diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/ptrace.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/ptrace.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/ptrace.c b/sysdeps/unix/sysv/linux/ptrace.c new file mode 100644 index 0000000000..2c04830c42 --- /dev/null +++ b/sysdeps/unix/sysv/linux/ptrace.c @@ -0,0 +1,45 @@ +/* Copyright (C) 1995, 1996 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/ptrace.h> +#include <sys/syscall.h> + +int +ptrace (int request, int pid, int addr, int data) +{ + long int ret; + long int res; + if (request > 0 && request < 4) + (long int *) data = &ret; + + res = __syscall_ptrace (request, pid, addr, data); + + if (res >= 0) + { + if (request > 0 && request < 4) + { + errno = 0; + return (ret); + } + return (int) res; + } + + errno = -res; + return -1; +} |