Changeset 7c8e1e1 in mainline for kernel/arch/sparc64/src/debug/stacktrace_asm.S

Timestamp:

2010-05-21T23:02:10Z (14 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

ecbd287d

Parents:

3500f75 (diff), 0242621 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge initial support for sparc64 kernel stack tracing.

File:

• kernel/arch/sparc64/src/debug/stacktrace_asm.S (modified) (1 diff)

kernel/arch/sparc64/src/debug/stacktrace_asm.S

@@ -27 +27 @@
 #
 
+#include <arch/stack.h>
+
 .text
 
 .global frame_pointer_get
 .global program_counter_get
+.global alloc_window_and_flush
 
 frame_pointer_get:
+        # Add the stack bias to %sp to get the actual address.
         retl
-        nop
+        add %sp, STACK_BIAS, %o0
 
 program_counter_get:
         retl
-        nop
+        mov %o7, %o0
 
+alloc_window_and_flush:
+        save %sp, -(STACK_WINDOW_SAVE_AREA_SIZE+STACK_ARG_SAVE_AREA_SIZE), %sp
+        # Flush all other windows to memory so that we can read their contents.
+        flushw
+        ret
+        restore
+