Commit Graph

281 Commits

Author SHA1 Message Date
Raphael Isemann 9df80e8248 [cmake] Remove unused ${LLDB_PLUGINS} dependency from our Objective-C++ CMake config
Summary:
LLDB_PLUGINS doesn't exist as a variable, so this line doesn't add any dependencies and is
just confusing. It seems this slipped in from the gdb-remote CMake I was using as a CMake template.

The gdb-remote CMake itself is using a local LLDB_PLUGINS variable, so that code is fine.

Reviewers: davide

Reviewed By: davide

Subscribers: davide, mgorny, lldb-commits

Differential Revision: https://reviews.llvm.org/D49695

llvm-svn: 337741
2018-07-23 21:14:52 +00:00
Tatyana Krasnukha 04803b3ef2 Change AddressClass type from 'enum' to 'enum class'.
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
2018-06-26 13:06:54 +00:00
Jason Molenda 85afc93f8a Correct the pathname that PlatformDarwinKernel::ExamineKextForMatchingUUID
passes to the recursive search function so we only recursively
search the kext bundle directory, instead of its parent directory.

<rdar://problem/41227170> 

Differential Revision: https://reviews.llvm.org/D48302

llvm-svn: 335079
2018-06-19 21:39:10 +00:00
Pavel Labath 60f028ff03 Replace HostInfo::GetLLDBPath with specific functions
Summary:
Instead of a function taking an enum value determining which path to
return, we now have a suite of functions, each returning a single path
kind. This makes it easy to move the python-path function into a
specific plugin in a follow-up commit.

All the users of GetLLDBPath were converted to call specific functions
instead. Most of them were hard-coding the enum value anyway, so this
conversion was simple. The only exception was SBHostOS, which I've
changed to use a switch on the incoming enum value.

Reviewers: clayborg, zturner

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D48272

llvm-svn: 335052
2018-06-19 15:09:07 +00:00
Pavel Labath 2272c4811f Use llvm::VersionTuple instead of manual version marshalling
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
2018-06-18 15:02:23 +00:00
Pavel Labath 9cf22d03dd Fix includes in PlatformAppleSimulator.h
This unbreaks the cmake build. Other plugins also use the include paths
starting with Plugins/..., so I am hoping this will work for the xcode build
too.

llvm-svn: 334697
2018-06-14 09:08:54 +00:00
Jason Molenda 8f4edde9aa fix cmake include path.
llvm-svn: 334680
2018-06-14 01:29:18 +00:00
Jason Molenda 4c53fffff9 Move the header file to be in the same new place as the .mm file.
llvm-svn: 334667
2018-06-13 22:37:01 +00:00
Jonas Devlieghere 937348cd13 [FileSpec] Make style argument mandatory for SetFile. NFC
SetFile has an optional style argument which defaulted to the native
style. This patch makes that argument mandatory so clients of the
FileSpec class are forced to think about the correct syntax.

At the same time this introduces a (protected) convenience method to
update the file from within the FileSpec class that keeps the current
style.

These two changes together prevent a potential pitfall where the style
might be forgotten, leading to the path being updated and the style
unintentionally being changed to the host style.

llvm-svn: 334663
2018-06-13 22:08:14 +00:00
Jonas Devlieghere ad8d48f903 [FileSpec] Delegate common operations to llvm::sys::path
With the recent changes in FileSpec to use LLVM's path style, it is
possible to delegate a bunch of common path operations to LLVM's path
helpers. This means we only have to maintain a single implementation and
at the same time can benefit from the efforts made by the rest of the
LLVM community.

This is part one of a set of patches. There was no obvious way to split
this so I just worked from top to bottom.

Differential revision: https://reviews.llvm.org/D48084

llvm-svn: 334615
2018-06-13 16:23:21 +00:00
Raphael Isemann 2c77eefe85 Add modules support for lldb headers in include/
Summary:
This patch adds a modulemap which allows compiling the lldb headers into C++ modules
(for example in builds with LLVM_ENABLE_MODULES=On).

Even though most of the affected code has been cleaned up to work with the more strict
C++ module semantics, there are still some workarounds left in the current modulemap
(the most obvious one is the big `lldb` wrapper module).

It also moves the Obj-C++ files in lldb to their own subdirectories. This was necessary
because we need to filter out the modules flags for this code.

