powerpc: Update compat_arch_ptrace

Update compat_arch_ptrace to follow recent changes in
PTRACE_GET_DEBUGREG and the addition of
PPC_PTRACE_{GETHWDBGINFO|{SET|DEL}HWDEBUG}.  The latter three can be
forwarded to arch_ptrace unchanged.

Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/ptrace32.c b/arch/powerpc/kernel/ptrace32.c
index 8a6daf4129f6..69c4be917d07 100644
--- a/arch/powerpc/kernel/ptrace32.c
+++ b/arch/powerpc/kernel/ptrace32.c
@@ -280,7 +280,11 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
                 /* We only support one DABR and no IABRS at the moment */
                 if (addr > 0)
                         break;
+#ifdef CONFIG_PPC_ADV_DEBUG_REGS
+                ret = put_user(child->thread.dac1, (u32 __user *)data);
+#else
                 ret = put_user(child->thread.dabr, (u32 __user *)data);
+#endif
                 break;
         }
 
@@ -312,6 +316,9 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
         case PTRACE_SET_DEBUGREG:
         case PTRACE_SYSCALL:
         case PTRACE_CONT:
+        case PPC_PTRACE_GETHWDBGINFO:
+        case PPC_PTRACE_SETHWDEBUG:
+        case PPC_PTRACE_DELHWDEBUG:
                 ret = arch_ptrace(child, request, addr, data);
                 break;