Modify OpenOptions enum to open the future path into synchronizing
vFile:open bits with GDB. Currently, LLDB and GDB use different flag
models effectively making it impossible to match bits. Notably, LLDB
uses two bits to indicate read and write status, and uses union of both
for read/write. GDB uses a value of 0 for read-only, 1 for write-only
and 2 for read/write.
In order to future-proof the code for the GDB variant:
1. Add a distinct eOpenOptionReadWrite constant to be used instead
of (eOpenOptionRead | eOpenOptionWrite) when R/W access is required.
2. Rename eOpenOptionRead and eOpenOptionWrite to eOpenOptionReadOnly
and eOpenOptionWriteOnly respectively, to make it clear that they
do not mean to be combined and require update to all call sites.
3. Use the intersection of all three flags when matching against
the three possible values.
This commit does not change the actual bits used by LLDB.
Differential Revision: https://reviews.llvm.org/D106984
They used to be referenced from the .xcodeproj files, but those are long gone.
No behavior change.
Differential Revision: https://reviews.llvm.org/D107444
Rather than passing two booleans around, which is especially error prone
with them being next to each other, use a struct with named fields
instead.
Differential revision: https://reviews.llvm.org/D107295
This change adds AllocateMemory and DeallocateMemory methods to the SBProcess
API, so that clients can allocate and deallocate memory blocks within the
process being debugged (for storing JIT-compiled code or other uses).
(I am developing a debugger + REPL using the API; it will need to store
JIT-compiled code within the target.)
Reviewed By: clayborg, jingham
Differential Revision: https://reviews.llvm.org/D105389
Replacing existing uses with AppendError.
SetError is also part of the SBI API. This remains
but instead of calling the underlying SetError it
will call AppendError.
Reviewed By: teemperor
Differential Revision: https://reviews.llvm.org/D104768
Add a new feature to process save-core on Darwin systems -- for
lldb to create a user process corefile with only the dirty (modified
memory) pages included. All of the binaries that were used in the
corefile are assumed to still exist on the system for the duration
of the use of the corefile. A new --style option to process save-core
is added, so a full corefile can be requested if portability across
systems, or across time, is needed for this corefile.
debugserver can now identify the dirty pages in a memory region
when queried with qMemoryRegionInfo, and the size of vm pages is
given in qHostInfo.
Create a new "all image infos" LC_NOTE for Mach-O which allows us
to describe all of the binaries that were loaded in the process --
load address, UUID, file path, segment load addresses, and optionally
whether code from the binary was executing on any thread. The old
"read dyld_all_image_infos and then the in-memory Mach-O load
commands to get segment load addresses" no longer works when we
only have dirty memory.
rdar://69670807
Differential Revision: https://reviews.llvm.org/D88387
This adds a basic SB API for creating and stopping traces.
Note: This doesn't add any APIs for inspecting individual instructions. That'd be a more complicated change and it might be better to enhande the dump functionality to output the data in binary format. I'll leave that for a later diff.
This also enhances the existing tests so that they test the same flow using both the command interface and the SB API.
I also did some cleanup of legacy code.
Differential Revision: https://reviews.llvm.org/D103500
Since https://reviews.llvm.org/D103701 AppendError<...>
sets this for you.
This change includes all of the non-command uses.
Some uses remain where it's either tricky to reason about
the logic, or they aren't paired with AppendError calls.
Reviewed By: teemperor
Differential Revision: https://reviews.llvm.org/D104379
This is an NFC cleanup.
Many of the API's that returned BreakpointOptions always returned valid ones.
Internally the BreakpointLocations usually have null BreakpointOptions, since they
use their owner's options until an option is set specifically on the location.
So the original code used pointers & unique_ptr everywhere for consistency.
But that made the code hard to reason about from the outside.
This patch changes the code so that everywhere an API is guaranteed to
return a non-null BreakpointOption, it returns it as a reference to make
that clear.
It also changes the Breakpoint to hold a BreakpointOption
member where it previously had a UP. Since we were always filling the UP
in the Breakpoint constructor, having the UP wasn't helping anything.
Differential Revision: https://reviews.llvm.org/D104162
This workaround was necessary before the major changes of managing python versions, but it is not needed anymore.
Reviewed By: JDevlieghere
Differential Revision: https://reviews.llvm.org/D104047
This converts a default constructor's member initializers into C++11
default member initializers. This patch was automatically generated with
clang-tidy and the modernize-use-default-member-init check.
$ run-clang-tidy.py -header-filter='lldb' -checks='-*,modernize-use-default-member-init' -fix
This is a mass-refactoring patch and this commit will be added to
.git-blame-ignore-revs.
Differential revision: https://reviews.llvm.org/D103483
This is another step towards implementing the equivalent of
`platform process list` and related functionality.
`uint32_t` is used for the argument count and index despite the
underlying value being `size_t` to be consistent with other
index-based access to arguments.
Differential Revision: https://reviews.llvm.org/D103675
This is present when doing a `platform process list` and is
tracked by the underlying code. To do something like the
process list via the SB API in the future, this must be
exposed.
Differential Revision: https://reviews.llvm.org/D103375
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
A long time ago LLDB wanted to start using StringRef instead of
C-Strings/ConstString but was blocked by the fact that the StringRef constructor
that takes a C-string was asserting that the C-string isn't a nullptr. To
workaround this, D24697 introduced a special function called `withNullAsEmpty`
and that's what LLDB (and only LLDB) started to use to build StringRefs from
C-strings.
A bit later it seems that `withNullAsEmpty` was declared too awkward to use and
instead the assert in the StringRef constructor got removed (see D24904). The
rest of LLDB was then converted to StringRef by just calling the now perfectly
usable implicit constructor.
However, all the calls to `withNullAsEmpty` just remained and are now just
strange artefacts in the code base that just look out of place. It's also
curiously a LLDB-exclusive function and no other project ever called it since
it's introduction half a decade ago.
This patch removes all uses of `withNullAsEmpty`. The follow up will be to
remove the function from StringRef.
Reviewed By: JDevlieghere
Differential Revision: https://reviews.llvm.org/D102597
This patch updates `SBCompileUnit::FindLineEntryIndex` to pass a valid
`LineEntry` pointer to `CompileUnit::FindLineEntry`.
