Commit Graph

291 Commits

Author SHA1 Message Date
Han Ming Ong c9a35eb947 Use a more unique end delimiter. In any case, the thread names are hexified when returning to lldb.
llvm-svn: 172021
2013-01-10 00:04:49 +00:00
Han Ming Ong 95b604b276 <rdar://problem/12975489>
1. Using mach port number, just like when inferior is paused.
2. Use key:value pair of thread used time instead of comma separated notation.

llvm-svn: 172012
2013-01-09 22:37:34 +00:00
Jason Molenda 153c8e0cc2 <rdar://problem/12602653>
Add unconditional logging messages to every place in debugserver
where we send a SIGKILL signal or do a ptrace PT_KILL call to
terminate the inferior process.  When the debuggee is silently
killed off, the console logging from debugserver can disambiguate
whether debugserver killed off the process because it failed to
completely set it up, becuase it was told to (via the "k" packet),
or if some external daemon killed it.

llvm-svn: 171606
2013-01-05 06:08:51 +00:00
Jason Molenda f17b5ac6e1 <rdar://problem/11961650>
Update the debugserver "qProcessInfo" implementation to return the
cpu type, cpu subtype, OS and vendor information just like qHostInfo
does so lldb can create an ArchSpec based on the returned values.

Add a new GetProcessArchitecture to GDBRemoteCommunicationClient akin
to GetHostArchitecture.  If the qProcessInfo packet is supported,
GetProcessArchitecture will return the cpu type / subtype of the 
process -- e.g. a 32-bit user process running on a 64-bit x86_64 Mac
system. 

Have ProcessGDBRemote set the Target's architecture based on the 
GetProcessArchitecture when we've completed an attach/launch/connect.

llvm-svn: 170491
2012-12-19 02:54:03 +00:00
Jason Molenda fca9c6bb9f Add a new qProcessInfo packet to debugserver.
This can be used by lldb to ask for information
about the process debugserver is attached to/launched.
Particularly useful on a 64-bit x86 Mac system which
can run  32-bit or 64-bit user-land processes.

llvm-svn: 170409
2012-12-18 04:39:43 +00:00
Han Ming Ong 48a100190e <rdar://problem/12890948>
Send thread name using hex encoding.

llvm-svn: 170370
2012-12-17 20:53:19 +00:00
Han Ming Ong 3e70c45fa8 <rdar://problem/12890901>
Capturing thread name during profiling.

llvm-svn: 170312
2012-12-17 07:33:07 +00:00
Greg Clayton 12057dafea Get rid of a warning where functions in DNB.h were extern "C" when they don't need to be anymore.
llvm-svn: 169202
2012-12-04 01:57:36 +00:00
Han Ming Ong 929a94f026 <rdar://problem/12780259>
Prevent async and sync calls to get profile data from stomping on each other.
At the same time, don't use '$' as end delimiter per chunk of profile data.

llvm-svn: 168948
2012-11-29 22:14:45 +00:00
Jason Molenda b8e5c79af1 Correct the label for the com.apple.debugserver.posix plist.
<rdar://problem/12769073> 

llvm-svn: 168834
2012-11-29 00:01:49 +00:00
Han Ming Ong 8594ae85d5 <rdar://problem/12759744> Provide physical memory distribution as part of profile data
Make use of unix system calls to provide physical memory usage profile data.

llvm-svn: 168720
2012-11-27 19:21:03 +00:00
Jason Molenda d251c9d163 Han Ming's commit in r168228 had a bunch of 4-space tabs
in the source files.  Expand to spaces.  No content changes,
just whitespace.

llvm-svn: 168238
2012-11-17 01:41:04 +00:00
Han Ming Ong c811d382f0 Follow up on <rdar://12720514>. Removed commented out code.
llvm-svn: 168232
2012-11-17 00:33:14 +00:00
Han Ming Ong ab3b8b22a1 <rdar://problem/12720514> Sub-TLF: Provide service to profile the inferior
This allows client to query profiling states on the inferior.

llvm-svn: 168228
2012-11-17 00:21:04 +00:00
Greg Clayton 1cb5951a2f Added a posix_spawn based launchd plist for always using posix_spawn to launch programs.
llvm-svn: 167563
2012-11-08 00:06:59 +00:00
Greg Clayton 9eb4e03873 <rdar://problem/12647273>
Added the ability to get the full process list when using the --applist option in debugserver.

llvm-svn: 167502
2012-11-06 23:36:26 +00:00
Jason Molenda 0b2dbe0ebe Fix an error message in debugserver so it doesn't print "Unable to
launch process (null)" because we changed argv while doing argument
parsing.

llvm-svn: 167202
2012-11-01 02:02:59 +00:00
Jim Ingham 490bccd659 Switch from using KERN_PROCARGS2 to get the path to the executed process to proc_pidpath. The former was flakey, and the whole point of libproc is to protect us from potential flakiness at that level...
<rdar://problem/12594781>

llvm-svn: 167194
2012-11-01 01:04:46 +00:00
Greg Clayton d9c2370b33 Added the plists to the debugserver project and fixed the labels for the new plists.
llvm-svn: 167183
2012-10-31 23:49:14 +00:00
Greg Clayton e11b43bc69 More launchd style plists.
llvm-svn: 167182
2012-10-31 23:43:37 +00:00
Greg Clayton 48baf7a788 Resolve any bundle paths we are given when the specified executable is a bundle.
llvm-svn: 167175
2012-10-31 21:44:39 +00:00
Greg Clayton 01db0c6823 Provide an SSL context ref in case SLL is needed for communication.
llvm-svn: 165856
2012-10-13 00:18:18 +00:00
Greg Clayton 3e672345bc <rdar://problem/12042500>
Fixed an issue where we would try to launch an application twice and the second failure would cover up the first.

llvm-svn: 165756
2012-10-11 22:05:13 +00:00
Greg Clayton 1698be7352 Fix build warnings.
llvm-svn: 165755
2012-10-11 22:04:01 +00:00
Greg Clayton 813ddfcdd0 <rdar://problem/12219840>
Don't leak mach ports when calling "mach_thread_self()".

llvm-svn: 164152
2012-09-18 18:19:49 +00:00
Greg Clayton 43e0af06b4 Stop using the "%z" size_t modifier and cast all size_t values to uint64_t. Some platforms don't support this modification.
llvm-svn: 164148
2012-09-18 18:04:04 +00:00
Greg Clayton 85fb1b93f3 <rdar://problem/11935492>
Fixed an issue where if we call "Process::Destroy()" and the process is running, if we try to stop it and get "exited" back as the stop reason, we will still deliver the exited event.

llvm-svn: 163591
2012-09-11 02:33:37 +00:00
Jim Ingham 279ceecf65 Add a call to "sync" a thread state before checkpointing registers in preparation for
calling functions.  This is necessary on Mac OS X, since bad things can happen if you set
the registers of a thread that's sitting in a kernel trap.

