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esp_gdbstub: refactor code

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This commit is contained in:
Alexey Lapshin
2023-04-02 23:29:27 +08:00
parent 39087f3157
commit fc9c2d704c
27 changed files with 277 additions and 904 deletions
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32
components/esp_gdbstub/src/gdbstub.c
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@@ -7,6 +7,7 @@
#include <string.h>
#include "esp_gdbstub.h"
#include "esp_gdbstub_common.h"
#include "esp_gdbstub_memory_regions.h"
#include "sdkconfig.h"
#include <sys/param.h>
@@ -73,7 +74,6 @@ void esp_gdbstub_panic_handler(void *in_frame)
}
#endif /* CONFIG_ESP_GDBSTUB_SUPPORT_TASKS */
esp_gdbstub_target_init();
s_scratch.signal = esp_gdbstub_get_signal(frame);
send_reason();
while (true) {
@@ -403,6 +403,36 @@ static void handle_G_command(const unsigned char *cmd, int len)
esp_gdbstub_send_str_packet("OK");
}
static int esp_gdbstub_readmem(intptr_t addr)
{
if (!is_valid_memory_region(addr)) {
/* 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;
}
static int esp_gdbstub_writemem(unsigned int addr, unsigned char data)
{
if (!is_valid_memory_region(addr)) {
/* see esp_cpu_configure_region_protection */
return -1;
}
unsigned *addr_aligned = (unsigned *)(addr & (~3));
const uint32_t bit_offset = (addr & 0x3) * 8;
const uint32_t mask = ~(0xff << bit_offset);
*addr_aligned = (*addr_aligned & mask) | (data << bit_offset);
#if CONFIG_IDF_TARGET_ARCH_XTENSA
asm volatile("ISYNC\nISYNC\n");
#endif // CONFIG_IDF_TARGET_ARCH_XTENSA
return 0;
}
/** Read memory to gdb */
static void handle_m_command(const unsigned char *cmd, int len)
{