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Enable objtool coverage for the sample ftrace modules by adding ELF annotations to the asm trampoline functions. samples/ftrace/ftrace-direct.o: warning: objtool: .text+0x0: unreachable instruction samples/ftrace/ftrace-direct-modify.o: warning: objtool: .text+0x0: unreachable instruction samples/ftrace/ftrace-direct-too.o: warning: objtool: .text+0x0: unreachable instruction Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>