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2024-08-27[lldb] Turn lldb_private::Status into a value type. (#106163)Adrian Prantl
This patch removes all of the Set.* methods from Status. This cleanup is part of a series of patches that make it harder use the anti-pattern of keeping a long-lives Status object around and updating it while dropping any errors it contains on the floor. This patch is largely NFC, the more interesting next steps this enables is to: 1. remove Status.Clear() 2. assert that Status::operator=() never overwrites an error 3. remove Status::operator=() Note that step (2) will bring 90% of the benefits for users, and step (3) will dramatically clean up the error handling code in various places. In the end my goal is to convert all APIs that are of the form ` ResultTy DoFoo(Status& error) ` to ` llvm::Expected<ResultTy> DoFoo() ` How to read this patch? The interesting changes are in Status.h and Status.cpp, all other changes are mostly ` perl -pi -e 's/\.SetErrorString/ = Status::FromErrorString/g' $(git grep -l SetErrorString lldb/source) ` plus the occasional manual cleanup.
2022-12-05[lldb] Use std::nullopt instead of llvm::None (NFC)Kazu Hirata
This is part of an effort to migrate from llvm::Optional to std::optional: https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716
2022-09-06[lldb] [Core] Split read thread support into ThreadedCommunicationMichał Górny
Split the read thread support from Communication into a dedicated ThreadedCommunication subclass. The read thread support is used only by a subset of Communication consumers, and it adds a lot of complexity to the base class. Furthermore, having a dedicated subclass makes it clear whether a particular consumer needs to account for the possibility of read thread being running or not. The modules currently calling `StartReadThread()` are updated to use `ThreadedCommunication`. The remaining modules use the simplified `Communication` class. `SBCommunication` is changed to use `ThreadedCommunication` in order to avoid changing the public API. `CommunicationKDP` is updated in order to (hopefully) compile with the new code. However, I do not have a Darwin box to test it, so I've limited the changes to the bare minimum. `GDBRemoteCommunication` is updated to become a `Broadcaster` directly. Since it does not inherit from `ThreadedCommunication`, its event support no longer collides with the one used for read thread and can be implemented cleanly. The support for `eBroadcastBitReadThreadDidExit` is removed from the code -- since the read thread was not used, this event was never reported. Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.llvm.org/D133251
2022-08-08[lldb] LLVM_FALLTHROUGH => [[fallthrough]]. NFCFangrui Song
2022-01-31[lldb] Convert Process KDP Log to the new APIPavel Labath
2021-05-26[lldb][NFC] Use C++ versions of the deprecated C standard library headersRaphael Isemann
The C headers are deprecated so as requested in D102845, this is replacing them all with their (not deprecated) C++ equivalent. Reviewed By: shafik Differential Revision: https://reviews.llvm.org/D103084
2020-10-20Add a nul byte to packet str before logging, increase default size.Jason Molenda
Add a nul byte to the stream in CommunicationKDP::CheckForPacket before we send the GetData() to a Log::Printf as a c-str. Avoids a crash when logging kdp communications and memory layout isn't in your favor.
2020-07-30[lldb] Don't use static locals for return value storage in some *AsCString ↵Raphael Isemann
functions Let's just return a std::string to make this safe. formatv seemed overkill for formatting the return values as they all just append an integer value to a constant string. Reviewed By: labath Differential Revision: https://reviews.llvm.org/D84505
2020-06-07Support build-ids of other sizes than 16 in UUID::SetFromStringRefJaroslav Sevcik
SBTarget::AddModule currently handles the UUID parameter in a very weird way: UUIDs with more than 16 bytes are trimmed to 16 bytes. On the other hand, shorter-than-16-bytes UUIDs are completely ignored. In this patch, we change the parsing code to handle UUIDs of arbitrary size. To support arbitrary size UUIDs in SBTarget::AddModule, this patch changes UUID::SetFromStringRef to parse UUIDs of arbitrary length. We subtly change the semantics of SetFromStringRef - SetFromStringRef now only succeeds if the entire input is consumed to prevent some prefix-parsing confusion. This is up for discussion, but I believe this is more consistent - we always return false for invalid UUIDs rather than sometimes truncating to a valid prefix. Also, all the call-sites except the API and interpreter seem to expect to consume the entire input. This also adds tests for adding existing modules 4-, 16-, and 20-byte build-ids. Finally, we took the liberty of testing the minidump scenario we care about - removing placeholder module from minidump and replacing it with the real module. Reviewed By: labath, friss Differential Revision: https://reviews.llvm.org/D80755
2020-04-07[lldb] NFC: Fix trivial typo in comments, documents, and messagesKazuaki Ishizaki
Differential Revision: https://reviews.llvm.org/D77460
2020-03-06[lldb] Remove some #ifdef LLDB_CONFIGURATION_DEBUG around assertsRaphael Isemann
Summary: Otherwise this code won't run on the Release+Asserts builds we have on the CI. Fixes rdar://problem/59867885 (partly) Reviewers: aprantl Reviewed By: aprantl Subscribers: JDevlieghere, lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D75493
2020-02-18[lldb] Remove DataExtractor::GetPointerPavel Labath
This function is equivalent to GetAddress, but getAddress is also present on the llvm version of the data extractor.
