump_size = 8192; static char callchain_help[] = CALLCHAIN_HELP "[fp] dwarf"; +#else +static char callchain_help[] = CALLCHAIN_HELP "[fp]"; #endif enum write_mode_t { @@ -800,7 +800,7 @@ error: return ret; } -#ifndef NO_LIBUNWIND_SUPPORT +#ifdef LIBUNWIND_SUPPORT static int get_stack_size(char *str, unsigned long *_size) { char *endptr; @@ -826,7 +826,7 @@ static int get_stack_size(char *str, unsigned long *_size) max_size, str); return -1; } -#endif /* !NO_LIBUNWIND_SUPPORT */ +#endif /* LIBUNWIND_SUPPORT */ static int parse_callchain_opt(const struct option *opt __maybe_unused, const char *arg, @@ -865,7 +865,7 @@ parse_callchain_opt(const struct option *opt __maybe_unused, const char *arg, "needed for -g fp\n"); break; -#ifndef NO_LIBUNWIND_SUPPORT +#ifdef LIBUNWIND_SUPPORT /* Dwarf style */ } else if (!strncmp(name, "dwarf", sizeof("dwarf"))) { ret = 0; @@ -883,7 +883,7 @@ parse_callchain_opt(const struct option *opt __maybe_unused, const char *arg, if (!ret) pr_debug("callchain: stack dump size %d\n", rec->opts.stack_dump_size); -#endif /* !NO_LIBUNWIND_SUPPORT */ +#endif /* LIBUNWIND_SUPPORT */ } else { pr_err("callchain: Unknown -g option " "value: %s\n", arg); diff --git a/tools/perf/util/perf_regs.h b/tools/perf/util/perf_regs.h index 316dbe7..5a4f2b6 100644 --- a/tools/perf/util/perf_regs.h +++ b/tools/perf/util/perf_regs.h @@ -1,7 +1,7 @@ #ifndef __PERF_REGS_H #define __PERF_REGS_H -#ifndef NO_PERF_REGS +#ifdef HAVE_PERF_REGS #include #else #define PERF_REGS_MASK 0 @@ -10,5 +10,5 @@ static inline const char *perf_reg_name(int id __maybe_unused) { return NULL; } -#endif /* NO_PERF_REGS */ +#endif /* HAVE_PERF_REGS */ #endif /* __PERF_REGS_H */ diff --git a/tools/perf/util/unwind.h b/tools/perf/util/unwind.h index a78c8b3..cb6bc50 100644 --- a/tools/perf/util/unwind.h +++ b/tools/perf/util/unwind.h @@ -13,7 +13,7 @@ struct unwind_entry { typedef int (*unwind_entry_cb_t)(struct unwind_entry *entry, void *arg); -#ifndef NO_LIBUNWIND_SUPPORT +#ifdef LIBUNWIND_SUPPORT int unwind__get_entries(unwind_entry_cb_t cb, void *arg, struct machine *machine, struct thread *thread, @@ -31,5 +31,5 @@ unwind__get_entries(unwind_entry_cb_t cb __maybe_unused, { return 0; } -#endif /* NO_LIBUNWIND_SUPPORT */ +#endif /* LIBUNWIND_SUPPORT */ #endif /* __UNWIND_H */ -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/