<rdar://problem/11145013>

llvm-svn: 160756
2012-07-25 21:12:43 +00:00
Jim Ingham 1bfe4f6417 Use a more efficient API to tell if a process belongs to springboard or not.
llvm-svn: 160655
2012-07-24 01:23:53 +00:00
Jim Ingham cd16df9154 Add "vAttachOrWait" to debugserver, so you can implement "attach to the process if it exists OR wait for it" without race conditions. Use that in lldb.
llvm-svn: 160578
2012-07-20 21:37:13 +00:00
Greg Clayton 7dab2be287 <rdar://problem/11908082>
Allow debugserver to match process names that are longer than MAXCOMLEN (16) characters. We do this by digging up argv[0] from another sysctl if the process name supplied is longer than 16 characters.

llvm-svn: 160487
2012-07-19 02:45:35 +00:00
Greg Clayton 23f59509a8 Ran the static analyzer on the codebase and found a few things.
llvm-svn: 160338
2012-07-17 03:23:13 +00:00
Jim Ingham 73472eef4d Fix an off by one error when handling a packet where our read buffer size truncates the first chunk of the packet
between the two chars representing the checksum.

<rdar://problem/11882074>

llvm-svn: 160310
2012-07-16 18:56:05 +00:00
Enrico Granata f04a21917c <rdar://problem/11782789> Changes to the watchpoint implementation on ARM so that we single-step before stopping at the WP. This is necessary because on ARM the WP triggers before the opcode is actually executed, so we would be unable to continue since we would keep hitting the WP. We work around this by disabling the WP, single stepping and then putting the WP back in place.
llvm-svn: 160199
2012-07-13 23:18:48 +00:00
Greg Clayton 503cd42259 Spelling fixes.
llvm-svn: 159466
2012-06-29 21:58:00 +00:00
Enrico Granata c76715f3be <rdar://problem/11679380> Make sure we do not fallback to software stepping when hardware stepping should work but fails to get enabled. Also removing dead code paths
llvm-svn: 159322
2012-06-28 01:23:30 +00:00
Filipe Cabecinhas 2f42bb03b7 DNBLogThreadedIf already inserts a newline
llvm-svn: 158995
2012-06-22 13:54:32 +00:00
Johnny Chen be4e208103 rdar://problem/11390100
debugserver needs to be able to posix_spawn debugging apps that have ".app" in their path that aren't bundles

llvm-svn: 158327
2012-06-11 21:05:26 +00:00
Johnny Chen a539598f65 Properly initialize the member fields used for hardware watchpoint transaction management.
llvm-svn: 157878
2012-06-02 06:25:23 +00:00
Johnny Chen 847075607f rdar://problem/11320188
Designate MachThreadList as a transaction coordinator when doing Enable/DisableHardwareWatchpoint on the list of threads.
In case the operation (iterating on the threads and doing enable/disable) fails in the middle, we rollback the already
enabled/disabled threads to their checkpointed states.  When all the threads succeed in enable/disable, we ask each thread
to finsih the transaction and commit the change of the debug state.

llvm-svn: 157858
2012-06-01 23:43:05 +00:00
Johnny Chen e48fb7d732 For hardware watchpoint enable/disable, in case the kernel call to set the revised debug state fails, we need to recover the local cache to the previous known state.
llvm-svn: 157778
2012-05-31 23:02:30 +00:00
Johnny Chen 6463720505 Add the capability to display the number of supported hardware watchpoints to the "watchpoint list" command.
Add default Process::GetWatchpointSupportInfo() impl which returns an error of "not supported".
Add "qWatchpointSupportInfo" packet to the gdb communication layer to support this, and modify TestWatchpointCommands.py to test it.

llvm-svn: 157345
2012-05-23 21:09:52 +00:00
Jason Molenda 94379541e2 Change lockdown API use in RNBSocket::ConnectToService.
<rdar://problem/10800927> 

llvm-svn: 156883
2012-05-16 00:36:21 +00:00
Johnny Chen bbc00939f2 Sanity check the return value from SBSCopyApplicationDisplayIdentifiers() before calling CFArrayGetCount() on it.
rdar://problem/11331867

llvm-svn: 156562
2012-05-10 19:24:41 +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 caca09b628 Patch from Filipe Cabecinhas.
llvm-svn: 155641
2012-04-26 17:11:01 +00:00
Greg Clayton 7afbe07a0d Patch from Filipe Cabecinhas.
llvm-svn: 155640
2012-04-26 17:09:38 +00:00
Jim Ingham 5d2735e502 Suspend program threads before sending the SIGSTOP & resuming, so other threads won't get into trouble while we are waiting for the SIGSTOP.
rdar://problem/11174834

llvm-svn: 155560
2012-04-25 17:45:26 +00:00
Greg Clayton 4463399b0d Added a new packet to our GDB remote protocol:
QListThreadsInStopReply
	
This GDB remote query command can enable added a "threads" key/value pair to all stop reply packets so that we always get a list of all threads in each stop reply packet. It increases performance if enabled (the reply to the "QListThreadsInStopReply" is "OK") by saving us from sending to command/reply pairs (the "qfThreadInfo" and "qsThreadInfo" packets), and also helps us keep the current process state up to date. 

llvm-svn: 154380
2012-04-10 03:22:03 +00:00
Greg Clayton 3c18cd3de1 Fixed the C++11 #defines that wrap std::weak_ptr to actually use std::weak_ptr.
llvm-svn: 154041
2012-04-04 20:03:33 +00:00
Johnny Chen 760c54e640 Fix a typo.
llvm-svn: 153301
2012-03-23 01:28:19 +00:00
Johnny Chen 3f8140a6d8 Make arm debugserver handle setting a watchpoint on, for example, (uint64_t)variable.
We do this by delegating to two available Watchpoint Register Pairs (wvr, wcr).  With
each pair handling the 4 bytes of (uint64_t)variable.

llvm-svn: 153300
2012-03-23 01:24:52 +00:00
Johnny Chen d45a9c32c2 Previous check-ins allow to hit the arm hardware watchpoint, with a workaound to handle the issue
that the inferior cannot execute past the watchpoint-triggering instruction.

