CPU profiler: increase the max number of captured frames.

test/cctest/test-log-stack-tracer.cc

 // Copyright 2011 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 154 matching lines @@
   //   JSTrace() [JS]
   //     JSFuncDoTrace() [JS] [captures EBP value and encodes it as Smi]
   //       trace(EBP) [native (extension)]
   //         DoTrace(EBP) [native]
   //           TickSample::Trace
 
   CHECK(sample.has_external_callback);
   CHECK_EQ(FUNCTION_ADDR(i::TraceExtension::Trace), sample.external_callback);
 
   // Stack tracing will start from the first JS function, i.e. "JSFuncDoTrace"
-  int base = 0;
+  unsigned base = 0;
   CHECK_GT(sample.frames_count, base + 1);
 
   CHECK(IsAddressWithinFuncCode(
       context, "JSFuncDoTrace", sample.stack[base + 0]));
   CHECK(IsAddressWithinFuncCode(context, "JSTrace", sample.stack[base + 1]));
 }
 
 
 // This test verifies that stack tracing works when called during
 // execution of JS code. However, as calling TickSample::Trace requires
@@ skipping 32 matching lines @@
   //       JSFuncDoTrace() [JS]
   //         js_trace(EBP) [native (extension)]
   //           DoTraceHideCEntryFPAddress(EBP) [native]
   //             TickSample::Trace
   //
 
   CHECK(sample.has_external_callback);
   CHECK_EQ(FUNCTION_ADDR(i::TraceExtension::JSTrace), sample.external_callback);
 
   // Stack sampling will start from the caller of JSFuncDoTrace, i.e. "JSTrace"
-  int base = 0;
+  unsigned base = 0;
   CHECK_GT(sample.frames_count, base + 1);
   CHECK(IsAddressWithinFuncCode(context, "JSTrace", sample.stack[base + 0]));
   CHECK(IsAddressWithinFuncCode(
       context, "OuterJSTrace", sample.stack[base + 1]));
 }
 
 
 static void CFuncDoTrace(byte dummy_parameter) {
   Address fp;
 #ifdef __GNUC__
@@ skipping 38 matching lines @@
   v8::Local<v8::Context> context = CcTest::NewContext(TRACE_EXTENSION);
   v8::Context::Scope context_scope(context);
   CHECK_EQ(0, i::TraceExtension::GetJsEntrySp());
   CompileRun("a = 1; b = a + 1;");
   CHECK_EQ(0, i::TraceExtension::GetJsEntrySp());
   CompileRun("js_entry_sp();");
   CHECK_EQ(0, i::TraceExtension::GetJsEntrySp());
   CompileRun("js_entry_sp_level2();");
   CHECK_EQ(0, i::TraceExtension::GetJsEntrySp());
 }