vt82c686: Make vt82c686b-pm an abstract base class and add vt8231-pm based on it
[qemu/ar7.git] / tests / plugin / insn.c
blobc253980ec8c234786d7d98ddc916553a1e61b77e
1 /*
2  * Copyright (C) 2018, Emilio G. Cota <cota@braap.org>
3  *
4  * License: GNU GPL, version 2 or later.
5  *   See the COPYING file in the top-level directory.
6  */
7 #include <inttypes.h>
8 #include <assert.h>
9 #include <stdlib.h>
10 #include <string.h>
11 #include <unistd.h>
12 #include <stdio.h>
13 #include <glib.h>
15 #include <qemu-plugin.h>
17 QEMU_PLUGIN_EXPORT int qemu_plugin_version = QEMU_PLUGIN_VERSION;
19 static uint64_t insn_count;
20 static bool do_inline;
22 static void vcpu_insn_exec_before(unsigned int cpu_index, void *udata)
24     static uint64_t last_pc;
25     uint64_t this_pc = GPOINTER_TO_UINT(udata);
26     if (this_pc == last_pc) {
27         g_autofree gchar *out = g_strdup_printf("detected repeat execution @ 0x%"
28                                                 PRIx64 "\n", this_pc);
29         qemu_plugin_outs(out);
30     }
31     last_pc = this_pc;
32     insn_count++;
35 static void vcpu_tb_trans(qemu_plugin_id_t id, struct qemu_plugin_tb *tb)
37     size_t n = qemu_plugin_tb_n_insns(tb);
38     size_t i;
40     for (i = 0; i < n; i++) {
41         struct qemu_plugin_insn *insn = qemu_plugin_tb_get_insn(tb, i);
43         if (do_inline) {
44             qemu_plugin_register_vcpu_insn_exec_inline(
45                 insn, QEMU_PLUGIN_INLINE_ADD_U64, &insn_count, 1);
46         } else {
47             uint64_t vaddr = qemu_plugin_insn_vaddr(insn);
48             qemu_plugin_register_vcpu_insn_exec_cb(
49                 insn, vcpu_insn_exec_before, QEMU_PLUGIN_CB_NO_REGS,
50                 GUINT_TO_POINTER(vaddr));
51         }
52     }
55 static void plugin_exit(qemu_plugin_id_t id, void *p)
57     g_autofree gchar *out = g_strdup_printf("insns: %" PRIu64 "\n", insn_count);
58     qemu_plugin_outs(out);
61 QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id,
62                                            const qemu_info_t *info,
63                                            int argc, char **argv)
65     if (argc && !strcmp(argv[0], "inline")) {
66         do_inline = true;
67     }
69     qemu_plugin_register_vcpu_tb_trans_cb(id, vcpu_tb_trans);
70     qemu_plugin_register_atexit_cb(id, plugin_exit, NULL);
71     return 0;