From: Arnaldo Carvalho de Melo Date: Mon, 22 Feb 2010 19:14:22 +0000 (-0300) Subject: perf top: Use a macro instead of a constant variable X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c7ad21af2c8b7accb893a576b100296c61c5d610;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git perf top: Use a macro instead of a constant variable To overcome a silly gcc warning: cc1: warnings being treated as errors builtin-top.c: In function ‘lookup_sym_source’: builtin-top.c:291: warning: not protecting local variables: variable length buffer make: *** [builtin-top.o] Error 1 make: *** Waiting for unfinished jobs.... That is emitted for this: const size_t pattern_len = BITS_PER_LONG / 4 + 2; char pattern[pattern_len + 1]; Signed-off-by: Arnaldo Carvalho de Melo Cc: Frédéric Weisbecker Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Paul Mackerras LKML-Reference: <1266866062-6287-1-git-send-email-acme@infradead.org> [ -v2: macroify the naming style ] Signed-off-by: Ingo Molnar --- diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index c72ab50d65ca..c6706984b7b3 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -287,19 +287,20 @@ out_unlock: pthread_mutex_unlock(&syme->src->lock); } +#define PATTERN_LEN (BITS_PER_LONG / 4 + 2) + static void lookup_sym_source(struct sym_entry *syme) { struct symbol *symbol = sym_entry__symbol(syme); struct source_line *line; - const size_t pattern_len = BITS_PER_LONG / 4 + 2; - char pattern[pattern_len + 1]; + char pattern[PATTERN_LEN + 1]; sprintf(pattern, "%0*Lx <", BITS_PER_LONG / 4, map__rip_2objdump(syme->map, symbol->start)); pthread_mutex_lock(&syme->src->lock); for (line = syme->src->lines; line; line = line->next) { - if (memcmp(line->line, pattern, pattern_len) == 0) { + if (memcmp(line->line, pattern, PATTERN_LEN) == 0) { syme->src->source = line; break; }