[v2][PATCH 5/6] powerpc/book3e: support kgdb for kernel space

Tiejun Chen
2013-01-21T07:44:59Z

Currently we need to skip this for supporting KGDB.

Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
---
arch/powerpc/kernel/exceptions-64e.S | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S
index 423a936..6204681 100644
--- a/arch/powerpc/kernel/exceptions-64e.S
+++ b/arch/powerpc/kernel/exceptions-64e.S
@@ -589,11 +589,14 @@ kernel_dbg_exc:
rfdi

/* Normal debug exception */
+1:
+#ifndef CONFIG_KGDB
/* XXX We only handle coming from userspace for now since we can't
* quite save properly an interrupted kernel state yet
*/
-1: andi. r14,r11,MSR_PR; /* check for userspace again */
+ andi. r14,r11,MSR_PR; /* check for userspace again */
beq kernel_dbg_exc; /* if from kernel mode */
+#endif

/* Now we mash up things to make it look like we are coming on a
* normal exception
--
1.7.9.5