From bd353861c735b2265c9d8b2559960c693e7c68ab Mon Sep 17 00:00:00 2001
From: Matt Fleming <matt@console-pimps.org>
Date: Fri, 14 Aug 2009 01:58:43 +0900
Subject: sh: dwarf unwinder support.

This is a first cut at a generic DWARF unwinder for the kernel. It's
still lacking DWARF64 support and the DWARF expression support hasn't
been tested very well but it is generating proper stacktraces on SH for
WARN_ON() and NULL dereferences.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/irq.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'arch/sh/kernel/irq.c')

diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c
index 278c68c60488..2bb43dc74f22 100644
--- a/arch/sh/kernel/irq.c
+++ b/arch/sh/kernel/irq.c
@@ -14,6 +14,7 @@
 #include <asm/processor.h>
 #include <asm/machvec.h>
 #include <asm/uaccess.h>
+#include <asm/dwarf.h>
 #include <asm/thread_info.h>
 #include <cpu/mmu_context.h>
 
@@ -261,6 +262,9 @@ void __init init_IRQ(void)
 		sh_mv.mv_init_irq();
 
 	irq_ctx_init(smp_processor_id());
+
+	/* This needs to be early, but not too early.. */
+	dwarf_unwinder_init();
 }
 
 #ifdef CONFIG_SPARSE_IRQ
-- 
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