qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
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bpt_helper.c (1172B)

      1 /*
      2  *  i386 breakpoint helpers
      3  *
      4  *  Copyright (c) 2003 Fabrice Bellard
      5  *
      6  * This library is free software; you can redistribute it and/or
      7  * modify it under the terms of the GNU Lesser General Public
      8  * License as published by the Free Software Foundation; either
      9  * version 2.1 of the License, or (at your option) any later version.
     10  *
     11  * This library is distributed in the hope that it will be useful,
     12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14  * Lesser General Public License for more details.
     15  *
     16  * You should have received a copy of the GNU Lesser General Public
     17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
     18  */
     19 
     20 #include "qemu/osdep.h"
     21 #include "cpu.h"
     22 #include "exec/helper-proto.h"
     23 #include "helper-tcg.h"
     24 
     25 G_NORETURN void helper_single_step(CPUX86State *env)
     26 {
     27 #ifndef CONFIG_USER_ONLY
     28     check_hw_breakpoints(env, true);
     29     env->dr[6] |= DR6_BS;
     30 #endif
     31     raise_exception(env, EXCP01_DB);
     32 }
     33 
     34 void helper_rechecking_single_step(CPUX86State *env)
     35 {
     36     if ((env->eflags & TF_MASK) != 0) {
     37         helper_single_step(env);
     38     }
     39 }