diff --git a/os/common/startup/ARM/compilers/GCC/rules.mk b/os/common/startup/ARM/compilers/GCC/rules.mk
index fa8a4ec4e..7c068d588 100644
--- a/os/common/startup/ARM/compilers/GCC/rules.mk
+++ b/os/common/startup/ARM/compilers/GCC/rules.mk
@@ -131,17 +131,20 @@ ifneq ($(strip $(TSRC)),)
   CFLAGS   += -DTHUMB_PRESENT
   CPPFLAGS += -DTHUMB_PRESENT
   ASFLAGS  += -DTHUMB_PRESENT
+  ASXFLAGS += -DTHUMB_PRESENT
   ifneq ($(strip $(ASRC)),)
     # Mixed ARM and THUMB mode.
     CFLAGS   += -mthumb-interwork
     CPPFLAGS += -mthumb-interwork
     ASFLAGS  += -mthumb-interwork
+    ASXFLAGS += -mthumb-interwork
     LDFLAGS  += -mthumb-interwork
   else
     # Pure THUMB mode, THUMB C code cannot be called by ARM asm code directly.
     CFLAGS   += -mno-thumb-interwork -DTHUMB_NO_INTERWORKING
     CPPFLAGS += -mno-thumb-interwork -DTHUMB_NO_INTERWORKING
     ASFLAGS  += -mno-thumb-interwork -DTHUMB_NO_INTERWORKING -mthumb
+    ASXFLAGS += -mno-thumb-interwork -DTHUMB_NO_INTERWORKING -mthumb
     LDFLAGS  += -mno-thumb-interwork -mthumb
   endif
 else
@@ -149,11 +152,13 @@ else
   CFLAGS   += -mno-thumb-interwork
   CPPFLAGS += -mno-thumb-interwork
   ASFLAGS  += -mno-thumb-interwork
+  ASXFLAGS += -mno-thumb-interwork
   LDFLAGS  += -mno-thumb-interwork
 endif
 
 # Generate dependency information
 ASFLAGS  += -MD -MP -MF .dep/$(@F).d
+ASXFLAGS += -MD -MP -MF .dep/$(@F).d
 CFLAGS   += -MD -MP -MF .dep/$(@F).d
 CPPFLAGS += -MD -MP -MF .dep/$(@F).d
 
diff --git a/os/common/startup/SIMIA32/compilers/GCC/rules.mk b/os/common/startup/SIMIA32/compilers/GCC/rules.mk
index 47262a27b..01577c2da 100644
--- a/os/common/startup/SIMIA32/compilers/GCC/rules.mk
+++ b/os/common/startup/SIMIA32/compilers/GCC/rules.mk
@@ -74,6 +74,7 @@ LDFLAGS   = $(MCFLAGS) $(OPT) $(LLIBDIR) -Wl,-Map=$(BUILDDIR)/$(PROJECT).map,--c
 
 # Generate dependency information
 ASFLAGS  += -MD -MP -MF .dep/$(@F).d
+ASXFLAGS += -MD -MP -MF .dep/$(@F).d
 CFLAGS   += -MD -MP -MF .dep/$(@F).d
 CPPFLAGS += -MD -MP -MF .dep/$(@F).d
 
diff --git a/os/common/startup/e200/compilers/GCC/rules.mk b/os/common/startup/e200/compilers/GCC/rules.mk
index 9e5fd8fb8..7bfb8d348 100644
--- a/os/common/startup/e200/compilers/GCC/rules.mk
+++ b/os/common/startup/e200/compilers/GCC/rules.mk
@@ -100,6 +100,7 @@ LDFLAGS   = $(MCFLAGS) $(OPT) -nostartfiles $(LLIBDIR) -Wl,-Map=$(BUILDDIR)/$(PR
 
 # Generate dependency information
 ASFLAGS  += -MD -MP -MF .dep/$(@F).d
+ASXFLAGS += -MD -MP -MF .dep/$(@F).d
 CFLAGS   += -MD -MP -MF .dep/$(@F).d
 CPPFLAGS += -MD -MP -MF .dep/$(@F).d