diff --git a/async.c b/async.c
index 72d268a..8c4ec5b 100644
--- a/async.c
+++ b/async.c
@@ -118,7 +118,7 @@ void qemu_bh_delete(QEMUBH *bh)
 }
 
 static gboolean
-aio_ctx_prepare(GSource *source, gint    *timeout)
+aio_ctx_prepare(GSource *source, int *timeout)
 {
     AioContext *ctx = (AioContext *) source;
     QEMUBH *bh;
@@ -156,9 +156,7 @@ aio_ctx_check(GSource *source)
 }
 
 static gboolean
-aio_ctx_dispatch(GSource     *source,
-                 GSourceFunc  callback,
-                 gpointer     user_data)
+aio_ctx_dispatch(GSource *source, GSourceFunc callback, void *user_data)
 {
     AioContext *ctx = (AioContext *) source;
 
diff --git a/coroutine-gthread.c b/coroutine-gthread.c
index d3e5b99..373d8c0 100644
--- a/coroutine-gthread.c
+++ b/coroutine-gthread.c
@@ -50,7 +50,7 @@ static inline void init_coroutine_cond(void)
  * thread exit / coroutine key update using the free_on_thread_exit
  * field.
  */
-static void coroutine_destroy_notify(gpointer data)
+static void coroutine_destroy_notify(void *data)
 {
     CoroutineGThread *co = data;
     if (co && co->free_on_thread_exit) {
@@ -76,7 +76,7 @@ static inline void set_coroutine_key(CoroutineGThread *co,
     g_private_replace(&coroutine_key, co);
 }
 
-static inline GThread *create_thread(GThreadFunc func, gpointer data)
+static inline GThread *create_thread(GThreadFunc func, void *data)
 {
     return g_thread_new("coroutine", func, data);
 }
@@ -104,7 +104,7 @@ static inline void set_coroutine_key(CoroutineGThread *co,
                          free_on_thread_exit ? (GDestroyNotify)g_free : NULL);
 }
 
-static inline GThread *create_thread(GThreadFunc func, gpointer data)
+static inline GThread *create_thread(GThreadFunc func, void *data)
 {
     return g_thread_create_full(func, data, 0, TRUE, TRUE,
                                 G_THREAD_PRIORITY_NORMAL, NULL);
@@ -141,7 +141,7 @@ static void coroutine_wait_runnable(CoroutineGThread *co)
     g_static_mutex_unlock(&coroutine_lock);
 }
 
-static gpointer coroutine_thread(gpointer opaque)
+static void *coroutine_thread(void *opaque)
 {
     CoroutineGThread *co = opaque;
 
diff --git a/hw/9pfs/virtio-9p-coth.c b/hw/9pfs/virtio-9p-coth.c
index ae6cde8..1475b00 100644
--- a/hw/9pfs/virtio-9p-coth.c
+++ b/hw/9pfs/virtio-9p-coth.c
@@ -41,7 +41,7 @@ static void v9fs_qemu_process_req_done(void *arg)
     }
 }
 
-static void v9fs_thread_routine(gpointer data, gpointer user_data)
+static void v9fs_thread_routine(void *data, void *user_data)
 {
     ssize_t len;
     char byte = 0;
diff --git a/hw/fw_cfg.c b/hw/fw_cfg.c
index 7c9480c..b5d6df9 100644
--- a/hw/fw_cfg.c
+++ b/hw/fw_cfg.c
@@ -67,12 +67,12 @@ static char *read_splashfile(char *filename, int *file_sizep, int *file_typep)
 {
     GError *err = NULL;
     gboolean res;
-    gchar *content;
+    char *content;
     int file_type = -1;
     unsigned int filehead = 0;
     int bmp_bpp;
 
-    res = g_file_get_contents(filename, &content, (gsize *)file_sizep, &err);
+    res = g_file_get_contents(filename, &content, (size_t *)file_sizep, &err);
     if (res == FALSE) {
         error_report("failed to read splash file '%s'", filename);
         g_error_free(err);
diff --git a/hw/qdev-monitor.c b/hw/qdev-monitor.c
index 93283ee..ee14446 100644
--- a/hw/qdev-monitor.c
+++ b/hw/qdev-monitor.c
@@ -474,7 +474,7 @@ DeviceState *qdev_device_add(QemuOpts *opts)
                                   OBJECT(qdev), NULL);
     } else {
         static int anon_count;
-        gchar *name = g_strdup_printf("device[%d]", anon_count++);
+        char *name = g_strdup_printf("device[%d]", anon_count++);
         object_property_add_child(qdev_get_peripheral_anon(), name,
                                   OBJECT(qdev), NULL);
         g_free(name);
diff --git a/hw/qdev.c b/hw/qdev.c
index 9761016..49610ab 100644
--- a/hw/qdev.c
+++ b/hw/qdev.c
@@ -567,7 +567,7 @@ static void qdev_set_legacy_property(Object *obj, Visitor *v, void *opaque,
 void qdev_property_add_legacy(DeviceState *dev, Property *prop,
                               Error **errp)
 {
-    gchar *name, *type;
+    char *name, *type;
 
