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Message-ID: <8760aw3c5p.fsf@free-electrons.com>
Date: Mon, 30 Oct 2017 16:09:38 +0100
From: Gregory CLEMENT <gregory.clement@...e-electrons.com>
To: Ard Biesheuvel <ard.biesheuvel@...aro.org>
Cc: Arnd Bergmann <arnd@...db.de>,
Aaro Koskinen <aaro.koskinen@....fi>,
Robert Jarzmik <robert.jarzmik@...e.fr>,
Russell King - ARM Linux <linux@...linux.org.uk>,
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>,
Petr Cvek <petrcvekcz@...il.com>,
"linux-arm-kernel\@lists.infradead.org"
<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] ARM: add a private asm/unaligned.h
Hi Ard,
On lun., oct. 30 2017, Ard Biesheuvel <ard.biesheuvel@...aro.org> wrote:
> On 30 October 2017 at 15:05, Gregory CLEMENT
> <gregory.clement@...e-electrons.com> wrote:
>> Hi Ard,
>>
>> On lun., oct. 30 2017, Ard Biesheuvel <ard.biesheuvel@...aro.org> wrote:
>>
> ...
>>>
>>> Could you please share the output of 'readelf -S' for those vmlinux
>>> decompressor images?
>>
>> Here it is:
>>
>> In the meantime I also used an arm-linux-gnueabihf- in case it could be
>> related to the toolchain, I had te same issue and here it is the readelf
>> output:
>> arm-linux-gnueabi-readelf -S ../build/vmlinux
>
> Actually, I meant the 'vmlinux' file in arch/arm/boot/compressed, not
> the main one.
Here it is then:
arm-linux-gnueabi-readelf -S ../build/arch/arm/boot/compressed/vmlinux
There are 22 section headers, starting at offset 0x4b3e14:
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 48a33a 00 A 0 0 1
[ 4] .got.plt PROGBITS 00490f80 4a0f80 00000c 04 WA 0 0 4
[ 5] .got PROGBITS 00490f8c 4a0f8c 000028 00 WA 0 0 4
[ 6] .pad PROGBITS 00490fb4 4a0fb4 000004 00 WA 0 0 1
[ 7] .bss NOBITS 00490fb8 4a0fb8 00001c 00 WA 0 0 4
[ 8] .stack NOBITS 00490fd8 4a0fb8 001000 00 WA 0 0 1
[ 9] .comment PROGBITS 00000000 4a0fb8 00001c 01 MS 0 0 1
[10] .ARM.attributes ARM_ATTRIBUTES 00000000 4a0fd4 00002d 00 0 0 1
[11] .debug_line PROGBITS 00000000 4a1001 00281b 00 0 0 1
[12] .debug_info PROGBITS 00000000 4a381c 0066cb 00 0 0 1
[13] .debug_abbrev PROGBITS 00000000 4a9ee7 0013ea 00 0 0 1
[14] .debug_aranges PROGBITS 00000000 4ab2d8 0001a8 00 0 0 8
[15] .debug_str PROGBITS 00000000 4ab480 0019b4 01 MS 0 0 1
[16] .debug_ranges PROGBITS 00000000 4ace38 000640 00 0 0 8
[17] .debug_frame PROGBITS 00000000 4ad478 001010 00 0 0 4
[18] .debug_loc PROGBITS 00000000 4ae488 003643 00 0 0 1
[19] .symtab SYMTAB 00000000 4b1acc 0015b0 10 20 225 4
[20] .strtab STRTAB 00000000 4b307c 000cc5 00 0 0 1
[21] .shstrtab STRTAB 00000000 4b3d41 0000d2 00 0 0 1
Key to Flags:
W (write), A (alloc), X (execute), M (merge), S (strings), I (info),
L (link order), O (extra OS processing required), G (group), T (TLS),
C (compressed), x (unknown), o (OS specific), E (exclude),
y (purecode), p (processor specific)
Gregory
>
>
>
>> There are 40 section headers, starting at offset 0x7cc06bc:
>>
>> Section Headers:
>> [Nr] Name Type Addr Off Size ES Flg Lk Inf Al
>> [ 0] NULL 00000000 000000 000000 00 0 0 0
