objtool/klp: Extricate checksum calculation from validate_branch()

Browse source

In preparation for porting the checksum code to other arches, make its
functionality independent from the CFG reverse engineering code.

Move it into a standalone calculate_checksums() function which iterates
all functions and instructions directly, rather than being called inline
from do_validate_branch().

Since checksum_update_insn() is no longer called during CFG traversal,
it needs to manually iterate the alternatives.

Acked-by: Song Liu <song@kernel.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>

...

This commit is contained in:

Josh Poimboeuf 2026-04-03 12:11:17 -07:00

parent 6282e9f46b

commit 30cae58cdc

2 changed files with 80 additions and 32 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

6

tools/objtool/include/objtool/checksum.h

View file