ec0d1849d9
The only real use is in cpu_abort, where we have just flushed the file via qemu_log_unlock, and are just about to force-crash the application via abort. We do not really need to close the FILE before the abort. The two uses in test-logging.c can be handled with qemu_set_log_filename_flags. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220417183019.755276-32-richard.henderson@linaro.org>
216 lines
7.0 KiB
C
216 lines
7.0 KiB
C
/*
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* logging unit-tests
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*
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* Copyright (C) 2016 Linaro Ltd.
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*
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* Author: Alex Bennée <alex.bennee@linaro.org>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include <glib/gstdio.h>
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#include "qapi/error.h"
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#include "qemu/log.h"
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#include "qemu/rcu.h"
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static void test_parse_range(void)
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{
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Error *err = NULL;
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qemu_set_dfilter_ranges("0x1000+0x100", &error_abort);
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g_assert_false(qemu_log_in_addr_range(0xfff));
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g_assert(qemu_log_in_addr_range(0x1000));
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g_assert(qemu_log_in_addr_range(0x1001));
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g_assert(qemu_log_in_addr_range(0x10ff));
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g_assert_false(qemu_log_in_addr_range(0x1100));
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qemu_set_dfilter_ranges("0x1000-0x100", &error_abort);
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g_assert_false(qemu_log_in_addr_range(0x1001));
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g_assert(qemu_log_in_addr_range(0x1000));
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g_assert(qemu_log_in_addr_range(0x0f01));
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g_assert_false(qemu_log_in_addr_range(0x0f00));
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qemu_set_dfilter_ranges("0x1000..0x1100", &error_abort);
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g_assert_false(qemu_log_in_addr_range(0xfff));
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g_assert(qemu_log_in_addr_range(0x1000));
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g_assert(qemu_log_in_addr_range(0x1100));
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g_assert_false(qemu_log_in_addr_range(0x1101));
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qemu_set_dfilter_ranges("0x1000..0x1000", &error_abort);
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g_assert_false(qemu_log_in_addr_range(0xfff));
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g_assert(qemu_log_in_addr_range(0x1000));
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g_assert_false(qemu_log_in_addr_range(0x1001));
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qemu_set_dfilter_ranges("0x1000+0x100,0x2100-0x100,0x3000..0x3100",
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&error_abort);
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g_assert(qemu_log_in_addr_range(0x1050));
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g_assert(qemu_log_in_addr_range(0x2050));
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g_assert(qemu_log_in_addr_range(0x3050));
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qemu_set_dfilter_ranges("0xffffffffffffffff-1", &error_abort);
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g_assert(qemu_log_in_addr_range(UINT64_MAX));
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g_assert_false(qemu_log_in_addr_range(UINT64_MAX - 1));
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qemu_set_dfilter_ranges("0..0xffffffffffffffff", &error_abort);
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g_assert(qemu_log_in_addr_range(0));
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g_assert(qemu_log_in_addr_range(UINT64_MAX));
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qemu_set_dfilter_ranges("2..1", &err);
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error_free_or_abort(&err);
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qemu_set_dfilter_ranges("0x1000+onehundred", &err);
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error_free_or_abort(&err);
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qemu_set_dfilter_ranges("0x1000+0", &err);
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error_free_or_abort(&err);
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}
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static void set_log_path_tmp(char const *dir, char const *tpl, Error **errp)
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{
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gchar *file_path = g_build_filename(dir, tpl, NULL);
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qemu_set_log_filename(file_path, errp);
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g_free(file_path);
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}
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static void test_parse_path(gconstpointer data)
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{
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gchar const *tmp_path = data;
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Error *err = NULL;
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set_log_path_tmp(tmp_path, "qemu.log", &error_abort);
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set_log_path_tmp(tmp_path, "qemu-%d.log", &error_abort);
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set_log_path_tmp(tmp_path, "qemu.log.%d", &error_abort);
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set_log_path_tmp(tmp_path, "qemu-%d%d.log", &err);
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error_free_or_abort(&err);
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}
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static void test_logfile_write(gconstpointer data)
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{
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FILE *logfile0, *logfile1;
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gchar const *dir = data;
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g_autofree gchar *file_path0 = NULL;
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g_autofree gchar *file_path1 = NULL;
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/*
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* Before starting test, set log flags, to ensure the file gets
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* opened below with the call to qemu_set_log_filename().
