Enable GCC builtin static analysis in Zephyr's static code analysis
(SCA) infra.
When this option is enabled GCC performs a static analysis and
can point problems like:
sample.c
+ int *j;
+
+ if (j != NULL) {
+ printf("j != NULL\n");
output:
${ZEPHYR_BASE}/samples/userspace/hello_world_user/src/main.c:30:12:
warning: use of uninitialized value 'j' [CWE-457]
[-Wanalyzer-use-of-uninitialized-value]
30 | if (j != NULL) {
| ^
'main': events 1-2
|
| 25 | int *j;
| | ^
| | |
| | (1) region created on stack here
|......
| 30 | if (j != NULL) {
| | ~
| | |
| | (2) use of uninitialized value 'j' here
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>