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Clang emits calls to mcount for -pg on sparc64, while the existing ftrace support only exports the _mcount name. With FUNCTION_TRACER enabled, modules can therefore keep relocations against mcount and fail during modpost: ERROR: modpost: "mcount" [arch/sparc/kernel/chmc.ko] undefined! _mcount and mcount are aliases in arch/sparc/lib/mcount.S. Export the plain mcount alias as well so Clang-built modules can resolve their profiling call target. Assisted-by: Codex:GPT-5 Signed-off-by: Rosen Penev <[email protected]> Reviewed-by: Andreas Larsson <[email protected]> Signed-off-by: Andreas Larsson <[email protected]>