1// RUN: %clangxx_asan -O0 -DSHARED_LIB %s -fPIC -shared -o %t-so.so 2// RUN: %clangxx_asan -O0 %s %libdl -o %t && not %run %t 2>&1 | FileCheck %s 3// RUN: %clangxx_asan -O1 -DSHARED_LIB %s -fPIC -shared -o %t-so.so 4// RUN: %clangxx_asan -O1 %s %libdl -o %t && not %run %t 2>&1 | FileCheck %s 5// RUN: %clangxx_asan -O2 -DSHARED_LIB %s -fPIC -shared -o %t-so.so 6// RUN: %clangxx_asan -O2 %s %libdl -o %t && not %run %t 2>&1 | FileCheck %s 7// RUN: %clangxx_asan -O3 -DSHARED_LIB %s -fPIC -shared -o %t-so.so 8// RUN: %clangxx_asan -O3 %s %libdl -o %t && not %run %t 2>&1 | FileCheck %s 9// XFAIL: arm-linux-gnueabi 10 11#if !defined(SHARED_LIB) 12#include <dlfcn.h> 13#include <stdio.h> 14#include <string.h> 15 16#include <string> 17 18using std::string; 19 20typedef void (fun_t)(int x); 21 22int main(int argc, char *argv[]) { 23 string path = string(argv[0]) + "-so.so"; 24 printf("opening %s ... \n", path.c_str()); 25 void *lib = dlopen(path.c_str(), RTLD_NOW); 26 if (!lib) { 27 printf("error in dlopen(): %s\n", dlerror()); 28 return 1; 29 } 30 fun_t *inc = (fun_t*)dlsym(lib, "inc"); 31 if (!inc) return 1; 32 printf("ok\n"); 33 inc(1); 34 inc(-1); // BOOM 35 // CHECK: {{.*ERROR: AddressSanitizer: global-buffer-overflow}} 36 // CHECK: {{READ of size 4 at 0x.* thread T0}} 37 // CHECK: {{ #0 0x.*}} 38 // CHECK: {{ #1 0x.* in main .*shared-lib-test.cc:}}[[@LINE-4]] 39 return 0; 40} 41#else // SHARED_LIB 42#include <stdio.h> 43#include <string.h> 44 45int pad[10]; 46int GLOB[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 47 48extern "C" 49void inc(int index) { 50 GLOB[index]++; 51} 52 53extern "C" 54void inc2(int *a, int index) { 55 a[index]++; 56} 57#endif // SHARED_LIB 58