     /* Register pointer properties as legacy properties */
     if (!prop->info->print && !prop->info->parse &&
@@ -653,7 +653,7 @@ static void device_set_realized(Object *obj, bool value, Error **err)
 
         if (!obj->parent && local_err == NULL) {
             static int unattached_count;
-            gchar *name = g_strdup_printf("device[%d]", unattached_count++);
+            char *name = g_strdup_printf("device[%d]", unattached_count++);
 
             object_property_add_child(container_get(qdev_get_machine(),
                                                     "/unattached"),
diff --git a/hw/xen_disk.c b/hw/xen_disk.c
index 7fea871..1037a80 100644
--- a/hw/xen_disk.c
+++ b/hw/xen_disk.c
@@ -151,14 +151,14 @@ static void ioreq_reset(struct ioreq *ioreq)
     qemu_iovec_reset(&ioreq->v);
 }
 
-static gint int_cmp(gconstpointer a, gconstpointer b, gpointer user_data)
+static int int_cmp(const void *a, const void *b, void *user_data)
 {
     uint ua = GPOINTER_TO_UINT(a);
     uint ub = GPOINTER_TO_UINT(b);
     return (ua > ub) - (ua < ub);
 }
 
-static void destroy_grant(gpointer pgnt)
+static void destroy_grant(void *pgnt)
 {
     PersistentGrant *grant = pgnt;
     XenGnttab gnt = grant->blkdev->xendev.gnttabdev;
diff --git a/include/qom/object.h b/include/qom/object.h
index 1ef2f0e..8e4ffca 100644
--- a/include/qom/object.h
+++ b/include/qom/object.h
@@ -219,8 +219,8 @@ typedef void (ObjectPropertyRelease)(Object *obj,
 
 typedef struct ObjectProperty
 {
-    gchar *name;
-    gchar *type;
+    char *name;
+    char *type;
     ObjectPropertyAccessor *get;
     ObjectPropertyAccessor *set;
     ObjectPropertyRelease *release;
@@ -842,7 +842,7 @@ Object *object_get_root(void);
  * Returns: The canonical path for a object.  This is the path within the
  * composition tree starting from the root.
  */
-gchar *object_get_canonical_path(Object *obj);
+char *object_get_canonical_path(Object *obj);
 
 /**
  * object_resolve_path:
@@ -900,7 +900,7 @@ Object *object_resolve_path_type(const char *path, const char *typename,
  *
  * Returns: The resolved object or NULL on path lookup failure.
  */
-Object *object_resolve_path_component(Object *parent, const gchar *part);
+Object *object_resolve_path_component(Object *parent, const char *part);
 
 /**
  * object_property_add_child:
diff --git a/main-loop.c b/main-loop.c
index 6f52ac3..5f22537 100644
--- a/main-loop.c
+++ b/main-loop.c
@@ -333,7 +333,7 @@ static int os_host_main_loop_wait(uint32_t timeout)
     int select_ret, g_poll_ret, ret, i;
     PollingEntry *pe;
     WaitObjects *w = &wait_objects;
-    gint poll_timeout;
+    int poll_timeout;
     static struct timeval tv0;
 
     /* XXX: need to suppress polling by better using win32 events */
diff --git a/qapi/opts-visitor.c b/qapi/opts-visitor.c
index 174bd8b..590561a 100644
--- a/qapi/opts-visitor.c
+++ b/qapi/opts-visitor.c
@@ -47,7 +47,7 @@ struct OptsVisitor
 
 
 static void
-destroy_list(gpointer list)
+destroy_list(void *list)
 {
   g_queue_free(list);
 }
@@ -66,11 +66,11 @@ opts_visitor_insert(GHashTable *unprocessed_opts, const QemuOpt *opt)
          * "key_destroy_func" in opts_start_struct(). Thus cast away key
          * const-ness in order to suppress gcc's warning.
          */
-        g_hash_table_insert(unprocessed_opts, (gpointer)opt->name, list);
+        g_hash_table_insert(unprocessed_opts, (void *)opt->name, list);
     }
 
     /* Similarly, destroy_list() doesn't call g_queue_free_full(). */
-    g_queue_push_tail(list, (gpointer)opt);
+    g_queue_push_tail(list, (void *)opt);
 }
 
 
@@ -106,7 +106,7 @@ opts_start_struct(Visitor *v, void **obj, const char *kind,
 
 
 static gboolean
-ghr_true(gpointer ign_key, gpointer ign_value, gpointer ign_user_data)
+ghr_true(void *ign_key, void *ign_value, void *ign_user_data)
 {
     return TRUE;
 }
diff --git a/qapi/qmp-input-visitor.c b/qapi/qmp-input-visitor.c
index 67fb127..bac1ed3 100644
--- a/qapi/qmp-input-visitor.c
+++ b/qapi/qmp-input-visitor.c
@@ -62,7 +62,7 @@ static QObject *qmp_input_get_object(QmpInputVisitor *qiv,
 static void qdict_add_key(const char *key, QObject *obj, void *opaque)
 {
     GHashTable *h = opaque;
-    g_hash_table_insert(h, (gpointer) key, NULL);
+    g_hash_table_insert(h, (void *) key, NULL);
 }
 
 static void qmp_input_push(QmpInputVisitor *qiv, QObject *obj, Error **errp)
@@ -88,7 +88,7 @@ static void qmp_input_push(QmpInputVisitor *qiv, QObject *obj, Error **errp)
 }
 
 /** Only for qmp_input_pop. */
-static gboolean always_true(gpointer key, gpointer val, gpointer user_pkey)
+static gboolean always_true(void *key, void *val, void *user_pkey)
 {
     *(const char **)user_pkey = (const char *)key;
     return TRUE;
diff --git a/qemu-img.c b/qemu-img.c
index 85d3740..7637411 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -1315,7 +1315,7 @@ static void dump_human_image_info_list(ImageInfoList *list)
     }
 }
 
