Changes in kernel/arch/ppc32/src/debug/stacktrace.c [da1bafb:d99c1d2] in mainline

File:

• kernel/arch/ppc32/src/debug/stacktrace.c (modified) (1 diff)

kernel/arch/ppc32/src/debug/stacktrace.c

@@ -37 +37 @@
 #include <typedefs.h>
 
-#define FRAME_OFFSET_FP_PREV  0
-#define FRAME_OFFSET_RA       1
-
 bool kernel_frame_pointer_validate(uintptr_t fp)
 {
-        return fp != 0;
+        return false;
 }
 
 bool kernel_frame_pointer_prev(uintptr_t fp, uintptr_t *prev)
 {
-        uint32_t *stack = (void *) fp;
-        *prev = stack[FRAME_OFFSET_FP_PREV];
-        return true;
+        return false;
 }
 
 bool kernel_return_address_get(uintptr_t fp, uintptr_t *ra)
 {
-        uint32_t *stack = (void *) fp;
-        *ra = stack[FRAME_OFFSET_RA];
-        return true;
+        return false;
 }
 
 bool uspace_frame_pointer_validate(uintptr_t fp)
 {
-        return fp != 0;
+        return false;
 }
 
 bool uspace_frame_pointer_prev(uintptr_t fp, uintptr_t *prev)
 {
-        return !copy_from_uspace((void *) prev,
-            (uint32_t *) fp + FRAME_OFFSET_FP_PREV, sizeof(*prev));
+        return false;
 }
 
 bool uspace_return_address_get(uintptr_t fp, uintptr_t *ra)
 {
-        return !copy_from_uspace((void *) ra, (uint32_t *) fp + FRAME_OFFSET_RA,
-            sizeof(*ra));
+        return false;
 }