[Xen-devel] xen-unstable xenctrl_osdep_ENOSYS.c does not compile with debug off

[John Weekes <lists.xen@xxxxxxxxxxxxxxxxxx>]

Ian, at least with my gcc, compiling with debug disabled currently fails here. Compiling with debug enabled (the default) seems to work properly.

xen-unstable.hg # make tools
...
gcc  -DPIC -O2 -fomit-frame-pointer -m64 -fno-strict-aliasing -std=gnu99 -Wall -Wstrict-prototypes -Wno-unused-value -Wdeclaration-after-statement  -D__XEN_TOOLS__ -MMD -MF .xenctrl_osdep_ENOSYS.opic.d  -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_GNU_SOURCE -I../../xen/common/libelf -Werror -Wmissing-prototypes  -I. -I../xenstore -I../include -fPIC -c -o xenctrl_osdep_ENOSYS.opic xenctrl_osdep_ENOSYS.c
cc1: warnings being treated as errors
xenctrl_osdep_ENOSYS.c: In function 'ENOSYS_privcmd_hypercall':
xenctrl_osdep_ENOSYS.c:30: error: array subscript is above array bounds
make[4]: *** [xenctrl_osdep_ENOSYS.opic] Error 1
make[4]: Leaving directory `/usr/src/xen-unstable.hg/tools/libxc'
make[3]: *** [build] Error 2
make[3]: Leaving directory `/usr/src/xen-unstable.hg/tools/libxc'
make[2]: *** [subdir-install-libxc] Error 2
make[2]: Leaving directory `/usr/src/xen-unstable.hg/tools'
make[1]: *** [subdirs-install] Error 2
make[1]: Leaving directory `/usr/src/xen-unstable.hg/tools'
make: *** [install-tools] Error 2

xen-unstable.hg # gcc -v
Using built-in specs.
Target: x86_64-pc-linux-gnu
Configured with: /var/tmp/portage/sys-devel/gcc-4.4.4-r2/work/gcc-4.4.4/configure --prefix=/usr --bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/4.4.4 --includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.4/include --datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.4.4 --mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.4.4/man --infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.4.4/info --with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.4/include/g++-v4 --host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --disable-altivec --disable-fixed-point --without-ppl --without-cloog --enable-nls --without-included-gettext --with-system-zlib --disable-werror --enable-secureplt --enable-multilib --enable-libmudflap --disable-libssp --enable-libgomp --with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/4.4.4/python --enable-checking=release --disable-libgcj --enable-languages=c,c++,fortran --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --with-bugurl=http://bugs.gentoo.org/ --with-pkgversion='Gentoo 4.4.4-r2 p1.2, pie-0.4.5'
Thread model: posix
gcc version 4.4.4 (Gentoo 4.4.4-r2 p1.2, pie-0.4.5)

I backed out 97779ffa76f5 and 81987b3eac08 and tools compile again w/o debug.

-John

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