[Isolates] Increase the isolate thread's stack size for tests.

samples/shell.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 91 matching lines @@
       }
     }
   }
 
 #ifdef WIN32
   void StartExecuteInThread() { ExecuteInThread(); }
   void WaitForThread() {}
 
 #else
   void StartExecuteInThread() {
-    pthread_create(&thread_, NULL, &IsolateThreadEntry, this);
+    pthread_attr_t attr;
+    // On some systems (OSX 10.6) the stack size default is 0.5Mb or less
+    // which is not enough to parse the big literal expressions used in tests.
+    // The stack size should be at least StackGuard::kLimitSize + some
+    // OS-specific padding for thread startup code.
+    size_t stacksize = 1024 * 1024; // 1 Mb seems to be enough
+    pthread_attr_init(&attr);
+    pthread_attr_setstacksize (&attr, stacksize);
+    int error = pthread_create(&thread_, &attr, &IsolateThreadEntry, this);
+    if (error) {
+      printf("Error creating isolate thread.\n");
+      exit(1);
+    }
   }
 
   void WaitForThread() {
     if (thread_ == 0) return;
     pthread_join(thread_, NULL);
     thread_ = 0;
   }
 #endif  // WIN32
 
  private:
@@ skipping 285 matching lines @@
       printf("^");
     }
     printf("\n");
     v8::String::Utf8Value stack_trace(try_catch->StackTrace());
     if (stack_trace.length() > 0) {
       const char* stack_trace_string = ToCString(stack_trace);
       printf("%s\n", stack_trace_string);
     }
   }
 }