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Diffstat (limited to 'libc/sysdeps/linux/common/ptrace.c')
-rw-r--r--libc/sysdeps/linux/common/ptrace.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/ptrace.c b/libc/sysdeps/linux/common/ptrace.c
new file mode 100644
index 000000000..bc4debdac
--- /dev/null
+++ b/libc/sysdeps/linux/common/ptrace.c
@@ -0,0 +1,51 @@
+/* Copyright (C) 1995, 1996, 1997, 1998 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/ptrace.h>
+#include <stdarg.h>
+
+
+extern long int __ptrace (enum __ptrace_request, pid_t, void *, void *);
+
+long int
+ptrace (enum __ptrace_request request, ...)
+{
+ long int res, ret;
+ va_list ap;
+ pid_t pid;
+ void *addr, *data;
+
+ va_start (ap, request);
+ pid = va_arg (ap, pid_t);
+ addr = va_arg (ap, void *);
+ data = va_arg (ap, void *);
+ va_end (ap);
+
+ if (request > 0 && request < 4)
+ data = &ret;
+
+ res = __ptrace(request, pid, addr, data);
+ if (res >= 0 && request > 0 && request < 4) {
+ __set_errno(0);
+ return ret;
+ }
+
+ return res;
+}