[U-Boot] Recommended MIPS toolchain

[Vasili Galka <vvv444@gmail.com>]

Hi Daniel,

On Wed, Aug 20, 2014 at 1:23 PM, Daniel Schwierzeck
<daniel.schwierzeck@gmail.com> wrote:
>
>
>
> On 20.08.2014 11:35, Vasili Galka wrote:
> > Hi,
> >
> > What is the recommended tool-chain to verify compilation of MIPS boards?
>
> you could try
>
> Denx ELDK 5.5 for MIPS
> http://www.denx.de/wiki/ELDK-5/WebHome
>
> or
>
> Mentor Sourcery CodeBench Lite Edition for MIPS ELF
> https://sourcery.mentor.com/GNUToolchain/subscription3537?lite=MIPS
>
> >
> > I tried the one from
> > https://www.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.9.0/
> > But it does not work, throws plenty of errors about hard/soft float.
>
> Similar to ARM you can use the built-in libgcc implementation of U-Boot
> with "export USE_PRIVATE_LIBGCC=yes" (before Kbuild/Kconfig) or
> "CONFIG_USE_PRIVATE_LIBGCC=y".
>
> Actually you would need a full multilib toolchain with different libgcc
> or multiple toolchains to build all BE/LE and hard-float/soft-float
> variants. But that is not feasible, so you should always set
> USE_PRIVATE_LIBGCC. USE_PRIVATE_LIBGCC is also required for ELDK toolchains.
>
> BTW: "MAKEALL -a mips" with the kernel.org toolchain and
> USE_PRIVATE_LIBGCC works
>
> --
> - Daniel

Strangely, I still fail to build.
I'm trying on u-boot/master 6d1966e12 (dated Aug 1st 2014)
Building with the following commands, on clean build directory:

export BUILD_DIR=/home/lab/dev/u-boot/out/all_mips
export USE_PRIVATE_LIBGCC=yes
export CROSS_COMPILE=mips-linux-
./MAKEALL -a mips

Here is what I get with the toolchain from kernel.org:

Building qemu_mips board...
   text       data        bss        dec        hex    filename
 223063       8160     217752     448975      6d9cf
/home/lab/dev/u-boot/out/all_mips/u-boot
mips-linux-ld.bfd: Warning: u-boot uses -msoft-float (set by
arch/mips/cpu/mips32/built-in.o),
/usr/mips-linux/bin/../lib/gcc/mips-linux/4.9.0/libgcc.a(_lshrdi3.o)
uses -mhard-float
mips-linux-ld.bfd: Warning: u-boot uses -msoft-float (set by
arch/mips/cpu/mips32/built-in.o),
/usr/mips-linux/bin/../lib/gcc/mips-linux/4.9.0/libgcc.a(_ashldi3.o)
uses -mhard-float
Building qemu_mipsel board...
make[1]: *** [u-boot] Error 1
make: *** [sub-make] Error 2
mips-linux-size: '/home/lab/dev/u-boot/out/all_mips/u-boot': No such file
mips-linux-ld.bfd:
/usr/mips-linux/bin/../lib/gcc/mips-linux/4.9.0/libgcc.a(_lshrdi3.o):
compiled for a big endian system and target is little endian
mips-linux-ld.bfd:
/usr/mips-linux/bin/../lib/gcc/mips-linux/4.9.0/libgcc.a(_lshrdi3.o):
endianness incompatible with that of the selected emulation
mips-linux-ld.bfd: failed to merge target specific data of file
/usr/mips-linux/bin/../lib/gcc/mips-linux/4.9.0/libgcc.a(_lshrdi3.o)
mips-linux-ld.bfd:
/usr/mips-linux/bin/../lib/gcc/mips-linux/4.9.0/libgcc.a(_ashldi3.o):
compiled for a big endian system and target is little endian
mips-linux-ld.bfd:
/usr/mips-linux/bin/../lib/gcc/mips-linux/4.9.0/libgcc.a(_ashldi3.o):
endianness incompatible with that of the selected emulation
mips-linux-ld.bfd: failed to merge target specific data of file
/usr/mips-linux/bin/../lib/gcc/mips-linux/4.9.0/libgcc.a(_ashldi3.o)
make[1]: *** [u-boot] Error 1
make: *** [sub-make] Error 2


and here is what I get with Mentor Sourcery CodeBench Lite Edition:
(Replacing to CROSS_COMPILE=mips-sde-elf-)

