1 /* Copyright (c) 2014-2019. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
16 #include "mc/datatypes.h"
17 #include "src/mc/mc_private.hpp"
19 #include "src/mc/ObjectInformation.hpp"
20 #include "src/mc/Type.hpp"
21 #include "src/mc/Variable.hpp"
22 #include "src/mc/remote/RemoteClient.hpp"
24 // Test broken with multi-dimensional arrays. See https://sourceware.org/bugzilla/show_bug.cgi?id=22546
25 // int test_some_array[4][5][6];
26 int test_some_array[4 * 5 * 6];
31 some_struct test_some_struct;
33 static simgrid::mc::Type* find_type_by_name(simgrid::mc::ObjectInformation* info, const char* name)
35 for (auto& entry : info->types)
36 if(entry.second.name == name)
41 static simgrid::mc::Frame* find_function_by_name(
42 simgrid::mc::ObjectInformation* info, const char* name)
44 for (auto& entry : info->subprograms)
45 if(entry.second.name == name)
50 static simgrid::mc::Variable* find_local_variable(
51 simgrid::mc::Frame* frame, const char* argument_name)
53 for (simgrid::mc::Variable& variable : frame->variables)
54 if(argument_name == variable.name)
57 for (simgrid::mc::Frame& scope : frame->scopes) {
58 simgrid::mc::Variable* variable = find_local_variable(
59 &scope, argument_name);
67 static void test_local_variable(simgrid::mc::ObjectInformation* info, const char* function, const char* variable, void* address, unw_cursor_t* cursor) {
68 simgrid::mc::Frame* subprogram = find_function_by_name(info, function);
70 // TODO, Lookup frame by IP and test against name instead
72 simgrid::mc::Variable* var = find_local_variable(subprogram, variable);
75 void* frame_base = subprogram->frame_base(*cursor);
76 simgrid::dwarf::Location location = simgrid::dwarf::resolve(
77 var->location_list, info, cursor, frame_base, nullptr, -1);
79 xbt_assert(location.in_memory(), "Expected the variable %s of function %s to be in memory", variable, function);
80 xbt_assert(location.address() == address, "Bad resolution of local variable %s of %s", variable, function);
83 static simgrid::mc::Variable* test_global_variable(simgrid::mc::RemoteClient& process,
84 simgrid::mc::ObjectInformation* info, const char* name,
85 void* address, long byte_size)
87 simgrid::mc::Variable* variable = info->find_variable(name);
88 xbt_assert(variable, "Global variable %s was not found", name);
89 xbt_assert(variable->name == name, "Name mismatch for %s", name);
90 xbt_assert(variable->global, "Variable %s is not global", name);
91 xbt_assert(variable->address == address, "Address mismatch for %s : %p expected but %p found", name, address,
94 auto i = process.binary_info->types.find(variable->type_id);
95 xbt_assert(i != process.binary_info->types.end(), "Missing type for %s", name);
96 simgrid::mc::Type* type = &i->second;
97 xbt_assert(type->byte_size == byte_size, "Byte size mismatch for %s", name);
101 static simgrid::mc::Member* find_member(simgrid::mc::Type& type, const char* name)
103 for (simgrid::mc::Member& member : type.members)
104 if(member.name == name)
109 int some_local_variable = 0;
115 static void test_type_by_name(simgrid::mc::RemoteClient& process, s_foo /*my_foo*/)
117 assert(process.binary_info->full_types_by_name.find("struct s_foo") != process.binary_info->full_types_by_name.end());
120 int main(int argc, char** argv)
122 SIMIX_global_init(&argc, argv);
124 simgrid::mc::Variable* var;
125 simgrid::mc::Type* type;
127 simgrid::mc::RemoteClient process(getpid(), -1);
130 test_global_variable(process, process.binary_info.get(), "some_local_variable", &some_local_variable, sizeof(int));
132 var = test_global_variable(process, process.binary_info.get(), "test_some_array", &test_some_array,
133 sizeof(test_some_array));
134 auto i = process.binary_info->types.find(var->type_id);
135 xbt_assert(i != process.binary_info->types.end(), "Missing type");
137 xbt_assert(type->element_count == 6 * 5 * 4, "element_count mismatch in test_some_array : %i / %i",
138 type->element_count, 6 * 5 * 4);
140 var = test_global_variable(process, process.binary_info.get(), "test_some_struct", &test_some_struct,
141 sizeof(test_some_struct));
142 i = process.binary_info->types.find(var->type_id);
143 xbt_assert(i != process.binary_info->types.end(), "Missing type");
147 assert(find_member(*type, "first")->offset() == 0);
148 assert(find_member(*type, "second")->offset() ==
149 ((const char*)&test_some_struct.second) - (const char*)&test_some_struct);
151 unw_context_t context;
153 unw_getcontext(&context);
154 unw_init_local(&cursor, &context);
156 test_local_variable(process.binary_info.get(), "main", "argc", &argc, &cursor);
158 int lexical_block_variable = 50;
159 test_local_variable(process.binary_info.get(), "main", "lexical_block_variable", &lexical_block_variable, &cursor);
162 test_type_by_name(process, my_foo);