This caused `LineTable::FindLineEntryIndexByFileIndexImpl` to return its
`best_match` initial value (UINT32_MAX).
rdar://78115426
Differential Revision: https://reviews.llvm.org/D102658
Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
Fix cases that can crash `SBStructuredData::operator=`.
This happened in a case where `rhs` had a null `SBStructuredDataImpl`.
Differential Revision: https://reviews.llvm.org/D101585
This patch refactors a good part of the code base turning the usual
FileSpec, Line, Column, CheckInlines, ExactMatch arguments into a
SourceLocationSpec object.
This change is required for a following patch that will add handling of the
column line information when doing symbol resolution.
Differential Revision: https://reviews.llvm.org/D100965
Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
This patch moves the Declaration class from the Symbol library to the
Core library. This will allow to use it in a more generic fashion and
aims to lower the dependency cycles when it comes to the linking.
The patch also does some cleaning up by making column information
permanent and removing the LLDB_ENABLE_DECLARATION_COLUMNS directives.
Differential revision: https://reviews.llvm.org/D101556
Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
Introduce three new stop reasons for fork, vfork and vforkdone events.
This includes server support for serializing fork/vfork events into
gdb-remote protocol. The stop infos for the two base events take a pair
of PID and TID for the newly forked process.
Differential Revision: https://reviews.llvm.org/D100196
Commiting this patch for Augusto Noronha who is getting set
up still.
This patch changes Target::ReadMemory so the default behavior
when a read is in a Section that is read-only is to fetch the
data from the local binary image, instead of reading it from
memory. Update all callers to use their old preferences
(the old prefer_file_cache bool) using the new API; we should
revisit these calls and see if they really intend to read
live memory, or if reading from a read-only Section would be
equivalent and important for performance-sensitive cases.
rdar://30634422
Differential revision: https://reviews.llvm.org/D100338
Since quite a while Apple's LLDB fork (that contains the Swift debugging
support) is randomly crashing in `CommandLineParser::addOption` with an error
such as `CommandLine Error: Option 'h' registered more than once!`
The backtrace of the crashing thread is shown below. There are also usually many
other threads also performing similar clang::FrontendActions which are all
trying to generate (usually outdated) Clang modules which are used by Swift for
various reasons.
```
[ 6] LLDB`CommandLineParser::addOption(llvm:🆑:Option*, llvm:🆑:SubCommand*) + 856
[ 7] LLDB`CommandLineParser::addOption(llvm:🆑:Option*, llvm:🆑:SubCommand*) + 733
[ 8] LLDB`CommandLineParser::addOption(llvm:🆑:Option*, bool) + 184
[ 9] LLDB`llvm:🆑:ParseCommandLineOptions(...) [inlined] ::CommandLineParser::ParseCommandLineOptions(... + 1279
[ 9] LLDB`llvm:🆑:ParseCommandLineOptions(...) + 497
[ 10] LLDB`setCommandLineOpts(clang::CodeGenOptions const&) + 416
[ 11] LLDB`EmitAssemblyHelper::EmitAssemblyWithNewPassManager(...) + 98
[ 12] LLDB`clang::EmitBackendOutput(...) + 4580
[ 13] LLDB`PCHContainerGenerator::HandleTranslationUnit(clang::ASTContext&) + 871
[ 14] LLDB`clang::MultiplexConsumer::HandleTranslationUnit(clang::ASTContext&) + 43
[ 15] LLDB`clang::ParseAST(clang::Sema&, bool, bool) + 579
[ 16] LLDB`clang::FrontendAction::Execute() + 74
[ 17] LLDB`clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 1808
```
The underlying reason for the crash is that the CommandLine code in LLVM isn't
thread-safe and will never be thread-safe with its current architecture. The way
LLVM's CommandLine logic works is that all parts of the LLVM can provide command
line arguments by defining `cl::opt` global variables and their constructors
(which are invoked during static initialisation) register the variable in LLVM's
CommandLineParser (which is also just a global variable). At some later point
after static initialization we actually try to parse command line arguments and
we ask the CommandLineParser to parse our `argv`. The CommandLineParser then
lazily constructs it's internal parsing state in a non-thread-safe way (this is
where the crash happens), parses the provided command line and then goes back to
the respective `cl::opt` global variables and sets their values according to the
parse result.
As all of this is based on global state, this whole mechanism isn't thread-safe
so the only time to ever use it is when we know we only have one active thread
dealing with LLVM logic. That's why nearly all callers of
`llvm:🆑:ParseCommandLineOptions` are at the top of the `main` function of the
some LLVM-based tool. One of the few exceptions to this rule is in the
`setCommandLineOpts` function in `BackendUtil.cpp` which is in our backtrace:
```
static void setCommandLineOpts(const CodeGenOptions &CodeGenOpts) {
SmallVector<const char *, 16> BackendArgs;
BackendArgs.push_back("clang"); // Fake program name.
if (!CodeGenOpts.DebugPass.empty()) {
BackendArgs.push_back("-debug-pass");
BackendArgs.push_back(CodeGenOpts.DebugPass.c_str());
}
if (!CodeGenOpts.LimitFloatPrecision.empty()) {
BackendArgs.push_back("-limit-float-precision");
BackendArgs.push_back(CodeGenOpts.LimitFloatPrecision.c_str());
}
BackendArgs.push_back(nullptr);
llvm:🆑:ParseCommandLineOptions(BackendArgs.size() - 1,
BackendArgs.data());
}
```
This is trying to set `cl::opt` variables in the LLVM backend to their right
value as the passed via CodeGenOptions by invoking the CommandLine parser. As
this is just in some generic Clang CodeGen code (where we allow having multiple
threads) this is code is clearly wrong. If we're unlucky it either overwrites
the value of the global variables or it causes the CommandLine parser to crash.
So the next question is why is this only crashing in LLDB? The main reason seems
to be that easiest way to crash this code is to concurrently enter the initial
CommandLineParser construction where it tries to collect all the registered
`cl::opt` options and checks for sanity:
```
// If it's a DefaultOption, check to make sure it isn't already there.
if (O->isDefaultOption() &&
SC->OptionsMap.find(O->ArgStr) != SC->OptionsMap.end())
return;
// Add argument to the argument map!
if (!SC->OptionsMap.insert(std::make_pair(O->ArgStr, O)).second) {
errs() << ProgramName << ": CommandLine Error: Option '" << O->ArgStr
<< "' registered more than once!\n";
HadErrors = true;
}
```
The `OptionsMap` here is global variable and if we end up in this code with two
threads at once then two threads at the same time can register an option (such
as 'h') when they pass the first `if` and then we fail with the sanity check in
the second `if`.
