Commit Graph

14 Commits

Author SHA1 Message Date
Greg Clayton dbc6c0bbc9 <rdar://problem/12211320>
When the vendor and OS are not specified in a triple, only let unspecified vendor and OS fields matchs for the current host platform.

llvm-svn: 163248
2012-09-05 21:19:23 +00:00
Greg Clayton 7051231709 <rdar://problem/11358639>
Switch over to the "*-apple-macosx" for desktop and "*-apple-ios" for iOS triples.

Also make the selection process for auto selecting platforms based off of an arch much better.

llvm-svn: 156354
2012-05-08 01:45:38 +00:00
Greg Clayton b3a40ba812 Platforms can now auto-select themselves if you specify a full target triple when doing a "target create" command.
Each platform now knows if it can handle an architecture and a platform can be found using an architecture. Each platform can look at the arch, vendor and OS and know if it should be used or not.

llvm-svn: 153104
2012-03-20 18:34:04 +00:00
Greg Clayton 722cec2957 <rdar://problem/9886712>
Added a dedicated platform for the iOS simulator. This helps us to find the
correct files for a simulator binary before running and helps us select the 
right arch (i386 only) for files when we load them.

llvm-svn: 151436
2012-02-25 06:56:35 +00:00
Greg Clayton c859e2d524 Full core file support has been added for mach-o core files.
Tracking modules down when you have a UUID and a path has been improved.

DynamicLoaderDarwinKernel no longer parses mach-o load commands and it
now uses the memory based modules now that we can load modules from memory.

Added a target setting named "target.exec-search-paths" which can be used
to supply a list of directories to use when trying to look for executables.
This allows one or more directories to be used when searching for modules
that may not exist in the SDK/PDK. The target automatically adds the directory
for the main executable to this list so this should help us in tracking down
shared libraries and other binaries. 

llvm-svn: 150426
2012-02-13 23:10:39 +00:00
Jason Molenda d74db47a41 Move the ARM specific arch picker from PlatformRemoteiOS.cpp to
PlatformDarwin.cpp -- call it from both PlatformRemoteiOS.cpp
and the native process PlatformDarwin.cpp when running on an arm
system.

Bump lldb version number to 94.

llvm-svn: 146249
2011-12-09 07:50:50 +00:00
Greg Clayton a63d08c9ff Modified the LocateMacOSXFilesUsingDebugSymbols(...) function to locate
an executable file if it is right next to a dSYM file that is found using
DebugSymbols. The code also looks into a bundle if the dSYM file is right
next to a bundle.

Modified the MacOSX kernel dynamic loader plug-in to correctly set the load
address for kext sections. This is a tad tricky because of how LLDB chooses
to treat mach-o segments with no name. Also modified the loader to properly
handle the older version 1 kext summary info.

Fixed a crasher in the Mach-o object file parser when it is trying to set
the section size correctly for dSYM sections.

Added packet dumpers to the CommunicationKDP class. We now also properly 
detect address byte sizes based on the cpu type and subtype that is provided.
Added a read memory and read register support to CommunicationKDP. Added a
ThreadKDP class that now uses subclasses of the RegisterContextDarwin_XXX for
arm, i386 and x86_64. 

Fixed some register numbering issues in the RegisterContextDarwin_arm class
and added ARM GDB numbers to the ARM_GCC_Registers.h file.

Change the RegisterContextMach_XXX classes over to subclassing their
RegisterContextDarwin_XXX counterparts so we can share the mach register 
contexts between the user and kernel plug-ins.

llvm-svn: 135466
2011-07-19 03:57:15 +00:00
Greg Clayton ab65b34fdc Added auto completion for architecture names and for platforms.
Modified the OptionGroupOptions to be able to specify only some of the options
that should be appended by using the usage_mask in the group defintions and
also provided a way to remap them to a new usage mask after the copy. This 
allows options to be re-used and also targetted for specific option groups.

