1 /*
2 * Copyright (c) 2018 Nordic Semiconductor ASA
3 * Copyright (c) 2018 Intel Corporation
4 *
5 * SPDX-License-Identifier: Apache-2.0
6 */
7
8 #include <stdio.h>
9 #include <stddef.h>
10 #include <logging/log_backend.h>
11 #include <logging/log_backend_std.h>
12 #include <logging/log_core.h>
13 #include <logging/log_msg.h>
14 #include <logging/log_output.h>
15 #include <irq.h>
16 #include <arch/posix/posix_trace.h>
17
18 #define _STDOUT_BUF_SIZE 256
19 static char stdout_buff[_STDOUT_BUF_SIZE];
20 static int n_pend; /* Number of pending characters in buffer */
21
preprint_char(int c)22 static void preprint_char(int c)
23 {
24 int printnow = 0;
25
26 if (c == '\r') {
27 /* Discard carriage returns */
28 return;
29 }
30 if (c != '\n') {
31 stdout_buff[n_pend++] = c;
32 stdout_buff[n_pend] = 0;
33 } else {
34 printnow = 1;
35 }
36
37 if (n_pend >= _STDOUT_BUF_SIZE - 1) {
38 printnow = 1;
39 }
40
41 if (printnow) {
42 posix_print_trace("%s\n", stdout_buff);
43 n_pend = 0;
44 stdout_buff[0] = 0;
45 }
46 }
47
48 static uint8_t buf[_STDOUT_BUF_SIZE];
49
char_out(uint8_t * data,size_t length,void * ctx)50 static int char_out(uint8_t *data, size_t length, void *ctx)
51 {
52 for (size_t i = 0; i < length; i++) {
53 preprint_char(data[i]);
54 }
55
56 return length;
57 }
58
59 LOG_OUTPUT_DEFINE(log_output_posix, char_out, buf, sizeof(buf));
60
put(const struct log_backend * const backend,struct log_msg * msg)61 static void put(const struct log_backend *const backend,
62 struct log_msg *msg)
63 {
64 log_msg_get(msg);
65
66 uint32_t flags = LOG_OUTPUT_FLAG_LEVEL | LOG_OUTPUT_FLAG_TIMESTAMP;
67
68 if (IS_ENABLED(CONFIG_LOG_BACKEND_SHOW_COLOR)) {
69 if (posix_trace_over_tty(0)) {
70 flags |= LOG_OUTPUT_FLAG_COLORS;
71 }
72 }
73
74 if (IS_ENABLED(CONFIG_LOG_BACKEND_FORMAT_TIMESTAMP)) {
75 flags |= LOG_OUTPUT_FLAG_FORMAT_TIMESTAMP;
76 }
77
78 log_output_msg_process(&log_output_posix, msg, flags);
79
80 log_msg_put(msg);
81
82 }
83
panic(struct log_backend const * const backend)84 static void panic(struct log_backend const *const backend)
85 {
86 log_output_flush(&log_output_posix);
87 }
88
dropped(const struct log_backend * const backend,uint32_t cnt)89 static void dropped(const struct log_backend *const backend, uint32_t cnt)
90 {
91 ARG_UNUSED(backend);
92
93 log_output_dropped_process(&log_output_posix, cnt);
94 }
95
sync_string(const struct log_backend * const backend,struct log_msg_ids src_level,uint32_t timestamp,const char * fmt,va_list ap)96 static void sync_string(const struct log_backend *const backend,
97 struct log_msg_ids src_level, uint32_t timestamp,
98 const char *fmt, va_list ap)
99 {
100 uint32_t flags = LOG_OUTPUT_FLAG_LEVEL | LOG_OUTPUT_FLAG_TIMESTAMP;
101 uint32_t key;
102
103 if (IS_ENABLED(CONFIG_LOG_BACKEND_SHOW_COLOR)) {
104 flags |= LOG_OUTPUT_FLAG_COLORS;
105 }
106
107 if (IS_ENABLED(CONFIG_LOG_BACKEND_FORMAT_TIMESTAMP)) {
108 flags |= LOG_OUTPUT_FLAG_FORMAT_TIMESTAMP;
109 }
110
111 key = irq_lock();
112 log_output_string(&log_output_posix, src_level,
113 timestamp, fmt, ap, flags);
114 irq_unlock(key);
115 }
116
sync_hexdump(const struct log_backend * const backend,struct log_msg_ids src_level,uint32_t timestamp,const char * metadata,const uint8_t * data,uint32_t length)117 static void sync_hexdump(const struct log_backend *const backend,
118 struct log_msg_ids src_level, uint32_t timestamp,
119 const char *metadata, const uint8_t *data, uint32_t length)
120 {
121 uint32_t flags = LOG_OUTPUT_FLAG_LEVEL | LOG_OUTPUT_FLAG_TIMESTAMP;
122 uint32_t key;
123
124 if (IS_ENABLED(CONFIG_LOG_BACKEND_SHOW_COLOR)) {
125 flags |= LOG_OUTPUT_FLAG_COLORS;
126 }
127
128 if (IS_ENABLED(CONFIG_LOG_BACKEND_FORMAT_TIMESTAMP)) {
129 flags |= LOG_OUTPUT_FLAG_FORMAT_TIMESTAMP;
130 }
131
132 key = irq_lock();
133 log_output_hexdump(&log_output_posix, src_level, timestamp,
134 metadata, data, length, flags);
135 irq_unlock(key);
136 }
137
process(const struct log_backend * const backend,union log_msg2_generic * msg)138 static void process(const struct log_backend *const backend,
139 union log_msg2_generic *msg)
140 {
141 uint32_t flags = log_backend_std_get_flags();
142
143 log_output_msg2_process(&log_output_posix, &msg->log, flags);
144 }
145
146 const struct log_backend_api log_backend_native_posix_api = {
147 .process = IS_ENABLED(CONFIG_LOG2) ? process : NULL,
148 .put = IS_ENABLED(CONFIG_LOG_MODE_DEFERRED) ? put : NULL,
149 .put_sync_string = IS_ENABLED(CONFIG_LOG_MODE_IMMEDIATE) ?
150 sync_string : NULL,
151 .put_sync_hexdump = IS_ENABLED(CONFIG_LOG_MODE_IMMEDIATE) ?
152 sync_hexdump : NULL,
153 .panic = panic,
154 .dropped = IS_ENABLED(CONFIG_LOG_IMMEDIATE) ? NULL : dropped,
155 };
156
157 LOG_BACKEND_DEFINE(log_backend_native_posix,
158 log_backend_native_posix_api,
159 true);
160
