add support for CPU interrupts for ESP32-C3

targets/esp32c3.json

@@ -15,6 +15,7 @@
 	"serial-port": ["acm:303a:1001"],
 	"openocd-interface": "esp_usb_jtag",
 	"openocd-target": "esp32c3",
-	"openocd-commands": ["gdb_memory_map disable"]
+ 	"openocd-commands": ["gdb_memory_map disable"],
+ 	"gdb": ["riscv32-esp-elf-gdb"]
 }
 

targets/esp32c3.ld

@@ -141,6 +141,9 @@ SECTIONS
      */
     .text : ALIGN(4)
     {
+        . = ALIGN (256);
+        *(.text.exception_vectors)
+        . = ALIGN (4);
         *(.text .text.*)
     } >IROM