Modfied the CommandArgumentType to have a new eArgTypePlatform enumeration.
Taught the option parser to be able to automatically use the appropriate
auto completion for a given options if nothing is explicitly specified
in the option definition. So you don't have to specify it in the option
definition tables.

Renamed the default host platform name to "host", and the default platform
hostname to be "localhost".

Modified the "file" and "platform select" commands to make sure all options
and args are good prior to creating a new platform. Also defer the computation
of the architecture in the file command until all options are parsed and the
platform has either not been specified or reset to a new value to avoid
computing the arch more than once.

Switch the PluginManager code over to using llvm::StringRef for string
comparisons and got rid of all the AccessorXXX functions in lieu of the newer
mutex + collection singleton accessors.

llvm-svn: 129483
2011-04-13 22:47:15 +00:00
Greg Clayton 32e0a7509c Many improvements to the Platform base class and subclasses. The base Platform
class now implements the Host functionality for a lot of things that make 
sense by default so that subclasses can check:

int
PlatformSubclass::Foo ()
{
    if (IsHost())
        return Platform::Foo (); // Let the platform base class do the host specific stuff
    
    // Platform subclass specific code...
    int result = ...
    return result;
}

Added new functions to the platform:

    virtual const char *Platform::GetUserName (uint32_t uid);
    virtual const char *Platform::GetGroupName (uint32_t gid);

The user and group names are cached locally so that remote platforms can avoid
sending packets multiple times to resolve this information.

Added the parent process ID to the ProcessInfo class. 

Added a new ProcessInfoMatch class which helps us to match processes up
and changed the Host layer over to using this new class. The new class allows
us to search for processs:
1 - by name (equal to, starts with, ends with, contains, and regex)
2 - by pid
3 - And further check for parent pid == value, uid == value, gid == value, 
    euid == value, egid == value, arch == value, parent == value.
    
This is all hookup up to the "platform process list" command which required
adding dumping routines to dump process information. If the Host class 
implements the process lookup routines, you can now lists processes on 
your local machine:

machine1.foo.com % lldb
(lldb) platform process list 
PID    PARENT USER       GROUP      EFF USER   EFF GROUP  TRIPLE                   NAME
====== ====== ========== ========== ========== ========== ======================== ============================
99538  1      username   usergroup  username   usergroup  x86_64-apple-darwin      FileMerge
94943  1      username   usergroup  username   usergroup  x86_64-apple-darwin      mdworker
94852  244    username   usergroup  username   usergroup  x86_64-apple-darwin      Safari
94727  244    username   usergroup  username   usergroup  x86_64-apple-darwin      Xcode
92742  92710  username   usergroup  username   usergroup  i386-apple-darwin        debugserver


This of course also works remotely with the lldb-platform:

machine1.foo.com % lldb-platform --listen 1234

machine2.foo.com % lldb
(lldb) platform create remote-macosx
  Platform: remote-macosx
 Connected: no
(lldb) platform connect connect://localhost:1444
  Platform: remote-macosx
    Triple: x86_64-apple-darwin
OS Version: 10.6.7 (10J869)
    Kernel: Darwin Kernel Version 10.7.0: Sat Jan 29 15:17:16 PST 2011; root:xnu-1504.9.37~1/RELEASE_I386
  Hostname: machine1.foo.com
 Connected: yes
(lldb) platform process list 
PID    PARENT USER       GROUP      EFF USER   EFF GROUP  TRIPLE                   NAME
====== ====== ========== ========== ========== ========== ======================== ============================
99556  244    username   usergroup  username   usergroup  x86_64-apple-darwin      trustevaluation
99548  65539  username   usergroup  username   usergroup  x86_64-apple-darwin      lldb
99538  1      username   usergroup  username   usergroup  x86_64-apple-darwin      FileMerge
94943  1      username   usergroup  username   usergroup  x86_64-apple-darwin      mdworker
94852  244    username   usergroup  username   usergroup  x86_64-apple-darwin      Safari

The lldb-platform implements everything with the Host:: layer, so this should
"just work" for linux. I will probably be adding more stuff to the Host layer
for launching processes and attaching to processes so that this support should
eventually just work as well.

