Clean usage of void pointers to access symbols
Void pointers have been used to access linker symbols, by declaring an
extern pointer, then taking the address of it. This limits symbols
values to aligned pointer values. To remove this restriction an
IMPORT_SYM macro has been introduced, which declares it as a char
pointer and casts it to the required type.
Change-Id: I89877fc3b13ed311817bb8ba79d4872b89bfd3b0
Signed-off-by: Joel Hutton <Joel.Hutton@Arm.com>
diff --git a/include/common/runtime_svc.h b/include/common/runtime_svc.h
index d12af22..5d9fa39 100644
--- a/include/common/runtime_svc.h
+++ b/include/common/runtime_svc.h
@@ -122,8 +122,8 @@
void runtime_svc_init(void);
uintptr_t handle_runtime_svc(uint32_t smc_fid, void *cookie, void *handle,
unsigned int flags);
-extern uintptr_t __RT_SVC_DESCS_START__;
-extern uintptr_t __RT_SVC_DESCS_END__;
+IMPORT_SYM(uintptr_t, __RT_SVC_DESCS_START__, RT_SVC_DESCS_START);
+IMPORT_SYM(uintptr_t, __RT_SVC_DESCS_END__, RT_SVC_DESCS_END);
void init_crash_reporting(void);
extern uint8_t rt_svc_descs_indices[MAX_RT_SVCS];