/* * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> * * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ #include <errno.h> #include <sys/types.h> #include <sys/ptrace.h> #include <sys/syscall.h> #include <stdarg.h> #define __NR___syscall_ptrace __NR_ptrace static inline _syscall4(long, __syscall_ptrace, enum __ptrace_request, request, __kernel_pid_t, pid, void*, addr, void*, data); 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 = __syscall_ptrace(request, pid, addr, data); if (res >= 0 && request > 0 && request < 4) { __set_errno(0); return ret; } return res; }