[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] xen-unstable stubdom build-failure when debug=n
On Mon, 2014-07-21 at 17:13 +0100, Ian Campbell wrote: > My guest is that turning off debug increases the optimisation level > which somehow makes gcc decide this code is now wrong. Well, I was right, but not how I thought... Turns out there are two tpm_tis.c's in our source base and I was looking at the wrong one ;-) The code in extras/mini-os/tpm_tis.c rather than stubdom/ioemu/hw/tpm_tis.c does look more like it might plausibly generate the error I'm seeing this is: tpm_tis.c:618:71: error: array subscript is below array bounds [-Werror=array-bounds] Line 618 does appear to include the use of a signed variable as an array offset, but I'm not sure how or why gcc is proving that it is negative. The code in question appears to be identical in 4.4.0 . I'm not sure what has changed. Perhaps Daniel (CCd) has some idea what is going on here. There's still the question of the error Sander is seeing which is stubdom/lwip-x86_64/src/core/dhcp.c:1359:71: error: array subscript is above array bounds [-Werror=array-bounds] Sander, did this used to work? If so can you identify when the regression occurred? Ian. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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