linux-kernel - Re: [tip: x86/fred] x86/fred: FRED entry/exit and dispatch 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]

Date: Fri, 26 Jan 2024 11:00:50 +0100
From: Borislav Petkov <bp@...en8.de>
To: "H. Peter Anvin (Intel)" <hpa@...or.com>
Cc: linux-kernel@...r.kernel.org, linux-tip-commits@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Megha Dey <megha.dey@...el.com>, Xin Li <xin3.li@...el.com>,
	Shan Kang <shan.kang@...el.com>, x86@...nel.org
Subject: Re: [tip: x86/fred] x86/fred: FRED entry/exit and dispatch code

On Thu, Jan 25, 2024 at 06:21:21PM -0000, tip-bot2 for H. Peter Anvin (Intel) wrote:
> +SYM_CODE_START_NOALIGN(asm_fred_entrypoint_user)
> +	FRED_ENTER
> +	call	fred_entry_from_user
> +	FRED_EXIT
> +	ERETU
> +SYM_CODE_END(asm_fred_entrypoint_user)
> +
> +.fill asm_fred_entrypoint_kernel - ., 1, 0xcc

me compiler no likey:

/tmp/entry_64_fred-de6f10.s:896:7: error: expected assembly-time absolute expression
fill asm_fred_entrypoint_kernel - ., 1, 0xcc
      ^
make[4]: *** [scripts/Makefile.build:361: arch/x86/entry/entry_64_fred.o] Error 1
make[4]: *** Waiting for unfinished jobs....
make[3]: *** [scripts/Makefile.build:481: arch/x86/entry] Error 2
make[3]: *** Waiting for unfinished jobs....

config is x86_64 allmodconfig, compiler is

$ clang --version
Ubuntu clang version 14.0.0-1ubuntu1.1

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette