【已解决】给定多个C文件和多个.S汇编文件，如何用他们生成单个.o目标文件
【已解决】给定多个C文件和多个.S汇编文件，如何用他们生成单个.o目标文件
当然编译uboot下面的bch库，在加入对应C源码和.S汇编之后，编译是正常的：
arm-linux-uclibc-gcc -D__ASSEMBLY__ -g -Os
-fno-strict-aliasing -fno-common -ffixed-r8 -msoft-float -D__KERNEL__ -DTEXT_BASE=0x -I/home/crifan/uboot_as3536/u-boot-2009.03/include -fno-builtin -ffreestanding -nostdinc -isystem /home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/bin/../lib/gcc/arm-linux-uclibc/4.2.4/include -pipe -DCONFIG_ARM -D__ARM__ -march=armv5te -mabi=apcs-gnu -mno-thumb-interwork -c -o lowlevel_init.o lowlevel_init.S
arm-linux-uclibc-gcc -D__ASSEMBLY__ -g -Os
-fno-strict-aliasing -fno-common -ffixed-r8 -msoft-float -D__KERNEL__ -DTEXT_BASE=0x -I/home/crifan/uboot_as3536/u-boot-2009.03/include -fno-builtin -ffreestanding -nostdinc -isystem /home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/bin/../lib/gcc/arm-linux-uclibc/4.2.4/include -pipe -DCONFIG_ARM -D__ARM__ -march=armv5te -mabi=apcs-gnu -mno-thumb-interwork -c -o bch/bch_enc4t.o bch/bch_enc4t.S
arm-linux-uclibc-gcc -D__ASSEMBLY__ -g -Os
-fno-strict-aliasing -fno-common -ffixed-r8 -msoft-float -D__KERNEL__ -DTEXT_BASE=0x -I/home/crifan/uboot_as3536/u-boot-2009.03/include -fno-builtin -ffreestanding -nostdinc -isystem /home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/bin/../lib/gcc/arm-linux-uclibc/4.2.4/include -pipe -DCONFIG_ARM -D__ARM__ -march=armv5te -mabi=apcs-gnu -mno-thumb-interwork -c -o bch/bch_dec4t.o bch/bch_dec4t.S
arm-linux-uclibc-gcc -g -Os
-fno-strict-aliasing -fno-common -ffixed-r8 -msoft-float -D__KERNEL__ -DTEXT_BASE=0x -I/home/crifan/uboot_as3536/u-boot-2009.03/include -fno-builtin -ffreestanding -nostdinc -isystem /home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/bin/../lib/gcc/arm-linux-uclibc/4.2.4/include -pipe -DCONFIG_ARM -D__ARM__ -march=armv5te -mabi=apcs-gnu -mno-thumb-interwork -Wall -Wstrict-prototypes -fno-stack-protector -c -o bch/bch_gf.o bch/bch_gf.c
arm-linux-uclibc-gcc -g -Os
-fno-strict-aliasing -fno-common -ffixed-r8 -msoft-float -D__KERNEL__ -DTEXT_BASE=0x -I/home/crifan/uboot_as3536/u-boot-2009.03/include -fno-builtin -ffreestanding -nostdinc -isystem /home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/bin/../lib/gcc/arm-linux-uclibc/4.2.4/include -pipe -DCONFIG_ARM -D__ARM__ -march=armv5te -mabi=apcs-gnu -mno-thumb-interwork -Wall -Wstrict-prototypes -fno-stack-protector -c -o bch/bch_lut.o bch/bch_lut.c
arm-linux-uclibc-gcc -g -Os
-fno-strict-aliasing -fno-common -ffixed-r8 -msoft-float -D__KERNEL__ -DTEXT_BASE=0x -I/home/crifan/uboot_as3536/u-boot-2009.03/include -fno-builtin -ffreestanding -nostdinc -isystem /home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/bin/../lib/gcc/arm-linux-uclibc/4.2.4/include -pipe -DCONFIG_ARM -D__ARM__ -march=armv5te -mabi=apcs-gnu -mno-thumb-interwork -Wall -Wstrict-prototypes -fno-stack-protector -c -o bch/bch_dec.o bch/bch_dec.c
arm-linux-uclibc-ar crv libas3536.a as3536.o asdebug.o ccu.o ssp.o ssp_nor.o enc28j60.o i2c_driver_polling.o as353x_nand.o shuffle.o mpmc_driver.o lowlevel_init.o bch/bch_enc4t.o bch/bch_dec4t.o bch/bch_gf.o bch/bch_lut.o bch/bch_dec.o
可以看到，编译后，每个C文件和汇编文件都对应一个.o文件，但是我又不想在release的时候，release多个.o文件，想要把这些多个.o文件，生成单个的.o文件，所以，此处的需求就是：
已经有了两个汇编文件bch/bch_enc4t.S bch/bch_dec4t.S和四个C文件bch/bch_gf.c bch/bch_lut.c bch/bch_dec.c，如何将这些文件，共同制作出来单个的.o文件。
