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gdbstub component

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This commit is contained in:
Dmitry
2021-04-15 10:52:09 +03:00
parent 74f9ce437f
commit 7bb91f912c
22 changed files with 681 additions and 161 deletions
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38
components/esp_gdbstub/esp32/gdbstub_esp32.c
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@@ -16,41 +16,3 @@
#include "soc/gpio_periph.h"
#include "esp_gdbstub_common.h"
#include "sdkconfig.h"
#define UART_NUM CONFIG_ESP_CONSOLE_UART_NUM
void esp_gdbstub_target_init(void)
{
}
int esp_gdbstub_getchar(void)
{
while (REG_GET_FIELD(UART_STATUS_REG(UART_NUM), UART_RXFIFO_CNT) == 0) {
;
}
return REG_READ(UART_FIFO_REG(UART_NUM));
}
void esp_gdbstub_putchar(int c)
{
while (REG_GET_FIELD(UART_STATUS_REG(UART_NUM), UART_TXFIFO_CNT) >= 126) {
;
}
REG_WRITE(UART_FIFO_REG(UART_NUM), c);
}
void esp_gdbstub_flush()
{
//not needed for uart
}
int esp_gdbstub_readmem(intptr_t addr)
{
if (addr < 0x20000000 || addr >= 0x80000000) {
/* see esp_cpu_configure_region_protection */
return -1;
}
uint32_t val_aligned = *(uint32_t *)(addr & (~3));
uint32_t shift = (addr & 3) * 8;
return (val_aligned >> shift) & 0xff;
}