| |
| /* |
| This file is part of Valgrind, a dynamic binary instrumentation |
| framework. |
| |
| Copyright (C) 2000-2004 Julian Seward |
| jseward@acm.org |
| |
| This program is free software; you can redistribute it and/or |
| modify it under the terms of the GNU General Public License as |
| published by the Free Software Foundation; either version 2 of the |
| License, or (at your option) any later version. |
| |
| This program 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 |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307, USA. |
| |
| The GNU General Public License is contained in the file COPYING. |
| */ |
| |
| #include "ume.h" |
| |
| void jmp_with_stack(Addr eip, Addr esp) |
| { |
| asm volatile ( |
| "movl %1, %%esp;" // set esp */ |
| "pushl %%eax;" // push esp */ |
| "xorl %%eax,%%eax;" // clear registers |
| "xorl %%ebx,%%ebx;" |
| "xorl %%ecx,%%ecx;" |
| "xorl %%edx,%%edx;" |
| "xorl %%esi,%%esi;" |
| "xorl %%edi,%%edi;" |
| "xorl %%ebp,%%ebp;" |
| "ret" // return into entry |
| : : "a" (eip), "r" (esp)); |
| |
| // we should never get here |
| for(;;) |
| asm volatile("ud2"); |
| } |