Note: With the latest clang and libstdc++ it seems necessary to have a STL C++ module
to get a working LLVM_ENABLE_MODULES build for lldb. Otherwise clang will falsely
detect ODR violations in the textually included STL code inside the lldb modules.

Reviewers: aprantl, bruno

Reviewed By: aprantl, bruno

Subscribers: mgorny, yamaguchi, v.g.vassilev, lldb-commits

Differential Revision: https://reviews.llvm.org/D47929

llvm-svn: 334611
2018-06-13 15:50:45 +00:00
Pavel Labath d8c6290ba4 Move VersionTuple from clang/Basic to llvm/Support
Summary:
This kind of functionality is useful to other project apart from clang.
LLDB works with version numbers a lot, but it does not have a convenient
abstraction for this. Moving this class to a lower level library allows
it to be freely used within LLDB.

Since this class is used in a lot of places in clang, and it used to be
in the clang namespace, it seemed appropriate to add it to the list of
adopted classes in LLVM.h to avoid prefixing all uses with "llvm::".

Also, I didn't find any tests specific for this class, so I wrote a
couple of quick ones for the more interesting bits of functionality.

Reviewers: zturner, erik.pilkington

Subscribers: mgorny, cfe-commits, llvm-commits

Differential Revision: https://reviews.llvm.org/D47887

llvm-svn: 334399
2018-06-11 10:28:04 +00:00
Jonas Devlieghere e6f3ecd52c [Platform] Accept arbitrary kext variants
When loading kexts in PlatformDarwinKernel, we use the BundleID as the
filename to to create shared modules. In GetSharedModule we call
ExamineKextForMatchingUUID for any BundleID it finds that is a match, to
see if the UUID is also a match. Until now we were using
Host::ResolveExecutableInBundle which calls a CoreFoundation API to
obtain the executable. However, it's possible that the executable has a
variant suffix (e.g. foo_development) and these files were ignored.

This patch replaces that call with logic that looks for all the binaries
in the bundle. Because of the way ExamineKextForMatchingUUID works, it's
fine to try to load executables that are not valid and we can just
iterate over the list until we found a match.

Differential revision: https://reviews.llvm.org/D47539

llvm-svn: 334205
2018-06-07 16:10:42 +00:00
Jonas Devlieghere f0f53b86d9 Remove infinite recursion due to FileSpec change.
Fixes infinite recursion due to change in how FileSpec deals with
removing the last path component.

Fixes timout for TestMiniDumpNew.py

llvm-svn: 333666
2018-05-31 16:28:29 +00:00
Bob Wilson c791417a6d NFC: Fix some comment typos.
llvm-svn: 333364
2018-05-28 04:22:07 +00:00
Pavel Labath 4c7763eb2f Enable ProcessMachCore plugin on non-apple platforms
Summary:
The plugin already builds fine on other platforms (linux, at least). All
that was necessary was to revitalize the hack in PlatformDarwinKernel
(not a very pretty hack, but it gets us going at least).

I haven't done a thorough investigation of the state of the plugin on
other platforms, but at least the two core file tests we have seem to
pass, so I enable them.

Reviewers: JDevlieghere, jasonmolenda

Subscribers: lldb-commits, mgorny

Differential Revision: https://reviews.llvm.org/D47133

llvm-svn: 332997
2018-05-22 16:33:43 +00:00
Greg Clayton 19e9884609 Fix the code that gets the Xcode path. After path normalization this could was failing.
This meant if the "debugserver" binary was removed from the LLDB.framework, lldb wouldn't be able to find debugserver.

llvm-svn: 332050
2018-05-10 22:09:01 +00:00
Pavel Labath 19dd1a0ea6 Convert all RunShellCommand functions to use the Timeout class
this completes the Timeout migration started in r331880 with the
Predicate class.

llvm-svn: 331970
2018-05-10 10:46:03 +00:00
Adrian Prantl 05097246f3 Reflow paragraphs in comments.
This is intended as a clean up after the big clang-format commit
(r280751), which unfortunately resulted in many of the comment
paragraphs in LLDB being very hard to read.

