summaryrefslogtreecommitdiffstats
path: root/tools/perf/util/expr.l
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-06-19 21:00:37 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-06-19 21:00:37 +0000
commit94ac2ab3fff96814d7460a27a0e9d004abbd4128 (patch)
tree9a4eb8cc234b540b0f4b93363109cdd37a20540b /tools/perf/util/expr.l
parentAdding debian version 6.8.12-1. (diff)
downloadlinux-94ac2ab3fff96814d7460a27a0e9d004abbd4128.tar.xz
linux-94ac2ab3fff96814d7460a27a0e9d004abbd4128.zip
Merging upstream version 6.9.2.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/perf/util/expr.l')
-rw-r--r--tools/perf/util/expr.l9
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/perf/util/expr.l b/tools/perf/util/expr.l
index 0feef0726c..a2fc43159e 100644
--- a/tools/perf/util/expr.l
+++ b/tools/perf/util/expr.l
@@ -94,6 +94,14 @@ static int literal(yyscan_t scanner, const struct expr_scanner_ctx *sctx)
}
return LITERAL;
}
+
+static int nan_value(yyscan_t scanner)
+{
+ YYSTYPE *yylval = expr_get_lval(scanner);
+
+ yylval->num = NAN;
+ return NUMBER;
+}
%}
number ([0-9]+\.?[0-9]*|[0-9]*\.?[0-9]+)(e-?[0-9]+)?
@@ -115,6 +123,7 @@ else { return ELSE; }
source_count { return SOURCE_COUNT; }
has_event { return HAS_EVENT; }
strcmp_cpuid_str { return STRCMP_CPUID_STR; }
+NaN { return nan_value(yyscanner); }
{literal} { return literal(yyscanner, sctx); }
{number} { return value(yyscanner); }
{symbol} { return str(yyscanner, ID, sctx->runtime); }