Add debug exception hook (Jan Kiszka)
This patch allows to hook into the delivery of EXCP_DEBUG so that other use beyond guest debugging becomes possible. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5745 c046a42c-6fe2-441c-8c8c-71466251a162
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cpu-exec.c
13
cpu-exec.c
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@ -183,6 +183,16 @@ static inline TranslationBlock *tb_find_fast(void)
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return tb;
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return tb;
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}
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}
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static CPUDebugExcpHandler *debug_excp_handler;
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CPUDebugExcpHandler *cpu_set_debug_excp_handler(CPUDebugExcpHandler *handler)
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{
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CPUDebugExcpHandler *old_handler = debug_excp_handler;
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debug_excp_handler = handler;
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return old_handler;
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}
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static void cpu_handle_debug_exception(CPUState *env)
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static void cpu_handle_debug_exception(CPUState *env)
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{
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{
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CPUWatchpoint *wp;
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CPUWatchpoint *wp;
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@ -190,6 +200,9 @@ static void cpu_handle_debug_exception(CPUState *env)
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if (!env->watchpoint_hit)
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if (!env->watchpoint_hit)
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for (wp = env->watchpoints; wp != NULL; wp = wp->next)
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for (wp = env->watchpoints; wp != NULL; wp = wp->next)
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wp->flags &= ~BP_WATCHPOINT_HIT;
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wp->flags &= ~BP_WATCHPOINT_HIT;
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if (debug_excp_handler)
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debug_excp_handler(env);
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}
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}
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/* main execution loop */
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/* main execution loop */
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@ -387,4 +387,8 @@ static inline int kqemu_is_ok(CPUState *env)
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}
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}
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#endif
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#endif
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typedef void (CPUDebugExcpHandler)(CPUState *env);
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CPUDebugExcpHandler *cpu_set_debug_excp_handler(CPUDebugExcpHandler *handler);
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#endif
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#endif
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