Modified the target to be able to be created with an architecture that differs
from the main executable. This is needed for iOS debugging since we can have
an "armv6" binary which can run on an "armv7" machine, so we want to be able
to do:

% lldb
(lldb) platform create remote-ios
(lldb) file --arch armv7 a.out

Where "a.out" is an armv6 executable. The platform then can correctly decide
to open all "armv7" images for all dependent shared libraries.

Modified the disassembly to show the current PC value. Example output:

(lldb) disassemble --frame
a.out`main:
   0x1eb7:  pushl  %ebp
   0x1eb8:  movl   %esp, %ebp
   0x1eba:  pushl  %ebx
   0x1ebb:  subl   $20, %esp
   0x1ebe:  calll  0x1ec3                   ; main + 12 at test.c:18
   0x1ec3:  popl   %ebx
-> 0x1ec4:  calll  0x1f12                   ; getpid
   0x1ec9:  movl   %eax, 4(%esp)
   0x1ecd:  leal   199(%ebx), %eax
   0x1ed3:  movl   %eax, (%esp)
   0x1ed6:  calll  0x1f18                   ; printf
   0x1edb:  leal   213(%ebx), %eax
   0x1ee1:  movl   %eax, (%esp)
   0x1ee4:  calll  0x1f1e                   ; puts
   0x1ee9:  calll  0x1f0c                   ; getchar
   0x1eee:  movl   $20, (%esp)
   0x1ef5:  calll  0x1e6a                   ; sleep_loop at test.c:6
   0x1efa:  movl   $12, %eax
   0x1eff:  addl   $20, %esp
   0x1f02:  popl   %ebx
   0x1f03:  leave
   0x1f04:  ret
   
This can be handy when dealing with the new --line options that was recently
added:

(lldb) disassemble --line
a.out`main + 13 at test.c:19
   18  	{
-> 19  		printf("Process: %i\n\n", getpid());
   20  	    puts("Press any key to continue..."); getchar();
-> 0x1ec4:  calll  0x1f12                   ; getpid
   0x1ec9:  movl   %eax, 4(%esp)
   0x1ecd:  leal   199(%ebx), %eax
   0x1ed3:  movl   %eax, (%esp)
   0x1ed6:  calll  0x1f18                   ; printf

Modified the ModuleList to have a lookup based solely on a UUID. Since the
UUID is typically the MD5 checksum of a binary image, there is no need
to give the path and architecture when searching for a pre-existing
image in an image list.

Now that we support remote debugging a bit better, our lldb_private::Module
needs to be able to track what the original path for file was as the platform
knows it, as well as where the file is locally. The module has the two 
following functions to retrieve both paths:

const FileSpec &Module::GetFileSpec () const;
const FileSpec &Module::GetPlatformFileSpec () const;

llvm-svn: 128563
2011-03-30 18:16:51 +00:00
Greg Clayton e0d378b334 Fixed the LLDB build so that we can have private types, private enums and
public types and public enums. This was done to keep the SWIG stuff from
parsing all sorts of enums and types that weren't needed, and allows us to
abstract our API better.

llvm-svn: 128239
2011-03-24 21:19:54 +00:00
Greg Clayton 1cb6496eb0 Did a lot more work on abtracting and organizing the platforms.
On Mac OS X we now have 3 platforms:
PlatformDarwin - must be subclassed to fill in the missing pure virtual funcs
                 but this implements all the common functionality between
                 remote-macosx and remote-ios. It also allows for another
                 platform to be used (remote-gdb-server for now) when doing
                 remote connections. Keeping this pluggable will allow for
                 flexibility.
PlatformMacOSX - Now implements both local and remote macosx desktop platforms.
PlatformRemoteiOS - Remote only iOS that knows how to locate SDK files in the
                    cached SDK locations on the host.

