linux-kernel - Re: [PATCH 2/2] powerpc/vdso32: link vdso64 with linker

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Date:   Wed, 2 Sep 2020 09:14:31 -0500
From:   Segher Boessenkool <segher@...nel.crashing.org>
To:     Christophe Leroy <christophe.leroy@...roup.eu>
Cc:     Nick Desaulniers <ndesaulniers@...gle.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin <npiggin@...il.com>,
        Christophe Leroy <christophe.leroy@....fr>,
        Joe Lawrence <joe.lawrence@...hat.com>,
        Kees Cook <keescook@...omium.org>,
        Fangrui Song <maskray@...gle.com>,
        linux-kernel@...r.kernel.org, clang-built-linux@...glegroups.com,
        Paul Mackerras <paulus@...ba.org>,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH 2/2] powerpc/vdso32: link vdso64 with linker

Hi!

On Wed, Sep 02, 2020 at 06:46:45AM +0000, Christophe Leroy wrote:
> ld crashes:
> 
>   LD      arch/powerpc/kernel/vdso32/vdso32.so.dbg
> /bin/sh: line 1: 23780 Segmentation fault      (core dumped) 
> ppc-linux-ld -EB -m elf32ppc -shared -soname linux-vdso32.so.1 
> --eh-frame-hdr --orphan-handling=warn -T 
> arch/powerpc/kernel/vdso32/vdso32.lds 
> arch/powerpc/kernel/vdso32/sigtramp.o 
> arch/powerpc/kernel/vdso32/gettimeofday.o 
> arch/powerpc/kernel/vdso32/datapage.o 
> arch/powerpc/kernel/vdso32/cacheflush.o 
> arch/powerpc/kernel/vdso32/note.o arch/powerpc/kernel/vdso32/getcpu.o -o 
> arch/powerpc/kernel/vdso32/vdso32.so.dbg
> make[4]: *** [arch/powerpc/kernel/vdso32/vdso32.so.dbg] Error 139
> 
> 
> [root@...alhost linux-powerpc]# ppc-linux-ld --version
> GNU ld (GNU Binutils) 2.26.20160125

[ Don't build as root :-P ]

Try with a newer ld?  If it still happens with current versions, please
open a bug report?  https://sourceware.org/bugzilla


Segher