* sysdeps/generic/bp-checks.h (CHECK_SIGSET, CHECK_SIGSETopt):

New macros. 
* sysdeps/generic/strcpy.c: Add bounds checks. 
* sysdeps/unix/fxstat.c: Likewise. 
* sysdeps/unix/xstat.c: Likewise. 
* sysdeps/unix/common/lxstat.c: Likewise. 
* sysdeps/unix/sysv/linux/aio_sigqueue.c: Likewise. 
* sysdeps/unix/sysv/linux/execve.c: Likewise. 
* sysdeps/unix/sysv/linux/fxstat.c: Likewise. 
* sysdeps/unix/sysv/linux/fxstat64.c: Likewise. 
* sysdeps/unix/sysv/linux/getcwd.c: Likewise. 
* sysdeps/unix/sysv/linux/getdents.c: Likewise. 
* sysdeps/unix/sysv/linux/llseek.c: Likewise. 
* sysdeps/unix/sysv/linux/lxstat.c: Likewise. 
* sysdeps/unix/sysv/linux/lxstat64.c: Likewise. 
* sysdeps/unix/sysv/linux/poll.c: Likewise. 
* sysdeps/unix/sysv/linux/pread.c: Likewise. 
* sysdeps/unix/sysv/linux/pread64.c: Likewise. 
* sysdeps/unix/sysv/linux/ptrace.c: Likewise. 
* sysdeps/unix/sysv/linux/pwrite.c: Likewise. 
* sysdeps/unix/sysv/linux/pwrite64.c: Likewise. 
* sysdeps/unix/sysv/linux/readv.c: Likewise. 
* sysdeps/unix/sysv/linux/sigaction.c: Likewise. 
* sysdeps/unix/sysv/linux/sigpending.c: Likewise. 
* sysdeps/unix/sysv/linux/sigprocmask.c: Likewise. 
* sysdeps/unix/sysv/linux/sigqueue.c: Likewise. 
* sysdeps/unix/sysv/linux/sigsuspend.c: Likewise. 
* sysdeps/unix/sysv/linux/sigtimedwait.c: Likewise. 
* sysdeps/unix/sysv/linux/sigwaitinfo.c: Likewise. 
* sysdeps/unix/sysv/linux/sysctl.c: Likewise. 
* sysdeps/unix/sysv/linux/truncate64.c: Likewise. 
* sysdeps/unix/sysv/linux/ustat.c: Likewise. 
* sysdeps/unix/sysv/linux/writev.c: Likewise. 
* sysdeps/unix/sysv/linux/xmknod.c: Likewise. 
* sysdeps/unix/sysv/linux/xstat.c: Likewise. 
* sysdeps/unix/sysv/linux/xstat64.c: Likewise. 
* sysdeps/unix/sysv/linux/arm/sigaction.c: Likewise. 
* sysdeps/unix/sysv/linux/i386/brk.c: Likewise. 
* sysdeps/unix/sysv/linux/i386/chown.c: Likewise. 
* sysdeps/unix/sysv/linux/i386/fxstat.c: Likewise. 
* sysdeps/unix/sysv/linux/i386/getgroups.c: Likewise. 
* sysdeps/unix/sysv/linux/i386/getresgid.c: Likewise. 
* sysdeps/unix/sysv/linux/i386/getresuid.c: Likewise. 
* sysdeps/unix/sysv/linux/i386/getrlimit.c: Likewise. 
* sysdeps/unix/sysv/linux/i386/lchown.c: Likewise. 
* sysdeps/unix/sysv/linux/i386/lxstat.c: Likewise. 
* sysdeps/unix/sysv/linux/i386/setgroups.c: Likewise. 
* sysdeps/unix/sysv/linux/i386/setrlimit.c: Likewise. 
* sysdeps/unix/sysv/linux/i386/sigaction.c: Likewise. 
* sysdeps/unix/sysv/linux/i386/xstat.c: Likewise. 
* sysdeps/unix/sysv/linux/ia64/fxstat.c: Likewise. 
* sysdeps/unix/sysv/linux/ia64/lxstat.c: Likewise. 
* sysdeps/unix/sysv/linux/ia64/sigaction.c: Likewise. 
* sysdeps/unix/sysv/linux/ia64/sigpending.c: Likewise. 
* sysdeps/unix/sysv/linux/ia64/sigprocmask.c: Likewise. 
* sysdeps/unix/sysv/linux/ia64/sigsuspend.c: Likewise. 
* sysdeps/unix/sysv/linux/ia64/xstat.c: Likewise. 
* sysdeps/unix/sysv/linux/m68k/chown.c: Likewise. 
* sysdeps/unix/sysv/linux/mips/pread.c: Likewise. 
* sysdeps/unix/sysv/linux/mips/pread64.c: Likewise. 
* sysdeps/unix/sysv/linux/mips/pwrite.c: Likewise. 
* sysdeps/unix/sysv/linux/mips/pwrite64.c: Likewise. 
* sysdeps/unix/sysv/linux/mips/truncate64.c: Likewise. 
* sysdeps/unix/sysv/linux/mips/ustat.c: Likewise. 
* sysdeps/unix/sysv/linux/mips/xmknod.c: Likewise. 
* sysdeps/unix/sysv/linux/sparc/sparc32/mmap64.c: Likewise. 
* sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c: Likewise. 
* sysdeps/unix/sysv/linux/sparc/sparc64/sigpending.c: Likewise. 
* sysdeps/unix/sysv/linux/sparc/sparc64/sigprocmask.c: Likewise. 
* sysdeps/unix/sysv/linux/sparc/sparc64/sigsuspend.c: Likewise.
	* sysdeps/generic/bp-checks.h (CHECK_SIGSET, CHECK_SIGSETopt):
	New macros.
	* sysdeps/generic/strcpy.c: Add bounds checks.
	* sysdeps/unix/fxstat.c: Likewise.
	* sysdeps/unix/xstat.c: Likewise.
	* sysdeps/unix/common/lxstat.c: Likewise.
	* sysdeps/unix/sysv/linux/aio_sigqueue.c: Likewise.
	* sysdeps/unix/sysv/linux/execve.c: Likewise.
	* sysdeps/unix/sysv/linux/fxstat.c: Likewise.
	* sysdeps/unix/sysv/linux/fxstat64.c: Likewise.
	* sysdeps/unix/sysv/linux/getcwd.c: Likewise.
	* sysdeps/unix/sysv/linux/getdents.c: Likewise.
	* sysdeps/unix/sysv/linux/llseek.c: Likewise.
	* sysdeps/unix/sysv/linux/lxstat.c: Likewise.
	* sysdeps/unix/sysv/linux/lxstat64.c: Likewise.
	* sysdeps/unix/sysv/linux/poll.c: Likewise.
	* sysdeps/unix/sysv/linux/pread.c: Likewise.
	* sysdeps/unix/sysv/linux/pread64.c: Likewise.
	* sysdeps/unix/sysv/linux/ptrace.c: Likewise.
	* sysdeps/unix/sysv/linux/pwrite.c: Likewise.
	* sysdeps/unix/sysv/linux/pwrite64.c: Likewise.
	* sysdeps/unix/sysv/linux/readv.c: Likewise.
	* sysdeps/unix/sysv/linux/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/sigpending.c: Likewise.
	* sysdeps/unix/sysv/linux/sigprocmask.c: Likewise.
	* sysdeps/unix/sysv/linux/sigqueue.c: Likewise.
	* sysdeps/unix/sysv/linux/sigsuspend.c: Likewise.
	* sysdeps/unix/sysv/linux/sigtimedwait.c: Likewise.
	* sysdeps/unix/sysv/linux/sigwaitinfo.c: Likewise.
	* sysdeps/unix/sysv/linux/sysctl.c: Likewise.
	* sysdeps/unix/sysv/linux/truncate64.c: Likewise.
	* sysdeps/unix/sysv/linux/ustat.c: Likewise.
	* sysdeps/unix/sysv/linux/writev.c: Likewise.
	* sysdeps/unix/sysv/linux/xmknod.c: Likewise.
	* sysdeps/unix/sysv/linux/xstat.c: Likewise.
	* sysdeps/unix/sysv/linux/xstat64.c: Likewise.
	* sysdeps/unix/sysv/linux/arm/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/brk.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/chown.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/fxstat.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/getgroups.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/getresgid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/getresuid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/getrlimit.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/lchown.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/lxstat.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setgroups.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setrlimit.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/xstat.c: Likewise.
	* sysdeps/unix/sysv/linux/ia64/fxstat.c: Likewise.
	* sysdeps/unix/sysv/linux/ia64/lxstat.c: Likewise.
	* sysdeps/unix/sysv/linux/ia64/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/ia64/sigpending.c: Likewise.
	* sysdeps/unix/sysv/linux/ia64/sigprocmask.c: Likewise.
	* sysdeps/unix/sysv/linux/ia64/sigsuspend.c: Likewise.
	* sysdeps/unix/sysv/linux/ia64/xstat.c: Likewise.
	* sysdeps/unix/sysv/linux/m68k/chown.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/pread.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/pread64.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/pwrite.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/pwrite64.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/truncate64.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/ustat.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/xmknod.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/mmap64.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sigpending.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sigprocmask.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sigsuspend.c: Likewise.

67 files changed, 476 insertions, 299 deletions

diff --git a/sysdeps/unix/common/lxstat.c b/sysdeps/unix/common/lxstat.c
index 378af2226f..e6ceffec53 100644
--- a/sysdeps/unix/common/lxstat.c
+++ b/sysdeps/unix/common/lxstat.c
@@ -1,5 +1,5 @@
 /* lxstat using old-style Unix lstat system call.
-   Copyright (C) 1991, 1995, 1996, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1991, 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -20,8 +20,9 @@
 #include <errno.h>
 #include <stddef.h>
 #include <sys/stat.h>
+#include <bp-checks.h>
 
-extern int __syscall_lstat (const char *, struct stat *);
+extern int __syscall_lstat (const char *__unbounded, struct stat *__unbounded);
 
 int
 __lxstat (int vers, const char *file, struct stat *buf)
@@ -32,6 +33,6 @@ __lxstat (int vers, const char *file, struct stat *buf)
       return -1;
     }
 
-  return __syscall_lstat (file, buf);
+  return __syscall_lstat (CHECK_STRING (file), CHECK_1 (buf));
 }
 weak_alias (__lxstat, _lxstat)
diff --git a/sysdeps/unix/fxstat.c b/sysdeps/unix/fxstat.c
index 7725768ed6..377d9bbdc0 100644
--- a/sysdeps/unix/fxstat.c
+++ b/sysdeps/unix/fxstat.c
@@ -1,5 +1,5 @@
 /* fxstat using old-style Unix fstat system call.
-   Copyright (C) 1991, 1995, 1996, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1991, 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -20,8 +20,9 @@
 #include <errno.h>
 #include <stddef.h>
 #include <sys/stat.h>
+#include <bp-checks.h>
 
-extern int __syscall_fstat (int, struct stat *);
+extern int __syscall_fstat (int, struct stat *__unbounded);
 
 /* Get information about the file descriptor FD in BUF.  */
 int
@@ -32,7 +33,7 @@ __fxstat (int vers, int fd, struct stat *buf)
       __set_errno (EINVAL);
       return -1;
     }
-
-  return __syscall_fstat (fd, buf);
+  
+  return __syscall_fstat (fd, CHECK_1 (buf));
 }
 weak_alias (__fxstat, _fxstat)
diff --git a/sysdeps/unix/sysv/linux/aio_sigqueue.c b/sysdeps/unix/sysv/linux/aio_sigqueue.c
index 6e53f87fb0..5683784293 100644
--- a/sysdeps/unix/sysv/linux/aio_sigqueue.c
+++ b/sysdeps/unix/sysv/linux/aio_sigqueue.c
@@ -28,7 +28,7 @@
 #include "aio_misc.h"
 
 #ifdef __NR_rt_sigqueueinfo
-extern int __syscall_rt_sigqueueinfo (int, int, siginfo_t *);
+extern int __syscall_rt_sigqueueinfo (int, int, siginfo_t *__unbounded);
 
 
 /* Return any pending signal or wait for one for the given time.  */
@@ -50,7 +50,8 @@ __aio_sigqueue (sig, val, caller_pid)
   info.si_uid = getuid ();
   info.si_value = val;
 
-  return INLINE_SYSCALL (rt_sigqueueinfo, 3, info.si_pid, sig, &info);
+  return INLINE_SYSCALL (rt_sigqueueinfo, 3, info.si_pid,
+			 sig, __ptrvalue (&info));
 }
 #else
 # include <sysdeps/generic/aio_sigqueue.c>
diff --git a/sysdeps/unix/sysv/linux/arm/sigaction.c b/sysdeps/unix/sysv/linux/arm/sigaction.c
index ae8b7f8e72..5be2fff69c 100644
--- a/sysdeps/unix/sysv/linux/arm/sigaction.c
+++ b/sysdeps/unix/sysv/linux/arm/sigaction.c
@@ -28,10 +28,10 @@
    translate it here.  */
 #include <kernel_sigaction.h>
 
-extern int __syscall_sigaction (int, const struct old_kernel_sigaction *,
-				struct old_kernel_sigaction *);
-extern int __syscall_rt_sigaction (int, const struct kernel_sigaction *,
-				   struct kernel_sigaction *, size_t);
+extern int __syscall_sigaction (int, const struct old_kernel_sigaction *__unbounded,
+				struct old_kernel_sigaction *__unbounded);
+extern int __syscall_rt_sigaction (int, const struct kernel_sigaction *__unbounded,
+				   struct kernel_sigaction *__unbounded, size_t);
 
 /* The variable is shared between all wrappers around signal handling
    functions which have RT equivalents.  */
@@ -95,8 +95,9 @@ __libc_sigaction (sig, act, oact)
 
       /* XXX The size argument hopefully will have to be changed to the
 	 real size of the user-level sigset_t.  */
-      result = INLINE_SYSCALL (rt_sigaction, 4, sig, act ? &kact : NULL,
-			       oact ? &koact : NULL, _NSIG / 8);
+      result = INLINE_SYSCALL (rt_sigaction, 4, sig,
+			       act ? __ptrvalue (&kact) : NULL,
+			       oact ? __ptrvalue (&koact) : NULL, _NSIG / 8);
 
       if (result >= 0 || errno != ENOSYS)
 	{
@@ -133,8 +134,9 @@ __libc_sigaction (sig, act, oact)
 	}
 #endif
     }
-  result = INLINE_SYSCALL (sigaction, 3, sig, act ? &k_sigact : NULL,
-			   oact ? &k_osigact : NULL);
+  result = INLINE_SYSCALL (sigaction, 3, sig,
+			   act ? __ptrvalue (&k_sigact) : NULL,
+			   oact ? __ptrvalue (&k_osigact) : NULL);
   if (oact && result >= 0)
     {
       oact->sa_handler = k_osigact.k_sa_handler;
diff --git a/sysdeps/unix/sysv/linux/execve.c b/sysdeps/unix/sysv/linux/execve.c
index 89620ede48..31277d040e 100644
--- a/sysdeps/unix/sysv/linux/execve.c
+++ b/sysdeps/unix/sysv/linux/execve.c
@@ -21,9 +21,11 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
-extern int __syscall_execve (const char *file, char *const argv[],
-			     char *const envp[]);
+extern int __syscall_execve (const char *__unbounded file,
+			     char *__unbounded const *__unbounded argv,
+			     char *__unbounded const *__unbounded envp);
 extern void __pthread_kill_other_threads_np (void);
 weak_extern (__pthread_kill_other_threads_np)
 
