// RUN: %clang_dfsan -gmlt -DOFFSET=0 -mllvm -dfsan-track-origins=1 %s -o %t && \ // RUN: %run %t >%t.out 2>&1 // RUN: FileCheck %s --check-prefix=CHECK0 < %t.out // // RUN: %clang_dfsan -gmlt -DOFFSET=10 -mllvm -dfsan-track-origins=1 %s -o %t && \ // RUN: %run %t >%t.out 2>&1 // RUN: FileCheck %s --check-prefix=CHECK10 < %t.out #include #include int xx[10000]; volatile int idx = 30; __attribute__((noinline)) void fn_g(int a, int b) { memset(&xx[idx], a, sizeof(a)); memset(&xx[idx + 10], b, sizeof(b)); } __attribute__((noinline)) void fn_f(int a, int b) { fn_g(a, b); } int main(int argc, char *argv[]) { int volatile z1; int volatile z2; dfsan_set_label(8, (void *)&z1, sizeof(z1)); dfsan_set_label(16, (void *)&z2, sizeof(z2)); fn_f(z1, z2); dfsan_print_origin_trace(&xx[idx + OFFSET], NULL); return 0; } // CHECK0: Taint value 0x8 {{.*}} origin tracking () // CHECK0: Origin value: {{.*}}, Taint value was created at // CHECK0: #0 {{.*}} in main {{.*}}origin_memset.c:[[@LINE-10]] // CHECK10: Taint value 0x10 {{.*}} origin tracking () // CHECK10: Origin value: {{.*}}, Taint value was created at // CHECK10: #0 {{.*}} in main {{.*}}origin_memset.c:[[@LINE-14]]