On 2017-02-13 3:41 PM, Alejandro Hernandez wrote:
These set of patches enable Link Time Optimization (LTO), they are meant specifically for linux-yocto-4.4, another set (rebased) will be sent for linux-yocto-4.8 and linux-yocto-4.9 respectively, these also complement the series sent to yocto-kernel-cache a few weeks ago.
The changes look fine to me, but in order to properly track them against upstream, I'd like to add a bit more logging to the commit headers. I assume these were posted to lkml (I haven't gone to look yet), and if they were posted, can we add a lkml archive link to the headers ? That allows me to track the progress and update/drop them as appropriate. Bruce
Andi Kleen (14): Kbuild, lto: Set TMPDIR for LTO v4 lto: Add __noreorder and mark initcalls __noreorder Kbuild, lto: Add Link Time Optimization support lto: Disable LTO for hweight functions Don't inline __const_udelay Mark spinlocks noinline when inline spinlocks are disabled Kbuild, bloat-o-meter: Ignore .lto_priv postfix Don't let LATENCYTOP and LOCKDEP select KALLSYMS_ALL lto, workaround: Disable LTO for BPF x86, perf: Fix __initconst declaration in rapl perf driver x86, workaround: Disable mm init BUILD_BUG_ON for LTO work around linker map issue sched: Move sched_to_prio arrays out of line fixup! Kbuild, lto: Add Link Time Optimization support Documentation/lto-build | 173 ++++++++++++++++++++++++++++ Makefile | 19 ++- arch/x86/Kconfig | 2 +- arch/x86/kernel/cpu/perf_event_intel_rapl.c | 2 +- arch/x86/kernel/vmlinux.lds.S | 2 + arch/x86/lib/delay.c | 2 +- arch/x86/mm/init_32.c | 2 + include/linux/compiler-gcc.h | 5 + include/linux/compiler.h | 4 + include/linux/init.h | 2 +- init/Kconfig | 73 ++++++++++++ kernel/bpf/Makefile | 5 + kernel/gcov/Kconfig | 2 +- kernel/locking/spinlock.c | 56 ++++----- kernel/sched/auto_group.c | 2 +- kernel/sched/core.c | 45 +++++++- kernel/sched/sched.h | 42 +------ lib/Kconfig.debug | 3 +- lib/Makefile | 4 +- scripts/Makefile.lto | 94 +++++++++++++++ scripts/Makefile.modpost | 7 +- scripts/bloat-o-meter | 1 + scripts/gcc-ld | 2 +- scripts/link-vmlinux.sh | 2 +- 24 files changed, 466 insertions(+), 85 deletions(-) create mode 100644 Documentation/lto-build create mode 100644 scripts/Makefile.lto
-- _______________________________________________ linux-yocto mailing list linux-yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/linux-yocto
