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.
49 lines
1.2 KiB
49 lines
1.2 KiB
// Build a library with origin tracking and an executable w/o origin tracking.
|
|
// Test that origin tracking is enabled at runtime.
|
|
// RUN: %clangxx_msan -fsanitize-memory-track-origins -O0 %s -DBUILD_SO -fPIC -shared -o %t-so.so
|
|
// RUN: %clangxx_msan -O0 %s %t-so.so -o %t && not %run %t 2>&1 | FileCheck %s
|
|
|
|
#ifdef BUILD_SO
|
|
|
|
#include <stdlib.h>
|
|
|
|
extern "C" {
|
|
void my_access(int *p) {
|
|
volatile int tmp;
|
|
// Force initialize-ness check.
|
|
if (*p)
|
|
tmp = 1;
|
|
}
|
|
|
|
void *my_alloc(unsigned sz) {
|
|
return malloc(sz);
|
|
}
|
|
} // extern "C"
|
|
|
|
#else // BUILD_SO
|
|
|
|
#include <stdlib.h>
|
|
|
|
extern "C" {
|
|
void my_access(int *p);
|
|
void *my_alloc(unsigned sz);
|
|
}
|
|
|
|
int main(int argc, char **argv) {
|
|
int *x = (int *)my_alloc(sizeof(int));
|
|
my_access(x);
|
|
delete x;
|
|
|
|
// CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value
|
|
// CHECK: {{#0 0x.* in my_access .*dso-origin.cc:}}
|
|
// CHECK: {{#1 0x.* in main .*dso-origin.cc:}}[[@LINE-5]]
|
|
// CHECK: Uninitialized value was created by a heap allocation
|
|
// CHECK: {{#0 0x.* in .*malloc}}
|
|
// CHECK: {{#1 0x.* in my_alloc .*dso-origin.cc:}}
|
|
// CHECK: {{#2 0x.* in main .*dso-origin.cc:}}[[@LINE-10]]
|
|
// CHECK: SUMMARY: MemorySanitizer: use-of-uninitialized-value {{.*dso-origin.cc:.* my_access}}
|
|
return 0;
|
|
}
|
|
|
|
#endif // BUILD_SO
|