Commit Graph

135 Commits

Author SHA1 Message Date
Zachary Turner 1124045ac7 Don't #include "lldb-python.h" from anywhere.
Since interaction with the python interpreter is moving towards
being more isolated, we won't be able to include this header from
normal files anymore, all includes of it should be localized to
the python library which will live under source/bindings/API/Python
after a future patch.

None of the files that were including this header actually depended
on it anyway, so it was just a dead include in every single instance.

llvm-svn: 238581
2015-05-29 17:41:47 +00:00
Pavel Labath 4446487d71 Improve LLDB prompt handling
Summary:
There is an issue in lldb where the command prompt can appear at the wrong time. The partial fix
we have in for this is not working all the time and is introducing unnecessary delays. This
change does:
- Change Process:SyncIOHandler to use integer start id's for synchronization to avoid it being
  confused by quick start-stop cycles. I picked this up from a suggested patch by Greg to
  lldb-dev.
- coordinates printing of asynchronous text with the iohandlers. This is also based on a
  (different) Greg's patch, but I have added stronger synchronization to it to avoid races.

Together, these changes solve the prompt problem for me on linux (both with and without libedit).
I think they should behave similarly on Mac and FreeBSD and I think they will not make matters
worse for windows.

Test Plan: Prompt comes out alright. All tests still pass on linux.

Reviewers: clayborg, emaste, zturner

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D9823

llvm-svn: 238313
2015-05-27 12:40:32 +00:00
Enrico Granata e87764f247 Add support for custom commands to set flags on themselves
This works for Python commands defined via a class (implement get_flags on your class) and C++ plugin commands (which can call SBCommand::GetFlags()/SetFlags())

Flags allow features such as not letting the command run if there's no target, or if the process is not stopped, ...
Commands could always check for these things themselves, but having these accessible via flags makes custom commands more consistent with built-in ones

llvm-svn: 238286
2015-05-27 05:04:35 +00:00
Pavel Labath b84141a6fe Add real time signals support to LinuxSignals
Summary: This enables correct handling of real time signals by lldb.

Test Plan: Added a test that verifies handling of SIGRTMIN

Reviewers: tberghammer, ovyalov

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D9911

llvm-svn: 238009
2015-05-22 08:46:18 +00:00
Ilia K 8f0db3e1f0 Don't call the Process::SyncIOHandler in Target::Launch
Summary: This patch moves synchronization of iohandler to CommandObjectProcessLaunch::DoExecute like it was done in CommandObjectProcessContinue::DoExecute.

Reviewers: jingham, clayborg

Reviewed By: clayborg

Subscribers: lldb-commits, clayborg, jingham

Differential Revision: http://reviews.llvm.org/D9373

llvm-svn: 236699
2015-05-07 06:26:27 +00:00
Jason Molenda 8980e6bc10 Change process kill to call Process::Destroy (force_kill = true);
follow-up to the change in r235158.  Right now if you attach to 
a process and type "kill", lldb doesn't kill it, it detaches.
<rdar://problem/20691198> 

llvm-svn: 236363
2015-05-01 23:39:48 +00:00
Jason Molenda ede3193bbd Add a "force_kill" arg to Process::Destroy(). This is needed after
the changes in r233255/r233258.  Normally if lldb attaches to
a running process, when we call Process::Destroy, we want to detach
from the process.  If lldb launched the process itself, ::Destroy
should kill it.

However, if we attach to a process and the driver calls SBProcess::Kill()
(which calls Destroy), we need to kill it even if we didn't launch it
originally.

The force_kill param allows for the SBProcess::Kill method to force the
behavior of Destroy.

<rdar://problem/20424439> 

llvm-svn: 235158
2015-04-17 05:01:58 +00:00
Zachary Turner 93749ab3cf Further reduce the header footprint of Process.h
No functional change here, only deletes unnecessary headers
and moves one function's body from the .h file to the .cpp.

llvm-svn: 231145
2015-03-03 21:51:25 +00:00
Ilia K cc39d3f4bd Fix Arg0 argument after r229110. The problem was that Arg0ValueChangedCallback isn't twitching when Arg0 was updated, therefore target was launched with empty 1st argument or without it at all. In this patch I update Arg0 by hand.
llvm-svn: 229125
2015-02-13 17:07:55 +00:00
Ilia K 8f37ca56d6 Add -exec-arguments command
Summary:
This patch adds -exec-arguments command for lldb-mi. -exec-arguments command allows to specify arguments for executable file in MI mode. Also it contains tests for that command.

