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	Thu, 20 Aug 2015 13:26:44 -0400
Date: Thu, 20 Aug 2015 19:19:24 +0200
From: Sam Ravnborg <sam@ravnborg.org>
Subject: Re: how to echo $(KBUILD_CFLAGS)
Message-ID: <20150820171924.GA2620@ravnborg.org>
References: <848BD1798F19584EADB3CD55379CFD64665E5A2C@SHMX01.s3graphics.com>
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To: RaphaelWu@viatech.com.cn
Cc: mmarek@suse.com, linux-kbuild@vger.kernel.org

Hi RaphaelWu

Try this:
 
obj-m += test.o

$(warning Before-KBUILD_CFLAGS=$(KBUILD_CFLAGS))

KBUILD_CFLAGS := $(subst -pg,,$(KBUILD_CFLAGS))

$(warning After-KBUILD_CFLAGS=$(KBUILD_CFLAGS))

	Sam