1 // Check that unloading a module doesn't break coverage dumping for remaining 2 // modules. 3 // RUN: %clangxx_asan -mllvm -asan-coverage=1 -DSHARED %s -shared -o %T/libcoverage_module_unloaded_test_1.so -fPIC 4 // RUN: %clangxx_asan -mllvm -asan-coverage=1 -DSHARED %s -shared -o %T/libcoverage_module_unloaded_test_2.so -fPIC 5 // RUN: %clangxx_asan -mllvm -asan-coverage=1 -DSO_DIR=\"%T\" %s -o %t 6 // RUN: export ASAN_OPTIONS=coverage=1:verbosity=1 7 // RUN: mkdir -p %T/coverage-module-unloaded && cd %T/coverage-module-unloaded 8 // RUN: %run %t 2>&1 | FileCheck %s 9 // RUN: %run %t foo 2>&1 | FileCheck %s 10 // RUN: cd .. && rm coverage-module-unloaded -r 11 // 12 // https://code.google.com/p/address-sanitizer/issues/detail?id=263 13 // XFAIL: android 14 15 #include <assert.h> 16 #include <dlfcn.h> 17 #include <stdio.h> 18 #include <unistd.h> 19 20 #ifdef SHARED 21 extern "C" { 22 void bar() { printf("bar\n"); } 23 } 24 #else 25 26 int main(int argc, char **argv) { 27 fprintf(stderr, "PID: %d\n", getpid()); 28 void *handle1 = 29 dlopen(SO_DIR "/libcoverage_module_unloaded_test_1.so", RTLD_LAZY); 30 assert(handle1); 31 void (*bar1)() = (void (*)())dlsym(handle1, "bar"); 32 assert(bar1); 33 bar1(); 34 void *handle2 = 35 dlopen(SO_DIR "/libcoverage_module_unloaded_test_2.so", RTLD_LAZY); 36 assert(handle2); 37 void (*bar2)() = (void (*)())dlsym(handle2, "bar"); 38 assert(bar2); 39 bar2(); 40 41 // It matters whether the unloaded module has a higher or lower address range 42 // than the remaining one. Make sure to test both cases. 43 if (argc < 2) 44 dlclose(bar1 < bar2 ? handle1 : handle2); 45 else 46 dlclose(bar1 < bar2 ? handle2 : handle1); 47 return 0; 48 } 49 #endif 50 51 // CHECK: PID: [[PID:[0-9]+]] 52 // CHECK: [[PID]].sancov: 1 PCs written 53 // CHECK: .so.[[PID]] 54 // If we get coverage for both DSOs, it means the module wasn't unloaded and 55 // this test is useless. 56 // CHECK-NOT: .so.[[PID]] 57
