linux-toradex.git/include/linux/objtool.h, branch v6.16-rc6 Linux kernel for Apalis and Colibri modules objtool: Fix up some outdated references to ENTRY/ENDPROC 2025-03-25T08:20:27+00:00 Josh Poimboeuf jpoimboe@kernel.org 2025-03-24T21:56:01+00:00 24fe172b50b5749c315349e740e4a09e3a0165d5 ENTRY and ENDPROC were deprecated years ago and replaced with SYM_FUNC_{START,END}. Fix up a few outdated references in the objtool documentation and comments. Also fix a few typos. Suggested-by: Brendan Jackman <jackmanb@google.com> Suggested-by: Miroslav Benes <mbenes@suse.cz> Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: https://lore.kernel.org/r/5eb7e06e1a0e87aaeda8d583ab060e7638a6ea8e.1742852846.git.jpoimboe@kernel.org 
ENTRY and ENDPROC were deprecated years ago and replaced with
SYM_FUNC_{START,END}.  Fix up a few outdated references in the objtool
documentation and comments.  Also fix a few typos.

Suggested-by: Brendan Jackman <jackmanb@google.com>
Suggested-by: Miroslav Benes <mbenes@suse.cz>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/5eb7e06e1a0e87aaeda8d583ab060e7638a6ea8e.1742852846.git.jpoimboe@kernel.org
x86/boot: Mark start_secondary() with __noendbr 2025-02-14T09:32:05+00:00 Peter Zijlstra peterz@infradead.org 2025-02-07T12:15:34+00:00 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) <peterz@infradead.org> Reviewed-by: Sami Tolvanen <samitolvanen@google.com> Link: https://lore.kernel.org/r/20250207122546.509520369@infradead.org 
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) <peterz@infradead.org>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Link: https://lore.kernel.org/r/20250207122546.509520369@infradead.org
objtool: Fix ANNOTATE_REACHABLE to be a normal annotation 2024-12-02T11:01:44+00:00 Peter Zijlstra peterz@infradead.org 2024-11-28T09:39:06+00:00 87116ae6da034242baf06e799f9f0e2a8ee6a796 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) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@kernel.org> Link: https://lore.kernel.org/r/20241128094312.494176035@infradead.org 
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) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Link: https://lore.kernel.org/r/20241128094312.494176035@infradead.org
objtool: Convert {.UN}REACHABLE to ANNOTATE 2024-12-02T11:01:44+00:00 Peter Zijlstra peterz@infradead.org 2024-11-28T09:39:05+00:00 e7a174fb43d24adca066e82d1cb9fdee092d48d1 Suggested-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@kernel.org> Link: https://lore.kernel.org/r/20241128094312.353431347@infradead.org 
Suggested-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Link: https://lore.kernel.org/r/20241128094312.353431347@infradead.org
objtool: Collect more annotations in objtool.h 2024-12-02T11:01:43+00:00 Peter Zijlstra peterz@infradead.org 2024-11-28T09:39:00+00:00 bb8170067470cc7af28e4386e600b1e0a6a8956a Suggested-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@kernel.org> Link: https://lore.kernel.org/r/20241128094311.786598147@infradead.org 
Suggested-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Link: https://lore.kernel.org/r/20241128094311.786598147@infradead.org
objtool: Convert ANNOTATE_INTRA_FUNCTION_CALL to ANNOTATE 2024-12-02T11:01:42+00:00 Peter Zijlstra peterz@infradead.org 2024-11-28T09:38:58+00:00 112765ca1cb9353e71b4f5af4e6e6c4a69c28d99 Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@kernel.org> Link: https://lore.kernel.org/r/20241128094311.584892071@infradead.org 
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Link: https://lore.kernel.org/r/20241128094311.584892071@infradead.org
objtool: Convert VALIDATE_UNRET_BEGIN to ANNOTATE 2024-12-02T11:01:42+00:00 Peter Zijlstra peterz@infradead.org 2024-11-28T09:38:56+00:00 18aa6118a1689b4d73c5ebbd917ae3f20c9c0db1 Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@kernel.org> Link: https://lore.kernel.org/r/20241128094311.358508242@infradead.org 
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Link: https://lore.kernel.org/r/20241128094311.358508242@infradead.org
objtool: Convert instrumentation_{begin,end}() to ANNOTATE 2024-12-02T11:01:41+00:00 Peter Zijlstra peterz@infradead.org 2024-11-28T09:38:55+00:00 317f2a64618c528539d17fe6957a64106087fbd2 Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@kernel.org> Link: https://lore.kernel.org/r/20241128094311.245980207@infradead.org 
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Link: https://lore.kernel.org/r/20241128094311.245980207@infradead.org
objtool: Convert ANNOTATE_NOENDBR to ANNOTATE 2024-12-02T11:01:41+00:00 Peter Zijlstra peterz@infradead.org 2024-11-28T09:38:53+00:00 22c3d58079688b697f36d670616e463cbb14d058 Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@kernel.org> Link: https://lore.kernel.org/r/20241128094311.042140333@infradead.org 
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Link: https://lore.kernel.org/r/20241128094311.042140333@infradead.org
objtool: Generic annotation infrastructure 2024-12-02T11:01:41+00:00 Peter Zijlstra peterz@infradead.org 2024-11-28T09:38:52+00:00 2116b349e29a2e9ba17ea2e45b31234e4b350793 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) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@kernel.org> Link: https://lore.kernel.org/r/20241128094310.932794537@infradead.org 
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) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Link: https://lore.kernel.org/r/20241128094310.932794537@infradead.org