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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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8
third_party/chibicc/as.c vendored
View file

@ -1255,7 +1255,7 @@ static void EmitData(struct As *a, const void *p, uint128_t n) {
struct Slice *s;
s = &a->sections.p[a->section].binary;
s->p = realloc(s->p, s->n + n);
memcpy(s->p + s->n, p, n);
if (n) memcpy(s->p + s->n, p, n);
s->n += n;
}
@ -3910,8 +3910,10 @@ static void Objectify(struct As *a, int path) {
Fail(a, "unsupported relocation type");
}
}
memcpy(elfwriter_reserve(elf, a->sections.p[i].binary.n),
a->sections.p[i].binary.p, a->sections.p[i].binary.n);
if (a->sections.p[i].binary.n) {
memcpy(elfwriter_reserve(elf, a->sections.p[i].binary.n),
a->sections.p[i].binary.p, a->sections.p[i].binary.n);
}
elfwriter_commit(elf, a->sections.p[i].binary.n);
elfwriter_finishsection(elf);
}