Messages in this thread | | | From | Arnd Bergmann <> | Subject | [PATCH 0/7] ARM: hacks for link-time optimization | Date | Tue, 20 Feb 2018 22:59:47 +0100 |
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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
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