linux-kernel - Re: [PATCH] Revert "kbuild: Check if linker supports the -X option"

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: <YzXhVSkCVKZzpf9H@dev-arch.thelio-3990X>
Date:   Thu, 29 Sep 2022 11:17:57 -0700
From:   Nathan Chancellor <nathan@...nel.org>
To:     Masahiro Yamada <masahiroy@...nel.org>
Cc:     linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
        Michal Marek <michal.lkml@...kovi.net>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Tom Rix <trix@...hat.com>, llvm@...ts.linux.dev
Subject: Re: [PATCH] Revert "kbuild: Check if linker supports the -X option"

On Fri, Sep 30, 2022 at 03:12:23AM +0900, Masahiro Yamada wrote:
> This reverts commit d79a27195a33f4b5e591de5536799ad874ea6cf5.
> 
> According to the commit description, this ld-option test was added for
> the gold linker at that time.
> 
> Commit 75959d44f9dc ("kbuild: Fail if gold linker is detected") gave
> up the gold linker support after all.
> 
> I tested the BFD linker from binutils 2.23 and LLD from LLVM 11.0.0.
> Both of them support the -X option.
> 
> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>

Reviewed-by: Nathan Chancellor <nathan@...nel.org>

> ---
> 
>  Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/Makefile b/Makefile
> index 49dcae886c48..d7c85ec79000 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -1037,7 +1037,7 @@ KBUILD_LDFLAGS	+= $(call ld-option,--no-warn-rwx-segments)
>  endif
>  
>  ifeq ($(CONFIG_STRIP_ASM_SYMS),y)
> -LDFLAGS_vmlinux	+= $(call ld-option, -X,)
> +LDFLAGS_vmlinux	+= -X
>  endif
>  
>  ifeq ($(CONFIG_RELR),y)
> -- 
> 2.34.1
>