linux-kernel - [tip: objtool/core] objtool: Fix 32bit cross builds

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>] [day] [month] [year] [list]

Date:   Thu, 23 Apr 2020 07:49:48 -0000
From:   "tip-bot2 for Peter Zijlstra" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     youling257@...il.com,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>, x86 <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [tip: objtool/core] objtool: Fix 32bit cross builds

The following commit has been merged into the objtool/core branch of tip:

Commit-ID:     963d5669171adcd59b45cad58fab81bbd599c3c8
Gitweb:        https://git.kernel.org/tip/963d5669171adcd59b45cad58fab81bbd599c3c8
Author:        Peter Zijlstra <peterz@...radead.org>
AuthorDate:    Mon, 20 Apr 2020 10:33:32 +02:00
Committer:     Ingo Molnar <mingo@...nel.org>
CommitterDate: Wed, 22 Apr 2020 10:53:49 +02:00

objtool: Fix 32bit cross builds

Apparently there's people doing 64bit builds on 32bit machines.

Fixes: 74b873e49d92 ("objtool: Optimize find_rela_by_dest_range()")
Reported-by: youling257@...il.com
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 tools/objtool/elf.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/objtool/elf.h b/tools/objtool/elf.h
index ebbb10c..0b79c23 100644
--- a/tools/objtool/elf.h
+++ b/tools/objtool/elf.h
@@ -99,7 +99,7 @@ static inline u32 sec_offset_hash(struct section *sec, unsigned long offset)
 	offset &= OFFSET_STRIDE_MASK;
 
 	ol = offset;
-	oh = offset >> 32;
+	oh = (offset >> 16) >> 16;
 
 	__jhash_mix(ol, oh, idx);