void walkstack() {
int ebp = getebp();
int eip;
int rc;
Dl_info info;
while (ebp) {
eip = *((int*)ebp + 1);
rc = dladdr((void*)eip, &info);
if (!rc||(!info.dli_sname && !info.dli_fname)) {
printf("0x%x (unknown)\n", eip);
} else {
if (!info.dli_sname) {
printf("0x%x (%s)\n", eip, info.dli_fname);
} else {
printf("%s+%i (%s)\n",
info.dli_sname,
eip - (int)info.dli_saddr,
info.dli_fname);
}
}
ebp = *((int*)ebp);
}
}
int main()
{
int local = 1;
unsigned long stackBefore = getstack();
unsigned long framePtrBefore = getebp();
try
{
MyClass ins;
foo1();
local = 0;
}
catch(...)
{
// If Pin translated probed code properly, exception will reach the handler
printf("Exception\n");
}
unsigned long stackAfter = getstack();
unsigned long framePtrAfter = getebp();
if ((stackBefore != stackAfter) || (framePtrBefore != framePtrAfter))
{
printf("before try Stack at 0x%x, ebp 0x%x\n", getstack(), getebp());
printf("after catch Stack at 0x%x, ebp 0x%x\n", getstack(), getebp());
return -1;
}
int param1 = 1;
int param2 = param1 * 5;
float param3 = 0.5*1.5;
float expectedResult = 0;
try
{
expectedResult = param3+param2+param1;
foo2();
}
catch(...)
{
float afterCatchResult = param3+param2+param1;
if (afterCatchResult != expectedResult)
{
printf("expectedResult = %f; afterCatchResult = %f\n", expectedResult, afterCatchResult);
printf("Registers may be restored incorrectly in the catch block\n");
return -1;
}
else
{
printf("Try-catch works correctly while exception propagation from dll\n");
}
}
stackAfter = getstack();
framePtrAfter = getebp();
if ((stackBefore != stackAfter) || (framePtrBefore != framePtrAfter))
{
printf("Incorrect stack of frame ptr after exception propagation from dll");
printf("before try Stack at 0x%x, ebp 0x%x\n", getstack(), getebp());
printf("after catch Stack at 0x%x, ebp 0x%x\n", getstack(), getebp());
return -1;
}
// Check that destructor was called and local var value was not changed when exception was handled
if (!destructed || (local != 1))
{
return 1;
}
pBar = bar;
try
{
foo1();
}
catch(...)
{
// No exception expected
printf("Exception\n");
}
return 0;
}