2020-01-24[lldb][NFC] Fix all formatting errors in .cpp file headersRaphael Isemann
Summary: A *.cpp file header in LLDB (and in LLDB) should like this: ``` //===-- TestUtilities.cpp -------------------------------------------------===// ``` However in LLDB most of our source files have arbitrary changes to this format and these changes are spreading through LLDB as folks usually just use the existing source files as templates for their new files (most notably the unnecessary editor language indicator `-*- C++ -*-` is spreading and in every review someone is pointing out that this is wrong, resulting in people pointing out that this is done in the same way in other files). This patch removes most of these inconsistencies including the editor language indicators, all the different missing/additional '-' characters, files that center the file name, missing trailing `===//` (mostly caused by clang-format breaking the line). Reviewers: aprantl, espindola, jfb, shafik, JDevlieghere Reviewed By: JDevlieghere Subscribers: dexonsmith, wuzish, emaste, sdardis, nemanjai, kbarton, MaskRay, atanasyan, arphaman, jfb, abidh, jsji, JDevlieghere, usaxena95, lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D73258
2019-07-24[Logging] Replace Log::Printf with LLDB_LOG macro (NFC)Jonas Devlieghere
This patch replaces explicit calls to log::Printf with the new LLDB_LOGF macro. The macro is similar to LLDB_LOG but supports printf-style format strings, instead of formatv-style format strings. So instead of writing: if (log) log->Printf("%s\n", str); You'd write: LLDB_LOG(log, "%s\n", str); This change was done mechanically with the command below. I replaced the spurious if-checks with vim, since I know how to do multi-line replacements with it. find . -type f -name '*.cpp' -exec \ sed -i '' -E 's/log->Printf\(/LLDB_LOGF\(log, /g' "{}" + Differential revision: https://reviews.llvm.org/D65128 llvm-svn: 366936
2019-05-24Fix integer literals which are cast to boolJonas Devlieghere
This change replaces built-in types that are implicitly converted to booleans. Differential revision: https://reviews.llvm.org/D62284 llvm-svn: 361580
2019-04-10[NFC] Remove ASCII lines from commentsJonas Devlieghere
A lot of comments in LLDB are surrounded by an ASCII line to delimit the begging and end of the comment. Its use is not really consistent across the code base, sometimes the lines are longer, sometimes they are shorter and sometimes they are omitted. Furthermore, it looks kind of weird with the 80 column limit, where the comment actually extends past the line, but not by much. Furthermore, when /// is used for Doxygen comments, it looks particularly odd. And when // is used, it incorrectly gives the impression that it's actually a Doxygen comment. I assume these lines were added to improve distinguishing between comments and code. However, given that todays editors and IDEs do a great job at highlighting comments, I think it's worth to drop this for the sake of consistency. The alternative is fixing all the inconsistencies, which would create a lot more churn. Differential revision: https://reviews.llvm.org/D60508 llvm-svn: 358135
2019-01-19Update the file headers across all of the LLVM projects in the monorepoChandler Carruth
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
2018-12-15Simplify Boolean expressionsJonas Devlieghere
This patch simplifies boolean expressions acorss LLDB. It was generated using clang-tidy with the following command: run-clang-tidy.py -checks='-*,readability-simplify-boolean-expr' -format -fix $PWD Differential revision: https://reviews.llvm.org/D55584 llvm-svn: 349215
2018-11-11Remove header grouping comments.Jonas Devlieghere
This patch removes the comments grouping header includes. They were added after running IWYU over the LLDB codebase. However they add little value, are often outdates and burdensome to maintain. llvm-svn: 346626
2018-08-07Move RegisterValue,Scalar,State from Core to UtilityPavel Labath
These three classes have no external dependencies, but they are used from various low-level APIs. Moving them down to Utility improves overall code layering (although it still does not break any particular dependency completely). The XCode project will need to be updated after this change. Differential Revision: https://reviews.llvm.org/D49740 llvm-svn: 339127
2018-06-21Remove UUID::SetFromCStringPavel Labath
Replace uses with SetFromStringRef. NFC. llvm-svn: 335246
2018-05-03Remove the timed_out out-argument from Predicate::WaitForValueEqualToPavel Labath
The function can only return in one of two ways: the Predicate value is successfully set within the allotted time, or it isn't (the wait times out). These states can be represented in the return value, and the extra arg adds no value. llvm-svn: 331458
