perf expr: Add expr.c object

Add generic expr code into new expr.c object.

The expr.c object will be mainly used in following change that will get
rid of the manual flex code,

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Link: http://lore.kernel.org/lkml/20200228093616.67125-2-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 07da6c7..6fdf073 100644 (file)
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -122,6 +122,7 @@ perf-y += vsprintf.o
 perf-y += units.o
 perf-y += time-utils.o
 perf-y += expr-bison.o
+perf-y += expr.o
 perf-y += branch.o
 perf-y += mem2node.o
 

diff --git a/tools/perf/util/expr.c b/tools/perf/util/expr.c
new file mode 100644 (file)
index 0000000..816b23b
--- /dev/null
+++ b/tools/perf/util/expr.c
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <assert.h>
+#include "expr.h"
+
+/* Caller must make sure id is allocated */
+void expr__add_id(struct parse_ctx *ctx, const char *name, double val)
+{
+       int idx;
+
+       assert(ctx->num_ids < MAX_PARSE_ID);
+       idx = ctx->num_ids++;
+       ctx->ids[idx].name = name;
+       ctx->ids[idx].val = val;
+}
+
+void expr__ctx_init(struct parse_ctx *ctx)
+{
+       ctx->num_ids = 0;
+}

diff --git a/tools/perf/util/expr.y b/tools/perf/util/expr.y
index 7d22624..7cea8b7 100644 (file)
--- a/tools/perf/util/expr.y
+++ b/tools/perf/util/expr.y
@@ -6,7 +6,6 @@
 #define IN_EXPR_Y 1
 #include "expr.h"
 #include "smt.h"
-#include <assert.h>
 #include <string.h>
 
 #define MAXIDLEN 256
@@ -169,21 +168,6 @@ static int expr__lex(YYSTYPE *res, const char **pp)
        return tok;
 }
 
-/* Caller must make sure id is allocated */
-void expr__add_id(struct parse_ctx *ctx, const char *name, double val)
-{
-       int idx;
-       assert(ctx->num_ids < MAX_PARSE_ID);
-       idx = ctx->num_ids++;
-       ctx->ids[idx].name = name;
-       ctx->ids[idx].val = val;
-}
-
-void expr__ctx_init(struct parse_ctx *ctx)
-{
-       ctx->num_ids = 0;
-}
-
 static bool already_seen(const char *val, const char *one, const char **other,
                         int num_other)
 {