You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
48 lines
1.3 KiB
48 lines
1.3 KiB
4 months ago
|
// RUN: %clang_dfsan %s -o %t && %run %t
|
||
|
|
// RUN: %clang_dfsan -mllvm -dfsan-args-abi %s -o %t && %run %t
|
||
|
|
|
||
|
|
// Tests that labels are propagated through computation and that union labels
|
||
|
|
// are properly created.
|
||
|
|
|
||
|
|
#include <sanitizer/dfsan_interface.h>
|
||
|
|
#include <assert.h>
|
||
|
|
|
||
|
|
int main(void) {
|
||
|
|
assert(dfsan_union(0, 0) == 0);
|
||
|
|
|
||
|
|
int i = 1;
|
||
|
|
dfsan_label i_label = dfsan_create_label("i", 0);
|
||
|
|
dfsan_set_label(i_label, &i, sizeof(i));
|
||
|
|
|
||
|
|
int j = 2;
|
||
|
|
dfsan_label j_label = dfsan_create_label("j", 0);
|
||
|
|
dfsan_set_label(j_label, &j, sizeof(j));
|
||
|
|
|
||
|
|
int k = 3;
|
||
|
|
dfsan_label k_label = dfsan_create_label("k", 0);
|
||
|
|
dfsan_set_label(k_label, &k, sizeof(k));
|
||
|
|
|
||
|
|
int k2 = 4;
|
||
|
|
dfsan_set_label(k_label, &k2, sizeof(k2));
|
||
|
|
|
||
|
|
dfsan_label ij_label = dfsan_get_label(i + j);
|
||
|
|
assert(dfsan_has_label(ij_label, i_label));
|
||
|
|
assert(dfsan_has_label(ij_label, j_label));
|
||
|
|
assert(!dfsan_has_label(ij_label, k_label));
|
||
|
|
// Test uniquing.
|
||
|
|
assert(dfsan_union(i_label, j_label) == ij_label);
|
||
|
|
assert(dfsan_union(j_label, i_label) == ij_label);
|
||
|
|
|
||
|
|
dfsan_label ijk_label = dfsan_get_label(i + j + k);
|
||
|
|
assert(dfsan_has_label(ijk_label, i_label));
|
||
|
|
assert(dfsan_has_label(ijk_label, j_label));
|
||
|
|
assert(dfsan_has_label(ijk_label, k_label));
|
||
|
|
|
||
|
|
assert(dfsan_get_label(k + k2) == k_label);
|
||
|
|
|
||
|
|
struct { int i, j; } s = { i, j };
|
||
|
|
assert(dfsan_read_label(&s, sizeof(s)) == ij_label);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|