From: Alan Kao <[email protected]> The EXPORT_SYMBOL(_mcount) for RISC-V ended up inside a CONFIG_FUNCTION_GRAPH_TRACER ifdef. If you enable modules without enabling CONFIG_FUNCTION_GRAPH_TRACER then you'll get a build error without this patch because the modules won't be able to find _mcount.
The new behavior is to export _mcount whenever CONFIG_FUNCTION_TRACER is defined. This matches what every other architecture is doing. Signed-off-by: Alan Kao <[email protected]> Cc: Greentime Hu <[email protected]> Cc: Zong Li <[email protected]> Signed-off-by: Palmer Dabbelt <[email protected]> --- arch/riscv/kernel/mcount.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/riscv/kernel/mcount.S b/arch/riscv/kernel/mcount.S index ce9bdc57a2a1..5721624886a1 100644 --- a/arch/riscv/kernel/mcount.S +++ b/arch/riscv/kernel/mcount.S @@ -126,5 +126,5 @@ do_trace: RESTORE_ABI_STATE ret ENDPROC(_mcount) -EXPORT_SYMBOL(_mcount) #endif +EXPORT_SYMBOL(_mcount) -- 2.16.4
