My host platform can be either cygwin or Linux x86 and my target is an embedded system based on "Alchemy" Mips32 little Endian running a HardHat linux 2.0 based system. The toolchains are setup and functional. The mips_fp_el kernel is up. I am trying to understand how i can cross compile to this target the XFree 4.2.1 release. The current mips.cf comments and code indicate it to only work for BSD, is this true? There are references to Linux/mips in the change log and some .cf file. Has anyone to your knowledge done this sort of cross compile successfully and if so, are there any examples of the changes?
There are many mailing list references to XFree cross compiling but no complete examples which I can base my modifications off of. The closest is http://handhelds.org/minihowto/building-x.html. I'd hoped to download http://www.x86-64.org/Downloads/XFree86.src.tar.bz2 as an example but it doesn't seem to be available any more. My specific questions are: 1) all the net references talk about a command line like: make World CROSSCOMPILEDIR="TargetCompilerBinDir" Well, i can't find CROSSCOMPILEDIR anywhere in the 4.2.1 xc source tree. What am i missing? 2) Is the "New Cross Compile Method" as described in cc-imake.pdf regarding the x86-64 project in the source tree? I couldn't find it in the base 4.2.1 tree but it seems to be present in the latest config/cf files at least. Right? I'm pulling it down the tree now but it will probably take most of the night. 3) How does one specify the "target architecture"? Is it done in the host.def or in cross.def? Guido's info below is said to go into host.def. 4) where is the best place to specify my target specific gcc flags (i.e. -fno-pic -mno-abicalls -mips2 -G 0 -O2 -EL -DEL -Wa,-G0,-non_shared)? Thanks for your time Tibor I'd offline received this information from Guido Guenther. ------------------------------ I've not crosscompiled for a long time since I'm usually working on driver modules only, which is easier to do natilvely however I used: #define StandardIncludes -i//crossdev/mips-linux/include #define HasZlib NO #define MipsArchitecture #define __mips #undef i386Architecture #define OSName Linux 2.4.3 mips [ELF] #define OSMajorVersion 2 #define OSMinorVersion 4 #define OSTeenyVersion 3 #define LinuxCLibMajorVersion 6 #define LinuxCLibMinorVersion 2 #define LinuxCLibTeenyVersion 2 #define LinuxBinUtilsMajorVersion 211 #define CcCmd mips-linux-gcc -g #define AsCmd mips-linux-gcc -c -x assembler-with-cpp -g #define LdCmd mips-linux-ld -g #define ArCmdBase mips-linux-ar #define RanlibCmd mips-linux-ranlib #define CrossCompiling YES #define ComplexHostProgramTarget(program) @@\ CC=cc @@\ STD_INCLUDES= @@\ CFLAGS=$(TOP_INCLUDES) $(INCLUDES) $(BOOTSTRAPCFLAGS) @@\ EXTRA_LOAD_FLAGS= @@\ PROGRAM = program @@\ @@\ AllTarget(program) @@\ @@\ program: $(OBJS) $(DEPLIBS) @@\ RemoveTargetProgram($@) @@\ HostLinkRule($@,$(_NOOP_),$(OBJS),$(DEPLIBS) $(LOCAL_LIBRARIES)) @@\ @@\ DependTarget() @@\ @@\ LintTarget() @@\ @@\ clean:: @@\ RemoveFile(ProgramTargetName(program)) #define SimpleHostProgramTarget(program) @@\ OBJS = program.o @@\ SRCS = program.c @@\ @@\ ComplexHostProgramTarget(program) #define HostLinkRule(target, flags, src, libs) gcc -o target flags src libs $(EXTRA_LOAD_FLAGS) in config/cf/hosts.def. This worked very well for me but I read on a mailing list that the following in config/cf/hosts.def: #define CrossCompiling YES and then calling make like: cd xc; make World CROSSCOMPILEDIR=/skiff/local/bin _______________________________________________ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
