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From: Ian Campbell <Ian.Campbell@citrix.com>
To: linux-kernel <linux-kernel@vger.kernel.org>
Cc: linuxppc-dev@lists.ozlabs.org, Michal Marek <mmarek@suse.cz>,
	Stephen Warren <swarren@nvidia.com>,
	Rob Herring <rob.herring@calxeda.com>,
	Grant Likely <grant.likely@secretlab.ca>,
	JonLoeliger <jdl@jdl.com>,
	linux-kbuild@vger.kernel.org
Subject: DTB build failure due to preproccessing
Date: Fri, 31 May 2013 11:29:30 +0100	[thread overview]
Message-ID: <1369996170.5199.68.camel@zakaz.uk.xensource.com> (raw)

This affects arch/powerpc/boot/dts/virtex440-ml510.dts but I think it is
actually a more general issue:

        $ make ARCH=powerpc CROSS_COMPILE=powerpc-linux- virtex440-ml510.dtb 
          CC      scripts/mod/devicetable-offsets.s
          GEN     scripts/mod/devicetable-offsets.h
          HOSTCC  scripts/mod/file2alias.o
          HOSTLD  scripts/mod/modpost
          DTC     arch/powerpc/boot/virtex440-ml510.dtb
        Error: arch/powerpc/boot/dts/virtex440-ml510.dts:374.6-7 syntax error
        FATAL ERROR: Unable to parse input tree
        make[1]: *** [arch/powerpc/boot/virtex440-ml510.dtb] Error 1
        make: *** [virtex440-ml510.dtb] Error 2
        
Line 374 is the "IDSEL 0x16..." line here:
			interrupt-map = <
				/* IRQ mapping for pci slots and ALI M1533
				 ...
				 * management core also isn't used.
				 */

				/* IDSEL 0x16 / dev=6, bus=0 / PCI slot 3 */
				0x3000 0 0 1 &xps_intc_0 3 2
				0x3000 0 0 2 &xps_intc_0 2 2
				0x3000 0 0 3 &xps_intc_0 5 2
				0x3000 0 0 4 &xps_intc_0 4 2

Which gets preprocessed into:
           interrupt-map = <
        # 375 "arch/powerpc/boot/dts/virtex440-ml510.dts"
            0x3000 0 0 1 &xps_intc_0 3 2
            0x3000 0 0 2 &xps_intc_0 2 2
            0x3000 0 0 3 &xps_intc_0 5 2
            0x3000 0 0 4 &xps_intc_0 4 2

If I manually remove the "# 375 " line then that fixes the error
(although there is then a subsequent one of the same type).

I suppose this is a bug in dtc? It appears to have at least some
awareness of these preprocessor line number comments since it manages to
report the original source line number.

Ian.


             reply	other threads:[~2013-05-31 10:29 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-31 10:29 Ian Campbell [this message]
2013-05-31 11:48 ` DTB build failure due to preproccessing Grant Likely
2013-05-31 11:58   ` Ian Campbell
2013-05-31 13:01   ` Jon Loeliger
2013-05-31 13:07     ` Ian Campbell
2013-05-31 13:16     ` Ian Campbell
2013-05-31 16:04   ` Stephen Warren
2013-05-31 16:31     ` Grant Likely
2013-06-03  9:44       ` Ian Campbell
2013-05-31 16:37 ` Stephen Warren

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