When disassembling code (in particular embedded builtins), try to
print better information about root-relative accesses. For example:

 REX.W movq rdx,[r13+0x548]
 REX.W movq rax,[r13+0x10a8]

turns into

 REX.W movq rdx,[r13+0x548] (root (0x1ff420d0ccd9 <FixedArray[1672]>))
 REX.W movq rax,[r13+0x10a8] (external reference (check_object_type))

This is a band-aid solution until we come up with something better. It
does not understand multi-instruction sequences (such as loads from
the builtins constants table), assumes every kRootRegister-relative
access is actually root-relative (i.e. the register is not initialized
to some other value), and is limited to a particular instruction
pattern.

Bug: v8:6666,v8:7969
Change-Id: I35af92e8233c9bb0f2ad6ba0e86bd0ab69177205
Reviewed-on: https://chromium-review.googlesource.com/1146806
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54777}

This ensures that tests actually abort on unimplemented opcodes instead
of just printing them as "Unimplemented Instruction". If used to
disassemble a code region though, we want to ignore unimplemented
opcodes to keep printing remaining valid instructions.

The tests were previously fixed by Deepti in
8fa509d3, but this got partly reverted
on the "Address" refactoring in
2459046c.

R=titzer@chromium.org

Change-Id: I802dda2b0f45ee77c4f9b244ed984b1c4679bac3
Reviewed-on: https://chromium-review.googlesource.com/1146649
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54726}

Currently the disassembler tests continue on unimplemented instructions, fix
to abort instead as most bugs in the disassemblers will appear as unimplemented
instructions.

 - Localize testing disassembler method to abort on unimplemented
 - Fix failing x64 disassembler tests

Change-Id: I703cca9709c528327ec381d05a78cf3314ea4fa9
Reviewed-on: https://chromium-review.googlesource.com/907489Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51162}

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1299563003

Cr-Commit-Position: refs/heads/master@{#30187}

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/259183002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21035 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7271 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7269 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6685088

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7268 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1389 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8939

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@700 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Vector<...> in more places to be sure that buffers have a length
associated with them.

Review URL: http://codereview.chromium.org/1940

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@283 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Added presubmit step to check copyright.



git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@242 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Added a few samples and support for building them. The samples include a simple shell that can be used to benchmark and test V8.

Changed V8::GetVersion to return the version as a string.

Added source for lazily loaded scripts to snapshots and made serialization non-destructive.

Improved ARM support by fixing the write barrier code to use aligned loads and stores and by removing premature locals optimization that relied on broken support for callee-saved registers (removed).

Refactored the code for marking live objects during garbage collection and the code for allocating objects in paged spaces. Introduced an abstraction for the map word of a heap-allocated object and changed the memory allocator to allocate executable memory only for spaces that may contain code objects.

Moved StringBuilder to utils.h and ScopedLock to platform.h, where they can be used by debugging and logging modules. Added thread-safe message queues for dealing with debugger events.

Fixed the source code reported by toString for certain builtin empty functions and made sure that the prototype property of a function is enumerable.

Improved performance of converting values to condition flags in generated code.

Merged disassembler-{arch} files.


git-svn-id: http://v8.googlecode.com/svn/trunk@8 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

git-svn-id: http://v8.googlecode.com/svn/trunk@2 ce2b1a6d-e550-0410-aec6-3dcde31c8c00