-static gboolean str_equal_func(gconstpointer a, gconstpointer b)
+static gboolean str_equal_func(const void *a, const void *b)
 {
     return strcmp(a, b) == 0;
 }
@@ -1352,7 +1352,7 @@ static ImageInfoList *collect_image_info_list(const char *filename,
                          filename);
             goto err;
         }
-        g_hash_table_insert(filenames, (gpointer)filename, NULL);
+        g_hash_table_insert(filenames, (void *)filename, NULL);
 
         bs = bdrv_new_open(filename, fmt, BDRV_O_FLAGS | BDRV_O_NO_BACKING,
                            false);
diff --git a/qga/channel-posix.c b/qga/channel-posix.c
index e65dda3..7ce8de0 100644
--- a/qga/channel-posix.c
+++ b/qga/channel-posix.c
@@ -20,13 +20,13 @@ struct GAChannel {
     GIOChannel *client_channel;
     GAChannelMethod method;
     GAChannelCallback event_cb;
-    gpointer user_data;
+    void *user_data;
 };
 
 static int ga_channel_client_add(GAChannel *c, int fd);
 
 static gboolean ga_channel_listen_accept(GIOChannel *channel,
-                                         GIOCondition condition, gpointer data)
+                                         GIOCondition condition, void *data)
 {
     GAChannel *c = data;
     int ret, client_fd;
@@ -91,7 +91,7 @@ static void ga_channel_client_close(GAChannel *c)
 }
 
 static gboolean ga_channel_client_event(GIOChannel *channel,
-                                        GIOCondition condition, gpointer data)
+                                        GIOCondition condition, void *data)
 {
     GAChannel *c = data;
     gboolean client_cont;
@@ -127,7 +127,7 @@ static int ga_channel_client_add(GAChannel *c, int fd)
     return 0;
 }
 
-static gboolean ga_channel_open(GAChannel *c, const gchar *path, GAChannelMethod method)
+static gboolean ga_channel_open(GAChannel *c, const char *path, GAChannelMethod method)
 {
     int ret;
     c->method = method;
@@ -210,10 +210,10 @@ static gboolean ga_channel_open(GAChannel *c, const gchar *path, GAChannelMethod
     return true;
 }
 
-GIOStatus ga_channel_write_all(GAChannel *c, const gchar *buf, gsize size)
+GIOStatus ga_channel_write_all(GAChannel *c, const char *buf, size_t size)
 {
     GError *err = NULL;
-    gsize written = 0;
+    size_t written = 0;
     GIOStatus status = G_IO_STATUS_NORMAL;
 
     while (size) {
@@ -241,13 +241,13 @@ GIOStatus ga_channel_write_all(GAChannel *c, const gchar *buf, gsize size)
     return status;
 }
 
-GIOStatus ga_channel_read(GAChannel *c, gchar *buf, gsize size, gsize *count)
+GIOStatus ga_channel_read(GAChannel *c, char *buf, size_t size, size_t *count)
 {
     return g_io_channel_read_chars(c->client_channel, buf, size, count, NULL);
 }
 
-GAChannel *ga_channel_new(GAChannelMethod method, const gchar *path,
-                          GAChannelCallback cb, gpointer opaque)
+GAChannel *ga_channel_new(GAChannelMethod method, const char *path,
+                          GAChannelCallback cb, void *opaque)
 {
     GAChannel *c = g_malloc0(sizeof(GAChannel));
     c->event_cb = cb;
diff --git a/qga/channel-win32.c b/qga/channel-win32.c
index 16bf44a..e5e375a 100644
--- a/qga/channel-win32.c
+++ b/qga/channel-win32.c
@@ -9,7 +9,7 @@
 #include "qga/channel.h"
 
 typedef struct GAChannelReadState {
-    guint thread_id;
+    unsigned thread_id;
     uint8_t *buf;
     size_t buf_size;
     size_t cur; /* current buffer start */
@@ -21,7 +21,7 @@ typedef struct GAChannelReadState {
 struct GAChannel {
     HANDLE handle;
     GAChannelCallback cb;
-    gpointer user_data;
+    void *user_data;
     GAChannelReadState rstate;
     GIOCondition pending_events; /* TODO: use GAWatch.pollfd.revents */
     GSource *source;
@@ -38,7 +38,7 @@ typedef struct GAWatch {
  * Called by glib prior to polling to set up poll events if polling is needed.
  *
  */
-static gboolean ga_channel_prepare(GSource *source, gint *timeout_ms)
+static gboolean ga_channel_prepare(GSource *source, int *timeout_ms)
 {
     GAWatch *watch = (GAWatch *)source;
     GAChannel *c = (GAChannel *)watch->channel;
@@ -153,7 +153,7 @@ static gboolean ga_channel_check(GSource *source)
  * Called by glib after either prepare or check routines signal readiness
  */
 static gboolean ga_channel_dispatch(GSource *source, GSourceFunc unused,
-                                    gpointer user_data)
+                                    void *user_data)
 {
     GAWatch *watch = (GAWatch *)source;
     GAChannel *c = (GAChannel *)watch->channel;
@@ -196,13 +196,13 @@ static GSource *ga_channel_create_watch(GAChannel *c)
     GAWatch *watch = (GAWatch *)source;
 
     watch->channel = c;
-    watch->pollfd.fd = (gintptr) c->rstate.ov.hEvent;
+    watch->pollfd.fd = (int *) c->rstate.ov.hEvent;
     g_source_add_poll(source, &watch->pollfd);
 
