X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fx86_64%2Fia32%2Fptrace32.c;h=b98b6d2462f6b43fb8b6ecd7f07a50c6b00cb277;hb=6a77f38946aaee1cd85eeec6cf4229b204c15071;hp=4445da812ecf61d284da857564207a0784ca6d0f;hpb=87fc8d1bb10cd459024a742c6a10961fefcef18f;p=linux-2.6.git

diff --git a/arch/x86_64/ia32/ptrace32.c b/arch/x86_64/ia32/ptrace32.c
index 4445da812..b98b6d246 100644
--- a/arch/x86_64/ia32/ptrace32.c
+++ b/arch/x86_64/ia32/ptrace32.c
@@ -109,7 +109,8 @@ static int putreg32(struct task_struct *child, unsigned regno, u32 val)
 
 	case offsetof(struct user32, u_debugreg[7]):
 		val &= ~DR_CONTROL_RESERVED;
-		/* You are not expected to understand this ... I don't neither. */
+		/* See arch/i386/kernel/ptrace.c for an explanation of
+		 * this awkward check.*/
 		for(i=0; i<4; i++)
 			if ((0x5454 >> ((val >> (16 + 4*i)) & 0xf)) & 1)
 			       return -EIO;
@@ -357,14 +358,14 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 			break;
 		/* no checking to be bug-to-bug compatible with i386 */
 		__copy_from_user(&child->thread.i387.fxsave, u, sizeof(*u));
-		child->used_math = 1;
+		set_stopped_child_used_math(child);
 		child->thread.i387.fxsave.mxcsr &= mxcsr_feature_mask;
 		ret = 0; 
 		break;
 	}
 
 	case PTRACE_GETEVENTMSG:
-		ret = put_user(child->ptrace_message,(unsigned int __user *)(u64)data);
+		ret = put_user(child->ptrace_message,(unsigned int __user *)compat_ptr(data));
 		break;
 
 	default: