forked from Minki/linux
perf expr: Parse numbers as doubles
This is expected in expr.y and metrics use floating point values such as
x86 broadwell IFetch_Line_Utilization.
Fixes: 26226a9772
(perf expr: Move expr lexer to flex)
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Kajol Jain <kjain@linux.ibm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Haiyan Song <haiyanx.song@intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20200501173333.227162-7-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
parent
f59d3f84a0
commit
7db2fd0b21
@ -10,12 +10,12 @@
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char *expr_get_text(yyscan_t yyscanner);
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YYSTYPE *expr_get_lval(yyscan_t yyscanner);
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static int __value(YYSTYPE *yylval, char *str, int base, int token)
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static double __value(YYSTYPE *yylval, char *str, int token)
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{
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u64 num;
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double num;
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errno = 0;
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num = strtoull(str, NULL, base);
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num = strtod(str, NULL);
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if (errno)
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return EXPR_ERROR;
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@ -23,12 +23,12 @@ static int __value(YYSTYPE *yylval, char *str, int base, int token)
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return token;
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}
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static int value(yyscan_t scanner, int base)
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static int value(yyscan_t scanner)
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{
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YYSTYPE *yylval = expr_get_lval(scanner);
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char *text = expr_get_text(scanner);
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return __value(yylval, text, base, NUMBER);
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return __value(yylval, text, NUMBER);
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}
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/*
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@ -81,7 +81,7 @@ static int str(yyscan_t scanner, int token, int runtime)
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}
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%}
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number [0-9]+
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number [0-9]*\.?[0-9]+
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sch [-,=]
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spec \\{sch}
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@ -105,7 +105,7 @@ min { return MIN; }
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if { return IF; }
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else { return ELSE; }
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#smt_on { return SMT_ON; }
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{number} { return value(yyscanner, 10); }
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{number} { return value(yyscanner); }
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{symbol} { return str(yyscanner, ID, sctx->runtime); }
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"|" { return '|'; }
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"^" { return '^'; }
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