Commit Graph

2195 Commits

Author SHA1 Message Date
Johnny Chen 511e8c0d36 Add a Python script which launches a program from within lldb and loop until the
process stops for some reason.  main.c (compiled into a.out) is used as an example in
the README-run-until-faulted file.

llvm-svn: 128755
2011-04-02 01:20:28 +00:00
Greg Clayton 2b4d9b7f11 Some OpenBSD patches from Amit Kulkarni.
llvm-svn: 128721
2011-04-01 18:18:34 +00:00
Greg Clayton ac4827fe05 Get rid of LONG_LONG_MAX and ULONG_LONG_MAX, and use LLONG_MAX and ULLONG_MAX
respectively.

llvm-svn: 128720
2011-04-01 18:14:08 +00:00
Johnny Chen 7d90b1f883 Modify test_process_list()'s expect sub-strings to be up-to-date.
llvm-svn: 128697
2011-04-01 00:48:40 +00:00
Johnny Chen df2963ed46 Add TestSymbolAPI.py to test the newly added SBSymbol and SBAddress APIs:
lldb::SymbolType SBSymbol::GetType();

  lldb::SectionType SBAddress::GetSectionType ();
  lldb::SBModule SBAddress::GetModule ();

Also add an lldb::SBModule::GetUUIDString() API which is easier for Python
to work with in the test script.

llvm-svn: 128695
2011-04-01 00:35:55 +00:00
Greg Clayton 95bf0fd3ab Added the ability to get a broadcaster event name for a given broadcaster
event.

Modified the ProcessInfo structure to contain all process arguments. Using the
new function calls on MacOSX allows us to see the full process name, not just
the first 16 characters. 

Added a new platform command: "platform process info <pid> [<pid> <pid> ...]"
that can be used to get detailed information for a process including all 
arguments, user and group info and more.

llvm-svn: 128694
2011-04-01 00:29:43 +00:00
Jim Ingham 8d543de400 Remove unneeded ExecutionContextScope variables.
llvm-svn: 128685
2011-03-31 23:01:21 +00:00
Jim Ingham f55a836181 Little bit of cleanup, and added a few new bits.
llvm-svn: 128678
2011-03-31 21:56:13 +00:00
Caroline Tice d20c8d1a17 Fix a few typos in the previous commit.
llvm-svn: 128671
2011-03-31 21:31:50 +00:00
Caroline Tice 028b8b7bb7 Add code to emulate VLD1 (single element to all lanes) ARM instruction.
llvm-svn: 128669
2011-03-31 21:15:29 +00:00
Caroline Tice 5901ea7e67 Add code to emulate VST1 (single element from one lane) ARM
instruction (more floating point stores).

llvm-svn: 128661
2011-03-31 19:17:12 +00:00
Caroline Tice d64a08144c Add code to emulate VST1 (multiple single elements) ARM
instruction (floating point store).

llvm-svn: 128656
2011-03-31 18:44:04 +00:00
Caroline Tice bc2b96b699 Add code to emulate VLD1 (single element to one lane) floating point
register load instruction (ARM) .

llvm-svn: 128646
2011-03-31 17:58:23 +00:00
Caroline Tice 8071f11208 Revert changes that caused this scheme to be hidden in certain cases.
llvm-svn: 128638
2011-03-31 16:45:59 +00:00
Caroline Tice 31d8498f6f Add code to emulate VLD1 (multiple single elements) ARM instruction.
llvm-svn: 128637
2011-03-31 16:41:19 +00:00
Caroline Tice 8e4ed85520 Add code to emulate VSTR ARM instruction (store a floating point register).
llvm-svn: 128614
2011-03-31 05:38:36 +00:00
Caroline Tice df6dec754b Add code to emulate the VLDR Arm instruction (load a floating poitn register).
llvm-svn: 128613
2011-03-31 05:05:30 +00:00
Caroline Tice b5c6a3e50a Add "Bits64" utility function.
Add code to emulate VSTM ARM instruction (store multiple floating point registers).

