plugins: Simplify callback queues

We have qemu_plugin_dyn_cb.type to differentiate the various
callback types, so we do not need to keep them in separate queues.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 11 insertions, 24 deletions

diff --git a/include/qemu/plugin.h b/include/qemu/plugin.h
index 0d0062448b..b679a22bae 100644
--- a/include/qemu/plugin.h
+++ b/include/qemu/plugin.h
@@ -67,15 +67,8 @@ union qemu_plugin_cb_sig {
 };
 
 enum plugin_dyn_cb_type {
-    PLUGIN_CB_INSN,
-    PLUGIN_CB_MEM,
-    PLUGIN_N_CB_TYPES,
-};
-
-enum plugin_dyn_cb_subtype {
     PLUGIN_CB_REGULAR,
     PLUGIN_CB_INLINE,
-    PLUGIN_N_CB_SUBTYPES,
 };
 
 /*
@@ -85,7 +78,7 @@ enum plugin_dyn_cb_subtype {
  */
 struct qemu_plugin_dyn_cb {
     void *userp;
-    enum plugin_dyn_cb_subtype type;
+    enum plugin_dyn_cb_type type;
     /* @rw applies to mem callbacks only (both regular and inline) */
     enum qemu_plugin_mem_rw rw;
     /* fields specific to each dyn_cb type go here */
@@ -107,7 +100,8 @@ struct qemu_plugin_insn {
     GByteArray *data;
     uint64_t vaddr;
     void *haddr;
-    GArray *cbs[PLUGIN_N_CB_TYPES][PLUGIN_N_CB_SUBTYPES];
+    GArray *insn_cbs;
+    GArray *mem_cbs;
     bool calls_helpers;
 
     /* if set, the instruction calls helpers that might access guest memory */
@@ -136,16 +130,9 @@ static inline void qemu_plugin_insn_cleanup_fn(gpointer data)
 
 static inline struct qemu_plugin_insn *qemu_plugin_insn_alloc(void)
 {
-    int i, j;
     struct qemu_plugin_insn *insn = g_new0(struct qemu_plugin_insn, 1);
-    insn->data = g_byte_array_sized_new(4);
 
-    for (i = 0; i < PLUGIN_N_CB_TYPES; i++) {
-        for (j = 0; j < PLUGIN_N_CB_SUBTYPES; j++) {
-            insn->cbs[i][j] = g_array_new(false, false,
-                                          sizeof(struct qemu_plugin_dyn_cb));
-        }
-    }
+    insn->data = g_byte_array_sized_new(4);
     return insn;
 }
 
@@ -162,7 +149,7 @@ struct qemu_plugin_tb {
     /* if set, the TB calls helpers that might access guest memory */
     bool mem_helper;
 
-    GArray *cbs[PLUGIN_N_CB_SUBTYPES];
+    GArray *cbs;
 };
 
 /**
@@ -175,22 +162,22 @@ struct qemu_plugin_insn *qemu_plugin_tb_insn_get(struct qemu_plugin_tb *tb,
                                                  uint64_t pc)
 {
     struct qemu_plugin_insn *insn;
-    int i, j;
 
     if (unlikely(tb->n == tb->insns->len)) {
         struct qemu_plugin_insn *new_insn = qemu_plugin_insn_alloc();
         g_ptr_array_add(tb->insns, new_insn);
     }
+
     insn = g_ptr_array_index(tb->insns, tb->n++);
     g_byte_array_set_size(insn->data, 0);
     insn->calls_helpers = false;
     insn->mem_helper = false;
     insn->vaddr = pc;
-
-    for (i = 0; i < PLUGIN_N_CB_TYPES; i++) {
-        for (j = 0; j < PLUGIN_N_CB_SUBTYPES; j++) {
-            g_array_set_size(insn->cbs[i][j], 0);
-        }
+    if (insn->insn_cbs) {
+        g_array_set_size(insn->insn_cbs, 0);
+    }
+    if (insn->mem_cbs) {
+        g_array_set_size(insn->mem_cbs, 0);
     }
 
     return insn;