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riscv/ftrace: Export _mcount when DYNAMIC_FTRACE isn't set 

The EXPORT_SYMBOL(_mcount) for RISC-V ended up inside a
CONFIG_DYNAMIC_FTRACE ifdef.  If you enable modules without enabling
CONFIG_DYNAMIC_FTRACE 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 <alankao@andestech.com>
Cc: Greentime Hu <greentime@andestech.com>
Cc: Zong Li <zong@andestech.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
This commit is contained in:
Alan Kao 2018-05-08 11:21:57 +08:00 committed by Palmer Dabbelt
parent 889d746edd
commit 1dd985229d
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1 changed files with 1 additions and 1 deletions
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arch/riscv/kernel/mcount.S
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@ -126,5 +126,5 @@ do_trace:
RESTORE_ABI_STATE RESTORE_ABI_STATE
ret ret
ENDPROC(_mcount) ENDPROC(_mcount)
EXPORT_SYMBOL(_mcount)
#endif #endif
EXPORT_SYMBOL(_mcount)