Commit Graph

171 Commits

Author SHA1 Message Date
Enrico Granata 972be53f02 Provide CreateValueFromData,Expression at the SBTarget level as well as the SBValue level; and also make all the implenentations agree on using the matching ValueObject::Create instead of doing code copypastas
llvm-svn: 224460
2014-12-17 21:18:43 +00:00
Sean Callanan 9998acd004 This is the meat of the code to add Clang modules
support to LLDB.  It includes the following:

- Changed DeclVendor to TypeVendor.
- Made the ObjCLanguageRuntime provide a DeclVendor
  rather than a TypeVendor.
- Changed the consumers of TypeVendors to use
  DeclVendors instead.
- Provided a few convenience functions on
  ClangASTContext to make that easier.

llvm-svn: 223433
2014-12-05 01:21:59 +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 8691dc5b75 Fixed SBTarget::ReadMemory() to work correctly and the TestTargetAPI.py test case that was reading target memory in TargetAPITestCase.test_read_memory_with_dsym and TargetAPITestCase.test_read_memory_with_dwarf.
The problem was that SBTarget::ReadMemory() was making a new section offset lldb_private::Address by doing:


size_t
SBTarget::ReadMemory (const SBAddress addr,
                      void *buf,
                      size_t size,
                      lldb::SBError &error)
{
        ...
        lldb_private::Address addr_priv(addr.GetFileAddress(), NULL);
        bytes_read = target_sp->ReadMemory(addr_priv, false, buf, size, err_priv);


This is wrong. If you get the file addresss from the "addr" argument and try to read memory using that, it will think the file address is a load address and it will try to resolve it accordingly. This will work fine if your executable is loaded at the same address (no slide), but it won't work if there is a slide.

The fix is to just pass along the "addr.ref()" instead of making a new addr_priv as this will pass along the lldb_private::Address that is inside the SBAddress (which is what we want), and not always change it into something that becomes a load address (if we are running), or abmigious file address (think address zero when you have 150 shared libraries that have sections that start at zero, which one would you pick). The main reason for passing a section offset address to SBTarget::ReadMemory() is so you _can_ read from the actual section + offset that is specified in the SBAddress. 

llvm-svn: 221213
2014-11-04 00:56:30 +00:00
Matthew Gardiner c928de3e8e Added functions to the C++ API, for the benefit of non-8-bit byte architectures.
New functions to give client applications to tools to discover target byte sizes
for addresses prior to ReadMemory. Also added GetPlatform and ReadMemory to the
SBTarget class, since they seemed to be useful utilities to have.

Each new API has had a test case added.

http://reviews.llvm.org/D5867

llvm-svn: 220372
2014-10-22 07:22:56 +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
Zachary Turner 10687b0ea5 Remove LLDB_DEFAULT_SHELL #define, and determine this at runtime.
Differential Revision: http://reviews.llvm.org/D5805
Reviewed by: Greg Clayton

llvm-svn: 220217
2014-10-20 17:46:43 +00:00
Carlo Kok 0fd6fd4fd4 Adds two new functions to SBTarget FindGlobalVariables and FindGlobalFunctions that lets you search by name, by regular expression and by starts with.
llvm-svn: 218140
2014-09-19 19:38:19 +00:00
Zachary Turner 4041116579 Fix some warnings in the Windows build.
llvm-svn: 213194
2014-07-16 20:28:24 +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
Saleem Abdulrasool 3924d754e5 Remove unused variables
Address the 'variable set but not used' warning from GCC.  In some cases a few
additional calls were removed where there should be no visible side effects of
the calls (i.e. should not effect any cached state).

llvm-svn: 210879
2014-06-13 03:30:39 +00:00
Greg Clayton 3e32ad65fb Allow clients to control the exact path that is used to launch processes by adding new calls to SBLaunchInfo.
The new calls are:

SBFileSpec
SBLaunchInfo::GetExecutableFile ();

void
SBLaunchInfo::SetExecutableFile (SBFileSpec exe_file, bool add_as_first_arg);

<rdar://problem/16833939>

llvm-svn: 208245
2014-05-07 20:16:06 +00:00
Jim Ingham 8646d3c164 Rename eExecution*** to eExpression*** to be consistent with the result type.
llvm-svn: 207945
2014-05-05 02:47:44 +00:00
Jim Ingham 1624a2d3c8 Make the Expression Execution result enum available to the SB API layer.
Add a callback that will allow an expression to be cancelled between the
expression evaluation stages (for the ClangUserExpressions.)

<rdar://problem/16790467>, <rdar://problem/16573440>

llvm-svn: 207944
2014-05-05 02:26:40 +00:00
Saleem Abdulrasool 324a103619 sweep up -Wformat warnings from gcc
This is a purely mechanical change explicitly casting any parameters for printf
style conversion.  This cleans up the warnings emitted by gcc 4.8 on Linux.

llvm-svn: 205607
2014-04-04 04:06:10 +00:00
Jason Molenda a332978b2a lldb arm64 import.
These changes were written by Greg Clayton, Jim Ingham, Jason Molenda.

It builds cleanly against TOT llvm with xcodebuild.  I updated the
cmake files by visual inspection but did not try a build.  I haven't
built these sources on any non-Mac platforms - I don't think this
patch adds any code that requires darwin, but please let me know if
I missed something.