Btw, new added files was formatted by clang-format.

Reviewers: abidh, zturner, clayborg

Reviewed By: clayborg

Subscribers: zturner, emaste, clayborg, jingham, lldb-commits

Differential Revision: http://reviews.llvm.org/D6965

llvm-svn: 229110
2015-02-13 14:31:06 +00:00
Oleksiy Vyalov 37386143b8 Extract attach core logic from SBTarget::Attach* methods into unified SBTarget::AttachToProcess and make it work with platform for remote attach purposes.
http://reviews.llvm.org/D7471

llvm-svn: 228757
2015-02-10 22:49:57 +00:00
Oleksiy Vyalov 926af0cdcb Make "process attach" command to support attaching to remote process in case if selected platform allows this.
http://reviews.llvm.org/D7358

llvm-svn: 227899
2015-02-03 00:04:35 +00:00
Vince Harron 5275aaa0cc Moved Args::StringToXIntYZ to StringConvert::ToXIntYZ
The refactor was motivated by some comments that Greg made
http://reviews.llvm.org/D6918

and also to break a dependency cascade that caused functions linking
in string->int conversion functions to pull in most of lldb

llvm-svn: 226199
2015-01-15 20:08:35 +00:00
Stephane Sezer f2ef94e770 Make the platform process connect path less chatty.
Summary:
If a stream contains an empty string, no need to append it to the output
(otherwise we end up with a blank line). Also, no need to print a status
message when the state changes to connected, as this string brings no
information -- "Process 0" does not mean anything to the user, and the
process being connected has no meaning either.

Test Plan:
Connect to a remote linux platform mode daemon with `platform select
remote-linux` followed by `platform connect ...`, create a target and
run it, observe the output. Also, run the full test suite (dosep.py).

Before:
    (lldb) [...] connect, etc.
    (lldb) r
    Process 0 connected

    Process 5635 launched: '/Users/sas/Source/test' (x86_64)
    Process 5635 stopped

After:
    (lldb) [...] connect, etc.
    (lldb) r
    Process 5635 launched: '/Users/sas/Source/test' (x86_64)
    Process 5635 stopped

Reviewers: tfiala, vharron, clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D6593

llvm-svn: 224188
2014-12-13 05:23:51 +00:00
Greg Clayton 8012cadbf3 Fixed more fallout from running the test suite remotely on iOS devices.
Fixed include:
- Change Platform::ResolveExecutable(...) to take a ModuleSpec instead of a FileSpec + ArchSpec to help resolve executables correctly when we have just a path + UUID (no arch).
- Add the ability to set the listener in SBLaunchInfo and SBAttachInfo in case you don't want to use the debugger as the default listener. 
- Modified all places that use the SBLaunchInfo/SBAttachInfo and the internal ProcessLaunchInfo/ProcessAttachInfo to not take a listener as a parameter since it is in the launch/attach info now
- Load a module's sections by default when removing a module from a target. Since we create JIT modules for expressions and helper functions, we could end up with stale data in the section load list if a module was removed from the target as the section load list would still have entries for the unloaded module. Target now has the following functions to help unload all sections a single or multiple modules:

    size_t
    Target::UnloadModuleSections (const ModuleList &module_list);

    size_t
    Target::UnloadModuleSections (const lldb::ModuleSP &module_sp);

llvm-svn: 222167
2014-11-17 19:39:20 +00:00
Greg Clayton dc6224e0a3 Make the "synchronous" mode actually work without race conditions.
There were many issues with synchronous mode that we discovered when started to try and add a "batch" mode. There was a race condition where the event handling thread might consume events when in sync mode and other times the Process::WaitForProcessToStop() would consume them. This also led to places where the Process IO handler might or might not get popped when it needed to be.

llvm-svn: 220254
2014-10-21 01:00:42 +00:00
Todd Fiala 5163792b7b Adjust process launch --disable-aslr to take true/false value.
This change modifies the 'process launch' --disable-aslr option to take a boolean argument.  If the user directly specifies --disable-aslr {true,false}, that setting will control whether the process is launched with ASLR disabled accordingly.  In the event that the setting is not explicitly made on the process launch command line, then the value is retrieved from the target.disable-aslr setting (i.e. settings show target.disable-aslr).

llvm-svn: 215996
2014-08-19 17:40:43 +00:00
Todd Fiala a3b89e272c Fix iohandler prompt race condition.
This issue caused the lldb prompt to not show up in certain cases, very
noticeable on Linux systems.

