git: LTO: Prevent -flto from creating crashing kernels.

[Rimvydas Jasinskas]

commit 2d84cb505b59a587cc37b385dee4696b846fcdd3
Author: zrj <rimvydas.jasinskas at gmail.com>
Date:   Mon Oct 17 20:34:19 2016 +0300

    LTO: Prevent -flto from creating crashing kernels.
    
    There is something peculiar how default count of lto partitions is created
    and used when compiling them. For now just enforce the use of a single one.
    GENERIC as it is right now is fine, however turning off certain features
    in config, causes the kernel fatal trap 12 very early on boot and reboot.
    Note that -g -flto -O2 compilations can easily slurp 1.5-1.8GB of ram!

Summary of changes:
 sys/conf/kern.pre.mk | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/2d84cb505b59a587cc37b385dee4696b846fcdd3


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