target-xtensa: Move TCG initialization to XtensaCPU initfn

Combine this with breakpoint handler registration, guarding both with
tcg_enabled() to suppress also TCG init for qtest. Rename the handler to
xtensa_breakpoint_handler() since it needs to become global.
Signed-off-by: NAndreas Färber <afaerber@suse.de>

target-xtensa/cpu.c

@@ -71,8 +71,15 @@ static void xtensa_cpu_initfn(Object *obj)
 {
     XtensaCPU *cpu = XTENSA_CPU(obj);
     CPUXtensaState *env = &cpu->env;
+    static bool tcg_inited;
 
     cpu_exec_init(env);
+
+    if (tcg_enabled() && !tcg_inited) {
+        tcg_inited = true;
+        xtensa_translate_init();
+        cpu_set_debug_excp_handler(xtensa_breakpoint_handler);
+    }
 }
 
 static const VMStateDescription vmstate_xtensa_cpu = {

target-xtensa/cpu.h

@@ -385,6 +385,7 @@ static inline CPUXtensaState *cpu_init(const char *cpu_model)
 }
 
 void xtensa_translate_init(void);
+void xtensa_breakpoint_handler(CPUXtensaState *env);
 int cpu_xtensa_exec(CPUXtensaState *s);
 void xtensa_register_core(XtensaConfigList *node);
 void do_interrupt(CPUXtensaState *s);

target-xtensa/helper.c

@@ -54,7 +54,7 @@ static uint32_t check_hw_breakpoints(CPUXtensaState *env)
     return 0;
 }
 
-static void breakpoint_handler(CPUXtensaState *env)
+void xtensa_breakpoint_handler(CPUXtensaState *env)
 {
     if (env->watchpoint_hit) {
         if (env->watchpoint_hit->flags & BP_CPU) {
@@ -72,8 +72,6 @@ static void breakpoint_handler(CPUXtensaState *env)
 
 XtensaCPU *cpu_xtensa_init(const char *cpu_model)
 {
-    static int tcg_inited;
-    static int debug_handler_inited;
     XtensaCPU *cpu;
     CPUXtensaState *env;
     const XtensaConfig *config = NULL;
@@ -93,16 +91,6 @@ XtensaCPU *cpu_xtensa_init(const char *cpu_model)
     env = &cpu->env;
     env->config = config;
 
-    if (!tcg_inited) {
-        tcg_inited = 1;
-        xtensa_translate_init();
-    }
-
-    if (!debug_handler_inited && tcg_enabled()) {
-        debug_handler_inited = 1;
-        cpu_set_debug_excp_handler(breakpoint_handler);
-    }
-
     xtensa_irq_init(env);
 
     object_property_set_bool(OBJECT(cpu), true, "realized", NULL);