FYI, the script I used was:

import textwrap
import commands
import os
import sys
import re
tmp = "%s.tmp"%sys.argv[1]
out = open(tmp, "w+")
with open(sys.argv[1], "r") as f:
  header = ""
  text = ""
  comment = re.compile(r'^( *//) ([^ ].*)$')
  special = re.compile(r'^((([A-Z]+[: ])|([0-9]+ )).*)|(.*;)$')
  for line in f:
      match = comment.match(line)
      if match and not special.match(match.group(2)):
          # skip intentionally short comments.
          if not text and len(match.group(2)) < 40:
              out.write(line)
              continue

          if text:
              text += " " + match.group(2)
          else:
              header = match.group(1)
              text = match.group(2)

          continue

      if text:
          filled = textwrap.wrap(text, width=(78-len(header)),
                                 break_long_words=False)
          for l in filled:
              out.write(header+" "+l+'\n')
              text = ""

      out.write(line)

os.rename(tmp, sys.argv[1])

Differential Revision: https://reviews.llvm.org/D46144

llvm-svn: 331197
2018-04-30 16:49:04 +00:00
Pavel Labath 145d95c964 Move Args.cpp from Interpreter to Utility
Summary:
The Args class is used in plenty of places besides the command
interpreter (e.g., anything requiring an argc+argv combo, such as when
launching a process), so it needs to be in a lower layer. Now that the
class has no external dependencies, it can be moved down to the Utility
module.

This removes the last (direct) dependency from the Host module to
Interpreter, so I remove the Interpreter module from Host's dependency
list.

Reviewers: zturner, jingham, davide

Subscribers: mgorny, lldb-commits

Differential Revision: https://reviews.llvm.org/D45480

llvm-svn: 330200
2018-04-17 18:53:35 +00:00
Pavel Labath 62930e57eb Add Utility/Environment class for handling... environments
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
2018-01-10 11:57:31 +00:00
Pavel Labath 50251fc715 Make sure DataBufferLLVM contents are writable
Summary:
We sometimes need to write to the object file we've mapped into memory,
generally to apply relocations to debug info sections. We've had that
ability before, but with the introduction of DataBufferLLVM, we have
lost it, as the underlying llvm class (MemoryBuffer) only supports
read-only mappings.

This switches DataBufferLLVM to use the new llvm::WritableMemoryBuffer
class as a back-end, as this one guarantees to return a writable buffer.

This removes the need for the "Private" flag to the DataBufferLLVM
creation functions, as it was really used to mean "writable". The LLVM
function also does not have the NullTerminate flag, so I've modified our
clients to not require this feature and removed that flag as well.

Reviewers: zturner, clayborg, jingham

Subscribers: emaste, aprantl, arichardson, krytarowski, lldb-commits

Differential Revision: https://reviews.llvm.org/D40079

llvm-svn: 321255
2017-12-21 10:54:30 +00:00
Pavel Labath 293d6c39d3 Fix osx build broken in r320346
llvm-svn: 320349
2017-12-11 11:12:22 +00:00
Pavel Labath 07d6f881e7 Move PseudoTerminal to the lldb_private namespace
lldb_utility doesn't make sense, as it is no longer even living in the
"utility" module.

llvm-svn: 320346
2017-12-11 10:09:14 +00:00
Jason Molenda 1bfb9f1c0f Change the ordering that we search for kexts and kernels on the local
computer.  When doing kernel debugging, lldb scrapes around a few 
well-known locations to find kexts and kernels.  It builds up two
lists - kexts and kernels with dSYM, and kexts and kernels without dSYMs.
After both lists have failed to provide a file, then we'll call out
to things like the DebugSymbols framework to find a kext/kernel.

This meant that when you had a kext/kernel on the local computer that
did not have debug information, lldb wouldn't consult DebugSymbols etc
once it'd locked on to one of these no-debug-info binaries on the local
computer.

Reorder this so we give DebugSymbols etc a shot at finding a debug-info
file before we use any of the no-debug-info binaries that were found on
the system.

<rdar://problem/34434440> 

llvm-svn: 320241
2017-12-09 03:28:15 +00:00
Jason Molenda 6e78b6bd8e Update PlatformDarwin::GetDeveloperDir to handle the two
most common cases where the Xcode.app bundle puts lldb -
either as a default part of the bundle, or in a toolchain
subdirectory, so the platform subclasses can find files
relative to this directory.

Dropped support for handling the case where the lldb
framework was in /Library/PrivateFrameworks.  I think
this was intended to handle the case where lldb is installed
in / (outside the Xcode.app bundle) - but in that case, we
can look in the raw directory file paths to find anything.

