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* Change search order of target definition files.Ewan Crawford2015-06-301-9/+13
| | | | | | | | | | | | Make the python target definition file have highest priority so that we can set the remote stub breakpoint pc offset using it. Reviewers: clayborg Subscribers: ted, deepak2427, lldb-commits Differential revision: http://reviews.llvm.org/D10775 llvm-svn: 241063
* More packet reduction when debugging with GDB server.Greg Clayton2015-06-291-8/+154
| | | | | | | | | - Avoid sending the qfThreadInfo, qsThreadInfo packets if we have a stop reply packet with the threads already (save 2 round trip packets) - Include the qname, qserial and qkind in the JSON info - Report the qname, qserial and qkind to the thread so it can cache it to avoid many packets on MacOSX and iOS - Don't clear all discoverable settings when we exec, just the ones we need to saves 1-5 packets for each exec. llvm-svn: 240988
* XML register info fixEwan Crawford2015-06-261-3/+3
| | | | | | | | | | | | | | | | | | There are a couple of bugs in the XML register info handling which this patch fixes: + conflicting variable names in lambda, both capture list and parameters contains a variable called 'name'. + prev_reg_num, which sets the register number, should be incremented after each register is processed. + Windows errors regarding empty strings and the 'xi:' prefix disappearing from 'xi:include' node name. Reviewers: clayborg Subscribers: lldb-commits, deepak2427 Differential Revision: http://reviews.llvm.org/D10731 llvm-svn: 240768
* Resubmitting 240466 after fixing the linux test suite failures.Greg Clayton2015-06-251-214/+422
| | | | | | | | | | | | | | | A few extras were fixed - Symbol::GetAddress() now returns an Address object, not a reference. There were places where people were accessing the address of a symbol when the symbol's value wasn't an address symbol. On MacOSX, undefined symbols have a value zero and some places where using the symbol's address and getting an absolute address of zero (since an Address object with no section and an m_offset whose value isn't LLDB_INVALID_ADDRESS is considered an absolute address). So fixing this required some changes to make sure people were getting what they expected. - Since some places want to access the address as a reference, I added a few new functions to symbol: Address &Symbol::GetAddressRef(); const Address &Symbol::GetAddressRef() const; Linux test suite passes just fine now. <rdar://problem/21494354> llvm-svn: 240702
* Proper handling of QNonStop packet response.Ewan Crawford2015-06-241-1/+1
| | | | | | Turn non-stop mode off if reply to QNonStop packet isn't an OK. llvm-svn: 240546
* Implement the "qSymbol" packet in order to be able to read queue information ↵Greg Clayton2015-06-231-0/+45
| | | | | | | | | | | | | | in debugserver and return the info in the stop reply packets. A "qSymbol::" is sent when shared libraries have been loaded by hooking into the Process::ModulesDidLoad() function from within ProcessGDBRemote. This function was made virtual so that the ProcessGDBRemote version is called, which then first calls the Process::ModulesDidLoad(), and then it queries for any symbol lookups that the remote GDB server might want to do. This allows debugserver to request the "dispatch_queue_offsets" symbol so that it can read the queue name, queue kind and queue serial number and include this data as part of the stop reply packet. Previously each thread would have to do 3 memory reads in order to read the queue name. This is part of reducing the number of packets that are sent between LLDB and the remote GDB server. <rdar://problem/21494354> llvm-svn: 240466
* Add handling of async notify packetsEwan Crawford2015-06-231-53/+127
| | | | | | | | | | | | | | | | This patch adds a listener to the AynscThread in ProcessGDBRemote, specifically for dealing with any async notification packets. From the broadcast our listener receives we can process the notify packet from the event data. A handler function then sets the thread stop info from this packet, and updates lldb by setting the process private state to stopped. Allowing the async thread to go back to sleep and getting the main thread to handle the implications of a state change. When sending a vCont in nonstop mode we also get a different reply from all-stop mode, an OK response as opposed to a stop reply. So a condition is added to handle this and set the process state without the stop-reply data. Reviewers: clayborg Subscribers: lldb-commits, labath, ted, aidan.dodds, deepak2427 Differential Revision: http://reviews.llvm.org/D10544 llvm-svn: 240397
