Sounds like a great idea, Zac. Is its use documented someplace?
On Monday, February 22, 2016 at 9:13:47 PM UTC+2, Zac Hansen wrote:
>
> It's much easier doing your testing work with the libv8_nosnapshot library
> instead. That way you never have to worry about it. Startup overhead is
> like.. fractions of a second worse - you'd have to run thousands of times
> for it to be worse than forgetting to update your blob files once.
>
>
>
> On Thursday, February 18, 2016 at 5:33:51 AM UTC-8, Danny Dorfman wrote:
>>
>> I found out the nature of the problem. I forgot to exchange the
>> *_blob.bin files with those of the "debug" version.
>>
>> Sorry for your trouble ...
>>
>> On Thursday, February 18, 2016 at 11:06:47 AM UTC+2, Danny Dorfman wrote:
>>>
>>> v8-version.h shows:
>>>
>>> #define V8_MAJOR_VERSION 4
>>> #define V8_MINOR_VERSION 9
>>> #define V8_BUILD_NUMBER 385
>>> #define V8_PATCH_LEVEL 18
>>>
>>> hello-world.cc was built like this:
>>> # g++ -I/usr hello-world.cc -o hello-world -Wl,--start-group
>>> /usr/lib64/{libv8_libbase.a,libv8_libplatform.a} -Wl,--end-group -lv8 -lrt
>>> -ldl -pthread -std=c++11
>>>
>>>
>>> On Thursday, February 18, 2016 at 10:57:25 AM UTC+2, Jochen Eisinger
>>> wrote:
>>>>
>>>> What exact version of v8 did you use, and how did you compile hello
>>>> world?
>>>>
>>>> When I build with make library=shared x64.debug, executing hello_world
>>>> works fine for me.
>>>>
>>>> best
>>>> -jochen
>>>>
>>>> On Wed, Feb 17, 2016 at 3:25 PM Danny Dorfman <[email protected]>
>>>> wrote:
>>>>
>>>>> Hello there,
>>>>>
>>>>> I successfully made an installation of the V8 4.9 stable version and
>>>>> I am having trouble with the hello-world program.
>>>>> If I compile and link it against the "release" dynamic library,
>>>>> everything works fine. But if I switch to "debug", I get the following
>>>>> crash:
>>>>>
>>>>> # gdb hello-world
>>>>> GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-80.el7
>>>>> Copyright (C) 2013 Free Software Foundation, Inc.
>>>>> License GPLv3+: GNU GPL version 3 or later <
>>>>> http://gnu.org/licenses/gpl.html>
>>>>> This is free software: you are free to change and redistribute it.
>>>>> There is NO WARRANTY, to the extent permitted by law. Type "show
>>>>> copying"
>>>>> and "show warranty" for details.
>>>>> This GDB was configured as "x86_64-redhat-linux-gnu".
>>>>> For bug reporting instructions, please see:
>>>>> <http://www.gnu.org/software/gdb/bugs/>...
>>>>> Reading symbols from /root/v8/samples/hello-world...done.
>>>>> (gdb) run
>>>>> Starting program: /root/v8/samples/hello-world
>>>>> [Thread debugging using libthread_db enabled]
>>>>> Using host libthread_db library "/usr/lib64/libthread_db.so.1".
>>>>> [New Thread 0x7ffff52ec700 (LWP 31545)]
>>>>> [New Thread 0x7ffff4aeb700 (LWP 31546)]
>>>>> [New Thread 0x7ffff42ea700 (LWP 31547)]
>>>>> [New Thread 0x7ffff3ae9700 (LWP 31548)]
>>>>>
>>>>> Program received signal SIGSEGV, Segmentation fault.