<rdar://problem/35285622> 

llvm-svn: 320240
2017-12-09 03:06:19 +00:00
Pavel Labath 2da1b5970c Fix netbsd, freebsd and osx builds for ArchSpec move
llvm-svn: 318052
2017-11-13 16:47:37 +00:00
Pavel Labath 5f19b90783 Move ArchSpec to the Utility module
The rationale here is that ArchSpec is used throughout the codebase,
including in places which should not depend on the rest of the code in
the Core module.

This commit touches many files, but most of it is just renaming of
 #include lines. In a couple of cases, I removed the #include ArchSpec
line altogether, as the file was not using it. In one or two places,
this necessitated adding other #includes like lldb-private-defines.h.

llvm-svn: 318048
2017-11-13 16:16:33 +00:00
Pavel Labath 38d0632e6a Move Timer and TraceOptions from Core to Utility
Summary:
The classes have no dependencies, and they are used both by lldb and
lldb-server, so it makes sense for them to live in the lowest layers.

Reviewers: zturner, jingham

Subscribers: emaste, mgorny, lldb-commits

Differential Revision: https://reviews.llvm.org/D34746

llvm-svn: 306682
2017-06-29 14:32:17 +00:00
Jason Molenda 5f52e10204 Move the code to find a binary in a bundle in the target.exec-search-paths
from PlatformRemoteDarwinDevice into PlatformDarwin, and have both
PlatformRemoteDarwinDevice and PlatformMacOSX call it there.
<rdar://problem/31825940> 

llvm-svn: 304520
2017-06-02 05:17:19 +00:00
Zachary Turner 97206d5727 Rename Error -> Status.
This renames the LLDB error class to Status, as discussed
on the lldb-dev mailing list.

A change of this magnitude cannot easily be done without
find and replace, but that has potential to catch unwanted
occurrences of common strings such as "Error".  Every effort
was made to find all the obvious things such as the word "Error"
appearing in a string, etc, but it's possible there are still
some lingering occurences left around.  Hopefully nothing too
serious.

llvm-svn: 302872
2017-05-12 04:51:55 +00:00
Jason Molenda 36162d0ffb Add extra logging for when lldb is looking for kernels and kexts.
<rdar://problem/26863256> 

llvm-svn: 300810
2017-04-20 02:02:25 +00:00
Jason Molenda 1781d6f732 Unify the common code in the ios, tvos, watchos platforms into a single
PlatformRemoveDarwinDevice class, subclassed to those three so they can 
provide their specific information.

<rdar://problem/30159764> 

llvm-svn: 300512
2017-04-17 22:52:20 +00:00
Zachary Turner 3eb2b44d31 Delete some more dead includes.
This breaks the cycle between Target and PluginLanguageC++, reducing
the overall cycle count from 43 to 42.

llvm-svn: 298561
2017-03-22 23:33:16 +00:00
Zachary Turner 5713a05b5b Move FileSpec from Host -> Utility.
llvm-svn: 298536
2017-03-22 18:40:07 +00:00
Zachary Turner 076a259938 Delete LLDB's MD5 code. Use LLVM instead.
Differential Revision: https://reviews.llvm.org/D31108

llvm-svn: 298325
2017-03-20 23:54:54 +00:00
Zachary Turner d3d95fd66a Remove FileSystem::MakeDirectory.
Have callers use llvm::sys::fs::create_directory() instead.

Differential Revision: https://reviews.llvm.org/D31086

llvm-svn: 298203
2017-03-19 05:48:47 +00:00
Zachary Turner 7d86ee5ab0 Resubmit FileSystem changes.
This was originall reverted due to some test failures in
ModuleCache and TestCompDirSymlink.  These issues have all
been resolved and the code now passes all tests.

Differential Revision: https://reviews.llvm.org/D30698

llvm-svn: 297300
2017-03-08 17:56:08 +00:00
Pavel Labath 30e6cbfcfc Revert "Use LLVM for all stat-related functionality."
this reverts r297116 because it breaks the unittests and
TestCompDirSymlink. The ModuleCache unit test is trivially fixable, but
the CompDirSymlink failure is a symptom of a deeper problem: llvm's stat
functionality is not a drop-in replacement for lldb's. The former is
based on stat(2) (which does symlink resolution), while the latter is
based on lstat(2) (which does not).