llvm-svn: 128609
2011-03-31 03:26:23 +00:00
Johnny Chen d16c105c3d Take advantage of the newly added SBSymbol.GetType() API to check whether we
have a Code symbol and do disassembly on it.

llvm-svn: 128604
2011-03-31 01:34:55 +00:00
Greg Clayton 05d2b7f741 Added some functions to our API related to classifying symbols as code, data,
const data, etc, and also for SBAddress objects to classify their type of
section they are in and also getting the module for a section offset address.

    lldb::SymbolType SBSymbol::GetType();
    
    lldb::SectionType SBAddress::GetSectionType ();
    lldb::SBModule SBAddress::GetModule ();

llvm-svn: 128602
2011-03-31 01:08:07 +00:00
Johnny Chen 0e43f321b6 Add a generator to iterate through the code symbols for a given target.
To be modified to take advantage of the new SBSymbol API which checks a symbol for its type.

llvm-svn: 128601
2011-03-31 01:06:28 +00:00
Jim Ingham 6035b67d2c Convert ValueObject to explicitly maintain the Execution Context in which they were created, and then use that when they update themselves. That means all the ValueObject evaluate me type functions that used to require a Frame object now do not. I didn't remove the SBValue API's that take this now useless frame, but I added ones that don't require the frame, and marked the SBFrame taking ones as deprecated.
llvm-svn: 128593
2011-03-31 00:19:25 +00:00
Jim Ingham 3a195b7e78 Add GetFrameWithStackID to the StackFrameList and the Thread (which routes to its StackFrameList.)
llvm-svn: 128592
2011-03-31 00:15:49 +00:00
Caroline Tice 920c6c9855 Modify ARM instruction tables to allow for specifying floating point variants.
Add code to emulate VLDM ARM instruction (loading multiplt floating point registers).

Add function declarations for other floating point instructions to emulate.

llvm-svn: 128589
2011-03-31 00:02:51 +00:00
Jim Ingham 270684de6e Add a LaunchSimple API that is nicer to use for quick scripts.
llvm-svn: 128588
2011-03-31 00:01:24 +00:00
Johnny Chen 10889e6cd6 Modify self.expect() patterns to react to API change for SourceManager.DisplaySourceLinesWithLineNumbers().
llvm-svn: 128581
2011-03-30 22:28:50 +00:00
Johnny Chen c640179166 A a simple test file for some lldb 'platform' commands.
Add a missing result.SetStatus() stmt to the CommandObjectPlatformList::Execute() impl.

llvm-svn: 128575
2011-03-30 21:19:59 +00:00
Caroline Tice 55bff33b50 Fill in code for EmulateSTRDImm and EmulateSTRDReg, to emulate the
STRD (immediate) and STRD (register) instructions.

llvm-svn: 128570
2011-03-30 19:02:56 +00:00
Johnny Chen 318e7ba65d Add an option to specify the symbols to disassemble instead of the existing 'num of symbols to disassemble'
option.  If both are present, the 'symbols to disassemble' overrides the 'num of symbols to disassemble'.

An example usage:

$ ./lldb-disasm.py -C 'platform create remote-ios' -e /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk/usr/lib/libSystem.B.dylib -o '-r -n' -s vprintf -s acosf_special

llvm-svn: 128569
2011-03-30 18:47:54 +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
Caroline Tice 23443245e7 Fill in EmulateLDRDRegister to emulate LDRD (register) instruction.
Remove stubs for functions not-to-be-implemented at the moment.

llvm-svn: 128559
2011-03-30 17:54:52 +00:00
Johnny Chen 90bb905137 Minor import statement change.
llvm-svn: 128558
2011-03-30 17:54:35 +00:00
Caroline Tice f0901227e3 Fill in EmulateLDRLImmediate to emulate the LDRD (immediate) ARM instruction.
llvm-svn: 128556
2011-03-30 17:11:45 +00:00
Stephen Wilson 464280542b linux: create thread plans for stepping thru PLT entries
Using the new synthetic symbols generated by ObjectFileELF, have the Linux
dynamic loader plugin generate a thread plan that will take us thru a PLT entry
to the corresponding target function.