     return source;
 }
 
-GIOStatus ga_channel_read(GAChannel *c, char *buf, size_t size, gsize *count)
+GIOStatus ga_channel_read(GAChannel *c, char *buf, size_t size, size_t *count)
 {
     GAChannelReadState *rs = &c->rstate;
     GIOStatus status;
@@ -285,7 +285,7 @@ GIOStatus ga_channel_write_all(GAChannel *c, const char *buf, size_t size)
 }
 
 static gboolean ga_channel_open(GAChannel *c, GAChannelMethod method,
-                                const gchar *path)
+                                const char *path)
 {
     if (!method == GA_CHANNEL_VIRTIO_SERIAL) {
         g_critical("unsupported communication method");
@@ -303,8 +303,8 @@ static gboolean ga_channel_open(GAChannel *c, GAChannelMethod method,
     return true;
 }
 
-GAChannel *ga_channel_new(GAChannelMethod method, const gchar *path,
-                          GAChannelCallback cb, gpointer opaque)
+GAChannel *ga_channel_new(GAChannelMethod method, const char *path,
+                          GAChannelCallback cb, void *opaque)
 {
     GAChannel *c = g_malloc0(sizeof(GAChannel));
     SECURITY_ATTRIBUTES sec_attrs;
diff --git a/qga/channel.h b/qga/channel.h
index 3704ea9..494ef91 100644
--- a/qga/channel.h
+++ b/qga/channel.h
@@ -22,12 +22,12 @@ typedef enum {
     GA_CHANNEL_UNIX_LISTEN,
 } GAChannelMethod;
 
-typedef gboolean (*GAChannelCallback)(GIOCondition condition, gpointer opaque);
+typedef gboolean (*GAChannelCallback)(GIOCondition condition, void *opaque);
 
-GAChannel *ga_channel_new(GAChannelMethod method, const gchar *path,
-                          GAChannelCallback cb, gpointer opaque);
+GAChannel *ga_channel_new(GAChannelMethod method, const char *path,
+                          GAChannelCallback cb, void *opaque);
 void ga_channel_free(GAChannel *c);
-GIOStatus ga_channel_read(GAChannel *c, gchar *buf, gsize size, gsize *count);
-GIOStatus ga_channel_write_all(GAChannel *c, const gchar *buf, gsize size);
+GIOStatus ga_channel_read(GAChannel *c, char *buf, size_t size, size_t *count);
+GIOStatus ga_channel_write_all(GAChannel *c, const char *buf, size_t size);
 
 #endif
diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index 77f6ee7..3136a8c 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -214,7 +214,7 @@ struct GuestFileRead *qmp_guest_file_read(int64_t handle, bool has_count,
 {
     GuestFileHandle *gfh = guest_file_handle_find(handle, err);
     GuestFileRead *read_data = NULL;
-    guchar *buf;
+    unsigned char *buf;
     FILE *fh;
     size_t read_count;
 
@@ -255,8 +255,8 @@ GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64,
                                      bool has_count, int64_t count, Error **err)
 {
     GuestFileWrite *write_data = NULL;
-    guchar *buf;
-    gsize buf_len;
+    unsigned char *buf;
+    size_t buf_len;
     int write_count;
     GuestFileHandle *gfh = guest_file_handle_find(handle, err);
     FILE *fh;
diff --git a/qga/commands.c b/qga/commands.c
index 7ffb35e..4dca315 100644
--- a/qga/commands.c
+++ b/qga/commands.c
@@ -20,7 +20,7 @@
  * to log for accounting purposes, check ga_logging_enabled() beforehand,
  * and use the QERR_QGA_LOGGING_DISABLED to generate an error
  */
-void slog(const gchar *fmt, ...)
+void slog(const char *fmt, ...)
 {
     va_list ap;
 
diff --git a/qga/guest-agent-command-state.c b/qga/guest-agent-command-state.c
index 969da23..c30df1c 100644
--- a/qga/guest-agent-command-state.c
+++ b/qga/guest-agent-command-state.c
@@ -33,7 +33,7 @@ void ga_command_state_add(GACommandState *cs,
     cs->groups = g_slist_append(cs->groups, cg);
 }
 
-static void ga_command_group_init(gpointer opaque, gpointer unused)
+static void ga_command_group_init(void *opaque, void *unused)
 {
     GACommandGroup *cg = opaque;
 
@@ -49,7 +49,7 @@ void ga_command_state_init_all(GACommandState *cs)
     g_slist_foreach(cs->groups, ga_command_group_init, NULL);
 }
 
-static void ga_command_group_cleanup(gpointer opaque, gpointer unused)
+static void ga_command_group_cleanup(void *opaque, void *unused)
 {
     GACommandGroup *cg = opaque;
 
diff --git a/qga/guest-agent-core.h b/qga/guest-agent-core.h
index 3354598..3a4c947 100644
--- a/qga/guest-agent-core.h
+++ b/qga/guest-agent-core.h
@@ -29,7 +29,7 @@ GACommandState *ga_command_state_new(void);
 bool ga_logging_enabled(GAState *s);
 void ga_disable_logging(GAState *s);
 void ga_enable_logging(GAState *s);
-void slog(const gchar *fmt, ...);
+void slog(const char *fmt, ...);
 void ga_set_response_delimited(GAState *s);
 bool ga_is_frozen(GAState *s);
 void ga_set_frozen(GAState *s);
diff --git a/qga/main.c b/qga/main.c
index db281a5..2c551a6 100644
--- a/qga/main.c
+++ b/qga/main.c
@@ -230,8 +230,8 @@ void ga_enable_logging(GAState *s)
     s->logging_enabled = true;
 }
 
