From: Jens Remus <jremus@linux.ibm.com>
To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
bpf@vger.kernel.org, x86@kernel.org, linux-mm@kvack.org,
Steven Rostedt <rostedt@kernel.org>
Cc: Jens Remus <jremus@linux.ibm.com>,
Josh Poimboeuf <jpoimboe@kernel.org>,
Masami Hiramatsu <mhiramat@kernel.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>, Jiri Olsa <jolsa@kernel.org>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Andrii Nakryiko <andrii@kernel.org>,
Indu Bhagat <indu.bhagat@oracle.com>,
"Jose E. Marchesi" <jemarch@gnu.org>,
Beau Belgrave <beaub@linux.microsoft.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Florian Weimer <fweimer@redhat.com>, Kees Cook <kees@kernel.org>,
"Carlos O'Donell" <codonell@redhat.com>,
Sam James <sam@gentoo.org>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
David Hildenbrand <david@redhat.com>,
"H. Peter Anvin" <hpa@zytor.com>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
Michal Hocko <mhocko@suse.com>, Mike Rapoport <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
Vlastimil Babka <vbabka@suse.cz>,
Heiko Carstens <hca@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>
Subject: [PATCH v11 02/15] fixup! unwind_user/x86: Enable frame pointer unwinding on x86
Date: Wed, 22 Oct 2025 16:43:13 +0200 [thread overview]
Message-ID: <20251022144326.4082059-3-jremus@linux.ibm.com> (raw)
In-Reply-To: <20251022144326.4082059-1-jremus@linux.ibm.com>
Signed-off-by: Jens Remus <jremus@linux.ibm.com>
---
Notes (jremus):
This fixup adjusts patch "[PATCH 12/12] unwind_user/x86: Enable frame
pointer unwinding on x86" [1] to my preceding fixup, which limits the
down-/upscaling by word size to unwind user (compat) fp.
[1]: https://lore.kernel.org/lkml/20250924080119.613695709@infradead.org/
arch/x86/include/asm/unwind_user.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/x86/include/asm/unwind_user.h b/arch/x86/include/asm/unwind_user.h
index e649b8fea2aa..5e0755ea3086 100644
--- a/arch/x86/include/asm/unwind_user.h
+++ b/arch/x86/include/asm/unwind_user.h
@@ -2,10 +2,10 @@
#ifndef _ASM_X86_UNWIND_USER_H
#define _ASM_X86_UNWIND_USER_H
-#define ARCH_INIT_USER_FP_FRAME \
- .cfa_off = 2, \
- .ra_off = -1, \
- .fp_off = -2, \
+#define ARCH_INIT_USER_FP_FRAME(ws) \
+ .cfa_off = 2*(ws), \
+ .ra_off = -1*(ws), \
+ .fp_off = -2*(ws), \
.use_fp = true,
#endif /* _ASM_X86_UNWIND_USER_H */
--
2.48.1
next prev parent reply other threads:[~2025-10-22 14:44 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-22 14:43 [PATCH v11 00/15] unwind_deferred: Implement sframe handling Jens Remus
2025-10-22 14:43 ` [PATCH v11 01/15] fixup! unwind: Implement compat fp unwind Jens Remus
2025-10-22 14:43 ` Jens Remus [this message]
2025-10-22 14:43 ` [PATCH v11 03/15] unwind_user/sframe: Add support for reading .sframe headers Jens Remus
2025-11-18 17:04 ` Jens Remus
2025-11-18 19:26 ` Steven Rostedt
2025-10-22 14:43 ` [PATCH v11 04/15] unwind_user/sframe: Store sframe section data in per-mm maple tree Jens Remus
2025-10-22 14:43 ` [PATCH v11 05/15] x86/uaccess: Add unsafe_copy_from_user() implementation Jens Remus
2025-10-22 14:43 ` [PATCH v11 06/15] unwind_user/sframe: Add support for reading .sframe contents Jens Remus
2025-10-23 16:04 ` Jens Remus
2025-10-22 14:43 ` [PATCH v11 07/15] unwind_user/sframe: Detect .sframe sections in executables Jens Remus
2025-10-22 14:43 ` [PATCH v11 08/15] unwind_user/sframe: Wire up unwind_user to sframe Jens Remus
2025-10-24 13:44 ` Peter Zijlstra
2025-10-24 14:29 ` Jens Remus
2025-10-24 19:00 ` Steven Rostedt
2025-10-22 14:43 ` [PATCH v11 09/15] unwind_user: Stop when reaching an outermost frame Jens Remus
2025-10-22 14:43 ` [PATCH v11 10/15] unwind_user/sframe: Add support for outermost frame indication Jens Remus
2025-10-22 14:43 ` [PATCH v11 11/15] unwind_user/sframe/x86: Enable sframe unwinding on x86 Jens Remus
2025-10-22 14:43 ` [PATCH v11 12/15] unwind_user/sframe: Remove .sframe section on detected corruption Jens Remus
2025-10-22 14:43 ` [PATCH v11 13/15] unwind_user/sframe: Show file name in debug output Jens Remus
2025-10-22 14:43 ` [PATCH v11 14/15] unwind_user/sframe: Add .sframe validation option Jens Remus
2025-10-22 14:43 ` [PATCH v11 15/15] unwind_user/sframe: Add prctl() interface for registering .sframe sections Jens Remus
2025-10-22 20:39 ` [PATCH v11 00/15] unwind_deferred: Implement sframe handling Andrew Morton
2025-10-22 21:58 ` Steven Rostedt
2025-10-23 8:09 ` Fangrui Song
2025-10-23 14:23 ` Steven Rostedt
2025-10-23 16:05 ` [RFC PATCH 1/2] fixup! unwind_user/sframe: Add support for reading .sframe contents Jens Remus
2025-10-23 16:05 ` [RFC PATCH 2/2] fixup! unwind_user/sframe: Add .sframe validation option Jens Remus
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