* Revert "Reduced packet counts to the remote GDB server where possible."Chaoren Lin2015-06-231-417/+200
| | | | | | | | | | This reverts commit 0cc0745ea9c68d7fdcadc9904cee3f13c96dae60. Due to breakage on Linux build bot: http://lab.llvm.org:8011/builders/lldb-x86_64-ubuntu-14.04-cmake/builds/3436 llvm-svn: 240371
* Reduced packet counts to the remote GDB server where possible.Greg Clayton2015-06-221-200/+417
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have been working on reducing the packet count that is sent between LLDB and the debugserver on MacOSX and iOS. Our approach to this was to reduce the packets required when debugging multiple threads. We currently make one qThreadStopInfoXXXX call (where XXXX is the thread ID in hex) per thread except the thread that stopped with a stop reply packet. In order to implement multiple thread infos in a single reply, we need to use structured data, which means JSON. The new jThreadsInfo packet will attempt to retrieve all thread infos in a single packet. The data is very similar to the stop reply packets, but packaged in JSON and uses JSON arrays where applicable. The JSON output looks like: [ { "tid":1580681, "metype":6, "medata":[2,0], "reason":"exception", "qaddr":140735118423168, "registers": { "0":"8000000000000000", "1":"0000000000000000", "2":"20fabf5fff7f0000", "3":"e8f8bf5fff7f0000", "4":"0100000000000000", "5":"d8f8bf5fff7f0000", "6":"b0f8bf5fff7f0000", "7":"20f4bf5fff7f0000", "8":"8000000000000000", "9":"61a8db78a61500db", "10":"3200000000000000", "11":"4602000000000000", "12":"0000000000000000", "13":"0000000000000000", "14":"0000000000000000", "15":"0000000000000000", "16":"960b000001000000", "17":"0202000000000000", "18":"2b00000000000000", "19":"0000000000000000", "20":"0000000000000000"}, "memory":[ {"address":140734799804592,"bytes":"c8f8bf5fff7f0000c9a59e8cff7f0000"}, {"address":140734799804616,"bytes":"00000000000000000100000000000000"} ] } ] It contains an array of dicitionaries with all of the key value pairs that are normally in the stop reply packet. Including the expedited registers. Notice that is also contains expedited memory in the "memory" key. Any values in this memory will get included in a new L1 cache in lldb_private::Process where if a memory read request is made and that memory request fits into one of the L1 memory cache blocks, it will use that memory data. If a memory request fails in the L1 cache, it will fall back to the L2 cache which is the same block sized caching we were using before these changes. This allows a process to expedite memory that you are likely to use and it reduces packet count. On MacOSX with debugserver, we expedite the frame pointer backchain for a thread (up to 256 entries) by reading 2 pointers worth of bytes at the frame pointer (for the previous FP and PC), and follow the backchain. Most backtraces on MacOSX and iOS now don't require us to read any memory! We will try these packets out and if successful, we should port these to lldb-server in the near future. <rdar://problem/21494354> llvm-svn: 240354
* Fetch object file load address if it isn't specified by the linkerTamas Berghammer2015-06-181-0/+41
| | | | | | Differential revision: http://reviews.llvm.org/D10490 llvm-svn: 240052
* Add Read Thread to GDBRemoteCommunicationEwan Crawford2015-06-161-0/+6
| | | | | | | | | | | | | | | | In order to support asynchronous notifications for non-stop mode this patch adds a packet read thread. This is done by implementing AppendBytesToCache() from the communications class, which continually reads packets into a packet queue. To initialize this thread StartReadThread() must be called by the client, so since llgs and platform tools use the GBDRemoteCommunicatos code they must also call this function as well as ProcessGDBRemote. When the read thread detects an async notify packet it broadcasts this event, where the matching listener will be added in the next non-stop patch. Packets are now accessed by calling ReadPacket() which pops a packet from the queue, instead of using WaitForPacketWithTimeoutMicroSecondsNoLock() Reviewers: vharron, clayborg Subscribers: lldb-commits, labath, ted, domipheus, deepak2427 Differential Revision: http://reviews.llvm.org/D10085 llvm-svn: 239824