-static void ga_log(const gchar *domain, GLogLevelFlags level,
-                   const gchar *msg, gpointer opaque)
+static void ga_log(const char *domain, GLogLevelFlags level,
+                   const char *msg, void *opaque)
 {
     GAState *s = opaque;
     GTimeVal time;
@@ -314,7 +314,7 @@ static bool ga_open_pidfile(const char *pidfile)
 }
 #endif
 
-static gint ga_strcmp(gconstpointer str1, gconstpointer str2)
+static int ga_strcmp(const void *str1, const void *str2)
 {
     return strcmp(str1, str2);
 }
@@ -594,11 +594,11 @@ static void process_event(JSONMessageParser *parser, QList *tokens)
 }
 
 /* false return signals GAChannel to close the current client connection */
-static gboolean channel_event_cb(GIOCondition condition, gpointer data)
+static gboolean channel_event_cb(GIOCondition condition, void *data)
 {
     GAState *s = data;
-    gchar buf[QGA_READ_COUNT_DEFAULT+1];
-    gsize count;
+    char buf[QGA_READ_COUNT_DEFAULT+1];
+    size_t count;
     GError *err = NULL;
     GIOStatus status = ga_channel_read(s->channel, buf, QGA_READ_COUNT_DEFAULT, &count);
     if (err != NULL) {
@@ -636,7 +636,7 @@ static gboolean channel_event_cb(GIOCondition condition, gpointer data)
     return true;
 }
 
-static gboolean channel_init(GAState *s, const gchar *method, const gchar *path)
+static gboolean channel_init(GAState *s, const char *method, const char *path)
 {
     GAChannelMethod channel_method;
 
diff --git a/qom/container.c b/qom/container.c
index 62b1648..c8e652a 100644
--- a/qom/container.c
+++ b/qom/container.c
@@ -28,7 +28,7 @@ static void container_register_types(void)
 Object *container_get(Object *root, const char *path)
 {
     Object *obj, *child;
-    gchar **parts;
+    char **parts;
     int i;
 
     parts = g_strsplit(path, "/", 0);
diff --git a/qom/object.c b/qom/object.c
index 03e6f24..8fbfff4 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -540,8 +540,8 @@ typedef struct OCFData
     void *opaque;
 } OCFData;
 
-static void object_class_foreach_tramp(gpointer key, gpointer value,
-                                       gpointer opaque)
+static void object_class_foreach_tramp(void *key, void *value,
+                                       void *opaque)
 {
     OCFData *data = opaque;
     TypeImpl *type = value;
@@ -868,7 +868,7 @@ static void object_get_child_property(Object *obj, Visitor *v, void *opaque,
                                       const char *name, Error **errp)
 {
     Object *child = opaque;
-    gchar *path;
+    char *path;
 
     path = object_get_canonical_path(child);
     visit_type_str(v, &path, name, errp);
@@ -886,7 +886,7 @@ static void object_finalize_child_property(Object *obj, const char *name,
 void object_property_add_child(Object *obj, const char *name,
                                Object *child, Error **errp)
 {
-    gchar *type;
+    char *type;
 
     type = g_strdup_printf("child<%s>", object_get_typename(OBJECT(child)));
 
@@ -904,14 +904,14 @@ static void object_get_link_property(Object *obj, Visitor *v, void *opaque,
                                      const char *name, Error **errp)
 {
     Object **child = opaque;
-    gchar *path;
+    char *path;
 
     if (*child) {
         path = object_get_canonical_path(*child);
         visit_type_str(v, &path, name, errp);
         g_free(path);
     } else {
-        path = (gchar *)"";
+        path = (char *)"";
         visit_type_str(v, &path, name, errp);
     }
 }
@@ -924,7 +924,7 @@ static void object_set_link_property(Object *obj, Visitor *v, void *opaque,
     bool ambiguous = false;
     const char *type;
     char *path;
-    gchar *target_type;
+    char *target_type;
 
     type = object_property_get_type(obj, name, NULL);
 
@@ -967,7 +967,7 @@ void object_property_add_link(Object *obj, const char *name,
                               const char *type, Object **child,
                               Error **errp)
 {
-    gchar *full_type;
+    char *full_type;
 
     full_type = g_strdup_printf("link<%s>", type);
 
@@ -979,7 +979,7 @@ void object_property_add_link(Object *obj, const char *name,
     g_free(full_type);
 }
 
-gchar *object_get_canonical_path(Object *obj)
+char *object_get_canonical_path(Object *obj)
 {
     Object *root = object_get_root();
     char *newpath = NULL, *path = NULL;
@@ -1017,7 +1017,7 @@ gchar *object_get_canonical_path(Object *obj)
     return newpath;
 }
 