A new agnostic platform has been created:
PlatformRemoteGDBServer - this implements the platform using the GDB remote 
                          protocol and uses the built in lldb_private::Host
                          static functions to implement many queries.

llvm-svn: 128193
2011-03-24 04:28:38 +00:00
Greg Clayton d314e810a7 Added new platform commands:
platform connect <args>
platform disconnect

Each platform can decide the args they want to use for "platform connect". I 
will need to add a function that gets the connect options for the current
platform as each one can have different options and argument counts.

Hooked up more functionality in the PlatformMacOSX and PlatformRemoteiOS.
Also started an platform agnostic PlatformRemoteGDBServer.cpp which can end
up being used by one or more actual platforms. It can also be specialized and
allow for platform specific commands.

llvm-svn: 128123
2011-03-23 00:09:55 +00:00
Greg Clayton ded470d31a Added more platform support. There are now some new commands:
platform status -- gets status information for the selected platform
platform create <platform-name> -- creates a new instance of a remote platform
platform list -- list all available platforms
platform select -- select a platform instance as the current platform (not working yet)

When using "platform create" it will create a remote platform and make it the
selected platform. For instances for iPhone OS debugging on Mac OS X one can 
do:

(lldb) platform create remote-ios --sdk-version=4.0
Remote platform: iOS platform
SDK version: 4.0
SDK path: "/Developer/Platforms/iPhoneOS.platform/DeviceSupport/4.0"
Not connected to a remote device.
(lldb) file ~/Documents/a.out
Current executable set to '~/Documents/a.out' (armv6).
(lldb) image list
[  0] /Volumes/work/gclayton/Documents/devb/attach/a.out
[  1] /Developer/Platforms/iPhoneOS.platform/DeviceSupport/4.0/Symbols/usr/lib/dyld
[  2] /Developer/Platforms/iPhoneOS.platform/DeviceSupport/4.0/Symbols/usr/lib/libSystem.B.dylib


Note that this is all happening prior to running _or_ connecting to a remote
platform. Once connected to a remote platform the OS version might change which
means we will need to update our dependecies. Also once we run, we will need
to match up the actualy binaries with the actualy UUID's to files in the
SDK, or download and cache them locally.

This is just the start of the remote platforms, but this modification is the
first iteration in getting the platforms really doing something.

llvm-svn: 127934
2011-03-19 01:12:21 +00:00
Greg Clayton e996fd30be LLDB now has "Platform" plug-ins. Platform plug-ins are plug-ins that provide
an interface to a local or remote debugging platform. By default each host OS
that supports LLDB should be registering a "default" platform that will be
used unless a new platform is selected. Platforms are responsible for things
such as:
- getting process information by name or by processs ID
- finding platform files. This is useful for remote debugging where there is 
  an SDK with files that might already or need to be cached for debug access.
- getting a list of platform supported architectures in the exact order they
  should be selected. This helps the native x86 platform on MacOSX select the
  correct x86_64/i386 slice from universal binaries.
- Connect to remote platforms for remote debugging
- Resolving an executable including finding an executable inside platform
  specific bundles (macosx uses .app bundles that contain files) and also
  selecting the appropriate slice of universal files for a given platform.

So by default there is always a local platform, but remote platforms can be
connected to. I will soon be adding a new "platform" command that will support
the following commands:
(lldb) platform connect --name machine1 macosx connect://host:port
Connected to "machine1" platform.
(lldb) platform disconnect macosx

This allows LLDB to be well setup to do remote debugging and also once 
connected process listing and finding for things like:
(lldb) process attach --name x<TAB>

The currently selected platform plug-in can now auto complete any available
processes that start with "x". The responsibilities for the platform plug-in
will soon grow and expand.

llvm-svn: 127286
2011-03-08 22:40:15 +00:00