kernel/include/linux/objtool.h, branch linux-6.14.y

x86/boot: Mark start_secondary() with __noendbr

2025-05-29T09:13:23Z

[ Upstream commit 93f16a1ab78ca56e3cd997d1ea54c214774781ac ] The handoff between the boot stubs and start_secondary() are before IBT is enabled and is definitely not subject to kCFI. As such, suppress all that for this function. Notably when the ENDBR poison would become fatal (ud1 instead of nop) this will trigger a tripple fault because we haven't set up the IDT to handle #UD yet. Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Sami Tolvanen Link: https://lore.kernel.org/r/20250207122546.509520369@infradead.org Signed-off-by: Sasha Levin

objtool: Fix ANNOTATE_REACHABLE to be a normal annotation

2024-12-02T11:01:44Z

Currently REACHABLE is weird for being on the instruction after the instruction it modifies. Since all REACHABLE annotations have an explicit instruction, flip them around. Signed-off-by: Peter Zijlstra (Intel) Acked-by: Josh Poimboeuf Link: https://lore.kernel.org/r/20241128094312.494176035@infradead.org

objtool: Convert {.UN}REACHABLE to ANNOTATE

2024-12-02T11:01:44Z

Suggested-by: Josh Poimboeuf Signed-off-by: Peter Zijlstra (Intel) Acked-by: Josh Poimboeuf Link: https://lore.kernel.org/r/20241128094312.353431347@infradead.org

objtool: Collect more annotations in objtool.h

2024-12-02T11:01:43Z

Suggested-by: Josh Poimboeuf Signed-off-by: Peter Zijlstra (Intel) Acked-by: Josh Poimboeuf Link: https://lore.kernel.org/r/20241128094311.786598147@infradead.org

objtool: Convert ANNOTATE_INTRA_FUNCTION_CALL to ANNOTATE

2024-12-02T11:01:42Z

Signed-off-by: Peter Zijlstra (Intel) Acked-by: Josh Poimboeuf Link: https://lore.kernel.org/r/20241128094311.584892071@infradead.org

objtool: Convert VALIDATE_UNRET_BEGIN to ANNOTATE

2024-12-02T11:01:42Z

Signed-off-by: Peter Zijlstra (Intel) Acked-by: Josh Poimboeuf Link: https://lore.kernel.org/r/20241128094311.358508242@infradead.org

objtool: Convert instrumentation_{begin,end}() to ANNOTATE

2024-12-02T11:01:41Z

Signed-off-by: Peter Zijlstra (Intel) Acked-by: Josh Poimboeuf Link: https://lore.kernel.org/r/20241128094311.245980207@infradead.org

objtool: Convert ANNOTATE_NOENDBR to ANNOTATE

2024-12-02T11:01:41Z

Signed-off-by: Peter Zijlstra (Intel) Acked-by: Josh Poimboeuf Link: https://lore.kernel.org/r/20241128094311.042140333@infradead.org

objtool: Generic annotation infrastructure

2024-12-02T11:01:41Z

Avoid endless .discard.foo sections for each annotation, create a single .discard.annotate_insn section that takes an annotation type along with the instruction. Signed-off-by: Peter Zijlstra (Intel) Acked-by: Josh Poimboeuf Link: https://lore.kernel.org/r/20241128094310.932794537@infradead.org

x86/bugs: Rename CONFIG_CPU_SRSO => CONFIG_MITIGATION_SRSO

2024-01-10T09:52:29Z

Step 9/10 of the namespace unification of CPU mitigations related Kconfig options. Suggested-by: Josh Poimboeuf Signed-off-by: Breno Leitao Signed-off-by: Ingo Molnar Acked-by: Josh Poimboeuf Cc: Linus Torvalds Link: https://lore.kernel.org/r/20231121160740.1249350-10-leitao@debian.org