>>>>> v8::internal::Map::instance_type (this=0x3f5c00000000) at
>>>>> .././src/objects-inl.h:4424
>>>>> 4424 return static_cast<InstanceType>(READ_BYTE_FIELD(this,
>>>>> kInstanceTypeOffset));
>>>>> Missing separate debuginfos, use: debuginfo-install
>>>>> glibc-2.17-106.el7_2.1.x86_64 libgcc-4.8.5-4.el7.x86_64
>>>>> libstdc++-4.8.5-4.el7.x86_64
>>>>> (gdb) bt
>>>>>
>>>>> #0 v8::internal::Map::instance_type (this=0x1d2400000000) at
>>>>> .././src/objects-inl.h:4424
>>>>> #1 0x00007ffff6f5a7e6 in v8::internal::Object::IsWeakCell
>>>>> (this=0x19f6746c5851) at .././src/objects-inl.h:844
>>>>> #2 0x00007ffff73af45b in v8::internal::WeakFixedArray::Get
>>>>> (this=0x19f67467c7b9, index=78) at .././src/objects-inl.h:2466
>>>>> #3 0x00007ffff75d8480 in v8::internal::WeakFixedArray::Remove
>>>>> (this=0x19f67467c7b9, value=...) at ../src/objects.cc:10706
>>>>> #4 0x00007ffff75e3741 in v8::internal::SharedFunctionInfo::SetScript
>>>>> (shared=..., script_object=...) at ../src/objects.cc:13581
>>>>> #5 0x00007ffff7295d10 in
>>>>> v8::internal::Compiler::GetSharedFunctionInfo (literal=0x687548,
>>>>> script=..., outer_info=0x7fffffffbed8) at ../src/compiler.cc:1676
>>>>> #6 0x00007ffff7448cc7 in
>>>>> v8::internal::FullCodeGenerator::VisitFunctionLiteral
>>>>> (this=0x7fffffffbb48,
>>>>> expr=0x687548) at ../src/full-codegen/full-codegen.cc:1295
>>>>> #7 0x00007ffff6f89501 in v8::internal::FunctionLiteral::Accept
>>>>> (this=0x687548, v=0x7fffffffbb48) at ../src/ast/ast.cc:28
>>>>> #8 0x00007ffff74448cf in v8::internal::FullCodeGenerator::Visit
>>>>> (this=0x7fffffffbb48, node=0x687548) at
>>>>> .././src/full-codegen/full-codegen.h:961
>>>>> #9 0x00007ffff7445174 in
>>>>> v8::internal::FullCodeGenerator::VisitForAccumulatorValue
>>>>> (this=0x7fffffffbb48, expr=0x687548) at
>>>>> .././src/full-codegen/full-codegen.h:364
>>>>> #10 0x00007ffff7904384 in
>>>>> v8::internal::FullCodeGenerator::VisitFunctionDeclaration
>>>>> (this=0x7fffffffbb48, declaration=0x687640) at
>>>>> ../src/full-codegen/x64/full-codegen-x64.cc:837
>>>>> #11 0x00007ffff6f8910e in v8::internal::FunctionDeclaration::Accept
>>>>> (this=0x687640, v=0x7fffffffbb48) at ../src/ast/ast.cc:28
>>>>> #12 0x00007ffff74448cf in v8::internal::FullCodeGenerator::Visit
>>>>> (this=0x7fffffffbb48, node=0x687640) at
>>>>> .././src/full-codegen/full-codegen.h:961
>>>>> #13 0x00007ffff6f8d87a in v8::internal::AstVisitor::VisitDeclarations
>>>>> (this=0x7fffffffbb48, declarations=0x674d40) at ../src/ast/ast.cc:775
>>>>> #14 0x00007ffff74445e1 in
>>>>> v8::internal::FullCodeGenerator::VisitDeclarations (this=0x7fffffffbb48,
>>>>> declarations=0x674d40) at ../src/full-codegen/full-codegen.cc:381
>>>>> #15 0x00007ffff79016c6 in v8::internal::FullCodeGenerator::Generate
>>>>> (this=0x7fffffffbb48) at ../src/full-codegen/x64/full-codegen-x64.cc:319
