/* * logging unit-tests * * Copyright (C) 2016 Linaro Ltd. * * Author: Alex Bennée * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "qemu/osdep.h" #include #include "qapi/error.h" #include "qemu/log.h" static void test_parse_range(void) { Error *err = NULL; qemu_set_dfilter_ranges("0x1000+0x100", &error_abort); g_assert_false(qemu_log_in_addr_range(0xfff)); g_assert(qemu_log_in_addr_range(0x1000)); g_assert(qemu_log_in_addr_range(0x1001)); g_assert(qemu_log_in_addr_range(0x10ff)); g_assert_false(qemu_log_in_addr_range(0x1100)); qemu_set_dfilter_ranges("0x1000-0x100", &error_abort); g_assert_false(qemu_log_in_addr_range(0x1001)); g_assert(qemu_log_in_addr_range(0x1000)); g_assert(qemu_log_in_addr_range(0x0f01)); g_assert_false(qemu_log_in_addr_range(0x0f00)); qemu_set_dfilter_ranges("0x1000..0x1100", &error_abort); g_assert_false(qemu_log_in_addr_range(0xfff)); g_assert(qemu_log_in_addr_range(0x1000)); g_assert(qemu_log_in_addr_range(0x1100)); g_assert_false(qemu_log_in_addr_range(0x1101)); qemu_set_dfilter_ranges("0x1000..0x1000", &error_abort); g_assert_false(qemu_log_in_addr_range(0xfff)); g_assert(qemu_log_in_addr_range(0x1000)); g_assert_false(qemu_log_in_addr_range(0x1001)); qemu_set_dfilter_ranges("0x1000+0x100,0x2100-0x100,0x3000..0x3100", &error_abort); g_assert(qemu_log_in_addr_range(0x1050)); g_assert(qemu_log_in_addr_range(0x2050)); g_assert(qemu_log_in_addr_range(0x3050)); qemu_set_dfilter_ranges("0xffffffffffffffff-1", &error_abort); g_assert(qemu_log_in_addr_range(UINT64_MAX)); g_assert_false(qemu_log_in_addr_range(UINT64_MAX - 1)); qemu_set_dfilter_ranges("0..0xffffffffffffffff", &error_abort); g_assert(qemu_log_in_addr_range(0)); g_assert(qemu_log_in_addr_range(UINT64_MAX)); qemu_set_dfilter_ranges("2..1", &err); error_free_or_abort(&err); qemu_set_dfilter_ranges("0x1000+onehundred", &err); error_free_or_abort(&err); qemu_set_dfilter_ranges("0x1000+0", &err); error_free_or_abort(&err); } static void set_log_path_tmp(char const *dir, char const *tpl, Error **errp) { gchar *file_path = g_build_filename(dir, tpl, NULL); qemu_set_log_filename(file_path, errp); g_free(file_path); } static void test_parse_path(gconstpointer data) { gchar const *tmp_path = data; Error *err = NULL; set_log_path_tmp(tmp_path, "qemu.log", &error_abort); set_log_path_tmp(tmp_path, "qemu-%d.log", &error_abort); set_log_path_tmp(tmp_path, "qemu.log.%d", &error_abort); set_log_path_tmp(tmp_path, "qemu-%d%d.log", &err); error_free_or_abort(&err); } static void test_logfile_write(gconstpointer data) { QemuLogFile *logfile; QemuLogFile *logfile2; gchar const *dir = data; g_autofree gchar *file_path = NULL; g_autofree gchar *file_path1 = NULL; FILE *orig_fd; /* * Before starting test, set log flags, to ensure the file gets * opened below with the call to qemu_set_log_filename(). * In cases where a logging backend other than log is used, * this is needed. */ qemu_set_log(CPU_LOG_TB_OUT_ASM); file_path = g_build_filename(dir, "qemu_test_log_write0.log", NULL); file_path1 = g_build_filename(dir, "qemu_test_log_write1.log", NULL); /* * Test that even if an open file handle is changed, * our handle remains valid due to RCU. */ qemu_set_log_filename(file_path, &error_abort); rcu_read_lock(); logfile = qatomic_rcu_read(&qemu_logfile); orig_fd = logfile->fd; g_assert(logfile && logfile->fd); fprintf(logfile->fd, "%s 1st write to file\n", __func__); fflush(logfile->fd); /* Change the logfile and ensure that the handle is still valid. */ qemu_set_log_filename(file_path1, &error_abort); logfile2 = qatomic_rcu_read(&qemu_logfile); g_assert(logfile->fd == orig_fd); g_assert(logfile2->fd != logfile->fd); fprintf(logfile->fd, "%s 2nd write to file\n", __func__); fflush(logfile->fd); rcu_read_unlock(); } static void test_logfile_lock(gconstpointer data) { FILE *logfile; gchar const *dir = data; g_autofree gchar *file_path = NULL; file_path = g_build_filename(dir, "qemu_test_logfile_lock0.log", NULL); /* * Test the use of the logfile lock, such * that even if an open file handle is closed, * our handle remains valid for use due to RCU. */ qemu_set_log_filename(file_path, &error_abort); logfile = qemu_log_lock(); g_assert(logfile); fprintf(logfile, "%s 1st write to file\n", __func__); fflush(logfile); /* * Initiate a close file and make sure our handle remains * valid since we still have the logfile lock. */ qemu_log_close(); fprintf(logfile, "%s 2nd write to file\n", __func__); fflush(logfile); qemu_log_unlock(logfile); } /* Remove a directory and all its entries (non-recursive). */ static void rmdir_full(gchar const *root) { GDir *root_gdir = g_dir_open(root, 0, NULL); gchar const *entry_name; g_assert_nonnull(root_gdir); while ((entry_name = g_dir_read_name(root_gdir)) != NULL) { gchar *entry_path = g_build_filename(root, entry_name, NULL); g_assert(g_remove(entry_path) == 0); g_free(entry_path); } g_dir_close(root_gdir); g_assert(g_rmdir(root) == 0); } int main(int argc, char **argv) { g_autofree gchar *tmp_path = g_dir_make_tmp("qemu-test-logging.XXXXXX", NULL); int rc; g_test_init(&argc, &argv, NULL); g_assert_nonnull(tmp_path); g_test_add_func("/logging/parse_range", test_parse_range); g_test_add_data_func("/logging/parse_path", tmp_path, test_parse_path); g_test_add_data_func("/logging/logfile_write_path", tmp_path, test_logfile_write); g_test_add_data_func("/logging/logfile_lock_path", tmp_path, test_logfile_lock); rc = g_test_run(); qemu_log_close(); drain_call_rcu(); rmdir_full(tmp_path); return rc; }