[v1][PATCH 5/6] powerpc/book3e: support kgdb for kernel space
Tiejun Chen
tiejun.chen at windriver.com
Thu Dec 20 20:08:29 EST 2012
Currently we need to skip this for supporting KGDB.
Signed-off-by: Tiejun Chen <tiejun.chen at 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 9a99cba..a24baef 100644
--- a/arch/powerpc/kernel/exceptions-64e.S
+++ b/arch/powerpc/kernel/exceptions-64e.S
@@ -588,11 +588,14 @@ 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
More information about the Linuxppc-dev
mailing list