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Re: [PATCH 09/10] hurd: Also make it possible to call strlen very early


From: Samuel Thibault
Subject: Re: [PATCH 09/10] hurd: Also make it possible to call strlen very early
Date: Wed, 17 May 2023 23:04:00 +0200
User-agent: NeoMutt/20170609 (1.8.3)

Applied, thanks!

Sergey Bugaev, le mer. 17 mai 2023 22:14:35 +0300, a ecrit:
> strlen, which is another ifunc-selected function, is invoked during
> early static executable startup if the argv arrives from the exec
> server. Make it not crash.
> 
> Checked on x86_64-gnu: statically linked executables launched after the
> exec server is up now start up successfully.
> 
> Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
> ---
>  sysdeps/mach/hurd/x86_64/static-start.S | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/sysdeps/mach/hurd/x86_64/static-start.S 
> b/sysdeps/mach/hurd/x86_64/static-start.S
> index cc8e2410..0fed375c 100644
> --- a/sysdeps/mach/hurd/x86_64/static-start.S
> +++ b/sysdeps/mach/hurd/x86_64/static-start.S
> @@ -22,6 +22,9 @@ _start:
>  
>       leaq __memcpy_sse2_unaligned(%rip), %rax
>       movq %rax, memcpy@GOTPCREL(%rip)
> +     leaq __strlen_sse2(%rip), %rax
> +     movq %rax, strlen@GOTPCREL(%rip)
> +
>       call _hurd_stack_setup
>       xorq %rdx, %rdx
>       jmp _start1
> -- 
> 2.40.1
> 
> 

-- 
Samuel
---
Pour une évaluation indépendante, transparente et rigoureuse !
Je soutiens la Commission d'Évaluation de l'Inria.



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