The solution is disable the watchpoint before resuming the inferior and make it hardware single step;
when the inferior stops again due to single step, re-enable the watchpoint and disable the single step
to make the inferior able to continue again without obstacle.

rdar://problem/9667960

llvm-svn: 153273
2012-03-22 20:04:07 +00:00
Johnny Chen 8c9739eeda Fixed a bug with the r153228 check-in earlier today in that the cached watchpoint
member variables were not reset appropriately.

llvm-svn: 153239
2012-03-22 05:10:43 +00:00
Johnny Chen 7cb09b61b2 WIP snapshot of hardware watchpoints for arm. A simple watchpoint has triggered.
However, the debugserver cannot get past the instruction which triggered the watchpoint.
So a workaround is in place for the time being which disables the triggered watchpoint
before resuming.

Lots of commented out printf's remain in the source which needs to be cleaned up.

WIP rdar://problem/9667960

llvm-svn: 153228
2012-03-22 00:08:13 +00:00
Greg Clayton d64afba584 <rdar://problem/10434005>
Prepare LLDB to be built with C++11 by hiding all accesses to std::tr1 behind
macros that allows us to easily compile for either C++.

llvm-svn: 152698
2012-03-14 03:07:05 +00:00
Jason Molenda 08441ba45e Send an "OK" response to the "D" (detach) packet.
v. http://sourceware.org/gdb/current/onlinedocs/gdb/Packets.html#Packets

the detach packet is supposed to send a reply.

llvm-svn: 152671
2012-03-13 21:10:35 +00:00
Jason Molenda 16d7581fdb Pull in another plist from the old debugserver project.
Switch default compiler to clang.

llvm-svn: 152600
2012-03-13 01:23:54 +00:00
Greg Clayton 701a6b473d <rdar://problem/11030692>
SBProcess::PutSTDIN() was not working for a few builds on darwin when using debugserver. This is now fixed.

llvm-svn: 152569
2012-03-12 19:02:41 +00:00
Jim Ingham 329617a80a Make debugserver quieter about memory read errors.
<rdar://problem/10681220>

llvm-svn: 152438
2012-03-09 21:09:42 +00:00
Greg Clayton 85f3fa5411 <rdar://problem/11007934>
On darwin, if child process of process being debugged dies due to mach exception, the debugged process will die.

debugserver now only handles the mach exceptions for the task being debugged.

llvm-svn: 152291
2012-03-08 03:27:27 +00:00
Greg Clayton 9845a8d54d <rdar://problem/10840355>
Fixed STDERR to not be opened as readable. Also cleaned up some of the code that implemented the file actions as some of the code was using the wrong variables, they now use the right ones (in for stdin, out for stdout, err for stderr).

llvm-svn: 152102
2012-03-06 04:01:04 +00:00
Greg Clayton e16e2d02ea <rdar://problem/10986692>
Safeguard against building on next OS and run on current OS.

llvm-svn: 152077
2012-03-06 00:24:17 +00:00
Greg Clayton 3442d46eac <rdar://problem/10963899>
Allow debugserver to be built on a newer kernel and still allow debugging on
older kernels.

llvm-svn: 151827
2012-03-01 19:35:09 +00:00
Johnny Chen 2120e2bd73 Newly created threads are to inherit from the global debug state of the process.
llvm-svn: 151393
2012-02-24 21:13:45 +00:00
Johnny Chen 840305f1fd Add a class method HasWatchpointOccurred() to inspect the "method of debug entry" field
of the DSCR to check whether it was because of watchpoint occurred.

llvm-svn: 151333
2012-02-24 01:50:42 +00:00
Johnny Chen 6476fad669 Add comments about address word offset and the calculation of byte address select mask for WCR.
llvm-svn: 151305
2012-02-23 23:40:58 +00:00
Jason Molenda 42999a48f9 Change #ifdef markers around lockdown and SpringBoard
calls to dpeend on WITH_SPRINGBOARD and WITH_LOCKDOWN
instead of __arm__.  Add an RNBSocket::useFD method.

llvm-svn: 151119
2012-02-22 02:18:59 +00:00
Benjamin Kramer ff461fcf07 Remove a ton of implicit narrowing conversions for C++11 compatibility.
llvm-svn: 151071
2012-02-21 18:37:14 +00:00
Charles Davis b786e7d099 Pull side effects out of asserts. Fixes debugserver with NDEBUG defined.
llvm-svn: 151013
2012-02-21 00:53:12 +00:00
Greg Clayton 23a17953e7 Fixed an error with the 'G' packet on ARM when using the default GDB
register set where it could get an error when trying to restore the
fake "f0" - "f7" 12 byte float regs.

llvm-svn: 150781
2012-02-17 02:13:09 +00:00
Greg Clayton fb640c2d4c Kill our child process that we launch when we can't get the task_for_pid()
otherwise we will have a launched process stopped at the entry point and
it will get reparented when debugserver goes away and we won't be able to
kill the process later.

llvm-svn: 149622
2012-02-02 19:23:22 +00:00
Johnny Chen 17b4ea54bf Snapshot of initial work for ARM watchpoint support on the debugserver.
It is incomplete and untested; passes the compilation only.

