On Mon, Jan 21, 2019 at 15:13:21 +0000, Richard W.M. Jones wrote:
GCC 9 gives pages of errors like:
qemumonitorjsontest.c: In function 'mymain':
qemumonitorjsontest.c:2904:9: error: jump skips variable initialization
[-Werror=jump-misses-init]
2904 | goto cleanup;
| ^~~~
qemumonitorjsontest.c:3111:2: note: label 'cleanup' defined here
3111 | cleanup:
| ^~~~~~~
qemumonitorjsontest.c:2920:54: note: '({anonymous})' declared here
2920 | simpleFunc = (testQemuMonitorJSONSimpleFuncData) {.xmlopt = driver.xmlopt, \
| ^
qemumonitorjsontest.c:3008:5: note: in expansion of macro 'DO_TEST_GEN'
3008 | DO_TEST_GEN(qemuMonitorJSONBlockdevMediumInsert);
| ^~~~~~~~~~~
By moving the cleanup section up near the top of the function we can
avoid this. I think a better way might be to disable the warning.
---
tests/qemumonitorjsontest.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/tests/qemumonitorjsontest.c b/tests/qemumonitorjsontest.c
index 1a8a31717f..299c5f0cbe 100644
--- a/tests/qemumonitorjsontest.c
+++ b/tests/qemumonitorjsontest.c
@@ -2900,8 +2900,12 @@ mymain(void)
if (!(qapiData.schema = testQEMUSchemaLoad())) {
VIR_TEST_VERBOSE("failed to load qapi schema\n");
- ret = -1;
- goto cleanup;
+ cleanup:
+ VIR_FREE(metaschemastr);
+ virJSONValueFree(metaschema);
+ virHashFree(qapiData.schema);
+ qemuTestDriverFree(&driver);
+ return -1;
}
#define DO_TEST(name) \
@@ -3098,7 +3102,6 @@ mymain(void)
if (!(metaschema = testQEMUSchemaGetLatest()) ||
!(metaschemastr = virJSONValueToString(metaschema, false))) {
VIR_TEST_VERBOSE("failed to load latest qapi schema\n");
- ret = -1;
goto cleanup;
We generally avoid jumps back. Also cleanup really should be at the end.
Wouldn't be enough just to memset the few structs at the beginning?