* Refactor many file functions to use FileSpec over strings.Chaoren Lin2015-05-291-42/+41
| | | | | | | | | | | | | | | | | Summary: This should solve the issue of sending denormalized paths over gdb-remote if we stick to GetPath(false) in GDBRemoteCommunicationClient, and let the server handle any denormalization. Reviewers: ovyalov, zturner, vharron, clayborg Reviewed By: clayborg Subscribers: tberghammer, emaste, lldb-commits Differential Revision: http://reviews.llvm.org/D9728 llvm-svn: 238604
* Don't #include "lldb-python.h" from anywhere.Zachary Turner2015-05-291-1/+0
| | | | | | | | | | | | | Since interaction with the python interpreter is moving towards being more isolated, we won't be able to include this header from normal files anymore, all includes of it should be localized to the python library which will live under source/bindings/API/Python after a future patch. None of the files that were including this header actually depended on it anyway, so it was just a dead include in every single instance. llvm-svn: 238581
* Report inferior SIGSEGV as a signal instead of an exception on linuxPavel Labath2015-05-291-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: Previously, we reported inferior receiving SIGSEGV (or SIGILL, SIGFPE, SIGBUS) as an "exception" to LLDB, presumably to match OSX behaviour. Beside the fact that we were basically lying to the user, this was also causing problems with inferiors which handle SIGSEGV by themselves, since LLDB was unable to reinject this signal back into the inferior. This commit changes LLGS to report SIGSEGV as a signal. This has necessitated some changes in the test-suite, which had previously used eStopReasonException to locate threads that crashed. Now it uses platform-specific logic, which in the case of linux searches for eStopReasonSignaled with signal=SIGSEGV. I have also added the ability to set the description of StopInfoUnixSignal using the description field of the gdb-remote packet. The linux stub uses this to display additional information about the segfault (invalid address, address access protected, etc.). Test Plan: All tests pass on linux and osx. Reviewers: ovyalov, clayborg, emaste Subscribers: emaste, lldb-commits Differential Revision: http://reviews.llvm.org/D10057 llvm-svn: 238549
* Add a new "qEcho" packet with the following format:Greg Clayton2015-05-291-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | qEcho:%s where '%s' is any valid string. The response to this packet is the exact packet itself with no changes, just reply with what you received! This will help us to recover from packets timing out much more gracefully. Currently if a packet times out, LLDB quickly will hose up the debug session. For example, if we send a "abc" packet and we expect "ABC" back in response, but the "abc" command takes longer than the current timeout value this will happen: --> "abc" <-- <<<error: timeout>>> Now we want to send "def" and get "DEF" back: --> "def" <-- "ABC" We got the wrong response for the "def" packet because we didn't sync up with the server to clear any current responses from previously issues commands. The fix is to modify GDBRemoteCommunication::WaitForPacketWithTimeoutMicroSecondsNoLock() so that when it gets a timeout, it syncs itself up with the client by sending a "qEcho:%u" where %u is an increasing integer, one for each time we timeout. We then wait for 3 timeout periods to sync back up. So the above "abc" session would look like: --> "abc" <-- <<<error: timeout>>> 1 second --> "qEcho:1" <-- <<<error: timeout>>> 1 second <-- <<<error: timeout>>> 1 second <-- "abc" <-- "qEcho:1" The first timeout is from trying to get the response, then we know we timed out and we send the "qEcho:1" packet and wait for 3 timeout periods to get back in sync knowing that we might actually get the response for the "abc" packet in the mean time... In this case we would actually succeed in getting the response for "abc". But lets say the remote GDB server is deadlocked and will never response, it would look like: --> "abc" <-- <<<error: timeout>>> 1 second --> "qEcho:1" <-- <<<error: timeout>>> 1 second <-- <<<error: timeout>>> 1 second <-- <<<error: timeout>>> 1 second We then disconnect and say we lost connection. We might also have a bad GDB server that just dropped the "abc" packet on the floor. We can still recover in this case and it would look like: --> "abc" <-- <<<error: timeout>>> 1 second --> "qEcho:1" <-- "qEcho:1" Then we know our remote GDB server is still alive and well, and it just dropped the "abc" response on the floor and we can continue to debug. <rdar://problem/21082939> llvm-svn: 238530