>> [ 1] .head.text PROGBITS c0008000 008000 00026c 00 AX 0 0 4
>> [ 2] .text PROGBITS c0100000 010000 6bd280 00 AX 0 0 64
>> [ 3] .fixup PROGBITS c07bd280 6cd280 00001c 00 AX 0 0 4
>> [ 4] .rodata PROGBITS c0800000 6d0000 168321 00 WA 0 0 64
>> [ 5] .pci_fixup PROGBITS c0968324 838324 001e40 00 A 0 0 4
>> [ 6] __ksymtab PROGBITS c096a164 83a164 007c28 00 A 0 0 4
>> [ 7] __ksymtab_gpl PROGBITS c0971d8c 841d8c 0081c8 00 A 0 0 4
>> [ 8] __ksymtab_strings PROGBITS c0979f54 849f54 0266e6 00 A 0 0 1
>> [ 9] __param PROGBITS c09a063c 87063c 00102c 00 A 0 0 4
>> [10] __modver PROGBITS c09a1668 871668 000998 00 A 0 0 4
>> [11] __ex_table PROGBITS c09a2000 872000 000ef0 00 A 0 0 8
>> [12] .ARM.unwind_idx ARM_EXIDX c09a2ef0 872ef0 02f348 00 AL 17 0 4
>> [13] .ARM.unwind_tab PROGBITS c09d2238 8a2238 001458 00 A 0 0 4
>> [14] .notes NOTE c09d3690 8a3690 000024 00 A 0 0 4
>> [15] .vectors PROGBITS ffff0000 8b0000 000020 00 AX 0 0 4
>> [16] .stubs PROGBITS ffff1000 8b1000 0002ac 00 AX 0 0 32
>> [17] .init.text PROGBITS c0a002e0 8c02e0 04ee58 00 AX 0 0 32
>> [18] .exit.text PROGBITS c0a4f138 90f138 0018cc 00 AX 0 0 4
>> [19] .init.arch.info PROGBITS c0a50a04 910a04 000270 00 A 0 0 4
>> [20] .init.tagtable PROGBITS c0a50c74 910c74 000040 00 A 0 0 4
>> [21] .init.smpalt PROGBITS c0a50cb4 910cb4 00d070 00 A 0 0 4
>> [22] .init.pv_table PROGBITS c0a5dd24 91dd24 0001ec 00 A 0 0 1
>> [23] .init.data PROGBITS c0a5e000 91e000 011e7c 00 WA 0 0 4096
>> [24] .data..percpu PROGBITS c0a70000 930000 008f0c 00 WA 0 0 64
>> [25] .data PROGBITS c0b00000 940000 07f5e8 00 WA 0 0 64
>> [26] .bss NOBITS c0b7f600 9bf5e8 02be6c 00 WA 0 0 64
>> [27] .comment PROGBITS 00000000 9bf5e8 00001c 01 MS 0 0 1
>> [28] .ARM.attributes ARM_ATTRIBUTES 00000000 9bf604 000031 00 0 0 1
>> [29] .debug_line PROGBITS 00000000 9bf635 706427 00 0 0 1
>> [30] .debug_info PROGBITS 00000000 10c5a5c 5c11e67 00 0 0 1
>> [31] .debug_abbrev PROGBITS 00000000 6cd78c3 2efd55 00 0 0 1
>> [32] .debug_aranges PROGBITS 00000000 6fc7618 011340 00 0 0 8
>> [33] .debug_str PROGBITS 00000000 6fd8958 24bc04 01 MS 0 0 1
>> [34] .debug_ranges PROGBITS 00000000 7224560 1f2bd0 00 0 0 8
>> [35] .debug_frame PROGBITS 00000000 7417130 14fa24 00 0 0 4
>> [36] .debug_loc PROGBITS 00000000 7566b54 4562b5 00 0 0 1
>> [37] .symtab SYMTAB 00000000 79bce0c 1b8f60 10 38 95872 4
>> [38] .strtab STRTAB 00000000 7b75d6c 14a7a2 00 0 0 1
>> [39] .shstrtab STRTAB 00000000 7cc050e 0001ab 00 0 0 1
>> Key to Flags:
>> W (write), A (alloc), X (execute), M (merge), S (strings), I (info),
>> L (link order), O (extra OS processing required), G (group), T (TLS),
>> C (compressed), x (unknown), o (OS specific), E (exclude),
>> y (purecode), p (processor specific)
>>
>>
>> arm-linux-gnueabihf-readelf -S ../build/vmlinux
>> There are 40 section headers, starting at offset 0x7cc853c:
>>
>> Section Headers:
>> [Nr] Name Type Addr Off Size ES Flg Lk Inf Al
>> [ 0] NULL 00000000 000000 000000 00 0 0 0
>> [ 1] .head.text PROGBITS c0008000 008000 00026c 00 AX 0 0 4
