1 // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s 2 #include "java.h" 3 4 int const kHeapSize = 1024 * 1024; 5 6 static void verify_find(jptr from, jptr to, jptr expected_addr, 7 jptr expected_size) { 8 jptr addr = from; 9 jptr size = __tsan_java_find(&addr, to); 10 if (expected_size) { 11 if (!size) { 12 fprintf(stderr, "FAILED: range: [%p..%p): found nothing\n", (void *)from, 13 (void *)to); 14 return; 15 } else if (expected_size != size) { 16 fprintf(stderr, "FAILED: range: [%p..%p): wrong size, %lu instead of %lu\n", 17 (void *)from, (void *)to, size, expected_size); 18 return; 19 } 20 } else if (size) { 21 fprintf(stderr, 22 "FAILED: range [%p..%p): did not expect to find anything here\n", 23 (void *)from, (void *)to); 24 return; 25 } else { 26 return; 27 } 28 if (expected_addr != addr) { 29 fprintf( 30 stderr, 31 "FAILED: range [%p..%p): expected to find object at %p, found at %p\n", 32 (void *)from, (void *)to, (void *)expected_addr, (void *)addr); 33 } 34 } 35 36 int main() { 37 const jptr jheap = (jptr)malloc(kHeapSize + 8) + 8; 38 const jptr jheap_end = jheap + kHeapSize; 39 __tsan_java_init(jheap, kHeapSize); 40 const jptr addr1 = jheap; 41 const int size1 = 16; 42 __tsan_java_alloc(jheap, size1); 43 44 const jptr addr2 = addr1 + size1; 45 const int size2 = 32; 46 __tsan_java_alloc(jheap + size1, size2); 47 48 const jptr addr3 = addr2 + size2; 49 const int size3 = 1024; 50 __tsan_java_alloc(jheap + size1 + size2, size3); 51 52 const jptr addr4 = addr3 + size3; 53 54 verify_find(jheap, jheap_end, addr1, size1); 55 verify_find(jheap + 8, jheap_end, addr2, size2); 56 verify_find(addr2 + 8, jheap_end, addr3, size3); 57 verify_find(addr3 + 8, jheap_end, 0, 0); 58 59 __tsan_java_move(addr2, addr4, size2); 60 verify_find(jheap + 8, jheap_end, addr3, size3); 61 verify_find(addr3 + 8, jheap_end, addr4, size2); 62 verify_find(addr4 + 8, jheap_end, 0, 0); 63 64 fprintf(stderr, "DONE\n"); 65 return 0; 66 } 67 68 // CHECK-NOT: FAILED 69 // CHECK: DONE 70