Outline ![]()
Files ![]()
loading...
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
/*
* SPDX-FileCopyrightText: 2017-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
// This module implements runtime file I/O API for GCOV.
#include <string.h>
#include "esp_task_wdt.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/semphr.h"
#include "soc/timer_periph.h"
#include "esp_app_trace.h"
#include "esp_freertos_hooks.h"
#include "dbg_stubs.h"
#include "esp_private/esp_ipc.h"
#include "esp_attr.h"
#include "hal/wdt_hal.h"
#if CONFIG_APPTRACE_GCOV_ENABLE
#define ESP_GCOV_DOWN_BUF_SIZE 4200
#include "esp_log.h"
const static char *TAG = "esp_gcov_rtio";
static volatile bool s_create_gcov_task = false;
static volatile bool s_gcov_task_running = false;
extern void __gcov_dump(void);
extern void __gcov_reset(void);
void gcov_dump_task(void *pvParameter)
{
int dump_result = 0;
bool *running = (bool *)pvParameter;
ESP_EARLY_LOGV(TAG, "%s stack use in %d", __FUNCTION__, uxTaskGetStackHighWaterMark(NULL));
ESP_EARLY_LOGV(TAG, "Alloc apptrace down buf %d bytes", ESP_GCOV_DOWN_BUF_SIZE);
void *down_buf = malloc(ESP_GCOV_DOWN_BUF_SIZE);
if (down_buf == NULL) {
ESP_EARLY_LOGE(TAG, "Could not allocate memory for the buffer");
dump_result = ESP_ERR_NO_MEM;
goto gcov_exit;
}
ESP_EARLY_LOGV(TAG, "Config apptrace down buf");
esp_apptrace_down_buffer_config(down_buf, ESP_GCOV_DOWN_BUF_SIZE);
ESP_EARLY_LOGV(TAG, "Dump data...");
__gcov_dump();
// reset dump status to allow incremental data accumulation
__gcov_reset();
free(down_buf);
ESP_EARLY_LOGV(TAG, "Finish file transfer session");
dump_result = esp_apptrace_fstop(ESP_APPTRACE_DEST_TRAX);
if (dump_result != ESP_OK) {
ESP_EARLY_LOGE(TAG, "Failed to send files transfer stop cmd (%d)!", dump_result);
}
gcov_exit:
ESP_EARLY_LOGV(TAG, "dump_result %d", dump_result);
if (running) {
*running = false;
}
ESP_EARLY_LOGV(TAG, "%s stack use out %d", __FUNCTION__, uxTaskGetStackHighWaterMark(NULL));
vTaskDelete(NULL);
}
void gcov_create_task(void *arg)
{
ESP_EARLY_LOGV(TAG, "%s", __FUNCTION__);
xTaskCreatePinnedToCore(&gcov_dump_task, "gcov_dump_task", CONFIG_APPTRACE_GCOV_DUMP_TASK_STACK_SIZE,
(void *)&s_gcov_task_running, configMAX_PRIORITIES - 1, NULL, 0);
}
static IRAM_ATTR
void gcov_create_task_tick_hook(void)
{
if (s_create_gcov_task) {
if (esp_ipc_call_nonblocking(xPortGetCoreID(), &gcov_create_task, NULL) == ESP_OK) {
s_create_gcov_task = false;
}
}
}
/**
* @brief Triggers gcov info dump task
* This function is to be called by OpenOCD, not by normal user code.
