kernel-hacking-2024-linux-s.../include
Laura Abbott 9afb719e70 kbuild: Add build salt to the kernel and modules
In Fedora, the debug information is packaged separately (foo-debuginfo) and
can be installed separately. There's been a long standing issue where only
one version of a debuginfo info package can be installed at a time. There's
been an effort for Fedora for parallel debuginfo to rectify this problem.

Part of the requirement to allow parallel debuginfo to work is that build ids
are unique between builds. The existing upstream rpm implementation ensures
this by re-calculating the build-id using the version and release as a
seed. This doesn't work 100% for the kernel because of the vDSO which is
its own binary and doesn't get updated when embedded.

Fix this by adding some data in an ELF note for both the kernel and modules.
The data is controlled via a Kconfig option so distributions can set it
to an appropriate value to ensure uniqueness between builds.

Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-07-18 01:18:05 +09:00
..
acpi
asm-generic mm: allow arch to supply p??_free_tlb functions 2018-07-14 11:11:09 -07:00
clocksource
crypto Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00
drm
dt-bindings dt-bindings: clock: imx6ul: Do not change the clock definition order 2018-06-29 11:40:20 -07:00
keys
kvm
linux kbuild: Add build salt to the kernel and modules 2018-07-18 01:18:05 +09:00
math-emu
media
memory
misc
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-07-02 11:18:28 -07:00
pcmcia
ras
rdma
scsi
soc
sound
target
trace
uapi rseq: Remove unused types_32_64.h uapi header 2018-07-10 22:18:52 +02:00
video
xen