sh: Add kprobes support.
Initial support for kprobes/kretprobes for 32-bit SH platforms.
[ General cleanup and some rework for the kretprobe hash lock. -- PFM ]
Signed-off-by: Chris Smith <chris.smith@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/kernel/traps_32.c b/arch/sh/kernel/traps_32.c
index 4901f67..862667a 100644
--- a/arch/sh/kernel/traps_32.c
+++ b/arch/sh/kernel/traps_32.c
@@ -26,6 +26,7 @@
#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/fpu.h>
+#include <asm/kprobes.h>
#ifdef CONFIG_SH_KGDB
#include <asm/kgdb.h>
@@ -743,6 +744,10 @@
struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
unsigned long error_code;
struct task_struct *tsk = current;
+
+ if (kprobe_handle_illslot(regs->pc) == 0)
+ return;
+
#ifdef CONFIG_SH_FPU_EMU
unsigned short inst = 0;