-Object *object_resolve_path_component(Object *parent, const gchar *part)
+Object *object_resolve_path_component(Object *parent, const char *part)
 {
     ObjectProperty *prop = object_property_find(parent, part, NULL);
     if (prop == NULL) {
@@ -1034,7 +1034,7 @@ Object *object_resolve_path_component(Object *parent, const gchar *part)
 }
 
 static Object *object_resolve_abs_path(Object *parent,
-                                          gchar **parts,
+                                          char **parts,
                                           const char *typename,
                                           int index)
 {
@@ -1057,7 +1057,7 @@ static Object *object_resolve_abs_path(Object *parent,
 }
 
 static Object *object_resolve_partial_path(Object *parent,
-                                              gchar **parts,
+                                              char **parts,
                                               const char *typename,
                                               bool *ambiguous)
 {
@@ -1098,7 +1098,7 @@ Object *object_resolve_path_type(const char *path, const char *typename,
 {
     bool partial_path = true;
     Object *obj;
-    gchar **parts;
+    char **parts;
 
     parts = g_strsplit(path, "/", 0);
     if (parts == NULL || parts[0] == NULL) {
diff --git a/qtest.c b/qtest.c
index c9b58ce..b865ab5 100644
--- a/qtest.c
+++ b/qtest.c
@@ -187,9 +187,9 @@ static void qtest_irq_handler(void *opaque, int n, int level)
     }
 }
 
-static void qtest_process_command(CharDriverState *chr, gchar **words)
+static void qtest_process_command(CharDriverState *chr, char **words)
 {
-    const gchar *command;
+    const char *command;
 
     g_assert(words);
 
@@ -357,7 +357,7 @@ static void qtest_process_inbuf(CharDriverState *chr, GString *inbuf)
     while ((end = strchr(inbuf->str, '\n')) != NULL) {
         size_t offset;
         GString *cmd;
-        gchar **words;
+        char **words;
 
         offset = end - inbuf->str;
 
@@ -376,7 +376,7 @@ static void qtest_read(void *opaque, const uint8_t *buf, int size)
 {
     CharDriverState *chr = opaque;
 
-    g_string_append_len(inbuf, (const gchar *)buf, size);
+    g_string_append_len(inbuf, (const char *)buf, size);
     qtest_process_inbuf(chr, inbuf);
 }
 
diff --git a/target-alpha/cpu.c b/target-alpha/cpu.c
index 40e9809..049ce02 100644
--- a/target-alpha/cpu.c
+++ b/target-alpha/cpu.c
@@ -32,7 +32,7 @@ static void alpha_cpu_realize(Object *obj, Error **errp)
 }
 
 /* Sort alphabetically by type name. */
-static gint alpha_cpu_list_compare(gconstpointer a, gconstpointer b)
+static int alpha_cpu_list_compare(const void *a, const void *b)
 {
     ObjectClass *class_a = (ObjectClass *)a;
     ObjectClass *class_b = (ObjectClass *)b;
@@ -43,7 +43,7 @@ static gint alpha_cpu_list_compare(gconstpointer a, gconstpointer b)
     return strcmp(name_a, name_b);
 }
 
-static void alpha_cpu_list_entry(gpointer data, gpointer user_data)
+static void alpha_cpu_list_entry(void *data, void *user_data)
 {
     ObjectClass *oc = data;
     CPUListState *s = user_data;
diff --git a/target-arm/cpu.c b/target-arm/cpu.c
index 07588a1..69ac1a2 100644
--- a/target-arm/cpu.c
+++ b/target-arm/cpu.c
@@ -25,7 +25,7 @@
 #endif
 #include "sysemu/sysemu.h"
 
-static void cp_reg_reset(gpointer key, gpointer value, gpointer opaque)
+static void cp_reg_reset(void *key, void *value, void *opaque)
 {
     /* Reset a single ARMCPRegInfo register */
     ARMCPRegInfo *ri = value;
diff --git a/target-arm/helper.c b/target-arm/helper.c
index 37c34a1..ac1f9b3 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -1293,7 +1293,7 @@ ARMCPU *cpu_arm_init(const char *cpu_model)
 }
 
 /* Sort alphabetically by type name, except for "any". */
-static gint arm_cpu_list_compare(gconstpointer a, gconstpointer b)
+static int arm_cpu_list_compare(const void *a, const void *b)
 {
     ObjectClass *class_a = (ObjectClass *)a;
     ObjectClass *class_b = (ObjectClass *)b;
@@ -1310,7 +1310,7 @@ static gint arm_cpu_list_compare(gconstpointer a, gconstpointer b)
     }
 }
 
-static void arm_cpu_list_entry(gpointer data, gpointer user_data)
+static void arm_cpu_list_entry(void *data, void *user_data)
 {
     ObjectClass *oc = data;
     CPUListState *s = user_data;
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 333745b..97ba197 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1585,7 +1585,7 @@ int cpu_x86_register(X86CPU *cpu, const char *cpu_model)
     x86_def_t def1, *def = &def1;
     Error *error = NULL;
     char *name, *features;
-    gchar **model_pieces;
+    char **model_pieces;
 
     memset(def, 0, sizeof(*def));
 
diff --git a/target-m68k/helper.c b/target-m68k/helper.c
index 097fc78..c2c2847 100644
--- a/target-m68k/helper.c
+++ b/target-m68k/helper.c
@@ -26,7 +26,7 @@
 #define SIGNBIT (1u << 31)
 
 /* Sort alphabetically, except for "any". */
-static gint m68k_cpu_list_compare(gconstpointer a, gconstpointer b)
+static int m68k_cpu_list_compare(const void *a, const void *b)
 {
     ObjectClass *class_a = (ObjectClass *)a;
     ObjectClass *class_b = (ObjectClass *)b;
@@ -43,7 +43,7 @@ static gint m68k_cpu_list_compare(gconstpointer a, gconstpointer b)
     }
 }
 
