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Message-ID: <877evc1v1m.fsf@free-electrons.com>
Date: Mon, 30 Oct 2017 17:04:37 +0100
From: Gregory CLEMENT <gregory.clement@...e-electrons.com>
To: Russell King - ARM Linux <linux@...linux.org.uk>
Cc: Arnd Bergmann <arnd@...db.de>,
Aaro Koskinen <aaro.koskinen@....fi>,
Robert Jarzmik <robert.jarzmik@...e.fr>,
Ard Biesheuvel <ard.biesheuvel@...aro.org>,
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 Russell,
On lun., oct. 30 2017, Russell King - ARM Linux <linux@...linux.org.uk> wrote:
> 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.
Here it is:
arm-linux-gnueabi-objdump -h ../build/arch/arm/boot/compressed/vmlinux
../build/arch/arm/boot/compressed/vmlinux: file format elf32-littlearm
Sections:
Idx Name Size VMA LMA File off Algn
0 .text 00005ef8 00000000 00000000 00010000 2**5
CONTENTS, ALLOC, LOAD, READONLY, CODE
1 .rodata 00000d4c 00005ef8 00005ef8 00015ef8 2**2
CONTENTS, ALLOC, LOAD, READONLY, DATA
2 .piggydata 0048a552 00006c44 00006c44 00016c44 2**0
CONTENTS, ALLOC, LOAD, READONLY, DATA
3 .got.plt 0000000c 00491198 00491198 004a1198 2**2
CONTENTS, ALLOC, LOAD, DATA
4 .got 00000028 004911a4 004911a4 004a11a4 2**2
CONTENTS, ALLOC, LOAD, DATA
5 .pad 00000004 004911cc 004911cc 004a11cc 2**0
CONTENTS, ALLOC, LOAD, DATA
6 .bss 0000001c 004911d0 004911d0 004a11d0 2**2
ALLOC
7 .stack 00001000 004911f0 004911f0 004a11d0 2**0
ALLOC
8 .comment 0000001c 00000000 00000000 004a11d0 2**0
CONTENTS, READONLY
9 .ARM.attributes 0000002d 00000000 00000000 004a11ec 2**0
CONTENTS, READONLY
10 .debug_line 0000281b 00000000 00000000 004a1219 2**0
CONTENTS, READONLY, DEBUGGING
11 .debug_info 000066cb 00000000 00000000 004a3a34 2**0
CONTENTS, READONLY, DEBUGGING
12 .debug_abbrev 000013ea 00000000 00000000 004aa0ff 2**0
CONTENTS, READONLY, DEBUGGING
13 .debug_aranges 000001a8 00000000 00000000 004ab4f0 2**3
CONTENTS, READONLY, DEBUGGING
14 .debug_str 000019b4 00000000 00000000 004ab698 2**0
CONTENTS, READONLY, DEBUGGING
15 .debug_ranges 00000640 00000000 00000000 004ad050 2**3
CONTENTS, READONLY, DEBUGGING
16 .debug_frame 00001010 00000000 00000000 004ad690 2**2
CONTENTS, READONLY, DEBUGGING
17 .debug_loc 00003643 00000000 00000000 004ae6a0 2**0
CONTENTS, READONLY, DEBUGGING
Gregory
--
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
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