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(#115712)
Fixes #67825 Fixes #89077
Fixes
[RIDER-99436](https://youtrack.jetbrains.com/issue/RIDER-99436/Unity-Editor-will-be-crashed-when-detaching-LLDB-debugger-in-Rider),
which is upstream issue of #67825.
This PR changes the timing of calling `DebugActiveProcessStop` to after
calling `ContinueDebugEvent` for last debugger exception.
I confirmed the crashing behavior is because we call
`DebugActiveProcessStop` before `ContinueDebugEvent` for last debugger
exception with https://github.com/anatawa12/debug-api-test.
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Don't call raw_string_ostream::flush(), which is essentially a no-op. As
specified in the docs, raw_string_ostream is always unbuffered. (
65b13610a5226b84889b923bae884ba395ad084d for further reference )
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This patch replaces uses of StringRef::{starts,ends}with with
StringRef::{starts,ends}_with for consistency with
std::{string,string_view}::{starts,ends}_with in C++20.
I'm planning to deprecate and eventually remove
StringRef::{starts,ends}with.
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This patch replaces (llvm::|)Optional< with std::optional<. I'll post
a separate patch to clean up the "using" declarations, #include
"llvm/ADT/Optional.h", etc.
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
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This patch adds #include <optional> to those files containing
llvm::Optional<...> or Optional<...>.
I'll post a separate patch to actually replace llvm::Optional with
std::optional.
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
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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
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The WinAPI `GetFinalPathNameByHandle` is used to retrieve the DLL file
name from the HANDLE provided to `LOAD_DLL_DEBUG_EVENT` in the debug
loop. When this API fails, lldb will simply ignore that module.
Certain ramdisk (e.g. ImDisk) does not work with this API, which means
it is impossible to use lldb to debug a process which loads DLLs located
on this type of ramdisk. In order to make this work, we need to use a
fallback routine which involves creating a file mapping, using
`GetMappedFileName` to get a device path, then substitutes the device
path with its drive letter.
References:
* https://developercommunity.visualstudio.com/t/cannot-debug-program-when-compiled-to-ram-drive/43004#T-N109926
* https://github.com/jrfonseca/drmingw/issues/65
* https://docs.microsoft.com/en-us/windows/win32/memory/obtaining-a-file-name-from-a-file-handle
Reviewed By: labath
Differential Revision: https://reviews.llvm.org/D126657
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Accept a function object instead of a raw pointer. This avoids a bunch
of boilerplate typically needed to pass arguments to the thread
functions.
Differential Revision: https://reviews.llvm.org/D120321
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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
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Summary: Thanks to Hui Huang and the reviewers for all the help with this patch.
Reviewers: labath, Hui, jfb, clayborg, amccarth
Reviewed By: labath
Subscribers: amccarth, compnerd, dexonsmith, mgorny, jfb, teemperor, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D63165
llvm-svn: 368759
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function signature
llvm-svn: 365526
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Summary:
On Windows `lldb::thread_result_t` resolves to `typedef unsigned thread_result_t;` and on other platforms it resolves to `typedef void *thread_result_t;`.
Therefore one cannot use `nullptr` when returning from a function that returns `thread_result_t`.
I've made this change because a windows build bot fails with these errors:
```
E:\build_slave\lldb-x64-windows-ninja\llvm\tools\lldb\source\Core\Communication.cpp(362): error C2440: 'return': cannot convert from 'nullptr' to 'lldb::thread_result_t'
E:\build_slave\lldb-x64-windows-ninja\llvm\tools\lldb\source\Core\Communication.cpp(362): note: A native nullptr can only be converted to bool or, using reinterpret_cast, to an integral type
```
and
```
E:\build_slave\lldb-x64-windows-ninja\llvm\tools\lldb\source\Core\Debugger.cpp(1619): error C2440: 'return': cannot convert from 'nullptr' to 'lldb::thread_result_t'
E:\build_slave\lldb-x64-windows-ninja\llvm\tools\lldb\source\Core\Debugger.cpp(1619): note: A native nullptr can only be converted to bool or, using reinterpret_cast, to an integral type
E:\build_slave\lldb-x64-windows-ninja\llvm\tools\lldb\source\Core\Debugger.cpp(1664): error C2440: 'return': cannot convert from 'nullptr' to 'lldb::thread_result_t'
E:\build_slave\lldb-x64-windows-ninja\llvm\tools\lldb\source\Core\Debugger.cpp(1664): note: A native nullptr can only be converted to bool or, using reinterpret_cast, to an integral type
```
This is the failing build: http://lab.llvm.org:8011/builders/lldb-x64-windows-ninja/builds/5035/steps/build/logs/stdio
Reviewers: JDevlieghere, teemperor, jankratochvil, labath, clayborg, RKSimon, courbet, jhenderson
Reviewed By: labath, clayborg
Subscribers: labath, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D62305
llvm-svn: 361503
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llvm-svn: 353049
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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
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llvm-svn: 345956
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Summary:
If the process exits before any initial stop then notify the debugger
of the error otherwise WaitForDebuggerConnection() will be blocked.
