Question

我写了一个Makefile，我无法让它工作。我有一个选项，应该选择要编译的处理器。但是，当我从命令行运行make时，它会说：

tandex@tandex-P-6860FX:~/emulators/nintendo sdks/3DS SDK [HomeBrew]$ make
gcc -march=arm7tdmi -static -fexceptions -fnon-call-exceptions -fstack-check test.c -c
test.c:1:0: error: bad value (arm7tdmi) for -march= switch

make: *** [ALL] Error 1

但是在gcc的手册页中，它声明arm7tdmi是允许的值。我错过了什么吗？

生成文件：

#3DS Compilation Makefile (c) TanDex (TEQ)RunawayFreelancers
#
#Version 0.99 (Alpha) For *nix Devices
#
#Please Check Back Soon for 3rd SDK

#SELECT THE COMPILER TO USE! GCC RECOMMENDED!
#FOR SANITY SAKE, USE C FILES WITH GCC AND CPP FILES WITH G++
CC=gcc
#CC=g++

#OBJECTCOPY REFERENCE, DO NOT REMOVE
OBJC=objcopy
OBJREFS= -O Binary

#SELECT THE PROCESSOR TO TUNE IT TO. ARMV7 (Nintendo DS) or ARMV9(Nintendo DS
(Graphical Support))
#or ARM11 Core ARM1176JZ-S and ARM1176JZF-S (3DS Processor? Not Sure if Correct. Try
and see if they Work?)
#
#NOTE: DS GAMES REQUIRE BOTH A ARM7 AND ARM9 BINARY. RUN THIS TWICE (ONCE FOR EACH)
#
#UNCOMMENT FOR PROCESOR

PROCESSOR=arm7tdmi
#PROCESSOR=arm946e-s
#PROCESSOR=arm1176jz-s
#PROCESSOR=arm1176jzf-s

#FILES
#
#PLACE ALL OF THE FILES HERE, THAT ARE BEING COMPILED!
FILES=test.c

#SET BIN FILE NAME BASED ON PROCESSOR SELECTED
ifeq($(PROCESSOR),arm7tdmi)\
NAME=ARM7.BIN
ifeq($(PROCESSOR), arm946e-s)\
NAME=ARM9.BIN
ifeq($(PROCESSOR), arm1176jz-s)\
NAME=ARM11.BIN
ifeq($(PROCESSOR), arm1176jzf-s)\
NAME=ARM11.BIN

#CREATE OBJECTS
ifeq($(CC), gcc)\
OBJECTS=$(FILES:.c=.o)
ifeq($(CC), g++)\
OBJECTS=$(FILES:.cpp=.o)

#FLAGS! DO NOT CHANGE THESE!!!!!!!!!!! THAT MEANS YOU!!!!!
#
#FOR THOSE WHO WANT TO KNOW WHAT THESE DO, HERE THEY ARE:
#-mtune=$(PROCESSOR)        FORE THE COMPILER TO TUNE OUTPUT TO THE SPECIFIED
PROCESSOR
#-static            REQUIRED FOR CLEAN BINARY OUTPUT?? (NOT SURE WHAT THIS
DOES, BUT WAS SUGESTED ON A POST ON STACKOVERFLOW)
#-fexceptions           FORCE EXCEPTIONS
#-fnon-call-exceptions      FORCE EXCEPTIONS TO ONLY BE RETURNED BY THE SYSTEM
(MEMORY AND FPU INSTRUTIONS FOR EXAMPLE)
#-fstack-check          FORCE STACK CHECKING (DS / 3DS USE AWKWARD STACK
IMPLEMENTATION)
CFLAGS=-march=$(PROCESSOR) -static -fexceptions -fnon-call-exceptions -fstack-check

ALL:
$(CC) $(CFLAGS) $(FILES) -c
.c.o:
$(OBJC) $(OBJREFS) $(OBJECTS) $(NAME)
.cpp.o:
$(OBJC) $(OBJREFS) $(OBJECTS) $(NAME)

Answer 1

你可能没有打电话给正确的gcc。您似乎在调用系统中安装的gcc，而不是3DS SDK附带的gcc。

Answer 2

问题出现在-march=arm7tdmi。

我认为解决方法是避免使用-march=arm7tdmi;并使用-march=cpu-type，其中cpu-type是GCC手册3.17.4 ARM Options中列出的其中一个。

以下是该页面的一部分：

-march =名


指定目标ARM体系结构的名称。 GCC使用此名称来确定它何时可以发出什么样的指令   生成汇编代码。此选项可与结合使用   或者代替-mcpu =选项。允许的名称是：'armv2'，   'armv2a'，'armv3'，'armv3m'，'armv4'，'armv4t'，'armv5'，'armv5t'，   'armv5e'，'armv5te'，'armv6'，'armv6j'，'armv6t2'，'armv6z'，   'armv6kz'，'armv6-m'，'armv7'，'armv7-a'，'armv7-r'，'armv7-m'，   'armv7e-m'，'armv7ve'，'armv8-a'，'armv8-a + crc'，'iwmmxt'，'iwmmxt2'，   “EP9312”。

错误：-march = switch的值不正确

2 个答案: