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Mon, 13 Oct 2025 04:01:53 +0000 Received: from smtpav07.fra02v.mail.ibm.com (smtpav07.fra02v.mail.ibm.com [10.20.54.106]) by smtprelay03.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 59D41pFw31129940 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 13 Oct 2025 04:01:51 GMT Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6D5E620125; Mon, 13 Oct 2025 04:01:51 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 3412D200D8; Mon, 13 Oct 2025 04:01:50 +0000 (GMT) Received: from vishalc-ibm.ibm.com (unknown [9.39.21.93]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 13 Oct 2025 04:01:49 +0000 (GMT) From: Vishal Chourasia To: christophe.leroy@csgroup.eu, maddy@linux.ibm.com, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] arch/powerpc: Remove .interp section in vmlinux Date: Mon, 13 Oct 2025 09:31:48 +0530 Message-ID: <20251013040148.560439-1-vishalc@linux.ibm.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: References: X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: pETyR0XVF2t6SoMCl3aVmamFlGqcLSiV X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMDExMDAxMSBTYWx0ZWRfXwEUQ+m/Qex+7 U/B51HwVWIWr+NMN8uCrZLMNexcZSP9vKVcnLOlkqwyhKVDJOH9w+AwUTC1sPNl/B8m0AaSFobQ ozgEYP0ydcoTk6U4ppdTOoY47ugEs/xEbwAlvuWe1odd82JTYm7aODD+/i95nVTtQU/a5ZZ1jBT t5+xi/MNuvVz8BHGcufgrGe8snXAIjOIrIZtuQDx0hF8PD5HQwexC2o3N6CI1ztum5YG8iE2UGi w2odTBcHkIp1cA8ERA6DHQsmaVidbdAd9vvO1frgIw1qVSZFhLQgT/a5YadZhmYtPvFqSXyQoUY A4hSSkBD2mTF6GthQaYTiTVxRbrQXHX4CJgilQNoRaupuhcQ7zeJELpDtnGoREl2WyMZUaJ7nux De/ht6/kT9SpbAixfQ8+CLcwzUE/GA== X-Proofpoint-GUID: pETyR0XVF2t6SoMCl3aVmamFlGqcLSiV X-Authority-Analysis: v=2.4 cv=QZ5rf8bv c=1 sm=1 tr=0 ts=68ec79b2 cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=x6icFKpwvdMA:10 a=CCpqsmhAAAAA:8 a=sAOM7heRkMNWthvXo-4A:9 a=ul9cdbp4aOFLsgKbc677:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1117,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-10-13_02,2025-10-06_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 priorityscore=1501 phishscore=0 bulkscore=0 suspectscore=0 spamscore=0 malwarescore=0 impostorscore=0 clxscore=1015 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2510020000 definitions=main-2510110011 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. 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 - Building for ppc64le target using GCC on ppc64le host For details refer [1] [1] https://sourceware.org/bugzilla/show_bug.cgi?id=33481 vishalc