Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753841AbaF3Bmt (ORCPT ); Sun, 29 Jun 2014 21:42:49 -0400 Received: from mail-pd0-f181.google.com ([209.85.192.181]:62391 "EHLO mail-pd0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753796AbaF3Bmr (ORCPT ); Sun, 29 Jun 2014 21:42:47 -0400 Message-ID: <53B0C092.6020704@gmail.com> Date: Mon, 30 Jun 2014 09:42:42 +0800 From: Chen Gang User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Guenter Roeck , Liqin Chen , Lennox Wu CC: "linux-kernel@vger.kernel.org" , David Rientjes Subject: Re: [PATCH] arch/score/include/uapi/asm/ptrace.h: Add prefix 'SCORE_' for related macros References: <53A66000.4010208@gmail.com> <53A6669B.1010701@roeck-us.net> <53A66A92.9040106@gmail.com> <53A6EDF6.2030203@roeck-us.net> <53A6EFEC.1020207@roeck-us.net> <53A79905.9020007@gmail.com> <53A97BF6.1060203@gmail.com> <53A98EBA.6050900@roeck-us.net> <53AA17C5.4030304@gmail.com> <53AD437E.6050000@gmail.com> In-Reply-To: <53AD437E.6050000@gmail.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 06/27/2014 06:12 PM, Chen Gang wrote: > On 06/25/2014 08:28 AM, Chen Gang wrote: >> On 06/24/2014 10:44 PM, Guenter Roeck wrote: >>> On 06/24/2014 06:24 AM, Chen Gang wrote: >>>> On 06/23/2014 11:03 AM, Chen Gang wrote: >>>>> On 06/22/2014 11:02 PM, Guenter Roeck wrote: >>>>>> On 06/22/2014 07:53 AM, Guenter Roeck wrote: >>>>>>> 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 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. >>>>>>> >>>> >>>> Can we repeated this issue, or it is random? I have try it use my >>>> current gcc version, it has no issue. >>>> >>>> If it can be repeated in the latest version, I shall use version compine >>>> (and try step by step) to fix it. >>>> >>>> If real random issue, if possible, please help repeated and generate >>>> coredump file, and put it to a place to let me get back for analysing. >>>> >>> I got the same error each time. You should be able to reproduce it by >>> checking out the latest gcc. If that doesn't produce the error, try >>> checking out sha d8686b0aa945a. I didn't keep that compiler after the tip >>> of the gcc 4.9 branch worked, so I'd have to rebuild it myself >>> to reproduce it myself. >>> >>> Note that compilation of libssp failed with d8686b0aa945a, which is why >>> I disabled it. I didn't try to build it with 4.9. >>> gcc members response quickly, and confirm it, the related fix patch which is made by a gcc member and I, have applied into latest gcc source code. So... I finished it within this month (this thread will be end)! :-) Thanks. > > And I guess, I have found the root cause, and sent related information > to gcc mailing list (also cc to you). And one temporary fix below (can > cross compile score defconfig successfully for latest gcc): > > diff --git a/gcc/c/c-decl.c b/gcc/c/c-decl.c > index def10a2..af49601 100644 > --- a/gcc/c/c-decl.c > +++ b/gcc/c/c-decl.c > @@ -2300,15 +2300,6 @@ merge_decls (tree newdecl, tree olddecl, tree newtype, tree oldtype) > > if (CODE_CONTAINS_STRUCT (TREE_CODE (olddecl), TS_DECL_WITH_VIS)) > { > - /* Merge the section attribute. > - We want to issue an error if the sections conflict but that > - must be done later in decl_attributes since we are called > - before attributes are assigned. */ > - if ((DECL_EXTERNAL (olddecl) || TREE_PUBLIC (olddecl) || TREE_STATIC (olddecl)) > - && DECL_SECTION_NAME (newdecl) == NULL > - && DECL_SECTION_NAME (olddecl)) > - set_decl_section_name (newdecl, DECL_SECTION_NAME (olddecl)); > - > /* Copy the assembler name. > Currently, it can only be defined in the prototype. */ > COPY_DECL_ASSEMBLER_NAME (olddecl, newdecl); > > I shall continue for it, and provide the final property fix for it. > > Thanks. > >> >> Thank you very much for your work. >> >> It is my chance to fix gcc issues which I have planed, I shall continue >> based on it, hope I can finish within this month (within 2014-06-30). >> >> >> Thanks. >> > -- Chen Gang Open, share, and attitude like air, water, and life which God blessed -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/