After this sanity check and initial setup code the only remaining work is just
parsing the provided CommandLine which isn't thread-safe but at least doesn't
crash in all my attempts at breaking it (as it's usually just reading from the
already generated parser state but not further modifying it). The exception to
this is probably that once people actually specify the options in the code
snippet above we might run into some new interesting ways to crash everything.
To go back to why it's only affecting LLDB: Nearly all LLVM tools I could find
(even if they are using threads) seem to call the CommandLine parser at the
start so they all execute the initial parser setup at a point where there is
only one thread. So once the code above is executed they are mostly safe from
the sanity check crashes. We even have some shady code for the gtest `main` in
`TestMain.cpp` which is why this also doesn't affect unit tests.
The only exception to this rule is ... *drum roll* ... LLDB! it's not using that
CommandLine library for parsing options so it also never ends up calling it in
`main`. So when we end up in the `FrontendAction` code from the backtrace we are
already very deep in some LLDB logic and usually already have several threads.
In a situation where Swift decides to compile a large amount of Clang modules in
parallel we then end up entering this code via several threads. If several
threads reach this code at the same time we end up in the situation where the
sanity-checking code of CommandLine crashes. I have a very reliable way of
demonstrating the whole thing in D99650 (just run the unit test several times,
it usually crashes after 3-4 attempts).
We have several ways to fix this:
1. Make the whole CommandLine mechanism in LLVM thread-safe.
2. Get rid of `setCommandLineOpts` in `BackendUtil.cpp` and other callers of the
command line parsing in generic Clang code.
3. Initialise the CommandLine library in a safe point in LLDB.
Option 1 is just a lot of work and I'm not even sure where to start. The whole
mechanism is based on global variables and global state and this seems like a
humongous task.
Option 2 is probably the best thing we can do in the near future. There are only
two callers of the command line parser in generic Clang code. The one in
`BackendUtils.cpp` looks like it can be replaced with some reasonable
refactoring (as it only deals with two specific options). There is another one
in `ExecuteCompilerInvocation` which deals with forwarding the generic `-mllvm`
options to the backend which seems like it will just end up requiring us to do
Option 1.
Option 3 is what this patch is doing. We just parse some dummy command line
invocation in a point of the LLDB execution where we only have one thread that
is dealing with LLVM/Clang stuff. This way we are at least prevent the frequent
crashes for users as parsing the dummy command line invocation will set up the
initial parser state safely.
Fixes rdar://70989856
Reviewed By: mib, JDevlieghere
Differential Revision: https://reviews.llvm.org/D99652
This implements the interactive trace start and stop methods.
This diff ended up being much larger than I anticipated because, by doing it, I found that I had implemented in the beginning many things in a non optimal way. In any case, the code is much better now.
There's a lot of boilerplate code due to the gdb-remote protocol, but the main changes are:
- New tracing packets: jLLDBTraceStop, jLLDBTraceStart, jLLDBTraceGetBinaryData. The gdb-remote packet definitions are quite comprehensive.
- Implementation of the "process trace start|stop" and "thread trace start|stop" commands.
- Implementaiton of an API in Trace.h to interact with live traces.
- Created an IntelPTDecoder for live threads, that use the debugger's stop id as checkpoint for its internal cache.
- Added a functionality to stop the process in case "process tracing" is enabled and a new thread can't traced.
- Added tests
I have some ideas to unify the code paths for post mortem and live threads, but I'll do that in another diff.
Differential Revision: https://reviews.llvm.org/D91679
LLDB can often appear deadlocked to users that use IDEs when it is indexing DWARF, or parsing symbol tables. These long running operations can make a debug session appear to be doing nothing even though a lot of work is going on inside LLDB. This patch adds a public API to allow clients to listen to debugger events that report progress and will allow UI to create an activity window or display that can show users what is going on and keep them informed of expensive operations that are going on inside LLDB.
Differential Revision: https://reviews.llvm.org/D97739
This patch adds a new command options to the CommandObjectProcessLaunch
for scripted processes.
Among the options, the user need to specify the class name managing the
scripted process. The user can also use a key-value dictionary holding
arbitrary data that will be passed to the managing class.
This patch also adds getters and setters to `SBLaunchInfo` for the
class name managing the scripted process and the dictionary.
rdar://65508855
Differential Review: https://reviews.llvm.org/D95710
Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
This patch exposes the getter and setter methods for the command
interpreter `print_errors` run option.
rdar://74816984
Differential Revision: https://reviews.llvm.org/D98001
Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
This patch adds a new command options to the CommandObjectProcessLaunch
for scripted processes.
Among the options, the user need to specify the class name managing the
scripted process. The user can also use a key-value dictionary holding
arbitrary data that will be passed to the managing class.
This patch also adds getters and setters to `SBLaunchInfo` for the
class name managing the scripted process and the dictionary.
rdar://65508855
Differential Review: https://reviews.llvm.org/D95710
Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
Our code for locating the shared library directory works via dladdr (or
the windows equivalent) to locate the path of an address known to reside
in liblldb. This works great for C++ programs, but there's a catch.
When (lib)lldb is used from python (like in our test suite), this dladdr
call will return a path to the _lldb.so (or such) file in the python
directory. To compensate for this, we have code which attempts to
resolve this symlink, to ensure we get the canonical location. However,
here's the second catch.
On windows, this file is not a symlink (but a copy), so this logic
fails. Since most of our other paths are derived from the liblldb
location, all of these paths will be wrong, when running the test suite.
One effect of this was the failure to find lldb-server in D96202.
To fix this issue, I add some windows-specific code to locate the
liblldb directory. Since it cannot rely on symlinks, it works by
manually walking the directory tree -- essentially doing the opposite of
what we do when computing the python directory.
To avoid python leaking back into the host code, I implement this with
the help of a callback which can be passed to HostInfo::Initialize in
order to assist with the directory location. The callback lives inside
the python plugin.
I also strenghten the existing path test to ensure the returned path is
the right one.
Differential Revision: https://reviews.llvm.org/D96779
It seems that recording fundamental return type is bogus.