See details on this review:
http://reviews.llvm.org/D4863

And on this lldb-commits thread:
http://lists.cs.uiuc.edu/pipermail/lldb-commits/Week-of-Mon-20140811/012306.html

Change by Shawn Best.

(Much useful help and testing by the rest of the community, thanks all!)

llvm-svn: 215446
2014-08-12 14:33:19 +00:00
Greg Clayton 06357c930c (no commit message)
llvm-svn: 214319
2014-07-30 17:38:47 +00:00
Zachary Turner d37221dc5d Revert "Fix broken tests due to new error output."
This reverts commit ec7c94f8e6860968d384b578e5564a9c55c80b4a and
re-enables OptionValidators.

llvm-svn: 212627
2014-07-09 16:31:49 +00:00
Todd Fiala 9734280f33 Fix broken tests due to new error output.
This reverses out the options validators changes.  We'll get these
back in once the changes to the output can be resolved.

Restores broken tests on FreeBSD, Linux, MacOSX.

Changes reverted: r212500, r212317, r212290.

llvm-svn: 212543
2014-07-08 15:55:32 +00:00
Zachary Turner de963e9a09 Adds the notion of an OptionValidator.
The purpose of the OptionValidator is to determine, based on some
arbitrary set of conditions, whether or not a command option is
valid for a given debugger state.  An example of this might be
to selectively disable or enable certain command options that
don't apply to a particular platform.

This patch contains no functional change, and does not actually
make use of an OptionValidator for any purpose yet.  A follow-up
patch will begin to add the logic and users of OptionValidator.

Reviewed by: Greg Clayton, Jim Ingham

Differential Revision: http://reviews.llvm.org/D4369

llvm-svn: 212290
2014-07-03 20:34:18 +00:00
Jim Ingham 106d02866d Added an option to turn OFF the "detach on error" behavior that was added
to debugserver when launching processes.

<rdar://problem/16216199>

llvm-svn: 211658
2014-06-25 02:32:56 +00:00
Greg Clayton a2715cf108 Added the ability to save core files:
(lldb) file /bin/ls
(lldb) b malloc
(lldb) run
(lldb) process save-core /tmp/ls.core

Each ObjectFile plug-in now has the option to save core files by registering a new static callback.

llvm-svn: 210864
2014-06-13 00:54:12 +00:00
Jim Ingham 6c9ed91cca Make the fail messages
llvm-svn: 205497
2014-04-03 01:26:14 +00:00
Greg Clayton e556a4230c Stop messages from being emitted out of order when detaching.
llvm-svn: 202756
2014-03-03 20:29:02 +00:00
Greg Clayton 44d937820b Merging the iohandler branch back into main.
The many many benefits include:
1 - Input/Output/Error streams are now handled as real streams not a push style input
2 - auto completion in python embedded interpreter
3 - multi-line input for "script" and "expression" commands now allow you to edit previous/next lines using up and down arrow keys and this makes multi-line input actually a viable thing to use
4 - it is now possible to use curses to drive LLDB (please try the "gui" command)

We will need to deal with and fix any buildbot failures and tests and arise now that input/output and error are correctly hooked up in all cases.

llvm-svn: 200263
2014-01-27 23:43:24 +00:00
Greg Clayton b09c5384b0 Centralized the launching of a process into Target::Launch()
While investigating test suite failures when running the test suite remotely, I noticed we had 3 copies of code that launched a process:
1 - in "process launch" command 
2 - SBTarget::Launch() with args
3 - SBTarget::Launch() with SBLaunchInfo

"process launch" was launching through the platform if it was supported (this is needed for remote debugging) and the 2 and 3 were not.

