1 /*
2 * Copyright (C) 2020, Matthias Weckbecker <matthias@weckbecker.name>
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>
14
15 #include <qemu-plugin.h>
16
17 QEMU_PLUGIN_EXPORT int qemu_plugin_version = QEMU_PLUGIN_VERSION;
18
vcpu_syscall(qemu_plugin_id_t id,unsigned int vcpu_index,int64_t num,uint64_t a1,uint64_t a2,uint64_t a3,uint64_t a4,uint64_t a5,uint64_t a6,uint64_t a7,uint64_t a8)19 static void vcpu_syscall(qemu_plugin_id_t id, unsigned int vcpu_index,
20 int64_t num, uint64_t a1, uint64_t a2,
21 uint64_t a3, uint64_t a4, uint64_t a5,
22 uint64_t a6, uint64_t a7, uint64_t a8)
23 {
24 g_autofree gchar *out = g_strdup_printf("syscall #%" PRIi64 "\n", num);
25 qemu_plugin_outs(out);
26 }
27
vcpu_syscall_ret(qemu_plugin_id_t id,unsigned int vcpu_idx,int64_t num,int64_t ret)28 static void vcpu_syscall_ret(qemu_plugin_id_t id, unsigned int vcpu_idx,
29 int64_t num, int64_t ret)
30 {
31 g_autofree gchar *out;
32 out = g_strdup_printf("syscall #%" PRIi64 " returned -> %" PRIi64 "\n",
33 num, ret);
34 qemu_plugin_outs(out);
35 }
36
37 /* ************************************************************************* */
38
plugin_exit(qemu_plugin_id_t id,void * p)39 static void plugin_exit(qemu_plugin_id_t id, void *p) {}
40
qemu_plugin_install(qemu_plugin_id_t id,const qemu_info_t * info,int argc,char ** argv)41 QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id,
42 const qemu_info_t *info,
43 int argc, char **argv)
44 {
45 qemu_plugin_register_vcpu_syscall_cb(id, vcpu_syscall);
46 qemu_plugin_register_vcpu_syscall_ret_cb(id, vcpu_syscall_ret);
47 qemu_plugin_register_atexit_cb(id, plugin_exit, NULL);
48 return 0;
49 }
50