In debugserver, MachProcess.cpp and MachTask.cpp were renamed to
MachProcess.mm and MachTask.mm as they picked up some new Objective-C
code needed to launch processes when running on iOS.

llvm-svn: 205113
2014-03-29 18:54:20 +00:00
Greg Clayton 751caf65c2 Modified ObjectFile::SetLoadAddress() to now be:
ObjectFile::SetLoadAddress (Target &target,
                            lldb::addr_t value,
                            bool value_is_offset);

Now "value" is a slide if "value_is_offset" is true, and "value" is an image base address otherwise. All previous usage of this API was using slides.

Updated the ObjectFileELF and ObjectFileMachO SetLoadAddress methods to do the right thing.

Also updated the ObjectFileMachO::SetLoadAddress() function to not load __LINKEDIT when it isn't needed and to only load sections that belong to the executable object file.

llvm-svn: 201003
2014-02-07 22:54:47 +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 d5944cd118 For logical backtrace work, lldb needs to track Module unloads etc & symoblicate an address based on a point in time
<rdar://problem/15314403> 

This patch adds a new lldb_private::SectionLoadHistory class that tracks what shared libraries were loaded given a process stop ID. This allows us to keep a history of the sections that were loaded for a time T. Many items in history objects will rely upon the process stop ID in the future.

llvm-svn: 196557
2013-12-06 01:12:00 +00:00
Greg Clayton fbb7634934 Expose SBPlatform through the public API.
Example code:

remote_platform = lldb.SBPlatform("remote-macosx"); 
remote_platform.SetWorkingDirectory("/private/tmp")
debugger.SetSelectedPlatform(remote_platform)

connect_options = lldb.SBPlatformConnectOptions("connect://localhost:1111"); 
err = remote_platform.ConnectRemote(connect_options)
if err.Success():
    print >> result, 'Connected to remote platform:'
    print >> result, 'hostname: %s' % (remote_platform.GetHostname())
    src = lldb.SBFileSpec("/Applications/Xcode.app/Contents/SharedFrameworks/LLDB.framework", False)
    dst = lldb.SBFileSpec()
    # copy src to platform working directory since "dst" is empty
    err = remote_platform.Install(src, dst);
    if err.Success():
        print >> result, '%s installed successfully' % (src)
    else:
        print >> result, 'error: failed to install "%s": %s' % (src, err)


Implemented many calls needed in lldb-platform to be able to install a directory that contains symlinks, file and directories.

The remote lldb-platform can now launch GDB servers on the remote system so that remote debugging can be spawned through the remote platform when connected to a remote platform.

The API in SBPlatform is subject to change and will be getting many new functions.

llvm-svn: 195273
2013-11-20 21:07:01 +00:00
Jason Molenda b57e4a1bc6 Roll back the changes I made in r193907 which created a new Frame
pure virtual base class and made StackFrame a subclass of that.  As
I started to build on top of that arrangement today, I found that it
wasn't working out like I intended.  Instead I'll try sticking with
the single StackFrame class -- there's too much code duplication to
make a more complicated class hierarchy sensible I think.

llvm-svn: 193983
2013-11-04 09:33:30 +00:00
Jason Molenda f23bf7432c Add a new base class, Frame. It is a pure virtual function which
defines a protocol that all subclasses will implement.  StackFrame
is currently the only subclass and the methods that Frame vends are
nearly identical to StackFrame's old methods.

Update all callers to use Frame*/Frame& instead of pointers to
StackFrames.

This is almost entirely a mechanical change that touches a lot of
the code base so I'm committing it alone.  No new functionality is
added with this patch, no new subclasses of Frame exist yet.

I'll probably need to tweak some of the separation, possibly moving
some of StackFrame's methods up in to Frame, but this is a good
starting point.

<rdar://problem/15314068>

llvm-svn: 193907
2013-11-02 02:23:02 +00:00
Enrico Granata dc4db5a6eb <rdar://problem/15144376>
This commit reimplements the TypeImpl class (the class that backs SBType) in terms of a static,dynamic type pair

This is useful for those cases when the dynamic type of an ObjC variable can only be obtained in terms of an "hollow" type with no ivars
In that case, we could either go with the static type (+iVar information) or with the dynamic type (+inheritance chain)

With the new TypeImpl implementation, we try to combine these two sources of information in order to extract as much information as possible
This should improve the functionality of tools that are using the SBType API to do extensive dynamic type inspection

llvm-svn: 193564
2013-10-29 00:28:35 +00:00
Greg Clayton eb023e75dc <rdar://problem/13635174>
Added a way to set hardware breakpoints from the "breakpoint set" command with the new "--hardware" option. Hardware breakpoints are not a request, they currently are a requirement. So when breakpoints are specified as hardware breakpoints, they might fail to be set when they are able to be resolved and should be used sparingly. This is currently hooked up for GDB remote debugging. 

Linux and FreeBSD should quickly enable this feature if possible, or return an error for any breakpoints that are hardware breakpoint sites in the "virtual Error Process::EnableBreakpointSite (BreakpointSite *bp_site);" function.

llvm-svn: 192491
2013-10-11 19:48:25 +00:00
Enrico Granata 347c2aa3e3 <rdar://problem/14028923>
Implement SBTarget::CreateValueFromAddress() with a behavior equivalent to SBValue::CreateValueFromAddress()
(but without the need to grab an SBValue first just as a starting point to make up another SBValue out of whole cloth)

llvm-svn: 192239
2013-10-08 21:49:02 +00:00