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[PATCH v3 1/8] plugins: prepare introduction of new inline ops


From: Pierrick Bouvier
Subject: [PATCH v3 1/8] plugins: prepare introduction of new inline ops
Date: Mon, 25 Mar 2024 16:41:44 +0400

Until now, only add_u64 was available, and all functions assumed this or
were named uniquely.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
---
 include/qemu/plugin.h  |  2 +-
 accel/tcg/plugin-gen.c |  6 +++---
 plugins/core.c         | 14 ++++++++++++--
 3 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/include/qemu/plugin.h b/include/qemu/plugin.h
index 201889cbeec..23271fbe36a 100644
--- a/include/qemu/plugin.h
+++ b/include/qemu/plugin.h
@@ -68,7 +68,7 @@ union qemu_plugin_cb_sig {
 enum plugin_dyn_cb_type {
     PLUGIN_CB_REGULAR,
     PLUGIN_CB_MEM_REGULAR,
-    PLUGIN_CB_INLINE,
+    PLUGIN_CB_INLINE_ADD_U64,
 };
 
 /*
diff --git a/accel/tcg/plugin-gen.c b/accel/tcg/plugin-gen.c
index c3548257798..41d4d83f547 100644
--- a/accel/tcg/plugin-gen.c
+++ b/accel/tcg/plugin-gen.c
@@ -120,7 +120,7 @@ static void gen_udata_cb(struct qemu_plugin_dyn_cb *cb)
     tcg_temp_free_i32(cpu_index);
 }
 
-static void gen_inline_cb(struct qemu_plugin_dyn_cb *cb)
+static void gen_inline_add_u64_cb(struct qemu_plugin_dyn_cb *cb)
 {
     GArray *arr = cb->inline_insn.entry.score->data;
     size_t offset = cb->inline_insn.entry.offset;
@@ -165,8 +165,8 @@ static void inject_cb(struct qemu_plugin_dyn_cb *cb)
     case PLUGIN_CB_REGULAR:
         gen_udata_cb(cb);
         break;
-    case PLUGIN_CB_INLINE:
-        gen_inline_cb(cb);
+    case PLUGIN_CB_INLINE_ADD_U64:
+        gen_inline_add_u64_cb(cb);
         break;
     default:
         g_assert_not_reached();
diff --git a/plugins/core.c b/plugins/core.c
index 0213513ec65..a8557b54ff7 100644
--- a/plugins/core.c
+++ b/plugins/core.c
@@ -316,6 +316,16 @@ static struct qemu_plugin_dyn_cb *plugin_get_dyn_cb(GArray 
**arr)
     return &g_array_index(cbs, struct qemu_plugin_dyn_cb, cbs->len - 1);
 }
 
+static enum plugin_dyn_cb_type op_to_cb_type(enum qemu_plugin_op op)
+{
+    switch (op) {
+    case QEMU_PLUGIN_INLINE_ADD_U64:
+        return PLUGIN_CB_INLINE_ADD_U64;
+    default:
+        g_assert_not_reached();
+    }
+}
+
 void plugin_register_inline_op_on_entry(GArray **arr,
                                         enum qemu_plugin_mem_rw rw,
                                         enum qemu_plugin_op op,
@@ -326,7 +336,7 @@ void plugin_register_inline_op_on_entry(GArray **arr,
 
     dyn_cb = plugin_get_dyn_cb(arr);
     dyn_cb->userp = NULL;
-    dyn_cb->type = PLUGIN_CB_INLINE;
+    dyn_cb->type = op_to_cb_type(op);
     dyn_cb->rw = rw;
     dyn_cb->inline_insn.entry = entry;
     dyn_cb->inline_insn.op = op;
@@ -551,7 +561,7 @@ void qemu_plugin_vcpu_mem_cb(CPUState *cpu, uint64_t vaddr,
             cb->regular.f.vcpu_mem(cpu->cpu_index, make_plugin_meminfo(oi, rw),
                                    vaddr, cb->userp);
             break;
-        case PLUGIN_CB_INLINE:
+        case PLUGIN_CB_INLINE_ADD_U64:
             exec_inline_op(cb, cpu->cpu_index);
             break;
         default:
-- 
2.39.2




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