2018-04-30Reflow paragraphs in comments.Adrian Prantl
This is intended as a clean up after the big clang-format commit (r280751), which unfortunately resulted in many of the comment paragraphs in LLDB being very hard to read. FYI, the script I used was: import textwrap import commands import os import sys import re tmp = "%s.tmp"%sys.argv[1] out = open(tmp, "w+") with open(sys.argv[1], "r") as f: header = "" text = "" comment = re.compile(r'^( *//) ([^ ].*)$') special = re.compile(r'^((([A-Z]+[: ])|([0-9]+ )).*)|(.*;)$') for line in f: match = comment.match(line) if match and not special.match(match.group(2)): # skip intentionally short comments. if not text and len(match.group(2)) < 40: out.write(line) continue if text: text += " " + match.group(2) else: header = match.group(1) text = match.group(2) continue if text: filled = textwrap.wrap(text, width=(78-len(header)), break_long_words=False) for l in filled: out.write(header+" "+l+'\n') text = "" out.write(line) os.rename(tmp, sys.argv[1]) Differential Revision: https://reviews.llvm.org/D46144 llvm-svn: 331197
2018-01-02[MacOSX-Kernel] Remove broken KDP_IMAGEPATH support.Davide Italiano
llvm-svn: 321652
2017-12-19Fix a couple of warnings (NFC)Adrian Prantl
llvm-svn: 321120
2017-05-12Rename Error -> Status.Zachary Turner
This renames the LLDB error class to Status, as discussed on the lldb-dev mailing list. A change of this magnitude cannot easily be done without find and replace, but that has potential to catch unwanted occurrences of common strings such as "Error". Every effort was made to find all the obvious things such as the word "Error" appearing in a string, etc, but it's possible there are still some lingering occurences left around. Hopefully nothing too serious. llvm-svn: 302872
2017-03-22Move FileSpec from Host -> Utility.Zachary Turner
llvm-svn: 298536
2017-03-04Move DataBuffer / DataExtractor and friends from Core -> Utility.Zachary Turner
llvm-svn: 296943
2017-03-04Move UUID from Core -> Utility.Zachary Turner
llvm-svn: 296941
2017-03-04Fix the macOS build all the way after r296909.Jim Ingham
llvm-svn: 296938
2017-03-03Fix DataExtractor failures.Zachary Turner
Some code that doesn't get compiled on Windows had some references that needed updating, and I missed those. llvm-svn: 296930
2017-03-03Move Log from Core -> Utility.Zachary Turner
All references to Host and Core have been removed, so this class can now safely be lowered into Utility. Differential Revision: https://reviews.llvm.org/D30559 llvm-svn: 296909
2017-02-06Remove verbose category in the kdp channelPavel Labath
llvm-svn: 294244
2016-11-25Fix builds Windows and OSX builds after Connection refactor in r287922Pavel Labath
Switch various bits of platform-specific code to chrono that I did not notice when doing a linux build. This exposed a bug that ConnectionGenericFileWindows did not handle the magic UINT32_MAX timeout value (instead it waited for about an hour, which is close enough I guess). Fix that as well. llvm-svn: 287927
2016-11-02Remove TimeValue usages from MacOSX-Kernel process plugin. NFCPavel Labath
llvm-svn: 285795
2016-09-06*** This commit represents a complete reformatting of the LLDB source codeKate Stone
*** to conform to clang-format’s LLVM style. This kind of mass change has *** two obvious implications: Firstly, merging this particular commit into a downstream fork may be a huge effort. Alternatively, it may be worth merging all changes up to this commit, performing the same reformatting operation locally, and then discarding the merge for this particular commit. The commands used to accomplish this reformatting were as follows (with current working directory as the root of the repository): find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} + find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ; The version of clang-format used was 3.9.0, and autopep8 was 1.2.4. Secondly, “blame” style tools will generally point to this commit instead of a meaningful prior commit. There are alternatives available that will attempt to look through this change and find the appropriate prior commit. YMMV. llvm-svn: 280751
2016-08-09Delete Host/windows/win32.hZachary Turner
It's always hard to remember when to include this file, and when you do include it it's hard to remember what preprocessor check it needs to be behind, and then you further have to remember whether it's windows.h or win32.h which you need to include. This patch changes the name to PosixApi.h, which is more appropriately named, and makes it independent of any preprocessor setting. There's still the issue of people not knowing when to include this, because there's not a well-defined set of things it exposes other than "whatever is missing on Windows", but at least this should make it less painful to fix when problems arise. This patch depends on LLVM revision r278170. llvm-svn: 278177