-static void m68k_cpu_list_entry(gpointer data, gpointer user_data)
+static void m68k_cpu_list_entry(void *data, void *user_data)
 {
     ObjectClass *c = data;
     CPUListState *s = user_data;
diff --git a/target-openrisc/cpu.c b/target-openrisc/cpu.c
index 56544d8..b902de8 100644
--- a/target-openrisc/cpu.c
+++ b/target-openrisc/cpu.c
@@ -176,7 +176,7 @@ typedef struct OpenRISCCPUList {
 } OpenRISCCPUList;
 
 /* Sort alphabetically by type name, except for "any". */
-static gint openrisc_cpu_list_compare(gconstpointer a, gconstpointer b)
+static int openrisc_cpu_list_compare(const void *a, const void *b)
 {
     ObjectClass *class_a = (ObjectClass *)a;
     ObjectClass *class_b = (ObjectClass *)b;
@@ -193,7 +193,7 @@ static gint openrisc_cpu_list_compare(gconstpointer a, gconstpointer b)
     }
 }
 
-static void openrisc_cpu_list_entry(gpointer data, gpointer user_data)
+static void openrisc_cpu_list_entry(void *data, void *user_data)
 {
     ObjectClass *oc = data;
     OpenRISCCPUList *s = user_data;
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 3f199c4..f8c8ec9 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -10234,7 +10234,7 @@ static void ppc_cpu_realize(Object *obj, Error **errp)
 #endif
 }
 
-static gint ppc_cpu_compare_class_pvr(gconstpointer a, gconstpointer b)
+static int ppc_cpu_compare_class_pvr(const void *a, const void *b)
 {
     ObjectClass *oc = (ObjectClass *)a;
     uint32_t pvr = *(uint32_t *)b;
@@ -10264,7 +10264,7 @@ PowerPCCPUClass *ppc_cpu_class_by_pvr(uint32_t pvr)
     return pcc;
 }
 
-static gint ppc_cpu_compare_class_name(gconstpointer a, gconstpointer b)
+static int ppc_cpu_compare_class_name(const void *a, const void *b)
 {
     ObjectClass *oc = (ObjectClass *)a;
     const char *name = b;
@@ -10354,7 +10354,7 @@ PowerPCCPU *cpu_ppc_init(const char *cpu_model)
 }
 
 /* Sort by PVR, ordering special case "host" last. */
-static gint ppc_cpu_list_compare(gconstpointer a, gconstpointer b)
+static int ppc_cpu_list_compare(const void *a, const void *b)
 {
     ObjectClass *oc_a = (ObjectClass *)a;
     ObjectClass *oc_b = (ObjectClass *)b;
@@ -10379,7 +10379,7 @@ static gint ppc_cpu_list_compare(gconstpointer a, gconstpointer b)
     }
 }
 
-static void ppc_cpu_list_entry(gpointer data, gpointer user_data)
+static void ppc_cpu_list_entry(void *data, void *user_data)
 {
     ObjectClass *oc = data;
     CPUListState *s = user_data;
@@ -10403,7 +10403,7 @@ void ppc_cpu_list(FILE *f, fprintf_function cpu_fprintf)
     g_slist_free(list);
 }
 
-static void ppc_cpu_defs_entry(gpointer data, gpointer user_data)
+static void ppc_cpu_defs_entry(void *data, void *user_data)
 {
     ObjectClass *oc = data;
     CpuDefinitionInfoList **first = user_data;
@@ -10450,7 +10450,7 @@ static void ppc_cpu_register_model(const ppc_def_t *def)
 
     type_info.name = g_strdup_printf("%s-" TYPE_POWERPC_CPU, def->name),
     type_register(&type_info);
-    g_free((gpointer)type_info.name);
+    g_free((void *)type_info.name);
 }
 
 /* CPUClass::reset() */
diff --git a/tests/libqtest.c b/tests/libqtest.c
index 913fa05..4ec3b6f 100644
--- a/tests/libqtest.c
+++ b/tests/libqtest.c
@@ -39,7 +39,7 @@ struct QTestState
     int qmp_fd;
     bool irq_level[MAX_IRQ];
     GString *rx;
-    gchar *pid_file;
+    char *pid_file;
     char *socket_path, *qmp_socket_path;
 };
 
@@ -105,8 +105,8 @@ QTestState *qtest_init(const char *extra_args)
 {
     QTestState *s;
     int sock, qmpsock, ret, i;
-    gchar *pid_file;
-    gchar *command;
+    char *pid_file;
+    char *command;
     const char *qemu_binary;
     pid_t pid;
 
@@ -179,7 +179,7 @@ void qtest_quit(QTestState *s)
 
 static void socket_sendf(int fd, const char *fmt, va_list ap)
 {
-    gchar *str;
+    char *str;
     size_t size, offset;
 
     str = g_strdup_vprintf(fmt, ap);
@@ -240,10 +240,10 @@ static GString *qtest_recv_line(QTestState *s)
     return line;
 }
 
