On Tue, Oct 27, 2015 at 11:21 AM, Martin Jansa <[email protected]> wrote: > On Sat, Sep 05, 2015 at 02:39:14PM +0200, Mike Looijmans wrote: >> I got this weird build failure from the "krb" package: >> >> | make[3]: Entering directory >> '/TOPDIR/build/tmp/work/mips32el-oe-linux/krb5/1.13.2-r0/krb5-1.13.2/src/lib/krb5/ccache' >> | mipsel-oe-linux-gcc -mel -mabi=32 -mhard-float -march=mips32 >> --sysroot=/TOPDIR/build/tmp/sysroots/formuler1 -fPIC -DSHARED >> -DHAVE_CONFIG_H -I../../../include -I../../../include -I./ccapi -I. -I. >> -DKRB5_DEPRECATED=1 -DKRB5_PRIVATE -Os -pipe -g >> -feliminate-unused-debug-types -DDESTRUCTOR_ATTR_WORKS=1 >> -I/TOPDIR/build/tmp/sysroots/formuler1/usr/include/et -Wall -Wcast-align >> -Wshadow -Wmissing-prototypes -Wno-format-zero-length -Woverflow >> -Wstrict-overflow -Wmissing-format-attribute -Wmissing-prototypes >> -Wreturn-type -Wmissing-braces -Wparentheses -Wswitch -Wunused-function >> -Wunused-label -Wunused-variable -Wunused-value -Wunknown-pragmas >> -Wsign-compare -Werror=uninitialized -Werror=pointer-arith >> -Werror=declaration-after-statement >> -Werror-implicit-function-declaration -pthread -c cc_file.c -o >> cc_file.so.o && mv -f cc_file.so.o cc_file.so >> | cc_file.c: In function 'fcc_next_cred': >> | cc_file.c:368:9: error: 'maxsize' may be used uninitialized in this >> function [-Werror=maybe-uninitialized] >> | ret = load_data(context, id, maxsize, buf); >> | ^ >> | cc_file.c:1091:12: note: 'maxsize' was declared here >> | size_t maxsize; >> | ^ >> | cc1: some warnings being treated as errors >> >> Looking at the source, this doesn't make any sense at all. The >> declaration of the variable isn't even in the same method body. And the >> line it complains about is about the fifth time it passes that variable >> to another method. >> >> And working around it by initializing maxsize=0 just makes the compiler >> choke on a similar situation elsewhere: >> | packet.c:50:67: error: 'id' may be used uninitialized in this function >> >> >> I suspect the problem here is GCC and not the krb code. Anyone seen this? > > I've seen it today in my world builds, It seems to fail only when building > with -Os. > > I've seen similar issue in mdadm, also only with -Os. >
is this regression ? or seen for first time? > -- > Martin 'JaMa' Jansa jabber: [email protected] > > -- > _______________________________________________ > Openembedded-devel mailing list > [email protected] > http://lists.openembedded.org/mailman/listinfo/openembedded-devel > -- _______________________________________________ Openembedded-devel mailing list [email protected] http://lists.openembedded.org/mailman/listinfo/openembedded-devel
