diff options
| -rw-r--r-- | tests/plugin/insn.c | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/tests/plugin/insn.c b/tests/plugin/insn.c index 0f6a193..d229fdc 100644 --- a/tests/plugin/insn.c +++ b/tests/plugin/insn.c @@ -18,6 +18,8 @@ QEMU_PLUGIN_EXPORT int qemu_plugin_version = QEMU_PLUGIN_VERSION; static uint64_t insn_count; static bool do_inline; +static bool do_size; +static GArray *sizes; static void vcpu_insn_exec_before(unsigned int cpu_index, void *udata) { @@ -49,13 +51,35 @@ static void vcpu_tb_trans(qemu_plugin_id_t id, struct qemu_plugin_tb *tb) insn, vcpu_insn_exec_before, QEMU_PLUGIN_CB_NO_REGS, GUINT_TO_POINTER(vaddr)); } + + if (do_size) { + size_t sz = qemu_plugin_insn_size(insn); + if (sz > sizes->len) { + g_array_set_size(sizes, sz); + } + unsigned long *cnt = &g_array_index(sizes, unsigned long, sz); + (*cnt)++; + } } } static void plugin_exit(qemu_plugin_id_t id, void *p) { - g_autofree gchar *out = g_strdup_printf("insns: %" PRIu64 "\n", insn_count); - qemu_plugin_outs(out); + g_autoptr(GString) out = g_string_new(NULL); + + if (do_size) { + int i; + for (i = 0; i <= sizes->len; i++) { + unsigned long *cnt = &g_array_index(sizes, unsigned long, i); + if (*cnt) { + g_string_append_printf(out, + "len %d bytes: %ld insns\n", i, *cnt); + } + } + } else { + g_string_append_printf(out, "insns: %" PRIu64 "\n", insn_count); + } + qemu_plugin_outs(out->str); } QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id, @@ -70,12 +94,21 @@ QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id, fprintf(stderr, "boolean argument parsing failed: %s\n", opt); return -1; } + } else if (g_strcmp0(tokens[0], "sizes") == 0) { + if (!qemu_plugin_bool_parse(tokens[0], tokens[1], &do_size)) { + fprintf(stderr, "boolean argument parsing failed: %s\n", opt); + return -1; + } } else { fprintf(stderr, "option parsing failed: %s\n", opt); return -1; } } + if (do_size) { + sizes = g_array_new(true, true, sizeof(unsigned long)); + } + qemu_plugin_register_vcpu_tb_trans_cb(id, vcpu_tb_trans); qemu_plugin_register_atexit_cb(id, plugin_exit, NULL); return 0; |