* Change ProcessGDBRemote last stop packet to a container.Ewan Crawford2015-05-271-9/+37
| | | | | | | | | | | | | | | In ProcessGDBRemote we currently have a single packet, m_last_stop_packet, used to set the thread stop info. However in non-stop mode we can receive several stop reply packets in a sequence for different threads. As a result we need to use a container to hold them before they are processed. This patch also changes the return type of CheckPacket() so we can detect async notification packets. Reviewers: clayborg Subscribers: labath, ted, deepak2427, lldb-commits Differential Revision: http://reviews.llvm.org/D9853 llvm-svn: 238323
* Added XML to the host layer.Greg Clayton2015-05-261-560/+335
| | | | | | | | | | | | We know have on API we should use for all XML within LLDB in XML.h. This API will be easy back the XML parsing by different libraries in case libxml2 doesn't work on all platforms. It also allows the only place for #ifdef ...XML... to be in XML.h and XML.cpp. The API is designed so it will still compile with or without XML support and there is a static function "bool XMLDocument::XMLEnabled()" that can be called to see if XML is currently supported. All APIs will return errors, false, or nothing when XML isn't enabled. Converted all locations that used XML over to using the host XML implementation. Added target.xml support to debugserver. Extended the XML register format to work for LLDB by including extra attributes and elements where needed. This allows the target.xml to replace the qRegisterInfo packets and allows us to fetch all register info in a single packet. <rdar://problem/21090173> llvm-svn: 238224
* Did some cleanup to stop us from leaking Pipe file descriptors.Greg Clayton2015-05-231-4/+3
| | | | | | | | | | The main issue was the Communication::Disconnect() was calling its Connection::Disconnect() but this wouldn't release the pipes that the ConnectionFileDescriptor was using. We also have someone that is holding a strong reference to the Process so that when you re-run, target replaces its m_process_sp, but it doesn't get destructed because someone has a strong reference to it. I need to track that down. But, even if we have a strong reference to the a process that is outstanding, we need to call Process::Finalize() to have it release as much of its resources as possible to avoid memory bloat. Removed the ProcessGDBRemote::SetExitStatus() override and replaced it with ProcessGDBRemote::DidExit(). Now we aren't leaking file descriptors and the stand alone test suite should run much better. llvm-svn: 238089
* Added a new command in ProcessGDBRemote that can figure out the performance ↵Greg Clayton2015-05-211-0/+78
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | characterisitics of your GDB remote server. To addess this, attach to any GDB server and when stopped type: (lldb) process plugin packet speed-test The default will send a variety of packets with different amounts of data to send/receive and print the performance of each packet type: Testing sending 1000 packets of various sizes: qSpeedTest(send=0 , recv=0 ) in 0.057837000 sec for 17289.97 packets/sec ( 0.057837 ms per packet) with standard deviation of 0.007705 ms qSpeedTest(send=0 , recv=4 ) in 0.056162000 sec for 17805.63 packets/sec ( 0.056162 ms per packet) with standard deviation of 0.004439 ms qSpeedTest(send=0 , recv=8 ) in 0.057687000 sec for 17334.93 packets/sec ( 0.057687 ms per packet) with standard deviation of 0.008135 ms qSpeedTest(send=0 , recv=16 ) in 0.058547000 sec for 17080.29 packets/sec ( 0.058547 ms per packet) with standard deviation of 0.005884 ms qSpeedTest(send=0 , recv=32 ) in 0.058289000 sec for 17155.89 packets/sec ( 0.058289 ms per packet) with standard deviation of 0.004057 ms qSpeedTest(send=0 , recv=64 ) in 0.061324000 sec for 16306.83 packets/sec ( 0.061324 ms per packet) with