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| author |   Namhyung Kim <namhyung.kim@lge.com> | 2012-09-28 18:32:00 +0900 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-10-02 17:56:01 -0300 |
| commit | 95485b1cda827e4db7102ad5fde1791087a0f4c5 (patch) | |
| tree | 63ea6df23c175b2780c491092b0bcf9bd7dd4746 /tools/perf/builtin-record.c | |
| parent | perf tools: Convert to LIBELF_SUPPORT (diff) | |
| download | linux-dev-95485b1cda827e4db7102ad5fde1791087a0f4c5.tar.xz linux-dev-95485b1cda827e4db7102ad5fde1791087a0f4c5.zip | |
perf tools: Convert to LIBUNWIND_SUPPORT
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 <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1348824728-14025-5-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-record.c')
| -rw-r--r-- | tools/perf/builtin-record.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index f14cb5fdb91f..8c029fe2e22c 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); |