llvm-svn: 147901
2012-01-11 00:35:13 +00:00
Greg Clayton 8ffc4f11ce Disable ARMDisassembler.framework support which was used for software single stepping.
llvm-svn: 147886
2012-01-10 22:33:56 +00:00
Jim Ingham 82283e8e91 Check the return value of GetBasicInfo before dereferencing it. <rdar://problem/10568492>
llvm-svn: 147883
2012-01-10 22:21:42 +00:00
Johnny Chen e7526b7daf http://llvm.org/bugs/show_bug.cgi?id=11715
comma at end of enumerator list

llvm-svn: 147633
2012-01-06 00:05:01 +00:00
Greg Clayton fc5dd29ef7 Always return a valid answer for qMemoryRegionInfo if the packet is supported.
We will return a valid range when possible and omit the "permissions" key
when the memory is not readable, writeable or executeable. This will help us
know the difference between an error back from this packet and unsupported,
from just "this address isn't in a valid region".

llvm-svn: 146394
2011-12-12 18:51:14 +00:00
Jim Ingham 703588540e Don't spam warnings about not being able to read memory at 0x0.
llvm-svn: 146271
2011-12-09 19:48:22 +00:00
Jason Molenda 10c480a461 Move CPUHasAVX() prototype out of an #ifdef block of code.
llvm-svn: 146198
2011-12-08 22:36:41 +00:00
Greg Clayton a64e446e4c <rdar://problem/10544202>
Fixed detection of AVX on darwin now that our kernel supports it.

llvm-svn: 146135
2011-12-08 03:19:36 +00:00
Jason Molenda a86588c4b0 Expose the DNBArchMachARM::DBG typedef, specify the type with the
class scoping in DumpDBGState()'s definiton.

llvm-svn: 146128
2011-12-08 01:59:17 +00:00
Johnny Chen 5700922945 Add a typedef for arm_debug_state_t as DBG. Plus some minor comment changes.
llvm-svn: 145978
2011-12-06 22:19:09 +00:00
Greg Clayton 46fb558df1 Added optional calls to lldb_private::Process for getting memory region info
from a process and hooked it up to the new packet that was recently added
to our GDB remote executable named debugserver. Now Process has the following
new calls:

virtual Error
Process::GetMemoryRegionInfo (lldb::addr_t load_addr, MemoryRegionInfo &range_info);

virtual uint32_t
GetLoadAddressPermissions (lldb::addr_t load_addr);

Only the first one needs to be implemented by subclasses that can add this
support.

Cleaned up the way the new packet was implemented in debugserver to be more
useful as an API inside debugserver. Also found an error where finding a region
for an address actually will pick up the next region that follows the address
in the query so we also need ot make sure that the address we requested the
region for falls into the region that gets returned.

llvm-svn: 144976
2011-11-18 07:03:08 +00:00
Jason Molenda 3dc8583c96 Remove the QAddressIsExecutable packet I added last night.
Add a more general purpose qMemoryRegionInfo packet which can
describe various attributes about a memory region.  Currently it
will return the start address, size, and permissions (read, write,
executable) for the memory region.  It may be possible to add
additional attributes in the future such as whether the region is
designated as stack memory or jitted code a la vmmap.

I still haven't implemented the lldb side of the code to use this
packet yet so there may be unexpected behavior - but the basic implementation looks
about right.  I'll hook it up to lldb soon and fix any problems that crop up.

llvm-svn: 144175
2011-11-09 08:03:56 +00:00
Jason Molenda 1f3966bebd Add "QAddressIsExecutable" packet to debugserver. Used to test
whether a given address is in an executable region of memory or
not.  I haven't written the lldb side that will use this packet it
hasn't been tested yet but it's a simple enough bit of code.

I want to have this feature available for the unwinder code.  When
we're stopped at an address with no valid symbol context, there are
a number of questions I'd like to ask --

  is the current pc value in an executable region (e.g. did they
  jump to unallocated/unexecutable memory?  we know how to unwind
  from here if so.)

  Is the stack pointer or the frame pointer the correct register
  to use to find the caller's saved pc value?

Once we're past the first frame we can trust things like eh_frame
and ABI unwind schemes but the first frame is challenging and having
a way to check potential addresses to see if they're executable or
not would help narrow down the possibilities a lot.

llvm-svn: 144074
2011-11-08 04:28:12 +00:00
Greg Clayton dce502ede0 Fixed the Xcode project building of LLVM to be a bit more user friendly:
- If you download and build the sources in the Xcode project, x86_64 builds
  by default using the "llvm.zip" checkpointed LLVM.
- If you delete the "lldb/llvm.zip" and the "lldb/llvm" folder, and build the
  Xcode project will download the right LLVM sources and build them from 
  scratch
- If you have a "lldb/llvm" folder already that contains a "lldb/llvm/lib"
  directory, we will use the sources you have placed in the LLDB directory.
  
Python can now be disabled for platforms that don't support it. 

Changed the way the libllvmclang.a files get used. They now all get built into
arch specific directories and never get merged into universal binaries as this
was causing issues where you would have to go and delete the file if you wanted
to build an extra architecture slice.

llvm-svn: 143678
2011-11-04 03:34:56 +00:00
Greg Clayton 490fbbe270 Enabled the "printf" attribute on all debugserver logging functions and fixed
the ensuing mayhem.

llvm-svn: 143244
2011-10-28 22:59:14 +00:00
Greg Clayton 708c1ab6f5 Python does some bad things to the signal masks in the current process and
then we spawn child processes (debugserver, etc) and those bad settings get 
inherited. We stop this from happening by correctly mucking with the posix
spawn attributes.

llvm-svn: 143176
2011-10-28 01:24:12 +00:00
Benjamin Kramer d34a329c68 Remove unused include of deprecated header.
llvm-svn: 142753
2011-10-23 16:31:38 +00:00
Johnny Chen a9b68f4dd6 Modify the delegation chain from MachThreadList -> MachThread -> DNBArchProtocol so that when
the watchpoint state is changed, not only does the change propagate to all the thread instances,
it also updates a global debug state, if chosen by the DNBArchProtocol derivative.

Once implemented, the DNBArchProtocol derivative, also makes sure that when new thread comes along,
it tries to inherit from the global debug state, if it is valid.

