linux-kernel - [RFC v5 55/57] arm64: Mark sigreturn32.o as containing non standard code

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-Id: <20200109160300.26150-56-jthierry@redhat.com>
Date:   Thu,  9 Jan 2020 16:02:58 +0000
From:   Julien Thierry <jthierry@...hat.com>
To:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     jpoimboe@...hat.com, peterz@...radead.org, raphael.gault@....com,
        catalin.marinas@....com, will@...nel.org,
        Julien Thierry <jthierry@...hat.com>
Subject: [RFC v5 55/57] arm64: Mark sigreturn32.o as containing non standard code

sigreturn32.o contains aarch32 getting copied to the VDSO for
compat user tasks.

This code shouldn't get validated by arm64 objtool.

Signed-off-by: Julien Thierry <jthierry@...hat.com>
---
 arch/arm64/kernel/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index f5994679db5f..b978026ea368 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -31,6 +31,7 @@ obj-$(CONFIG_COMPAT)			+= sys32.o signal32.o			\
 					   sys_compat.o
 ifneq ($(CONFIG_COMPAT_VDSO), y)
 obj-$(CONFIG_COMPAT)			+= sigreturn32.o
+OBJECT_FILES_NON_STANDARD_sigreturn32.o := y
 endif
 obj-$(CONFIG_KUSER_HELPERS)		+= kuser32.o
 
-- 
2.21.0