standard deviation of 0.010838 ms qSpeedTest(send=0 , recv=128 ) in 0.065688000 sec for 15223.48 packets/sec ( 0.065688 ms per packet) with standard deviation of 0.006997 ms qSpeedTest(send=0 , recv=256 ) in 0.070621000 sec for 14160.09 packets/sec ( 0.070621 ms per packet) with standard deviation of 0.006188 ms qSpeedTest(send=0 , recv=512 ) in 0.086738000 sec for 11528.97 packets/sec ( 0.086738 ms per packet) with standard deviation of 0.007867 ms qSpeedTest(send=0 , recv=1024 ) in 0.146375000 sec for 6831.77 packets/sec ( 0.146375 ms per packet) with standard deviation of 0.010313 ms qSpeedTest(send=4 , recv=0 ) in 0.057807000 sec for 17298.94 packets/sec ( 0.057807 ms per packet) with standard deviation of 0.009702 ms .... It will then also use various sizes to receive 4MB of data from the GDB server and print out the stats: Testing receiving 4.0MB of data using varying receive packet sizes: qSpeedTest(send=0 , recv=32 ) 131072 packets needed to receive 4.0MB in 7.721290000 sec for 0.518048 MB/sec for 16975.40 packets/sec ( 0.058909 ms per packet) qSpeedTest(send=0 , recv=64 ) 65536 packets needed to receive 4.0MB in 4.029236000 sec for 0.992744 MB/sec for 16265.12 packets/sec ( 0.061481 ms per packet) qSpeedTest(send=0 , recv=128 ) 32768 packets needed to receive 4.0MB in 2.233854000 sec for 1.790627 MB/sec for 14668.82 packets/sec ( 0.068172 ms per packet) qSpeedTest(send=0 , recv=256 ) 16384 packets needed to receive 4.0MB in 1.160024000 sec for 3.448204 MB/sec for 14123.84 packets/sec ( 0.070802 ms per packet) qSpeedTest(send=0 , recv=512 ) 8192 packets needed to receive 4.0MB in 0.701603000 sec for 5.701230 MB/sec for 11676.12 packets/sec ( 0.085645 ms per packet) qSpeedTest(send=0 , recv=1024 ) 4096 packets needed to receive 4.0MB in 0.596786000 sec for 6.702570 MB/sec for 6863.43 packets/sec ( 0.145700 ms per packet) There is a JSON mode so we can use this in the test suite to track GDB server performance for each platform: (lldb) process plugin packet speed-test --json { "packet_speeds" : { "num_packets" : 1000, "results" : [ {"send_size" : 0, "recv_size" : 0, "total_time_nsec" : 64516000, "standard_deviation_nsec" : 20566 }, {"send_size" : 0, "recv_size" : 4, "total_time_nsec" : 59648000, "standard_deviation_nsec" : 10493 }, {"send_size" : 0, "recv_size" : 8, "total_time_nsec" : 56894000, "standard_deviation_nsec" : 5480 }, {"send_size" : 0, "recv_size" : 16, "total_time_nsec" : 59422000, "standard_deviation_nsec" : 6557 }, {"send_size" : 0, "recv_size" : 32, "total_time_nsec" : 61159000, "standard_deviation_nsec" : 12384 }, {"send_size" : 0, "recv_size" : 64, "total_time_nsec" : 61386000, "standard_deviation_nsec" : 9208 }, {"send_size" : 0, "recv_size" : 128, "total_time_nsec" : 64768000, "standard_deviation_nsec" : 4737 }, {"send_size" : 0, "recv_size" : 256, "total_time_nsec" : 71046000, "standard_deviation_nsec" : 5904 }, {"send_size" : 0, "recv_size" : 512, "total_time_nsec" : 87233000, "standard_deviation_nsec" : 8967 }, {"send_size" : 0, "recv_size" : 1024, "total_time_nsec" : 146629000, "standard_deviation_nsec" : 9526 }, {"send_size" : 4, "recv_size" : 0, "total_time_nsec" : 57131000, "standard_deviation_nsec" : 7884 }, {"send_size" : 4, "recv_size" : 4, "total_time_nsec" : 56772000, "standard_deviation_nsec" : 6064 }, {"send_size" : 4, "recv_size" : 8, "total_time_nsec" : 57450000, "standard_deviation_nsec" : 6341 }, {"send_size" : 4, "recv_size" : 16, "total_time_nsec" : 58279000, "standard_deviation_nsec" : 5998 }, {"send_size" : 4, "recv_size" : 32, "total_time_nsec" : 59995000, "standard_deviation_nsec" : 6294 }, {"send_size" : 4, "recv_size" : 64, "total_time_nsec" : 61632000, "standard_deviation_nsec" : 7838 }, {"send_size" : 4, "recv_size" : 128, "total_time_nsec" : 66535000, "standard_deviation_nsec" : 8026 }, {"send_size" : 4, "recv_size" : 256, "total_time_nsec" : 72754000, "standard_deviation_nsec" : 9519 }, {"send_size" : 4, "recv_size" : 512, "total_time_nsec" : 87072000, "standard_deviation_nsec" : 9268 }, {"send_size" : 4, "recv_size" : 1024, "total_time_nsec" : 147221000, "standard_deviation_nsec" : 9702 }, {"send_size" : 8, "recv_size" : 0, "total_time_nsec" : 57900000, "standard_deviation_nsec" : 7356 }, {"send_size" : 8, "recv_size" : 4, "total_time_nsec" : 58116000, "standard_deviation_nsec" : 7630 }, {"send_size" : 8, "recv_size" : 8, "total_time_nsec" : 