Modify TestWatchpointMultipleThreads.py to test this functionality.

llvm-svn: 140811
2011-09-29 21:48:52 +00:00
Johnny Chen 825ea37835 Fix a bug in the current MacOSX MachThreadList::EnableHardwareWatchpoint() impl so that
it enables the hardware watchpoint for all existing threads.  Add a test file for that.
Also fix MachThreadList::DisableHardwareWatchpoint().

llvm-svn: 140757
2011-09-29 01:20:42 +00:00
Johnny Chen 870f4f4213 The r139982 patch has a bug by using the constant "x86_AVX_STATE64".
Patch by Filipe.

llvm-svn: 140037
2011-09-19 18:54:01 +00:00
Greg Clayton 747bcb03d2 Convert lldb::ModuleSP to use an instrusive ref counted pointer.
We had some cases where getting the shared pointer for a module from
the global module list was causing a performance issue when debugging
with DWARF in .o files. Now that the module uses intrusive ref counts,
we can easily convert any pointer to a shared pointer.

llvm-svn: 139983
2011-09-17 06:21:20 +00:00
Greg Clayton 5631ebce5e Added more logging, and renamed FPR to FPU in a the register set/flavor enum.
llvm-svn: 139982
2011-09-17 05:59:37 +00:00
Greg Clayton 5299cc58cb Correctly handle the when we the 'G' packet fails. There were
cases where we were returning no error even though this packet
was failing.

llvm-svn: 139981
2011-09-17 05:47:55 +00:00
Johnny Chen 236888d026 Foe x86_64/i386, piggyback the hardware index of the fired watchpoint in the exception
data sent back to the debugger.  On the debugger side, use the opportunity during the
StopInfoMachException::CreateStopReasonWithMachException() method to set the hardware index
for the very watchpoint location.

llvm-svn: 139975
2011-09-17 01:05:03 +00:00
Johnny Chen 76abb3b559 Add comment regarding method call to DNBArchProtocol::NotifyException().
llvm-svn: 139800
2011-09-15 17:17:51 +00:00
Johnny Chen 88c1b77f74 Modify MachThread::NotifyException() to allow the arch specific protocol to process
the passed in (MachException::Data &)exc first before possible reassignment of the
member m_stop_exception with exc.  This allows lldb to stop at the watchpoint of
a simple test program.

llvm-svn: 139767
2011-09-15 01:12:15 +00:00
Johnny Chen 3ba42283f4 Update I386 DNB impl to fix the same errors as DNBArchImplX86_64: ('==' instead of '=') and (by value instead of by reference).
llvm-svn: 139667
2011-09-13 23:43:18 +00:00
Johnny Chen 3c53258964 Watchpoint WIP:
o WatchpointLocationList:
  Add a GetListMutex() method.
o WatchpointLocation:
  Fix Dump() method where there was an extra % in the format string.
o Target.cpp:
  Add implementation to CreateWatchpointLocation() to create and enable a watchpoint.

o DNBArchImplX86_64.cpp:
  Fix bugs in SetWatchpoint()/ClearWatchpoint() where '==' was used, instead of '=',
  to assign/reset the data break address to a debug register.

  Also fix bugs where a by reference debug_state should have been used, not by value.

llvm-svn: 139666
2011-09-13 23:29:31 +00:00
Johnny Chen 67b20bbbee Reset the debug status register, only if necessary, before we resume,
which saves unnecessary traffic to the kernel.

llvm-svn: 139410
2011-09-09 21:11:25 +00:00
Enrico Granata 13f1d56170 Basic infrastructure code to exploit malloc stack logging as available on Mac OS X to track the allocation history of pointers on the target process
llvm-svn: 139337
2011-09-09 00:04:24 +00:00
Johnny Chen f8f68a132a Added comments about exception code.
llvm-svn: 139294
2011-09-08 17:07:22 +00:00
Johnny Chen af3d4af4eb Add logic to the DNBArchImplX86_64/DNBArchImplI386::NotifyException() callback method
in order to distinguish the real single step exception from a watchpoint exception
which uses the same exc_type of EXC_BREAKPOINT and exc_code of EXC_I386_SGL.

This is done by checking the debug status register to find out whether the watchpoint
data break event has fired, and, if yes, stuff the data break address into the exception's
exc_sub_code field on the debugserver side for lldb to consume on the other end.

llvm-svn: 139274
2011-09-08 01:16:50 +00:00
Johnny Chen ec6a2d3160 Add logic to MachThreadList::GetThreadID() for the use case of setting a watchpoint
(MachThreadList::EnableHardwareWatchpoint()) where the watchpoint is not associated
with a thread and the current thread, if set, is returned, otherwise we return the
first thread.

Plus minor change to RNBRemote::HandlePacket_z() to use the existing macros to check
the validity of break_id/watch_id.

llvm-svn: 139246
2011-09-07 19:03:50 +00:00
Johnny Chen 9d814e0dd2 Minor change: compare the return val of DNBWatchpointSet() against INVALID_NUB_WATCH_ID
to determine its validity.

llvm-svn: 139209
2011-09-07 00:09:23 +00:00
Johnny Chen 86f97a417d DNBBreakpoint::SetEnabled() should take a bool, not a uint32_t, as its input argument.
Plus for watchpoint related functions, add new macros INVALID_NUB_WATCH_ID and
NUB_WATCH_ID_IS_VALID and use them, instead.

llvm-svn: 139163
2011-09-06 19:52:49 +00:00
Johnny Chen 1bd08dd878 Watchpoint work in progress:
Add a virtual method GetHardwareWatchpointHit() to the DNBArchProtocol base class
which consults the architecture to return the watchpoint hit; otherwise return an
invalid index.