2016-07-28Fixed up Xcode build for r276976 and r277011.Todd Fiala
Also, fixed up typos in RenderScript code that could not possibly compile. llvm-svn: 277012
2016-07-28Clean up vestigial remnants of locking primitivesSaleem Abdulrasool
This finally removes the use of the Mutex and Condition classes. This is an intricate patch as the Mutex and Condition classes were tied together. Furthermore, many places had slightly differing uses of time values. Convert timeout values to relative everywhere to permit the use of std::chrono::duration, which is required for the use of std::condition_variable's timeout. Adjust all Condition and related Mutex classes over to std::{,recursive_}mutex and std::condition_variable. This change primarily comes at the cost of breaking the TracingMutex which was based around the Mutex class. It would be possible to write a wrapper to provide similar functionality, but that is beyond the scope of this change. llvm-svn: 277011
2016-05-19second pass over removal of Mutex and ConditionSaleem Abdulrasool
llvm-svn: 270024
2016-05-18remove use of Mutex in favour of std::{,recursive_}mutexSaleem Abdulrasool
This is a pretty straightforward first pass over removing a number of uses of Mutex in favor of std::mutex or std::recursive_mutex. The problem is that there are interfaces which take Mutex::Locker & to lock internal locks. This patch cleans up most of the easy cases. The only non-trivial change is in CommandObjectTarget.cpp where a Mutex::Locker was split into two. llvm-svn: 269877
2016-02-16Add -Wimplicit-fallthrough command line option to clang inJason Molenda
the xcode project file to catch switch statements that have a case that falls through unintentionally. Define LLVM_FALLTHROUGH to indicate instances where a case has code and intends to fall through. This should be in llvm/Support/Compiler.h; Peter Collingbourne originally checked in there (r237766), then reverted (r237941) because he didn't have time to mark up all the 'case' statements that were intended to fall through. I put together a patch to get this back in llvm http://reviews.llvm.org/D17063 but it hasn't been approved in the past week. I added a new lldb-private-defines.h to hold the definition for now. Every place in lldb where there is a comment that the fall-through is intentional, I added LLVM_FALLTHROUGH to silence the warning. I haven't tried to identify whether the fallthrough is a bug or not in the other places. I haven't tried to add this to the cmake option build flags. This warning will only work for clang. This build cleanly (with some new warnings) on macosx with clang under xcodebuild, but if this causes problems for people on other configurations, I'll back it out. llvm-svn: 260930
2014-05-02Fixed CTRL+C related issues:Greg Clayton
- CTRL+C wasn't clearing the command in lldb - CTRL+C doesn't work in python macros in lldb - Ctrl+C no longer interrupts the running process that you attach to <rdar://problem/15949205> <rdar://problem/16778652> <rdar://problem/16774411> llvm-svn: 207816
2014-04-02Workaround for collision between enum members in LLVM's MachO.h and system ↵Jim Ingham
headers on Mac OS X (in particular mach/machine.h). <rdar://problem/16494607> llvm-svn: 205480
2014-01-10Fixed an issue with the byte order of ports in KDP packets. Greg Clayton
I previously fixed a bug in the SocketAddress class where SocketAddress::GetPort() wasn't using ntohs() on the port number in the structures. After fixing this, it broke places where we weren't using ntohs() and htons() correctly. <rdar://problem/15767514> llvm-svn: 198902
2013-07-10Fixed an issue introduced with my last fix where the command and sequence ID ↵Greg Clayton
extraction were moved causing them to be reversed. llvm-svn: 186020
2013-07-10Fixed the CommunicationKDP::SendRequestAndGetReply() to correctly be able to ↵Greg Clayton
deal with getting a reply from a previous packet without resending the packet again. llvm-svn: 185988
2013-07-02Change the default timeout for KDP communications to be 5 seconds.Jason Molenda
<rdar://problem/13793059> llvm-svn: 185400
2013-05-09Add an explicit check for a darwin kernel KDP_VERSIONSTRING whenJason Molenda
starting a kdp communication session, instead of assuming darwin kernel for any "non-EFI" kdp session. <rdar://problem/13854098> llvm-svn: 181566
2013-03-27<rdar://problem/13521159>Greg Clayton
LLDB is crashing when logging is enabled from lldb-perf-clang. This has to do with the global destructor chain as the process and its threads are being torn down. All logging channels now make one and only one instance that is kept in a global pointer which is never freed. This guarantees that logging can correctly continue as the process tears itself down. llvm-svn: 178191