en Copyright 2015 Java http://kernelsources.org:8080/source/history/linux/tools/objtool/tests/generic/test-thinlto-local.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-thinlto-local.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-thinlto-local.sh#7fd24723f1601340ee09bca93989bd1fb4515783 objtool/klp: Add test for correlation across ThinLTO name manglingThinLTO promotes the file-local symbols an imported function touches,renaming them name.llvm.<hash>. The hash is content derived, so it changeswhenever the module does: original: counter.llvm.13663304415433785070 patched: counter.llvm.10543383937958011340Correlating the two objects therefore requires demangling the suffix;matching raw names would see two unrelated symbols and treat the variableas new.The resulting klp relocation also has to name the original symbol, sincethat is the one in the running kernel's kallsyms. Naming the patchedbuild's symbol produces a relocation which can never be resolved.ThinLTO is a clang feature, so the test declares itself clang-only. Italso needs an lld from the same LLVM release as $CC; a mismatched pairfails with "Invalid summary version", which reads like a broken test ratherthan a broken environment, so probe for a working lld and skip if there isnone.Signed-off-by: Puranjay Mohan <puranjay@kernel.org>Signed-off-by: Song Liu <song@kernel.org>Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>Signed-off-by: Ingo Molnar <mingo@kernel.org>Assisted-by: Claude:claude-opus-5Link: https://patch.msgid.link/20260916184351.2720310-25-song@kernel.org List of files: /linux/tools/objtool/tests/generic/test-thinlto-local.sh Wed, 16 Sep 2026 20:43:17 +0200 Puranjay Mohan <puranjay@kernel.org>