@@ -37,7 +39,32 @@ __execve (file, argv, envp)
   /* If this is a threaded application kill all other threads.  */
   if (__pthread_kill_other_threads_np)
     __pthread_kill_other_threads_np ();
+#if __BOUNDED_POINTERS__
+  {
+    char **v;
+    int i;
+    char *__unbounded *__unbounded ubp_argv;
+    char *__unbounded *__unbounded ubp_envp;
+    char *__unbounded *__unbounded ubp_v;
 
+    for (v = argv; *v; v++)
+      ;
+    i = v - argv + 1;
+    ubp_argv = (char *__unbounded *__unbounded) alloca (sizeof (*ubp_argv) * i);
+    for (v = argv, ubp_v = ubp_argv; i--; v++, ubp_v++)
+      *ubp_v = CHECK_STRING (*v);
+
+    for (v = envp; *v; v++)
+      ;
+    i = v - envp + 1;
+    ubp_envp = (char *__unbounded *__unbounded) alloca (sizeof (*ubp_envp) * i);
+    for (v = envp, ubp_v = ubp_envp; i--; v++, ubp_v++)
+      *ubp_v = CHECK_STRING (*v);
+
+    return INLINE_SYSCALL (execve, 3, CHECK_STRING (file), ubp_argv, ubp_envp);
+  }
+#else
   return INLINE_SYSCALL (execve, 3, file, argv, envp);
+#endif
 }
 weak_alias (__execve, execve)
diff --git a/sysdeps/unix/sysv/linux/fxstat.c b/sysdeps/unix/sysv/linux/fxstat.c
index 99074f9d77..a80621f928 100644
--- a/sysdeps/unix/sysv/linux/fxstat.c
+++ b/sysdeps/unix/sysv/linux/fxstat.c
@@ -1,5 +1,5 @@
 /* fxstat using old-style Unix fstat system call.
-   Copyright (C) 1991, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1991, 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -28,10 +28,11 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include <xstatconv.c>
 
-extern int __syscall_fstat (int, struct kernel_stat *);
+extern int __syscall_fstat (int, struct kernel_stat *__unbounded);
 
 /* Get information about the file FD in BUF.  */
 int
@@ -41,11 +42,9 @@ __fxstat (int vers, int fd, struct stat *buf)
   int result;
 
   if (vers == _STAT_VER_KERNEL)
-    {
-      return INLINE_SYSCALL (fstat, 2, fd, (struct kernel_stat *) buf);
-    }
+    return INLINE_SYSCALL (fstat, 2, fd, CHECK_1 ((struct kernel_stat *) buf));
 
-  result = INLINE_SYSCALL (fstat, 2, fd, &kbuf);
+  result = INLINE_SYSCALL (fstat, 2, fd, __ptrvalue (&kbuf));
   if (result == 0)
     result = xstat_conv (vers, &kbuf, buf);
 
diff --git a/sysdeps/unix/sysv/linux/fxstat64.c b/sysdeps/unix/sysv/linux/fxstat64.c
index 173181816a..3cd21d4fc4 100644
--- a/sysdeps/unix/sysv/linux/fxstat64.c
+++ b/sysdeps/unix/sysv/linux/fxstat64.c
@@ -1,5 +1,5 @@
 /* fxstat64 using old-style Unix fstat system call.
-   Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -24,16 +24,18 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
+
 #include "kernel-features.h"
 
 #if __ASSUME_STAT64_SYSCALL == 0
 # include <xstatconv.c>
 #endif
 
-extern int __syscall_fstat (int, struct kernel_stat *);
+extern int __syscall_fstat (int, struct kernel_stat *__unbounded);
 
 #ifdef __NR_fstat64
-extern int __syscall_fstat64 (int, struct stat64 *);
+extern int __syscall_fstat64 (int, struct stat64 *__unbounded);
 # if  __ASSUME_STAT64_SYSCALL == 0
 /* The variable is shared between all wrappers around *stat64 calls.  */
 extern int __have_no_stat64;
@@ -45,7 +47,7 @@ int
 __fxstat64 (int vers, int fd, struct stat64 *buf)
 {
 #if __ASSUME_STAT64_SYSCALL > 0
-  return INLINE_SYSCALL (fstat64, 2, fd, buf);
+  return INLINE_SYSCALL (fstat64, 2, fd, CHECK_1 (buf));
 #else
   int result;
   struct kernel_stat kbuf;
@@ -53,7 +55,7 @@ __fxstat64 (int vers, int fd, struct stat64 *buf)
   if (! __have_no_stat64)
     {
       int saved_errno = errno;
-      result = INLINE_SYSCALL (fstat64, 2, fd, buf);
+      result = INLINE_SYSCALL (fstat64, 2, fd, CHECK_1 (buf));
 
       if (result != -1 || errno != ENOSYS)
 	return result;
@@ -62,7 +64,7 @@ __fxstat64 (int vers, int fd, struct stat64 *buf)
       __have_no_stat64 = 1;
     }
 # endif
-  result = INLINE_SYSCALL (fstat, 2, fd, &kbuf);
+  result = INLINE_SYSCALL (fstat, 2, fd, __ptrvalue (&kbuf));
   if (result == 0)
     result = xstat64_conv (vers, &kbuf, buf);
 
diff --git a/sysdeps/unix/sysv/linux/getcwd.c b/sysdeps/unix/sysv/linux/getcwd.c
index cc7b987f9b..6c68955fdb 100644
--- a/sysdeps/unix/sysv/linux/getcwd.c
+++ b/sysdeps/unix/sysv/linux/getcwd.c
@@ -1,5 +1,5 @@
 /* Determine current working directory.  Linux version.
-   Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -26,6 +26,7 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include "kernel-features.h"
 
@@ -34,7 +35,7 @@
 /* Kernel 2.1.92 introduced a third way to get the current working
    directory: a syscall.  We've got to be careful that even when
    compiling under 2.1.92+ the libc still runs under older kernels. */
-extern int __syscall_getcwd (char *buf, unsigned long size);
+extern int __syscall_getcwd (char *__unbounded buf, unsigned long size);
 # define no_syscall_getcwd 0
 # define have_new_dcache 1
 /* This is a trick since we don't define generic_getcwd.  */
@@ -51,7 +52,7 @@ static char *generic_getcwd (char *buf, size_t size) internal_function;
 /* Kernel 2.1.92 introduced a third way to get the current working
    directory: a syscall.  We've got to be careful that even when
    compiling under 2.1.92+ the libc still runs under older kernels. */
-extern int __syscall_getcwd (char *buf, unsigned long size);
+extern int __syscall_getcwd (char *__unbounded buf, unsigned long size);
 static int no_syscall_getcwd;
 static int have_new_dcache;
 # else
@@ -99,7 +100,7 @@ __getcwd (char *buf, size_t size)
     {
       int retval;
 
-      retval = INLINE_SYSCALL (getcwd, 2, path, alloc_size);
+      retval = INLINE_SYSCALL (getcwd, 2, CHECK_STRING (path), alloc_size);
       if (retval >= 0)
 	{
 	  if (buf == NULL)
diff --git a/sysdeps/unix/sysv/linux/getdents.c b/sysdeps/unix/sysv/linux/getdents.c
index 5f1e7c1b30..0f16683eed 100644
--- a/sysdeps/unix/sysv/linux/getdents.c
+++ b/sysdeps/unix/sysv/linux/getdents.c
@@ -28,13 +28,13 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include <linux/posix_types.h>
 
 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
 
-
-extern int __syscall_getdents (int fd, char *buf, size_t nbytes);
+extern int __syscall_getdents (int fd, char *__unbounded buf, size_t nbytes);
 
 /* For Linux we need a special version of this file since the
    definition of `struct dirent' is not the same for the kernel and
@@ -84,7 +84,8 @@ __getdents (int fd, char *buf, size_t nbytes)
   dp = (struct dirent *) buf;
   skdp = kdp = __alloca (red_nbytes);
 
-  retval = INLINE_SYSCALL (getdents, 3, fd, (char *) kdp, red_nbytes);
+  retval = INLINE_SYSCALL (getdents, 3, fd,
+			   CHECK_N ((char *) kdp, red_nbytes), red_nbytes);
 
   if (retval == -1)
     return -1;
diff --git a/sysdeps/unix/sysv/linux/i386/brk.c b/sysdeps/unix/sysv/linux/i386/brk.c
index 5bb9d59d5c..e528b9bf39 100644
--- a/sysdeps/unix/sysv/linux/i386/brk.c
+++ b/sysdeps/unix/sysv/linux/i386/brk.c
@@ -1,5 +1,5 @@
 /* brk system call for Linux/i386.
-   Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+   Copyright (C) 1995, 1996, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -21,6 +21,8 @@
 #include <unistd.h>
 #include <sysdep.h>
 
+#include <bp-checks.h>
+
 /* This must be initialized data because commons can't have aliases.  */
 void *__curbrk = 0;
 
@@ -32,14 +34,14 @@ weak_alias (__curbrk, ___brk_addr)
 int
 __brk (void *addr)
 {
-  void *newbrk, *scratch;
+  void *__unbounded newbrk, *__unbounded scratch;
 
   asm ("movl %%ebx, %1\n"	/* Save %ebx in scratch register.  */
        "movl %3, %%ebx\n"	/* Put ADDR in %ebx to be syscall arg.  */
        "int $0x80 # %2\n"	/* Perform the system call.  */
        "movl %1, %%ebx\n"	/* Restore %ebx from scratch register.  */
        : "=a" (newbrk), "=r" (scratch)
-       : "0" (SYS_ify (brk)), "g" (addr));
+       : "0" (SYS_ify (brk)), "g" (__ptrvalue (addr)));
 
   __curbrk = newbrk;
 
diff --git a/sysdeps/unix/sysv/linux/i386/chown.c b/sysdeps/unix/sysv/linux/i386/chown.c
index 1dce31495b..ce44338d5e 100644
--- a/sysdeps/unix/sysv/linux/i386/chown.c
+++ b/sysdeps/unix/sysv/linux/i386/chown.c
@@ -21,11 +21,11 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
-
-#include <kernel-features.h>
-#include <linux/posix_types.h>
 #include <shlib-compat.h>
+#include <bp-checks.h>
 
+#include <linux/posix_types.h>
+#include "kernel-features.h"
 
 /*
   In Linux 2.1.x the chown functions have been changed.  A new function lchown
@@ -68,7 +68,7 @@ __real_chown (const char *file, uid_t owner, gid_t group)
 	  int result;
 	  int saved_errno = errno;
 
-	  result = INLINE_SYSCALL (chown32, 3, file, owner, group);
+	  result = INLINE_SYSCALL (chown32, 3, CHECK_STRING (file), owner, group);
 	  if (result == 0 || errno != ENOSYS)
 	    return result;
 
@@ -83,7 +83,7 @@ __real_chown (const char *file, uid_t owner, gid_t group)
 	  return -1;
 	}
 
-      result = INLINE_SYSCALL (chown, 3, file, owner, group);
+      result = INLINE_SYSCALL (chown, 3, CHECK_STRING (file), owner, group);
 
       if (result >= 0 || errno != ENOSYS)
 	return result;
@@ -95,7 +95,7 @@ __real_chown (const char *file, uid_t owner, gid_t group)
   return __lchown (file, owner, group);
 # elif __ASSUME_32BITUIDS
   /* This implies __ASSUME_LCHOWN_SYSCALL.  */
-  return INLINE_SYSCALL (chown32, 3, file, owner, group);
+  return INLINE_SYSCALL (chown32, 3, CHECK_STRING (file), owner, group);
 # else
   /* !__ASSUME_32BITUIDS && ASSUME_LCHOWN_SYSCALL  */
 #  ifdef __NR_chown32
@@ -104,7 +104,7 @@ __real_chown (const char *file, uid_t owner, gid_t group)
       int result;
       int saved_errno = errno;
 
-      result = INLINE_SYSCALL (chown32, 3, file, owner, group);
+      result = INLINE_SYSCALL (chown32, 3, CHECK_STRING (file), owner, group);
       if (result == 0 || errno != ENOSYS)
 	return result;
 
@@ -119,7 +119,7 @@ __real_chown (const char *file, uid_t owner, gid_t group)
       return -1;
     }
 
-  return INLINE_SYSCALL (chown, 3, file, owner, group);
+  return INLINE_SYSCALL (chown, 3, CHECK_STRING (file), owner, group);
 # endif
 }
 #endif
@@ -130,7 +130,7 @@ __real_chown (const char *file, uid_t owner, gid_t group)
 int
 __chown_is_lchown (const char *file, uid_t owner, gid_t group)
 {
-  return INLINE_SYSCALL (chown, 3, file, owner, group);
+  return INLINE_SYSCALL (chown, 3, CHECK_STRING (file), owner, group);
 }
 #elif SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)
 /* Compiling for compatibiity.  */
diff --git a/sysdeps/unix/sysv/linux/i386/fxstat.c b/sysdeps/unix/sysv/linux/i386/fxstat.c
index c4e24cf1e0..e88570c6cf 100644
--- a/sysdeps/unix/sysv/linux/i386/fxstat.c
+++ b/sysdeps/unix/sysv/linux/i386/fxstat.c
@@ -28,14 +28,16 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
+
 #include "kernel-features.h"
 
 #include <xstatconv.c>
 
-extern int __syscall_fstat (int, struct kernel_stat *);
+extern int __syscall_fstat (int, struct kernel_stat *__unbounded);
 
 #ifdef __NR_stat64
-extern int __syscall_fstat64 (int, struct stat64 *);
+extern int __syscall_fstat64 (int, struct stat64 *__unbounded);
 # if  __ASSUME_STAT64_SYSCALL == 0
 /* The variable is shared between all wrappers around *stat64 calls.  */
 extern int __have_no_stat64;
@@ -52,14 +54,13 @@ __fxstat (int vers, int fd, struct stat *buf)
   int result;
 
   if (vers == _STAT_VER_KERNEL)
-    {
-      return INLINE_SYSCALL (fstat, 2, fd, (struct kernel_stat *) buf);
-    }
+    return INLINE_SYSCALL (fstat, 2, fd, CHECK_1 ((struct kernel_stat *) buf));
+
 #if __ASSUME_STAT64_SYSCALL > 0
   {
     struct stat64 buf64;
 
-    result = INLINE_SYSCALL (fstat64, 2, fd, &buf64);
+    result = INLINE_SYSCALL (fstat64, 2, fd, __ptrvalue (&buf64));
     if (result == 0)
       result = xstat32_conv (vers, &buf64, buf);
     return result;
@@ -73,19 +74,19 @@ __fxstat (int vers, int fd, struct stat *buf)
     {
       struct stat64 buf64;
 