* TODO: what about interrupted flash access (when cache disabled)
*
* @return ESP_OK on success, otherwise see esp_err_t
*/
static int esp_dbg_stub_gcov_entry(void)
{
/* we are in isr context here */
s_create_gcov_task = true;
return ESP_OK;
}
void gcov_rtio_init(void)
{
uint32_t stub_entry = 0;
ESP_EARLY_LOGV(TAG, "%s", __FUNCTION__);
assert(esp_dbg_stub_entry_get(ESP_DBG_STUB_ENTRY_GCOV, &stub_entry) == ESP_OK);
if (stub_entry != 0) {
/* "__gcov_init()" can be called several times. We must avoid multiple tick hook registration */
return;
}
esp_dbg_stub_entry_set(ESP_DBG_STUB_ENTRY_GCOV, (uint32_t)&esp_dbg_stub_gcov_entry);
assert(esp_dbg_stub_entry_get(ESP_DBG_STUB_ENTRY_CAPABILITIES, &stub_entry) == ESP_OK);
esp_dbg_stub_entry_set(ESP_DBG_STUB_ENTRY_CAPABILITIES, stub_entry | ESP_DBG_STUB_CAP_GCOV_TASK);
esp_register_freertos_tick_hook(gcov_create_task_tick_hook);
}
void esp_gcov_dump(void)
{
ESP_EARLY_LOGV(TAG, "%s", __FUNCTION__);
while (!esp_apptrace_host_is_connected(ESP_APPTRACE_DEST_TRAX)) {
vTaskDelay(pdMS_TO_TICKS(10));
}
/* We are not in isr context here. Waiting for the completion is safe */
s_gcov_task_running = true;
s_create_gcov_task = true;
while (s_gcov_task_running) {
vTaskDelay(pdMS_TO_TICKS(10));
}
}
void *gcov_rtio_fopen(const char *path, const char *mode)
{
ESP_EARLY_LOGV(TAG, "%s '%s' '%s'", __FUNCTION__, path, mode);
void *f = esp_apptrace_fopen(ESP_APPTRACE_DEST_TRAX, path, mode);
ESP_EARLY_LOGV(TAG, "%s ret %p", __FUNCTION__, f);
return f;
}
int gcov_rtio_fclose(void *stream)
{
ESP_EARLY_LOGV(TAG, "%s", __FUNCTION__);
return esp_apptrace_fclose(ESP_APPTRACE_DEST_TRAX, stream);
}
size_t gcov_rtio_fread(void *ptr, size_t size, size_t nmemb, void *stream)
{
ESP_EARLY_LOGV(TAG, "%s read %u", __FUNCTION__, size * nmemb);
size_t sz = esp_apptrace_fread(ESP_APPTRACE_DEST_TRAX, ptr, size, nmemb, stream);
ESP_EARLY_LOGV(TAG, "%s actually read %u", __FUNCTION__, sz);
return sz;
}
size_t gcov_rtio_fwrite(const void *ptr, size_t size, size_t nmemb, void *stream)
{
ESP_EARLY_LOGV(TAG, "%s", __FUNCTION__);
return esp_apptrace_fwrite(ESP_APPTRACE_DEST_TRAX, ptr, size, nmemb, stream);
}
int gcov_rtio_fseek(void *stream, long offset, int whence)
{
int ret = esp_apptrace_fseek(ESP_APPTRACE_DEST_TRAX, stream, offset, whence);
ESP_EARLY_LOGV(TAG, "%s(%p %ld %d) = %d", __FUNCTION__, stream, offset, whence, ret);
return ret;
}
long gcov_rtio_ftell(void *stream)
{
long ret = esp_apptrace_ftell(ESP_APPTRACE_DEST_TRAX, stream);
ESP_EARLY_LOGV(TAG, "%s(%p) = %ld", __FUNCTION__, stream, ret);
return ret;
}
int gcov_rtio_feof(void *stream)
{
int ret = esp_apptrace_feof(ESP_APPTRACE_DEST_TRAX, stream);
ESP_EARLY_LOGV(TAG, "%s(%p) = %d", __FUNCTION__, stream, ret);
return ret;
}
void gcov_rtio_setbuf(void *arg1 __attribute__ ((unused)), void *arg2 __attribute__ ((unused)))
{
return;
}
/* Wrappers for Gcov functions */
extern void __real___gcov_init(void *info);
void __wrap___gcov_init(void *info)
{
__real___gcov_init(info);
gcov_rtio_init();
}
#endif
Details ![]()
Show: from Types: Columns: ![]( "Show Project Names")
![]( "Show Locations")
![]( "Show Referring Symbols")
![]( "Show Scope")
This file uses the notable symbols shown below. Click anywhere in the file to view more details.