This can trigger asserts when running a test with reproducers so this
patch updates the `SBTarget::IsLoaded` test to stop recording them.
Differential Revision: https://reviews.llvm.org/D95686
Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
This reverts commit 754ab803b8.
As pointed out in https://reviews.llvm.org/D95761, this patch could lead to
having the wrong execution context in some situations (thanks Jim!).
D92164 is addressing the same issue and will replace this patch, so I'll
revert this one.
This patch adds an `SBTarget::IsLoaded(const SBModule&) const` endpoint
to lldb's Scripting Bridge API. As the name suggests, it will allow the
user to know if the module is loaded in a specific target.
rdar://37957625
Differential Review: https://reviews.llvm.org/D95686
Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
Second try, handling both a bogus arch string and the "null file & arch" used
to create an empty but valid target.
Also check in that case before logging (previously the logging would have
crashed.)
Also revert "Follow on to: f05dc40c31d1883b46b8bb60547087db2f4c03e3"
After these changes, multiple lldb tests are failing. Calls to
CreateTargetWithFileAndArch(None, None) appear to fail after these
changes.
This reverts commit f05dc40c31 and
1fba21778f.
When you pass in a bogus ArchSpec, TargetList.CreateTarget
makes a target with the arch of the executable. That wasn't the
case with a bogus triple, so this change caused one of the bogus
input data tests to fail. So check that the ArchSpec is valid
before passing it to CreateTarget.
This patch introduces a LLDB_SCOPED_TIMER macro to hide the needlessly
repetitive creation of scoped timers in LLDB. It's similar to the
LLDB_LOG(F) macro.
Differential revision: https://reviews.llvm.org/D93663
This reverts commit a01b26fb51, because it
breaks the "finish" command in some way -- the command does not
terminate after it steps out, but continues running the target. The
exact blast radius is not clear, but it at least affects the usage of
the "finish" command in TestGuiBasicDebug.py. The error is *not*
gui-related, as the same issue can be reproduced by running the same
steps outside of the gui.
There is some kind of a race going on, as the test fails only 20% of the
time on the buildbot.
This patch exposes the Target::CreateBreakpoint overload with the
boolean argument to move to the neareast code to the SBAPI.
This is useful when creating column breakpoints to restrict lldb's
resolution to the pointed source location, preventing it to go to the next
line.
rdar://72196842
Differential Revision: https://reviews.llvm.org/D93266
Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
This patch exposes the Target::CreateBreakpoint overload with the
boolean argument to move to the neareast code to the SBAPI.
This is useful when creating column breakpoints to restrict lldb's
resolution to the pointed source location, preventing it to go to the next
line.
rdar://72196842
Differential Revision: https://reviews.llvm.org/D93266
Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
Currently, the interpreter's context is not updated until a command is executed.
This has resulted in the behavior of SB-interface functions and some commands
depends on previous user actions. The interpreter's context can stay uninitialized,
point to a currently selected target, or point to one of previously selected targets.
This patch removes any usages of CommandInterpreter::UpdateExecutionContext.
CommandInterpreter::HandleCommand* functions still may override context temporarily,
but now they always restore it before exiting. CommandInterpreter saves overriden
contexts to the stack, that makes nesting commands possible.
Added test reproduces one of the issues. Without this fix, the last assertion fails
because interpreter's execution context is empty until running "target list", so,
the value of the global property was updated instead of process's local instance.
Differential Revision: https://reviews.llvm.org/D92164
TargetList::CreateTarget automatically adds created target to the list, however,
CommandObjectTargetCreate does some additional preparation after creating a target
and which can fail. The command should remove created target if it failed. Since
the function has many ways to return, scope guard does this work safely.
Changes to the TargetList make target adding and selection more transparent.
Other changes remove unnecessary SetSelectedTarget after CreateTarget.
Differential Revision: https://reviews.llvm.org/D93052
Add a 'can_connect' parameter to Process plugin initialization, and use
it to filter plugins to these capable of remote connections. This is
used to prevent 'process connect' from picking up a plugin that can only
be used locally, e.g. the legacy FreeBSD plugin.
Differential Revision: https://reviews.llvm.org/D91810
Instead of having a custom error message, propagate the llvm::Error from
SystemInitializerCommon. I didn't realize we had this overload until
Pavel mentioned it in D90987 today.
During active replay, the ::Initialize call is replayed like any other
SB API call and the return value is ignored. Since we can't intercept
this, we terminate here before the uninitialized debugger inevitably
crashes.
Differential revision: https://reviews.llvm.org/D90987
SBType::GetArrayElementType should return the actual type, not the
canonical type (e.g. int32_t, not the underlying int).
Added a test case to validate the new behavior. I also ran all other
tests on Linux (ninja check-lldb), they all pass.
Differential revision: https://reviews.llvm.org/D90318
For performance reasons the reproducers don't copy the files captured by
the file collector eagerly, but wait until the reproducer needs to be
generated.
This is a problematic when LLDB crashes and we have to do all this
signal-unsafe work in the signal handler. This patch uses a similar
trick to clang, which has the driver invoke a new cc1 instance to do all
this work out-of-process.
This patch moves the writing of the mapping file as well as copying over
the reproducers into a separate process spawned when lldb crashes.
Differential revision: https://reviews.llvm.org/D89600
Renamed ThreadIntelPT to TreaceThread, making it a top-level class. I noticed that this class can and shuld work for any trace plugin and there's nothing intel-pt specific in it.
With that TraceThread change, I was able to move most of the json file parsing logic to the base class TraceSessionFileParser, which makes adding new plug-ins easier.
This originally was part of https://reviews.llvm.org/D89283
Differential Revision: https://reviews.llvm.org/D89408
When doing a standalone build (i.e., building just LLDB against an existing
LLVM/Clang installation), LLDB is currently unable to find any Clang resource
directory that contains all the builtin headers we need to parse real source
code. This causes several tests that actually parse source code on disk within
the expression parser to fail (most notably nearly all the import-std-module
tests).
The reason why LLDB can't find the resource directory is that we search based on
the path of the LLDB shared library path. We assumed that the Clang resource
directory is in the same prefix and has the same relative path to the LLDB
shared library (e.g., `../clang/10.0.0/include`). However for a standalone build
where the existing Clang can be anywhere on the disk, so we can't just rely on
the hardcoded relative paths to the LLDB shared library.
