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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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2
libc/stdio/fread.c
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@ -53,7 +53,7 @@ size_t fread(void *buf, size_t stride, size_t count, FILE *f) {
p = buf;
n = stride * count;
m = f->end - f->beg;
memcpy(p, f->buf + f->beg, MIN(n, m));
if (MIN(n, m)) memcpy(p, f->buf + f->beg, MIN(n, m));
if (n < m) {
f->beg += n;
return count;