>>>>> #16 0x00007ffff7441e5b in v8::internal::FullCodeGenerator::MakeCode
>>>>> (info=0x7fffffffbed8) at ../src/full-codegen/full-codegen.cc:49
>>>>> #17 0x00007ffff72960ae in v8::internal::GenerateBaselineCode
>>>>> (info=0x7fffffffbed8) at ../src/compiler.cc:812
>>>>> #18 0x00007ffff72959f9 in
>>>>> v8::internal::Compiler::GetSharedFunctionInfo (literal=0x68b290,
>>>>> script=..., outer_info=0x7fffffffd2d0) at ../src/compiler.cc:1651
>>>>> #19 0x00007ffff7448cc7 in
>>>>> v8::internal::FullCodeGenerator::VisitFunctionLiteral
>>>>> (this=0x7fffffffcdb8,
>>>>> expr=0x68b290) at ../src/full-codegen/full-codegen.cc:1295
>>>>> #20 0x00007ffff6f89501 in v8::internal::FunctionLiteral::Accept
>>>>> (this=0x68b290, v=0x7fffffffcdb8) at ../src/ast/ast.cc:28
>>>>> #21 0x00007ffff74448cf in v8::internal::FullCodeGenerator::Visit
>>>>> (this=0x7fffffffcdb8, node=0x68b290) at
>>>>> .././src/full-codegen/full-codegen.h:961
>>>>> #22 0x00007ffff7445174 in
>>>>> v8::internal::FullCodeGenerator::VisitForAccumulatorValue
>>>>> (this=0x7fffffffcdb8, expr=0x68b290) at
>>>>> .././src/full-codegen/full-codegen.h:364
>>>>> #23 0x00007ffff790b828 in
>>>>> v8::internal::FullCodeGenerator::VisitAssignment (this=0x7fffffffcdb8,
>>>>> expr=0x68b4b0) at ../src/full-codegen/x64/full-codegen-x64.cc:1824
>>>>> #24 0x00007ffff6f896b1 in v8::internal::Assignment::Accept
>>>>> (this=0x68b4b0, v=0x7fffffffcdb8) at ../src/ast/ast.cc:28
>>>>> #25 0x00007ffff74448cf in v8::internal::FullCodeGenerator::Visit
>>>>> (this=0x7fffffffcdb8, node=0x68b4b0) at
>>>>> .././src/full-codegen/full-codegen.h:961
>>>>> #26 0x00007ffff7446444 in
>>>>> v8::internal::FullCodeGenerator::VisitForEffect (this=0x7fffffffcdb8,
>>>>> expr=0x68b4b0) at .././src/full-codegen/full-codegen.h:358
>>>>> #27 0x00007ffff7446aa1 in
>>>>> v8::internal::FullCodeGenerator::VisitExpressionStatement
>>>>> (this=0x7fffffffcdb8, stmt=0x68b350) at
>>>>> ../src/full-codegen/full-codegen.cc:809
>>>>> #28 0x00007ffff6f891ce in v8::internal::ExpressionStatement::Accept
>>>>> (this=0x68b350, v=0x7fffffffcdb8) at ../src/ast/ast.cc:28
>>>>> #29 0x00007ffff74448cf in v8::internal::FullCodeGenerator::Visit
>>>>> (this=0x7fffffffcdb8, node=0x68b350) at
>>>>> .././src/full-codegen/full-codegen.h:961
>>>>> #30 0x00007ffff6f8d901 in v8::internal::AstVisitor::VisitStatements
>>>>> (this=0x7fffffffcdb8, statements=0x674c28) at ../src/ast/ast.cc:783
>>>>> #31 0x00007ffff7901907 in v8::internal::FullCodeGenerator::Generate
>>>>> (this=0x7fffffffcdb8) at ../src/full-codegen/x64/full-codegen-x64.cc:338
>>>>> #32 0x00007ffff7441e5b in v8::internal::FullCodeGenerator::MakeCode
>>>>> (info=0x7fffffffd2d0) at ../src/full-codegen/full-codegen.cc:49
>>>>> #33 0x00007ffff72960ae in v8::internal::GenerateBaselineCode
>>>>> (info=0x7fffffffd2d0) at ../src/compiler.cc:812
