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-Original Message-
From: jing...@apple.com [mailto:jing...@apple.com]
Sent: Wednesday, November 04, 2015 10:38 AM
To: Mark Chandler
Cc: Greg Clayton ; lldb-dev@lists.llvm.org
Subject: Re: [lldb-dev] Attaching to a stopped (cored) process hangs lldb-s
rd Entertainment
> (P) 949-955-1380 x15353
>
> -Original Message-
> From: Greg Clayton [mailto:gclay...@apple.com]
> Sent: Wednesday, November 04, 2015 10:13 AM
> To: Mark Chandler
> Cc: Todd Fiala ; Pavel Labath ;
> lldb-dev@lists.llvm.org
> Subject: Re: [
...@apple.com]
Sent: Wednesday, November 04, 2015 10:13 AM
To: Mark Chandler
Cc: Todd Fiala ; Pavel Labath ;
lldb-dev@lists.llvm.org
Subject: Re: [lldb-dev] Attaching to a stopped (cored) process hangs lldb-server
So the entire core file is in memory somehow and when it is read from STDIN
will be
353
>
> -Original Message-
> From: Greg Clayton [mailto:gclay...@apple.com]
> Sent: Wednesday, November 04, 2015 10:01 AM
> To: Todd Fiala
> Cc: Mark Chandler ; Pavel Labath ;
> lldb-dev@lists.llvm.org
> Subject: Re: [lldb-dev] Attaching to a stopped (cored) process
-
From: Greg Clayton [mailto:gclay...@apple.com]
Sent: Wednesday, November 04, 2015 10:01 AM
To: Todd Fiala
Cc: Mark Chandler ; Pavel Labath ;
lldb-dev@lists.llvm.org
Subject: Re: [lldb-dev] Attaching to a stopped (cored) process hangs lldb-server
> On Nov 4, 2015, at 9:47 AM, Todd Fi
> On Nov 4, 2015, at 9:47 AM, Todd Fiala wrote:
>
> Although doing any kind of waitpid() in the case of a core file doesn't make
> sense.
The process is still around. The process is being handed the core file via
STDIN, but the process is still around and this tool is attaching to that
proce
in this?
>> >
>> > Greg
>> >
>> >> On Nov 3, 2015, at 4:41 PM, Mark Chandler
>> wrote:
>> >>
>> >> The biggest tell is that the process state is already 'S' or stopped.
>> I don’t know lldb at all to make a change to fix t
]
> Sent: Tuesday, November 03, 2015 5:41 PM
> To: Greg Clayton
> Cc: Mark Chandler ; lldb-dev@lists.llvm.org
> Subject: Re: [lldb-dev] Attaching to a stopped (cored) process hangs
> lldb-server
>
> I'm following this discussion, but I don't yet understand what is
[mailto:lab...@google.com]
Sent: Tuesday, November 03, 2015 5:41 PM
To: Greg Clayton
Cc: Mark Chandler ; lldb-dev@lists.llvm.org
Subject: Re: [lldb-dev] Attaching to a stopped (cored) process hangs lldb-server
I'm following this discussion, but I don't yet understand what is goi
---Original Message-----
>> From: Greg Clayton [mailto:gclay...@apple.com]
>> Sent: Tuesday, November 03, 2015 4:39 PM
>> To: Mark Chandler
>> Cc: lldb-dev@lists.llvm.org
>> Subject: Re: [lldb-dev] Attaching to a stopped (cored) process hangs
>> lldb-server
>
y...@apple.com]
> Sent: Tuesday, November 03, 2015 4:39 PM
> To: Mark Chandler mailto:mchand...@blizzard.com>>
> Cc: lldb-dev@lists.llvm.org<mailto:lldb-dev@lists.llvm.org>
> Subject: Re: [lldb-dev] Attaching to a stopped (cored) process hangs
> lldb-server
>
> Makes s
Mark Chandler
>> Battle.Net Engineering Systems | Blizzard Entertainment
>> (P) 949-955-1380 x15353
>>
>> -Original Message-
>> From: Greg Clayton [mailto:gclay...@apple.com]
>> Sent: Tuesday, November 03, 2015 4:34 PM
>> To: Mark Chandler
>> Cc:
ilto:gclay...@apple.com]
Sent: Tuesday, November 03, 2015 4:39 PM
To: Mark Chandler
Cc: lldb-dev@lists.llvm.org
Subject: Re: [lldb-dev] Attaching to a stopped (cored) process hangs lldb-server
Makes sense about not writing the core file to disk.
Is there a way you can detect this "core" mode
Sent: Tuesday, November 03, 2015 4:34 PM
> To: Mark Chandler
> Cc: lldb-dev@lists.llvm.org
> Subject: Re: [lldb-dev] Attaching to a stopped (cored) process hangs
> lldb-server
>
> One different approach is to have your tool write all STDIN to a file (the
> core file comes in
So you would save the file, create a target:
const char *core_path = ...; // Save STDIN to a file and put path in
"core_path"
const bool source_init_files = false;
debugger = lldb::SBDebugger::Create(source_init_files);
target = debugger.CreateTarget(None);
process = target.LoadCore(core_path);
: lldb-dev@lists.llvm.org
Subject: Re: [lldb-dev] Attaching to a stopped (cored) process hangs lldb-server
One different approach is to have your tool write all STDIN to a file (the core
file comes into the tool as STDIN bytes) and then hand LLDB the core file and
do any needed backtracing and data
One different approach is to have your tool write all STDIN to a file (the core
file comes into the tool as STDIN bytes) and then hand LLDB the core file and
do any needed backtracing and data gathering from the core file instead of
actually attaching to the process for real. All executable and
So im trying to write a core handler program and use lldb to attach and dump
important information about it. This works if a use my tool to attach to an
existing one but I found that lldb-server will hang in a waitpid call if the
kernel has invoked the tool after another process has cored.
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