linux-kernel - Re: [PATCH] arch/score/include/uapi/asm/ptrace.h: Add prefix 'SCORE

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Date:	Sun, 22 Jun 2014 08:02:04 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	Chen Gang <gang.chen.5i5j@...il.com>,
	Liqin Chen <liqin.linux@...il.com>,
	Lennox Wu <lennox.wu@...il.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] arch/score/include/uapi/asm/ptrace.h: Add prefix 'SCORE_'
 for related macros

On 06/22/2014 07:53 AM, Guenter Roeck wrote:
> On 06/21/2014 10:33 PM, Chen Gang wrote:
>
> [ ... ]
>
>>> Any idea where to find a cross-compile toolchain for this architecture ?
>>>
>>
>> I use latest source code of gcc and binutils with git.
>>
>>    related source code:
>>
>>      git://sourceware.org/git/binutils-gdb.git
>>      git://gcc.gnu.org/git/gcc.git
>>
>> Issues:
>>
>>    For binutils, have to use the latest one (I have fixed one segment
>>    fault issue of gas for score, and integrated into gas main line by
>>    maintainer in Jun 13, 2014).
>>
>>    For gcc (after binutils has installed), when building glibc, may need
>>    modify the absolute path for score-elf-gas, score-elf-ld ... in
>>    related auto-generated file.
>>
>>    Under ubuntu (but under fedora, it is OK), may need export
>>    LD_LIBRARY_PATH=/usr/local/lib for searching libmpfr.so.
>>
>> My current binary informations:
>>
>>    root@...en:/upstream/toolchain/binutils-gdb# /usr/local/bin/score-elf-ld -v
>>    GNU ld (GNU Binutils) 2.24.51.20140609
>>    root@...en:/upstream/toolchain/binutils-gdb# /usr/local/bin/score-elf-as -v
>>    GNU assembler version 2.24.51 (score-elf) using BFD version (GNU Binutils) 2.24.51.20140609
>>    root@...en:/upstream/toolchain/binutils-gdb# /usr/local/bin/score-elf-gcc -v
>>    Using built-in specs.
>>    COLLECT_GCC=/usr/local/bin/score-elf-gcc
>>    COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/score-elf/4.10.0/lto-wrapper
>>    Target: score-elf
>>    Configured with: ../gcc/configure --without-header --disable-nls --enable-language=c --disable-threads --disable-shared --enable-werror=no target_configargs=enable_vtable_verify=yes --target=score-elf --enable-obsolete
>>    Thread model: single
>>    gcc version 4.10.0 20140530 (experimental) (GCC)
>>
>
> I did that, and managed to build gcc.
>
> However, when trying to compile score defconfig, I get internal compiler errors in cc1
> when compiling drivers/tty/tty_mutex.o and block/elevator.o.
>
>   CC      block/elevator.o
> score-elf-gcc: internal compiler error: Segmentation fault (program cc1)
> 0x40c073 execute
>      ../../gcc/gcc/gcc.c:2848
> Please submit a full bug report,
> with preprocessed source if appropriate.
> Please include the complete backtrace with any bug report.
> See <http://gcc.gnu.org/bugs.html> for instructions.
> make[1]: *** [block/elevator.o] Error 4
> make: *** [block/elevator.o] Error 2
>
> Do you see that as well ?
>
> This is with
>
> GNU assembler version 2.24.51 (score-elf) using BFD version (GNU Binutils) 2.24.51.20140622
>
> and gcc configured with:
>
> Configured with: ../gcc/configure --prefix=/opt/kernel/score --program-prefix=score-elf- \
> --target=score-elf --without-header --disable-nls --enable-languages=c --disable-threads \
> --disable-shared --enable-werror=no target_configargs=enable_vtable_verify=yes \
> --enable-obsolete --disable-libssp --disable-libquadmath
>
> Tip of gcc source is commit d8686b0aa945a, tip of binutils source is commit d17c74c1d41.
> Your assembler fix is included in this version of binutils.
>

Never mind, turns out I get score:defconfig to compile when using the tip of the gcc 4.9 branch.

Guenter

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