From cfb0ec01b9e28ff5d94c8b73c2b49a7ade4e3597 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 14 Aug 2018 15:53:04 +0300
Subject: [PATCH] db: introduce the --db-file=/path/to/smatch_db.sqlite option

When you build recursively, then it doesn't work to look for the db in
the working directory.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 smatch.c    | 8 +++++++-
 smatch.h    | 2 +-
 smatch_db.c | 4 ++--
 3 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/smatch.c b/smatch.c
index ae5198c1..4ad13f0f 100644
--- a/smatch.c
+++ b/smatch.c
@@ -23,6 +23,7 @@
 
 char *option_debug_check = (char *)"";
 char *option_project_str = (char *)"smatch_generic";
+static char *option_db_file = (char *)"smatch_db.sqlite";
 enum project_type option_project = PROJ_NONE;
 char *bin_dir;
 char *data_dir;
@@ -190,6 +191,11 @@ void parse_args(int *argcp, char ***argvp)
 			(*argvp)[1] = (*argvp)[0];
 			found = 1;
 		}
+		if (!found && !strncmp((*argvp)[1], "--db-file=", 10)) {
+			option_db_file = (*argvp)[1] + 10;
+			(*argvp)[1] = (*argvp)[0];
+			found = 1;
+		}
 		if (!found && !strncmp((*argvp)[1], "--data=", 7)) {
 			option_datadir_str = (*argvp)[1] + 7;
 			(*argvp)[1] = (*argvp)[0];
@@ -320,7 +326,7 @@ int main(int argc, char **argv)
 
 	allocate_hook_memory();
 	create_function_hook_hash();
-	open_smatch_db();
+	open_smatch_db(option_db_file);
 	for (i = 1; i < ARRAY_SIZE(reg_funcs); i++) {
 		func = reg_funcs[i].func;
 		/* The script IDs start at 1.
diff --git a/smatch.h b/smatch.h
index 0f9a2bb8..6ddf155c 100644
--- a/smatch.h
+++ b/smatch.h
@@ -892,7 +892,7 @@ void sql_select_return_states(const char *cols, struct expression *call,
 void sql_select_call_implies(const char *cols, struct expression *call,
 	int (*callback)(void*, int, char**, char**));
 
-void open_smatch_db(void);
+void open_smatch_db(char *db_file);
 
 /* smatch_files.c */
 int open_data_file(const char *filename);
diff --git a/smatch_db.c b/smatch_db.c
index 0896330c..be81f6e6 100644
--- a/smatch_db.c
+++ b/smatch_db.c
@@ -2197,7 +2197,7 @@ static void dump_cache(struct symbol_list *sym_list)
 	cache_sql(&save_cache_data, (char *)"call_implies", "select * from call_implies;");
 }
 
-void open_smatch_db(void)
+void open_smatch_db(char *db_file)
 {
 	int rc;
 
@@ -2210,7 +2210,7 @@ void open_smatch_db(void)
 	init_memdb();
 	init_cachedb();
 
-	rc = sqlite3_open_v2("smatch_db.sqlite", &smatch_db, SQLITE_OPEN_READONLY, NULL);
+	rc = sqlite3_open_v2(db_file, &smatch_db, SQLITE_OPEN_READONLY, NULL);
 	if (rc != SQLITE_OK) {
 		option_no_db = 1;
 		return;
-- 
2.11.4.GIT