>> [ 2] .text PROGBITS c0100000 010000 6bd860 00 AX 0 0 64
>> [ 3] .fixup PROGBITS c07bd860 6cd860 00001c 00 AX 0 0 4
>> [ 4] .rodata PROGBITS c0800000 6d0000 168361 00 WA 0 0 64
>> [ 5] .pci_fixup PROGBITS c0968364 838364 001e40 00 A 0 0 4
>> [ 6] __ksymtab PROGBITS c096a1a4 83a1a4 007c28 00 A 0 0 4
>> [ 7] __ksymtab_gpl PROGBITS c0971dcc 841dcc 0081c8 00 A 0 0 4
>> [ 8] __ksymtab_strings PROGBITS c0979f94 849f94 0266e6 00 A 0 0 1
>> [ 9] __param PROGBITS c09a067c 87067c 00102c 00 A 0 0 4
>> [10] __modver PROGBITS c09a16a8 8716a8 000958 00 A 0 0 4
>> [11] __ex_table PROGBITS c09a2000 872000 000ef0 00 A 0 0 8
>> [12] .ARM.unwind_idx ARM_EXIDX c09a2ef0 872ef0 02f368 00 AL 17 0 4
>> [13] .ARM.unwind_tab PROGBITS c09d2258 8a2258 001458 00 A 0 0 4
>> [14] .notes NOTE c09d36b0 8a36b0 000024 00 A 0 0 4
>> [15] .vectors PROGBITS ffff0000 8b0000 000020 00 AX 0 0 4
>> [16] .stubs PROGBITS ffff1000 8b1000 0002ac 00 AX 0 0 32
>> [17] .init.text PROGBITS c0a002e0 8c02e0 04ee58 00 AX 0 0 32
>> [18] .exit.text PROGBITS c0a4f138 90f138 0018cc 00 AX 0 0 4
>> [19] .init.arch.info PROGBITS c0a50a04 910a04 000270 00 A 0 0 4
>> [20] .init.tagtable PROGBITS c0a50c74 910c74 000040 00 A 0 0 4
>> [21] .init.smpalt PROGBITS c0a50cb4 910cb4 00d070 00 A 0 0 4
>> [22] .init.pv_table PROGBITS c0a5dd24 91dd24 0001ec 00 A 0 0 1
>> [23] .init.data PROGBITS c0a5e000 91e000 011e7c 00 WA 0 0 4096
>> [24] .data..percpu PROGBITS c0a70000 930000 008f0c 00 WA 0 0 64
>> [25] .data PROGBITS c0b00000 940000 07f5e8 00 WA 0 0 64
>> [26] .bss NOBITS c0b7f600 9bf5e8 02be6c 00 WA 0 0 64
>> [27] .comment PROGBITS 00000000 9bf5e8 00001c 01 MS 0 0 1
>> [28] .ARM.attributes ARM_ATTRIBUTES 00000000 9bf604 000031 00 0 0 1
>> [29] .debug_line PROGBITS 00000000 9bf635 70533b 00 0 0 1
>> [30] .debug_info PROGBITS 00000000 10c4970 5c18a6b 00 0 0 1
>> [31] .debug_abbrev PROGBITS 00000000 6cdd3db 2eff72 00 0 0 1
>> [32] .debug_aranges PROGBITS 00000000 6fcd350 011340 00 0 0 8
>> [33] .debug_str PROGBITS 00000000 6fde690 24bc92 01 MS 0 0 1
>> [34] .debug_ranges PROGBITS 00000000 722a328 1f41c8 00 0 0 8
>> [35] .debug_frame PROGBITS 00000000 741e4f0 14fa78 00 0 0 4
>> [36] .debug_loc PROGBITS 00000000 756df68 456ca3 00 0 0 1
>> [37] .symtab SYMTAB 00000000 79c4c0c 1b8f90 10 38 95875 4
>> [38] .strtab STRTAB 00000000 7b7db9c 14a7f5 00 0 0 1
>> [39] .shstrtab STRTAB 00000000 7cc8391 0001ab 00 0 0 1
>> Key to Flags:
>> W (write), A (alloc), X (execute), M (merge), S (strings), I (info),
>> L (link order), O (extra OS processing required), G (group), T (TLS),
>> C (compressed), x (unknown), o (OS specific), E (exclude),
>> y (purecode), p (processor specific)
>>
>> Gregory
>>
>> --
>> Gregory Clement, Free Electrons
>> Kernel, drivers, real-time and embedded Linux
>> development, consulting, training and support.
>> http://free-electrons.com
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
--
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
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