>>>>> #34 0x00007ffff729e1ad in v8::internal::CompileBaselineCode
>>>>> (info=0x7fffffffd2d0) at ../src/compiler.cc:819
>>>>> #35 0x00007ffff729421f in v8::internal::CompileToplevel
>>>>> (info=0x7fffffffd2d0) at ../src/compiler.cc:1305
>>>>> #36 0x00007ffff72950c4 in v8::internal::Compiler::CompileScript
>>>>> (source=..., script_name=..., line_offset=0, column_offset=0,
>>>>> resource_options=..., source_map_url=..., context=...,
>>>>> extension=0x0, cached_data=0x0,
>>>>> compile_options=v8::ScriptCompiler::kNoCompileOptions,
>>>>> natives=v8::internal::NATIVES_CODE, is_module=false) at
>>>>> ../src/compiler.cc:1531
>>>>> #37 0x00007ffff6fc7af1 in v8::internal::Bootstrapper::CompileNative
>>>>> (isolate=0x62acd0, name=..., source=..., argc=2, argv=0x7fffffffd800) at
>>>>> ../src/bootstrapper.cc:1871
>>>>> #38 0x00007ffff6fc7e1c in
>>>>> v8::internal::Bootstrapper::CompileExperimentalBuiltin (isolate=0x62acd0,
>>>>> index=0) at ../src/bootstrapper.cc:1820
>>>>> #39 0x00007ffff6fd23a0 in
>>>>> v8::internal::Genesis::InstallExperimentalNatives (this=0x7fffffffde80)
>>>>> at
>>>>> ../src/bootstrapper.cc:2864
>>>>> #40 0x00007ffff6fd5403 in v8::internal::Genesis::Genesis
>>>>> (this=0x7fffffffde80, isolate=0x62acd0, maybe_global_proxy=...,
>>>>> global_proxy_template=..., extensions=0x7fffffffe060,
>>>>> context_type=v8::internal::FULL_CONTEXT) at
>>>>> ../src/bootstrapper.cc:3466
>>>>> #41 0x00007ffff6fba474 in
>>>>> v8::internal::Bootstrapper::CreateEnvironment (this=0x6420b0,
>>>>> maybe_global_proxy=..., global_proxy_template=...,
>>>>> extensions=0x7fffffffe060,
>>>>> context_type=v8::internal::FULL_CONTEXT) at
>>>>> ../src/bootstrapper.cc:327
>>>>> #42 0x00007ffff6f3401f in v8::CreateEnvironment (isolate=0x62acd0,
>>>>> extensions=0x7fffffffe060, global_template=..., maybe_global_proxy=...)
>>>>> at
>>>>> ../src/api.cc:5490
>>>>> #43 0x00007ffff6f0e3e9 in v8::Context::New (external_isolate=0x62acd0,
>>>>> extensions=0x7fffffffe060, global_template=..., global_object=...) at
>>>>> ../src/api.cc:5518
>>>>> #44 0x0000000000408d00 in main ()
>>>>>
>>>>> Any idea what's happening here? How do I fix this?
>>>>>
>>>>> Regards,
>>>>> Danny
>>>>>
>>>>> --
>>>>> --
>>>>> v8-users mailing list
>>>>> [email protected]
>>>>> http://groups.google.com/group/v8-users
>>>>> ---
>>>>> You received this message because you are subscribed to the Google
>>>>> Groups "v8-users" group.
>>>>> To unsubscribe from this group and stop receiving emails from it, send
>>>>> an email to [email protected].
>>>>> For more options, visit https://groups.google.com/d/optout.
>>>>>
>>>>
--
--
v8-users mailing list
[email protected]
http://groups.google.com/group/v8-users
---
You received this message because you are subscribed to the Google Groups
"v8-users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/d/optout.
