linux-kernel - Re: [PATCH] ARM: add a private asm/unaligned.h

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Message-ID: <20171030155511.GQ20805@n2100.armlinux.org.uk>
Date:   Mon, 30 Oct 2017 15:55:12 +0000
From:   Russell King - ARM Linux <linux@...linux.org.uk>
To:     Gregory CLEMENT <gregory.clement@...e-electrons.com>
Cc:     Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Arnd Bergmann <arnd@...db.de>,
        Aaro Koskinen <aaro.koskinen@....fi>,
        Petr Cvek <petrcvekcz@...il.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Andrea Adami <andrea.adami@...il.com>,
        Romain Izard <romain.izard.pro@...il.com>,
        Sven Schmidt <4sschmid@...ormatik.uni-hamburg.de>,
        Robert Jarzmik <robert.jarzmik@...e.fr>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] ARM: add a private asm/unaligned.h

On Mon, Oct 30, 2017 at 04:33:07PM +0100, Gregory CLEMENT wrote:
> Humm no, actually it was with the wrong branch. If I have the patch
> "ARM: verify size of zImage" then arch/arm/boot/compressed/vmlinux is
> not generated.
> 
> But if I remove this patch then I can generate this file and so:
> arm-linux-gnueabi-readelf -S ../build/arch/arm/boot/compressed/vmlinux
> There are 22 section headers, starting at offset 0x4b402c:
> 
> Section Headers:
>   [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
>   [ 0]                   NULL            00000000 000000 000000 00      0   0  0
>   [ 1] .text             PROGBITS        00000000 010000 005ef8 00  AX  0   0 32
>   [ 2] .rodata           PROGBITS        00005ef8 015ef8 000d4c 00   A  0   0  4
>   [ 3] .piggydata        PROGBITS        00006c44 016c44 48a552 00   A  0   0  1
>   [ 4] .got.plt          PROGBITS        00491198 4a1198 00000c 04  WA  0   0  4
>   [ 5] .got              PROGBITS        004911a4 4a11a4 000028 00  WA  0   0  4
>   [ 6] .pad              PROGBITS        004911cc 4a11cc 000004 00  WA  0   0  1
>   [ 7] .bss              NOBITS          004911d0 4a11d0 00001c 00  WA  0   0  4
>   [ 8] .stack            NOBITS          004911f0 4a11d0 001000 00  WA  0   0  1
>   [ 9] .comment          PROGBITS        00000000 4a11d0 00001c 01  MS  0   0  1
>   [10] .ARM.attributes   ARM_ATTRIBUTES  00000000 4a11ec 00002d 00      0   0  1
>   [11] .debug_line       PROGBITS        00000000 4a1219 00281b 00      0   0  1
>   [12] .debug_info       PROGBITS        00000000 4a3a34 0066cb 00      0   0  1
>   [13] .debug_abbrev     PROGBITS        00000000 4aa0ff 0013ea 00      0   0  1
>   [14] .debug_aranges    PROGBITS        00000000 4ab4f0 0001a8 00      0   0  8
>   [15] .debug_str        PROGBITS        00000000 4ab698 0019b4 01  MS  0   0  1
>   [16] .debug_ranges     PROGBITS        00000000 4ad050 000640 00      0   0  8
>   [17] .debug_frame      PROGBITS        00000000 4ad690 001010 00      0   0  4
>   [18] .debug_loc        PROGBITS        00000000 4ae6a0 003643 00      0   0  1
>   [19] .symtab           SYMTAB          00000000 4b1ce4 0015b0 10     20 225  4
>   [20] .strtab           STRTAB          00000000 4b3294 000cc5 00      0   0  1
>   [21] .shstrtab         STRTAB          00000000 4b3f59 0000d2 00      0   0  1

I don't like readelf's output - please can you post the output of
arm-linux-objdump -h ../build/arch/arm/boot/compressed/vmlinux
instead.

Thanks.

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
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