Now all code is in one place.

llvm-svn: 197247
2013-12-13 17:20:18 +00:00
Greg Clayton 8c8018d36f Only use a PTY master/slave when launching for local processes.
llvm-svn: 195483
2013-11-22 18:47:24 +00:00
Daniel Malea 9e9919f043 Allow Process::WaitForProcessToStop to return immediately if process is already in the stopped state
- By default, the above function will wait for at least one event
- Set wait_always=false to make the function return immediately if the process is already stopped

llvm-svn: 192301
2013-10-09 16:56:28 +00:00
Virgile Bello e2607b50ea Add OptionParser.h
llvm-svn: 190063
2013-09-05 16:42:23 +00:00
Greg Clayton f9b57b9d77 <rdar://problem/13700260>
Avoid a deadlock when using the OperatingSystemPython code and typing "process interrupt". There was a possible lock inversion between the target API lock and the process' thread list lock due to code trying to discard the thread list. This was fixed by adding a boolean to Process::Halt() that indicates if the thread plans should be discarded and doing it in the private state thread when we process the stopped state.

llvm-svn: 181651
2013-05-10 23:48:10 +00:00
Jim Ingham acff895015 Recommitting r180831 with trivial fix - remember to return errors if you compute.
llvm-svn: 180898
2013-05-02 00:27:30 +00:00
Daniel Malea 54e39db805 Reverting 180831 as it crashes TestDefaultConstructorForAPIObjects.py
llvm-svn: 180868
2013-05-01 19:11:56 +00:00
Jim Ingham a23f73dbbc Added an option to "process detach" to keep the process stopped, if the process plugin (or in the
case of ProcessGDBRemote the stub we are talking to) know how to do that.

rdar://problem/13680832

llvm-svn: 180831
2013-04-30 23:46:08 +00:00
Jim Ingham dcb1d856d7 “process launch” should “detach” not “kill” if the current process was one we attached to.
“process attach” should ask the same questions as process launch if there is a current process.
“process connect” then “process launch” or “process attach” should actually work.

<rdar://problem/13524210>
<rdar://problem/13524208>
<rdar://problem/13488919>

llvm-svn: 178324
2013-03-29 00:56:30 +00:00
Jim Ingham 0161b49cba Reworked the way Process::RunThreadPlan and the ThreadPlanCallFunction interoperate to fix problems where
hitting auto-continue signals while running a thread plan would cause us to lose control of the debug 
session.

<rdar://problem/12993641>

llvm-svn: 174793
2013-02-09 01:29:05 +00:00
Greg Clayton c7bece56fa <rdar://problem/13069948>
Major fixed to allow reading files that are over 4GB. The main problems were that the DataExtractor was using 32 bit offsets as a data cursor, and since we mmap all of our object files we could run into cases where if we had a very large core file that was over 4GB, we were running into the 4GB boundary.

So I defined a new "lldb::offset_t" which should be used for all file offsets.

After making this change, I enabled warnings for data loss and for enexpected implicit conversions temporarily and found a ton of things that I fixed.

Any functions that take an index internally, should use "size_t" for any indexes and also should return "size_t" for any sizes of collections.

