From: Arnd Bergmann <arnd@arndb.de>
To: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Andi Kleen <ak@linux.intel.com>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/7] ARM: disallow combining XIP and LTO
Date: Wed, 21 Feb 2018 12:50:38 +0100 [thread overview]
Message-ID: <CAK8P3a3S=PRwOnvtzFENMC+iTLRMiibpMmSS=GynLMSfN1OpZA@mail.gmail.com> (raw)
In-Reply-To: <nycvar.YSQ.7.76.1802202158020.31644@knanqh.ubzr>
On Wed, Feb 21, 2018 at 4:01 AM, Nicolas Pitre <nicolas.pitre@linaro.org> wrote:
> On Tue, 20 Feb 2018, Arnd Bergmann wrote:
>
>> This fails during deflate_xip_data.sh
>>
>> /home/arnd/cross-gcc/bin/arm-linux-gnueabi-objcopy -O binary -R .comment -S vmlinux arch/arm/boot/xipImage && /bin/bash -c '/git/arm-soc/arch/arm/boot/deflate_xip_data.sh vmlinux arch/arm/boot/xipImage || { rm -f arch/arm/boot/xipImage; false; }'
>> make -f /git/arm-soc/scripts/Makefile.modpost
>> + sym_val __data_loc
>> + sed -n / __data_loc$/{s/ .*$//p;q}
>> + /home/arnd/cross-gcc/bin/arm-linux-gnueabi-gcc-nm vmlinux
>> /home/arnd/cross-gcc/lib/gcc/arm-linux-gnueabi/8.0.1/../../../../arm-linux-gnueabi/bin/nm terminated with signal 13 [Broken pipe]
>> + local val=ac74c0f4
>> + [ ac74c0f4 ]
>> + echo 2893332724
>> + __data_loc=2893332724
>> + sym_val _edata_loc
>> + /home/arnd/cross-gcc/bin/arm-linux-gnueabi-gcc-nm vmlinux
>> + sed -n / _edata_loc$/{s/ .*$//p;q}
>> /home/arnd/cross-gcc/lib/gcc/arm-linux-gnueabi/8.0.1/../../../../arm-linux-gnueabi/bin/nm terminated with signal 13 [Broken pipe]
>> + local val=ac7b8744
>> + [ ac7b8744 ]
>> + echo 2893776708
>> + _edata_loc=2893776708
>> + sym_val _xiprom
>> + sed -n / _xiprom$/{s/ .*$//p;q}
>> + /home/arnd/cross-gcc/bin/arm-linux-gnueabi-gcc-nm vmlinux
>> /home/arnd/cross-gcc/lib/gcc/arm-linux-gnueabi/8.0.1/../../../../arm-linux-gnueabi/bin/nm terminated with signal 13 [Broken pipe]
>>
>> Obviously we want to make the combination work, no idea why it doesn't.
>>
>
> You should move this to config XIP_DEFLATED_DATA instead.
Right, makes sense. I'd still prever nm to not crash, but that would be a small
improvement.
Arnd
next prev parent reply other threads:[~2018-02-21 11:50 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-20 21:59 [PATCH 0/7] ARM: hacks for link-time optimization Arnd Bergmann
2018-02-20 21:59 ` [PATCH 1/7] ARM: disallow combining XIP and LTO Arnd Bergmann
2018-02-21 3:01 ` Nicolas Pitre
2018-02-21 11:50 ` Arnd Bergmann [this message]
2018-02-21 15:13 ` Nicolas Pitre
2018-03-12 2:40 ` Nicolas Pitre
2018-03-12 13:52 ` Arnd Bergmann
2018-03-12 16:46 ` Arnd Bergmann
2018-03-12 17:00 ` Nicolas Pitre
2018-03-12 17:05 ` Nicolas Pitre
2018-03-12 17:07 ` Arnd Bergmann
2018-02-20 21:59 ` [PATCH 2/7] ARM: LTO: avoid THUMB2_KERNEL+LTO Arnd Bergmann
2018-02-21 3:12 ` Nicolas Pitre
2018-02-21 11:48 ` Arnd Bergmann
2018-03-07 18:30 ` Matthias Kaehlcke
2018-03-07 18:52 ` Nicolas Pitre
2018-02-20 21:59 ` [PATCH 3/7] [HACK] pass endianess flag to LTO linker Arnd Bergmann
2018-02-21 3:15 ` Nicolas Pitre
2018-02-21 9:44 ` Arnd Bergmann
2018-02-21 8:37 ` Ard Biesheuvel
2018-02-21 9:48 ` Arnd Bergmann
2018-02-21 10:09 ` Ard Biesheuvel
2018-02-21 13:00 ` Arnd Bergmann
2018-02-20 21:59 ` [PATCH 4/7] ARM: io-acorn: fix LTO linking without CONFIG_PRINTK Arnd Bergmann
2018-02-20 21:59 ` [PATCH 5/7] ARM: fix __inflate_kernel_data stack warning for LTO Arnd Bergmann
2018-02-21 3:26 ` Nicolas Pitre
2018-02-20 21:59 ` [PATCH 6/7] ARM: mark assembler-referenced symbols as __visible Arnd Bergmann
2018-02-20 21:59 ` [PATCH 7/7] efi: disable LTO for EFI stub Arnd Bergmann
2018-12-17 22:50 ` [PATCH 0/7] ARM: hacks for link-time optimization Peter Zijlstra
2018-12-18 0:08 ` Andi Kleen
2018-12-18 9:18 ` Peter Zijlstra
2018-12-18 10:00 ` Peter Zijlstra
2018-12-21 14:23 ` Paul E. McKenney
2018-12-21 17:20 ` Andi Kleen
2018-12-21 18:00 ` Paul E. McKenney
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