An example of this issue is when a process fails to load a dependent DLL.
In addition to the fix, remove a duplicate call to FreeProcessHandles() in
DebuggerThread::HandleExitProcessEvent() and use decimal format
for all thread IDs.
Reviewers: rnk, zturner, aleksandr.urakov
Reviewed By: zturner
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D53090
llvm-svn: 344168
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Summary:
This class was initially in Host because its implementation used to be
very OS-specific. However, with C++11, it has become a very simple
std::condition_variable wrapper, with no host-specific code.
It is also a general purpose utility class, so it makes sense for it to
live in a place where it can be used by everyone.
This has no effect on the layering right now, but it enables me to later
move the Listener+Broadcaster+Event combo to a lower layer, which is
important, as these are used in a lot of places (notably for launching a
process in Host code).
Reviewers: jingham, zturner, teemperor
Reviewed By: zturner
Subscribers: xiaobai, mgorny, lldb-commits
Differential Revision: https://reviews.llvm.org/D50384
llvm-svn: 341089
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on Windows
Summary:
test_set_working_dir was testing two scenario: failure to set the working dir because of a non existent directory and succeeding to set the working directory. Since the negative case fails on both Linux and Windows, the positive case was never tested. I split the test into two which allows us to always run both the negative and positive cases. The positive case now succeeds on Linux and the negative case still fails.
During the investigation, it turned out that lldbtest.py will try to execute a process launch command up to 3 times if the command failed. This means that we could be covering up intermittent failures by running any test that does process launch multiple times without ever realizing it. I've changed the counter to 1 (though it can still be overwritten with the environment variable).
This change also fixes both the positive and negative cases on Windows. There were a few issues:
1) In ProcessLauncherWindows::LaunchProcess, the error was not retrieved until CloseHandle was possibly called. Since CloseHandle is also a system API, its success would overwrite any existing error that could be retrieved using GetLastError. So by the time the error was retrieved, it was now a success.
2) In DebuggerThread::StopDebugging TerminateProcess was called on the process handle regardless of whether it was a valid handle. This was causing the process to crash when the handle was LLDB_INVALID_PROCESS (0xFFFFFFFF).
3) In ProcessWindows::DoLaunch we need to check that the working directory exists before launching the process to have the same behavior as other platforms which first check the directory and then launch process. This way we also control the exact error string.
Reviewers: labath, zturner, asmith, jingham
Reviewed By: labath
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D48050
llvm-svn: 334642
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llvm-svn: 331882
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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
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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
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llvm-svn: 298536
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This is now functionality in LLVM, and all callers have
already been updated to use the LLVM functions.
llvm-svn: 296946
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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
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Summary:
The main difference here is that in the WINLOG macros you can specify
log categories per call, whereas here you have to go the usual lldb
route of getting a Log* variable first. While this means you have to
write at least two statements, it usually means that each statement will
fit on a single line, whereas fitting the WINLOG invocation on a single
line was almost impossible. So the total size of code does not increase
even in functions with a single log statement, and functions with more
logging get shorter.
The downside here is reduced flexibility in specifying the log
categories, which a couple of functions used quite heavily (e.g.
RefreshStateAfterStop). For these I chose a single category used most
prominently and put everything into that, although a solution with
multiple log variables is definitely possible.
Reviewers: zturner, amccarth
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D30172
llvm-svn: 295822
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log->Debug is gone, switch to using log->Verbose
llvm-svn: 294944
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This moves the following classes from Core -> Utility.
ConstString
Error
RegularExpression
Stream
StreamString
The goal here is to get lldbUtility into a state where it has
no dependendencies except on itself and LLVM, so it can be the
starting point at which to start untangling LLDB's dependencies.
These are all low level and very widely used classes, and
previously lldbUtility had dependencies up to lldbCore in order
to use these classes. So moving then down to lldbUtility makes
sense from both the short term and long term perspective in
solving this problem.
Differential Revision: https://reviews.llvm.org/D29427
llvm-svn: 293941
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This diff fixes typos in file headers (incorrect file names).
Test plan:
Under llvm/tools/lldb/source:
find ./* -type f | grep -e '\(cpp\|h\)$' | while read F; do B=$(basename $F); echo $F head -n 1 $F | grep -v $B | wc -l ; done
Differential revision: https://reviews.llvm.org/D27115
llvm-svn: 287966
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The Windows process plugin was broken up into multiple pieces a while back in
order to share code between debugging live processes and minidumps
(postmortem) debugging. The minidump portion was replaced by a cross-platform
solution. This left the plugin split into a formerly "common" base classes and
the derived classes for live debugging. This extra layer made the code harder
to understand and work with.
This patch simplifies these class hierarchies by rolling the live debugging
concrete classes up to the base classes. Last week I posted my intent to make
this change to lldb-dev, and I didn't hear any objections.
This involved moving code and changing references to classes like
ProcessWindowsLive to ProcessWindows. It still builds for both 32- and 64-bit,
and the tests still pass on 32-bit. (Tests on 64-bit weren't passing before
this refactor for unrelated reasons.)
llvm-svn: 287770
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