linux-kernel - Re: [PATCH] arch/powerpc: Remove .interp section in vmlinux

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Message-ID: <2b4a3215-1620-40c9-a00c-ca833ebbb7b6@csgroup.eu>
Date: Mon, 13 Oct 2025 08:46:48 +0200
From: Christophe Leroy <christophe.leroy@...roup.eu>
To: Vishal Chourasia <vishalc@...ux.ibm.com>, christophe.leroy@...roup.eu,
 maddy@...ux.ibm.com, linuxppc-dev@...ts.ozlabs.org,
 linux-kernel@...r.kernel.org, clang-built-linux@...glegroups.com,
 "llvm@...ts.linux.dev" <llvm@...ts.linux.dev>,
 Nathan Chancellor <nathan@...nel.org>
Subject: Re: [PATCH] arch/powerpc: Remove .interp section in vmlinux

+CLANG ppl

Hi,

Le 13/10/2025 à 06:01, Vishal Chourasia a écrit :
> While debugging a ppc64le QEMU guest on an x86_64 host, I observed GDB crashes
> when attempting to attach to the remote target:
> 
> (gdb) target remote :1234
> 
> Investigation revealed that cross-compiling the Linux kernel for ppc64le on an
> x86_64 host using Clang produces a vmlinux binary containing an empty .interp
> section. This empty .interp section is responsible for the GDB crashes.

Which version of CLANG is it ?

> 
> This issue does not occur when:
> - Building for ppc64le target using GCC on x86_64 host
> - Building for ppc64le target using Clang on ppc64le host

Is it the same CLANG version ?

> - Building for ppc64le target using GCC on ppc64le host
> 
> For details refer [1]
> 
> [1] https://sourceware.org/bugzilla/show_bug.cgi?id=33481

Christophe