It seems we can either solve this by copying the resource directory to the LLDB
installation, symlinking it there or we pass the path to the Clang installation
to the code that is trying to find the resource directory. When building the
LLDB framework we currently copy the resource directory over to the framework
folder (this is why the import-std-module are not failing on the Green Dragon
standalone bot).
This patch symlinks the resource directory of Clang into the LLDB build
directory. The reason for that is simply that this is only needed when running
LLDB from the build directory. Once LLDB and Clang/LLVM are installed the
already existing logic can find the Clang resource directory by searching
relative to the LLDB shared library.
Reviewed By: kastiglione, JDevlieghere
Differential Revision: https://reviews.llvm.org/D88581
Every call to the protected SBAddress constructor and the SetAddress
method takes the address of a valid object which means we might as well
pass it as a const reference instead of a pointer and drop the null
check.
Differential revision: https://reviews.llvm.org/D88249
In MinGW world, UNIX like lib prefix is preferred for the libraries.
This patch adjusts CMake files to do that.
Differential Revision: https://reviews.llvm.org/D87517
This patch adds a way to fetch breakpoint metadatas as a serialized
`Structured` Data format (JSON). This can be used by IDEs to update
their UI when a breakpoint is set or modified from the console.
rdar://11013798
Differential Revision: https://reviews.llvm.org/D87491
Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
Add a reproducer verifier that catches:
- Missing or invalid home directory
- Missing or invalid working directory
- Missing or invalid module/symbol paths
- Missing files from the VFS
The verifier is enabled by default during replay, but can be skipped by
passing --reproducer-no-verify.
Differential revision: https://reviews.llvm.org/D86497
This patch adds the ability to use a custom interpreter with the
`platform shell` command. If the user set the `-s|--shell` option
with the path to a binary, lldb passes it down to the platform's
`RunShellProcess` method and set it as the shell to use in
`ProcessLaunchInfo to run commands.
Note that not all the Platforms support running shell commands with
custom interpreters (i.e. RemoteGDBServer is only expected to use the
default shell).
This patch also makes some refactoring and cleanups, like swapping
CString for StringRef when possible and updating `SBPlatformShellCommand`
with new methods and a new constructor.
rdar://67759256
Differential Revision: https://reviews.llvm.org/D86667
Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
Add a reproducer verifier that catches:
- Missing or invalid home directory
- Missing or invalid working directory
- Missing or invalid module/symbol paths
- Missing files from the VFS
The verifier is enabled by default during replay, but can be skipped by
passing --reproducer-no-verify.
Differential revision: https://reviews.llvm.org/D86497
Extract all the provider related logic from Reproducer.h and move it
into its own header ReproducerProvider.h. These classes are seeing most
of the development these days and this reorganization reduces
incremental compilation from ~520 to ~110 files when making changes to
the new header.
Provider a wrapper around llvm::sys::path::home_directory in the
FileSystem class. This will make it possible for the reproducers to
intercept the call in a central place.
This patch adds the infrastructure to have language specific REPL init
files. It's the foundation work to a following patch that will introduce
Swift REPL init file.
When lldb is launched with the `--repl` option, it will look for a REPL
init file in the home directory and source it. This overrides the
default `~/.lldbinit`, which content might make the REPL behave
unexpectedly. If the REPL init file doesn't exists, lldb will fall back
to the default init file.
rdar://65836048
Differential Revision: https://reviews.llvm.org/D86242
Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
This patch is a big sed to rename the following variables:
s/PYTHON_LIBRARIES/Python3_LIBRARIES/g
s/PYTHON_INCLUDE_DIRS/Python3_INCLUDE_DIRS/g
s/PYTHON_EXECUTABLE/Python3_EXECUTABLE/g
s/PYTHON_RPATH/Python3_RPATH/g
I've also renamed the CMake module to better express its purpose and for
consistency with FindLuaAndSwig.
Differential revision: https://reviews.llvm.org/D85976
In D83876 the consensus seems that LLDB should never deleted orphaned modules
implicitly. However, SBDebugger::DeleteTarget is currently doing exactly that.
This code was added in 753406221b but I don't see
any explanation in the commit, so I think we should delete it.
Reviewed By: clayborg
Differential Revision: https://reviews.llvm.org/D83933
Right now the only places in the SB API where lldb:: ModuleSP instances are
destroyed are in SBDebugger::MemoryPressureDetected (where it's just attempted
but not guaranteed) and in SBDebugger::DeleteTarget (which will be removed in
D83933). Tests that directly create an lldb::ModuleSP and never create a target
therefore currently leak lldb::Module instances. This triggers the sanity checks
in lldbtest that make sure that the global module list is empty after a test.
This patch adds SBModule::GarbageCollectAllocatedModules as an explicit way to
clean orphaned lldb::ModuleSP instances. Also we now start calling this method
at the end of each test run and move the sanity check behind that call to make
this work. This way even tests that don't create targets can pass the sanity
check.
This fixes TestUnicodeSymbols.py when D83865 is applied (which makes that the
sanity checks actually fail the test).
Reviewed By: JDevlieghere
Differential Revision: https://reviews.llvm.org/D83876
Separate the CMake logic for Lua and Python to clearly distinguish
between code specific to either scripting language and the code shared
by both.
What this patch does is:
- Move Python specific code into the bindings/python subdirectory.
- Move the Lua specific code into the bindings/lua subdirectory.
- Add the _python suffix to Python specific functions/targets.
- Fix a dependency issue that would check the binding instead of
whether the scripting language is enabled.
Note that this patch also changes where the bindings are generated,
which might affect downstream projects that check them in.
Differential revision: https://reviews.llvm.org/D85708
Currently SBTarget::LaunchSimple creates a new LaunchInfo which means it
ignores any target properties that have been set. Instead, it should
start from the target's LaunchInfo and populated the specified fields.
Differential revision: https://reviews.llvm.org/D85235
This cleanup patch unifies all methods called GetByteSize() in the
ValueObject hierarchy to return an optional, like the methods in
CompilerType do. This means fewer magic 0 values, which could fix bugs
down the road in languages where types can have a size of zero, such
as Swift and C (but not C++).
Differential Revision: https://reviews.llvm.org/D84285
This re-lands the patch with bogus :m_byte_size(0) initalizations removed.