-      result = INLINE_SYSCALL (fstat64, 2, fd, &buf64);
+      result = INLINE_SYSCALL (fstat64, 2, fd, __ptrvalue (&buf64));
 
       if (result == 0)
 	result = xstat32_conv (vers, &buf64, buf);
-      
+
       if (result != -1 || errno != ENOSYS)
 	return result;
 
       __have_no_stat64 = 1;
     }
-# endif  
+# endif
 
-  result = INLINE_SYSCALL (fstat, 2, fd, &kbuf);
+  result = INLINE_SYSCALL (fstat, 2, fd, __ptrvalue (&kbuf));
   if (result == 0)
     result = xstat_conv (vers, &kbuf, buf);
 
diff --git a/sysdeps/unix/sysv/linux/i386/getgroups.c b/sysdeps/unix/sysv/linux/i386/getgroups.c
index 071be4f4b7..2efe341e0d 100644
--- a/sysdeps/unix/sysv/linux/i386/getgroups.c
+++ b/sysdeps/unix/sysv/linux/i386/getgroups.c
@@ -23,14 +23,16 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
+
 #include <linux/posix_types.h>
 #include <kernel-features.h>
 
 
-extern int __syscall_getgroups(int, __kernel_gid_t *);
+extern int __syscall_getgroups (int, __kernel_gid_t *__unbounded);
 
 #ifdef __NR_getgroups32
-extern int __syscall_getgroups32 (int, __kernel_gid32_t *);
+extern int __syscall_getgroups32 (int, __kernel_gid32_t *__unbounded);
 # if __ASSUME_32BITUIDS == 0
 /* This variable is shared with all files that need to check for 32bit
    uids.  */
@@ -51,7 +53,7 @@ __getgroups (int n, gid_t *groups)
   else
     {
 #if __ASSUME_32BITUIDS > 0
-      return INLINE_SYSCALL (getgroups32, 2, n, groups);
+      return INLINE_SYSCALL (getgroups32, 2, n, CHECK_N (groups, n));
 #else
       int i, ngids;
       __kernel_gid_t kernel_groups[n = MIN (n, __sysconf (_SC_NGROUPS_MAX))];
@@ -61,7 +63,7 @@ __getgroups (int n, gid_t *groups)
 	  int result;
 	  int saved_errno = errno;
 
-	  result = INLINE_SYSCALL (getgroups32, 2, n, groups);
+	  result = INLINE_SYSCALL (getgroups32, 2, n, CHECK_N (groups, n));
 	  if (result == 0 || errno != ENOSYS)
 	    return result;
 
@@ -70,11 +72,10 @@ __getgroups (int n, gid_t *groups)
 	}
 # endif /* __NR_getgroups32 */
 
-      ngids = INLINE_SYSCALL (getgroups, 2, n, kernel_groups);
+      ngids = INLINE_SYSCALL (getgroups, 2, n, CHECK_N (kernel_groups, n));
       if (n != 0 && ngids > 0)
 	for (i = 0; i < ngids; i++)
-	  groups[i] = kernel_groups[i];
-
+	  (__ptrvalue (groups))[i] = kernel_groups[i];
       return ngids;
 #endif
     }
diff --git a/sysdeps/unix/sysv/linux/i386/getresgid.c b/sysdeps/unix/sysv/linux/i386/getresgid.c
index f4bd14da22..da07372595 100644
--- a/sysdeps/unix/sysv/linux/i386/getresgid.c
+++ b/sysdeps/unix/sysv/linux/i386/getresgid.c
@@ -24,16 +24,20 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
+
 #include "kernel-features.h"
 
 #ifdef __NR_getresgid
 
-extern int __syscall_getresgid (__kernel_gid_t *rgid, __kernel_gid_t *egid,
-				__kernel_gid_t *sgid);
+extern int __syscall_getresgid (__kernel_gid_t *__unbounded rgid,
+				__kernel_gid_t *__unbounded egid,
+				__kernel_gid_t *__unbounded sgid);
 
 # ifdef __NR_getresgid32
-extern int __syscall_getresgid32 (__kernel_gid32_t *rgid, __kernel_gid32_t *egid,
-				  __kernel_gid32_t *sgid);
+extern int __syscall_getresgid32 (__kernel_gid32_t *__unbounded rgid,
+				  __kernel_gid32_t *__unbounded egid,
+				  __kernel_gid32_t *__unbounded sgid);
 
 #  if __ASSUME_32BITUIDS == 0
 /* This variable is shared with all files that need to check for 32bit
@@ -47,8 +51,9 @@ int
 getresgid (gid_t *rgid, gid_t *egid, gid_t *sgid)
 {
 # if __ASSUME_32BITUIDS > 0
-  return INLINE_SYSCALL (getresgid32, 3, rgid, egid, sgid);
-# else  
+  return INLINE_SYSCALL (getresgid32, 3, CHECK_1 (rgid),
+			 CHECK_1 (egid), CHECK_1 (sgid));
+# else
   __kernel_gid_t k_rgid, k_egid, k_sgid;
   int result;
 #  ifdef __NR_getresgid32
@@ -57,7 +62,8 @@ getresgid (gid_t *rgid, gid_t *egid, gid_t *sgid)
       int r;
       int saved_errno = errno;
 
-      r = INLINE_SYSCALL (getresgid32, 3, rgid, egid, sgid);
+      r = INLINE_SYSCALL (getresgid32, 3, CHECK_1 (rgid),
+			  CHECK_1 (egid), CHECK_1 (sgid));
       if (r == 0 || errno != ENOSYS)
 	return r;
 
@@ -66,7 +72,8 @@ getresgid (gid_t *rgid, gid_t *egid, gid_t *sgid)
     }
 #  endif /* __NR_getresgid32 */
 
-  result = INLINE_SYSCALL (getresgid, 3, &k_rgid, &k_egid, &k_sgid);
+  result = INLINE_SYSCALL (getresgid, 3, __ptrvalue (&k_rgid),
+			   __ptrvalue (&k_egid), __ptrvalue (&k_sgid));
 
   if (result == 0)
     {
diff --git a/sysdeps/unix/sysv/linux/i386/getresuid.c b/sysdeps/unix/sysv/linux/i386/getresuid.c
index 27eca40745..0f9c0640df 100644
--- a/sysdeps/unix/sysv/linux/i386/getresuid.c
+++ b/sysdeps/unix/sysv/linux/i386/getresuid.c
@@ -24,17 +24,20 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include "kernel-features.h"
 
 #ifdef __NR_getresuid
 
-extern int __syscall_getresuid (__kernel_uid_t *ruid, __kernel_uid_t *euid,
-				__kernel_uid_t *suid);
+extern int __syscall_getresuid (__kernel_uid_t *__unbounded ruid,
+				__kernel_uid_t *__unbounded euid,
+				__kernel_uid_t *__unbounded suid);
 
 # ifdef __NR_getresuid32
-extern int __syscall_getresuid32 (__kernel_uid32_t *ruid, __kernel_uid32_t *euid,
-				  __kernel_uid32_t *suid);
+extern int __syscall_getresuid32 (__kernel_uid32_t *__unbounded ruid,
+				  __kernel_uid32_t *__unbounded euid,
+				  __kernel_uid32_t *__unbounded suid);
 #  if __ASSUME_32BITUIDS == 0
 /* This variable is shared with all files that need to check for 32bit
    uids.  */
@@ -46,7 +49,8 @@ int
 getresuid (uid_t *ruid, uid_t *euid, uid_t *suid)
 {
 # if __ASSUME_32BITUIDS > 0
-  return INLINE_SYSCALL (getresuid32, 3, ruid, euid, suid);
+  return INLINE_SYSCALL (getresuid32, 3, CHECK_1 (ruid),
+			 CHECK_1 (euid), CHECK_1 (suid));
 # else
   __kernel_uid_t k_ruid, k_euid, k_suid;
   int result;
@@ -56,7 +60,8 @@ getresuid (uid_t *ruid, uid_t *euid, uid_t *suid)
       int r;
       int saved_errno = errno;
 
-      r = INLINE_SYSCALL (getresuid32, 3, ruid, euid, suid);
+      r = INLINE_SYSCALL (getresuid32, 3, CHECK_1 (ruid),
+			  CHECK_1 (euid), CHECK_1 (suid));
       if (r == 0 || errno != ENOSYS)
 	return r;
 
@@ -65,7 +70,8 @@ getresuid (uid_t *ruid, uid_t *euid, uid_t *suid)
     }
 #  endif /* __NR_getresuid32 */
 
-  result = INLINE_SYSCALL (getresuid, 3, &k_ruid, &k_euid, &k_suid);
+  result = INLINE_SYSCALL (getresuid, 3, __ptrvalue (&k_ruid),
+			   __ptrvalue (&k_euid), __ptrvalue (&k_suid));
 
   if (result == 0)
     {
diff --git a/sysdeps/unix/sysv/linux/i386/getrlimit.c b/sysdeps/unix/sysv/linux/i386/getrlimit.c
index c1af81b312..33d011a72c 100644
--- a/sysdeps/unix/sysv/linux/i386/getrlimit.c
+++ b/sysdeps/unix/sysv/linux/i386/getrlimit.c
@@ -22,11 +22,14 @@
 #include <sysdep.h>
 #include <sys/syscall.h>
 #include <shlib-compat.h>
+#include <bp-checks.h>
+
 #include "kernel-features.h"
 
 extern int __syscall_ugetrlimit (unsigned int resource,
-				 struct rlimit *rlimits);
-extern int __syscall_getrlimit (unsigned int resource, struct rlimit *rlimits);
+				 struct rlimit *__unbounded rlimits);
+extern int __syscall_getrlimit (unsigned int resource,
+				struct rlimit *__unbounded rlimits);
 
 /* Linux 2.3.25 introduced a new system call since the types used for
    the limits are now unsigned.  */
@@ -38,14 +41,14 @@ int
 __new_getrlimit (enum __rlimit_resource resource, struct rlimit *rlimits)
 {
 #ifdef __ASSUME_NEW_GETRLIMIT_SYSCALL
-  return INLINE_SYSCALL (ugetrlimit, 2, resource, rlimits);
+  return INLINE_SYSCALL (ugetrlimit, 2, resource, CHECK_1 (rlimits));
 #else
   int result;
 
 # ifdef __NR_ugetrlimit
   if (__have_no_new_getrlimit <= 0)
     {
-      result = INLINE_SYSCALL (ugetrlimit, 2, resource, rlimits);
+      result = INLINE_SYSCALL (ugetrlimit, 2, resource, CHECK_1 (rlimits));
 
       /* If the system call is available remember this fact and return.  */
       if (result != -1 || errno != ENOSYS)
@@ -60,7 +63,7 @@ __new_getrlimit (enum __rlimit_resource resource, struct rlimit *rlimits)
 # endif
 
   /* Fall back to the old system call.  */
-  result = INLINE_SYSCALL (getrlimit, 2, resource, rlimits);
+  result = INLINE_SYSCALL (getrlimit, 2, resource, CHECK_1 (rlimits));
 
   if (result == -1)
     return result;
diff --git a/sysdeps/unix/sysv/linux/i386/lchown.c b/sysdeps/unix/sysv/linux/i386/lchown.c
index 6e2bb9d0b9..848978e982 100644
--- a/sysdeps/unix/sysv/linux/i386/lchown.c
+++ b/sysdeps/unix/sysv/linux/i386/lchown.c
@@ -21,16 +21,17 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include <linux/posix_types.h>
 #include "kernel-features.h"
 
 #ifdef __NR_lchown
-extern int __syscall_lchown (const char *__file,
+extern int __syscall_lchown (const char *__unbounded __file,
 			     __kernel_uid_t __owner, __kernel_gid_t __group);
 
 # ifdef __NR_lchown32
-extern int __syscall_lchown32 (const char *__file,
+extern int __syscall_lchown32 (const char *__unbounded __file,
 			       __kernel_uid32_t __owner, __kernel_gid32_t __group);
 #  if __ASSUME_32BITUIDS == 0
 /* This variable is shared with all files that need to check for 32bit
@@ -43,7 +44,7 @@ int
 __lchown (const char *file, uid_t owner, gid_t group)
 {
 # if __ASSUME_32BITUIDS > 0
-  return INLINE_SYSCALL (lchown32, 3, file, owner, group);
+  return INLINE_SYSCALL (lchown32, 3, CHECK_STRING (file), owner, group);
 # else
 #  ifdef __NR_lchown32
   if (__libc_missing_32bit_uids <= 0)
@@ -51,7 +52,7 @@ __lchown (const char *file, uid_t owner, gid_t group)
       int result;
       int saved_errno = errno;
 
-      result = INLINE_SYSCALL (lchown32, 3, file, owner, group);
+      result = INLINE_SYSCALL (lchown32, 3, CHECK_STRING (file), owner, group);
       if (result == 0 || errno != ENOSYS)
 	return result;
 
@@ -67,7 +68,7 @@ __lchown (const char *file, uid_t owner, gid_t group)
       return -1;
     }
 
-  return INLINE_SYSCALL (lchown, 3, file, owner, group);
+  return INLINE_SYSCALL (lchown, 3, CHECK_STRING (file), owner, group);
 # endif
 }
 
diff --git a/sysdeps/unix/sysv/linux/i386/lxstat.c b/sysdeps/unix/sysv/linux/i386/lxstat.c
index ee89ec125a..e42dcfe759 100644
--- a/sysdeps/unix/sysv/linux/i386/lxstat.c
+++ b/sysdeps/unix/sysv/linux/i386/lxstat.c
@@ -28,14 +28,18 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
+
 #include "kernel-features.h"
 
 #include <xstatconv.c>
 
-extern int __syscall_lstat (const char *, struct kernel_stat *);
+extern int __syscall_lstat (const char *__unbounded,
+			    struct kernel_stat *__unbounded);
 
 #ifdef __NR_stat64
-extern int __syscall_lstat64 (const char *, struct stat64 *);
+extern int __syscall_lstat64 (const char *__unbounded,
+			      struct stat64 *__unbounded);
 # if  __ASSUME_STAT64_SYSCALL == 0
 /* The variable is shared between all wrappers around *stat64 calls.  */
 extern int __have_no_stat64;
@@ -53,15 +57,13 @@ __lxstat (int vers, const char *name, struct stat *buf)
   int result;
 
   if (vers == _STAT_VER_KERNEL)
-    {
-      return INLINE_SYSCALL (lstat, 2, name, (struct kernel_stat *) buf);
-    }
+    return INLINE_SYSCALL (lstat, 2, CHECK_STRING (name), CHECK_1 ((struct kernel_stat *) buf));
 
 #if __ASSUME_STAT64_SYSCALL > 0
   {
     struct stat64 buf64;
 
