en Copyright 2015 Java http://kernelsources.org:8080/source/history/linux/tools/objtool/tests/generic/test-static-call-new.sh#5b6dca02b3e2254d2fd5706d76d7ab4610a67296 Merge tag 'objtool-core-2026-10-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipPull objtool updates from Ingo Molnar: - Add unit test suite for objtool klp functionality and known failure modes (by Song Liu and Puranjay Mohan, with fixes by Joe Lawrence)* tag 'objtool-core-2026-10-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (58 commits) objtool/klp: Add test for ThinLTO symbols sharing a demangled name objtool/klp: Add test for Clang switch jump tables objtool/klp: Add test for UBSAN metadata in an unchanged function objtool/klp: Add test for absolute and __ADDRESSABLE symbols objtool/klp: Add test for a patch which strips a data annotation objtool/klp: Add test for the alignment of cloned data sections objtool/klp: Add test for alternative replacement code in checksums objtool/klp: Add test for instruction operand checksums objtool/klp: Add test for a static call introduced by the patch objtool/klp: Add test for tracepoint and pr_debug static branch keys objtool/klp: Add test for a static branch introduced by the patch objtool/klp: Add test for symbols with no checksum entry of their own objtool/klp: Add test for data object checksums objtool/klp: Test text annotations on alternative replacements objtool/klp: Test a hand-built livepatch module's static call keys objtool/klp: Test rejection of a file-local static branch key objtool/klp: Add test for symbols whose linkage the patch changes objtool/klp: Add test for kCFI prefix symbols and traps objtool/klp: Add test for __bug_table, __ex_table and __mcount_loc extraction objtool/klp: Add test for static locals which must not be correlated ... List of files: /linux/tools/objtool/tests/generic/test-static-call-new.sh Wed, 21 Oct 2026 00:55:04 +0200 Linus Torvalds <torvalds@linux-foundation.org> http://kernelsources.org:8080/source/history/linux/tools/objtool/tests/generic/test-static-call-new.sh#938816b7d15644a486ebcea5d58994664b8cc04c objtool/klp: Add test for a static call introduced by the patchThe counterpart to the static branch case: a patch may add a static call toa function which had none, so the .static_call_sites entry is new and thereis nothing in the original to correlate it against.Where the key lives still decides whether that is allowed. A vmlinux keyis reachable; a module-owned one is not, for the same reason an existingmodule key is not -- late module patching lets the livepatch load first andthe unresolved entry is dereferenced when the module arrives. Both halvesare here because they fail in opposite directions: dropping the new entryleaves a static call the kernel never patches, and accepting a newmodule-owned one is the corruption the check exists to prevent.Both halves are one test over one fixture: built with -DNEW_CALL the key isvmlinux's and the new entry has to be carried in; built with -DMODNAME aswell the key belongs to a module, klp diff has to reject it, and no outputobject may be left behind. The premise is asserted first -- the originalmust have no .static_call_sites at all -- since otherwise this is a secondcopy of test-static-call-module-key.Covers the same ground as corpus/x86_64/static-call-vmlinux-new andcorpus/x86_64/static-call-module-new in Joe Lawrence's klp-build unit testcorpus.Assisted-by: Claude:claude-opus-4Based-on-test-by: Joe Lawrence <joe.lawrence@redhat.com>Assisted-by: Claude:claude-opus-5Signed-off-by: Song Liu <song@kernel.org>Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>Signed-off-by: Ingo Molnar <mingo@kernel.org>Link: https://patch.msgid.link/20260916184351.2720310-51-song@kernel.org List of files: /linux/tools/objtool/tests/generic/test-static-call-new.sh Wed, 16 Sep 2026 20:43:43 +0200 Song Liu <song@kernel.org>