xref: /kernel/liteos_m/utils/los_debug.c (revision 3d8536b4) 
1/*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 *    conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 *    of conditions and the following disclaimer in the documentation and/or other materials
13 *    provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 *    to endorse or promote products derived from this software without specific prior written
17 *    permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include "los_debug.h"
33#include "stdarg.h"
34#include "los_interrupt.h"
35#include "los_task.h"
36
37#if (LOSCFG_KERNEL_PRINTF == 1)
38STATIC const CHAR *g_logString[] = {
39    "EMG",
40    "COMMON",
41    "ERR",
42    "WARN",
43    "INFO",
44    "DEBUG",
45};
46#endif
47
48STATIC ExcHookFn g_excHook;
49STATIC BACK_TRACE_HOOK g_backTraceHook = NULL;
50
51VOID OsBackTraceHookSet(BACK_TRACE_HOOK hook)
52{
53    if (g_backTraceHook == NULL) {
54        g_backTraceHook = hook;
55    }
56}
57
58VOID OsBackTraceHookCall(UINTPTR *LR, UINT32 LRSize, UINT32 jumpCount, UINTPTR SP)
59{
60    if (g_backTraceHook != NULL) {
61        g_backTraceHook(LR, LRSize, jumpCount, SP);
62    } else {
63        PRINT_ERR("Record LR failed, because of g_backTraceHook is not registered, "
64                  "should call OSBackTraceInit firstly\n");
65    }
66}
67
68VOID OsExcHookRegister(ExcHookFn excHookFn)
69{
70    UINT32 intSave = LOS_IntLock();
71    if (!g_excHook) {
72        g_excHook = excHookFn;
73    }
74    LOS_IntRestore(intSave);
75}
76
77VOID OsDoExcHook(EXC_TYPE excType)
78{
79    UINT32 intSave = LOS_IntLock();
80    if (g_excHook) {
81        g_excHook(excType);
82    }
83    LOS_IntRestore(intSave);
84}
85
86#if (LOSCFG_KERNEL_PRINTF == 1)
87INT32 OsLogLevelCheck(INT32 level)
88{
89    if (level > PRINT_LEVEL) {
90        return (INT32)LOS_NOK;
91    }
92
93    if ((level != LOG_COMMON_LEVEL) && ((level > LOG_EMG_LEVEL) && (level <= LOG_DEBUG_LEVEL))) {
94        PRINTK("[%s][%s]", g_logString[level], LOS_CurTaskNameGet());
95    }
96
97    return LOS_OK;
98}
99#endif
100
101#if (LOSCFG_KERNEL_PRINTF > 1)
102WEAK VOID HalConsoleOutput(LogModuleType type, INT32 level, const CHAR *fmt, ...)
103{
104}
105#endif
106
107