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Restart CI for New Technology and UBSAN hunting

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Continuous Integration (via runit and runitd) is now re-enabled on win7
and win10. The `make test` command, which runs the tests on all systems
is now the fastest and most stable it's been since the project started.

UBSAN is now enabled in MODE=dbg in addition to ASAN. Many instances of
undefined behavior have been removed. Mostly things like passing a NULL
argument to memcpy(), which works fine with Cosmopolitan Libc, but that
doesn't prevents the compiler from being unhappy. There was an issue w/
GNU make where static analysis claims a sprintf() call can overflow. We
also now have nicer looking crash reports on Windows since uname should
now be supported and msys64 addr2line works reliably.
This commit is contained in:
Justine Tunney 2022-03-21 03:46:16 -07:00
parent d5ff2c3fb9
commit 5e8ae2d5bc
80 changed files with 506 additions and 249 deletions
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6
libc/stdio/appendd.c
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@ -59,7 +59,11 @@ ssize_t appendd(char **b, const void *s, size_t l) {
return -1;
}
}
*(char *)mempcpy(p + z.i, s, l) = 0;
if (l) {
*(char *)mempcpy(p + z.i, s, l) = 0;
} else {
p[z.i] = 0;
}
z.i += l;
if (!IsTiny() && W == 8) z.i |= (size_t)APPEND_COOKIE << 48;
*(size_t *)(p + z.n - W) = z.i;