Specializations of the Platform class print the kernel after calling the
super method. By printing the kernel at the end in the super class, we
guarantee the order is the same on different platforms.
This is how it should've been and brings it more in line with
std::string_view. There should be no functional change here.
This is mostly mechanical from a custom clang-tidy check, with a lot of
manual fixups. It uncovers a lot of minor inefficiencies.
This doesn't actually modify StringRef yet, I'll do that in a follow-up.
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
Summary:
This patch re-types everywhere that passes a File::OpenOptions
as a uint32_t so it actually uses File::OpenOptions.
It also converts some OpenOptions related functions that fail
by returning 0 or NULL into llvm::Expected
split off from https://reviews.llvm.org/D68737
Reviewers: JDevlieghere, jasonmolenda, labath
Reviewed By: labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68853
llvm-svn: 374817
Summary:
This patch removes File::SetStream() and File::SetDescriptor(),
and replaces most direct uses of File with pointers to File.
Instead of calling SetStream() on a file, we make a new file and
replace it.
My ultimate goal here is to introduce a new API class SBFile, which
has full support for python io.IOStream file objects. These can
redirect read() and write() to python code, so lldb::Files will
need a way to dispatch those methods. Additionally it will need some
form of sharing and assigning files, as a SBFile will be passed in and
assigned to the main IO streams of the debugger.
In my prototype patch queue, I make File itself copyable and add a
secondary class FileOps to manage the sharing and dispatch. In that
case SBFile was a unique_ptr<File>.
(here: https://github.com/smoofra/llvm-project/tree/files)
However in review, Pavel Labath suggested that it be shared_ptr instead.
(here: https://reviews.llvm.org/D67793)
In order for SBFile to use shared_ptr<File>, everything else should
as well.
If this patch is accepted, I will make SBFile use a shared_ptr
I will remove FileOps from future patches and use subclasses of File
instead.
Reviewers: JDevlieghere, jasonmolenda, zturner, jingham, labath
Reviewed By: labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D67891
llvm-svn: 373090
Summary:
This patch converts FileSystem::Open from this prototype:
Status
Open(File &File, const FileSpec &file_spec, ...);
to this one:
llvm::Expected<std::unique_ptr<File>>
Open(const FileSpec &file_spec, ...);
This is beneficial on its own, as llvm::Expected is a more modern
and recommended error type than Status. It is also a necessary step
towards https://reviews.llvm.org/D67891, and further developments
for lldb_private::File.
Reviewers: JDevlieghere, jasonmolenda, labath
Reviewed By: labath
Subscribers: mgorny, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D67996
llvm-svn: 373003
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
Summary:
This is a bit more explicit, and makes it possible to build LLDB without
varying the -I lines per-directory.
(The latter is useful because many build systems only allow this to be
configured per-library, and LLDB is insufficiently layered to be split into
multiple libraries on stricter build systems).
(My comment on D65185 has some more context)
Reviewers: JDevlieghere, labath, chandlerc, jdoerfert
Reviewed By: labath
Subscribers: mgorny, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D65397
Patch by Sam McCall!
llvm-svn: 367241
Right now our Properties.inc only generates the initializer for the
options list but not the array declaration boilerplate around it. As the
array definition is identical for all arrays, we might as well also let
the Properties.inc generate it alongside the initializers.
Unfortunately we cannot do the same for enums, as there's this magic
ePropertyExperimental, which needs to come at the end to be interpreted
correctly. Hopefully we can get rid of this in the future and do the
same for the property enums.
Differential revision: https://reviews.llvm.org/D65353
llvm-svn: 367238
Property definitions are currently defined in a PropertyDefinition array
and have a corresponding enum to index in this array. Unfortunately this
is quite error prone. Indeed, just today we found an incorrect merge
where a discrepancy between the order of the enum values and their
definition caused the test suite to fail spectacularly.
Tablegen can streamline the process of generating the property
definition table while at the same time guaranteeing that the enums stay
in sync. That's exactly what this patch does. It adds a new tablegen
file for the properties, building on top of the infrastructure that
Raphael added recently for the command options. It also introduces two
new tablegen backends: one for the property definitions and one for
their corresponding enums.
It might be worth mentioning that I generated most of the tablegen
definitions from the existing property definitions, by adding a dump
method to the struct. This seems both more efficient and less error
prone that copying everything over by hand. Only Enum properties needed
manual fixup for the EnumValues and DefaultEnumValue fields.
Differential revision: https://reviews.llvm.org/D65185
llvm-svn: 367058
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
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
My apologies for the large patch. With the exception of ConstString.h
itself it was entirely produced by sed.