-    result = INLINE_SYSCALL (lstat64, 2, name, &buf64);
+    result = INLINE_SYSCALL (lstat64, 2, CHECK_STRING (name), __ptrvalue (&buf64));
     if (result == 0)
       result = xstat32_conv (vers, &buf64, buf);
     return result;
@@ -74,7 +76,7 @@ __lxstat (int vers, const char *name, struct stat *buf)
   if (! __have_no_stat64)
     {
       struct stat64 buf64;
-      result = INLINE_SYSCALL (lstat64, 2, name, &buf64);
+      result = INLINE_SYSCALL (lstat64, 2, CHECK_STRING (name), __ptrvalue (&buf64));
 
       if (result == 0)
 	result = xstat32_conv (vers, &buf64, buf);
@@ -84,9 +86,9 @@ __lxstat (int vers, const char *name, struct stat *buf)
 
       __have_no_stat64 = 1;
     }
-# endif  
-  
-  result = INLINE_SYSCALL (lstat, 2, name, &kbuf);
+# endif
+
+  result = INLINE_SYSCALL (lstat, 2, CHECK_STRING (name), __ptrvalue (&kbuf));
   if (result == 0)
     result = xstat_conv (vers, &kbuf, buf);
 
diff --git a/sysdeps/unix/sysv/linux/i386/setgroups.c b/sysdeps/unix/sysv/linux/i386/setgroups.c
index 5e73352a1a..a2553b6a25 100644
--- a/sysdeps/unix/sysv/linux/i386/setgroups.c
+++ b/sysdeps/unix/sysv/linux/i386/setgroups.c
@@ -23,14 +23,16 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
+
 #include <linux/posix_types.h>
 #include "kernel-features.h"
 
 
-extern int __syscall_setgroups (int, const __kernel_gid_t *);
+extern int __syscall_setgroups (int, const __kernel_gid_t *__unbounded);
 
 #ifdef __NR_setgroups32
-extern int __syscall_setgroups32 (int, const __kernel_gid32_t *);
+extern int __syscall_setgroups32 (int, const __kernel_gid32_t *__unbounded);
 # if __ASSUME_32BITUIDS == 0
 /* This variable is shared with all files that need to check for 32bit
    uids.  */
@@ -52,17 +54,18 @@ setgroups (size_t n, const gid_t *groups)
   else
     {
 #if __ASSUME_32BITUIDS > 0
-      return INLINE_SYSCALL (setgroups32, 2, n, groups);
+      return INLINE_SYSCALL (setgroups32, 2, n, CHECK_N (groups, n));
 #else
       size_t i;
       __kernel_gid_t kernel_groups[n];
+
 # ifdef __NR_setgroups32
       if (__libc_missing_32bit_uids <= 0)
 	{
 	  int result;
 	  int saved_errno = errno;
 
-	  result = INLINE_SYSCALL (setgroups32, 2, n, groups);
+	  result = INLINE_SYSCALL (setgroups32, 2, n, CHECK_N (groups, n));
 	  if (result == 0 || errno != ENOSYS)
 	    return result;
 
@@ -72,7 +75,7 @@ setgroups (size_t n, const gid_t *groups)
 # endif /* __NR_setgroups32 */
       for (i = 0; i < n; i++)
 	{
-	  kernel_groups[i] = groups[i];
+	  kernel_groups[i] = (__ptrvalue (groups))[i];
 	  if (groups[i] != (gid_t) ((__kernel_gid_t) groups[i]))
 	    {
 	      __set_errno (EINVAL);
@@ -80,7 +83,7 @@ setgroups (size_t n, const gid_t *groups)
 	    }
 	}
 
-      return INLINE_SYSCALL (setgroups, 2, n, kernel_groups);
+      return INLINE_SYSCALL (setgroups, 2, n, CHECK_N (kernel_groups, n));
 #endif
     }
 }
diff --git a/sysdeps/unix/sysv/linux/i386/setrlimit.c b/sysdeps/unix/sysv/linux/i386/setrlimit.c
index 5ceae60eb1..04b55d1d1c 100644
--- a/sysdeps/unix/sysv/linux/i386/setrlimit.c
+++ b/sysdeps/unix/sysv/linux/i386/setrlimit.c
@@ -22,14 +22,15 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <shlib-compat.h>
+#include <bp-checks.h>
 
 #include "kernel-features.h"
-#include <shlib-compat.h>
 
 extern int __syscall_setrlimit (unsigned int resource,
-				const struct rlimit *rlimits);
+				const struct rlimit *__unbounded rlimits);
 extern int __syscall_ugetrlimit (unsigned int resource,
-				 const struct rlimit *rlimits);
+				 const struct rlimit *__unbounded rlimits);
 
 /* Linux 2.3.25 introduced a new system call since the types used for
    the limits are now unsigned.  */
@@ -41,7 +42,7 @@ int
 __new_setrlimit (enum __rlimit_resource resource, const struct rlimit *rlimits)
 {
 #ifdef __ASSUME_NEW_GETRLIMIT_SYSCALL
-  return INLINE_SYSCALL (setrlimit, 2, resource, rlimits);
+  return INLINE_SYSCALL (setrlimit, 2, resource, CHECK_1 (rlimits));
 #else
   struct rlimit rlimits_small;
 
@@ -51,7 +52,7 @@ __new_setrlimit (enum __rlimit_resource resource, const struct rlimit *rlimits)
       /* Check if the new ugetrlimit syscall exists.  We must do this
 	 first because older kernels don't reject negative rlimit
 	 values in setrlimit.  */
-      int result = INLINE_SYSCALL (ugetrlimit, 2, resource, &rlimits_small);
+      int result = INLINE_SYSCALL (ugetrlimit, 2, resource, __ptrvalue (&rlimits_small));
       if (result != -1 || errno != ENOSYS)
 	/* The syscall exists.  */
 	__have_no_new_getrlimit = -1;
@@ -60,7 +61,7 @@ __new_setrlimit (enum __rlimit_resource resource, const struct rlimit *rlimits)
 	__have_no_new_getrlimit = 1;
     }
   if (__have_no_new_getrlimit < 0)
-    return INLINE_SYSCALL (setrlimit, 2, resource, rlimits);
+    return INLINE_SYSCALL (setrlimit, 2, resource, CHECK_1 (rlimits));
 # endif
 
   /* We might have to correct the limits values.  Since the old values
@@ -71,7 +72,7 @@ __new_setrlimit (enum __rlimit_resource resource, const struct rlimit *rlimits)
 				RLIM_INFINITY >> 1);
 
   /* Use the adjusted values.  */
-  return INLINE_SYSCALL (setrlimit, 2, resource, &rlimits_small);
+  return INLINE_SYSCALL (setrlimit, 2, resource, __ptrvalue (&rlimits_small));
 #endif
 }
 
diff --git a/sysdeps/unix/sysv/linux/i386/sigaction.c b/sysdeps/unix/sysv/linux/i386/sigaction.c
index c7493de6bb..faa9afaddd 100644
--- a/sysdeps/unix/sysv/linux/i386/sigaction.c
+++ b/sysdeps/unix/sysv/linux/i386/sigaction.c
@@ -37,8 +37,8 @@
 #define SA_RESTORER 0x04000000
 
 
-extern int __syscall_rt_sigaction (int, const struct kernel_sigaction *,
-				   struct kernel_sigaction *, size_t);
+extern int __syscall_rt_sigaction (int, const struct kernel_sigaction *__unbounded,
+				   struct kernel_sigaction *__unbounded, size_t);
 
 #if __ASSUME_REALTIME_SIGNALS == 0
 /* The variable is shared between all wrappers around signal handling
@@ -86,8 +86,9 @@ __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
 
       /* XXX The size argument hopefully will have to be changed to the
 	 real size of the user-level sigset_t.  */
-      result = INLINE_SYSCALL (rt_sigaction, 4, sig, act ? &kact : NULL,
-			       oact ? &koact : NULL, _NSIG / 8);
+      result = INLINE_SYSCALL (rt_sigaction, 4,
+			       sig, act ? __ptrvalue (&kact) : NULL,
+			       oact ? __ptrvalue (&koact) : NULL, _NSIG / 8);
 
 # if __ASSUME_REALTIME_SIGNALS == 0
       if (result >= 0 || errno != ENOSYS)
@@ -126,7 +127,8 @@ __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
 		"popl %%ebx"
 		: "=a" (result)
 		: "0" (SYS_ify (sigaction)), "r" (sig),
-		  "c" (act ? &k_newact : 0), "d" (oact ? &k_oldact : 0));
+		  "c" (act ? __ptrvalue (&k_newact) : 0),
+		  "d" (oact ? __ptrvalue (&k_oldact) : 0));
 
   if (result < 0)
     {
diff --git a/sysdeps/unix/sysv/linux/i386/xstat.c b/sysdeps/unix/sysv/linux/i386/xstat.c
index 7f71a11d0c..54b0876726 100644
--- a/sysdeps/unix/sysv/linux/i386/xstat.c
+++ b/sysdeps/unix/sysv/linux/i386/xstat.c
@@ -28,15 +28,19 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
+
 #include "kernel-features.h"
 
 #include <xstatconv.c>
 
-extern int __syscall_stat (const char *, struct kernel_stat *);
+extern int __syscall_stat (const char *__unbounded,
+			   struct kernel_stat *__unbounded);
 
 #ifdef __NR_stat64
-extern int __syscall_stat64 (const char *, struct stat64 *);
-# if  __ASSUME_STAT64_SYSCALL == 0
+extern int __syscall_stat64 (const char *__unbounded,
+			     struct stat64 *__unbounded);
+# if __ASSUME_STAT64_SYSCALL == 0
 /* The variable is shared between all wrappers around *stat64 calls.  */
 extern int __have_no_stat64;
 # endif
@@ -53,14 +57,13 @@ __xstat (int vers, const char *name, struct stat *buf)
   int result;
 
   if (vers == _STAT_VER_KERNEL)
-    {
-      return INLINE_SYSCALL (stat, 2, name, (struct kernel_stat *) buf);
-    }
+    return INLINE_SYSCALL (stat, 2, CHECK_STRING (name), CHECK_1 ((struct kernel_stat *) buf));
+
 #if __ASSUME_STAT64_SYSCALL > 0
   {
     struct stat64 buf64;
 
-    result = INLINE_SYSCALL (stat64, 2, name, &buf64);
+    result = INLINE_SYSCALL (stat64, 2, CHECK_STRING (name), __ptrvalue (&buf64));
     if (result == 0)
       result = xstat32_conv (vers, &buf64, buf);
     return result;
@@ -73,7 +76,7 @@ __xstat (int vers, const char *name, struct stat *buf)
     {
       struct stat64 buf64;
 
-      result = INLINE_SYSCALL (stat64, 2, name, &buf64);
+      result = INLINE_SYSCALL (stat64, 2, CHECK_STRING (name), __ptrvalue (&buf64));
 
       if (result == 0)
 	result = xstat32_conv (vers, &buf64, buf);
@@ -83,8 +86,8 @@ __xstat (int vers, const char *name, struct stat *buf)
 
       __have_no_stat64 = 1;
     }
-# endif  
-  result = INLINE_SYSCALL (stat, 2, name, &kbuf);
+# endif
+  result = INLINE_SYSCALL (stat, 2, CHECK_STRING (name), __ptrvalue (&kbuf));
   if (result == 0)
     result = xstat_conv (vers, &kbuf, buf);
 
@@ -94,6 +97,6 @@ __xstat (int vers, const char *name, struct stat *buf)
 
 weak_alias (__xstat, _xstat);
 #ifdef XSTAT_IS_XSTAT64
-#undef __xstat64
+# undef __xstat64
 strong_alias (__xstat, __xstat64);
 #endif
diff --git a/sysdeps/unix/sysv/linux/ia64/fxstat.c b/sysdeps/unix/sysv/linux/ia64/fxstat.c
index bbf3a2a2ae..2b30bfb996 100644
--- a/sysdeps/unix/sysv/linux/ia64/fxstat.c
+++ b/sysdeps/unix/sysv/linux/ia64/fxstat.c
@@ -27,14 +27,15 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
-extern int __syscall_fstat (int, struct stat *);
+extern int __syscall_fstat (int, struct stat *__unbounded);
 
 /* Get information about the file FD in BUF.  */
 int
 __fxstat (int vers, int fd, struct stat *buf)
 {
-  return INLINE_SYSCALL (fstat, 2, fd, buf);
+  return INLINE_SYSCALL (fstat, 2, fd, CHECK_1 (buf));
 }
 
 weak_alias (__fxstat, _fxstat);
diff --git a/sysdeps/unix/sysv/linux/ia64/lxstat.c b/sysdeps/unix/sysv/linux/ia64/lxstat.c
index 463239c361..772bb25a83 100644
--- a/sysdeps/unix/sysv/linux/ia64/lxstat.c
+++ b/sysdeps/unix/sysv/linux/ia64/lxstat.c
@@ -27,14 +27,15 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
-extern int __syscall_lstat (const char *, struct stat *);
+extern int __syscall_lstat (const char *__unbounded, struct stat *__unbounded);
 
 /* Get information about the file FD in BUF.  */
 int
 __lxstat (int vers, const char *name, struct stat *buf)
 {
-  return INLINE_SYSCALL (lstat, 2, name, buf);
+  return INLINE_SYSCALL (lstat, 2, CHECK_STRING (name), CHECK_1 (buf));
 }
 
 weak_alias (__lxstat, _lxstat);
diff --git a/sysdeps/unix/sysv/linux/ia64/sigaction.c b/sysdeps/unix/sysv/linux/ia64/sigaction.c
index 3769abf0ea..6a43c1289e 100644
--- a/sysdeps/unix/sysv/linux/ia64/sigaction.c
+++ b/sysdeps/unix/sysv/linux/ia64/sigaction.c
@@ -27,9 +27,10 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
-extern int __syscall_rt_sigaction (int, const struct sigaction *,
-				   struct sigaction *, size_t);
+extern int __syscall_rt_sigaction (int, const struct sigaction *__unbounded,
+				   struct sigaction *__unbounded, size_t);
 
 /* The variable is shared between all wrappers around signal handling
    functions which have RT equivalents.  This is the definition.  */
@@ -45,7 +46,8 @@ __libc_sigaction (sig, act, oact)
 {
   /* XXX The size argument hopefully will have to be changed to the
      real size of the user-level sigset_t.  */
-  return INLINE_SYSCALL (rt_sigaction, 4, sig, act, oact, _NSIG / 8);
+  return INLINE_SYSCALL (rt_sigaction, 4, sig,
+			 CHECK_1opt (act), CHECK_1opt (oact), _NSIG / 8);
 }
 
 strong_alias (__libc_sigaction, __sigaction)
diff --git a/sysdeps/unix/sysv/linux/ia64/sigpending.c b/sysdeps/unix/sysv/linux/ia64/sigpending.c
index 9b56b4d631..4e80ac784d 100644
--- a/sysdeps/unix/sysv/linux/ia64/sigpending.c
+++ b/sysdeps/unix/sysv/linux/ia64/sigpending.c
@@ -25,8 +25,9 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
-extern int __syscall_rt_sigpending (sigset_t *, size_t);
+extern int __syscall_rt_sigpending (sigset_t *__unbounded, size_t);
 