【解决过程】
1.首先有人会问了，为何你为要多个.o弄成一个.o，而不是多个.o正常的用ar制作出一个.a的库文件？
回答是，此处已经可以实现了你所说的：
arm-linux-uclibc-ar rcv bch_4_s_romtable.a bch/bch_enc4t.o bch/bch_dec4t.o bch/bch_gf.o bch/bch_lut.o bch/bch_dec.o
但是，由于此处uboot的makefile规则所决定的，没法在当前目录中，将其加入上面显示的：
arm-linux-uclibc-ar crv libas3536.a as3536.o asdebug.o ccu.o ssp.o ssp_nor.o enc28j60.o i2c_driver_polling.o as353x_nand.o shuffle.o mpmc_driver.o lowlevel_init.o bch/bch_enc4t.o bch/bch_dec4t.o bch/bch_gf.o bch/bch_lut.o bch/bch_dec.o
中的libas3536.a中，因此最后编译，会找不到bch的相关函数，即使此处用生成好的.a，加入到ar中去制作as3536.a，是可以，但是最后在ld生成uboot的时候会出错，显示File format not recognized：
cd /home/crifan/uboot_as3536/u-boot-2009.03 && arm-linux-uclibc-ld -Bstatic -T /home/crifan/uboot_as3536/u-boot-2009.03/board/ams/as3536/u-boot.lds -Ttext 0x $UNDEF_SYM cpu/arm926ejs/start.o
--start-group lib_generic/libgeneric.a lib_generic/lzma/liblzma.a cpu/arm926ejs/libarm926ejs.a cpu/arm926ejs/ams/libams.a lib_arm/libarm.a fs/cramfs/libcramfs.a fs/fat/libfat.a fs/fdos/libfdos.a fs/jffs2/libjffs2.a fs/reiserfs/libreiserfs.a fs/ext2/libext2fs.a fs/yaffs2/libyaffs2.a net/libnet.a disk/libdisk.a drivers/bios_emulator/libatibiosemu.a drivers/block/libblock.a drivers/dma/libdma.a drivers/fpga/libfpga.a drivers/gpio/libgpio.a drivers/hwmon/libhwmon.a drivers/i2c/libi2c.a drivers/input/libinput.a drivers/misc/libmisc.a drivers/mmc/libmmc.a drivers/mtd/libmtd.a drivers/mtd/nand/libnand.a drivers/mtd/nand_legacy/libnand_legacy.a drivers/mtd/onenand/libonenand.a drivers/mtd/ubi/libubi.a drivers/mtd/spi/libspi_flash.a drivers/net/libnet.a drivers/net/phy/libphy.a drivers/net/sk98lin/libsk98lin.a drivers/pci/libpci.a drivers/pcmcia/libpcmcia.a drivers/spi/libspi.a drivers/rtc/librtc.a drivers/serial/libserial.a drivers/usb/libusb.a drivers/video/libvideo.a common/libcommon.a libfdt/libfdt.a api/libapi.a post/libpost.a board/ams/as3536/libas3536.a --end-group -L /home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/bin/../lib/gcc/arm-linux-uclibc/4.2.4 -lgcc
-Map u-boot.map -o u-boot
arm-linux-uclibc-objdump: bch_4_s_romtable.a: File format not recognized
board/ams/as3536/libas3536.a(as353x_nand.o): In function `as353x_correct_data':
/home/crifan/uboot_as3536/u-boot-2009.03/board/ams/as3536/as353x_nand.c:1111: undefined reference to `bchDecode'
board/ams/as3536/libas3536.a(as353x_nand.o): In function `as353x_calculate_ecc':
/home/crifan/uboot_as3536/u-boot-2009.03/board/ams/as3536/as353x_nand.c:1081: undefined reference to `bchEncodeT4'
当然，如果只是想把bch库加入进入，使得可以正常编译链接通过，那肯定是可以的，只需要简单的，把
bch_4_s_romtable.a加入到uboot根目录下的Make中，即：
$(obj)u-boot:
depend $(SUBDIRS) $(OBJS) $(LIBBOARD) $(LIBS) $(LDSCRIPT)
UNDEF_SYM=`$(OBJDUMP) -x $(LIBBOARD) $(LIBS) |
sed -n -e 's/.*($(SYM_PREFIX)__u_boot_cmd_.*)/-u1/p'|sort|uniq`;
cd $(LNDIR) && $(LD) $(LDFLAGS) $$UNDEF_SYM $(__OBJS)
--start-group $(__LIBS) --end-group $(PLATFORM_LIBS)
-Map u-boot.map -o u-boot
$(obj)u-boot:
depend $(SUBDIRS) $(OBJS) $(LIBBOARD) $(LIBS) $(LDSCRIPT)
UNDEF_SYM=`$(OBJDUMP) -x $(LIBBOARD) $(LIBS) |
sed -n -e 's/.*($(SYM_PREFIX)__u_boot_cmd_.*)/-u1/p'|sort|uniq`;
cd $(LNDIR) && $(LD) $(LDFLAGS) $$UNDEF_SYM $(__OBJS)
--start-group board/ams/as3536/bch/bch_4_s_romtable.a $(__LIBS) --end-group $(PLATFORM_LIBS)
-Map u-boot.map -o u-boot
即可正常编译链接成功，生成正常的uboot了。
