Error: bad value for -march= switch
arm, compiler-errors, embedded, gcc, makefile
Solution
You are probably not calling the right gcc. You seem to be calling the gcc installed in your system, rather than the one that comes with the 3DS SDK.
Problem
I wrote a Makefile and I can't get it to work. I have an option which is supposed to select which processor to compile to. However, when I run `make` from the commandline it says: ``` 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 ``` But in the man pages for gcc, it states that arm7tdmi is a permissible value. Am I missing something? Makefile: ``` #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) ```