[heap] Remove max executable size configuration.

src/mips/assembler-mips.cc

Index: src/mips/assembler-mips.cc
diff --git a/src/mips/assembler-mips.cc b/src/mips/assembler-mips.cc
index 8558767d2da774b8d80e4e7eea264f4f79dc6862..3a37c16e5a0efdde2470d7312793b33bd2419a8a 100644
--- a/src/mips/assembler-mips.cc
+++ b/src/mips/assembler-mips.cc
@@ -3549,13 +3549,20 @@ void Assembler::GrowBuffer() {
   if (!own_buffer_) FATAL("external code buffer is too small");
 
   // Compute new buffer size.
-  CodeDesc desc;  // The new buffer.
+  CodeDesc desc;  // the new buffer
   if (buffer_size_ < 1 * MB) {
     desc.buffer_size = 2*buffer_size_;
   } else {
     desc.buffer_size = buffer_size_ + 1*MB;
   }
-  CHECK_GT(desc.buffer_size, 0);  // No overflow.
+
+  // Some internal data structures overflow for very large buffers,
+  // they must ensure that kMaximalBufferSize is not too large.
+  if (desc.buffer_size > kMaximalBufferSize ||
+      static_cast<size_t>(desc.buffer_size) >
+          isolate_data().max_old_generation_size_) {
+    V8::FatalProcessOutOfMemory("Assembler::GrowBuffer");
+  }
 
   // Set up new buffer.
   desc.buffer = NewArray<byte>(desc.buffer_size);