linux-stable/arch/um
Peter Zijlstra ed53a0d971 x86/alternative: Use .ibt_endbr_seal to seal indirect calls
Objtool's --ibt option generates .ibt_endbr_seal which lists
superfluous ENDBR instructions. That is those instructions for which
the function is never indirectly called.

Overwrite these ENDBR instructions with a NOP4 such that these
function can never be indirect called, reducing the number of viable
ENDBR targets in the kernel.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lore.kernel.org/r/20220308154319.822545231@infradead.org
2022-03-15 10:32:47 +01:00
..
configs kunit: Move default config from arch/um -> tools/testing/kunit 2021-06-23 17:49:17 -06:00
drivers virtio,vdpa,qemu_fw_cfg: features, cleanups, fixes 2022-01-18 10:05:48 +02:00
include um: remove set_fs 2021-12-22 17:56:56 +01:00
kernel x86/alternative: Use .ibt_endbr_seal to seal indirect calls 2022-03-15 10:32:47 +01:00
os-Linux um: Use swap() to make code cleaner 2021-12-21 21:41:04 +01:00
scripts License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
.gitignore um: gitignore: Add kernel/capflags.c 2021-12-21 21:22:43 +01:00
Kbuild kbuild: require all architectures to have arch/$(SRCARCH)/Kbuild 2021-05-26 23:10:37 +09:00
Kconfig Peter Zijlstra says: 2022-01-11 17:24:45 -08:00
Kconfig.debug um: Disable CONFIG_GCOV with MODULES 2021-04-15 23:10:33 +02:00
Makefile kbuild: do not require sub-make for separate output tree builds 2021-08-10 08:23:39 +09:00
Makefile-os-Linux
Makefile-skas