diff --git a/components/esp8266/include/esp8266/eagle_soc.h b/components/esp8266/include/esp8266/eagle_soc.h
index abb561c9..d4351db6 100644
--- a/components/esp8266/include/esp8266/eagle_soc.h
+++ b/components/esp8266/include/esp8266/eagle_soc.h
@@ -208,9 +208,13 @@
 #define RTC_USER_BASE                   (0x60001200)
 #define RTC_USER_SIZE                   (0x200)
 
+#define ROM_BASE                        (0x40000000)
+#define ROM_SIZE                        (0x10000)
+
 #define IS_DRAM(a)                      ((size_t)(a) >= DRAM_BASE && (size_t)(a) < (DRAM_BASE + DRAM_SIZE))
 #define IS_IRAM(a)                      ((size_t)(a) >= IRAM_BASE && (size_t)(a) < (IRAM_BASE + IRAM_SIZE))
 #define IS_FLASH(a)                     ((size_t)(a) >= FLASH_BASE && (size_t)(a) < (FLASH_BASE + FLASH_SIZE))
 #define IS_USR_RTC(a)                   ((size_t)(a) >= RTC_USER_BASE && (size_t)(a) < (RTC_USER_BASE + RTC_USER_SIZE))
+#define IS_ROM(a)                       ((size_t)(a) >= ROM_BASE && (size_t)(a) < (ROM_BASE + ROM_SIZE))
 
 #endif //_EAGLE_SOC_H_
diff --git a/components/esp8266/source/backtrace.c b/components/esp8266/source/backtrace.c
index beec6b3d..dfbed099 100644
--- a/components/esp8266/source/backtrace.c
+++ b/components/esp8266/source/backtrace.c
@@ -15,7 +15,7 @@
 #include <stdint.h>
 #include "esp8266/eagle_soc.h"
 
-static inline uint32_t prev_text_size(const uint32_t pc)
+static uint32_t prev_text_size(const uint32_t pc)
 {
     uint32_t size;
     extern uint32_t _text_start, _text_end;
@@ -24,6 +24,8 @@ static inline uint32_t prev_text_size(const uint32_t pc)
         size = pc - (uint32_t )&_text_start;
     } else if (IS_IRAM(pc)) {
         size = pc - IRAM_BASE;
+    } else if (IS_ROM(pc)) {
+        size = pc - ROM_BASE;
     } else {
         size = 0;
     }