57745000, "standard_deviation_nsec" : 8541 }, {"send_size" : 8, "recv_size" : 16, "total_time_nsec" : 59091000, "standard_deviation_nsec" : 7851 }, {"send_size" : 8, "recv_size" : 32, "total_time_nsec" : 59943000, "standard_deviation_nsec" : 6761 }, {"send_size" : 8, "recv_size" : 64, "total_time_nsec" : 62097000, "standard_deviation_nsec" : 8580 }, {"send_size" : 8, "recv_size" : 128, "total_time_nsec" : 69942000, "standard_deviation_nsec" : 16645 }, {"send_size" : 8, "recv_size" : 256, "total_time_nsec" : 72927000, "standard_deviation_nsec" : 11031 }, {"send_size" : 8, "recv_size" : 512, "total_time_nsec" : 87221000, "standard_deviation_nsec" : 8002 }, {"send_size" : 8, "recv_size" : 1024, "total_time_nsec" : 148696000, "standard_deviation_nsec" : 10383 }, {"send_size" : 16, "recv_size" : 0, "total_time_nsec" : 59890000, "standard_deviation_nsec" : 15160 }, {"send_size" : 16, "recv_size" : 4, "total_time_nsec" : 56664000, "standard_deviation_nsec" : 4650 }, {"send_size" : 16, "recv_size" : 8, "total_time_nsec" : 57574000, "standard_deviation_nsec" : 7787 }, {"send_size" : 16, "recv_size" : 16, "total_time_nsec" : 59312000, "standard_deviation_nsec" : 8104 }, {"send_size" : 16, "recv_size" : 32, "total_time_nsec" : 59764000, "standard_deviation_nsec" : 7496 }, {"send_size" : 16, "recv_size" : 64, "total_time_nsec" : 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"recv_size" : 128, "total_time_nsec" : 2128791000 }, {"send_size" : 0, "recv_size" : 256, "total_time_nsec" : 1172077000 }, {"send_size" : 0, "recv_size" : 512, "total_time_nsec" : 703833000 }, {"send_size" : 0, "recv_size" : 1024, "total_time_nsec" : 594966000 } ] } } llvm-svn: 237953
* Fix StopInfoWatchpoint handling after r237411Pavel Labath2015-05-151-1/+3
| | | | | | | | | | | | r237411 exposed the following issue: ProcessGDBRemote used the description field in the stop-reply to set the description of the StopInfo. In the case of watchpoints, the packet description contains the raw address that got hit, which is not exactly the information we want to display to the user as the stop info. Therefore, I have changed the code to use the packet description only if the StopInfo does not already have a description. This makes the behavior equivalent to the pre-r237411 behavior as then the SetDecription call got ignored for watchpoints. llvm-svn: 237436
* Remove DoAttachToProcessWithId(lldb::pid_t).Zachary Turner2015-05-131-7/+0
| | | | | | | | | | There were two versions of DoAttachToprocessWithId. One that takes a pid_t, and the other which takes a pid_t and a ProcessAttachInfo. There were no callers of the former version, and all of the implementations of this version were simply forwarding calls to one version or the other. llvm-svn: 237281
* Remote Non-Stop SupportEwan Crawford2015-05-131-6/+56
| | | | | | | | | | | | | | | | | | | | Summary: This patch is the beginnings of support for Non-stop mode in the remote protocol. Letting a user examine stopped threads, while other threads execute freely. Non-stop mode is enabled using the setting target.non-stop-mode, which sends a QNonStop packet when establishing the remote connection. Changes are also made to treat the '?' stop reply packet differently in non-stop mode, according to spec https://sourceware.org/gdb/current/onlinedocs/gdb/Remote-Non_002dStop.html#Remote-Non_002dStop. A setting for querying the remote for default thread on setup is also included. Handling of '%' async notification packets will be added next. Reviewers: clayborg Subscribers: lldb-commits, ADodds, ted, deepak2427 Differential Revision: http://reviews.llvm.org/D9656 llvm-svn: 237239
* Fixed a ton of gcc compile warningsVince Harron2015-05-131-5/+5
| | | | | | | | | | Removed some unused variables, added some consts, changed some casts to const_cast. I don't think any of these changes are very controversial. Differential Revision: http://reviews.llvm.org/D9674 llvm-svn: 237218
* Fixed minor compile warningsVince Harron2015-05-101-2/+1
| | | | llvm-svn: 236945
* This patch allows LLDB to use the $qXfer:Libraries: packet.Aidan Dodds2015-05-081-5/+330
| | | | | | Differential Revision: http://reviews.llvm.org/D9471 llvm-svn: 236817
* Whitespace-only tweaks to Colin's r235109 patch to match the lldbJason Molenda2015-04-171-128/+175
| | | | | | coding style a little more closely. llvm-svn: 235218
