linux-kernel - Re: [PATCH v3] powerpc/boot: Set LC

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Message-ID: <20211026155940.GX614@gate.crashing.org>
Date:   Tue, 26 Oct 2021 10:59:40 -0500
From:   Segher Boessenkool <segher@...nel.crashing.org>
To:     Christophe Leroy <christophe.leroy@...roup.eu>
Cc:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] powerpc/boot: Set LC_ALL=C in wrapper script

On Tue, Oct 26, 2021 at 03:48:29PM +0200, Christophe Leroy wrote:
> While trying to build a simple Image for ACADIA platform, I got the
> following error:
> 
> 	  WRAP    arch/powerpc/boot/simpleImage.acadia
> 	INFO: Uncompressed kernel (size 0x6ae7d0) overlaps the address of the wrapper(0x400000)
> 	INFO: Fixing the link_address of wrapper to (0x700000)
> 	powerpc64-linux-gnu-ld : mode d'émulation non reconnu : -T
> 	Émulations prises en charge : elf64ppc elf32ppc elf32ppclinux elf32ppcsim elf64lppc elf32lppc elf32lppclinux elf32lppcsim
> 	make[1]: *** [arch/powerpc/boot/Makefile:424 : arch/powerpc/boot/simpleImage.acadia] Erreur 1
> 	make: *** [arch/powerpc/Makefile:285 : simpleImage.acadia] Erreur 2
> 
> Trying again with V=1 shows the following command
> 
> 	powerpc64-linux-gnu-ld -m -T arch/powerpc/boot/zImage.lds -Ttext 0x700000 --no-dynamic-linker -o arch/powerpc/boot/simpleImage.acadia -Map wrapper.map arch/powerpc/boot/fixed-head.o arch/powerpc/boot/simpleboot.o ./zImage.3278022.o arch/powerpc/boot/wrapper.a
> 
> The argument of '-m' is missing.
> 
> This is due to the wrapper script calling 'objdump -p vmlinux' and
> looking for 'file format', whereas the output of objdump is:
> 
> 	vmlinux:     format de fichier elf32-powerpc
> 
> 	En-tête de programme:
> 	    LOAD off    0x00010000 vaddr 0xc0000000 paddr 0x00000000 align 2**16
> 	         filesz 0x0069e1d4 memsz 0x006c128c flags rwx
> 	    NOTE off    0x0064591c vaddr 0xc063591c paddr 0x0063591c align 2**2
> 	         filesz 0x00000054 memsz 0x00000054 flags ---
> 
> Add LC_ALL=C at the beginning of the wrapper script in order to get the
> output expected by the script:
> 
> 	vmlinux:     file format elf32-powerpc
> 
> 	Program Header:
> 	    LOAD off    0x00010000 vaddr 0xc0000000 paddr 0x00000000 align 2**16
> 	         filesz 0x0069e1d4 memsz 0x006c128c flags rwx
> 	    NOTE off    0x0064591c vaddr 0xc063591c paddr 0x0063591c align 2**2
> 	         filesz 0x00000054 memsz 0x00000054 flags ---
> 
> Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>

Acked-by: Segher Boessenkool <segher@...nel.crashing.org>

Thanks,


Segher