/*
* Copyright ( c ) 2019 , Google Inc . All rights reserved
*
* 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 <assert.h>
#include <kernel/spinlock.h>
#include <lib/unittest/unittest.h>
#include <lk/init.h>
#include <stdio.h>
#include <string.h>
#if LK_LIBC_IMPLEMENTATION_IS_MUSL
#include <trusty/io_handle.h>
#endif
static size_t print_count;
static size_t print_bytes;
static size_t commit_count;
/*
* NOTE : we ' re just looking for a general sense these functions are being
* called . The kernel could be logging from other threads .
* TODO : modularize logging so it can be tested in isolation .
*/
static void test_print_callback(print_callback_t* cb,
const char * str,
size_t len) {
print_count += 1 ;
print_bytes += len;
}
static void test_commit_callback(print_callback_t* cb) {
commit_count += 1 ;
}
static void clear_stats(void ) {
print_count = 0 ;
print_bytes = 0 ;
commit_count = 0 ;
}
/* Did we print something like "Hello, test!" ? */
static void check_standard_stats(void ) {
EXPECT_LE(1 , print_count);
EXPECT_LE(13 , print_bytes);
EXPECT_LE(1 , commit_count);
}
/*
* Most of these tests are smoke tests - making sure there are no trivial
* deadlocks or crashes .
*/
TEST(consoletest, puts) {
clear_stats();
/* puts will have a slightly different code path than printf. */
puts("Hello, test!\n" );
check_standard_stats();
}
TEST(consoletest, threading) {
clear_stats();
printf("Hello, %s!\n" , "test" );
check_standard_stats();
}
TEST(consoletest, irq_disabled) {
spin_lock_saved_state_t state;
clear_stats();
arch_interrupt_save(&state, SPIN_LOCK_FLAG_INTERRUPTS);
printf("Hello, %s!\n" , "test" );
arch_interrupt_restore(state, SPIN_LOCK_FLAG_INTERRUPTS);
check_standard_stats();
}
TEST(consoletest, steal_lock) {
spin_lock_saved_state_t state;
clear_stats();
io_lock(file_io_handle(stdout));
arch_interrupt_save(&state, SPIN_LOCK_FLAG_INTERRUPTS);
printf("Hello, %s!\n" , "test" );
arch_interrupt_restore(state, SPIN_LOCK_FLAG_INTERRUPTS);
io_unlock(file_io_handle(stdout));
check_standard_stats();
}
static bool run_console_test(struct unittest* test) {
bool tests_passed;
print_callback_t cb;
/* Set a stub callback so all paths get exercised. */
memset(&cb, 0 , sizeof (cb));
cb.print = test_print_callback;
cb.commit = test_commit_callback;
register_print_callback(&cb);
tests_passed = RUN_ALL_TESTS();
unregister_print_callback(&cb);
return tests_passed;
}
static void console_test_init(uint level) {
static struct unittest console_unittest = {
.port_name = "com.android.kernel.console-unittest" ,
.run_test = run_console_test,
};
unittest_add(&console_unittest);
}
LK_INIT_HOOK(console_test, console_test_init, LK_INIT_LEVEL_APPS);
Messung V0.5 in Prozent C=74 H=86 G=79
¤ Dauer der Verarbeitung: 0.12 Sekunden
(vorverarbeitet am 2026-06-27)
¤
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