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| // Checks that dfsan works with trace-cmp instrumentation, even if some hooks
// are not defined (relies on week hooks implemented in dfsan).
//
// RUN: %clang_dfsan -fsanitize-coverage=trace-pc-guard,pc-table,func,trace-cmp %s -o %t
// RUN: %run %t 2>&1 | FileCheck %s
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <sanitizer/dfsan_interface.h>
uint32_t a4, b4;
uint64_t a8, b8;
// Define just two hooks, and leave others undefined.
void __dfsw___sanitizer_cov_trace_const_cmp4(uint8_t a, uint8_t b,
dfsan_label l1, dfsan_label l2) {
printf("const_cmp4 %d %d\n", a, b);
}
void __dfsw___sanitizer_cov_trace_cmp8(uint8_t a, uint8_t b, dfsan_label l1,
dfsan_label l2) {
printf("cmp8 %d %d\n", a, b);
}
int main(int argc, char **argv) {
printf("MAIN\n");
// CHECK: MAIN
if (a4 != b4) abort();
if (a4 == 42) abort();
// CHECK: const_cmp4 42 0
if (a8 != b8) abort();
// CHECK: cmp8 0 0
if (a8 == 66) abort();
switch (10 / (a4 + 2)) {
case 1: abort();
case 2: exit(1);
case 5:
printf("SWITCH OK\n");
break;
}
// CHECK: SWITCH OK
printf("DONE\n");
// CHECK: DONE
return 0;
}
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