1: /* Copyright (C) 1991, 92, 93, 95, 96, 97 Free Software Foundation, Inc.
    2:    This file is part of the GNU C Library.
    3: 
    4:    The GNU C Library is free software; you can redistribute it and/or
    5:    modify it under the terms of the GNU Lesser General Public
    6:    License as published by the Free Software Foundation; either
    7:    version 2.1 of the License, or (at your option) any later version.
    8: 
    9:    The GNU C Library is distributed in the hope that it will be useful,
   10:    but WITHOUT ANY WARRANTY; without even the implied warranty of
   11:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   12:    Lesser General Public License for more details.
   13: 
   14:    You should have received a copy of the GNU Lesser General Public
   15:    License along with the GNU C Library; if not, write to the Free
   16:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   17:    02111-1307 USA.  */
   18: 
   19: #include <errno.h>
   20: #include <sys/ptrace.h>
   21: #include <sys/types.h>
   22: #include <stdarg.h>
   23: 
   24: /* Perform process tracing functions.  REQUEST is one of the values
   25:    in <sys/ptrace.h>, and determines the action to be taken.
   26:    For all requests except PTRACE_TRACEME, PID specifies the process to be
   27:    traced.
   28: 
   29:    PID and the other arguments described above for the various requests should
   30:    appear (those that are used for the particular request) as:
   31:      pid_t PID, void *ADDR, int DATA, void *ADDR2
   32:    after PID.  */
   33: int
   34: ptrace (request)
   35:      enum __ptrace_request request;
   36: {
   37:   pid_t pid;
   38:   void *addr;
   39:   void *addr2;
   40:   int data;
   41:   va_list ap;
   42: 
   43:   switch (request)
   44:     {
   45:     case PTRACE_TRACEME:
   46:     case PTRACE_CONT:
   47:     case PTRACE_KILL:
   48:     case PTRACE_SINGLESTEP:
   49:     case PTRACE_ATTACH:
   50:     case PTRACE_DETACH:
   51:       break;
   52: 
   53:     case PTRACE_PEEKTEXT:
   54:     case PTRACE_PEEKDATA:
   55:     case PTRACE_PEEKUSER:
   56:     case PTRACE_GETREGS:
   57:     case PTRACE_SETREGS:
   58: #ifdef PTRACE_GETFPREGS
   59:     case PTRACE_GETFPGEGS:
   60: #endif
   61:     case PTRACE_SETFPREGS:
   62:     case PTRACE_GETFPAREGS:
   63:     case PTRACE_SETFPAREGS:
   64:       va_start(ap, request);
   65:       pid = va_arg(ap, pid_t);
   66:       addr = va_arg(ap, void *);
   67:       va_end(ap);
   68:       break;
   69: 
   70:     case PTRACE_POKETEXT:
   71:     case PTRACE_POKEDATA:
   72:     case PTRACE_POKEUSER:
   73:       va_start(ap, request);
   74:       pid = va_arg(ap, pid_t);
   75:       addr = va_arg(ap, void *);
   76:       data = va_arg(ap, int);
   77:       va_end(ap);
   78:       break;
   79: 
   80:     case PTRACE_READDATA:
   81:     case PTRACE_WRITEDATA:
   82:     case PTRACE_READTEXT:
   83:     case PTRACE_WRITETEXT:
   84:       va_start(ap, request);
   85:       pid = va_arg(ap, pid_t);
   86:       addr = va_arg(ap, void *);
   87:       data = va_arg(ap, int);
   88:       addr2 = va_arg(ap, void *);
   89:       va_end(ap);
   90:       break;
   91: 
   92:     default:
   93:       __set_errno (EINVAL);
   94:       return -1;
   95:     }
   96: 
   97:   __set_errno (ENOSYS);
   98:   return -1;
   99: }
  100: 
  101: 
  102: stub_warning (ptrace)
  103: #include <stub-tag.h>