llvm-svn: 173463
2013-01-25 18:06:21 +00:00
Greg Clayton e05b2efe27 Fixed an issue the "process plugin" proxy object was trying to use the m_exe_ctx when it wasn't ok to do so.
llvm-svn: 172014
2013-01-09 22:58:18 +00:00
Greg Clayton f9fc609fe7 Expanded the flags that can be set for a command object in lldb_private::CommandObject. This list of available flags are:
enum
{
    //----------------------------------------------------------------------
    // eFlagRequiresTarget
    //
    // Ensures a valid target is contained in m_exe_ctx prior to executing
    // the command. If a target doesn't exist or is invalid, the command
    // will fail and CommandObject::GetInvalidTargetDescription() will be
    // returned as the error. CommandObject subclasses can override the
    // virtual function for GetInvalidTargetDescription() to provide custom
    // strings when needed.
    //----------------------------------------------------------------------
    eFlagRequiresTarget         = (1u << 0),
    //----------------------------------------------------------------------
    // eFlagRequiresProcess
    //
    // Ensures a valid process is contained in m_exe_ctx prior to executing
    // the command. If a process doesn't exist or is invalid, the command
    // will fail and CommandObject::GetInvalidProcessDescription() will be
    // returned as the error. CommandObject subclasses can override the
    // virtual function for GetInvalidProcessDescription() to provide custom
    // strings when needed.
    //----------------------------------------------------------------------
    eFlagRequiresProcess        = (1u << 1),
    //----------------------------------------------------------------------
    // eFlagRequiresThread
    //
    // Ensures a valid thread is contained in m_exe_ctx prior to executing
    // the command. If a thread doesn't exist or is invalid, the command
    // will fail and CommandObject::GetInvalidThreadDescription() will be
    // returned as the error. CommandObject subclasses can override the
    // virtual function for GetInvalidThreadDescription() to provide custom
    // strings when needed.
    //----------------------------------------------------------------------
    eFlagRequiresThread         = (1u << 2),
    //----------------------------------------------------------------------
    // eFlagRequiresFrame
    //
    // Ensures a valid frame is contained in m_exe_ctx prior to executing
    // the command. If a frame doesn't exist or is invalid, the command
    // will fail and CommandObject::GetInvalidFrameDescription() will be
    // returned as the error. CommandObject subclasses can override the
    // virtual function for GetInvalidFrameDescription() to provide custom
    // strings when needed.
    //----------------------------------------------------------------------
    eFlagRequiresFrame          = (1u << 3),
    //----------------------------------------------------------------------
    // eFlagRequiresRegContext
    //
    // Ensures a valid register context (from the selected frame if there
    // is a frame in m_exe_ctx, or from the selected thread from m_exe_ctx)
    // is availble from m_exe_ctx prior to executing the command. If a
    // target doesn't exist or is invalid, the command will fail and
    // CommandObject::GetInvalidRegContextDescription() will be returned as
    // the error. CommandObject subclasses can override the virtual function
    // for GetInvalidRegContextDescription() to provide custom strings when
    // needed.
    //----------------------------------------------------------------------
    eFlagRequiresRegContext     = (1u << 4),
    //----------------------------------------------------------------------
    // eFlagTryTargetAPILock
    //
    // Attempts to acquire the target lock if a target is selected in the
    // command interpreter. If the command object fails to acquire the API
    // lock, the command will fail with an appropriate error message.
    //----------------------------------------------------------------------
    eFlagTryTargetAPILock       = (1u << 5),
    //----------------------------------------------------------------------
    // eFlagProcessMustBeLaunched
    //
    // Verifies that there is a launched process in m_exe_ctx, if there
    // isn't, the command will fail with an appropriate error message.
    //----------------------------------------------------------------------
    eFlagProcessMustBeLaunched  = (1u << 6),
    //----------------------------------------------------------------------
    // eFlagProcessMustBePaused
    //
    // Verifies that there is a paused process in m_exe_ctx, if there
    // isn't, the command will fail with an appropriate error message.
    //----------------------------------------------------------------------
    eFlagProcessMustBePaused    = (1u << 7)
};

Now each command object contains a "ExecutionContext m_exe_ctx;" member variable that gets initialized prior to running the command. The validity of the target objects in m_exe_ctx are checked to ensure that any target/process/thread/frame/reg context that are required are valid prior to executing the command. Each command object also contains a Mutex::Locker m_api_locker which gets used if eFlagTryTargetAPILock is set. This centralizes a lot of checking code that was previously and inconsistently implemented across many commands.

llvm-svn: 171990
2013-01-09 19:44:40 +00:00
Daniel Malea f00b751175 Fix typo in error message (print requested URL instead of command name when plugin missing)
llvm-svn: 170447
2012-12-18 20:00:40 +00:00
Sean Callanan bf4b7be68e Removed the == and != operators from ArchSpec, since
equality can be strict or loose and we want code to
explicitly choose one or the other.

Also renamed the Compare function to IsEqualTo, to
avoid confusion.

