git: kernel: Expose the build-ID via "kern.build_id" sysctl

[Aaron LI]

commit 4e67623b16745c432edc850fedc01d1b086bdc32
Author: Aaron LI <aly at aaronly.me>
Date:   Sun Jun 21 13:52:23 2026 +0800

    kernel: Expose the build-ID via "kern.build_id" sysctl
    
    Update the linker scripts to expose the start and end of the
    linker-generated build-ID, and add the "kern.build_id" sysctl handler to
    fetch the information.
    
    A subsequent commit will update uname(1) to report it as well.
    
    Obtained-from: FreeBSD (https://reviews.freebsd.org/D20326)

Summary of changes:
 sys/kern/kern_mib.c                         | 44 +++++++++++++++++++++++++++++
 sys/platform/pc64/conf/ldscript.x86_64      |  6 +++-
 sys/platform/vkernel64/conf/ldscript.x86_64 |  6 +++-
 3 files changed, 54 insertions(+), 2 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/4e67623b16745c432edc850fedc01d1b086bdc32


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