X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/8f6c56a50524aa785f7e596d52dddfb331e18961..89b3af67bb32e691275bf6fa803d1834b2284115:/bsd/dev/ppc/systemcalls.c

diff --git a/bsd/dev/ppc/systemcalls.c b/bsd/dev/ppc/systemcalls.c
index 623485306..39ae16682 100644
--- a/bsd/dev/ppc/systemcalls.c
+++ b/bsd/dev/ppc/systemcalls.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -122,16 +122,11 @@ unix_syscall(struct savearea	*regs)
 	if (uthread->uu_ucred != proc->p_ucred &&
 	    (uthread->uu_flag & UT_SETUID) == 0) {
 		kauth_cred_t old = uthread->uu_ucred;
-		proc_lock(proc);
-		uthread->uu_ucred = proc->p_ucred;
-		kauth_cred_ref(uthread->uu_ucred);
-		proc_unlock(proc);
-		if (old != NOCRED)
-			kauth_cred_rele(old);
+		uthread->uu_ucred = kauth_cred_proc_ref(proc);
+		if (IS_VALID_CRED(old))
+			kauth_cred_unref(&old);
 	}
 
-	uthread->uu_ar0 = (int *)regs;
-
 	callp = (code >= nsysent) ? &sysent[63] : &sysent[code];
 
 	if (callp->sy_narg != 0) {
@@ -329,7 +324,6 @@ unix_syscall_return(int error)
 	struct savearea				*regs;
 	unsigned short				code;
 	struct sysent				*callp;
-	int funnel_type;
 	unsigned int cancel_enable;
 
 	thread_act = current_thread();
@@ -447,90 +441,9 @@ unix_syscall_return(int error)
 	/* NOTREACHED */
 }
 
-/* 
- * Time of day and interval timer support.
- *
- * These routines provide the kernel entry points to get and set
- * the time-of-day and per-process interval timers.  Subroutines
- * here provide support for adding and subtracting timeval structures
- * and decrementing interval timers, optionally reloading the interval
- * timers when they expire.
- */
-/*  NOTE THIS implementation is for  ppc architectures only.
- *  It is infrequently called, since the commpage intercepts
- *  most calls in user mode.
- *
- * XXX Y2038 bug because of assumed return of 32 bit seconds value, and
- * XXX first parameter to clock_gettimeofday()
- */
-int
-ppc_gettimeofday(__unused struct proc *p, 
-				 register struct ppc_gettimeofday_args *uap, 
-				 register_t *retval)
-{
-	int error = 0;
-	extern lck_spin_t * tz_slock;
-
-	if (uap->tp)
-		clock_gettimeofday(&retval[0], &retval[1]);
-	
-	if (uap->tzp) {
-		struct timezone ltz;
-
-		lck_spin_lock(tz_slock);
-		ltz = tz;
-		lck_spin_unlock(tz_slock);
-		error = copyout((caddr_t)&ltz, uap->tzp, sizeof (tz));
-	}
-
-	return (error);
-}
-
 #ifdef JOE_DEBUG
 joe_debug(char *p) {
 
         printf("%s\n", p);
 }
 #endif
-
-
-/* 
- * WARNING - this is a temporary workaround for binary compatibility issues
- * with anti-piracy software that relies on patching ptrace (3928003).
- * This KPI will be removed in the system release after Tiger.
- */
-uintptr_t temp_patch_ptrace(uintptr_t new_ptrace)
-{
-	struct sysent *		callp;
-	sy_call_t *			old_ptrace;
-
-	if (new_ptrace == 0)
-		return(0);
-		
-	enter_funnel_section(kernel_flock);
-	callp = &sysent[26];
-	old_ptrace = callp->sy_call;
-	
-	/* only allow one patcher of ptrace */
-	if (old_ptrace == (sy_call_t *) ptrace) {
-		callp->sy_call = (sy_call_t *) new_ptrace;
-	}
-	else {
-		old_ptrace = NULL;
-	}
-	exit_funnel_section( );
-	
-	return((uintptr_t)old_ptrace);
-}
-
-void temp_unpatch_ptrace(void)
-{
-	struct sysent *		callp;
-		
-	enter_funnel_section(kernel_flock);
-	callp = &sysent[26];
-	callp->sy_call = (sy_call_t *) ptrace;
-	exit_funnel_section( );
-	
-	return;
-}