llvm-svn: 128552
2011-03-30 16:11:36 +00:00
Stephen Wilson 499b40e8a7 elf: synthesize symbols for PLT entries
When populating symbol tables ObjectFileELF now generates a set of synthetic
trampoline symbols.  These new symbols correspond to entries in the program
linkage table and have a (possibly mangled) name identifying the corresponding
symbol in some DSO.  These symbols will be used by the DynamicLoader loader
plugin on Linux to provide thread plans when execution flows from one DSO to
another.

llvm-svn: 128550
2011-03-30 16:07:05 +00:00
Caroline Tice e746dbf83b Fix typo in previous check-in.
llvm-svn: 128549
2011-03-30 16:05:23 +00:00
Stephen Wilson 43fe645b62 elf: add support for ELF relocation entries
llvm-svn: 128548
2011-03-30 15:59:12 +00:00
Stephen Wilson 84ffe7033c linux: initial support for 'real' signal handling
This patch upgrades the Linux process plugin to handle a larger range of signal
events.  For example, we can detect when the inferior has "crashed" and why,
interrupt a running process, deliver an arbitrary signal, and so on.

llvm-svn: 128547
2011-03-30 15:55:52 +00:00
Stephen Wilson 2298dee87a give subclasses access to UnixSignals::m_signals
Allow subclasses of UnixSignals to access m_signals by marking the member
protected instead of private.  This enables a subclass to provide a default
signal set as appropriate on construction.

llvm-svn: 128544
2011-03-30 15:33:24 +00:00
Caroline Tice 527637d64a Fill in EmulateSTRImmARM to emulate the STR (immediate,ARM) instruction.
llvm-svn: 128528
2011-03-30 06:03:24 +00:00
Caroline Tice a0e8cd5e89 Fill in EmulateSTRBImmARM to emulate the STRB (immediate, ARM) instruction.
llvm-svn: 128527
2011-03-30 05:40:56 +00:00
Caroline Tice 4cee4bd9f4 Fill in EmulateSTREX to emulate the STREX ARM instruction.
llvm-svn: 128525
2011-03-30 05:15:46 +00:00
Jim Ingham 406ef962d9 The example had gotten stale, so I made it work again, and for fun printed out the frame registers as well.
llvm-svn: 128523
2011-03-30 01:55:23 +00:00
Greg Clayton efcb603008 Updated the web site with a getting started with LLDB and also some resources
to help GDB users figure out the equivalent commands in LLDB.

llvm-svn: 128518
2011-03-30 01:02:37 +00:00
Stephen Wilson dc91686f48 Unfortunately, sranddev() is not available on all platforms so seed using the
current time instead.

llvm-svn: 128514
2011-03-30 00:12:40 +00:00
Caroline Tice 799e203894 Fill in code in EmulateSUBReg to emulate the SUB (register) ARM instruction.
llvm-svn: 128508
2011-03-29 23:44:20 +00:00
Jim Ingham dedfac0b95 Can't count on the particular number of modules loaded into a basic C executable.
llvm-svn: 128505
2011-03-29 23:22:29 +00:00
Caroline Tice c5bcda4619 Fill in code in EmulateADDRegShift, to emulate the ADD
(register-shifted register) ARM instruction.

llvm-svn: 128500
2011-03-29 23:03:16 +00:00
Jim Ingham 7572fa75cf Can't just call "rand" to get a random port, 'cause then you'll get the same sequence in two lldb's. This makes running lldb on lldb not work very well.
llvm-svn: 128493
2011-03-29 21:45:47 +00:00
Caroline Tice eba8f83479 Add subtraction context.
Add code to emulate SUB (SP minus register) ARM instruction.

Add stubs for other ARM emulation functions that need to be written.

llvm-svn: 128491
2011-03-29 21:24:06 +00:00