* Add a "force_kill" arg to Process::Destroy(). This is needed afterJason Molenda2015-04-171-1/+1
| | | | | | | | | | | | | | | | | | the changes in r233255/r233258. Normally if lldb attaches to a running process, when we call Process::Destroy, we want to detach from the process. If lldb launched the process itself, ::Destroy should kill it. However, if we attach to a process and the driver calls SBProcess::Kill() (which calls Destroy), we need to kill it even if we didn't launch it originally. The force_kill param allows for the SBProcess::Kill method to force the behavior of Destroy. <rdar://problem/20424439> llvm-svn: 235158
* Define LIBXML2_DEFINED in the Xcode project for Xcode builds so Darwin ↵Greg Clayton2015-04-161-1/+1
| | | | | | | | | | builds can take advantage of the new GDB register info from the target XML. Also add "#if defined( LIBXML2_DEFINED )" around code that already used libxml2 in SymbolVendorMacOSX.cpp. Cleaned up some warnings in ProcessGDBRemote.cpp. llvm-svn: 235144
* Surround assignments w/ parenthesis to avoid mistakes.Davide Italiano2015-04-161-5/+5
| | | | | | This also silences a warning. llvm-svn: 235131
* Use the correct type, and silence a warning.Davide Italiano2015-04-161-1/+1
| | | | llvm-svn: 235126
* Adds lldb support for querying the register mapping from gdbserver remote ↵Colin Riley2015-04-161-0/+466
| | | | | | | | targets using qXfer:features:read packet. Only enabled if libxml2 enabled in build. Differential Revision: http://reviews.llvm.org/D8999 llvm-svn: 235109
* [LLDB][MIPS] Add LinuxSignals for mips64 and change trap opcode for mips64el.Mohit K. Bhakkad2015-04-091-1/+5
| | | | | | | | | | | | | | | Patch by Sagar Thakur - Added LinuxSignals for MIPS64. - Changed software trap opcode for mips64el. Reviewers: clayborg, tberghammer. Subscribers: emaste, jaydeep, bhushan, mohit.bhakkad, llvm-commits. Differential Revision: http://reviews.llvm.org/D8856 llvm-svn: 234469
* Sprinkle some #include <mutex> in files that use std::call_once.Benjamin Kramer2015-04-031-0/+1
| | | | llvm-svn: 234005
* [Plugin/Process] Use std::call_once() to initialize.Davide Italiano2015-04-031-4/+3
| | | | | | | | This replaces the home-grown initialization mechanism used before. Differential Revision: http://reviews.llvm.org/D8760 llvm-svn: 233999
* Move several plugin to its own namespaceTamas Berghammer2015-03-311-16/+15
| | | | | | | | | | | | | Affected paths: * Plugins/Platform/Android/* * Plugins/Platform/Linux/* * Plugins/Platform/gdb-server/* * Plugins/Process/Linux/* * Plugins/Process/gdb-remote/* Differential revision: http://reviews.llvm.org/D8654 llvm-svn: 233679
* Fetch module specification from remote process alsoTamas Berghammer2015-03-241-0/+28
| | | | | | | | | | | | | Previously the remote module sepcification was fetched only from the remote platform. With this CL if we have a remote process then we ask it if it have any information from a given module. It is required because on android the dynamic linker only reports the name of the SO file and the platform can't always find it without a full path (the process can do it based on /proc/<pid>/maps). Differential revision: http://reviews.llvm.org/D8547 llvm-svn: 233061
* Remove virtual and add override to all virtual functions in Process/gdb-remote.Tamas Berghammer2015-03-231-4/+4
| | | | llvm-svn: 232952
* Remove ScriptInterpreterObject.Zachary Turner2015-03-171-22/+25
| | | | | | | | | | | | | | | | | | | | | | | | | This removes ScriptInterpreterObject from the codebase completely. Places that used to rely on ScriptInterpreterObject now use StructuredData::Object and its derived classes. To support this, a new type of StructuredData object is introduced, called StructuredData::Generic, which stores a void*. Internally within the python library, StructuredPythonObject subclasses this StructuredData::Generic class so that it can addref and decref the python object on construction and destruction. Additionally, all of the classes in PythonDataObjects.h such as PythonList, PythonDictionary, etc now provide a method to create an instance of the corresponding StructuredData type. For example, there is PythonDictionary::CreateStructuredDictionary. To eliminate dependencies on PythonDataObjects for external callers, all ScriptInterpreter methods now return only StructuredData classes The rest of the changes in this CL are focused on fixing up users of PythonDataObjects classes to use the new StructuredData classes. llvm-svn: 232534
