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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
This commit is contained in:
aliguori 2008-11-18 20:50:36 +00:00
parent 6e140f28c6
commit dde2367e20
2 changed files with 17 additions and 0 deletions
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13
cpu-exec.c
View File

@ -183,6 +183,16 @@ static inline TranslationBlock *tb_find_fast(void)
return tb;
}
static CPUDebugExcpHandler *debug_excp_handler;
CPUDebugExcpHandler *cpu_set_debug_excp_handler(CPUDebugExcpHandler *handler)
{
CPUDebugExcpHandler *old_handler = debug_excp_handler;
debug_excp_handler = handler;
return old_handler;
}
static void cpu_handle_debug_exception(CPUState *env)
{
CPUWatchpoint *wp;
@ -190,6 +200,9 @@ static void cpu_handle_debug_exception(CPUState *env)
if (!env->watchpoint_hit)
for (wp = env->watchpoints; wp != NULL; wp = wp->next)
wp->flags &= ~BP_WATCHPOINT_HIT;
if (debug_excp_handler)
debug_excp_handler(env);
}
/* main execution loop */

4
exec-all.h
View File

@ -387,4 +387,8 @@ static inline int kqemu_is_ok(CPUState *env)
}
#endif
typedef void (CPUDebugExcpHandler)(CPUState *env);
CPUDebugExcpHandler *cpu_set_debug_excp_handler(CPUDebugExcpHandler *handler);
#endif