Building qemu_mips board...
arch/mips/cpu/mips32/start.o: error adding symbols: Bad value
make[1]: *** [u-boot] Error 1
make: *** [sub-make] Error 2
mips-sde-elf-size: '/home/lab/dev/u-boot/out/all_mips/u-boot': No such file
mips-sde-elf-ld: board/qemu-mips/lowlevel_init.o: warning: linking
abicalls files with non-abicalls files
mips-sde-elf-ld: arch/mips/cpu/mips32/cpu.o: warning: linking abicalls
files with non-abicalls files
/home/lab/dev/u-boot/common/cli_simple.c: In function 'process_macros':
/home/lab/dev/u-boot/common/cli_simple.c:73:2: warning: format '%zd'
expects argument of type 'signed size_t', but argument 2 has type
'__kernel_size_t' [-Wformat=]
  debug_parser("[PROCESS_MACROS] INPUT len %zd: \"%s\"\n", strlen(input),
  ^
/home/lab/dev/u-boot/common/cli_simple.c:162:2: warning: format '%zd'
expects argument of type 'signed size_t', but argument 2 has type
'__kernel_size_t' [-Wformat=]
  debug_parser("[PROCESS_MACROS] OUTPUT len %zd: \"%s\"\n",
  ^
/home/lab/dev/u-boot/lib/lzma/LzmaTools.c: In function
'lzmaBuffToBuffDecompress':
/home/lab/dev/u-boot/lib/lzma/LzmaTools.c:94:5: warning: format '%zx'
expects argument of type 'size_t', but argument 2 has type 'SizeT'
[-Wformat=]
     debug("LZMA: Uncompresed size............ 0x%zx\n", outSizeFull);
     ^
/home/lab/dev/u-boot/lib/lzma/LzmaTools.c:95:5: warning: format '%zx'
expects argument of type 'size_t', but argument 2 has type 'SizeT'
[-Wformat=]
     debug("LZMA: Compresed size.............. 0x%zx\n", compressedSize);
     ^
/home/lab/dev/u-boot/lib/lzma/LzmaTools.c:115:5: warning: format '%zx'
expects argument of type 'size_t', but argument 2 has type 'SizeT'
[-Wformat=]
     debug("LZMA: Uncompresed ................ 0x%zx\n", outProcessed);
     ^
/home/lab/dev/u-boot/common/cmd_nvedit.c: In function 'do_env_export':
/home/lab/dev/u-boot/common/cmd_nvedit.c:914:3: warning: format '%zX'
expects argument of type 'size_t', but argument 3 has type 'unsigned
int' [-Wformat=]
   sprintf(buf, "%zX", (size_t)len);
   ^
/home/lab/dev/u-boot/common/cmd_nvedit.c: In function 'do_env_import':
/home/lab/dev/u-boot/common/cmd_nvedit.c:1047:3: warning: format '%zu'
expects argument of type 'size_t', but argument 2 has type 'unsigned
int' [-Wformat=]
   printf("## Info: input data size = %zu = 0x%zX\n", size, size);
   ^
/home/lab/dev/u-boot/common/cmd_nvedit.c:1047:3: warning: format '%zX'
expects argument of type 'size_t', but argument 3 has type 'unsigned
int' [-Wformat=]
/home/lab/dev/u-boot/lib/hashtable.c: In function 'hexport_r':
/home/lab/dev/u-boot/lib/hashtable.c:605:2: warning: format '%zu'
expects argument of type 'size_t', but argument 5 has type 'unsigned
int' [-Wformat=]
  debug("EXPORT  table = %p, htab.size = %d, htab.filled = %d, "
  ^
/home/lab/dev/u-boot/lib/hashtable.c:661:5: warning: format '%zu'
expects argument of type 'size_t', but argument 2 has type 'unsigned
int' [-Wformat=]
     "but need %zu\n", size, totlen + 1);
     ^
/home/lab/dev/u-boot/lib/hashtable.c:661:5: warning: format '%zu'
expects argument of type 'size_t', but argument 3 has type 'unsigned
int' [-Wformat=]
/home/lab/dev/u-boot/lib/hashtable.c: In function 'himport_r':
/home/lab/dev/u-boot/lib/hashtable.c:793:3: warning: format '%zu'
expects argument of type 'size_t', but argument 2 has type 'unsigned
int' [-Wformat=]
   debug("himport_r: can't malloc %zu bytes\n", size);
   ^
mips-sde-elf-ld: arch/mips/cpu/mips32/start.o: relocation R_MIPS_HI16
against `lowlevel_init' can not be used when making a shared object;
recompile with -fPIC
arch/mips/cpu/mips32/start.o: error adding symbols: Bad value
make[1]: *** [u-boot] Error 1
make: *** [sub-make] Error 2

I would appreciate your assistance.

Best,
Vasili