Add impl. of the method to X86_64 and I386 subclasses, plus reset the debug status
register before we resume execution of the inferior thread.

llvm-svn: 139034
2011-09-02 21:13:07 +00:00
Johnny Chen 8d31e5eac5 Renaming: from IsVacantWatchpoint() to IsWatchpointVacant().
llvm-svn: 138907
2011-08-31 21:44:56 +00:00
Johnny Chen a18460635a Renamed the helper method to ClearWatchpointHits() for clarity of its purpose.
llvm-svn: 138899
2011-08-31 21:19:39 +00:00
Johnny Chen e0d4208a8b Add a couple of helper methods to check/clear the debug status register
which contains the watchpoint hit information.

llvm-svn: 138881
2011-08-31 19:05:55 +00:00
Johnny Chen 205395e7e0 Fix the shift amount applied to size_and_rw_bits() for debug control register,
which did not take into account the hardware index.

llvm-svn: 138867
2011-08-31 17:51:43 +00:00
Johnny Chen edce1f3f7d Update comments.
llvm-svn: 138863
2011-08-31 17:29:29 +00:00
Johnny Chen 0399ec26c0 Watchpoint work in progress: add helper methods to DNB arch impl for I386 to implment Enable/DisableHardwareWatchpoint.
llvm-svn: 138847
2011-08-31 00:50:10 +00:00
Johnny Chen ebb9bb4175 Watchpoint work in progress: add helper methods to DNB arch impl for X86_64 to implment Enable/DisableHardwareWatchpoint.
llvm-svn: 138844
2011-08-31 00:27:53 +00:00
Johnny Chen 2cf3222029 Add stubs of incomplete watchpoint implementation with "FIXME" markers.
llvm-svn: 138790
2011-08-30 01:30:03 +00:00
Greg Clayton 9414a367a1 Added the debug registers for i386 and x86_64 in preparation for watchpoints.
llvm-svn: 138770
2011-08-29 21:49:22 +00:00
Johnny Chen c0705f0b4f Remove an extra break statement.
llvm-svn: 138763
2011-08-29 21:01:50 +00:00
Johnny Chen 64503c8168 To silence the static analyzer.
llvm-svn: 137326
2011-08-11 19:03:44 +00:00
Johnny Chen d14651afaf To silence the static analyzer.
llvm-svn: 137319
2011-08-11 18:21:06 +00:00
Johnny Chen 3c24a17c7c Incremental fixes of issues found by Xcode static analyzer.
llvm-svn: 137288
2011-08-11 00:43:20 +00:00
Jim Ingham 478235d882 In the case where we are trying to resume a thread all the way to 0, if we get
llvm-svn: 137287
2011-08-11 00:38:52 +00:00
Johnny Chen 119fd6c03b Ignore the static analyzer, instead; and add comment why.
llvm-svn: 137275
2011-08-10 23:19:32 +00:00
Johnny Chen 2fe7dd445b Incremental fixes of issues found by Xcode static analyzer.
llvm-svn: 137267
2011-08-10 23:01:39 +00:00
Sean Callanan 677f2a263a Fixed a problem where the HasAVX() code in
debugserver did not back up %ebx/%rbx, even
though it was being clobbered by the CPUID
instruction.

llvm-svn: 137131
2011-08-09 18:10:15 +00:00
Greg Clayton dee205a31e The "bool HasAVX()" function doesn't backup and restore the
cpu registers it uses and it crashes the release version of 
debugserver. We just get lucky in Debug builds. Until this 
is fixed I am disabling AVX detection to avoid the crashes. 

llvm-svn: 137113
2011-08-09 05:27:14 +00:00
Greg Clayton c235ac763f Added some logging and did some member renaming.
llvm-svn: 137112
2011-08-09 05:20:29 +00:00
Jason Molenda 26a27fb832 RNBRemote.cpp, RNBRemote.h: Add a new qGetPid packet which returns
the pid of the process currently being debugged by debugserer in
hex, or 0 if unavailable.

This is effectively the same as the qC packet but that packet is
not clear in either its documentation or implementation (in gdb et al)
as to whether it is intended to return a pid or a thread id.  qGetPid
is unambiguous.

If qGetPid is unimplemented in the remote debugserver, the debugger may
try qC and see what kind of value is returned..

llvm-svn: 136055
2011-07-26 03:34:52 +00:00
Jim Ingham 9411ddb65f If we are telling only one thread to run in debugserver, and that thread has been suspended from outside
the debugger, resume it before running so we will actually make progress.

llvm-svn: 135655
2011-07-21 01:54:41 +00:00
Sean Callanan c4ffe37cf1 Added support for dynamic detection of AVX, and
fixed a few bugs that revealed.  Now the "register
read" command should show AVX registers
(ymm0-ymm15) on Mac OS X platforms that support
them.

When testing this on Mac OS X, run debugserver
manually, like this:

debugserver --native-regs localhost:1111 /path/to/executable

Then

lldb /path/to/executable
...
(lldb) process connect connect://localhost:1111

llvm-svn: 135331
2011-07-16 00:49:19 +00:00
Greg Clayton c749eb89ad Added the ability to see block variables when looking up addresses
with the "target modules lookup --address <addr>" command. The variable
ID's, names, types, location for the address, and declaration is
displayed.

This can really help with crash logs since we get, on MacOSX at least,
the registers for the thread that crashed so it is often possible to
figure out some of the variable contents. 

llvm-svn: 134886
2011-07-11 05:12:02 +00:00
Jason Molenda 4e0c94be76 Handle the possible case where the process launch failed
but we don't have an error message.

llvm-svn: 134662
2011-07-08 00:00:32 +00:00
Jason Molenda d8a2aaa472 Add support for a QEnvironmentHexEncoded packet which takes its
arguments in hex-encoded form instead of the old QEnvironment packet
which takes them as plain-text strings.  Environment variables
containing remote protocol special chars like '#' would fail to set
with QEnvironment.

llvm-svn: 133857
2011-06-25 01:55:21 +00:00
Greg Clayton 8d400e1750 Fixed an issue in the EmulateInstructionARM there the IT opcode was trying to
parse NOP instructions. I added the new table entries for the NOP for the
plain NOP, Yield, WFE, WFI, and SEV variants. Modified the opcode emulation
function EmulateInstructionARM::EmulateMOVRdSP(...) to notify us when it is
creating a frame. Also added an abtract way to detect the frame pointer 
register for both the standard ARM ABI and for Darwin.

Fixed GDBRemoteRegisterContext::WriteAllRegisterValues(...) to correctly be
able to individually write register values back if case the 'G' packet is
not implemented or returns an error.

Modified the StopInfoMachException to "trace" stop reasons. On ARM we currently
use the BVR/BCR register pairs to say "stop when the PC is not equal to the 
current PC value", and this results in a EXC_BREAKPOINT mach exception that
has 0x102 in the code.

