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Date: Tue, 27 Jan 2015 07:19:42 +0100 From: Dominik Vogt <vogt@...ux.vnet.ibm.com> To: Steven Rostedt <rostedt@...dmis.org> Cc: Heiko Carstens <heiko.carstens@...ibm.com>, Masami Hiramatsu <maasami.hiramatsu.pt@...achi.com>, Vojtech Pavlik <vojtech@...e.cz>, Jiri Kosina <jkosina@...e.cz>, Jiri Slaby <jslaby@...e.cz>, Andreas Krebbel <krebbel@...ux.vnet.ibm.com>, Martin Schwidefsky <schwidefsky@...ibm.com>, linux-kernel@...r.kernel.org Subject: Re: [PATCH/RFC 2/3] ftrace: introduce nohotpatch function attribute On Mon, Jan 26, 2015 at 09:37:01AM -0500, Steven Rostedt wrote: > On Mon, 26 Jan 2015 13:54:53 +0100 > Heiko Carstens <heiko.carstens@...ibm.com> wrote: > > s390 will use the hotpatch attribute for function tracing, therefore > > introduce a nohotpatch define, depending on CC_USING_HOTPATCH, and add it > > to the existing notrace define. > > Are the two mutually exclusive? That is, can you have -pg and hotpatch > together? Reason why I ask is, if you have either -pg or hotpatch, then > we only need "no_instrument_function" or "hotpatch" in the notrace > define, not both. But I could be wrong. While the kernel may use only profiling or hotpatch at the same time, Gcc is able to generate both for the same function. Ciao Dominik ^_^ ^_^ -- Dominik Vogt IBM Germany -- 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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