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Thu, 15 May 2025 15:58:16 +0000 (GMT) From: Ilya Leoshkevich To: Jan Kiszka , Kieran Bingham , Andrew Morton Cc: linux-kernel@vger.kernel.org, Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Ilya Leoshkevich Subject: [PATCH 0/3] scripts/gdb/symbols: determine KASLR offset on s390 during early boot Date: Thu, 15 May 2025 17:52:10 +0200 Message-ID: <20250515155811.114392-1-iii@linux.ibm.com> X-Mailer: git-send-email 2.49.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=IqAecK/g c=1 sm=1 tr=0 ts=68260f1e cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=dt9VzEwgFbYA:10 a=CljUL56kBcwxVqJzvYQA:9 X-Proofpoint-ORIG-GUID: ZXYUdZx0lIv4Ll6WpMYUtlOdftN_QIeu X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNTE1MDE1NSBTYWx0ZWRfXzllPhZ4/k9H1 Esv/gf/cLon6z444rj3x/VFhhAas3ioPphtDeGd6+QcQ2/Tb2ccLS16dSahZt/ehor33K4GD8U1 7WNUGzfmd41wBSlFvDkWwXI0GU19WZvd3R7HkLcb51i+MD70m0d4Ip28L+t01AwVW3ymIv2pYpi BCeYGiVUN1DuIfysktY5gmaiC2MDHTw2cSAb+TwMcoDECLcxb6r/FldP6OyTyd3frG9UhziwKPZ cQ7geg/GUDmBc7ZDfbjFIepIbOIEwavsGMb+ew0VJdWk7aRzbeUm+OXVMBahoATM3YgIRjaqZzm ps78y6Dhv9UTc/QqJeNSp8nO5BB8E4Al09HcWu0XauUnEFoM/oNWAQQWG5wsjiAqif1bRbxplHg QnOl3jyjOejdJsnmQWpauV4OCQdFpfmisTrGcwUIRxH8FhHIJsDGqhZZcdRaL7gzA7tnIGTE X-Proofpoint-GUID: ZXYUdZx0lIv4Ll6WpMYUtlOdftN_QIeu X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.0.736,FMLib:17.12.80.40 definitions=2025-05-15_06,2025-05-15_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 malwarescore=0 adultscore=0 lowpriorityscore=0 phishscore=0 impostorscore=0 priorityscore=1501 clxscore=1011 spamscore=0 mlxlogscore=764 bulkscore=0 suspectscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2505070000 definitions=main-2505150155 Hi, I noticed that debugging s390 early boot using the support I introduced in commit 28939c3e9925 ("scripts/gdb/symbols: determine KASLR offset on s390") does not work. The reason is that decompressor does not provide the vmcoreinfo note, so KASLR offset needs to be extracted in a different way, which this series implements. Patches 1-2 are trivial refactorings, and patch 3 is the implementation. Best regards, Ilya Ilya Leoshkevich (3): scripts/gdb/symbols: factor out get_vmlinux() scripts/gdb/symbols: factor out pagination_off() scripts/gdb/symbols: determine KASLR offset on s390 during early boot scripts/gdb/linux/symbols.py | 38 +++++++++++++++++++----------------- scripts/gdb/linux/utils.py | 20 +++++++++++++++++++ 2 files changed, 40 insertions(+), 18 deletions(-) -- 2.49.0