1 // Copyright 2015 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 #include <stdint.h> 6 #include <stdio.h> 7 #include <dlfcn.h> 8 9 int check_int8(void* handle, const char* fname, int8_t want) { 10 int8_t (*fn)(); 11 fn = (int8_t (*)())dlsym(handle, fname); 12 if (!fn) { 13 fprintf(stderr, "ERROR: missing %s: %s\n", fname, dlerror()); 14 return 1; 15 } 16 signed char ret = fn(); 17 if (ret != want) { 18 fprintf(stderr, "ERROR: %s=%d, want %d\n", fname, ret, want); 19 return 1; 20 } 21 return 0; 22 } 23 24 int check_int32(void* handle, const char* fname, int32_t want) { 25 int32_t (*fn)(); 26 fn = (int32_t (*)())dlsym(handle, fname); 27 if (!fn) { 28 fprintf(stderr, "ERROR: missing %s: %s\n", fname, dlerror()); 29 return 1; 30 } 31 int32_t ret = fn(); 32 if (ret != want) { 33 fprintf(stderr, "ERROR: %s=%d, want %d\n", fname, ret, want); 34 return 1; 35 } 36 return 0; 37 } 38 39 // Tests libgo.so to export the following functions. 40 // int8_t DidInitRun() // returns true 41 // int8_t DidMainRun() // returns true 42 // int32_t FromPkg() // returns 1024 43 int main(int argc, char** argv) { 44 void* handle = dlopen(argv[1], RTLD_LAZY | RTLD_GLOBAL); 45 if (!handle) { 46 fprintf(stderr, "ERROR: failed to open the shared library: %s\n", 47 dlerror()); 48 return 2; 49 } 50 51 int ret = 0; 52 ret = check_int8(handle, "DidInitRun", 1); 53 if (ret != 0) { 54 return ret; 55 } 56 57 ret = check_int8(handle, "DidMainRun", 0); 58 if (ret != 0) { 59 return ret; 60 } 61 62 ret = check_int32(handle, "FromPkg", 1024); 63 if (ret != 0) { 64 return ret; 65 } 66 // test.bash looks for "PASS" to ensure this program has reached the end. 67 printf("PASS\n"); 68 return 0; 69 } 70
