From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@ppc970.osdl.org>
Date: Sat, 16 Apr 2005 15:20:36 -0700
Subject: Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
---
 arch/alpha/lib/dbg_stackkill.S | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 arch/alpha/lib/dbg_stackkill.S

(limited to 'arch/alpha/lib/dbg_stackkill.S')

diff --git a/arch/alpha/lib/dbg_stackkill.S b/arch/alpha/lib/dbg_stackkill.S
new file mode 100644
index 000000000000..e09f2ae1e09e
--- /dev/null
+++ b/arch/alpha/lib/dbg_stackkill.S
@@ -0,0 +1,35 @@
+/*
+ * arch/alpha/lib/killstack.S
+ * Contributed by Richard Henderson (rth@cygnus.com)
+ *
+ * Clobber the balance of the kernel stack, hoping to catch
+ * uninitialized local variables in the act.
+ */
+
+#include <asm/asm_offsets.h>
+
+	.text
+	.set noat
+
+	.align 5
+	.globl _mcount
+	.ent _mcount
+_mcount:
+	.frame $30, 0, $28, 0
+	.prologue 0
+
+	ldi	$0, 0xdeadbeef
+	lda	$2, -STACK_SIZE
+	sll	$0, 32, $1
+	and	$30, $2, $2
+	or	$0, $1, $0
+	lda	$2, TASK_SIZE($2)
+	cmpult	$2, $30, $1
+	beq	$1, 2f
+1:	stq	$0, 0($2)
+	addq	$2, 8, $2
+	cmpult	$2, $30, $1
+	bne	$1, 1b
+2:	ret	($28)
+
+	.end _mcount
-- 
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