В Sat, 4 Apr 2015 22:49:28 +0200 Michael Zimmermann <sigmaepsilo...@gmail.com> пишет:
> I think I found a bug but I'm not sure. > > http://git.savannah.gnu.org/gitweb/?p=grub.git;a=blob;f=grub-core/lib/division.c;h=920a79f18b7a7180bc5bcf18987c043b1df56687;hb=refs/heads/master#l53 > at line 53 u write a value to ro: > *ro = r; > > now take a look at the callers: > http://git.savannah.gnu.org/gitweb/?p=grub.git;a=blob;f=grub-core/kern/compiler-rt.c;h=d4cc15513aabea3061bd2dddc896b105bb180a5b;hb=refs/heads/master > > some look like this which should be ok: > grub_divmod64s (a, b, &ret); > > but there are others like this: > grub_divmod64s (a, b, 0); > > I got a "data abort, translation fault on write" exception after > compiling a lib which uses that division function. > Fixed. Unfortunately there does not appear any easy way to regression test it. Dereferencing 0x0 pointer does not trigger an error, unless you setup address mapping appropriately. Thank you for report! _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
