Date: Mon, 5 Feb 1996 14:42:58 PST From: "Marty Leisner" <leisner@sdsp.mc.xerox.com> To: <jdli@linux.csie.nctu.edu.tw> Cc: Chien-Ta Lee <jdli@linux.csie.nctu.edu.tw>, freebsd-current@freebsd.org Subject: Re: make world with -fomit-frame-pointer Message-ID: <9602052242.AA01191@gnu.mc.xerox.com> In-Reply-To: Your message of "Mon, 05 Feb 1996 09:20:08 PST." <9602051720.AA00240@gnu.mc.xerox.com>
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In message <9602051720.AA00240@gnu.mc.xerox.com>, you write: >> >> Hi : >> >> I noticed an gcc option from recently pentium-gcc discussions, >> that's "-fomit-frame-pointer". (I remembered linux often use it) >> I man gcc and it said that the option will make debug impossible. >> I always making my world with "-O2 -m486", is it ok to use this >> option to make world ? How about make kernel ?! >> About make kernel, will "-O2" or "-O2 -m486" make kernel run faster ? >> >> Thanks. >> -- >> >> I didn't read the message fully before I replied... -fomit-frame-pointer is something I've only seen in Linux. With -fomit-frame-pointer, you can't debug code...core dumps are meaningless...Please don't do it!! The only place where it may be useful is in the kernel. martyhome | help
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