262 lines
6.3 KiB
C++
262 lines
6.3 KiB
C++
/*
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* \brief ldso test program
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* \author Sebastian Sumpf
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* \date 2009-11-05
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*/
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/*
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* Copyright (C) 2009-2013 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#include <base/printf.h>
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#include <rom_session/connection.h>
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#include <base/env.h>
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#include <base/shared_object.h>
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using namespace Genode;
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/* shared-lib includes */
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#include "test-ldso.h"
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namespace Libc {
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#include <stdlib.h>
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#include <unistd.h>
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#include <math.h>
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}
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/********************************************************************
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** Helpers to test construction and destruction of global objects **
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********************************************************************/
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struct Global_1
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{
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int x { 0x05060708 };
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Global_1() { printf("%s %x\n", __func__, --x); }
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void global_1() { printf("%s %x\n", __func__, --x); }
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~Global_1() { printf("%s %x\n", __func__, --x); x=0; }
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}
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global_1;
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static struct Global_2
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{
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int x { 0x01020304 };
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Global_2() { printf("%s %x\n", __func__, --x); }
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void global_2() { printf("%s %x\n", __func__, --x); }
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~Global_2() { printf("%s %x\n", __func__, --x); x=0; }
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}
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global_2;
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/**************************************************************************
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** Helpers to test construction and destruction of local static objects **
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**************************************************************************/
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struct Local_1
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{
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int x { 0x50607080 };
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Local_1() { printf("%s %x\n", __func__, --x); }
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void local_1() { printf("%s %x\n", __func__, --x); }
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~Local_1() { printf("%s %x\n", __func__, --x); x=0; }
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};
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struct Local_2
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{
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int x { 0x10203040 };
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Local_2() { printf("%s %x\n", __func__, --x); }
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void local_2() { printf("%s %x\n", __func__, --x); }
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~Local_2() { printf("%s %x\n", __func__, --x); x=0; }
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};
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Local_1 * local_1()
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{
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static Local_1 s;
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return &s;
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}
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static Local_2 * local_2()
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{
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static Local_2 s;
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return &s;
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}
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/************************************************************************
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** Helpers to test function attributes 'constructor' and 'destructor' **
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************************************************************************/
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unsigned pod_1 { 0x80706050 };
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static unsigned pod_2 { 0x40302010 };
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static void attr_constructor_1()__attribute__((constructor));
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void attr_constructor_2()__attribute__((constructor));
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void attr_destructor_1() __attribute__((destructor));
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static void attr_destructor_2() __attribute__((destructor));
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static void attr_constructor_1() { printf("%s %x\n", __func__, --pod_1); }
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void attr_constructor_2() { printf("%s %x\n", __func__, --pod_2); }
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void attr_destructor_1() { printf("%s %x\n", __func__, --pod_1); pod_1=0; }
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static void attr_destructor_2() { printf("%s %x\n", __func__, --pod_2); pod_2=0; }
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/********************************************
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** Helpers to test C++ exception handling **
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********************************************/
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static void exception() { throw 666; }
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extern void __ldso_raise_exception();
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/*************************************
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** Helpers to test stack alignment **
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*************************************/
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static void test_stack_align(char const *fmt, ...) __attribute__((noinline));
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static void test_stack_align(char const *fmt, ...)
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{
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va_list list;
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va_start(list, fmt);
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vprintf(fmt, list);
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va_end(list);
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}
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struct Test_stack_align_thread : Thread<0x2000>
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{
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Test_stack_align_thread() : Thread<0x2000>("test_stack_align") { }
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void entry() { test_stack_align("%f\n%g\n", 3.142, 2.718); }
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};
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/******************
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** Dynamic cast **
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******************/
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struct Object_base
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{
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virtual void func() { printf("'Object_base' called: failed\n"); }
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};
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struct Object : Object_base
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{
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void func() { printf("'Object' called: good\n"); }
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};
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void test_dynamic_cast_call(Object_base *o)
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{
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Object *b = dynamic_cast<Object *>(o);
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b->func();
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}
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static void test_dynamic_cast()
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{
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Object *o = new (Genode::env()->heap()) Object;
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test_dynamic_cast_call(o);
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}
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/***********************
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** Shared-object API **
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***********************/
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static void test_shared_object_api()
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{
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/*
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* When loading the shared object, we expect the global constructor
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* that is present in the library to print a message.
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*
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* 'lib_dl_so' is a local variable such that its destructor is called
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* when leaving the scope of the function.
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*/
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Shared_object lib_dl_so("test-ldso_lib_dl.lib.so");
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}
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/**
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* Main function of LDSO test
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*/
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int main(int argc, char **argv)
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{
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printf("\n");
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printf("Dynamic-linker test\n");
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printf("===================\n");
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printf("\n");
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printf("Global objects and local static objects of program\n");
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printf("--------------------------------------------------\n");
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global_1.global_1();
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global_2.global_2();
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local_1()->local_1();
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local_2()->local_2();
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printf("pod_1 %x\n", --pod_1);
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printf("pod_2 %x\n", --pod_2);
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printf("\n");
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printf("Access shared lib from program\n");
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printf("------------------------------\n");
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lib_2_global.lib_2_global();
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lib_1_local_3()->lib_1_local_3();
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printf("lib_1_pod_1 %x\n", --pod_1);
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int fd = 0;
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char buf[2];
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printf("Libc::read:\n");
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Libc::read(fd, buf, 2);
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int i = Libc::abs(-10);
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printf("Libc::abs(-10): %d\n", i);
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printf("\n");
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printf("Catch exceptions in program\n");
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printf("---------------------------\n");
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printf("exception in remote procedure call:\n");
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try { Rom_connection rom("unknown_file"); }
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catch (Rom_connection::Rom_connection_failed) { printf("caught\n"); }
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printf("exception in program: ");
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try { exception(); }
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catch (int) { printf("caught\n"); }
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printf("exception in shared lib: ");
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try { lib_1_exception(); }
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catch (Rm_session::Region_conflict) { printf("caught\n"); }
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printf("exception in dynamic linker: ");
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try { __ldso_raise_exception(); }
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catch (Genode::Exception) { printf("caught\n"); }
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printf("\n");
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lib_1_test();
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printf("Test stack alignment\n");
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printf("--------------------\n");
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test_stack_align("%f\n%g\n", 3.142, 2.718);
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Test_stack_align_thread t;
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t.start();
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t.join();
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printf("\n");
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printf("Dynamic cast\n");
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printf("------------\n");
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test_dynamic_cast();
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printf("\n");
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printf("Shared-object API\n");
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printf("-----------------\n");
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test_shared_object_api();
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printf("\n");
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printf("Destruction\n");
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printf("-----------\n");
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/* test if return value is propagated correctly by dynamic linker */
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return 123;
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}
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