1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // A crazy linker test to: 6 // - Load a library (libbar.so) with the linker, which depends on 7 // another library (libfoo.so) 8 // - Find the address of the "Bar" function in libbar.so. 9 // - Call the Bar() function, which ends up calling Foo() in libfoo.so 10 // - Close the library. 11 12 #include <stdio.h> 13 #include <crazy_linker.h> 14 15 #include "test_util.h" 16 17 typedef void (*FunctionPtr)(); 18 19 int main() { 20 crazy_context_t* context = crazy_context_create(); 21 crazy_library_t* library; 22 23 // DEBUG 24 crazy_context_set_load_address(context, 0x20000000); 25 26 // Load libbar.so 27 if (!crazy_library_open(&library, "libbar.so", context)) { 28 Panic("Could not open library: %s\n", crazy_context_get_error(context)); 29 } 30 31 // Find the "Bar" symbol. 32 FunctionPtr bar_func; 33 if (!crazy_library_find_symbol( 34 library, "Bar", reinterpret_cast<void**>(&bar_func))) { 35 Panic("Could not find 'Bar' in libbar.so\n"); 36 } 37 38 // Call it. 39 (*bar_func)(); 40 41 // Find the "Foo" symbol from libbar.so 42 FunctionPtr foo_func; 43 if (!crazy_library_find_symbol( 44 library, "Foo", reinterpret_cast<void**>(&foo_func))) { 45 Panic("Could not find 'Foo' from libbar.so\n"); 46 } 47 48 // Close the library. 49 printf("Closing libbar.so\n"); 50 crazy_library_close(library); 51 52 crazy_context_destroy(context); 53 54 return 0; 55 }