但是，此处我希望实现的是，不去改变顶层的uboot中的makefile，而只是在board/ams/as3536/下面，
改动其makefile，达到将此bch加入进去，以使得正常编译通过的目的。
2.而在board/ams/as3536/下面的makefile中，
我尝试了：
LIB = $(obj)lib$(BOARD).a
COBJS := as3536.o asdebug.o ccu.o ssp.o ssp_nor.o enc28j60.o i2c_driver_polling.o as353x_nand.o shuffle.o mpmc_driver.o
#SOBJS := lowlevel_init.o bch/bch_enc4t.o bch/bch_dec4t.o
SOBJS := lowlevel_init.o
#BCH_COBJS := bch/bch_gf.o bch/bch_lut.o bch/bch_dec.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
SOBJS := $(addprefix $(obj),$(SOBJS))
BCH_OBJS :=$(addprefix $(obj),$(BCH_COBJS))
#$(LIB): $(obj).depend $(OBJS) $(SOBJS) $(BCH_COBJS)
# $(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS) $(BCH_COBJS)
$(LIB): $(obj).depend $(OBJS) $(SOBJS)
$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
在LIB = $(obj)lib$(BOARD).a
下面添加一行：
LIB += bch/bch_4_s_romtable.a
结果实际上，make后，也是没有传递到uboot中，还是缺少bch对应的函数。
所以，此处是希望，有了多个c文件和多个汇编文件，如果获得单个object目标文件，以方便后面
arm-linux-uclibc-ar crv libas3536.a as3536.o asdebug.o ccu.o ssp.o ssp_nor.o enc28j60.o i2c_driver_polling.o as353x_nand.o shuffle.o mpmc_driver.o lowlevel_init.o bch/bch_4_s_romtable.o
一样，将这个单个的bch的目前文件，ar加入到libas3536.a里面，这样，最后uboot编译链接，就可以正常了。
3.曾经尝试了：
[crifan@linux-41lh bch]$arm-linux-uclibc-gcc -D__ASSEMBLY__ -g -Os -fno-strict-aliasing -fno-common -ffixed-r8 -msoft-float -D__KERNEL__ -DTEXT_BASE=0x -I/home/crifan/uboot_as3536/u-boot-2009.03/include -fno-builtin -ffreestanding -nostdinc -isystem /home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/bin/../lib/gcc/arm-linux-uclibc/4.2.4/include -pipe -DCONFIG_ARM -D__ARM__ -march=armv5te -mabi=apcs-gnu -mno-thumb-interwork -c -o bch_4_s_romtable.obj bch_gf.c bch_lut.c bch_dec.c bch_enc4t.S bch_dec4t.S -combine
cc1: error: too many filenames given. Type cc1 –help for usage
对于显示的cc1的错误，一直没完全搞懂是什么原因。
因为刚刚试了下，
单个s文件和多个C文件是可以的：
arm-linux-uclibc-gcc -D__ASSEMBLY__ -g -Os
-fno-strict-aliasing -fno-common -ffixed-r8 -msoft-float -D__KERNEL__ -DTEXT_BASE=0x -I/home/crifan/uboot_as3536/u-boot-2009.03/include -fno-builtin -ffreestanding -nostdinc -isystem /home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/bin/../lib/gcc/arm-linux-uclibc/4.2.4/include -pipe -DCONFIG_ARM -D__ARM__ -march=armv5te -mabi=apcs-gnu -mno-thumb-interwork -c -o bch_4_s_romtable.obj bch_gf.c bch_lut.c bch_dec.c bch_enc4t.S -combine
而且，对于as来说，多个汇编也是可以的：
[crifan@linux-41lh bch]$arm-linux-uclibc-as bch_enc4t.S bch_dec4t.S
但是，对于上面的，4个c文件，2个汇编文件，就不能正常编译了。所以，很是迷惑。。。
忘了说了，对于多个C文件，上面的arm-linux-uclibc-gcc是可以正常编译，生成单个目标文件的，只是需要加个参数-combine，详见：
4.刚刚去找了，关于：
cc1: error: too many filenames given
(注:google搜索时，最好把分隔符之类的都去掉，如cc1 error too many filenames given，才能搜到有用信息)
找到了一些：
这个人也是遇到了，但是没人解决。
这人说道“IIRC, –combine -fwhole-program can only be done for C language. The assembler files (.S) are not even run through the compiler, they are just passed down straight to the assembler, so it won’t be using –combine at all. ”
好像我这里的arm-linux-uclibc-gcc，不加-combine，无法同时编译多个c文件。但是对于汇编文件，即使加了，好像同时编译多个c文件，1个汇编文件，也是可以的。也就是说，应该也是识别的，不过是要记得加-D__ASSEMBLY__ 。
中，遇到同样问题，但是最后说是“Replace CFLAGS with CPPFLAGS”就可以解决了。。。 而我这里，是直接手动加的参数，好像和他的不一样。。。。
这个人，好像说到的问题的重点，其也是用的是SUSE，然后遇到了类似的问题，并且都一个个解决了：
“Due to some &non-standardness& of
10.2 the straight setup procedure of MG_ME_V4.1.xx doesn’t work. Here follows how it worked on several workstation running
10.2 both i586 and x86_64.