* Fix fetching the architecture of the target on process launchTamas Berghammer2015-03-131-9/+10
| | | | | | | | | | Previously it was fetched only if the architecture isn't valid, but the architecture can be valid without containing all information about the current target (e.g. missing os). Differential revision: http://reviews.llvm.org/D8057 llvm-svn: 232153
* Remove non const version of GetArchitecture from Target.hTamas Berghammer2015-03-131-9/+12
| | | | | | | The architecture of a target should be updated only by the SetArchitecture method so the target can correctly manage its modules. llvm-svn: 232152
* Initialize ProcessGDBRemoteLog for LLGS to fix remote platform loggingRobert Flack2015-03-111-8/+0
| | | | | | | | This was previously initialized by ProcessGDBRemote::Initialize but lldb-server does not contain ProcessGDBRemote anymore so this needs to be initialized directly. Differential Revision: http://reviews.llvm.org/D8186 llvm-svn: 231966
* Fix bug in ProcessGDBRemotePavel Labath2015-03-111-1/+1
| | | | | | | | | | | | | | | Summary: ProcessGDBRemote::AsyncThread nuked its own thread handle upon exiting. This prevented the main thread from joining it correctly in StopAsyncThread. I address this by moving the Reset() call to StopAsyncThread, after the join. Reviewers: clayborg, zturner Subscribers: lldb-commits Differential Revision: http://reviews.llvm.org/D8218 llvm-svn: 231915
* Set the signals based on the OS in the qHostInfo packetTamas Berghammer2015-03-041-1/+1
| | | | | | | | | | Setting it from the Target architecture cause problems when the target archiutecture is filled just by examining the executable because in that case the OS isn't set. Differential revision: http://reviews.llvm.org/D8035 llvm-svn: 231234
* Further reduce header footprint of Debugger.h.Zachary Turner2015-03-041-0/+2
| | | | llvm-svn: 231202
* Create ScopedTimeout class for GDBRemoteCommunicationTamas Berghammer2015-02-241-18/+17
| | | | | | | | | | This new class makes it easier to change the timeout of a GDBRemoteCommunication instance for a short time and then restore it to its original value. Differential revision: http://reviews.llvm.org/D7826 llvm-svn: 230319
* Fix TestProcessIO.py when run against a remote targetVince Harron2015-02-131-3/+3
| | | | | | | | | | | | | Fixed test case to copy redirected stdout/stderr files from remote target to host llgs wasn't bothering to put the pty master file handle in the right place if stdout/stderr were redirected to a file. It is still needed for stdin. Corrected some log message text llvm-svn: 229141
* Separate monolithic GDBRemoteCommunicationServer class into 4 partTamas Berghammer2015-02-111-1/+1
| | | | | | | | | | | GDBRemoteCommunicationServer: Basic packet handling, handler registration LLDBCommonPacketHandler: Common packet handling for lldb-platform and lldb-gdbserver LLDBPlatformPacketHandler: lldb-platform specific packet handling LLGSPacketHandler: lldb-gdbserver specific packet handling Differential Revision: http://reviews.llvm.org/D7538 llvm-svn: 228823
* Fix 'process launch -i' for remote processesVince Harron2015-02-101-22/+28
| | | | | | | | | | | | | | | | | | We want to forward stdin when stdio is not disabled and when we're not redirecting stdin from a file. renamed m_stdio_disable to m_stdin_forward and inverted value because that's what we want to remember. There was previously a bug that if you redirected stdin from a file, stdout and stderr would also be redirected to /dev/null Adds support for remote target to TestProcessIO.py Fixes ProcessIOTestCase.test_stdin_redirection_with_dwarf for remote Linux targets llvm-svn: 228744
* Add support for SBProcess::PutSTDIN to remote processesVince Harron2015-02-061-0/+5
| | | | | | | | | | | | | | Processes running on a remote target can already send $O messages to send stdout but there is no way to send stdin to a remote inferior. This allows processes using the API to pump stdin into a remote inferior process. It fixes a hang in TestProcessIO.py when running against a remote target. llvm-svn: 228419
* Implement setting and clearing watchpoints.Chaoren Lin2015-02-031-2/+18
| | | | llvm-svn: 227930
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