qemu-patch-raspberry4/tests/test-logging.c
Robert Foley fb47fc6924 Added tests for close and change of logfile.
One test ensures that the logfile handle is still valid even if
the logfile is changed during logging.
The other test validates that the logfile handle remains valid under
the logfile lock even if the logfile is closed.

Signed-off-by: Robert Foley <robert.foley@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20191118211528.3221-7-robert.foley@linaro.org>
2019-12-18 20:18:02 +00:00

224 lines
7.1 KiB
C

/*
* logging unit-tests
*
* Copyright (C) 2016 Linaro Ltd.
*
* Author: Alex Bennée <alex.bennee@linaro.org>
*
* 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 <glib/gstdio.h>
#include "qemu-common.h"
#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", &err);
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;
Error *err = NULL;
g_autofree gchar *file_path;
g_autofree gchar *file_path1;
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, &err);
g_assert(!err);
rcu_read_lock();
logfile = atomic_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, &err);
g_assert(!err);
logfile2 = atomic_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;
Error *err = NULL;
g_autofree gchar *file_path;
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, &err);
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);
g_assert(!err);
}
/* 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)
{
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();
rmdir_full(tmp_path);
g_free(tmp_path);
return rc;
}