<rdar://problem/12856749>

llvm-svn: 170152
2012-12-13 22:07:14 +00:00
Daniel Malea 93a64300f8 Fix Linux build warnings due to redefinition of macros:
- add new header lldb-python.h to be included before other system headers
- short term fix (eventually python dependencies must be cleaned up)

Patch by Matt Kopec!

llvm-svn: 169341
2012-12-05 00:20:57 +00:00
Greg Clayton 3bcdfc0ec1 <rdar://problem/12798131>
Cleaned up the option parsing code to always pass around the short options as integers. Previously we cast this down to "char" and lost some information. I recently added an assert that would detect duplicate short character options which was firing during the test suite.

This fix does the following:
- make sure all short options are treated as "int"
- make sure that short options can be non-printable values when a short option is not required or when an option group is mixed into many commands and a short option is not desired
- fix the help printing to "do the right thing" in all cases. Previously if there were duplicate short character options, it would just not emit help for the duplicates
- fix option parsing when there are duplicates to parse options correctly. Previously the option parsing, when done for an OptionGroup, would just start parsing options incorrectly by omitting table entries and it would end up setting the wrong option value

llvm-svn: 169189
2012-12-04 00:32:51 +00:00
Daniel Malea d01b2953fa Resolve printf formatting warnings on Linux:
- use macros from inttypes.h for format strings instead of OS-specific types

Patch from Matt Kopec!

llvm-svn: 168945
2012-11-29 21:49:15 +00:00
Sean Callanan 3154255fd6 This is a fix for the command option parser.
There was a generic catch-all type for path arguments
called "eArgTypePath," and a specialized version
called "eArgTypeFilename."  It turns out all the
cases where we used eArgTypePath we could have
used Filename or we explicitly meant a directory.

I changed Path to DirectoryName, made it use the
directory completer, and rationalized the uses of
Path.

<rdar://problem/12559915>

llvm-svn: 166533
2012-10-24 01:12:14 +00:00
Greg Clayton a0ca6601bc <rdar://problem/12462048>
<rdar://problem/12068650>

More fixes to how we handle paths that are used to create a target.

This modification centralizes the location where and how what the user specifies gets resolved. Prior to this fix, the TargetList::CreateTarget variants took a FileSpec object which meant everyone had the opportunity to resolve the path their own way. Now both CreateTarget variants take a "const char *use_exe_path" which allows the TargetList::CreateTarget to centralize where the resolving happens and "do the right thing".

llvm-svn: 166186
2012-10-18 16:33:33 +00:00
Greg Clayton 453925530d <rdar://problem/12462048>
LLDB changes argv[0] when debugging a symlink. Now we have the notion of argv0 in the target settings:

target.arg0 (string) = 

There is also the program argument that are separate from the first argument that have existed for a while:

target.run-args (arguments) =

When running "target create <exe>", we will place the untouched "<exe>" into target.arg0 to ensure when we run, we run with what the user typed. This has been added to the ProcessLaunchInfo and all other needed places so we always carry around the:
- resolved executable path
- argv0
- program args

Some systems may not support separating argv0 from the resolved executable path and the ProcessLaunchInfo needs to carry all of this information along so that each platform can make that decision.

llvm-svn: 166137
2012-10-17 22:57:12 +00:00
Greg Clayton 998255bfe8 <rdar://problem/12491387>
I added the ability for a process plug-in to implement custom commands. All the lldb_private::Process plug-in has to do is override:

virtual CommandObject *
GetPluginCommandObject();

This object returned should be a multi-word command that vends LLDB commands. There is a sample implementation in ProcessGDBRemote that is hollowed out. It is intended to be used for sending a custom packet, though the body of the command execute function has yet to be implemented! 

llvm-svn: 165861
2012-10-13 02:07:45 +00:00
Jason Molenda 4bd4e7e3ba Add support for debugging KASLR kernels via kdp (the kernel being
loaded at a random offset).

To get the kernel's UUID and load address I need to send a kdp
packet so I had to implement the kernel relocation (and attempt to
find the kernel if none was provided to lldb already) in ProcessKDP
-- but this code really properly belongs in DynamicLoaderDarwinKernel.

I also had to add an optional Stream to ConnectRemote so
ProcessKDP::DoConnectRemote can print feedback about the remote kernel's
UUID, load address, and notify the user if we auto-loaded the kernel via
the UUID.

<rdar://problem/7714201>

llvm-svn: 164881
2012-09-29 04:02:01 +00:00