Messages in this thread | | | Subject | Re: [kbuild-all] proc.c:undefined reference to `strcmp' | From | Rong Chen <> | Date | Thu, 24 Jan 2019 17:55:42 +0800 |
| |
On 1/22/19 7:44 PM, Geert Uytterhoeven wrote: > On Tue, Jan 22, 2019 at 11:11 AM kbuild test robot <lkp@intel.com> wrote: >> It's probably a bug fix that unveils the link errors. >> >> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master >> head: 47bfa6d9dc8c060bf56554a465c9031e286d2f80 >> commit: 35004f2e55807a1a1491db24ab512dd2f770a130 lib/genalloc.c: include vmalloc.h >> date: 2 weeks ago >> config: m68k-allmodconfig (attached as .config) >> compiler: m68k-linux-gnu-gcc (Debian 8.2.0-11) 8.2.0 >> reproduce: >> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross >> chmod +x ~/bin/make.cross >> git checkout 35004f2e55807a1a1491db24ab512dd2f770a130 >> # save the attached .config to linux build tree >> GCC_VERSION=8.2.0 make.cross ARCH=m68k >> >> All errors (new ones prefixed by >>): >> >> m68k-linux-gnu-ld: block/partitions/ldm.o: in function `ldm_partition': >> ldm.c:(.text+0x1900): undefined reference to `strcmp' >> m68k-linux-gnu-ld: ldm.c:(.text+0x1964): undefined reference to `strcmp' >> m68k-linux-gnu-ld: drivers/rtc/proc.o: in function `is_rtc_hctosys': >>>> proc.c:(.text+0x18c): undefined reference to `strcmp' >> m68k-linux-gnu-ld: drivers/watchdog/watchdog_pretimeout.o: in function `watchdog_register_governor': >> watchdog_pretimeout.c:(.text+0x142): undefined reference to `strcmp' >> m68k-linux-gnu-ld: drivers/devfreq/devfreq.o: in function `try_then_request_governor': >> devfreq.c:(.text+0x9c6): undefined reference to `strcmp' > I guess this bisection is a false positive. Have you just upgraded to gcc 8?
yes, we upgraded to gcc 8 recently.
> Gcc 8 replaces the strncmp() in is_rtc_hctosys() to strcmp(). > Will be fixed in v5.1 by > https://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k.git/commit/?h=for-v5.1&id=28713169d879b67be2ef2f84dcf54905de238294
Thanks for your explanation. we'll blacklist it.
Best Regards, Rong Chen
> > Gr{oetje,eeting}s, > > Geert >
| |