[MIPS] TRACE_IRQFLAGS_SUPPORT support.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 14 insertions, 1 deletions

diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index c8e5f9c9a113..ba1bcd83c7d3 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -3,13 +3,14 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (C) 1995, 96, 97, 98, 99, 2000, 01, 02 by Ralf Baechle
+ * Copyright (C) 1995-99, 2000- 02, 06 Ralf Baechle <ralf@linux-mips.org>
  * Copyright (C) 2001 MIPS Technologies, Inc.
  * Copyright (C) 2004 Thiemo Seufer
  */
 #include <linux/errno.h>
 #include <asm/asm.h>
 #include <asm/asmmacro.h>
+#include <asm/irqflags.h>
 #include <asm/mipsregs.h>
 #include <asm/regdef.h>
 #include <asm/stackframe.h>
@@ -27,6 +28,18 @@
 NESTED(handle_sys, PT_SIZE, sp)
         .set    noat
         SAVE_SOME
+#ifdef CONFIG_TRACE_IRQFLAGS
+        TRACE_IRQS_ON
+#ifdef CONFIG_64BIT
+        LONG_L  $8, PT_R8(sp)
+        LONG_L  $9, PT_R9(sp)
+#endif
+        LONG_L  $7, PT_R7(sp)
+        LONG_L  $6, PT_R6(sp)
+        LONG_L  $5, PT_R5(sp)
+        LONG_L  $4, PT_R4(sp)
+        LONG_L  $2, PT_R2(sp)
+#endif
         STI
         .set    at