I meet a syntax error in compilation when migrate freeRTOS to riscv core chip, here is a part of error log:

heap_4-112b34.s:505: error: (ASE1): Syntactic analysis error: syntax error, unexpected decimal constant.
#...
queue-f175f0.s:2380: error: (ASE1): Syntactic analysis error: syntax error, unexpected decimal constant.

In this case, I’m using clang and the version of freeRTOS is 10.6.0. I’m not sure if I get something wrong with Makefile or freeRTOS configuration. I share some parts of my Makefile below to see if it would help:

CLANG = $(clang_path)/clang

#Object confirm
OBJ = ...(other .o files) heap_4.o list.o queue.o task.o timers.o port.o portASM.o

CFLAGS = -o3 -g0 -Wall -I $(RTOS)/Include

all: $(OBJS)
#linker command here

.c.o:
    $(CLANG) -c $< -o $@ $(CFLAGS)

.s.o:
    $(CLANG) -c $< -o $@ $(CFLAGS)

#... clean code

I tried to change the compiler but it didn’t work.
And in the heap_4.c file, I didn’t find the unexpected decimal symbol.