PSCI: Add deprecated API for SPD when compatibility is disabled
This patch defines deprecated platform APIs to enable Trusted
Firmware components like Secure Payload and their dispatchers(SPD)
to continue to build and run when platform compatibility is disabled.
This decouples the migration of platform ports to the new platform API
from SPD and enables them to be migrated independently. The deprecated
platform APIs defined in this patch are : platform_get_core_pos(),
platform_get_stack() and platform_set_stack().
The patch also deprecates MPIDR based context management helpers like
cm_get_context_by_mpidr(), cm_set_context_by_mpidr() and cm_init_context().
A mechanism to deprecate APIs and identify callers of these APIs during
build is introduced, which is controlled by the build flag WARN_DEPRECATED.
If WARN_DEPRECATED is defined to 1, the users of the deprecated APIs will be
flagged either as a link error for assembly files or compile time warning
for C files during build.
Change-Id: Ib72c7d5dc956e1a74d2294a939205b200f055613
diff --git a/include/common/asm_macros.S b/include/common/asm_macros.S
index f959eb4..128259f 100644
--- a/include/common/asm_macros.S
+++ b/include/common/asm_macros.S
@@ -100,6 +100,29 @@
.endm
/*
+ * Theses macros are used to create function labels for deprecated
+ * APIs. If WARN_DEPRECATED is non zero, the callers of these APIs
+ * will fail to link and cause build failure.
+ */
+#if WARN_DEPRECATED
+ .macro func_deprecated _name
+ func deprecated\_name
+ .endm
+
+ .macro endfunc_deprecated _name
+ endfunc deprecated\_name
+ .endm
+#else
+ .macro func_deprecated _name
+ func \_name
+ .endm
+
+ .macro endfunc_deprecated _name
+ endfunc \_name
+ .endm
+#endif
+
+ /*
* This macro declares an array of 1 or more stacks, properly
* aligned and in the requested section
*/