(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.

1 files changed, 111 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/mips/ptrace.c b/sysdeps/unix/sysv/linux/mips/ptrace.c
new file mode 100644
index 0000000000..19d7c2d927
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mips/ptrace.c
@@ -0,0 +1,111 @@
+/* Copyright (C) 1995, 1996, 1997, 1998, 2000, 2002, 2003, 2004
+	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
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include <sgidefs.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>
+#include <sgidefs.h>
+
+#if _MIPS_SIM == _ABIN32
+__extension__ typedef long long int reg_type;
+#else
+typedef long int reg_type;
+#endif
+
+reg_type
+ptrace (enum __ptrace_request request, ...)
+{
+  reg_type res, ret;
+  va_list ap;
+  pid_t pid;
+  void *addr;
+  reg_type data;
+
+  va_start (ap, request);
+  pid = va_arg (ap, pid_t);
+  addr = va_arg (ap, void *);
+  data = va_arg (ap, reg_type);
+  va_end (ap);
+
+  if (request > 0 && request < 4)
+    data = &ret;
+
+#if __BOUNDED_POINTERS__
+  switch (request)
+    {
+    case PTRACE_PEEKTEXT:
+    case PTRACE_PEEKDATA:
+    case PTRACE_PEEKUSER:
+    case PTRACE_POKETEXT:
+    case PTRACE_POKEDATA:
+    case PTRACE_POKEUSER:
+      (void) CHECK_1 ((int *) addr);
+      (void) CHECK_1 ((int *) data);
+      break;
+
+    case PTRACE_GETREGS:
+    case PTRACE_SETREGS:
+      /* 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.  */
+      (void) CHECK_1 ((int *) data);
+      break;
+
+    case PTRACE_GETFPREGS:
+    case PTRACE_SETFPREGS:
+      /* 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.  */
+      (void) CHECK_1 ((int *) data);
+      break;
+
+    case PTRACE_GETFPXREGS:
+    case PTRACE_SETFPXREGS:
+      /* 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.  */
+      (void) CHECK_1 ((int *) data);
+      break;
+
+    case PTRACE_TRACEME:
+    case PTRACE_CONT:
+    case PTRACE_KILL:
+    case PTRACE_SINGLESTEP:
+    case PTRACE_ATTACH:
+    case PTRACE_DETACH:
+    case PTRACE_SYSCALL:
+      /* Neither `data' nor `addr' needs any checks.  */
+      break;
+    };
+#endif
+
+  res = INLINE_SYSCALL (ptrace, 4, request, pid,
+			__ptrvalue (addr), __ptrvalue (data));
+  if (res >= 0 && request > 0 && request < 4)
+    {
+      __set_errno (0);
+      return ret;
+    }
+
+  return res;
+}