target-xtensa: drop usage of prev_debug_excp_handler

Chains of exception handlers are currently unused feature. Dropping it
to be consistent with target-i386 but it may simplify qom-ifying CPU
in future like for target-i386.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
This commit is contained in:
Igor Mammedov 2012-06-21 17:57:19 +02:00
parent 130a038550
commit eeec69dc06

View File

@ -54,8 +54,6 @@ static uint32_t check_hw_breakpoints(CPUXtensaState *env)
return 0;
}
static CPUDebugExcpHandler *prev_debug_excp_handler;
static void breakpoint_handler(CPUXtensaState *env)
{
if (env->watchpoint_hit) {
@ -70,9 +68,6 @@ static void breakpoint_handler(CPUXtensaState *env)
cpu_resume_from_signal(env, NULL);
}
}
if (prev_debug_excp_handler) {
prev_debug_excp_handler(env);
}
}
XtensaCPU *cpu_xtensa_init(const char *cpu_model)
@ -105,8 +100,7 @@ XtensaCPU *cpu_xtensa_init(const char *cpu_model)
if (!debug_handler_inited && tcg_enabled()) {
debug_handler_inited = 1;
prev_debug_excp_handler =
cpu_set_debug_excp_handler(breakpoint_handler);
cpu_set_debug_excp_handler(breakpoint_handler);
}
xtensa_irq_init(env);