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authorIan Rogers <irogers@google.com>2022-05-27 05:06:53 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2022-06-19 16:41:43 +0300
commite5287e6dd3b07e28e6bca5e33a3813a5e83bbc4c (patch)
tree62e5e875cb348b2d08f1e339aa87b7821c8e9026 /tools/perf/util
parentb236371421df57b93fc49c4b9d0e53bd1aab2b2e (diff)
downloadlinux-e5287e6dd3b07e28e6bca5e33a3813a5e83bbc4c.tar.xz
perf expr: Allow exponents on floating point values
Pass the optional exponent component through to strtod that already supports it. We already have exponents in ScaleUnit and so this adds uniformity. Reported-by: Zhengjun Xing <zhengjun.xing@linux.intel.com> Reviewed-By: Kajol Jain <kjain@linux.ibm.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Richter <tmricht@linux.ibm.com> Link: https://lore.kernel.org/r/20220527020653.4160884-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util')
-rw-r--r--tools/perf/util/expr.l2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/expr.l b/tools/perf/util/expr.l
index 0a13eb20c814..4dc8edbfd9ce 100644
--- a/tools/perf/util/expr.l
+++ b/tools/perf/util/expr.l
@@ -91,7 +91,7 @@ static int literal(yyscan_t scanner)
}
%}
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+number ([0-9]+\.?[0-9]*|[0-9]*\.?[0-9]+)(e-?[0-9]+)?
sch [-,=]
spec \\{sch}