Changes in kernel/arch/sparc64/src/debug/stacktrace.c [6d7f9bfe:294f7a52] in mainline

File:

• kernel/arch/sparc64/src/debug/stacktrace.c (modified) (1 diff)

kernel/arch/sparc64/src/debug/stacktrace.c

@@ -35 +35 @@
 #include <stacktrace.h>
 #include <syscall/copy.h>
-#include <arch/types.h>
 #include <typedefs.h>
 
-bool kernel_frame_pointer_validate(uintptr_t fp)
+#include <arch.h>
+#include <arch/stack.h>
+#include <arch/trap/trap_table.h>
+
+#if defined(SUN4V)
+#include <arch/sun4v/arch.h>
+#endif
+
+#define FRAME_OFFSET_FP_PREV    14
+#define FRAME_OFFSET_RA         15
+
+extern void alloc_window_and_flush(void);
+
+bool kernel_stack_trace_context_validate(stack_trace_context_t *ctx)
+{
+        uintptr_t kstack;
+        
+#if defined(SUN4U)
+        kstack = read_from_ag_g6();
+#elif defined(SUN4V)
+        kstack = asi_u64_read(ASI_SCRATCHPAD, SCRATCHPAD_KSTACK);
+#endif
+
+        kstack += STACK_BIAS;
+        kstack -= PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE;
+
+        if (THREAD && (ctx->fp == kstack))
+                return false;
+        return ctx->fp != 0;
+}
+
+bool kernel_frame_pointer_prev(stack_trace_context_t *ctx, uintptr_t *prev)
+{
+        uint64_t *stack = (void *) ctx->fp;
+        alloc_window_and_flush();
+        *prev = stack[FRAME_OFFSET_FP_PREV] + STACK_BIAS;
+        return true;
+}
+
+bool kernel_return_address_get(stack_trace_context_t *ctx, uintptr_t *ra)
+{
+        uint64_t *stack = (void *) ctx->fp;
+        alloc_window_and_flush();
+        *ra = stack[FRAME_OFFSET_RA];
+        return true;
+}
+
+bool uspace_stack_trace_context_validate(stack_trace_context_t *ctx)
 {
         return false;
 }
 
-bool kernel_frame_pointer_prev(uintptr_t fp, uintptr_t *prev)
+bool uspace_frame_pointer_prev(stack_trace_context_t *ctx, uintptr_t *prev)
 {
         return false;
 }
 
-bool kernel_return_address_get(uintptr_t fp, uintptr_t *ra)
-{
-        return false;
-}
-
-bool uspace_frame_pointer_validate(uintptr_t fp)
-{
-        return false;
-}
-
-bool uspace_frame_pointer_prev(uintptr_t fp, uintptr_t *prev)
-{
-        return false;
-}
-
-bool uspace_return_address_get(uintptr_t fp, uintptr_t *ra)
+bool uspace_return_address_get(stack_trace_context_t *ctx , uintptr_t *ra)
 {
         return false;