Am Samstag, 11. November 2017, 10:15:00 MEZ hat Liu Hao <lh_mo...@126.com> Folgendes geschrieben:
> Debugging in assembly exposes indirection through a null pointer in > `mingw-w64-crt/stdio/mingw_wvfscanf.c` around or after line 906: > > ``` > optimize_alloc ((flags & IS_ALLOC_USED) != 0, pstr, str_sz, (wstr - > (wchar_t *) *pstr), sizeof (wchar_t));` > ``` pstr==NULL, so the *pstr part crashes. > The CRT libraries of those toolchains were not compiled with debug > information. Further investigation might not be possible. > > I am not able to reproducible this problem on master. You might want to > try a newer version and see if the problem still exists. It doesn't look fixed on master, mingw_wvfscanf.c is the same in v5.x and master. But as far as I can tell this was fixed in mingw_vfscanf in here: https://sourceforge.net/p/mingw-w64/mailman/message/27912175/ https://sourceforge.net/p/mingw-w64/mingw-w64/ci/72d60c1a06490ec5937e6c620956b167bf0bf329/ There is even the suggestion that mingw_wvfscanf.c might need a similar fix, which was never done. ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Mingw-w64-public mailing list Mingw-w64-public@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mingw-w64-public
