Fix building with `MBEDTLS_TEST_HOOKS` enabled
Fix building by adding `common.c` to the build scripts (both make and Cmake).
Also reworks the hook function pointer (also renamed to `err_add_hook`) to be
a static local to `common.c` with a setter function to set the pointer to a
checking function.
Signed-off-by: Chris Jones <christopher.jones@arm.com>
diff --git a/library/common.h b/library/common.h
index f4cef97..a9b6187 100644
--- a/library/common.h
+++ b/library/common.h
@@ -48,12 +48,18 @@
#define MBEDTLS_STATIC_TESTABLE
/** Helper macro and function to combine a high and low level error code.
- *
+ *
* This function uses a hook (`mbedtls_test_err_add_hook`) to allow invasive
* testing of its inputs. This is used in the test infrastructure to report
* on errors when combining two error codes of the same level (e.g: two high
* or two low level errors).
+ *
+ * To set a hook use
+ * ```
+ * mbedtls_set_err_add_hook(&mbedtls_check_foo);
+ * ```
*/
+void mbedtls_set_err_add_hook( void *hook );
int mbedtls_err_add( int high, int low, const char *file, int line );
#define MBEDTLS_ERR_ADD( high, low ) \
( mbedtls_err_add( high, low, __FILE__, __LINE__ ) )