。。。。。。。
Third issue is again
f77 -O -ffixed-line-length-132 -o decay decay_couplings.o decay.o decay_matrix.o decay_mom.o decay_event.o vegas.o decay_printout.o hdecay.o ran1.o rw_events.o open_file.o alfas_functions.o ../HELAS/lib/libdhelas3.a f77: ../HELAS/lib/libdhelas3.a: No such file or directory make[1]: * [all] Error 1 make[1]: Leaving directory `/home/roberto/MG_ME_V4.1.24/DECAY’ make: * [decay] Error 2
If you still have this problem then change to folder and issue make. You should get
~/MG_ME_V4.1.24/HELAS& make
f77 -O -I. -c httsxx.F
cc1: error: too many filenames given. Type cc1 –help for usage
# 1 &httsxx.F&
make: *** [httsxx.o] Error 1
To fix it you have to edit /usr/lib/gcc-lib/i586-suse-linux/3.3.5/specs Open this file and look for:
*cpp_options:
%(cpp_unique_options) %1 %{m*} %{std*} %{ansi} %{W*&pedantic*} %{w} %{f*} %{g*} %{O*} %{undef}
edit this line replacing &%{O*}& by &-o&
These are all the erros i had to fix to make MG compile on suse linux, 。。。。。。。。”
而我这里，由于用的是交叉编译器，所以，并不能通过直接去改SUSE里面的那些gcc而解决我的问题，估计要重新编译整套arm-linux-交叉编译的工具链才行。
看来问题很可能就是这个版本的SUSE下制作出来的工具链的这个问题。去查看了下，我这里的环境是
openSUSE 11.1，编译器的信息是：
[crifan@linux-41lh bch]$arm-linux-gcc -v
Using built-in specs.
Target: arm-linux-uclibc
Configured with: /home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/gcc-4.2.4/configure --prefix=/usr --build=i386-pc-linux-gnu --host=i386-pc-linux-gnu --target=arm-linux-uclibc --enable-languages=c --with-sysroot=/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir --with-build-time-tools=/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/arm-linux-uclibc/bin --disable-__cxa_atexit --enable-target-optspace --with-gnu-ld --disable-libssp --disable-tls --enable-shared --with-gmp=/home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/gmp --with-mpfr=/home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/mpfr --disable-nls --enable-threads --disable-multilib --with-float=soft --with-abi=apcs-gnu --with-arch=armv5te --with-tune=arm9tdmi : (reconfigured) /home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/gcc-4.2.4/configure --prefix=/usr --build=i386-pc-linux-gnu --host=i386-pc-linux-gnu --target=arm-linux-uclibc --enable-languages=c,c++ --with-sysroot=/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir --with-build-time-tools=/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/arm-linux-uclibc/bin --disable-__cxa_atexit --enable-target-optspace --with-gnu-ld --disable-libssp --disable-tls --enable-shared --with-gmp=/home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/gmp --with-mpfr=/home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/mpfr --disable-nls --enable-threads --disable-multilib --with-float=soft --with-abi=apcs-gnu --with-arch=armv5te --with-tune=arm9tdmi : (reconfigured) /home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/gcc-4.2.4/configure --prefix=/usr --build=i386-pc-linux-gnu --host=i386-pc-linux-gnu --target=arm-linux-uclibc --enable-languages=c,c++ --with-sysroot=/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir --with-build-time-tools=/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/arm-linux-uclibc/bin --disable-__cxa_atexit --enable-target-optspace --with-gnu-ld --disable-libssp --disable-tls --enable-shared --with-gmp=/home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/gmp --with-mpfr=/home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/mpfr --disable-nls --enable-threads --disable-multilib --with-float=soft --with-abi=apcs-gnu --with-arch=armv5te --with-tune=arm9tdmi : (reconfigured) /home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/gcc-4.2.4/configure --prefix=/usr --build=i386-pc-linux-gnu --host=i386-pc-linux-gnu --target=arm-linux-uclibc --enable-languages=c,c++ --with-sysroot=/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir --with-build-time-tools=/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/arm-linux-uclibc/bin --disable-__cxa_atexit --enable-target-optspace --with-gnu-ld --disable-libssp --disable-tls --enable-shared --with-gmp=/home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/gmp --with-mpfr=/home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/mpfr --disable-nls --enable-threads --disable-multilib --with-float=soft --with-abi=apcs-gnu --with-arch=armv5te --with-tune=arm9tdmi
Thread model: posix
gcc version 4.2.4
编译出错时的详细编译信息：
[crifan@linux-41lh bch]$arm-linux-uclibc-gcc -D__ASSEMBLY__ -g -Os
-fno-strict-aliasing -fno-common -ffixed-r8 -msoft-float -D__KERNEL__ -DTEXT_BASE=0x -I/home/crifan/uboot_as3536/u-boot-2009.03/include -fno-builtin -ffreestanding -nostdinc -isystem /home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/bin/../lib/gcc/arm-linux-uclibc/4.2.4/include -pipe -DCONFIG_ARM -D__ARM__ -march=armv5te -mabi=apcs-gnu -mno-thumb-interwork -combine -o bch_4_s_romtable.obj -c bch_enc4t.S bch_dec4t.S bch_gf.c bch_lut.c bch_dec.c -v
Using built-in specs.