 
 /* Change the set of blocked signals to SET,
@@ -37,5 +38,5 @@ sigpending (set)
 {
   /* XXX The size argument hopefully will have to be changed to the
      real size of the user-level sigset_t.  */
-  return INLINE_SYSCALL (rt_sigpending, 2, set, _NSIG / 8);
+  return INLINE_SYSCALL (rt_sigpending, 2, CHECK_SIGSET (set), _NSIG / 8);
 }
diff --git a/sysdeps/unix/sysv/linux/ia64/sigprocmask.c b/sysdeps/unix/sysv/linux/ia64/sigprocmask.c
index bcbbbe81bd..293a32797c 100644
--- a/sysdeps/unix/sysv/linux/ia64/sigprocmask.c
+++ b/sysdeps/unix/sysv/linux/ia64/sigprocmask.c
@@ -27,9 +27,10 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
-extern int __syscall_rt_sigprocmask (int, const sigset_t *, sigset_t *,
-				     size_t);
+extern int __syscall_rt_sigprocmask (int, const sigset_t *__unbounded,
+				     sigset_t *__unbounded, size_t);
 
 /* Get and/or change the set of blocked signals.  */
 int
@@ -41,6 +42,7 @@ __sigprocmask (how, set, oset)
 
   /* XXX The size argument hopefully will have to be changed to the
      real size of the user-level sigset_t.  */
-  return INLINE_SYSCALL (rt_sigprocmask, 4, how, set, oset, _NSIG / 8);
+  return INLINE_SYSCALL (rt_sigprocmask, 4, how, CHECK_SIGSET (set),
+			 CHECK_SIGSETopt (oset), _NSIG / 8);
 }
 weak_alias (__sigprocmask, sigprocmask)
diff --git a/sysdeps/unix/sysv/linux/ia64/sigsuspend.c b/sysdeps/unix/sysv/linux/ia64/sigsuspend.c
index 5eb4c6261b..477ca6cfbd 100644
--- a/sysdeps/unix/sysv/linux/ia64/sigsuspend.c
+++ b/sysdeps/unix/sysv/linux/ia64/sigsuspend.c
@@ -22,8 +22,9 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
-extern int __syscall_rt_sigsuspend (const sigset_t *, size_t);
+extern int __syscall_rt_sigsuspend (const sigset_t *__unbounded, size_t);
 
 
 /* Change the set of blocked signals to SET,
@@ -34,6 +35,6 @@ __sigsuspend (set)
 {
   /* XXX The size argument hopefully will have to be changed to the
      real size of the user-level sigset_t.  */
-  return INLINE_SYSCALL (rt_sigsuspend, 2, set, _NSIG / 8);
+  return INLINE_SYSCALL (rt_sigsuspend, 2, CHECK_SIGSET (set), _NSIG / 8);
 }
 weak_alias (__sigsuspend, sigsuspend)
diff --git a/sysdeps/unix/sysv/linux/ia64/xstat.c b/sysdeps/unix/sysv/linux/ia64/xstat.c
index 99ab5b6e5b..d3ffe56d36 100644
--- a/sysdeps/unix/sysv/linux/ia64/xstat.c
+++ b/sysdeps/unix/sysv/linux/ia64/xstat.c
@@ -27,14 +27,15 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
-extern int __syscall_stat (const char *, struct stat *);
+extern int __syscall_stat (const char *__unbounded, struct stat *__unbounded);
 
 /* Get information about the file NAME in BUF.  */
 int
 __xstat (int vers, const char *name, struct stat *buf)
 {
-  return INLINE_SYSCALL (stat, 2, name, buf);
+  return INLINE_SYSCALL (stat, 2, name, CHECK_1 (buf));
 }
 
 weak_alias (__xstat, _xstat);
diff --git a/sysdeps/unix/sysv/linux/llseek.c b/sysdeps/unix/sysv/linux/llseek.c
index 136eda7ac0..280f83d72e 100644
--- a/sysdeps/unix/sysv/linux/llseek.c
+++ b/sysdeps/unix/sysv/linux/llseek.c
@@ -24,7 +24,7 @@
 #include <sys/syscall.h>
 
 extern int __syscall__llseek (int fd, off_t offset_hi, off_t offset_lo,
-			      loff_t *result, int whence);
+			      loff_t *__unbounded result, int whence);
 
 /* Seek to OFFSET on FD, starting from WHENCE.  */
 loff_t
@@ -34,7 +34,7 @@ __llseek (int fd, loff_t offset, int whence)
 
   return (loff_t) (INLINE_SYSCALL (_llseek, 5, fd, (off_t) (offset >> 32),
 				   (off_t) (offset & 0xffffffff),
-				   &result, whence) ?: result);
+				   __ptrvalue (&result), whence) ?: result);
 }
 weak_alias (__llseek, llseek)
 strong_alias (__llseek, __libc_lseek64)
diff --git a/sysdeps/unix/sysv/linux/lxstat.c b/sysdeps/unix/sysv/linux/lxstat.c
index 50aa4f9969..503fc27bf8 100644
--- a/sysdeps/unix/sysv/linux/lxstat.c
+++ b/sysdeps/unix/sysv/linux/lxstat.c
@@ -1,5 +1,5 @@
 /* lxstat using old-style Unix lstat system call.
-   Copyright (C) 1991, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1991, 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -28,10 +28,11 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include <xstatconv.c>
 
-extern int __syscall_lstat (const char *, struct kernel_stat *);
+extern int __syscall_lstat (const char *__unbounded, struct kernel_stat *__unbounded);
 
 /* Get information about the file NAME in BUF.  */
 int
@@ -41,11 +42,10 @@ __lxstat (int vers, const char *name, struct stat *buf)
   int result;
 
   if (vers == _STAT_VER_KERNEL)
-    {
-      return INLINE_SYSCALL (lstat, 2, name, (struct kernel_stat *) buf);
-    }
+    return INLINE_SYSCALL (lstat, 2, CHECK_STRING (name),
+			   CHECK_1 ((struct kernel_stat *) buf));
 
-  result = INLINE_SYSCALL (lstat, 2, name, &kbuf);
+  result = INLINE_SYSCALL (lstat, 2, CHECK_STRING (name), __ptrvalue (&kbuf));
   if (result == 0)
     result = xstat_conv (vers, &kbuf, buf);
 
diff --git a/sysdeps/unix/sysv/linux/lxstat64.c b/sysdeps/unix/sysv/linux/lxstat64.c
index 4becf6e5ea..44097653c7 100644
--- a/sysdeps/unix/sysv/linux/lxstat64.c
+++ b/sysdeps/unix/sysv/linux/lxstat64.c
@@ -1,5 +1,5 @@
 /* lxstat64 using old-style Unix lstat system call.
-   Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -24,16 +24,18 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
+
 #include "kernel-features.h"
 
 #if __ASSUME_STAT64_SYSCALL == 0
 # include <xstatconv.c>
 #endif
 
-extern int __syscall_lstat (const char *, struct kernel_stat *);
+extern int __syscall_lstat (const char *__unbounded, struct kernel_stat *__unbounded);
 
 #ifdef __NR_lstat64
-extern int __syscall_lstat64 (const char *, struct stat64 *);
+extern int __syscall_lstat64 (const char *__unbounded, struct stat64 *__unbounded);
 # if  __ASSUME_STAT64_SYSCALL == 0
 /* The variable is shared between all wrappers around *stat64 calls.  */
 extern int __have_no_stat64;
@@ -45,7 +47,7 @@ int
 __lxstat64 (int vers, const char *name, struct stat64 *buf)
 {
 #ifdef __ASSUME_STAT64_SYSCALL
-  return INLINE_SYSCALL (lstat64, 2, name, buf);
+  return INLINE_SYSCALL (lstat64, 2, CHECK_STRING (name), CHECK_1 (buf));
 #else
   struct kernel_stat kbuf;
   int result;
@@ -53,7 +55,7 @@ __lxstat64 (int vers, const char *name, struct stat64 *buf)
   if (! __have_no_stat64)
     {
       int saved_errno = errno;
-      result = INLINE_SYSCALL (lstat64, 2, name, buf);
+      result = INLINE_SYSCALL (lstat64, 2, CHECK_STRING (name), CHECK_1 (buf));
 
       if (result != -1 || errno != ENOSYS)
 	return result;
@@ -62,7 +64,7 @@ __lxstat64 (int vers, const char *name, struct stat64 *buf)
       __have_no_stat64 = 1;
     }
 # endif
-  result = INLINE_SYSCALL (lstat, 2, name, &kbuf);
+  result = INLINE_SYSCALL (lstat, 2, CHECK_STRING (name), __ptrvalue (&kbuf));
   if (result == 0)
     result = xstat64_conv (vers, &kbuf, buf);
 
diff --git a/sysdeps/unix/sysv/linux/m68k/chown.c b/sysdeps/unix/sysv/linux/m68k/chown.c
index 79701ee6ff..e97c14834e 100644
--- a/sysdeps/unix/sysv/linux/m68k/chown.c
+++ b/sysdeps/unix/sysv/linux/m68k/chown.c
@@ -21,14 +21,15 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include <linux/posix_types.h>
 
-extern int __syscall_chown (const char *__file,
+extern int __syscall_chown (const char *__unbounded __file,
 			    __kernel_uid_t __owner, __kernel_gid_t __group);
 
 #ifdef __NR_chown32
-extern int __syscall_chown32 (const char *__file,
+extern int __syscall_chown32 (const char *__unbounded __file,
 			      __kernel_uid32_t owner, __kernel_gid32_t group);
 
 # if __ASSUME_32BITUIDS == 0
@@ -42,7 +43,7 @@ int
 __chown (const char *file, uid_t owner, gid_t group)
 {
 #if __ASSUME_32BITUIDS
-  return INLINE_SYSCALL (chown32, 3, file, owner, group);
+  return INLINE_SYSCALL (chown32, 3, CHECK_STRING (file), owner, group);
 #else
 # ifdef __NR_chown32
   if (__libc_missing_32bit_uids <= 0)
@@ -50,7 +51,7 @@ __chown (const char *file, uid_t owner, gid_t group)
       int result;
       int saved_errno = errno;
 
-      result = INLINE_SYSCALL (chown32, 3, file, owner, group);
+      result = INLINE_SYSCALL (chown32, 3, CHECK_STRING (file), owner, group);
       if (result == 0 || errno != ENOSYS)
 	return result;
 
@@ -66,7 +67,7 @@ __chown (const char *file, uid_t owner, gid_t group)
       return -1;
     }
 
-  return INLINE_SYSCALL (chown, 3, file, owner, group);
+  return INLINE_SYSCALL (chown, 3, CHECK_STRING (file), owner, group);
 #endif
 }
 weak_alias (__chown, chown)
diff --git a/sysdeps/unix/sysv/linux/mips/pread.c b/sysdeps/unix/sysv/linux/mips/pread.c
index dd1e5d8a05..93f19f4237 100644
--- a/sysdeps/unix/sysv/linux/mips/pread.c
+++ b/sysdeps/unix/sysv/linux/mips/pread.c
@@ -23,6 +23,7 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include <kernel-features.h>
 
@@ -32,8 +33,8 @@
 static ssize_t __emulate_pread (int fd, void *buf, size_t count,
 				off_t offset) internal_function;
 # endif
-extern ssize_t __syscall_pread (int fd, void *buf, size_t count, int dummy,
-				off_t offset_hi, off_t offset_lo);
+extern ssize_t __syscall_pread (int fd, void *__unbounded buf, size_t count,
+				int dummy, off_t offset_hi, off_t offset_lo);
 
 
 
@@ -47,7 +48,7 @@ __libc_pread (fd, buf, count, offset)
   ssize_t result;
 
   /* First try the syscall.  */
-  result = INLINE_SYSCALL (pread, 6, fd, buf, count, 0,
+  result = INLINE_SYSCALL (pread, 6, fd, CHECK_N (buf, count), count, 0,
 			   __LONG_LONG_PAIR (0, offset));
 # if __ASSUME_PREAD_SYSCALL == 0
   if (result == -1 && errno == ENOSYS)
diff --git a/sysdeps/unix/sysv/linux/mips/pread64.c b/sysdeps/unix/sysv/linux/mips/pread64.c
index 06a992e1cb..6482ce45ad 100644
--- a/sysdeps/unix/sysv/linux/mips/pread64.c
+++ b/sysdeps/unix/sysv/linux/mips/pread64.c
@@ -23,6 +23,7 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include <kernel-features.h>
 
@@ -33,8 +34,8 @@ static ssize_t __emulate_pread64 (int fd, void *buf, size_t count,
 				  off64_t offset) internal_function;
 # endif
 
-extern ssize_t __syscall_pread (int fd, void *buf, size_t count, int dummy,
-			        off_t offset_hi, off_t offset_lo);
+extern ssize_t __syscall_pread (int fd, void *__unbounded buf, size_t count,
+				int dummy, off_t offset_hi, off_t offset_lo);
 
 
 
@@ -48,7 +49,7 @@ __libc_pread64 (fd, buf, count, offset)
   ssize_t result;
 
   /* First try the syscall.  */
-  result = INLINE_SYSCALL (pread, 6, fd, buf, count, 0,
+  result = INLINE_SYSCALL (pread, 6, fd, CHECK_N (buf, count), count, 0,
 			   __LONG_LONG_PAIR ((off_t) (offset >> 32),
 					     (off_t) (offset & 0xffffffff)));
 # if __ASSUME_PREAD_SYSCALL == 0
diff --git a/sysdeps/unix/sysv/linux/mips/pwrite.c b/sysdeps/unix/sysv/linux/mips/pwrite.c
index b45bb84f4d..8283896d1a 100644
--- a/sysdeps/unix/sysv/linux/mips/pwrite.c
+++ b/sysdeps/unix/sysv/linux/mips/pwrite.c
@@ -23,12 +23,13 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include <kernel-features.h>
 
 #if defined __NR_pwrite || __ASSUME_PWRITE_SYSCALL > 0
 
-extern ssize_t __syscall_pwrite (int fd, const void *buf, size_t count,
+extern ssize_t __syscall_pwrite (int fd, const void *__unbounded buf, size_t count,
 				 int dummy, off_t offset_hi, off_t offset_lo);
 
 # if __ASSUME_PWRITE_SYSCALL == 0
@@ -46,7 +47,7 @@ __libc_pwrite (fd, buf, count, offset)
   ssize_t result;
 
   /* First try the syscall.  */
-  result = INLINE_SYSCALL (pwrite, 6, fd, buf, count, 0,
+  result = INLINE_SYSCALL (pwrite, 6, fd, CHECK_N (buf, count), count, 0,
 			   __LONG_LONG_PAIR (0, offset));
 # if __ASSUME_PWRITE_SYSCALL == 0
   if (result == -1 && errno == ENOSYS)
diff --git a/sysdeps/unix/sysv/linux/mips/pwrite64.c b/sysdeps/unix/sysv/linux/mips/pwrite64.c
index 0481064500..af07f608d2 100644
--- a/sysdeps/unix/sysv/linux/mips/pwrite64.c
+++ b/sysdeps/unix/sysv/linux/mips/pwrite64.c
@@ -23,12 +23,13 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include <kernel-features.h>
 