-static gchar **qtest_rsp(QTestState *s, int expected_args)
+static char **qtest_rsp(QTestState *s, int expected_args)
 {
     GString *line;
-    gchar **words;
+    char **words;
     int i;
 
 redo:
@@ -341,7 +341,7 @@ bool qtest_get_irq(QTestState *s, int num)
 
 static int64_t qtest_clock_rsp(QTestState *s)
 {
-    gchar **words;
+    char **words;
     int64_t clock;
     words = qtest_rsp(s, 2);
     clock = g_ascii_strtoll(words[1], NULL, 0);
@@ -402,7 +402,7 @@ void qtest_outl(QTestState *s, uint16_t addr, uint32_t value)
 
 static uint32_t qtest_in(QTestState *s, const char *cmd, uint16_t addr)
 {
-    gchar **args;
+    char **args;
     uint32_t value;
 
     qtest_sendf(s, "%s 0x%x\n", cmd, addr);
@@ -444,7 +444,7 @@ static int hex2nib(char ch)
 void qtest_memread(QTestState *s, uint64_t addr, void *data, size_t size)
 {
     uint8_t *ptr = data;
-    gchar **args;
+    char **args;
     size_t i;
 
     qtest_sendf(s, "read 0x%" PRIx64 " 0x%zx\n", addr, size);
@@ -460,7 +460,7 @@ void qtest_memread(QTestState *s, uint64_t addr, void *data, size_t size)
 
 void qtest_add_func(const char *str, void (*fn))
 {
-    gchar *path = g_strdup_printf("/%s/%s", qtest_get_arch(), str);
+    char *path = g_strdup_printf("/%s/%s", qtest_get_arch(), str);
     g_test_add_func(path, fn);
 }
 
diff --git a/tests/test-visitor-serialization.c b/tests/test-visitor-serialization.c
index 3c6b8df..256019b 100644
--- a/tests/test-visitor-serialization.c
+++ b/tests/test-visitor-serialization.c
@@ -230,17 +230,17 @@ typedef struct TestArgs {
 } TestArgs;
 
 #define FLOAT_STRING_PRECISION 6 /* corresponding to n in %.nf formatting */
-static gsize calc_float_string_storage(double value)
+static size_t calc_float_string_storage(double value)
 {
     int whole_value = value;
-    gsize i = 0;
+    size_t i = 0;
     do {
         i++;
     } while (whole_value /= 10);
     return i + 2 + FLOAT_STRING_PRECISION;
 }
 
-static void test_primitives(gconstpointer opaque)
+static void test_primitives(const void *opaque)
 {
     TestArgs *args = (TestArgs *) opaque;
     const SerializeOps *ops = args->ops;
@@ -277,7 +277,7 @@ static void test_primitives(gconstpointer opaque)
     g_free(args);
 }
 
-static void test_struct(gconstpointer opaque)
+static void test_struct(const void *opaque)
 {
     TestArgs *args = (TestArgs *) opaque;
     const SerializeOps *ops = args->ops;
@@ -299,7 +299,7 @@ static void test_struct(gconstpointer opaque)
     g_free(args);
 }
 
-static void test_nested_struct(gconstpointer opaque)
+static void test_nested_struct(const void *opaque)
 {
     TestArgs *args = (TestArgs *) opaque;
     const SerializeOps *ops = args->ops;
@@ -321,7 +321,7 @@ static void test_nested_struct(gconstpointer opaque)
     g_free(args);
 }
 
-static void test_nested_struct_list(gconstpointer opaque)
+static void test_nested_struct_list(const void *opaque)
 {
     TestArgs *args = (TestArgs *) opaque;
     const SerializeOps *ops = args->ops;
diff --git a/trace/simple.c b/trace/simple.c
index ce17d64..b6da5d3 100644
--- a/trace/simple.c
+++ b/trace/simple.c
@@ -152,7 +152,7 @@ static void wait_for_trace_records_available(void)
     g_static_mutex_unlock(&trace_lock);
 }
 
-static gpointer writeout_thread(gpointer opaque)
+static void *writeout_thread(void *opaque)
 {
     TraceRecord *recordptr;
     union {
@@ -173,7 +173,7 @@ static gpointer writeout_thread(gpointer opaque)
             dropped.rec.reserved = 0;
             while (1) {
                 dropped_count = dropped_events;
-                if (g_atomic_int_compare_and_exchange((gint *)&dropped_events,
+                if (g_atomic_int_compare_and_exchange((int *)&dropped_events,
                                                       dropped_count, 0)) {
                     break;
                 }
@@ -220,11 +220,11 @@ int trace_record_start(TraceBufferRecord *rec, TraceEventID event, size_t datasi
 
         if (new_idx - writeout_idx > TRACE_BUF_LEN) {
             /* Trace Buffer Full, Event dropped ! */
-            g_atomic_int_inc((gint *)&dropped_events);
+            g_atomic_int_inc((int *)&dropped_events);
             return -ENOSPC;
         }
 
-        if (g_atomic_int_compare_and_exchange((gint *)&trace_idx,
+        if (g_atomic_int_compare_and_exchange((int *)&trace_idx,
                                               old_idx, new_idx)) {
             break;
         }
diff --git a/vl.c b/vl.c
index 8ce2b10..56ac268 100644
--- a/vl.c
+++ b/vl.c
@@ -2641,21 +2641,21 @@ static const QEMUOption *lookup_opt(int argc, char **argv,
     return popt;
 }
 
-static gpointer malloc_and_trace(gsize n_bytes)
+static void *malloc_and_trace(size_t n_bytes)
 {
     void *ptr = malloc(n_bytes);
     trace_g_malloc(n_bytes, ptr);
     return ptr;
 }
 
-static gpointer realloc_and_trace(gpointer mem, gsize n_bytes)
+static void *realloc_and_trace(void *mem, size_t n_bytes)
 {
     void *ptr = realloc(mem, n_bytes);
     trace_g_realloc(mem, n_bytes, ptr);
     return ptr;
 }
 
-static void free_and_trace(gpointer mem)
+static void free_and_trace(void *mem)
 {
     trace_g_free(mem);
     free(mem);