Messages in this thread | | | From | Geert Uytterhoeven <> | Date | Tue, 22 Jan 2019 12:44:18 +0100 | Subject | Re: proc.c:undefined reference to `strcmp' |
| |
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? 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
Gr{oetje,eeting}s,
Geert
-- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
| |