 #if defined __NR_pwrite || __ASSUME_PWRITE_SYSCALL > 0
 
-extern ssize_t __syscall_pwrite (int fd, const void *buf, size_t count,
+extern ssize_t __syscall_pwrite (int fd, const void *__unbounded buf, size_t count,
 				 int dummy, off_t offset_hi, off_t offset_lo);
 
 # if __ASSUME_PWRITE_SYSCALL == 0
@@ -46,7 +47,7 @@ __libc_pwrite64 (fd, buf, count, offset)
   ssize_t result;
 
   /* First try the syscall.  */
-  result = INLINE_SYSCALL (pwrite, 6, fd, buf, count, 0,
+  result = INLINE_SYSCALL (pwrite, 6, fd, CHECK_N (buf, count), count, 0,
 			   __LONG_LONG_PAIR ((off_t) (offset >> 32),
 					     (off_t) (offset & 0xffffffff)));
 # if __ASSUME_PWRITE_SYSCALL == 0
diff --git a/sysdeps/unix/sysv/linux/mips/truncate64.c b/sysdeps/unix/sysv/linux/mips/truncate64.c
index 7a446194d3..09a27556e5 100644
--- a/sysdeps/unix/sysv/linux/mips/truncate64.c
+++ b/sysdeps/unix/sysv/linux/mips/truncate64.c
@@ -23,6 +23,7 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include "kernel-features.h"
 
@@ -33,7 +34,7 @@ int __have_no_truncate64;
 #endif
 
 /* The order of hight, low depends on endianness.  */
-extern int __syscall_truncate64 (const char *path, int dummy,
+extern int __syscall_truncate64 (const char *__unbounded path, int dummy,
 				 int high_length, int low_length);
 
 
@@ -50,7 +51,7 @@ truncate64 (const char *path, off64_t length)
 #ifndef __ASSUME_TRUNCATE64_SYSCALL
       int saved_errno = errno;
 #endif
-      int result = INLINE_SYSCALL (truncate64, 3, path, 0,
+      int result = INLINE_SYSCALL (truncate64, 3, CHECK_STRING (path), 0,
 				   __LONG_LONG_PAIR (high, low));
 #ifndef __ASSUME_TRUNCATE64_SYSCALL
       if (result != -1 || errno != ENOSYS)
diff --git a/sysdeps/unix/sysv/linux/mips/ustat.c b/sysdeps/unix/sysv/linux/mips/ustat.c
index 63eb68c602..2afc3e7ae1 100644
--- a/sysdeps/unix/sysv/linux/mips/ustat.c
+++ b/sysdeps/unix/sysv/linux/mips/ustat.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -23,8 +23,9 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
-extern int __syscall_ustat (unsigned long dev, struct ustat *ubuf);
+extern int __syscall_ustat (unsigned long dev, struct ustat *__unbounded ubuf);
 
 int
 ustat (dev_t dev, struct ustat *ubuf)
@@ -34,5 +35,5 @@ ustat (dev_t dev, struct ustat *ubuf)
   /* We must convert the value to dev_t type used by the kernel.  */
   k_dev = ((major (dev) & 0xff) << 8) | (minor (dev) & 0xff);
 
-  return INLINE_SYSCALL (ustat, 2, k_dev, ubuf);
+  return INLINE_SYSCALL (ustat, 2, k_dev, CHECK_1 (ubuf));
 }
diff --git a/sysdeps/unix/sysv/linux/mips/xmknod.c b/sysdeps/unix/sysv/linux/mips/xmknod.c
index ba1b468b78..2fed00dbf6 100644
--- a/sysdeps/unix/sysv/linux/mips/xmknod.c
+++ b/sysdeps/unix/sysv/linux/mips/xmknod.c
@@ -1,5 +1,5 @@
 /* xmknod call using old-style Unix mknod system call.
-   Copyright (C) 1991, 93, 95, 96, 97, 98 Free Software Foundation, Inc.
+   Copyright (C) 1991, 93, 95, 96, 97, 98, 00 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -24,8 +24,9 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
-extern int __syscall_mknod (const char *, unsigned long, unsigned int);
+extern int __syscall_mknod (const char *__unbounded, unsigned long, unsigned int);
 
 /* Create a device file named PATH, with permission and special bits MODE
    and device number DEV (which can be constructed from major and minor
@@ -44,7 +45,7 @@ __xmknod (int vers, const char *path, mode_t mode, dev_t *dev)
   /* We must convert the value to dev_t type used by the kernel.  */
   k_dev = ((major (*dev) & 0xff) << 8) | (minor (*dev) & 0xff);
 
-  return INLINE_SYSCALL (mknod, 3, path, mode, k_dev);
+  return INLINE_SYSCALL (mknod, 3, CHECK_STRING (path), mode, k_dev);
 }
 
 weak_alias (__xmknod, _xmknod)
diff --git a/sysdeps/unix/sysv/linux/poll.c b/sysdeps/unix/sysv/linux/poll.c
index ba814161b4..9f831c8824 100644
--- a/sysdeps/unix/sysv/linux/poll.c
+++ b/sysdeps/unix/sysv/linux/poll.c
@@ -22,13 +22,14 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include "kernel-features.h"
 
 #if defined __NR_poll || __ASSUME_POLL_SYSCALL > 0
 
-extern int __syscall_poll (struct pollfd *fds, unsigned int nfds,
-			   int timeout);
+extern int __syscall_poll (struct pollfd *__unbounded fds,
+			   unsigned int nfds, int timeout);
 
 # if __ASSUME_POLL_SYSCALL == 0
 static int __emulate_poll (struct pollfd *fds, unsigned long int nfds,
@@ -48,7 +49,7 @@ __poll (fds, nfds, timeout)
   if (!must_emulate)
     {
       int errno_saved = errno;
-      int retval = INLINE_SYSCALL (poll, 3, fds, nfds, timeout);
+      int retval = INLINE_SYSCALL (poll, 3, CHECK_N (fds, nfds), nfds, timeout);
 
       if (retval >= 0 || errno != ENOSYS)
 	return retval;
@@ -59,7 +60,7 @@ __poll (fds, nfds, timeout)
 
   return __emulate_poll (fds, nfds, timeout);
 # else
-  return INLINE_SYSCALL (poll, 3, fds, nfds, timeout);
+  return INLINE_SYSCALL (poll, 3, CHECK_N (fds, nfds), nfds, timeout);
 # endif
 }
 weak_alias (__poll, poll)
diff --git a/sysdeps/unix/sysv/linux/pread.c b/sysdeps/unix/sysv/linux/pread.c
index 08faa28a1e..317f43b808 100644
--- a/sysdeps/unix/sysv/linux/pread.c
+++ b/sysdeps/unix/sysv/linux/pread.c
@@ -23,13 +23,14 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include "kernel-features.h"
 
 #if defined __NR_pread || __ASSUME_PREAD_SYSCALL > 0
 
 /* The order of hi, lo depends on endianness.  */
-extern ssize_t __syscall_pread (int fd, void *buf, size_t count,
+extern ssize_t __syscall_pread (int fd, void *__unbounded buf, size_t count,
 				off_t offset_hi, off_t offset_lo);
 
 # if __ASSUME_PREAD_SYSCALL == 0
@@ -48,9 +49,8 @@ __libc_pread (fd, buf, count, offset)
   ssize_t result;
 
   /* First try the syscall.  */
-  result = INLINE_SYSCALL (pread, 5, fd, buf, count,
+  result = INLINE_SYSCALL (pread, 5, fd, CHECK_N (buf, count), count,
 			   __LONG_LONG_PAIR (0, offset));
-
 # if __ASSUME_PREAD_SYSCALL == 0
   if (result == -1 && errno == ENOSYS)
     /* No system call available.  Use the emulation.  */
diff --git a/sysdeps/unix/sysv/linux/pread64.c b/sysdeps/unix/sysv/linux/pread64.c
index 479f4833de..706de3488d 100644
--- a/sysdeps/unix/sysv/linux/pread64.c
+++ b/sysdeps/unix/sysv/linux/pread64.c
@@ -23,12 +23,13 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include "kernel-features.h"
 
 #if defined __NR_pread || __ASSUME_PREAD_SYSCALL > 0
 
-extern ssize_t __syscall_pread (int fd, void *buf, size_t count,
+extern ssize_t __syscall_pread (int fd, void *__unbounded buf, size_t count,
 				off_t offset_hi, off_t offset_lo);
 
 # if __ASSUME_PREAD_SYSCALL == 0
@@ -47,10 +48,9 @@ __libc_pread64 (fd, buf, count, offset)
   ssize_t result;
 
   /* First try the syscall.  */
-  result = INLINE_SYSCALL (pread, 5, fd, buf, count,
+  result = INLINE_SYSCALL (pread, 5, fd, CHECK_N (buf, count), count,
 			   __LONG_LONG_PAIR ((off_t) (offset >> 32),
 					     (off_t) (offset & 0xffffffff)));
-
 # if __ASSUME_PREAD_SYSCALL == 0
   if (result == -1 && errno == ENOSYS)
     /* No system call available.  Use the emulation.  */
diff --git a/sysdeps/unix/sysv/linux/ptrace.c b/sysdeps/unix/sysv/linux/ptrace.c
index 109191ea47..3ed1af6c11 100644
--- a/sysdeps/unix/sysv/linux/ptrace.c
+++ b/sysdeps/unix/sysv/linux/ptrace.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -19,12 +19,15 @@
 #include <errno.h>
 #include <sys/types.h>
 #include <sys/ptrace.h>
+#include <sys/user.h>
 #include <stdarg.h>
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
-extern long int __syscall_ptrace (int, pid_t, void *, void *);
+extern long int __syscall_ptrace (int, pid_t, void *__unbounded,
+				  void *__unbounded);
 
 long int
 ptrace (enum __ptrace_request request, ...)
@@ -43,7 +46,56 @@ ptrace (enum __ptrace_request request, ...)
   if (request > 0 && request < 4)
     data = &ret;
 
-  res = INLINE_SYSCALL (ptrace, 4, request, pid, addr, data);
+#if __BOUNDED_POINTERS__
+  switch (request)
+    {
+    case PTRACE_PEEKTEXT:
+    case PTRACE_PEEKDATA:
+    case PTRACE_PEEKUSER:
+    case PTRACE_POKETEXT:
+    case PTRACE_POKEDATA:
+    case PTRACE_POKEUSER:
+      CHECK_1 ((int *) addr);
+      CHECK_1 ((int *) data);
+      break;
+
+    case PTRACE_GETREGS:
+    case PTRACE_SETREGS:
+#ifdef __i386__
+      CHECK_1 ((struct user_regs_struct *) data);
+#else
+      /* We don't know the size of data, so the best we can do is ensure
+	 that `data' is valid for at least one word.  */
+      CHECK_1 ((int *) data);
+#endif
+      break;
+
+    case PTRACE_GETFPREGS:
+    case PTRACE_SETFPREGS:
+#ifdef __i386__
+      CHECK_1 ((struct user_fpregs_struct *) data);
+#else
+      /* We don't know the size of data, so the best we can do is ensure
+	 that `data' is valid for at least one word.  */
+      CHECK_1 ((int *) data);
+#endif
+      break;
+
+    case PTRACE_GETFPXREGS:
+    case PTRACE_SETFPXREGS:
+#ifdef __i386__
+      CHECK_1 ((struct user_fpxregs_struct *) data);
+#else
+      /* We don't know the size of data, so the best we can do is ensure
+	 that `data' is valid for at least one word.  */
+      CHECK_1 ((int *) data);
+#endif
+      break;
+    };
+#endif
+
+  res = INLINE_SYSCALL (ptrace, 4, request, pid,
+			__ptrvalue (addr), __ptrvalue (data));
   if (res >= 0 && request > 0 && request < 4)
     {
       __set_errno (0);
diff --git a/sysdeps/unix/sysv/linux/pwrite.c b/sysdeps/unix/sysv/linux/pwrite.c
index dab46dc035..4aa91dff3f 100644
--- a/sysdeps/unix/sysv/linux/pwrite.c
+++ b/sysdeps/unix/sysv/linux/pwrite.c
@@ -23,13 +23,14 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include "kernel-features.h"
 
 #if defined __NR_pwrite || __ASSUME_PWRITE_SYSCALL > 0
 
 /* The order of hi, lo depends on endianness.  */
-extern ssize_t __syscall_pwrite (int fd, const void *buf, size_t count,
+extern ssize_t __syscall_pwrite (int fd, const void *__unbounded buf, size_t count,
 				 off_t offset_hi, off_t offset_lo);
 
 # if __ASSUME_PWRITE_SYSCALL == 0
@@ -48,7 +49,7 @@ __libc_pwrite (fd, buf, count, offset)
   ssize_t result;
 
   /* First try the syscall.  */
-  result = INLINE_SYSCALL (pwrite, 5, fd, buf, count,
+  result = INLINE_SYSCALL (pwrite, 5, fd, CHECK_N (buf, count), count,
 			   __LONG_LONG_PAIR (0, offset));
 # if __ASSUME_PWRITE_SYSCALL == 0
   if (result == -1 && errno == ENOSYS)
diff --git a/sysdeps/unix/sysv/linux/pwrite64.c b/sysdeps/unix/sysv/linux/pwrite64.c
index b1039f097a..2ce244c2ce 100644
--- a/sysdeps/unix/sysv/linux/pwrite64.c
+++ b/sysdeps/unix/sysv/linux/pwrite64.c
@@ -23,12 +23,13 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include "kernel-features.h"
 
 #if defined __NR_pwrite || __ASSUME_PWRITE_SYSCALL > 0
 
-extern ssize_t __syscall_pwrite (int fd, const void *buf, size_t count,
+extern ssize_t __syscall_pwrite (int fd, const void *__unbounded buf, size_t count,
 				 off_t offset_hi, off_t offset_lo);
 
 # if __ASSUME_PWRITE_SYSCALL == 0
@@ -47,7 +48,7 @@ __libc_pwrite64 (fd, buf, count, offset)
   ssize_t result;
 
   /* First try the syscall.  */
-  result = INLINE_SYSCALL (pwrite, 5, fd, buf, count,
+  result = INLINE_SYSCALL (pwrite, 5, fd, CHECK_N (buf, count), count,
 			   __LONG_LONG_PAIR ((off_t) (offset >> 32),
 					     (off_t) (offset & 0xffffffff)));
 # if __ASSUME_PWRITE_SYSCALL == 0
diff --git a/sysdeps/unix/sysv/linux/readv.c b/sysdeps/unix/sysv/linux/readv.c
index 63fd237791..6b3b6f3fdc 100644
--- a/sysdeps/unix/sysv/linux/readv.c
+++ b/sysdeps/unix/sysv/linux/readv.c
@@ -24,8 +24,9 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
-extern ssize_t __syscall_readv (int, __const struct iovec *, int);
+extern ssize_t __syscall_readv (int, __const struct iovec *__unbounded, int);
 static ssize_t __atomic_readv_replacement (int, __const struct iovec *,
 					   int) internal_function;
 
@@ -47,7 +48,7 @@ __readv (fd, vector, count)
   int errno_saved = errno;
   ssize_t bytes_read;
 
