[LTP] [PATCH 8/9] metadata: metaparse: Add a few pre-defined macros

[Cyril Hrubis]

This is used mostly for stripping macro prefixes such as:

...
    "save_restore": [
      [
       "/proc/sys/user/max_user_namespaces",
       null,
-      "TST_SR_SKIP"
+      "SKIP"
      ],
...
-   "needs_cgroup_ver": "TST_CG_V2",
+   "needs_cgroup_ver": "2",
...

Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
---
 metadata/metaparse.c | 47 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/metadata/metaparse.c b/metadata/metaparse.c
index 29c03e5c3..fa30be727 100644
--- a/metadata/metaparse.c
+++ b/metadata/metaparse.c
@@ -760,6 +760,51 @@ static void parse_include_macros(FILE *f, int level)
 	close_include(inc);
 }
 
+/* pre-defined macros that makes the output cleaner. */
+static const struct macro {
+	char *from;
+	char *to;
+} internal_macros[] = {
+	{"TST_CG_V2", "2"},
+	{"TST_CG_V1", "1"},
+	{"TST_KB", "1024"},
+	{"TST_MB", "1048576"},
+	{"TST_GB", "1073741824"},
+	{"TST_SR_TBROK", "TBROK"},
+	{"TST_SR_TCONF", "TCONF"},
+	{"TST_SR_SKIP", "SKIP"},
+	{"TST_SR_TBROK_MISSING", "TBROK_MISSING"},
+	{"TST_SR_TCONF_MISSING", "TCONF_MISSING"},
+	{"TST_SR_SKIP_MISSING", "SKIP_MISSING"},
+	{"TST_SR_TBROK_RO", "TBROK_RO"},
+	{"TST_SR_TCONF_RO", "TCONF_RO"},
+	{"TST_SR_SKIP_RO", "SKIP_RO"},
+	{}
+};
+
+static void load_internal_macros(void)
+{
+	unsigned int i;
+
+	if (verbose)
+		fprintf(stderr, "PREDEFINED MACROS\n");
+
+	for (i = 0; internal_macros[i].from; i++) {
+		ENTRY e = {
+			.key = internal_macros[i].from,
+			.data = internal_macros[i].to,
+		};
+
+		if (verbose)
+			fprintf(stderr, " MACRO %s=%s\n", e.key, (char*)e.data);
+
+		hsearch(e, ENTER);
+	}
+
+	if (verbose)
+		fprintf(stderr, "END PREDEFINED MACROS\n");
+}
+
 static struct data_node *parse_file(const char *fname)
 {
 	int state = 0, found = 0;
@@ -777,6 +822,8 @@ static struct data_node *parse_file(const char *fname)
 	struct data_node *res = data_node_hash();
 	struct data_node *doc = data_node_array();
 
+	load_internal_macros();
+
 	while ((token = next_token(f, doc))) {
 		if (state < 6 && !strcmp(tokens[state], token)) {
 			state++;
-- 
2.45.2