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Fix stack abuse in llama.cc

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This change also incorporates improvements for MODE=asan. It's been
confirmed that o/asan/third_party/ggml/llama.com will work.

Fixes #829
This commit is contained in:
Justine Tunney 2023-06-08 06:44:54 -07:00
parent 32682f0ce7
commit 4d629fd424
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GPG key ID: BE714B4575D6E328
12 changed files with 73 additions and 76 deletions
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10
libc/str/strcasecmp.c
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@ -34,13 +34,11 @@ noasan int strcasecmp(const char *a, const char *b) {
size_t i = 0;
uint64_t v, w, d;
if (a == b) return 0;
if (IsAsan()) __asan_verify_str(a);
if (IsAsan()) __asan_verify_str(b);
if (((uintptr_t)a & 7) == ((uintptr_t)b & 7)) {
for (; (uintptr_t)(a + i) & 7; ++i) {
CheckEm:
if (IsAsan()) {
__asan_verify(a, i + 1);
__asan_verify(b, i + 1);
}
if ((x = kToLower[a[i] & 255]) != (y = kToLower[b[i] & 255]) || !y) {
return x - y;
}
@ -56,10 +54,6 @@ noasan int strcasecmp(const char *a, const char *b) {
}
} else {
while ((x = kToLower[a[i] & 255]) == (y = kToLower[b[i] & 255]) && y) ++i;
if (IsAsan()) {
__asan_verify(a, i + 1);
__asan_verify(b, i + 1);
}
return x - y;
}
}