-  bytes_read = INLINE_SYSCALL (readv, 3, fd, vector, count);
+  bytes_read = INLINE_SYSCALL (readv, 3, fd, CHECK_N (vector, count), count);
 
   if (bytes_read >= 0 || errno != EINVAL || count <= UIO_FASTIOV)
     return bytes_read;
diff --git a/sysdeps/unix/sysv/linux/sigaction.c b/sysdeps/unix/sysv/linux/sigaction.c
index d97b8bf62d..fc66d3d221 100644
--- a/sysdeps/unix/sysv/linux/sigaction.c
+++ b/sysdeps/unix/sysv/linux/sigaction.c
@@ -35,11 +35,11 @@
    functions which have RT equivalents.  This is the definition.  */
 int __libc_missing_rt_sigs;
 
-extern int __syscall_sigaction (int, const struct old_kernel_sigaction *,
-				struct old_kernel_sigaction *);
+extern int __syscall_sigaction (int, const struct old_kernel_sigaction *__unbounded,
+				struct old_kernel_sigaction *__unbounded);
 #endif
-extern int __syscall_rt_sigaction (int, const struct kernel_sigaction *,
-				   struct kernel_sigaction *, size_t);
+extern int __syscall_rt_sigaction (int, const struct kernel_sigaction *__unbounded,
+				   struct kernel_sigaction *__unbounded, size_t);
 
 
 /* If ACT is not NULL, change the action for SIG to *ACT.
@@ -80,8 +80,9 @@ __libc_sigaction (sig, act, oact)
 
       /* XXX The size argument hopefully will have to be changed to the
 	 real size of the user-level sigset_t.  */
-      result = INLINE_SYSCALL (rt_sigaction, 4, sig, act ? &kact : NULL,
-			       oact ? &koact : NULL, _NSIG / 8);
+      result = INLINE_SYSCALL (rt_sigaction, 4, sig,
+			       act ? __ptrvalue (&kact) : NULL,
+			       oact ? __ptrvalue (&koact) : NULL, _NSIG / 8);
 
 # if __ASSUME_REALTIME_SIGNALS == 0
       if (result >= 0 || errno != ENOSYS)
@@ -116,8 +117,9 @@ __libc_sigaction (sig, act, oact)
       k_sigact.sa_restorer = act->sa_restorer;
 # endif
     }
-  result = INLINE_SYSCALL (sigaction, 3, sig, act ? &k_sigact : NULL,
-			   oact ? &k_osigact : NULL);
+  result = INLINE_SYSCALL (sigaction, 3, sig,
+			   act ? __ptrvalue (&k_sigact) : NULL,
+			   oact ? __ptrvalue (&k_osigact) : NULL);
   if (oact && result >= 0)
     {
       oact->sa_handler = k_osigact.k_sa_handler;
diff --git a/sysdeps/unix/sysv/linux/sigpending.c b/sysdeps/unix/sysv/linux/sigpending.c
index 932314520c..d84abb8a14 100644
--- a/sysdeps/unix/sysv/linux/sigpending.c
+++ b/sysdeps/unix/sysv/linux/sigpending.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -22,11 +22,12 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include "kernel-features.h"
 
-extern int __syscall_sigpending (sigset_t *);
-extern int __syscall_rt_sigpending (sigset_t *, size_t);
+extern int __syscall_sigpending (sigset_t *__unbounded);
+extern int __syscall_rt_sigpending (sigset_t *__unbounded, size_t);
 
 
 /* The variable is shared between all wrappers around signal handling
@@ -41,7 +42,7 @@ sigpending (set)
      sigset_t *set;
 {
 #if __ASSUME_REALTIME_SIGNALS > 0
-  return INLINE_SYSCALL (rt_sigpending, 2, set, _NSIG / 8);
+  return INLINE_SYSCALL (rt_sigpending, 2, CHECK_SIGSET (set), _NSIG / 8);
 #else
 # ifdef __NR_rt_pending
   /* First try the RT signals.  */
@@ -50,7 +51,7 @@ sigpending (set)
       /* XXX The size argument hopefully will have to be changed to the
 	 real size of the user-level sigset_t.  */
       int saved_errno = errno;
-      int result = INLINE_SYSCALL (rt_sigpending, 2, set, _NSIG / 8);
+      int result = INLINE_SYSCALL (rt_sigpending, 2, CHECK_SIGSET (set), _NSIG / 8);
 
       if (result >= 0 || errno != ENOSYS)
 	return result;
@@ -60,6 +61,6 @@ sigpending (set)
     }
 # endif
 
-  return INLINE_SYSCALL (sigpending, 1, set);
+  return INLINE_SYSCALL (sigpending, 1, CHECK_SIGSET (set));
 #endif
 }
diff --git a/sysdeps/unix/sysv/linux/sigprocmask.c b/sysdeps/unix/sysv/linux/sigprocmask.c
index 3e0719aa7f..7590071eea 100644
--- a/sysdeps/unix/sysv/linux/sigprocmask.c
+++ b/sysdeps/unix/sysv/linux/sigprocmask.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -22,13 +22,15 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include "kernel-features.h"
 
 
-extern int __syscall_sigprocmask (int, const sigset_t *, sigset_t *);
-extern int __syscall_rt_sigprocmask (int, const sigset_t *, sigset_t *,
-				     size_t);
+extern int __syscall_sigprocmask (int, const sigset_t *__unbounded,
+				  sigset_t *__unbounded);
+extern int __syscall_rt_sigprocmask (int, const sigset_t *__unbounded,
+				     sigset_t *__unbounded, size_t);
 
 /* The variable is shared between all wrappers around signal handling
    functions which have RT equivalents.  The definition is in sigaction.c.  */
@@ -43,7 +45,8 @@ __sigprocmask (how, set, oset)
      sigset_t *oset;
 {
 #if __ASSUME_REALTIME_SIGNALS > 0
-  return INLINE_SYSCALL (rt_sigprocmask, 4, how, set, oset, _NSIG / 8);
+  return INLINE_SYSCALL (rt_sigprocmask, 4, how, CHECK_SIGSET (set),
+			 CHECK_SIGSETopt (oset), _NSIG / 8);
 #else
 # ifdef __NR_rt_sigprocmask
   /* First try the RT signals.  */
@@ -52,8 +55,8 @@ __sigprocmask (how, set, oset)
       /* XXX The size argument hopefully will have to be changed to the
 	 real size of the user-level sigset_t.  */
       int saved_errno = errno;
-      int result = INLINE_SYSCALL (rt_sigprocmask, 4, how, set, oset,
-				   _NSIG / 8);
+      int result = INLINE_SYSCALL (rt_sigprocmask, 4, how, CHECK_SIGSET (set),
+				   CHECK_SIGSETopt (oset), _NSIG / 8);
 
       if (result >= 0 || errno != ENOSYS)
 	return result;
@@ -63,7 +66,8 @@ __sigprocmask (how, set, oset)
     }
 # endif
 
-  return INLINE_SYSCALL (sigprocmask, 3, how, set, oset);
+  return INLINE_SYSCALL (sigprocmask, 3, how,
+			 CHECK_SIGSET (set), CHECK_SIGSETopt (oset));
 #endif
 }
 weak_alias (__sigprocmask, sigprocmask)
diff --git a/sysdeps/unix/sysv/linux/sigqueue.c b/sysdeps/unix/sysv/linux/sigqueue.c
index a37435ca69..4b465ff75e 100644
--- a/sysdeps/unix/sysv/linux/sigqueue.c
+++ b/sysdeps/unix/sysv/linux/sigqueue.c
@@ -24,7 +24,7 @@
 #include <sysdep.h>
 #include <sys/syscall.h>
 
-extern int __syscall_rt_sigqueueinfo (int, int, siginfo_t *);
+extern int __syscall_rt_sigqueueinfo (int, int, siginfo_t *__unbounded);
 
 #ifdef __NR_rt_sigqueueinfo
 /* Return any pending signal or wait for one for the given time.  */
@@ -46,7 +46,7 @@ __sigqueue (pid, sig, val)
   info.si_uid = __getuid ();
   info.si_value = val;
 
-  return INLINE_SYSCALL (rt_sigqueueinfo, 3, pid, sig, &info);
+  return INLINE_SYSCALL (rt_sigqueueinfo, 3, pid, sig, __ptrvalue (&info));
 }
 weak_alias (__sigqueue, sigqueue)
 #else
diff --git a/sysdeps/unix/sysv/linux/sigsuspend.c b/sysdeps/unix/sysv/linux/sigsuspend.c
index da743396b8..51c5e87fa0 100644
--- a/sysdeps/unix/sysv/linux/sigsuspend.c
+++ b/sysdeps/unix/sysv/linux/sigsuspend.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -22,11 +22,12 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include "kernel-features.h"
 
 extern int __syscall_sigsuspend (int, unsigned long int, unsigned long int);
-extern int __syscall_rt_sigsuspend (const sigset_t *, size_t);
+extern int __syscall_rt_sigsuspend (const sigset_t *__unbounded, size_t);
 
 
 /* The variable is shared between all wrappers around signal handling
@@ -41,7 +42,7 @@ __sigsuspend (set)
      const sigset_t *set;
 {
 #if __ASSUME_REALTIME_SIGNALS
-  return INLINE_SYSCALL (rt_sigsuspend, 2, set, _NSIG / 8);
+  return INLINE_SYSCALL (rt_sigsuspend, 2, CHECK_SIGSET (set), _NSIG / 8);
 #else
 # ifdef __NR_rt_sigsuspend
   /* First try the RT signals.  */
@@ -50,8 +51,8 @@ __sigsuspend (set)
       /* XXX The size argument hopefully will have to be changed to the
 	 real size of the user-level sigset_t.  */
       int saved_errno = errno;
-      int result = INLINE_SYSCALL (rt_sigsuspend, 2, set, _NSIG / 8);
-
+      int result = INLINE_SYSCALL (rt_sigsuspend, 2,
+				   CHECK_SIGSET (set), _NSIG / 8);
       if (result >= 0 || errno != ENOSYS)
 	return result;
 
diff --git a/sysdeps/unix/sysv/linux/sigtimedwait.c b/sysdeps/unix/sysv/linux/sigtimedwait.c
index 4bb7396a42..e7459b1f77 100644
--- a/sysdeps/unix/sysv/linux/sigtimedwait.c
+++ b/sysdeps/unix/sysv/linux/sigtimedwait.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -21,10 +21,11 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #ifdef __NR_rt_sigtimedwait
-extern int __syscall_rt_sigtimedwait (const sigset_t *, siginfo_t *,
-				      const struct timespec *, size_t);
+extern int __syscall_rt_sigtimedwait (const sigset_t *__unbounded, siginfo_t *__unbounded,
+				      const struct timespec *__unbounded, size_t);
 
 
 /* Return any pending signal or wait for one for the given time.  */
@@ -36,7 +37,8 @@ __sigtimedwait (set, info, timeout)
 {
   /* XXX The size argument hopefully will have to be changed to the
      real size of the user-level sigset_t.  */
-  return INLINE_SYSCALL (rt_sigtimedwait, 4, set, info, timeout, _NSIG / 8);
+  return INLINE_SYSCALL (rt_sigtimedwait, 4, CHECK_SIGSET (set),
+			 CHECK_1 (info), timeout, _NSIG / 8);
 }
 weak_alias (__sigtimedwait, sigtimedwait)
 #else
diff --git a/sysdeps/unix/sysv/linux/sigwaitinfo.c b/sysdeps/unix/sysv/linux/sigwaitinfo.c
index ae51275711..12a2ba3399 100644
--- a/sysdeps/unix/sysv/linux/sigwaitinfo.c
+++ b/sysdeps/unix/sysv/linux/sigwaitinfo.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -23,10 +23,11 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #ifdef __NR_rt_sigtimedwait
-extern int __syscall_rt_sigtimedwait (const sigset_t *, siginfo_t *,
-				      const struct timespec *, size_t);
+extern int __syscall_rt_sigtimedwait (const sigset_t *__unbounded, siginfo_t *__unbounded,
+				      const struct timespec *__unbounded, size_t);
 
 
 /* Return any pending signal or wait for one for the given time.  */
@@ -37,7 +38,8 @@ __sigwaitinfo (set, info)
 {
   /* XXX The size argument hopefully will have to be changed to the
      real size of the user-level sigset_t.  */
-  return INLINE_SYSCALL (rt_sigtimedwait, 4, set, info, NULL, _NSIG / 8);
+  return INLINE_SYSCALL (rt_sigtimedwait, 4, CHECK_SIGSET (set),
+			 CHECK_1 (info), NULL, _NSIG / 8);
 }
 weak_alias (__sigwaitinfo, sigwaitinfo)
 #else
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/mmap64.c b/sysdeps/unix/sysv/linux/sparc/sparc32/mmap64.c
index 1218f9dae0..673aecf885 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/mmap64.c
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/mmap64.c
@@ -19,19 +19,20 @@
 
 #include <errno.h>
 #include <unistd.h>
+#include <sys/mman.h>
 
 #include <sysdep.h>
 #include <sys/syscall.h>
-
-#include <sys/mman.h>
+#include <bp-checks.h>
 
 #include "kernel-features.h"
 
 #ifdef __NR_mmap2
-extern __ptr_t __syscall_mmap2(__ptr_t, size_t, int, int, int, off_t);
-#ifndef __ASSUME_MMAP2_SYSCALL
+extern void *__unbounded __syscall_mmap2 (void *__unbounded, size_t,
+					  int, int, int, off_t);
+# ifndef __ASSUME_MMAP2_SYSCALL
 static int have_no_mmap2;
-#endif
+# endif
 #endif
 
 __ptr_t
@@ -39,28 +40,32 @@ __mmap64 (__ptr_t addr, size_t len, int prot, int flags, int fd, off64_t offset)
 {
 #ifdef __NR_mmap2
   if (
-#ifndef __ASSUME_MMAP2_SYSCALL
+# ifndef __ASSUME_MMAP2_SYSCALL
       ! have_no_mmap2 &&
-#endif
+# endif
       ! (offset & 4095))
     {
-#ifndef __ASSUME_MMAP2_SYSCALL
+# ifndef __ASSUME_MMAP2_SYSCALL
       int saved_errno = errno;
-#endif
+# endif
       /* This will be always 12, no matter what page size is.  */
-      __ptr_t result =
-	(__ptr_t) INLINE_SYSCALL (mmap2, 6, addr, len, prot, flags,
-				  fd, (off_t) (offset >> 12));
-
-#ifndef __ASSUME_MMAP2_SYSCALL
+      __ptr_t result;
+      __ptrvalue (result) =
+	(void *__unbounded) INLINE_SYSCALL (mmap2, 6, addr, len, prot, flags,
+					    fd, (off_t) (offset >> 12));
+# if __BOUNDED_POINTERS__
+      __ptrlow (result) = __ptrvalue (result);
+      __ptrhigh (result) = __ptrvalue (result) + len;
+# endif
+# ifndef __ASSUME_MMAP2_SYSCALL
       if (result != (__ptr_t) -1 || errno != ENOSYS)
-#endif
+# endif
 	return result;
 
