Messages in this thread | | | Subject | Re: [PATCH v5 0/8] Add objtool and orc support for LoongArch | From | Tiezhu Yang <> | Date | Thu, 7 Dec 2023 15:14:19 +0800 |
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On 12/02/2023 09:52 PM, Huacai Chen wrote: > Hi, Tiezhu, > > There are still some build warnings. > > If FUNCTION_TRACER enabled, we get > AS arch/loongarch/kernel/mcount_dyn.o > arch/loongarch/kernel/mcount_dyn.o: warning: objtool: > ftrace_common+0x0: unreachable instruction > arch/loongarch/kernel/mcount_dyn.o: warning: objtool: > ftrace_caller+0x0: unreachable instruction > arch/loongarch/kernel/mcount_dyn.o: warning: objtool: > ftrace_regs_caller+0x0: unreachable instruction > arch/loongarch/kernel/mcount_dyn.o: warning: objtool: > ftrace_graph_caller+0x0: unreachable instruction > arch/loongarch/kernel/mcount_dyn.o: warning: objtool: > return_to_handler+0x0: unreachable instruction > arch/loongarch/kernel/mcount_dyn.o: warning: objtool: > ftrace_stub_direct_tramp+0x0: unreachable instruction > > AS arch/loongarch/kernel/rethook_trampoline.o > arch/loongarch/kernel/rethook_trampoline.o: warning: objtool: > arch_rethook_trampoline+0x0: unreachable instruction
I tested with the default config loongson3_defconfig, the FUNCTION_TRACE is not enabled, let me try to fix it.
> And when I use the latest binutils/gcc for native build, there are > some warnings in some files from the {init, kernel} directory. But > cross-building is fine, I don't know why.
I can not reproduce it for native build, it works well, I will analysis if it can reproduce someday.
Thanks, Tiezhu
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