From: Arnd Bergmann <arnd@arndb.de>
To: Nicolas Pitre <nico@linaro.org>
Cc: Andi Kleen <ak@linux.intel.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>
Subject: [PATCH 0/7] ARM: hacks for link-time optimization
Date: Tue, 20 Feb 2018 22:59:47 +0100 [thread overview]
Message-ID: <20180220215954.4092811-1-arnd@arndb.de> (raw)
Hi Nico, all,
I was playing with ARM link-time optimization handling earlier this
month, and eventually got it to build cleanly with randconfig kernels,
but ended up with a lot of ugly hacks to actually pull it off.
Here are the ones that I don't think we actually want to merge,
but it may be helpful to have these for reference for the next
person that tries to make it work.
Arnd
Arnd Bergmann (7):
ARM: disallow combining XIP and LTO
ARM: LTO: avoid THUMB2_KERNEL+LTO
[HACK] pass endianess flag to LTO linker
ARM: io-acorn: fix LTO linking without CONFIG_PRINTK
ARM: fix __inflate_kernel_data stack warning for LTO
ARM: mark assembler-referenced symbols as __visible
efi: disable LTO for EFI stub
arch/arm/Kconfig | 4 +++-
arch/arm/Makefile | 2 ++
arch/arm/kernel/Makefile | 3 ---
arch/arm/kernel/head-inflate-data.c | 3 ++-
arch/arm/kernel/process.c | 2 +-
arch/arm/kernel/suspend.c | 2 ++
arch/arm/kernel/unwind.c | 1 +
arch/arm/lib/io-acorn.S | 4 ++++
arch/arm/probes/kprobes/core.c | 2 +-
arch/arm/probes/kprobes/test-core.c | 11 ++++++-----
arch/arm/vdso/vgettimeofday.c | 2 ++
drivers/bus/arm-cci.c | 6 +++---
drivers/firmware/efi/libstub/Makefile | 4 +++-
drivers/soc/bcm/brcmstb/pm/pm-arm.c | 2 +-
lib/clz_ctz.c | 20 ++++++++++----------
15 files changed, 41 insertions(+), 27 deletions(-)
--
2.9.0
next reply other threads:[~2018-02-20 22:00 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-20 21:59 Arnd Bergmann [this message]
2018-02-20 21:59 ` [PATCH 1/7] ARM: disallow combining XIP and LTO Arnd Bergmann
2018-02-21 3:01 ` Nicolas Pitre
2018-02-21 11:50 ` Arnd Bergmann
2018-02-21 15:13 ` Nicolas Pitre
2018-03-12 2:40 ` Nicolas Pitre
2018-03-12 13:52 ` Arnd Bergmann
2018-03-12 16:46 ` Arnd Bergmann
2018-03-12 17:00 ` Nicolas Pitre
2018-03-12 17:05 ` Nicolas Pitre
2018-03-12 17:07 ` Arnd Bergmann
2018-02-20 21:59 ` [PATCH 2/7] ARM: LTO: avoid THUMB2_KERNEL+LTO Arnd Bergmann
2018-02-21 3:12 ` Nicolas Pitre
2018-02-21 11:48 ` Arnd Bergmann
2018-03-07 18:30 ` Matthias Kaehlcke
2018-03-07 18:52 ` Nicolas Pitre
2018-02-20 21:59 ` [PATCH 3/7] [HACK] pass endianess flag to LTO linker Arnd Bergmann
2018-02-21 3:15 ` Nicolas Pitre
2018-02-21 9:44 ` Arnd Bergmann
2018-02-21 8:37 ` Ard Biesheuvel
2018-02-21 9:48 ` Arnd Bergmann
2018-02-21 10:09 ` Ard Biesheuvel
2018-02-21 13:00 ` Arnd Bergmann
2018-02-20 21:59 ` [PATCH 4/7] ARM: io-acorn: fix LTO linking without CONFIG_PRINTK Arnd Bergmann
2018-02-20 21:59 ` [PATCH 5/7] ARM: fix __inflate_kernel_data stack warning for LTO Arnd Bergmann
2018-02-21 3:26 ` Nicolas Pitre
2018-02-20 21:59 ` [PATCH 6/7] ARM: mark assembler-referenced symbols as __visible Arnd Bergmann
2018-02-20 21:59 ` [PATCH 7/7] efi: disable LTO for EFI stub Arnd Bergmann
2018-12-17 22:50 ` [PATCH 0/7] ARM: hacks for link-time optimization Peter Zijlstra
2018-12-18 0:08 ` Andi Kleen
2018-12-18 9:18 ` Peter Zijlstra
2018-12-18 10:00 ` Peter Zijlstra
2018-12-21 14:23 ` Paul E. McKenney
2018-12-21 17:20 ` Andi Kleen
2018-12-21 18:00 ` Paul E. McKenney
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