Target: arm-linux-uclibc
Configured with: /home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/gcc-4.2.4/configure --prefix=/usr --build=i386-pc-linux-gnu --host=i386-pc-linux-gnu --target=arm-linux-uclibc --enable-languages=c --with-sysroot=/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir --with-build-time-tools=/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/arm-linux-uclibc/bin --disable-__cxa_atexit --enable-target-optspace --with-gnu-ld --disable-libssp --disable-tls --enable-shared --with-gmp=/home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/gmp --with-mpfr=/home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/mpfr --disable-nls --enable-threads --disable-multilib --with-float=soft --with-abi=apcs-gnu --with-arch=armv5te --with-tune=arm9tdmi : (reconfigured) /home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/gcc-4.2.4/configure --prefix=/usr --build=i386-pc-linux-gnu --host=i386-pc-linux-gnu --target=arm-linux-uclibc --enable-languages=c,c++ --with-sysroot=/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir --with-build-time-tools=/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/arm-linux-uclibc/bin --disable-__cxa_atexit --enable-target-optspace --with-gnu-ld --disable-libssp --disable-tls --enable-shared --with-gmp=/home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/gmp --with-mpfr=/home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/mpfr --disable-nls --enable-threads --disable-multilib --with-float=soft --with-abi=apcs-gnu --with-arch=armv5te --with-tune=arm9tdmi : (reconfigured) /home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/gcc-4.2.4/configure --prefix=/usr --build=i386-pc-linux-gnu --host=i386-pc-linux-gnu --target=arm-linux-uclibc --enable-languages=c,c++ --with-sysroot=/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir --with-build-time-tools=/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/arm-linux-uclibc/bin --disable-__cxa_atexit --enable-target-optspace --with-gnu-ld --disable-libssp --disable-tls --enable-shared --with-gmp=/home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/gmp --with-mpfr=/home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/mpfr --disable-nls --enable-threads --disable-multilib --with-float=soft --with-abi=apcs-gnu --with-arch=armv5te --with-tune=arm9tdmi : (reconfigured) /home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/gcc-4.2.4/configure --prefix=/usr --build=i386-pc-linux-gnu --host=i386-pc-linux-gnu --target=arm-linux-uclibc --enable-languages=c,c++ --with-sysroot=/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir --with-build-time-tools=/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/arm-linux-uclibc/bin --disable-__cxa_atexit --enable-target-optspace --with-gnu-ld --disable-libssp --disable-tls --enable-shared --with-gmp=/home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/gmp --with-mpfr=/home/eric/buildroot/buildroot-2009.08/toolchain_build_arm/mpfr --disable-nls --enable-threads --disable-multilib --with-float=soft --with-abi=apcs-gnu --with-arch=armv5te --with-tune=arm9tdmi
Thread model: posix
gcc version 4.2.4
/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/bin/../libexec/gcc/arm-linux-uclibc/4.2.4/cc1 -E -lang-asm -quiet -nostdinc -v -I/home/crifan/uboot_as3536/u-boot-2009.03/include -iprefix /home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/bin/../lib/gcc/arm-linux-uclibc/4.2.4/ -D__ASSEMBLY__ -D__KERNEL__ -DTEXT_BASE=0x -DCONFIG_ARM -D__ARM__ -isystem /home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/bin/../lib/gcc/arm-linux-uclibc/4.2.4/include bch_enc4t.S bch_dec4t.S -msoft-float -march=armv5te -mabi=apcs-gnu -mno-thumb-interwork -mtune=arm9tdmi -fno-strict-aliasing -fno-common -ffixed-r8 -fno-builtin -ffreestanding -fworking-directory -Os -o - |
/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/bin/../lib/gcc/arm-linux-uclibc/4.2.4/../../../../arm-linux-uclibc/bin/as --gdwarf2 -march=armv5te -mfloat-abi=soft -o bch_4_s_romtable.obj
#include &...& search starts here:
#include &...& search starts here:
/home/crifan/uboot_as3536/u-boot-2009.03/include
/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/bin/../lib/gcc/arm-linux-uclibc/4.2.4/include
End of search list.
