Signed-off-by: Wu Zhangjin <wuzhangjin@xxxxxxxxx> --- arch/mips/Kconfig | 1 + arch/mips/kernel/mcount.S | 4 ++++ 2 files changed, 5 insertions(+), 0 deletions(-) diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 6b33e88..a9bd992 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -5,6 +5,7 @@ config MIPS select HAVE_OPROFILE select HAVE_ARCH_KGDB select HAVE_FUNCTION_TRACER + select HAVE_FUNCTION_TRACE_MCOUNT_TEST # Horrible source of confusion. Die, die, die ... select EMBEDDED select RTC_LIB if !LEMOTE_FULOONG2E diff --git a/arch/mips/kernel/mcount.S b/arch/mips/kernel/mcount.S index 5bb8055..82e54ab 100644 --- a/arch/mips/kernel/mcount.S +++ b/arch/mips/kernel/mcount.S @@ -69,6 +69,10 @@ NESTED(_mcount, PT_SIZE, ra) RESTORE_SP_FOR_32BIT + lw t0, function_trace_stop + bnez t0, ftrace_stub + nop + PTR_LA t0, ftrace_stub PTR_L t1, ftrace_trace_function /* please don't use t1 later, safe? */ bne t0, t1, static_trace -- 1.6.2.1
