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Message-Id: <96110ea5dd4d3d54eb97d0bb708a5bd81c7a50b5.1256135456.git.wuzhangjin@gmail.com> Date: Wed, 21 Oct 2009 22:34:59 +0800 From: Wu Zhangjin <wuzhangjin@...il.com> To: linux-kernel@...r.kernel.org, linux-mips@...ux-mips.org Cc: Wu Zhangjin <wuzhangjin@...il.com>, Thomas Gleixner <tglx@...utronix.de>, Ralf Baechle <ralf@...ux-mips.org>, Nicholas Mc Guire <der.herr@...r.at>, Steven Rostedt <rostedt@...dmis.org> Subject: [PATCH -v4 5/9] tracing: enable HAVE_FUNCTION_TRACE_MCOUNT_TEST for MIPS Signed-off-by: Wu Zhangjin <wuzhangjin@...il.com> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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