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linux/tools/objtool
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Peter Zijlstra 89bc853eae objtool: Find unused ENDBR instructions 
Find all ENDBR instructions which are never referenced and stick them
in a section such that the kernel can poison them, sealing the
functions from ever being an indirect call target.

This removes about 1-in-4 ENDBR instructions.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lore.kernel.org/r/20220308154319.763643193@infradead.org
2022-03-15 10:32:47 +01:00
..
arch/x86 objtool: Add IBT/ENDBR decoding 2022-03-15 10:32:46 +01:00
Documentation objtool: Support stack layout changes in alternatives 2021-01-14 09:53:54 -06:00
include/objtool objtool: Find unused ENDBR instructions 2022-03-15 10:32:47 +01:00
.gitignore objtool: Rework header include paths 2021-01-13 18:13:14 -06:00
Build objtool: Enable compilation of objtool for all architectures 2020-05-20 09:17:28 -05:00
builtin-check.c objtool: Validate IBT assumptions 2022-03-15 10:32:46 +01:00
builtin-orc.c objtool: Collate parse_options() users 2021-03-06 12:44:23 +01:00
check.c objtool: Find unused ENDBR instructions 2022-03-15 10:32:47 +01:00
elf.c objtool: Ignore extra-symbol code 2022-03-15 10:32:43 +01:00
Makefile objtool: Refactor ORC section generation 2021-01-14 09:53:42 -06:00
objtool.c objtool: Find unused ENDBR instructions 2022-03-15 10:32:47 +01:00
orc_dump.c x86/unwind/orc: Change REG_SP_INDIRECT 2021-02-10 20:53:51 +01:00
orc_gen.c Merge branch 'objtool/urgent' 2021-10-07 00:40:17 +02:00
special.c objtool,x86: Replace alternatives with .retpoline_sites 2021-10-28 23:25:25 +02:00
sync-check.sh Merge branch 'x86/cpu' into WIP.x86/core, to merge the NOP changes & resolve a semantic conflict 2021-04-02 12:36:30 +02:00
weak.c objtool: Refactor ORC section generation 2021-01-14 09:53:42 -06:00