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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.
2023-07-06[lldb] Replace countPopulation with popcount after D153686Fangrui Song
2022-10-18[LLDB] Fix the build for ppc64le linuxMartin Storsjö
812ad2167bd2e27f5d0dee07bb03a5910616e0b6 changed the signature of RegisterValue::SetFromMemoryData.
2022-08-03[lldb] Fix TestDeletedExecutable on linuxPavel Labath
Currently, lldb-server was opening the executable file to determine the process architecture (to differentiate between 32 and 64 bit architecture flavours). This isn't a particularly trustworthy source of information (the file could have been changed since the process was started) and it is not always available (file could be deleted or otherwise inaccessible). Unfortunately, ptrace does not give us a direct API to access the process architecture, but we can still infer it via some of its responses -- given that the general purpose register set of 64-bit applications is larger [citation needed] than the GPR set of 32-bit ones, we can just ask for the application GPR set and check its size. This is what this patch does. Differential Revision: https://reviews.llvm.org/D130985
2022-04-05[lldb] Add more missing consts in NativeRegisterContextsJonas Devlieghere
2022-04-05[lldb] Update the NativeRegisterContext to take a WritableMemoryBufferJonas Devlieghere
2022-01-26[lldb] Convert POSIXLog to use the new APIPavel Labath
2021-10-05[lldb] Remove some anonymous namespacesPavel Labath
.. and reduce the scope of others. They don't follow llvm coding standards (which say they should be used only when the same effect cannot be achieved with the static keyword), and they set a bad example.
2021-04-01[lldb] Fix build errors from 3bea7306e8Pavel Labath
The addition of the dummy constructors requires matching changes in os- and arch-specific files, which I forgot about.
2021-03-30[lldb] Change CreateHostNativeRegisterContextLinux argument typePavel Labath
to NativeThreadLinux. This avoid casts down the line.
2020-10-26[lldb] [Process/Linux] Reuse NativeRegisterContextWatchpoint_x86Michał Górny
Differential Revision: https://reviews.llvm.org/D90119
2020-04-07[lldb] NFC: Fix trivial typo in comments, documents, and messagesKazuaki Ishizaki
Differential Revision: https://reviews.llvm.org/D77460
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
2019-09-02NativeProcessLinux: Remove some register context boilerplatePavel Labath
Summary: This patch follows the spirit of D63594, and removes some null checks for things which should be operating invariants. Specifically {Read,Write}[GF]PR now no longer check whether the supplied buffers are null, because they never are. After this, the Do*** versions of these function no longer serve any purpose and are inlined into their callers. Other cleanups are possible here too, but I am taking this one step at a time because this involves a lot of architecture-specific code, which I don't have the hardware to test on (I did do a build-test though). Reviewers: mgorny, jankratochvil, omjavaid, alexandreyy, uweigand Subscribers: nemanjai, javed.absar, kbarton, lldb-commits Differential Revision: https://reviews.llvm.org/D66744 llvm-svn: 370653
2019-08-14[LLDB] Migrate llvm::make_unique to std::make_uniqueJonas Devlieghere
Now that we've moved to C++14, we no longer need the llvm::make_unique implementation from STLExtras.h. This patch is a mechanical replacement of (hopefully) all the llvm::make_unique instances across the monorepo. Differential revision: https://reviews.llvm.org/D66259 llvm-svn: 368933
2019-07-01Don't check the validity of newly contructed data buffersPavel Labath
A bunch of places were checking that DataBufferHeap::GetBytes returns a non-null pointer right after constructing it. The only time when GetBytes returns a null pointer is if it is empty (and I'm not sure that even this is a good idea), but that is clearly not the case here, as the buffer was constructed with a non-zero size just a couple of lines back. llvm-svn: 364754
2019-07-01Remove null checks of results of new expressionsPavel Labath
operator new doesn't return a null pointer, even if one turns off exceptions (it calls std::terminate instead). Therefore, all of this is dead code. llvm-svn: 364744
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
2018-08-07Move 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
2018-04-30Reflow 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
2018-03-06[LLDB][PPC64] Fixed issues with expedited registersPavel Labath
Summary: - reg_nums were missing the end marker entry - marked FP test to be skipped for ppc64 Reviewers: labath, clayborg Reviewed By: labath, clayborg Subscribers: alexandreyy, lbianc, nemanjai, kbarton Differential Revision: https://reviews.llvm.org/D43767 Patch by Leandro Lupori <leandro.lupori@gmail.com> llvm-svn: 326775
2017-11-10Clean up NativeRegisterContextPavel Labath
Summary: This commit removes the concrete_frame_idx member from NativeRegisterContext and related functions, which was always set to zero and never used. I also change the native thread class to store a NativeRegisterContext as a unique_ptr (documenting the ownership) and make sure it is always initialized (most of the code was already blindly dereferencing the register context pointer, assuming it would always be present -- this makes its treatment consistent). Reviewers: eugene, clayborg, krytarowski Subscribers: aemerson, sdardis, nemanjai, javed.absar, arichardson, kristof.beyls, kbarton, uweigand, alexandreyy, lldb-commits Differential Revision: https://reviews.llvm.org/D39837 llvm-svn: 317881
2017-11-03Add float/vector registers for ppc64lePavel Labath
Summary: Add read and write functions for VSX, VMX and float registers and fix watchpoint size Reviewers: clayborg Reviewed By: clayborg Subscribers: eugene, labath, clayborg, nemanjai, kbarton, JDevlieghere, anajuliapc, gut, lbianc, lldb-commits Differential Revision: https://reviews.llvm.org/D39487 Patch by: Alexandre Yukio Yamashita <alexandre.yamashita@eldorado.org.br> llvm-svn: 317329
2017-10-27Add specific ppc64le hardware watchpoint handlerPavel Labath
Summary: Add hardware watchpoint funcionality for ppc64le Reviewers: clayborg, zturner Reviewed By: clayborg Subscribers: eugene, clayborg, zturner, lbianc, gut, nemanjai, alexandreyy, kbarton, lldb-commits Differential Revision: https://reviews.llvm.org/D38897 Patch by Ana Julia Caetano <ana.caetano@eldorado.org.br> llvm-svn: 316772
2017-10-05Enable breakpoints and read/write GPRs for ppc64leEugene Zemtsov
Add support for ppc64le to create breakpoints and read/write general purpose registers. Other features for ppc64le and functions to read/write other registers are being implemented. Patch by Alexandre Yukio Yamashita (alexandreyy) Differential Revision: https://reviews.llvm.org/D38323 llvm-svn: 315008