This cleanup patch unifies all methods called GetByteSize() in the
ValueObject hierarchy to return an optional, like the methods in
CompilerType do. This means fewer magic 0 values, which could fix bugs
down the road in languages where types can have a size of zero, such
as Swift and C (but not C++).
Differential Revision: https://reviews.llvm.org/D84285
The patch was reverted 27d52cd86a because of failures in
TestWeakSymbols.py. These have now been addressed in D83552.
The original commit message was:
This function was documented to overwrite entries with D76111, which was
adding a couple of similar functions. However, this function (unlike the
functions added in that patch) was/is not actually overwriting variables
-- any pre-existing variables would get ignored.
This behavior does not seem to be intentional. In fact, before the refactor in
D41359, this function could introduce duplicate entries, which could
have very surprising effects both inside lldb and on other applications
(some applications would take the first value, some the second one; in
lldb, attempting to unset a variable could make the second variable
become active, etc.).
Overwriting seems to be the most reasonable behavior here, so change the
code to match documentation.
Differential Revision: https://reviews.llvm.org/D83306
This patch has no effect for C and C++. In more dynamic languages,
such as Objective-C and Swift GetByteSize() needs to call into the
language runtime, so it's important to pass one in where possible. My
primary motivation for this is some work I'm doing on the Swift
branch, however, it looks like we are also seeing warnings in
Objective-C that this may resolve. Everything in the SymbolFile
hierarchy still passes in nullptrs, because we don't have an execution
context in SymbolFile, since SymbolFile transcends processes.
Differential Revision: https://reviews.llvm.org/D84267
Use a weak pointer to hold on to the the underlying thread plan in
SBThreadPlan. When the process continues, all the popped ThreadPlans get
discarded, and you can’t reuse them, so you have to create them anew.
Therefore the SBThreadPlan doesn’t need to keep the ThreadPlan alive.
This fixes the cleanup error in TestThreadPlanCommands.py and
TestStepScripted.py caused by the thread plans never being deleted.
Differential revision: https://reviews.llvm.org/D84210
This patch does several things that are all closely related:
- It introduces a new YamlRecorder as a counterpart to the existing
DataRecorder. As the name suggests the former serializes data as yaml
while the latter uses raw texts or bytes.
- It introduces a new MultiProvider base class which can be backed by
either a DataRecorder or a YamlRecorder.
- It reimplements the CommandProvider in terms of the new
MultiProvider.
Finally, it adds unit testing coverage for the MultiProvider, a naive
YamlProvider built on top of the new YamlRecorder and the existing
MutliLoader.
Differential revision: https://reviews.llvm.org/D83441
Summary:
This function was documented to overwrite entries with D76111, which was
adding a couple of similar functions. However, this function (unlike the
functions added in that patch) was/is not actually overwriting variables
-- any pre-existing variables would get ignored.
This behavior does not seem to be intentional. In fact, before the refactor in
D41359, this function could introduce duplicate entries, which could
have very surprising effects both inside lldb and on other applications
(some applications would take the first value, some the second one; in
lldb, attempting to unset a variable could make the second variable
become active, etc.).
Overwriting seems to be the most reasonable behavior here, so change the
code to match documentation.
Reviewers: clayborg, wallace, jingham
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D83306
This patch fixes a crash that is happening because of a null pointer
dereference in SBFrame.
StackFrame::GetRegisterContext says explicitly that you might not get
a valid RegisterContext back but the pointer wasn't tested before,
resulting in crashes. This should solve the issue.
rdar://54462095
Differential Revision: https://reviews.llvm.org/D83343
Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
This patch improves the error reporting for SBBreakpoint::AddName by
adding a new method `SBBreakpoint::AddNameWithErrorHandling` that returns
a SBError instead of a boolean.
This way, if the breakpoint naming failed in the backend, the client
(i.e. Xcode), will be able to report the reason of that failure to the
user.
rdar://64765461
Differential Revision: https://reviews.llvm.org/D82879
Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
This patch improves the error reporting for SBBreakpoint::AddName by
adding a new method `SBBreakpoint::AddNameWithErrorHandling` that returns
a SBError instead of a boolean.
This way, if the breakpoint naming failed in the backend, the client
(i.e. Xcode), will be able to report the reason of that failure to the
user.
rdar://64765461
Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
I was holding off on this change until we moved to C++14 as to not have
to convert llvm::make_unique to std::make_unique. That happened a while
ago so here's the first patch for the API which had a bunch of raw
`new`s.
The reproducer intentionally leak every object allocated during replay,
which means that modules never get orphaned. If this were to happen for
another reason, we might not be testing what we think we are. Assert
that there are no targets left at the end of a test and that the global
module cache is empty in the non-reproducer scenario.
Differential revision: https://reviews.llvm.org/D81612
Color the error: and warning: part of the CommandReturnObject output,
similar to how an error is printed from the driver when colors are
enabled.
Differential revision: https://reviews.llvm.org/D81058
This class should've been instrumented when it landed. Whether the class
is "highly mutable" or not doesn't affect that.
With this patch TestSBEnvironment.py now passes when replayed.
This makes it possible to instrument the call for the reproducers. This
fixes TestStructuredDataAPI.py with reproducer replay.
Differential revision: https://reviews.llvm.org/D80312
The reproducers' working directory is set to the current working
directory when they are initialized. While this is not optimal, as the
cwd can change during a debug session, it has been sufficient so far.
The current approach doesn't work for the API test suite however because
dotest temporarily changes the directory to where the test's Python file
lives.
This patch adds an API to tell the reproducers what to set the CWD to.
This is a NO-OP in every mode but capture.
Differential revision: https://reviews.llvm.org/D79825
Summary:
`CalculateSyntheticValue` and `GetSyntheticValue` have a `use_synthetic` parameter
that makes the function do nothing when it's false. We obviously always pass true
to the function (or check that the value we pass is true), because there really isn't
any point calling with function with a `false`. This just removes all of this.
Reviewers: labath, JDevlieghere, davide
Reviewed By: davide
Subscribers: davide
Differential Revision: https://reviews.llvm.org/D79568
This adds an RunCommandInterpreter overload that returns an instance of
SBCommandInterpreterRunResults. The goal is to avoid having to add more
and more overloads when we need more output arguments.
