[uClibc] gcc-3.4.x toolchain from uClibc.org result error when make zImage for uClinux-2.4.24

[Rick LU]

Hi list,

I had install toolchain and uc-libc shipped with the SMDK2510
board. They worked well until I want to begin to use uClibc.

I exported the gcc-3.4.x toolchain from uClibc.org and modify the
Makefile to generate a toolchain and uClibc for my board. During make
process I choose:
  * no PIC
  * generic ARM CPU
  * no large file support, etc.

I have not modified other configurations including the value of
KERNEL_SOURCE in
toolchain/gcc-3.4.x/toolchain_build_arm/uClibc/.config, which means
the toolchain is compiled with the kernel-headers-2.4.25.tar.bz2
downloaded automatically.

After the toolchain is built, I do
[root at localhost include]# pwd
/opt/toolchain/gcc-3.4.x/toolchain_arm/include
[root at localhost include]# mv asm OFF.asm
[root at localhost include]# mv linux/ OFF.linux
[root at localhost include]# ln -s /home/linux-2.4.24/include/linux/ linux
[root at localhost include]# ln -s /home/linux-2.4.24/include/asm

Where /home/linux-2.4.24 is the uClinux kernel source for my board.

Then I compile my userland with this new gcc, binutils, and uClibc, I
met minor problems, but after fixing them, I can succeed in builing
the userland. The flthdr message of some of the binaries in userland
compiled by the original toolchain and the ones compiled by the new
toolchain are identical.

After that I go to /home/linux-2.4.24 and make clean and make
zImage. Here I get some error:

make[1]: Entering directory `/home/linux-2.4.24/arch/armnommu/kernel'
arm-linux-gcc -D__KERNEL__ -I/home/linux-2.4.24/include -Wall
-Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing
-fno-common -fno-common -pipe -fno-builtin -D__linux__ -DNO_MM
-mapcs-32 -march=armv4 -malignment-traps -msoft-float -nostdinc
-iwithprefix include -DKBUILD_BASENAME=armksyms -DEXPORT_SYMTAB -c
armksyms.c armksyms.c:93:1: pasting "__kstrtab_kern_fp_enter" and "["
does not give a valid preprocessing token armksyms.c:93:1: pasting "&"
and "fp_enter" does not give a valid preprocessing token
armksyms.c:94:1: pasting "__kstrtab_fp_printk" and "[" does not give a
valid preprocessing token armksyms.c:94:1: pasting "&" and "printk"
does not give a valid preprocessing token armksyms.c:95:1: pasting
"__kstrtab_fp_send_sig" and "[" does not give a valid preprocessing
token armksyms.c:95:1: pasting "&" and "send_sig" does not give a
valid preprocessing token make[1]: *** [armksyms.o] Error 1 make[1]:
Leaving directory `/home/linux-2.4.24/arch/armnommu/kernel' make: ***
[_dir_arch/armnommu/kernel] Error 2

The relative lines are as following:

     80 
     81 #define EXPORT_SYMBOL_ALIAS(sym,orig)           \
     82  const char __kstrtab_##sym##[]                 \
     83   __attribute__((section(".kstrtab"))) =        \
     84     __MODULE_STRING(sym);                       \
     85  const struct module_symbol __ksymtab_##sym     \
     86   __attribute__((section("__ksymtab"))) =       \
     87     { (unsigned long)&##orig, __kstrtab_##sym };
     88 
     89 /*
     90  * floating point math emulator support.
     91  * These symbols will never change their calling convention...
     92  */
     93 EXPORT_SYMBOL_ALIAS(kern_fp_enter,fp_enter);
     94 EXPORT_SYMBOL_ALIAS(fp_printk,printk);
     95 EXPORT_SYMBOL_ALIAS(fp_send_sig,send_sig);


I tried not to create links in toolchain as shown above but the result
is same. I tried to let the KERNEL_SOURCE in
toolchain/gcc-3.4.x/toolchain_build_arm/uClibc/.config equal to
/home/linux-2.4.24 but get some include-file error when building the
toolchain, which I can't fix.

I have no idea on this error. Any advise is appreciated. Thanks in
advance.

Rick

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