-#ifndef __ASSUME_MMAP2_SYSCALL
+# ifndef __ASSUME_MMAP2_SYSCALL
       __set_errno (saved_errno);
       have_no_mmap2 = 1;
-#endif
+# endif
     }
 #endif
   if (offset != (off_t) offset || (offset + len) != (off_t) (offset + len))
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c b/sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c
index 3fba97fd51..86b6e55f77 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c
@@ -24,6 +24,7 @@
 #include <sysdep.h>
 #include <sys/signal.h>
 #include <errno.h>
+
 #include <kernel_sigaction.h>
 
 /* SPARC 64bit userland requires a kernel that has rt signals anyway. */
@@ -48,8 +49,9 @@ __libc_sigaction (int sig, __const struct sigaction *act,
 
   /* XXX The size argument hopefully will have to be changed to the
      real size of the user-level sigset_t.  */
-  ret = INLINE_SYSCALL (rt_sigaction, 5, sig, act ? &kact : 0,
-			oact ? &koact : 0, stub, _NSIG / 8);
+  ret = INLINE_SYSCALL (rt_sigaction, 5, sig,
+			act ? __ptrvalue (&kact) : 0,
+			oact ? __ptrvalue (&koact) : 0, stub, _NSIG / 8);
 
   if (oact && ret >= 0)
     {
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/sigpending.c b/sysdeps/unix/sysv/linux/sparc/sparc64/sigpending.c
index 45ed655b8c..38fab1ccc0 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/sigpending.c
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/sigpending.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -22,8 +22,9 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
-extern int __syscall_rt_sigpending (sigset_t *, size_t);
+extern int __syscall_rt_sigpending (sigset_t *__unbounded, size_t);
 
 
 /* Change the set of blocked signals to SET,
@@ -34,5 +35,5 @@ sigpending (set)
 {
   /* XXX The size argument hopefully will have to be changed to the
      real size of the user-level sigset_t.  */
-  return INLINE_SYSCALL (rt_sigpending, 2, set, _NSIG / 8);
+  return INLINE_SYSCALL (rt_sigpending, 2, CHECK_SIGSET (set), _NSIG / 8);
 }
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/sigprocmask.c b/sysdeps/unix/sysv/linux/sparc/sparc64/sigprocmask.c
index dc3634bfa0..cb0b275f1c 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/sigprocmask.c
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/sigprocmask.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -22,9 +22,10 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
-extern int __syscall_rt_sigprocmask (int, const sigset_t *, sigset_t *,
-				     size_t);
+extern int __syscall_rt_sigprocmask (int, const sigset_t *__unbounded,
+				     sigset_t *__unbounded, size_t);
 
 /* Get and/or change the set of blocked signals.  */
 int
@@ -35,6 +36,7 @@ __sigprocmask (how, set, oset)
 {
   /* XXX The size argument hopefully will have to be changed to the
      real size of the user-level sigset_t.  */
-  return INLINE_SYSCALL (rt_sigprocmask, 4, how, set, oset, _NSIG / 8);
+  return INLINE_SYSCALL (rt_sigprocmask, 4, how, CHECK_SIGSET (set),
+			 CHECK_SIGSETopt (oset), _NSIG / 8);
 }
 weak_alias (__sigprocmask, sigprocmask)
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/sigsuspend.c b/sysdeps/unix/sysv/linux/sparc/sparc64/sigsuspend.c
index 9294662dc9..184a6ed72f 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/sigsuspend.c
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/sigsuspend.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -22,8 +22,9 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
-extern int __syscall_rt_sigsuspend (const sigset_t *, size_t);
+extern int __syscall_rt_sigsuspend (const sigset_t *__unbounded, size_t);
 
 /* Change the set of blocked signals to SET,
    wait until a signal arrives, and restore the set of blocked signals.  */
@@ -33,6 +34,6 @@ __sigsuspend (set)
 {
   /* XXX The size argument hopefully will have to be changed to the
      real size of the user-level sigset_t.  */
-  return INLINE_SYSCALL (rt_sigsuspend, 2, set, _NSIG / 8);
+  return INLINE_SYSCALL (rt_sigsuspend, 2, CHECK_SIGSET (set), _NSIG / 8);
 }
 weak_alias (__sigsuspend, sigsuspend)
diff --git a/sysdeps/unix/sysv/linux/sysctl.c b/sysdeps/unix/sysv/linux/sysctl.c
index b131820a30..d2f5170a8e 100644
--- a/sysdeps/unix/sysv/linux/sysctl.c
+++ b/sysdeps/unix/sysv/linux/sysctl.c
@@ -1,5 +1,5 @@
 /* Read or write system information.  Linux version.
-   Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -22,13 +22,15 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
-extern int __syscall__sysctl (struct __sysctl_args *args);
+extern int __syscall__sysctl (struct __sysctl_args *__unbounded args);
 
 int
 __sysctl (int *name, int nlen, void *oldval, size_t *oldlenp,
 	  void *newval, size_t newlen)
 {
+  /* GKM FIXME: force __sysctl_args decl to have unbounded pointers.  */
   struct __sysctl_args args =
   {
     name: name,
@@ -38,7 +40,10 @@ __sysctl (int *name, int nlen, void *oldval, size_t *oldlenp,
     newval: newval,
     newlen: newlen
   };
+  CHECK_N (name, nlen);
+  CHECK_N (oldval, *oldlenp);
+  CHECK_N (newval, newlen);
 
-  return INLINE_SYSCALL (_sysctl, 1, &args);
+  return INLINE_SYSCALL (_sysctl, 1, __ptrvalue (&args));
 }
 weak_alias (__sysctl, sysctl)
diff --git a/sysdeps/unix/sysv/linux/truncate64.c b/sysdeps/unix/sysv/linux/truncate64.c
index f0f49e1dee..6108438bfb 100644
--- a/sysdeps/unix/sysv/linux/truncate64.c
+++ b/sysdeps/unix/sysv/linux/truncate64.c
@@ -23,6 +23,7 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include "kernel-features.h"
 
@@ -33,8 +34,8 @@ int __have_no_truncate64;
 #endif
 
 /* The order of hight, low depends on endianness.  */
-extern int __syscall_truncate64 (const char *path, int high_length, int low_length);
-
+extern int __syscall_truncate64 (const char *__unbounded path,
+				 int high_length, int low_length);
 
 /* Truncate the file FD refers to to LENGTH bytes.  */
 int
@@ -49,9 +50,8 @@ truncate64 (const char *path, off64_t length)
 #ifndef __ASSUME_TRUNCATE64_SYSCALL
       int saved_errno = errno;
 #endif
-      int result = INLINE_SYSCALL (truncate64, 3, path,
+      int result = INLINE_SYSCALL (truncate64, 3, CHECK_STRING (path),
 				   __LONG_LONG_PAIR (high, low));
-
 #ifndef __ASSUME_TRUNCATE64_SYSCALL
       if (result != -1 || errno != ENOSYS)
 #endif
diff --git a/sysdeps/unix/sysv/linux/ustat.c b/sysdeps/unix/sysv/linux/ustat.c
index fdf20324b2..da54de2042 100644
--- a/sysdeps/unix/sysv/linux/ustat.c
+++ b/sysdeps/unix/sysv/linux/ustat.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -23,8 +23,9 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
-extern int __syscall_ustat (unsigned short int dev, struct ustat *ubuf);
+extern int __syscall_ustat (unsigned short int, struct ustat *__unbounded);
 
 int
 ustat (dev_t dev, struct ustat *ubuf)
@@ -34,5 +35,5 @@ ustat (dev_t dev, struct ustat *ubuf)
   /* We must convert the value to dev_t type used by the kernel.  */
   k_dev = ((major (dev) & 0xff) << 8) | (minor (dev) & 0xff);
 
-  return INLINE_SYSCALL (ustat, 2, k_dev, ubuf);
+  return INLINE_SYSCALL (ustat, 2, k_dev, CHECK_1 (ubuf));
 }
diff --git a/sysdeps/unix/sysv/linux/writev.c b/sysdeps/unix/sysv/linux/writev.c
index 0d17d7787e..91576e5915 100644
--- a/sysdeps/unix/sysv/linux/writev.c
+++ b/sysdeps/unix/sysv/linux/writev.c
@@ -24,8 +24,9 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
-extern ssize_t __syscall_writev (int, const struct iovec *, int);
+extern ssize_t __syscall_writev (int, const struct iovec *__unbounded, int);
 static ssize_t __atomic_writev_replacement (int, const struct iovec *,
 					    int) internal_function;
 
@@ -47,7 +48,7 @@ __writev (fd, vector, count)
   int errno_saved = errno;
   ssize_t bytes_written;
 
-  bytes_written = INLINE_SYSCALL (writev, 3, fd, vector, count);
+  bytes_written = INLINE_SYSCALL (writev, 3, fd, CHECK_N (vector, count), count);
 
   if (bytes_written >= 0 || errno != EINVAL || count <= UIO_FASTIOV)
     return bytes_written;
diff --git a/sysdeps/unix/sysv/linux/xmknod.c b/sysdeps/unix/sysv/linux/xmknod.c
index d58da2828d..c31a15ffb4 100644
--- a/sysdeps/unix/sysv/linux/xmknod.c
+++ b/sysdeps/unix/sysv/linux/xmknod.c
@@ -1,5 +1,5 @@
 /* xmknod call using old-style Unix mknod system call.
-   Copyright (C) 1991, 93, 95, 96, 97, 98 Free Software Foundation, Inc.
+   Copyright (C) 1991, 93, 95, 96, 97, 98, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -24,8 +24,9 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
-extern int __syscall_mknod (const char *, unsigned short int,
+extern int __syscall_mknod (const char *__unbounded, unsigned short int,
 			    unsigned short int);
 
 /* Create a device file named PATH, with permission and special bits MODE
@@ -45,7 +46,7 @@ __xmknod (int vers, const char *path, mode_t mode, dev_t *dev)
   /* We must convert the value to dev_t type used by the kernel.  */
   k_dev = ((major (*dev) & 0xff) << 8) | (minor (*dev) & 0xff);
 
-  return INLINE_SYSCALL (mknod, 3, path, mode, k_dev);
+  return INLINE_SYSCALL (mknod, 3, CHECK_STRING (path), mode, k_dev);
 }
 
 weak_alias (__xmknod, _xmknod)
diff --git a/sysdeps/unix/sysv/linux/xstat.c b/sysdeps/unix/sysv/linux/xstat.c
index 79759fec63..11760b73a9 100644
--- a/sysdeps/unix/sysv/linux/xstat.c
+++ b/sysdeps/unix/sysv/linux/xstat.c
@@ -1,5 +1,5 @@
 /* xstat using old-style Unix stat system call.
-   Copyright (C) 1991, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1991, 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -28,10 +28,11 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
 #include <xstatconv.c>
 
-extern int __syscall_stat (const char *, struct kernel_stat *);
+extern int __syscall_stat (const char *__unbounded, struct kernel_stat *__unbounded);
 
 /* Get information about the file NAME in BUF.  */
 int
@@ -41,11 +42,11 @@ __xstat (int vers, const char *name, struct stat *buf)
   int result;
 
   if (vers == _STAT_VER_KERNEL)
-    {
-      return INLINE_SYSCALL (stat, 2, name, (struct kernel_stat *) buf);
-    }
+    return INLINE_SYSCALL (stat, 2, CHECK_STRING (name),
+			   CHECK_1 ((struct kernel_stat *) buf));
 
-  result = INLINE_SYSCALL (stat, 2, name, &kbuf);
+  result = INLINE_SYSCALL (stat, 2, CHECK_STRING (name),
+			   __ptrvalue (&kbuf));
   if (result == 0)
     result = xstat_conv (vers, &kbuf, buf);
 
diff --git a/sysdeps/unix/sysv/linux/xstat64.c b/sysdeps/unix/sysv/linux/xstat64.c
index 1a5dab45e0..55d4bea57a 100644
--- a/sysdeps/unix/sysv/linux/xstat64.c
+++ b/sysdeps/unix/sysv/linux/xstat64.c
@@ -1,5 +1,5 @@
 /* xstat64 using old-style Unix stat system call.
-   Copyright (C) 1991, 95, 96, 97, 98, 99 Free Software Foundation, Inc.
+   Copyright (C) 1991, 95, 96, 97, 98, 99, 00 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -24,16 +24,18 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
+
 #include "kernel-features.h"
 
 #if __ASSUME_STAT64_SYSCALL == 0
 # include <xstatconv.c>
 #endif
 
-extern int __syscall_stat (const char *, struct kernel_stat *);
+extern int __syscall_stat (const char *__unbounded, struct kernel_stat *__unbounded);
 
 #ifdef __NR_stat64
-extern int __syscall_stat64 (const char *, struct stat64 *);
+extern int __syscall_stat64 (const char *__unbounded, struct stat64 *__unbounded);
 # if  __ASSUME_STAT64_SYSCALL == 0
 /* The variable is shared between all wrappers around *stat64 calls.
    This is the definition.  */
@@ -47,7 +49,7 @@ int
 __xstat64 (int vers, const char *name, struct stat64 *buf)
 {
 #if __ASSUME_STAT64_SYSCALL > 0
-  return INLINE_SYSCALL (stat64, 2, name, buf);
+  return INLINE_SYSCALL (stat64, 2, CHECK_STRING (name), CHECK_1 (buf));
 #else
   struct kernel_stat kbuf;
   int result;
@@ -55,7 +57,7 @@ __xstat64 (int vers, const char *name, struct stat64 *buf)
   if (! __have_no_stat64)
     {
       int saved_errno = errno;
-      result = INLINE_SYSCALL (stat64, 2, name, buf);
+      result = INLINE_SYSCALL (stat64, 2, CHECK_STRING (name), CHECK_1 (buf));
 
       if (result != -1 || errno != ENOSYS)
 	return result;
@@ -65,7 +67,7 @@ __xstat64 (int vers, const char *name, struct stat64 *buf)
     }
 # endif
 
-  result = INLINE_SYSCALL (stat, 2, name, &kbuf);
+  result = INLINE_SYSCALL (stat, 2, CHECK_STRING (name), __ptrvalue (&kbuf));
   if (result == 0)
     result = xstat64_conv (vers, &kbuf, buf);
 
diff --git a/sysdeps/unix/xstat.c b/sysdeps/unix/xstat.c
index f0250150f8..b444457312 100644
--- a/sysdeps/unix/xstat.c
+++ b/sysdeps/unix/xstat.c
@@ -1,5 +1,5 @@
 /* xstat using old-style Unix stat system call.
-   Copyright (C) 1991, 1995, 1996, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1991, 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -20,8 +20,9 @@
 #include <errno.h>
 #include <stddef.h>
 #include <sys/stat.h>
+#include <bp-checks.h>
 
-extern int __syscall_stat (const char *, struct stat *);
+extern int __syscall_stat (const char *__unbounded, struct stat *__unbounded);
 
 int
 __xstat (int vers, const char *file, struct stat *buf)
@@ -32,6 +33,6 @@ __xstat (int vers, const char *file, struct stat *buf)
       return -1;
     }
 
-  return __syscall_stat (file, buf);
+  return __syscall_stat (CHECK_STRING (file), CHECK_1 (buf));
 }
 weak_alias (__xstat, _xstat)