Modified debugserver to create the short option string from long option
definitions to make sure it doesn't get out of date. The short option string
was missing many of the newer short option values due to a modification of
the long options defs, and not modifying the short option string.

llvm-svn: 131911
2011-05-23 18:04:09 +00:00
Greg Clayton f3ef3d2af9 Added new lldb_private::Process memory read/write functions to stop a bunch
of duplicated code from appearing all over LLDB:

lldb::addr_t
Process::ReadPointerFromMemory (lldb::addr_t vm_addr, Error &error);

bool
Process::WritePointerToMemory (lldb::addr_t vm_addr, lldb::addr_t ptr_value, Error &error);

size_t
Process::ReadScalarIntegerFromMemory (lldb::addr_t addr, uint32_t byte_size, bool is_signed, Scalar &scalar, Error &error);

size_t
Process::WriteScalarToMemory (lldb::addr_t vm_addr, const Scalar &scalar, uint32_t size, Error &error);

in lldb_private::Process the following functions were renamed:

From:
uint64_t
Process::ReadUnsignedInteger (lldb::addr_t load_addr, 
                              size_t byte_size,
                              Error &error);

To:
uint64_t
Process::ReadUnsignedIntegerFromMemory (lldb::addr_t load_addr, 
                                        size_t byte_size,
                                        uint64_t fail_value, 
                                        Error &error);

Cleaned up a lot of code that was manually doing what the above functions do
to use the functions listed above.

Added the ability to get a scalar value as a buffer that can be written down
to a process (byte swapping the Scalar value if needed):

uint32_t 
Scalar::GetAsMemoryData (void *dst,
                        uint32_t dst_len, 
                        lldb::ByteOrder dst_byte_order,
                        Error &error) const;

The "dst_len" can be smaller that the size of the scalar and the least 
significant bytes will be written. "dst_len" can also be larger and the
most significant bytes will be padded with zeroes. 

Centralized the code that adds or removes address bits for callable and opcode
addresses into lldb_private::Target:

lldb::addr_t
Target::GetCallableLoadAddress (lldb::addr_t load_addr, AddressClass addr_class) const;

lldb::addr_t
Target::GetOpcodeLoadAddress (lldb::addr_t load_addr, AddressClass addr_class) const;

All necessary lldb_private::Address functions now use the target versions so
changes should only need to happen in one place if anything needs updating.

Fixed up a lot of places that were calling :

addr_t
Address::GetLoadAddress(Target*);

to call the Address::GetCallableLoadAddress() or Address::GetOpcodeLoadAddress()
as needed. There were many places in the breakpoint code where things could
go wrong for ARM if these weren't used.

llvm-svn: 131878
2011-05-22 22:46:53 +00:00
Greg Clayton cff851ab33 Added functions to lldb_private::Address to set an address from a load address
and set the address as an opcode address or as a callable address. This is
needed in various places in the thread plans to make sure that addresses that
might be found in symbols or runtime might already have extra bits set (ARM/Thumb).
The new functions are:

bool
Address::SetCallableLoadAddress (lldb::addr_t load_addr, Target *target);

bool
Address::SetOpcodeLoadAddress (lldb::addr_t load_addr, Target *target);

SetCallableLoadAddress will initialize a section offset address if it can,
and if so it might possibly set some bits in the address to make the address
callable (bit zero might get set for ARM for Thumb functions).

SetOpcodeLoadAddress will initialize a section offset address using the
specified target and it will strip any special address bits if needed 
depending on the target.

Fixed the ABIMacOSX_arm::GetArgumentValues() function to require arguments
1-4 to be in the needed registers (previously this would incorrectly fallback
to the stack) and return false if unable to get the register values. The
function was also modified to first look for the generic argument registers
and then fall back to finding the registers by name.

Fixed the objective trampoline handler to use the new Address::SetOpcodeLoadAddress
function when needed to avoid address mismatches when trying to complete 
steps into objective C methods. Make similar fixes inside the
AppleThreadPlanStepThroughObjCTrampoline::ShouldStop() function.

Modified ProcessGDBRemote::BuildDynamicRegisterInfo(...) to be able to deal with
the new generic argument registers.

Modified RNBRemote::HandlePacket_qRegisterInfo() to handle the new generic
argument registers on the debugserver side.

Modified DNBArchMachARM::NumSupportedHardwareBreakpoints() to be able to 
detect how many hardware breakpoint registers there are using a darwin sysctl.
Did the same for hardware watchpoints in 
DNBArchMachARM::NumSupportedHardwareWatchpoints().

llvm-svn: 131834
2011-05-22 04:32:55 +00:00
Greg Clayton 9a8fa9161f Added generic register numbers for simple ABI argument registers and defined
the appropriate registers for arm and x86_64. The register names for the
arguments that are the size of a pointer or less are all named "arg1", "arg2",
etc. This allows you to read these registers by name:

(lldb) register read arg1 arg2 arg3
...

You can also now specify you want to see alternate register names when executing
the read register command:

(lldb) register read --alternate
(lldb) register read -A

llvm-svn: 131376
2011-05-15 04:12:07 +00:00
Jim Ingham 1a414cfb5d Change an unconditional log to a conditional one.
llvm-svn: 131079
2011-05-09 01:06:45 +00:00
Greg Clayton c4103b3c2f Fixed not being able to launch the i386 slice of a universal binary by adding
a new "QLaunchArch:<arch-name>" where <arch-name> is the architecture name.
This allows us to remotely launch a debugserver and then set the architecture
for the binary we will launch.

llvm-svn: 131064
2011-05-08 04:53:50 +00:00
Greg Clayton effe5c956b Added new OptionGroup classes for UInt64, UUID, File and Boolean values.
Removed the "image" command and moved it to "target modules". Added an alias
for "image" to "target modules". 

Added some new target commands to be able to add and load modules to a target:
(lldb) target modules add <path>
(lldb) target modules load [--file <path>] [--slide <offset>] [<sect-name> <sect-load-addr> ...]