ConstString has exactly one const char * data member, so passing a
ConstString by reference is not any more efficient than copying it by
value. In both cases a single pointer is passed. But passing it by
value makes it harder to accidentally return the address of a local
object.
(This fixes rdar://problem/48640859 for the Apple folks)
Differential Revision: https://reviews.llvm.org/D59030
llvm-svn: 355553
This was reverted because it breaks the GreenDragon bot, but
the reason for the breakage is lost, so I'm resubmitting this
now so we can find out what the problem is.
llvm-svn: 355528
Summary:
This creates an abstract base class called "UserIDResolver", which can
be implemented to provide user/group ID resolution capabilities for
various objects. Posix host implement a PosixUserIDResolver, which does
that using posix apis (getpwuid and friends). PlatformGDBRemote
forwards queries over the gdb-remote link, etc. ProcessInstanceInfo
class is refactored to make use of this interface instead of taking a
platform pointer as an argument. The base resolver class already
implements caching and thread-safety, so implementations don't have to
worry about that.
The main motivating factor for this was to remove external dependencies
from the ProcessInstanceInfo class (so it can be put next to
ProcessLaunchInfo and friends), but it has other benefits too:
- ability to test the user name caching code
- ability to test ProcessInstanceInfo dumping code
- consistent interface for user/group resolution between Platform and
Host classes.
Reviewers: zturner, clayborg, jingham
Subscribers: mgorny, lldb-commits
Differential Revision: https://reviews.llvm.org/D58167
llvm-svn: 355323
Host had a function to get the UnixSignals instance corresponding
to the current host architecture. This means that Host had to
include a file from Target. To break this dependency, just make
this a static function directly in UnixSignals. We already have
the function UnixSignals::Create(ArchSpec) anyway, so we just
need to have UnixSignals::CreateForHost() which determines which
value to pass for the ArchSpec.
The goal here is to eventually break the Host->Target->Host
circular dependency.
Differential Revision: https://reviews.llvm.org/D57780
llvm-svn: 354168
Unlike std::make_unique, which is only available since C++14,
std::make_shared is available since C++11. Not only is std::make_shared
a lot more readable compared to ::reset(new), it also performs a single
heap allocation for the object and control block.
Differential revision: https://reviews.llvm.org/D57990
llvm-svn: 353764
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
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
in one packet from 1k bytes to 16k bytes. Sending a large file to an
iOS device directly connected by USB cable, to lldb-server running in
platform mode, this speeds up the file xfer by 77%. Sending the file
in 32k blocks speeds up the file xfer by 80% versus 1k blocks, starting
with 16k to make sure we don't have any problems with android testing.
We may not have the same perf characteristics over ethernet, but with
USB it's faster to send fewer larger packets than many small packets.
llvm-svn: 348557
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
This patch modifies how we open File instances in LLDB. Rather than
passing a path or FileSpec to the constructor, we now go through the
virtual file system. This is needed in order to make things work with
the VFS in the future.
Differential revision: https://reviews.llvm.org/D54020
llvm-svn: 346049
This patch removes the logic for resolving paths out of FileSpec and
updates call sites to rely on the FileSystem class instead.
Differential revision: https://reviews.llvm.org/D53915
llvm-svn: 345890
This patch removes the Exists method from FileSpec and updates its uses
with calls to the FileSystem.
Differential revision: https://reviews.llvm.org/D53845
llvm-svn: 345854
This patch removes the GetPermissions and GetReadable methods from
FileSpec and updates its uses with calls to the FileSystem.
Differential revision: https://reviews.llvm.org/D53831
llvm-svn: 345843
This patch moves the EnumerateDirectory functionality and related enum
and typedef from FileSpec to FileSystem.
This is part of a set of patches that extracts file system related
convenience methods from FileSpec. The long term goal is to remove this
method altogether and use the iterators directly, but for introducing
the VFS into LLDB this change is sufficient.
Differential revision: https://reviews.llvm.org/D53785
llvm-svn: 345800
This patch extends the FileSystem class with a bunch of functions that
are currently implemented as methods of the FileSpec class. These
methods will be removed in future commits and replaced by calls to the
file system.
The new functions are operated in terms of the virtual file system which
was recently moved from clang into LLVM so it could be reused in lldb.
Because the VFS is stateful, we turned the FileSystem class into a
singleton.
Differential revision: https://reviews.llvm.org/D53532
llvm-svn: 345783
Add support in ProcessGDBRemote::GetGDBServerRegisterInfo
for recognizing a generic "arm" architecture that will be used if
nothing better is available so that we don't ignore the register
definitions if we didn't already have an architecture set.
Also in ProcessGDBRemote::DoConnectRemote don't set the target
arch unless we have a valid architecture to set it to.