Differential revision: https://reviews.llvm.org/D79120
This patch adds a new class CommandInterpreterRunResult which will be
backing the SBCommandInterpreterRunResult. It keeps track of the number
of errors as well as the result which is an enum, as proposed by Pavel
in D79120. The command interpreter now populates the results directly,
instead of its own member variables.
Differential revision: https://reviews.llvm.org/D79209
Currently, `SBCommandInterpreterRunOptions` is defined in
`SBCommandInterpreter.h`. Given that the options are always passed by
reference, a forward declaration is sufficient.
That's not the case for `SBCommandInterpreterRunResults`, which we need
for a new overload for `RunCommandInterpreter` and that returns this new
class by value. We can't include `SBCommandInterpreter.h` because
`SBCommandInterpreter::GetDebugger()` returns SBDebugger by value and
therefore needs a full definition.
This patch moves the definition of `SBCommandInterpreterRunOptions` into
a new header. In a later patch, `SBCommandInterpreterRunResults` will
be defined in there as well, solving the aforementioned problem.
Differential revision: https://reviews.llvm.org/D79115
This implements Greg's suggestion from D78825 to include "auto handle
events" and "spawn thread" in CommandInterpreterRunOptions. This change
is in preparation for adding a new overload for RunCommandInterpreter
that takes only SBCommandInterpreterRunOptions and returns
SBCommandInterpreterRunResults.
Differential revision: https://reviews.llvm.org/D79108
It seems like only the unittests are building with
BUILD_WITH_INSTALL_RPATH set to OFF. Of course when I did my last change
I only ran check-lldb-unit. Not sure why this difference exists, why
would you even install the unittest?
For the LLDB framework we do need different build and install RPATHs.
Currently that logic lives downstream. I plan to upstream that in the
near future. For now I'm just trying to make it possible to run the
test.
The install name for the Python 3 framework in Xcode is relative to
the framework's location and not the dylib itself.
@rpath/Python3.framework/Versions/3.x/Python3
This means that we need to compute the path to the Python3.framework
and use that as the RPATH instead of the usual dylib's directory.
Several SB API functions return strings using (char*, size_t) output
arguments. During capture, we serialize an empty string for the char*
because the memory can be uninitialized.
During active replay, we have custom replay redirects that ensure that
we don't override the buffer from which we're reading, but rather write
to a buffer on the heap with the given length. This is sufficient for
the active reproducer use case, where we only care about the side
effects of the API calls, not the values actually returned.
This approach does not not work for passive replay because here we
ignore all the incoming arguments, and re-execute the current function
with the arguments deserialized from the reproducer. This means that
these function will update the deserialized copy of the arguments,
rather than whatever was passed in by the SWIG wrapper.
To solve this problem, this patch extends the reproducer instrumentation
to handle this special case for passive replay. We nog ignore the
replayer in the registry and the incoming char pointer, and instead
reinvoke the current method on the deserialized class, and populate the
output argument.
Differential revision: https://reviews.llvm.org/D77759
Support passive replay as proposed in the RFC [1] on lldb-dev and
described in more detail on the lldb website [2].
This patch extends the LLDB_RECORD macros to re-invoke the current
function with arguments deserialized from the reproducer. This relies on
the function being called in the exact same order as during replay. It
uses the same mechanism to toggle the API boundary as during recording,
which guarantees that only boundary crossing calls are replayed.
Another major change is that before this patch we could ignore the
result of an API call, because we only cared about the observable
behavior. Now we need to be able to return the replayed result to the
SWIG bindings.
We reuse a lot of the recording infrastructure, which can be a little
confusing. We kept the existing naming to limit the amount of churn, but
might revisit that in a future patch.
[1] http://lists.llvm.org/pipermail/lldb-dev/2020-April/016100.html
[2] https://lldb.llvm.org/resources/reproducers.html
Differential revision: https://reviews.llvm.org/D77602
Summary:
LLDB memory-maps large source files, and at the same time, caches
all source files in the Source Cache.
On Windows, memory-mapped source files are not writeable, causing
bad user experience in IDEs (such as errors when saving edited files).
IDEs should have the ability to disable the Source Cache at LLDB
startup, so that users can edit source files while debugging.
Bug: llvm.org/PR45310
Reviewers: labath, JDevlieghere, jingham
Reviewed By: labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D76804
Make it possible to capture reproducers from the API test suite. Given
the symmetry between capture and replay, this patch also adds the
necessary code for replay. For now this is a NO-OP until the
corresponding reproducer instrumentation changes land.
For more info please refer to the RFC on lldb-dev:
http://lists.llvm.org/pipermail/lldb-dev/2020-April/016100.html
Differential revision: https://reviews.llvm.org/D77588
If a plan is not private, "thread plan discard" can discard it. It would
not be hard to write reliable scripted plan if its subplans could get
removed out from under it.
Summary:
This adds support for commands created through the API to support autorepeat.
This covers the case of single word and multiword commands.
Comprehensive tests are included as well.
Reviewers: labath, clayborg
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D77444
Summary:
Usually when Clang emits an error Fix-It it does two things. It emits the diagnostic and then it fixes the
currently generated AST to reflect the applied Fix-It. While emitting the diagnostic is easy to implement,
fixing the currently generated AST is often tricky. That causes that some Fix-Its just keep the AST as-is or
abort the parsing process entirely. Once the parser stopped, any Fix-Its for the rest of the expression are
not detected and when the user manually applies the Fix-It, the next expression will just produce a new
Fix-It.
This is often occurring with quickly made Fix-Its that are just used to bridge temporary API changes
and that often are not worth implementing a proper API fixup in addition to the diagnostic. To still
give some kind of reasonable user-experience for users that have these Fix-Its and rely on them to
fix their expressions, this patch adds the ability to retry parsing with applied Fix-Its multiple time to
give the normal Fix-It experience where things Clang knows how to fix are not causing actual expression
error (at least when automatically applying Fix-Its is activated).
The way this is implemented is just by having another setting in the expression options that specify how
often we should try applying Fix-Its and then reparse the expression. The default setting is still 1 for everyone
so this should not affect the speed in which we fail to parse expressions.