This also reverts subsequent build fixes (r297128, r297120, 297117) and
r297119 (Remove FileSpec dependency on FileSystem) which builds on top
of this.

llvm-svn: 297139
2017-03-07 13:19:15 +00:00
Sean Callanan 8f0a62a999 Fixed a missing brace.
llvm-svn: 297128
2017-03-07 08:31:41 +00:00
Zachary Turner 990e3cd8e2 Use LLVM for all stat-related functionality.
This deletes LLDB's FileType enumeration and replaces all
users, and all calls to functions that check whether a file
exists etc with corresponding calls to LLVM.

Differential Revision: https://reviews.llvm.org/D30624

llvm-svn: 297116
2017-03-07 03:43:17 +00:00
Zachary Turner 7f6a7a3752 Remove FileSpec::ReadFileContents.
This functionality is subsumed by DataBufferLLVM, which is
also more efficient since it will try to mmap.  However, we
don't yet support mmaping writable private sections, and in
some cases we were using ReadFileContents and then modifying
the buffer.  To address that I've added a flag to the
DataBufferLLVM methods that allow you to map privately, which
disables the mmaping path entirely.  Eventually we should teach
DataBufferLLVM to use mmap with writable private, but that is
orthogonal to this effort.

Differential Revision: https://reviews.llvm.org/D30622

llvm-svn: 297095
2017-03-06 23:42:14 +00:00
Zachary Turner 666cc0b291 Move DataBuffer / DataExtractor and friends from Core -> Utility.
llvm-svn: 296943
2017-03-04 01:30:05 +00:00
Zachary Turner 6f9e690199 Move Log from Core -> Utility.
All references to Host and Core have been removed, so this
class can now safely be lowered into Utility.

Differential Revision: https://reviews.llvm.org/D30559

llvm-svn: 296909
2017-03-03 20:56:28 +00:00
Zachary Turner 24ae6294a4 Finish breaking the dependency from Utility.
Differential Revision: https://reviews.llvm.org/D29964

llvm-svn: 295368
2017-02-16 19:38:21 +00:00
Pavel Labath 60199c1a4d Fix darwin build (llvm::once_flag fallout)
llvm-svn: 294221
2017-02-06 19:30:59 +00:00
Kamil Rytarowski c5f28e2a05 Switch std::call_once to llvm::call_once
Summary:
The std::call_once implementation in libstdc++ has problems on few systems: NetBSD, OpenBSD and Linux PPC. LLVM ships with a homegrown implementation llvm::call_once to help on these platforms.

This change is required in the NetBSD LLDB port. std::call_once with libstdc++ results with crashing the debugger.

Sponsored by <The NetBSD Foundation>

Reviewers: labath, joerg, emaste, mehdi_amini, clayborg

Reviewed By: labath, clayborg

Subscribers: #lldb

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D29288

llvm-svn: 294202
2017-02-06 17:55:02 +00:00
Pavel Labath 3b7e1981b2 Remove LIBLLDB_LOG_VERBOSE category
Summary:
Per discussion in D28616, having two ways two request logging (log
enable lldb XXX verbose && log enable -v lldb XXX) is confusing. This
removes the first option and standardizes all code to use the second
one.

I've added a LLDB_LOGV macro as a shorthand for if(log &&
log->GetVerbose()) and switched most of the affected log statements to
use that (I've only left a couple of cases that were doing complex
computations in an if(log) block).

Reviewers: jingham, zturner

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D29510

llvm-svn: 294113
2017-02-05 00:44:54 +00:00
Pavel Labath ec9bc8ccd4 Push down more common code into PlatformPOSIX
Summary:
- GetFileWithUUID: All platforms except PlatformDarwin had this.
However, I see no reason why this code would not apply there as well.

- GetProcessInfo, FindProcesses: The implementation was the same in all classes.

- GetFullNameForDylib: This code should apply to all non-darwin
platforms. I've kept the PlatformDarwin override as the situation is
different there.

Reviewers: clayborg, krytarowski, emaste

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D29496

llvm-svn: 294019
2017-02-03 17:42:04 +00:00
Zachary Turner bf9a77305f Move classes from Core -> Utility.
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
2017-02-02 21:39:50 +00:00