cc1: error: too many filenames given. Type cc1 --help for usage
/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/bin/../libexec/gcc/arm-linux-uclibc/4.2.4/cc1 -quiet -nostdinc -v -I/home/crifan/uboot_as3536/u-boot-2009.03/include -iprefix /home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/bin/../lib/gcc/arm-linux-uclibc/4.2.4/ -D__ASSEMBLY__ -D__KERNEL__ -DTEXT_BASE=0x -DCONFIG_ARM -D__ARM__ -isystem /home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/bin/../lib/gcc/arm-linux-uclibc/4.2.4/include bch_gf.c bch_lut.c bch_dec.c -quiet -dumpbase bch_gf.c -msoft-float -march=armv5te -mabi=apcs-gnu -mno-thumb-interwork -mtune=arm9tdmi -auxbase-strip bch_4_s_romtable.obj -g -Os -version -fno-strict-aliasing -fno-common -ffixed-r8 -fno-builtin -ffreestanding -o - |
/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/bin/../lib/gcc/arm-linux-uclibc/4.2.4/../../../../arm-linux-uclibc/bin/as -march=armv5te -mfloat-abi=soft -o bch_4_s_romtable.obj
#include &...& search starts here:
#include &...& search starts here:
/home/crifan/uboot_as3536/u-boot-2009.03/include
/home/eric/buildroot/buildroot-2009.08/build_arm/staging_dir/usr/bin/../lib/gcc/arm-linux-uclibc/4.2.4/include
End of search list.
GNU C version 4.2.4 (arm-linux-uclibc)
compiled by GNU C version 4.3.2 [gcc-4_3-branch revision 141291].
GGC heuristics: --param ggc-min-expand=97 --param ggc-min-heapsize=126593
Compiler executable checksum: 07afd283d346e261dbcd0d
此问题有待后续验证：自己单独去ubuntu编译一个工具链，然后用其去编译我的代码，看看是否会出现同样的问题。
5.回来，经过验证，在ubuntu 9.10 + buildroot 2009.11编译出来的EABI版本的arm-linux-交叉编译工具链，
去作上面同样的事情，出现同样的问题:
crifan@crifan-laptop:bch$ arm-linux-gcc -D__ASSEMBLY__ -g -Os
-fno-strict-aliasing -fno-common -ffixed-r8 -msoft-float -D__KERNEL__ -DTEXT_BASE=0x -I/home/crifan/develop/uboot/u-boot-2009.03_toHome/include -fno-builtin -ffreestanding -nostdinc -isystem /home/crifan/develop/buildroot/buildroot-2009.11/output/staging/usr/bin/../lib/gcc/arm-linux-uclibcgnueabi/4.3.4/include -pipe -DCONFIG_ARM -D__ARM__ -march=armv5te -mabi=apcs-gnu -mno-thumb-interwork -c -o bch_4_s_romtable.obj bch_gf.c bch_lut.c bch_dec.c bch_enc4t.S bch_dec4t.S -combine -v
Using built-in specs.
Target: arm-linux-uclibcgnueabi
Configured with: /home/crifan/develop/buildroot/buildroot-2009.11/output/toolchain/gcc-4.3.4/configure --prefix=/usr --build=i386-pc-linux-gnu --host=i386-pc-linux-gnu --target=arm-linux-uclibcgnueabi --enable-languages=c --with-sysroot=/home/crifan/develop/buildroot/buildroot-2009.11/output/staging --with-build-time-tools=/home/crifan/develop/buildroot/buildroot-2009.11/output/staging/usr/arm-linux-uclibcgnueabi/bin --disable-__cxa_atexit --enable-target-optspace --with-gnu-ld --disable-libssp --enable-tls --enable-shared --with-gmp=/home/crifan/develop/buildroot/buildroot-2009.11/output/toolchain/gmp --with-mpfr=/home/crifan/develop/buildroot/buildroot-2009.11/output/toolchain/mpfr --disable-nls --enable-threads --disable-multilib --disable-decimal-float --with-float=soft --with-abi=aapcs-linux --with-arch=armv5te --with-tune=arm9tdmi
Thread model: posix
gcc version 4.3.4 (GCC)
COLLECT_GCC_OPTIONS='-D__ASSEMBLY__' '-g' '-Os' '-fno-strict-aliasing' '-fno-common' '-ffixed-r8' '-msoft-float' '-D__KERNEL__' '-DTEXT_BASE=0x' '-I/home/crifan/develop/uboot/u-boot-2009.03_toHome/include' '-fno-builtin' '-ffreestanding' '-nostdinc' '-isystem' '/home/crifan/develop/buildroot/buildroot-2009.11/output/staging/usr/bin/../lib/gcc/arm-linux-uclibcgnueabi/4.3.4/include' '-pipe' '-DCONFIG_ARM' '-D__ARM__' '-march=armv5te' '-mabi=apcs-gnu' '-mno-thumb-interwork' '-c' '-o' 'bch_4_s_romtable.obj' '-combine' '-v' '-mtune=arm9tdmi'
/home/crifan/develop/buildroot/buildroot-2009.11/output/staging/usr/bin/../libexec/gcc/arm-linux-uclibcgnueabi/4.3.4/cc1 -quiet -nostdinc -v -I/home/crifan/develop/uboot/u-boot-2009.03_toHome/include -iprefix /home/crifan/develop/buildroot/buildroot-2009.11/output/staging/usr/bin/../lib/gcc/arm-linux-uclibcgnueabi/4.3.4/ -D__ASSEMBLY__ -D__KERNEL__ -DTEXT_BASE=0x -DCONFIG_ARM -D__ARM__ -isystem /home/crifan/develop/buildroot/buildroot-2009.11/output/staging/usr/bin/../lib/gcc/arm-linux-uclibcgnueabi/4.3.4/include bch_gf.c bch_lut.c bch_dec.c -quiet -dumpbase bch_gf.c -msoft-float -march=armv5te -mabi=apcs-gnu -mno-thumb-interwork -mtune=arm9tdmi -auxbase-strip bch_4_s_romtable.obj -g -Os -version -fno-strict-aliasing -fno-common -ffixed-r8 -fno-builtin -ffreestanding -o - |
/home/crifan/develop/buildroot/buildroot-2009.11/output/staging/usr/bin/../lib/gcc/arm-linux-uclibcgnueabi/4.3.4/../../../../arm-linux-uclibcgnueabi/bin/as -march=armv5te -mfloat-abi=soft -meabi=gnu -o bch_4_s_romtable.obj
#include &...& search starts here:
#include &...& search starts here:
/home/crifan/develop/uboot/u-boot-2009.03_toHome/include
/home/crifan/develop/buildroot/buildroot-2009.11/output/staging/usr/bin/../lib/gcc/arm-linux-uclibcgnueabi/4.3.4/include
End of search list.
