X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/3dea830fcf83870034f5542b0007d2799ad9e697..78ad8111935dd39520e2cbae135e042817d78583:/teshsuite/mc/dwarf_expression/dwarf_expression.cpp

diff --git a/teshsuite/mc/dwarf_expression/dwarf_expression.cpp b/teshsuite/mc/dwarf_expression/dwarf_expression.cpp
new file mode 100644
index 0000000000..fc7ab69c7b
--- /dev/null
+++ b/teshsuite/mc/dwarf_expression/dwarf_expression.cpp
@@ -0,0 +1,153 @@
+/* Copyright (c) 2014. The SimGrid Team.
+ * All rights reserved.                                                     */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
+#ifdef NDEBUG
+#undef NDEBUG
+#endif
+
+#include <string.h>
+#include <assert.h>
+#include <stdlib.h>
+
+#include "../src/mc/mc_private.h"
+#include "../src/mc/mc_object_info.h"
+
+static mc_process_t process;
+
+static
+uintptr_t eval_binary_operation(mc_expression_state_t state, int op, uintptr_t a, uintptr_t b) {
+  state->stack_size = 0;
+
+  Dwarf_Op ops[15];
+  ops[0].atom = DW_OP_const8u;
+  ops[0].number = a;
+  ops[1].atom = DW_OP_const8u;
+  ops[1].number = b;
+  ops[2].atom = op;
+
+  assert(mc_dwarf_execute_expression(3, ops, state) == MC_EXPRESSION_OK);
+  assert(state->stack_size==1);
+  return state->stack[state->stack_size - 1];
+}
+
+static
+void basic_test(mc_expression_state_t state) {
+  Dwarf_Op ops[60];
+
+  uintptr_t a = rand();
+  uintptr_t b = rand();
+
+  ops[0].atom = DW_OP_drop;
+  assert(mc_dwarf_execute_expression(1, ops, state) == MC_EXPRESSION_E_STACK_UNDERFLOW);
+
+  ops[0].atom = DW_OP_lit21;
+  assert(mc_dwarf_execute_expression(1, ops, state) == MC_EXPRESSION_OK);
+  assert(state->stack_size==1);
+  assert(state->stack[state->stack_size-1]==21);
+
+  ops[0].atom = DW_OP_const8u;
+  ops[0].number = a;
+  assert(mc_dwarf_execute_expression(1, ops, state) == MC_EXPRESSION_OK);
+  assert(state->stack_size==2);
+  assert(state->stack[state->stack_size-1] == a);
+
+  ops[0].atom = DW_OP_drop;
+  ops[1].atom = DW_OP_drop;
+  assert(mc_dwarf_execute_expression(2, ops, state) == MC_EXPRESSION_OK);
+  assert(state->stack_size==0);
+
+  ops[0].atom = DW_OP_lit21;
+  ops[1].atom = DW_OP_plus_uconst;
+  ops[1].number = a;
+  assert(mc_dwarf_execute_expression(2, ops, state) == MC_EXPRESSION_OK);
+  assert(state->stack_size==1);
+  assert(state->stack[state->stack_size-1]== a + 21);
+
+  state->stack_size = 0;
+  ops[0].atom = DW_OP_const8u;
+  ops[0].number = a;
+  ops[1].atom = DW_OP_dup;
+  ops[2].atom = DW_OP_plus;
+  assert(mc_dwarf_execute_expression(3, ops, state) == MC_EXPRESSION_OK);
+  assert(state->stack_size==1);
+  assert(state->stack[state->stack_size-1]== a + a);
+
+  state->stack_size = 0;
+  ops[0].atom = DW_OP_const8u;
+  ops[0].number = a;
+  ops[1].atom = DW_OP_const8u;
+  ops[1].number = b;
+  ops[2].atom = DW_OP_over;
+  assert(mc_dwarf_execute_expression(3, ops, state) == MC_EXPRESSION_OK);
+  assert(state->stack_size==3);
+  assert(state->stack[state->stack_size-1]== a);
+  assert(state->stack[state->stack_size-2]== b);
+  assert(state->stack[state->stack_size-3]== a);
+
+  state->stack_size = 0;
+  ops[0].atom = DW_OP_const8u;
+  ops[0].number = a;
+  ops[1].atom = DW_OP_const8u;
+  ops[1].number = b;
+  ops[2].atom = DW_OP_swap;
+  assert(mc_dwarf_execute_expression(3, ops, state) == MC_EXPRESSION_OK);
+  assert(state->stack_size=2);
+  assert(state->stack[state->stack_size-1]== a);
+  assert(state->stack[state->stack_size-2]== b);
+}
+
+static
+void test_deref(mc_expression_state_t state) {
+  uintptr_t foo = 42;
+
+  Dwarf_Op ops[60];
+  ops[0].atom = DW_OP_const8u;
+  ops[0].number = (uintptr_t) &foo;
+  ops[1].atom = DW_OP_deref;
+  state->stack_size = 0;
+
+  assert(mc_dwarf_execute_expression(2, ops, state) == MC_EXPRESSION_OK);
+  assert(state->stack_size==1);
+  assert(state->stack[state->stack_size-1] == foo);
+}
+
+int main(int argc, char** argv) {
+  process = new simgrid::mc::Process(getpid(), -1);
+
+  s_mc_expression_state_t state;
+  memset(&state, 0, sizeof(s_mc_expression_state_t));
+  state.address_space = (mc_address_space_t) process;
+
+  basic_test(&state);
+
+  for(int i=0; i!=100; ++i) {
+    uintptr_t a = rand();
+    uintptr_t b = rand();
+    assert(eval_binary_operation(&state, DW_OP_plus, a, b) == (a + b));
+  }
+
+  for(int i=0; i!=100; ++i) {
+    uintptr_t a = rand();
+    uintptr_t b = rand();
+    assert(eval_binary_operation(&state, DW_OP_or, a, b) == (a | b));
+  }
+
+  for(int i=0; i!=100; ++i) {
+    uintptr_t a = rand();
+    uintptr_t b = rand();
+    assert(eval_binary_operation(&state, DW_OP_and, a, b) == (a & b));
+  }
+
+  for(int i=0; i!=100; ++i) {
+    uintptr_t a = rand();
+    uintptr_t b = rand();
+    assert(eval_binary_operation(&state, DW_OP_xor, a, b) == (a ^ b));
+  }
+
+  test_deref(&state);
+
+  return 0;
+}