So you can load individual sections without running a target:

(lldb) target modules load --file /usr/lib/libSystem.B.dylib __TEXT 0x7fccc80000 __DATA 0x1234000000

Or you can rigidly slide an entire shared library:

(lldb) target modules load --file /usr/lib/libSystem.B.dylib --slid 0x7fccc80000

This should improve bare board debugging when symbol files need to be slid around manually.

llvm-svn: 130796
2011-05-03 22:09:39 +00:00
Greg Clayton 8b82f087a0 Moved the execution context that was in the Debugger into
the CommandInterpreter where it was always being used.

Make sure that Modules can track their object file offsets correctly to
allow opening of sub object files (like the "__commpage" on darwin).

Modified the Platforms to be able to launch processes. The first part of this
move is the platform soon will become the entity that launches your program
and when it does, it uses a new ProcessLaunchInfo class which encapsulates
all process launching settings. This simplifies the internal APIs needed for
launching. I want to slowly phase out process launching from the process
classes, so for now we can still launch just as we used to, but eventually
the platform is the object that should do the launching.

Modified the Host::LaunchProcess in the MacOSX Host.mm to correctly be able
to launch processes with all of the new eLaunchFlag settings. Modified any
code that was manually launching processes to use the Host::LaunchProcess
functions.

Fixed an issue where lldb_private::Args had implicitly defined copy 
constructors that could do the wrong thing. This has now been fixed by adding
an appropriate copy constructor and assignment operator.

Make sure we don't add empty ModuleSP entries to a module list.

Fixed the commpage module creation on MacOSX, but we still need to train
the MacOSX dynamic loader to not get rid of it when it doesn't have an entry
in the all image infos.

Abstracted many more calls from in ProcessGDBRemote down into the 
GDBRemoteCommunicationClient subclass to make the classes cleaner and more
efficient.

Fixed the default iOS ARM register context to be correct and also added support
for targets that don't support the qThreadStopInfo packet by selecting the
current thread (only if needed) and then sending a stop reply packet.

Debugserver can now start up with a --unix-socket (-u for short) and can 
then bind to port zero and send the port it bound to to a listening process
on the other end. This allows the GDB remote platform to spawn new GDB server
instances (debugserver) to allow platform debugging.

llvm-svn: 129351
2011-04-12 05:54:46 +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
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
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
Sean Callanan c530af05fe Added AVX support to the Intel portion of debugserver. AVX
autodetection is not yet implemented, but the structures and
register reading/writing code are there.

llvm-svn: 128111
2011-03-22 21:45:30 +00:00
Greg Clayton fc36f79170 Abtracted the innards of lldb-core away from the SB interface. There was some
overlap in the SWIG integration which has now been fixed by introducing
callbacks for initializing SWIG for each language (python only right now).
There was also a breakpoint command callback that called into SWIG which has
been abtracted into a callback to avoid cross over as well.

Added a new binary: lldb-platform

This will be the start of the remote platform that will use as much of the 
Host functionality to do its job so it should just work on all platforms.
It is pretty hollowed out for now, but soon it will implement a platform
using the GDB remote packets as the transport.

llvm-svn: 128053
2011-03-22 01:14:58 +00:00
Greg Clayton 7a5388bf75 Split all of the core of LLDB.framework/lldb.so into a
static archive that can be linked against. LLDB.framework/lldb.so
exports a very controlled API. Splitting the API into a static
library allows other tools (debugserver for now) to use the power
of the LLDB debugger core, yet not export it as its API is not
portable or maintainable. The Host layer and many of the other
internal only APIs can now be statically linked against.

Now LLDB.framework/lldb.so links against "liblldb-core.a" instead
of compiling the .o files only for the shared library. This fix
is only for compiling with Xcode as the Makefile based build already
does this.

The Xcode projecdt compiler has been changed to LLVM. Anyone using
Xcode 3 will need to manually change the compiler back to GCC 4.2,
or update to Xcode 4.

llvm-svn: 127963
2011-03-20 04:57:14 +00:00
Johnny Chen 725269a0b4 If the user sets a working directory path using "process launch -w <path>", honor that dir path;
otherwise, use the thing the debugserver is started with.

Fixed rdar://problem/9056462
The process launch flag '-w' for setting the current working directory not working?

llvm-svn: 126537
2011-02-26 01:36:13 +00:00
Greg Clayton 7133762232 Fixed CommandReturnObject::SetImmediateErrorFile() to set the correct stream.
Modifed lldb_private::Process to be able to handle connecting to a remote 
target that isn't running a process. This leaves lldb_private::Process in the
eStateConnected state from which we can then do an attach or launch.

Modified ProcessGDBRemote to be able to set stdin, stdout, stderr, working
dir, disable ASLR and a few other settings down by using new GDB remote 
packets. This allows us to keep all of our current launch flags and settings
intact and still be able to communicate them over to the remote GDB server.
Previously these were being sent as arguments to the debugserver binary that
we were spawning. Also modified ProcessGDBRemote to handle losing connection
to the remote GDB server and always exit immediately. We do this by watching
the lldb_private::Communication event bit for the read thread exiting in the
ProcessGDBRemote async thread.

Added support for many of the new 'Q' packets for setting stdin, stdout,
stderr, working dir and disable ASLR to the GDBRemoteCommunication class for
easy accesss.

Modified debugserver for all of the new 'Q' packets and also made it so that
debugserver always exists if it loses connection with the remote debugger.

llvm-svn: 126444
2011-02-24 22:24:29 +00:00
Greg Clayton 93d3c8339c The DynamicLoader plug-in instance now lives up in lldb_private::Process where
it should live and the lldb_private::Process takes care of managing the 
auto pointer to the dynamic loader instance.

Also, now that the ArchSpec contains the target triple, we are able to 
correctly set the Target architecture in DidLaunch/DidAttach in the subclasses,
and then the lldb_private::Process will find the dynamic loader plug-in 
by letting the dynamic loader plug-ins inspect the arch/triple in the target.

So now the ProcessGDBRemote plug-in is another step closer to be purely 
process/platform agnostic.

I updated the ProcessMacOSX and the ProcessLinux plug-ins accordingly.

llvm-svn: 125650
2011-02-16 04:46:07 +00:00