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* In cases where a logging backend other than log is used,
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* this is needed.
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*/
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qemu_set_log(CPU_LOG_TB_OUT_ASM, &error_abort);
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file_path0 = g_build_filename(dir, "qemu_test_log_write0.log", NULL);
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file_path1 = g_build_filename(dir, "qemu_test_log_write1.log", NULL);
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/*
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* Test that even if an open file handle is changed,
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* our handle remains valid due to RCU.
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*/
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qemu_set_log_filename(file_path0, &error_abort);
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logfile0 = qemu_log_trylock();
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g_assert(logfile0);
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fprintf(logfile0, "%s 1st write to file\n", __func__);
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fflush(logfile0);
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/* Change the logfile and ensure that the handle is still valid. */
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qemu_set_log_filename(file_path1, &error_abort);
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logfile1 = qemu_log_trylock();
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g_assert(logfile1);
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g_assert(logfile0 != logfile1);
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fprintf(logfile0, "%s 2nd write to file\n", __func__);
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fflush(logfile0);
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qemu_log_unlock(logfile0);
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qemu_log_unlock(logfile1);
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}
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static void test_logfile_lock(gconstpointer data)
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{
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FILE *logfile;
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gchar const *dir = data;
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g_autofree gchar *file_path = NULL;
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file_path = g_build_filename(dir, "qemu_test_logfile_lock0.log", NULL);
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/*
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* Test the use of the logfile lock, such
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* that even if an open file handle is closed,
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* our handle remains valid for use due to RCU.
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*/
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qemu_set_log_filename(file_path, &error_abort);
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logfile = qemu_log_trylock();
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g_assert(logfile);
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fprintf(logfile, "%s 1st write to file\n", __func__);
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fflush(logfile);
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/*
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* Initiate a close file and make sure our handle remains
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* valid since we still have the logfile lock.
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*/
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qemu_set_log_filename_flags(NULL, 0, &error_abort);
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fprintf(logfile, "%s 2nd write to file\n", __func__);
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fflush(logfile);
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qemu_log_unlock(logfile);
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}
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/* Remove a directory and all its entries (non-recursive). */
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static void rmdir_full(gchar const *root)
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{
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GDir *root_gdir = g_dir_open(root, 0, NULL);
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gchar const *entry_name;
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g_assert_nonnull(root_gdir);
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while ((entry_name = g_dir_read_name(root_gdir)) != NULL) {
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gchar *entry_path = g_build_filename(root, entry_name, NULL);
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g_assert(g_remove(entry_path) == 0);
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g_free(entry_path);
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}
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g_dir_close(root_gdir);
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g_assert(g_rmdir(root) == 0);
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}
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int main(int argc, char **argv)
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{
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g_autofree gchar *tmp_path = g_dir_make_tmp("qemu-test-logging.XXXXXX", NULL);
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int rc;
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g_test_init(&argc, &argv, NULL);
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g_assert_nonnull(tmp_path);
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g_test_add_func("/logging/parse_range", test_parse_range);
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g_test_add_data_func("/logging/parse_path", tmp_path, test_parse_path);
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g_test_add_data_func("/logging/logfile_write_path",
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tmp_path, test_logfile_write);
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g_test_add_data_func("/logging/logfile_lock_path",
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tmp_path, test_logfile_lock);
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rc = g_test_run();
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qemu_set_log_filename_flags(NULL, 0, &error_abort);
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drain_call_rcu();
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rmdir_full(tmp_path);
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return rc;
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}
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