Reviewers: jingham, JDevlieghere, friss, shafik
Reviewed By: shafik
Subscribers: shafik, abidh
Differential Revision: https://reviews.llvm.org/D77214
SBPlatform::GetHostPlatform was missing the reproducer instrumentation
macros. Fixed by running lldb-instr on SBPlatform.cpp:
$ ./bin/lldb-instr ../llvm-project/lldb/source/API/SBPlatform.cpp
Summary:
Dumping the frame using the user-set format could cause that a debug LLDB doesn't behave as a release LLDB,
which could potentially break replaying a reproducer.
Also it's kinda strange that the frame format set by the user is used in the internal log output.
Reviewers: JDevlieghere
Reviewed By: JDevlieghere
Differential Revision: https://reviews.llvm.org/D76685
Summary:
When no arguments or environment is provided to SBTarget::LaunchSimple,
make it use the values surrently set in the target properties. You can
get the current behavior back by passing an empty array instead.
It seems like using the target defaults is a much more intuitive
behavior for those APIs. It's unllikely that anyone passed NULL/None to
this API after having set properties in order to explicitely ignore them.
One direct application of this change is within the testsuite. We have
plenty of tests calling LaunchSimple and passing None as environment.
If you passed --inferior-env to dotest.py to, for example, set
(DY)LD_LIBRARY_PATH, it wouldn't be taken into account.
Reviewers: jingham, labath, #libc_abi!
Subscribers: libcxx-commits, lldb-commits
Tags: #lldb, #libc_abi
Differential Revision: https://reviews.llvm.org/D76045
Summary: Inspired by https://reviews.llvm.org/D74636, I'm introducing a basic version of Environment in the API. More functionalities can be added as needed.
Reviewers: labath, clayborg
Subscribers: mgorny, lldb-commits, diazhector98
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D76111
Summary: Inspired by https://reviews.llvm.org/D74636, I'm introducing a basic version of Environment in the API. More functionalities can be added as needed.
Reviewers: labath, clayborg
Subscribers: mgorny, lldb-commits, diazhector98
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D76111
Some functions in this file only use the "target" component of an
execution context. Adjust the argument lists to reflect that.
This avoids some defensive null checks and simplifies most of the
callers.
Some tests set settings and don't clean them up, this leads to side effects in other tests.
The patch removes a global debugger instance with a per-test debugger to avoid such effects.
From what I see, lldb.DBG was needed to determine the platform before a test is run,
lldb.selected_platform is used for this purpose now. Though, this required adding a new function
to the SBPlatform interface.
Differential Revision: https://reviews.llvm.org/D74903
Summary:
This gets rid of some nesting and of the raw char* variable that caused
the memory management bug we hit recently.
This commit also removes the fallback code which should trigger when
the StopInfo provides no stop description. All currently implemented
StopInfos have a `GetDescription()` method that shouldn't return an
empty description.
Reviewers: JDevlieghere, labath, mib
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D74157
This patch moves the SB API method GetExtendedCrashInformation from
SBTarget to SBProcess since it only makes sense to call this method on a
sane process which might not be the case on a SBTarget object.
It also addresses some feedbacks received after landing the first patch
for the 'crash-info' feature.
Differential Revision: https://reviews.llvm.org/D75049
Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
Currently, in macOS, when a process crashes, lldb halts inside the
implementation disassembly without yielding any useful information.
The only way to get more information is to detach from the process, then wait
for ReportCrash to generate a report, find the report, then see what error
message was included in it. Instead of waiting for this to happen, lldb could
locate the error_string and make it available to the user.
This patch addresses this issue by enabling the user to fetch extended
crash information for crashed processes using `process status --verbose`.
Depending on the platform, this will try to gather different crash information
into an structured data dictionnary. This dictionnary is generic and extensible,
as it contains an array for each different type of crash information.
On Darwin Platforms, lldb will iterate over each of the target's images,
extract their `__crash_info` section and generated a StructuredData::Array
containing, in each entry, the module spec, its UUID, the crash messages
and the abort cause. The array will be inserted into the platform's
`m_extended_crash_info` dictionnary and `FetchExtendedCrashInformation` will
return its JSON representation like this:
```
{
"crash-info annotations": [
{
"abort-cause": 0,
"image": "/usr/lib/system/libsystem_malloc.dylib",
"message": "main(76483,0x1000cedc0) malloc: *** error for object 0x1003040a0: pointer being freed was not allocated",
"message2": "",
"uuid": "5747D0C9-900D-3306-8D70-1E2EA4B7E821"
},
...
],
...
}
```
This crash information can also be fetched using the SB API or lldb-rpc protocol
using SBTarget::GetExtendedCrashInformation().
rdar://37736535
Differential Revision: https://reviews.llvm.org/D74657
Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
This patch changes the way we initialize and terminate the plugins in
the system initializer. It uses an approach similar to LLVM's
TARGETS_TO_BUILD with a def file that enumerates the plugins.
Previous attempts to land this failed on the Windows bot because there's
a dependency between the different process plugins. Apparently
ProcessWindowsCommon needs to be initialized after all other process
plugins but before ProcessGDBRemote.
Differential revision: https://reviews.llvm.org/D73067
The WASM and Hexagon plugin check the ArchType rather than the OSType,
so explicitly reject those in the DynamicLoaderStatic.
Differential revision: https://reviews.llvm.org/D74780
Generate the LLDB_PLUGIN_DECLARE macros with CMake and a def file. I'm
landing D73067 in pieces so I can bisect what exactly is breaking the
Windows bot.
Other plugins depend on DynamicLoaderDarwinKernel and which means we
cannot conditionally enable/build this plugin based on the target
platform. This means that it will be past of the list of plugins
initialized once that's autogenerated.
Summary:
All of our lookup APIs either use `CompilerDeclContext &` or `CompilerDeclContext *` semi-randomly it seems.
This leads to us constantly converting between those two types (and doing nullptr checks when going from
pointer to reference). It also leads to the confusing situation where we have two possible ways to express
that we don't have a CompilerDeclContex: either a nullptr or an invalid CompilerDeclContext (aka a default
constructed CompilerDeclContext).
This moves all APIs to use references and gets rid of all the nullptr checks and conversions.
Reviewers: labath, mib, shafik
Reviewed By: labath, shafik
Subscribers: shafik, arphaman, abidh, JDevlieghere, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D74607
LLDB has a few different styles of header guards and they're not very
consistent because things get moved around or copy/pasted. This patch
unifies the header guards across LLDB and converts everything to match
LLVM's style.
Differential revision: https://reviews.llvm.org/D74743
Michał Górny