GNU C (GCC) version 4.3.4 (arm-linux-uclibcgnueabi)
compiled by GNU C version 4.4.1, GMP version 4.2.4, MPFR version 2.4.1-p5.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 35aadf35a127a81d2626
COLLECT_GCC_OPTIONS='-D__ASSEMBLY__' '-g' '-Os' '-fno-strict-aliasing' '-fno-common' '-ffixed-r8' '-msoft-float' '-D__KERNEL__' '-DTEXT_BASE=0x' '-I/home/crifan/develop/uboot/u-boot-2009.03_toHome/include' '-fno-builtin' '-ffreestanding' '-nostdinc' '-isystem' '/home/crifan/develop/buildroot/buildroot-2009.11/output/staging/usr/bin/../lib/gcc/arm-linux-uclibcgnueabi/4.3.4/include' '-pipe' '-DCONFIG_ARM' '-D__ARM__' '-march=armv5te' '-mabi=apcs-gnu' '-mno-thumb-interwork' '-c' '-o' 'bch_4_s_romtable.obj' '-combine' '-v' '-mtune=arm9tdmi'
/home/crifan/develop/buildroot/buildroot-2009.11/output/staging/usr/bin/../libexec/gcc/arm-linux-uclibcgnueabi/4.3.4/cc1 -E -lang-asm -quiet -nostdinc -v -I/home/crifan/develop/uboot/u-boot-2009.03_toHome/include -iprefix /home/crifan/develop/buildroot/buildroot-2009.11/output/staging/usr/bin/../lib/gcc/arm-linux-uclibcgnueabi/4.3.4/ -D__ASSEMBLY__ -D__KERNEL__ -DTEXT_BASE=0x -DCONFIG_ARM -D__ARM__ -isystem /home/crifan/develop/buildroot/buildroot-2009.11/output/staging/usr/bin/../lib/gcc/arm-linux-uclibcgnueabi/4.3.4/include bch_enc4t.S bch_dec4t.S -msoft-float -march=armv5te -mabi=apcs-gnu -mno-thumb-interwork -mtune=arm9tdmi -fno-strict-aliasing -fno-common -ffixed-r8 -fno-builtin -ffreestanding -fworking-directory -Os -fno-directives-only -o - |
/home/crifan/develop/buildroot/buildroot-2009.11/output/staging/usr/bin/../lib/gcc/arm-linux-uclibcgnueabi/4.3.4/../../../../arm-linux-uclibcgnueabi/bin/as --gdwarf2 -march=armv5te -mfloat-abi=soft -meabi=gnu -o bch_4_s_romtable.obj
#include &...& search starts here:
#include &...& search starts here:
/home/crifan/develop/uboot/u-boot-2009.03_toHome/include
/home/crifan/develop/buildroot/buildroot-2009.11/output/staging/usr/bin/../lib/gcc/arm-linux-uclibcgnueabi/4.3.4/include
End of search list.
cc1: error: too many filenames given. Type cc1 --help for usage
所以，初步判断，我这里的问题，不是上面那个人说的SUSE的问题，看来还是哪里没搞清楚，有待以后有机会再解决了。
后来，无意间，发现，原来是汇编文件的原因,上面的汇编文件是大S结尾，.S文件，这样编译就会出现：
cc1: error: too many filenames given. Type cc1 –help for usage
而改为正常的小s结尾的.s文件后，即将bch_enc4t.S bch_dec4t.S改为bch_enc4t.s bch_dec4t.s就可以正常编译了。
根本原因不详，个人猜测，好像是汇编的.S是预处理之后的文件吧，不能正常识别为最原始的.s汇编文件，所以不能一起编译。
6. 关于多个多个目前文件合并成单个目标文件的事情，google找到这个帖子：
Re: Can ld combine multiple object files into one?