Platform::ConnectProcess will try to get the current target's
architecture, or the default architecture, when creating the
target for the connection to be attempted. If lldb was started
with a target binary, we want to create this target with that
architecture in case the remote gdb stub doesn't supply a
qHostInfo arch.
Add logging to Target::MergeArchitecture.
<rdar://problem/34916465>
llvm-svn: 345106
This is an NFC commit to refactor the "load dependent files" parameter
from a boolean to an enum value. We want to be able to specify a
default, in which case we decide whether or not to load the dependent
files based on whether the target is an executable or not (i.e. a
dylib).
This is a dependency for D51934.
Differential revision: https://reviews.llvm.org/D51859
llvm-svn: 342633
This provides an efficient (at least on Posix platforms) way to offload to the
target process the search & loading of a library when all we have are the
library name and a set of potential candidate locations.
<rdar://problem/40905971>
llvm-svn: 335912
If we have a function with signature f(addr_t, AddressClass), it is easy to muddle up the order of arguments without any warnings from compiler. 'enum class' prevents passing integer in place of AddressClass and vice versa.
llvm-svn: 335599
Summary:
This has multiple advantages:
- we need only one function argument/instance variable instead of three
- no need to default initialize variables
- no custom parsing code
- VersionTuple has comparison operators, which makes version comparisons much
simpler
Reviewers: zturner, friss, clayborg, jingham
Subscribers: emaste, lldb-commits
Differential Revision: https://reviews.llvm.org/D47889
llvm-svn: 334950
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
Summary:
There was some confusion in the code about how to represent process
environment. Most of the code (ab)used the Args class for this purpose,
but some of it used a more basic StringList class instead. In either
case, the fact that the underlying abstraction did not provide primitive
operations for the typical environment operations meant that even a
simple operation like checking for an environment variable value was
several lines of code.
This patch adds a separate Environment class, which is essentialy a
llvm::StringMap<std::string> in disguise. To standard StringMap
functionality, it adds a couple of new functions, which are specific to
the environment use case:
- (most important) envp conversion for passing into execve() and likes.
Instead of trying to maintain a constantly up-to-date envp view, it
provides a function which creates a envp view on demand, with the
expectation that this will be called as the very last thing before
handing the value to the system function.
- insert(StringRef KeyEqValue) - splits KeyEqValue into (key, value)
pair and inserts it into the environment map.
- compose(value_type KeyValue) - takes a map entry and converts in back
into "KEY=VALUE" representation.
With this interface most of the environment-manipulating code becomes
one-liners. The only tricky part was maintaining compatibility in
SBLaunchInfo, which expects that the environment entries are accessible
by index and that the returned const char* is backed by the launch info
object (random access into maps is hard and the map stores the entry in
a deconstructed form, so we cannot just return a .c_str() value). To
solve this, I have the SBLaunchInfo convert the environment into the
"envp" form, and use it to answer the environment queries. Extra code is
added to make sure the envp version is always in sync.
(This also improves the layering situation as Args was in the Interpreter module
whereas Environment is in Utility.)
Reviewers: zturner, davide, jingham, clayborg
Subscribers: emaste, lldb-commits, mgorny
Differential Revision: https://reviews.llvm.org/D41359
llvm-svn: 322174
Summary:
In D39387, I was quick to jump to conclusion that ArchSpec has no
external dependencies. It turns there still was one call to
HostInfo::GetArchitecture left -- for implementing the "systemArch32"
architecture and friends.
Since GetAugmentedArchSpec is the place we handle these "incomplete"
triples that don't specify os or vendor and "systemArch" looks very much
like an incomplete triple, I move its handling there.
After this ArchSpec *really* does not have external dependencies, and
I'll move it to the Utility module as a follow-up.
Reviewers: zturner, clayborg, jingham
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D39896
llvm-svn: 318046
Summary:
ArchSpec::SetTriple was taking a Platform as an argument, and used it to
fill in missing pieces of the specified triple. I invert the dependency
by moving this code to other classes. For this purpose, I've created
three new functions.
- HostInfo::GetAugmentedArchSpec: fills in the triple using the host
platform (this used to be implemented by passing a null platform
pointer). By putting this code in the Host module, we can provide a
way to anyone who does not have a platform instance (lldb-server) an
easy way to get Host data.
- Platform::GetAugmentedArchSpec: if you have a platform instance, you
can call this to let it fill in the triple.
- static Platform::GetAugmentedArchSpec: implements the "if platform ==
0 then use_host() else use_platform()" part.
Reviewers: zturner, jingham, clayborg
Subscribers: mgorny, javed.absar, lldb-commits
Differential Revision: https://reviews.llvm.org/D39387
llvm-svn: 316987
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
Jonas Devlieghere