[POWERPC] Set lower flag bits in regs->trap to indicate debug level exception

We use the low bits of regs->trap as flag bits.  We already indicate
critical and machine check level exceptions via this mechanism.  Extend it
to indicate debug level exceptions.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/asm-powerpc/ptrace.h b/include/asm-powerpc/ptrace.h
index 39023dde1cc4..38d87e5e569d 100644
--- a/include/asm-powerpc/ptrace.h
+++ b/include/asm-powerpc/ptrace.h
@@ -119,6 +119,7 @@ extern int ptrace_put_reg(struct task_struct *task, int regno,
 #ifndef __powerpc64__
 #define IS_CRITICAL_EXC(regs)   (((regs)->trap & 2) != 0)
 #define IS_MCHECK_EXC(regs)     (((regs)->trap & 4) != 0)
+#define IS_DEBUG_EXC(regs)      (((regs)->trap & 8) != 0)
 #endif /* ! __powerpc64__ */
 #define TRAP(regs)              ((regs)->trap & ~0xF)
 #ifdef __powerpc64__