cpu: Introduce CPUListState struct

This generalizes {ARM,M68k,Alpha}CPUListState to avoid declaring it for
each target. Place it in cpu-common.h to avoid circular dependencies.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Reviewed-by: NIgor Mammedov <imammedo@redhat.com>
Reviewed-by: NEduardo Habkost <ehabkost@redhat.com>

cpu-common.h

@@ -12,6 +12,18 @@
 #include "bswap.h"
 #include "qemu-queue.h"
 
+/**
+ * CPUListState:
+ * @cpu_fprintf: Print function.
+ * @file: File to print to using @cpu_fprint.
+ *
+ * State commonly used for iterating over CPU models.
+ */
+typedef struct CPUListState {
+    fprintf_function cpu_fprintf;
+    FILE *file;
+} CPUListState;
+
 #if !defined(CONFIG_USER_ONLY)
 
 enum device_endian {

target-alpha/cpu.c

@@ -33,11 +33,6 @@ static void alpha_cpu_realize(Object *obj, Error **errp)
 #endif
 }
 
-typedef struct AlphaCPUListState {
-    fprintf_function cpu_fprintf;
-    FILE *file;
-} AlphaCPUListState;
-
 /* Sort alphabetically by type name. */
 static gint alpha_cpu_list_compare(gconstpointer a, gconstpointer b)
 {
@@ -53,7 +48,7 @@ static gint alpha_cpu_list_compare(gconstpointer a, gconstpointer b)
 static void alpha_cpu_list_entry(gpointer data, gpointer user_data)
 {
     ObjectClass *oc = data;
-    AlphaCPUListState *s = user_data;
+    CPUListState *s = user_data;
 
     (*s->cpu_fprintf)(s->file, "  %s\n",
                       object_class_get_name(oc));
@@ -61,7 +56,7 @@ static void alpha_cpu_list_entry(gpointer data, gpointer user_data)
 
 void alpha_cpu_list(FILE *f, fprintf_function cpu_fprintf)
 {
-    AlphaCPUListState s = {
+    CPUListState s = {
         .file = f,
         .cpu_fprintf = cpu_fprintf,
     };

target-arm/helper.c

@@ -1291,11 +1291,6 @@ ARMCPU *cpu_arm_init(const char *cpu_model)
     return cpu;
 }
 
-typedef struct ARMCPUListState {
-    fprintf_function cpu_fprintf;
-    FILE *file;
-} ARMCPUListState;
-
 /* Sort alphabetically by type name, except for "any". */
 static gint arm_cpu_list_compare(gconstpointer a, gconstpointer b)
 {
@@ -1317,7 +1312,7 @@ static gint arm_cpu_list_compare(gconstpointer a, gconstpointer b)
 static void arm_cpu_list_entry(gpointer data, gpointer user_data)
 {
     ObjectClass *oc = data;
-    ARMCPUListState *s = user_data;
+    CPUListState *s = user_data;
 
     (*s->cpu_fprintf)(s->file, "  %s\n",
                       object_class_get_name(oc));
@@ -1325,7 +1320,7 @@ static void arm_cpu_list_entry(gpointer data, gpointer user_data)
 
 void arm_cpu_list(FILE *f, fprintf_function cpu_fprintf)
 {
-    ARMCPUListState s = {
+    CPUListState s = {
         .file = f,
         .cpu_fprintf = cpu_fprintf,
     };

target-m68k/helper.c

@@ -25,11 +25,6 @@
 
 #define SIGNBIT (1u << 31)
 
-typedef struct M68kCPUListState {
-    fprintf_function cpu_fprintf;
-    FILE *file;
-} M68kCPUListState;
-
 /* Sort alphabetically, except for "any". */
 static gint m68k_cpu_list_compare(gconstpointer a, gconstpointer b)
 {
@@ -51,7 +46,7 @@ static gint m68k_cpu_list_compare(gconstpointer a, gconstpointer b)
 static void m68k_cpu_list_entry(gpointer data, gpointer user_data)
 {
     ObjectClass *c = data;
-    M68kCPUListState *s = user_data;
+    CPUListState *s = user_data;
 
     (*s->cpu_fprintf)(s->file, "%s\n",
                       object_class_get_name(c));
@@ -59,7 +54,7 @@ static void m68k_cpu_list_entry(gpointer data, gpointer user_data)
 
 void m68k_cpu_list(FILE *f, fprintf_function cpu_fprintf)
 {
-    M68kCPUListState s = {
+    CPUListState s = {
         .file = f,
         .cpu_fprintf = cpu_fprintf,
     };