| From | Josh Poimboeuf <> | Subject | [PATCH 06/21] x86/ftrace: Add UNWIND_HINT_FUNC annotation for ftrace_stub | Date | Thu, 14 Jan 2021 13:40:02 -0600 |
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Prevent an unreachable objtool warning after the sibling call detection gets improved. ftrace_stub() is basically a function, annotate it as such.
Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> --- arch/x86/kernel/ftrace_64.S | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/x86/kernel/ftrace_64.S b/arch/x86/kernel/ftrace_64.S index 0d54099c2a3a..58d125ed9d1a 100644 --- a/arch/x86/kernel/ftrace_64.S +++ b/arch/x86/kernel/ftrace_64.S @@ -184,6 +184,7 @@ SYM_INNER_LABEL(ftrace_graph_call, SYM_L_GLOBAL) * It is also used to copy the retq for trampolines. */ SYM_INNER_LABEL_ALIGN(ftrace_stub, SYM_L_WEAK) + UNWIND_HINT_FUNC retq SYM_FUNC_END(ftrace_epilogue) -- 2.29.2
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