- fixed address delta calculation;
- code creations are also compressed to be in sync with other events;
- factored out a base class from TickProcessor to reuse code in DevTools profiler.

Review URL: http://codereview.chromium.org/125256


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2216 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/126293

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2215 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

the overloaded pow(double, int) function from math.h produces the
wrong answer. 

TBR=whesse@chromium.org
Review URL: http://codereview.chromium.org/131022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2214 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

rather than just 10.5 and up.
1: Set the right compile flags and predefines to get backward compatible Unix
system calls.
2: Explicitly weak import the functions in execinfo.h and check at runtime to
see if that library loaded before calling backtrace(). 

Original change submitted by maf@google.com and reviewed at http://codereview.chromium.org/126241.
Review URL: http://codereview.chromium.org/132002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2213 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

handled by an optimistic inline idiv.
Review URL: http://codereview.chromium.org/125258

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2212 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=kasperl@chromium.org

Review URL: http://codereview.chromium.org/126276

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2210 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=sgjesse@chromium.org
Review URL: http://codereview.chromium.org/125251

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2209 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

of tests that time out.
Review URL: http://codereview.chromium.org/126274

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2207 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Add a missing handle scope when clearing the debug message handler.

BUG=none
TEST=cctest/test-debug/DebuggerUnload 
Review URL: http://codereview.chromium.org/126271

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2206 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TIMEOUT outcome.
Review URL: http://codereview.chromium.org/125248

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2205 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/126198

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2204 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/125185


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2203 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

the stack instead.
Review URL: http://codereview.chromium.org/126268

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2202 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/125245

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2201 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

certain size.
Review URL: http://codereview.chromium.org/126265

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2200 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/125243


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2199 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

out for now.
Review URL: http://codereview.chromium.org/125241

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2197 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

mode and on actual ARM hardware.

TBR=erik.corry@gmail.com
Review URL: http://codereview.chromium.org/125240

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2196 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/126262

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2195 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The main problem was due to the following: after Erik had fixed the logger to report library addresses, tickprocessor started to add to the code map entries that covered almost entire memory. This happened because tickprocessor contains a heuristic to bias addresses of functions from dynamic libraries:

    if (funcInfo.start < libStart && funcInfo.start < libEnd - libStart) {
      funcInfo.start += libStart;
    }

And, as tickprocessor tried to process all symbols from the library, including data entries, which can be outside reported library addresses range, the second condition failed, and funcInfo.start remained unbiased.

Review URL: http://codereview.chromium.org/125192


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2194 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

handling addresses.
Review URL: http://codereview.chromium.org/125187

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2193 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Don't swallow exceptions so we can't see where they are really
thrown.
Review URL: http://codereview.chromium.org/126200

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2192 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

- Added fast case to String.prototype.split (Mads's idea).
- Made minor other optimizations in String.prototype.split.

Review URL: http://codereview.chromium.org/126201

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2191 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

two symbols, they're only equal if the objects are identical.
Review URL: http://codereview.chromium.org/125184

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2188 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

(Android does this).  Fix logging for executable mappings that have no
file associated.  Be more consistent with use of uintptr_t.
Review URL: http://codereview.chromium.org/125183

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2187 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

To profile running the JavaScript file test.js using the V8 release mode shell (assuming it is build passing prof=oprofile to the SCons build). The following commands can be used:

$ tools/oprofile/start
$ tools/oprofile/run test.js
$ tools/oprofile/report | less
$ tools/oprofile/annotate | less
$ tools/oprofile/shutdown

Here is a summary of the commands.

For all the commands taking an executable the executable is expected to be a binary using V8. If no executable is specified the release mode V8 shell is assumed.

By default the --session-dir=/tmp/oprofv8 is passed to all oprofile commands. This walue can be changed by setting environment variable OPROFILE_SESSION_DIR.

When using the defaulf executable (V8 shell in release mode) it is assumed to be located in ../.. relative from the oprofile utility scripts. This default location can be overridden using the V8_SHELL_DIR environment variable.

start
-----
Start the oprofiling daemon.

run [executable] [parameters]
-----------------------------
Profile a V8 executable. Running this will reset oprofile samples, run the command and do an oprofile dump to flush samples and write ELF binaries for the generated code. The parameters are passed to the executable together with the --oprofile option.

report [executable] [parameters]
--------------------------------
Print the report for a profile run. The parameters are passed to opreport. E.g report --callgraph.

annotate [executable] [parameters]
----------------------------------
Print annotated assembly for a profile run. The parameters are passed to opannotate. E.g annotate -threshold 1.

reset
-----
Reset oprofile samples.

dump
----
Flush oprofile samples and write ELF binaries for the generated code.

shutdown
--------
Shutdown oprofile daemon.

Added a warning which is printed if option --oprofile is passed to a V8 which has not been compiled with oprofile support.
Review URL: http://codereview.chromium.org/125181

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2186 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Don't infer name for a function if a result of its call is assigned to a variable / property. E.g., in this case:

  a = function() { ... } ();

the function must remain anonymous because 'a' doesn't receive a function reference, but instead a result of its call.

BUG=http://code.google.com/p/v8/issues/detail?id=380
TEST=cctest/test-func-name-inference/Issue380

Review URL: http://codereview.chromium.org/126195


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2185 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2184 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/126193

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2183 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/126192

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2182 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/125177

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2180 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

when the left operand lets us shortcut the computation.
Review URL: http://codereview.chromium.org/125176

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2179 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/126191

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2178 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/125131

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2177 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/126188

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2176 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/126189

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2175 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Only send the inscructions part of a code object to oprofile when reporting dynamically generated code. Before the code object header was also reported to oprofile as code which caused strange disassembly output when using opannotate.
Review URL: http://codereview.chromium.org/125126

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2174 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=kmillikin@chromium.org
Review URL: http://codereview.chromium.org/125129

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2173 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

It seems that when calling a method that has two overloaded versions like this:
  f(char* format, ...)
  f(char* format, va_list args)
with a second pointer argument: f("format", pointer), the second version is picked up.

I've found a description of a similar issue here: http://bugs.gentoo.org/63112

So, to resolve this ambiguity, I've named such LogMessageBuilder's Append functions differently.

Review URL: http://codereview.chromium.org/125125


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2172 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This fixes assertion failures in debug mode tests.
Review URL: http://codereview.chromium.org/126128

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2171 ce2b1a6d-e550-0410-aec6-3dcde31c8c00