From: Heiko Carstens <heiko.carstens@de.ibm.com>
To: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, x86@kernel.org,
keescook@chromium.org, akpm@linux-foundation.org,
mingo@kernel.org, hpa@zytor.com, benh@kernel.crashing.org,
mpe@ellerman.id.au, mmarek@suse.cz, rusty@rustcorp.com.au
Subject: Re: [PATCH 3/4] s390: enable text relative kallsyms for 64-bit targets
Date: Wed, 20 Jan 2016 10:43:26 +0100 [thread overview]
Message-ID: <20160120094326.GD3395@osiris> (raw)
In-Reply-To: <1453280738-18721-4-git-send-email-ard.biesheuvel@linaro.org>
On Wed, Jan 20, 2016 at 10:05:37AM +0100, Ard Biesheuvel wrote:
> This enables the newly introduced text-relative kallsyms support when
> building 64-bit targets. This cuts the size of the kallsyms address
> table in half, reducing the memory footprint of the kernel .rodata
> section by about 250 KB for a defconfig build.
>
> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
> ---
>
> diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
> index dbeeb3a049f2..588160fd1db0 100644
> --- a/arch/s390/Kconfig
> +++ b/arch/s390/Kconfig
> @@ -149,6 +149,7 @@ config S390
> select HAVE_REGS_AND_STACK_ACCESS_API
> select HAVE_SYSCALL_TRACEPOINTS
> select HAVE_VIRT_CPU_ACCOUNTING
> + select KALLSYMS_TEXT_RELATIVE if 64BIT
Please remove the "if 64BIT" since s390 is always 64BIT in the meantime.
Tested on s390 and everything seems still to work ;)
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
next prev parent reply other threads:[~2016-01-20 9:43 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-20 9:05 [PATCH 0/4] support for text-relative kallsyms table Ard Biesheuvel
2016-01-20 9:05 ` [PATCH 1/4] kallsyms: add support for relative offsets in kallsyms address table Ard Biesheuvel
2016-01-20 19:13 ` Kees Cook
2016-01-20 9:05 ` [PATCH 2/4] powerpc: enable text relative kallsyms for ppc64 Ard Biesheuvel
2016-01-21 4:01 ` Michael Ellerman
2016-01-20 9:05 ` [PATCH 3/4] s390: enable text relative kallsyms for 64-bit targets Ard Biesheuvel
2016-01-20 9:43 ` Heiko Carstens [this message]
2016-01-20 10:04 ` Ard Biesheuvel
2016-01-20 10:17 ` Heiko Carstens
2016-01-20 10:18 ` Ard Biesheuvel
2016-01-20 9:05 ` [PATCH 4/4] x86_64: " Ard Biesheuvel
2016-01-20 19:12 ` Kees Cook
2016-01-20 10:33 ` [PATCH 0/4] support for text-relative kallsyms table Ingo Molnar
2016-01-20 11:50 ` Arnd Bergmann
2016-01-21 5:10 ` Rusty Russell
2016-01-21 6:45 ` Ard Biesheuvel
2016-01-21 8:32 ` Ard Biesheuvel
2016-01-27 3:46 ` Rusty Russell
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