linux-kernel - Re: [PATCH v5 2/6] scripts/sorttable: Have mcount rela sort use direct values

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <91523154-072b-437b-bbdc-0b70e9783fd0@app.fastmail.com>
Date: Tue, 25 Feb 2025 09:45:52 +0100
From: "Arnd Bergmann" <arnd@...db.de>
To: "Steven Rostedt" <rostedt@...dmis.org>
Cc: linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
 linux-kbuild@...r.kernel.org, bpf <bpf@...r.kernel.org>,
 linux-arm-kernel@...ts.infradead.org, linux-s390@...r.kernel.org,
 "Masami Hiramatsu" <mhiramat@...nel.org>,
 "Mark Rutland" <mark.rutland@....com>,
 "Mathieu Desnoyers" <mathieu.desnoyers@...icios.com>,
 "Andrew Morton" <akpm@...ux-foundation.org>,
 "Peter Zijlstra" <peterz@...radead.org>,
 "Linus Torvalds" <torvalds@...ux-foundation.org>,
 "Masahiro Yamada" <masahiroy@...nel.org>,
 "Nathan Chancellor" <nathan@...nel.org>,
 "Nicolas Schier" <nicolas@...sle.eu>,
 "Zheng Yejian" <zhengyejian1@...wei.com>,
 "Martin Kelly" <martin.kelly@...wdstrike.com>,
 "Christophe Leroy" <christophe.leroy@...roup.eu>,
 "Josh Poimboeuf" <jpoimboe@...hat.com>, "Heiko Carstens" <hca@...ux.ibm.com>,
 "Catalin Marinas" <catalin.marinas@....com>, "Will Deacon" <will@...nel.org>,
 "Vasily Gorbik" <gor@...ux.ibm.com>,
 "Alexander Gordeev" <agordeev@...ux.ibm.com>
Subject: Re: [PATCH v5 2/6] scripts/sorttable: Have mcount rela sort use direct values

On Tue, Feb 25, 2025, at 03:11, Steven Rostedt wrote:
> On Mon, 24 Feb 2025 17:21:47 -0500
>> 
>
> Nevermind, Masami told me all I need to do is add LLVM=1 and clang can
> handle the cross compiling.
>
> I looked, and sure enough clang on arm64 does it the same way x86 does. So
> using the rela items to sort is a gcc thing :-p
>
> Can you try this patch?

It fixes the build issue for me. I tried booting as well, but ran
into a BUG() when I enable ftrace. I assume this is an unrelated
issue, but you can find the output for reference in case this is
relevant.

     Arnd

----
[    0.000000] ftrace section at ffffc44698ef67c8 sorted properly
[    0.000000] Unable to handle kernel paging request at virtual address 0000444617800008
[    0.000000] Mem abort info:
[    0.000000]   ESR = 0x0000000096000004
[    0.000000]   EC = 0x25: DABT (current EL), IL = 32 bits
[    0.000000]   SET = 0, FnV = 0
[    0.000000]   EA = 0, S1PTW = 0
[    0.000000]   FSC = 0x04: level 0 translation fault
[    0.000000] Data abort info:
[    0.000000]   ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000
[    0.000000]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0
[    0.000000]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[    0.000000] [0000444617800008] user address but active_mm is swapper
[    0.000000] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP
[    0.000000] Modules linked in:
[    0.000000] CPU: 0 UID: 0 PID: 0 Comm: swapper Not tainted 6.14.0-rc4-next-20250225-00565-g6c6895f38d76 #15305
[    0.000000] Hardware name: linux,dummy-virt (DT)
[    0.000000] pstate: 400000c5 (nZcv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    0.000000] pc : ftrace_call_adjust+0x44/0xd0
[    0.000000] lr : ftrace_process_locs+0x220/0x5e0
[    0.000000] sp : ffffc44698fb3da0
[    0.000000] x29: ffffc44698fb3da0 x28: ffffc4469929f000 x27: ffffc4469929f000
[    0.000000] x26: 0000444617800000 x25: ffffc44698ef67d0 x24: ffff57b2c2008000
[    0.000000] x23: ffffc44698f59de0 x22: ffff57b2c2008000 x21: 0000000000000000
[    0.000000] x20: 0000000000001000 x19: 0000444617800000 x18: 0000000000000068
[    0.000000] x17: 0000000000000001 x16: 00000000ffffffff x15: ffffc44698fc5f80
[    0.000000] x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000
[    0.000000] x11: 0000000000000000 x10: 0000000000000000 x9 : 00007fff80000000
[    0.000000] x8 : 000000000000201f x7 : 0000000000000000 x6 : 302e30202020205b
[    0.000000] x5 : 0000000000000001 x4 : 0000000000000000 x3 : 0000000000000001
[    0.000000] x2 : 0000000000000004 x1 : 0000000000000040 x0 : 0000444617800000
[    0.000000] Call trace:
[    0.000000]  ftrace_call_adjust+0x44/0xd0 (P)
[    0.000000]  ftrace_process_locs+0x220/0x5e0
[    0.000000]  ftrace_init+0x98/0xe8
[    0.000000]  start_kernel+0x16c/0x3d0
[    0.000000]  __primary_switched+0x88/0x98
[    0.000000] Code: aa1f03e0 14000014 aa0003f3 528403e8 (b8408e74) 
[    0.000000] ---[ end trace 0000000000000000 ]---
[    0.000000] Kernel panic - not syncing: Attempted to kill the idle task!
[    0.000000] ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]---