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