&& The Solaris ld command has an option to combine multiple object files (ie .o
& files) into one. Does the gnu ld have a similar option? The reason we want to
& do this is to hide certain information — combining multiple object files using
& ar will not do.
See ld documentation for relocatable link — it’s the same ‘-r’ option for
C code, but you need to use ‘-Ur’ for C++ code so that global constructors and destructors are handled properly.“
说的很清楚了，就是说，用ld，可以实现这个目的，不过要注意的是，对于C 代码的，要加参数-r表示生成的是
可重新定位的目标文件（我的理解是，否则就应该是可执行文件了）：
“ -r, -i, –relocatable Generate relocatable output”
而C++代码，还要用-Ur，表示要建立全局构造函数表和析构函数表：
“ -Ur Build global constructor/destructor tables”
此处，试了试：
arm-linux-ld -r -o bch_4_s_noRomTable.obj bch_dec.o bch_gf.o bch_lut.o bch_enc4t.o bch_dec4t.o
就可以正常生成我所需要的单个目标文件/库文件了：
归根到底，还是对底层的这些编译链接等工具不熟悉，否则，就不会浪费这么长时间去搞明白这个简单的问题了：
其中-o 表示述输出文件
另外，对于上面的，多个c文件和多个.S汇编文件，为何用arm-linux-gcc不能同时一起编译，具体原因，
希望知道的，帮忙解释一下，到现在为止，还是不知道其原因呢。。。
将之前的汇编文件的.S后缀变为.s即可用arm-linux-gcc -combine -o outputFile.obj -c file1.c file2.c … file1.s file2.s …
但是，成功编译出来一个outputFile.obj后，用于其他环境，结果却会出错。
现象是，其中有些函数找不到，而这些函数，很明显地，是通过对应的宏去控制的是否编译的
而且的确是可以正常编译的，不知为何-combine这样的方式一次性地将C文件和s汇编文件，一起编译，却没有将对应函数和变量编译进去，很是奇怪
而单独地去编译这些文件，再通过ld将这些obj汇合到一起，却又可以正常使用了。真是怪事。。。后来发现，好像
arm-linux-gcc -combine -march=armv5te -o as3536_linux_bch_eabi_noRomTbl.obj -c bch_dec.c bch_gf.c bch_lut.c bch_enc4t.s bch_dec4t.s
实际只相当于
arm-linux-gcc -combine -march=armv5te -o as3536_linux_bch_eabi_noRomTbl.obj -c bch_enc4t.s bch_dec4t.s
[crifan@linux-41lh bch]$arm-linux-gcc -combine -march=armv5te -o as3536_linux_bch_eabi_all.obj -c bch_dec.c bch_gf.c bch_lut.c bch_enc4t.s bch_dec4t.s
[crifan@linux-41lh bch]$ls -lh
total 520K
-rw-r--r-- 1 crifan develop 2.5K
13:13 as3536_linux_bch_eabi_all.obj
-rw-r--r-- 1 crifan develop 2.5K
13:12 as3536_linux_bch_eabi_noRomTbl.obj
[crifan@linux-41lh bch]$arm-linux-objdump -t as3536_linux_bch_eabi_all.obj
as3536_linux_bch_eabi_all.obj: file format elf32-littlearm
SYMBOL TABLE:
0000002c l .text
bchEncodeT4Loop
bchEncodeT4End
0000020c l .text
bchEncodeT4LastBytes
bchSyndromePolyT4Loop
000004bc l .text
bchDecodeT4End
bchDecodeT4LastBytes
l d .ARM.attributes
.ARM.attributes
bchEncodeT4
bchSyndromePolyT4
[crifan@linux-41lh bch]$arm-linux-gcc -combine -march=armv5te -o as3536_linux_bch_eabi_noRomTbl.obj -c bch_enc4t.s bch_dec4t.s
[crifan@linux-41lh bch]$ls -lh
total 516K
-rw-r--r-- 1 crifan develop 2.5K
13:12 as3536_linux_bch_eabi_noRomTbl.obj
[crifan@linux-41lh bch]$arm-linux-objdump -t as3536_linux_bch_eabi_noRomTbl.obj
as3536_linux_bch_eabi_noRomTbl.obj: file format elf32-littlearm
SYMBOL TABLE:
0000002c l .text
bchEncodeT4Loop
bchEncodeT4End
0000020c l .text
bchEncodeT4LastBytes
bchSyndromePolyT4Loop
000004bc l .text
bchDecodeT4End
bchDecodeT4LastBytes
l d .ARM.attributes
.ARM.attributes
bchEncodeT4
bchSyndromePolyT4
后来经过尝试，直接这么操作即可：
arm-linux-gcc -combine -mabi=aapcs-linux -mfloat-abi=soft -march=armv5te -o bch_eabi_asm.obj -c bch_enc4t.s bch_dec4t.s
arm-linux-gcc -combine -mabi=aapcs-linux -mfloat-abi=soft -march=armv5te -o bch_eabi_cCode.obj -c bch_dec.c bch_gf.c bch_lut.c
arm-linux-ld -r -o bch_as353x_linux.objs bch_eabi_asm.obj bch_eabi_cCode.obj
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