diff options
Diffstat (limited to 'tests/plugin/mem.c')
-rw-r--r-- | tests/plugin/mem.c | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/tests/plugin/mem.c b/tests/plugin/mem.c deleted file mode 100644 index b650ddd..0000000 --- a/tests/plugin/mem.c +++ /dev/null @@ -1,139 +0,0 @@ -/* - * Copyright (C) 2018, Emilio G. Cota <cota@braap.org> - * - * License: GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - */ -#include <inttypes.h> -#include <assert.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <stdio.h> -#include <glib.h> - -#include <qemu-plugin.h> - -QEMU_PLUGIN_EXPORT int qemu_plugin_version = QEMU_PLUGIN_VERSION; - -typedef struct { - uint64_t mem_count; - uint64_t io_count; -} CPUCount; - -static struct qemu_plugin_scoreboard *counts; -static qemu_plugin_u64 mem_count; -static qemu_plugin_u64 io_count; -static bool do_inline, do_callback; -static bool do_haddr; -static enum qemu_plugin_mem_rw rw = QEMU_PLUGIN_MEM_RW; - -static void plugin_exit(qemu_plugin_id_t id, void *p) -{ - g_autoptr(GString) out = g_string_new(""); - - if (do_inline || do_callback) { - g_string_printf(out, "mem accesses: %" PRIu64 "\n", - qemu_plugin_u64_sum(mem_count)); - } - if (do_haddr) { - g_string_append_printf(out, "io accesses: %" PRIu64 "\n", - qemu_plugin_u64_sum(io_count)); - } - qemu_plugin_outs(out->str); - qemu_plugin_scoreboard_free(counts); -} - -static void vcpu_mem(unsigned int cpu_index, qemu_plugin_meminfo_t meminfo, - uint64_t vaddr, void *udata) -{ - if (do_haddr) { - struct qemu_plugin_hwaddr *hwaddr; - hwaddr = qemu_plugin_get_hwaddr(meminfo, vaddr); - if (qemu_plugin_hwaddr_is_io(hwaddr)) { - qemu_plugin_u64_add(io_count, cpu_index, 1); - } else { - qemu_plugin_u64_add(mem_count, cpu_index, 1); - } - } else { - qemu_plugin_u64_add(mem_count, cpu_index, 1); - } -} - -static void vcpu_tb_trans(qemu_plugin_id_t id, struct qemu_plugin_tb *tb) -{ - size_t n = qemu_plugin_tb_n_insns(tb); - size_t i; - - for (i = 0; i < n; i++) { - struct qemu_plugin_insn *insn = qemu_plugin_tb_get_insn(tb, i); - - if (do_inline) { - qemu_plugin_register_vcpu_mem_inline_per_vcpu( - insn, rw, - QEMU_PLUGIN_INLINE_ADD_U64, - mem_count, 1); - } - if (do_callback) { - qemu_plugin_register_vcpu_mem_cb(insn, vcpu_mem, - QEMU_PLUGIN_CB_NO_REGS, - rw, NULL); - } - } -} - -QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id, - const qemu_info_t *info, - int argc, char **argv) -{ - - for (int i = 0; i < argc; i++) { - char *opt = argv[i]; - g_auto(GStrv) tokens = g_strsplit(opt, "=", 2); - - if (g_strcmp0(tokens[0], "haddr") == 0) { - if (!qemu_plugin_bool_parse(tokens[0], tokens[1], &do_haddr)) { - fprintf(stderr, "boolean argument parsing failed: %s\n", opt); - return -1; - } - } else if (g_strcmp0(tokens[0], "track") == 0) { - if (g_strcmp0(tokens[1], "r") == 0) { - rw = QEMU_PLUGIN_MEM_R; - } else if (g_strcmp0(tokens[1], "w") == 0) { - rw = QEMU_PLUGIN_MEM_W; - } else if (g_strcmp0(tokens[1], "rw") == 0) { - rw = QEMU_PLUGIN_MEM_RW; - } else { - fprintf(stderr, "invalid value for argument track: %s\n", opt); - return -1; - } - } else if (g_strcmp0(tokens[0], "inline") == 0) { - if (!qemu_plugin_bool_parse(tokens[0], tokens[1], &do_inline)) { - fprintf(stderr, "boolean argument parsing failed: %s\n", opt); - return -1; - } - } else if (g_strcmp0(tokens[0], "callback") == 0) { - if (!qemu_plugin_bool_parse(tokens[0], tokens[1], &do_callback)) { - fprintf(stderr, "boolean argument parsing failed: %s\n", opt); - return -1; - } - } else { - fprintf(stderr, "option parsing failed: %s\n", opt); - return -1; - } - } - - if (do_inline && do_callback) { - fprintf(stderr, - "can't enable inline and callback counting at the same time\n"); - return -1; - } - - counts = qemu_plugin_scoreboard_new(sizeof(CPUCount)); - mem_count = qemu_plugin_scoreboard_u64_in_struct( - counts, CPUCount, mem_count); - io_count = qemu_plugin_scoreboard_u64_in_struct(counts, CPUCount, io_count); - qemu_plugin_register_vcpu_tb_trans_cb(id, vcpu_tb_trans); - qemu_plugin_register_atexit_cb(id, plugin_exit, NULL); - return 0; -} |