Commit Graph

253 Commits

Author SHA1 Message Date
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
Pavel Labath fc89bbcc71 Unify PlatformPOSIX::ResolveExecutable
Summary:
various platforms very using nearly identical code for this method. As far as I
can tell there was nothing platform-specific about the differences, but rather
it looked like it was caused by tiny tweaks being made to individual copies
without affecting the overall functionality. I have taken the superset of all
these tweaks and put it into one method in the base class (incidentaly, nobody
was using the base class implementation of the method, as all classes were
overriding it). From the darwin class I took the slightly improved error
reporting (checking whether the file is readable) and the
ResolveExecutableInBundle call (which has no effect elsewhere as the function
is already a no-op on non-darwin platforms). From the linux class I took the
set-the-triple-vendor-to-host-if-unspecified tweak (present in PlatformKalimba
as well).

PlatformWindows has an identical copy as well. We could resolve that by pushing
this code further down into Platform class, that that would require pushing the
m_remote_platform_sp member as well, which seems like a bad design choice.

Reviewers: clayborg, emaste, krytarowski

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D29406

llvm-svn: 293910
2017-02-02 17:50:03 +00:00
Chris Bieneman 81b8f12b42 [CMake] [3/4] Update a batch of plugins
This is extending the updates from r293696 to more LLDB plugins.

llvm-svn: 293700
2017-01-31 22:29:11 +00:00
Zachary Turner c156427ded Don't allow direct access to StreamString's internal buffer.
This is a large API change that removes the two functions from
StreamString that return a std::string& and a const std::string&,
and instead provide one function which returns a StringRef.

Direct access to the underlying buffer violates the concept of
a "stream" which is intended to provide forward only access,
and makes porting to llvm::raw_ostream more difficult in the
future.

Differential Revision: https://reviews.llvm.org/D26698

llvm-svn: 287152
2016-11-16 21:15:24 +00:00
Greg Clayton 7b26dbb125 Fix a deadlock issue that would happen when loading an AppleTV or watchOS binary.
This was a regression that was caused by svn revision 269877:

commit 1ded4a2a25d60dd2c81bd432bcf63b6ded58e5d6
Author: Saleem Abdulrasool <compnerd@compnerd.org>
Date:   Wed May 18 01:59:10 2016 +0000

    remove use of Mutex in favour of std::{,recursive_}mutex
    
    This is a pretty straightforward first pass over removing a number of uses of
    Mutex in favor of std::mutex or std::recursive_mutex. The problem is that there
    are interfaces which take Mutex::Locker & to lock internal locks. This patch
    cleans up most of the easy cases. The only non-trivial change is in
    CommandObjectTarget.cpp where a Mutex::Locker was split into two.
    
    git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@269877 91177308-0d34-0410-b5e6-96231b3b80d8

This change actually changed the Platform::m_mutex to be non-recursive which caused the regression.

<rdar://problem/29094384>

llvm-svn: 286908
2016-11-14 23:45:50 +00:00
Mehdi Amini c1edf566b9 Prevent at compile time converting from Error::success() to Expected<T>
This would trigger an assertion at runtime otherwise.

Differential Revision: https://reviews.llvm.org/D26482

llvm-svn: 286562
2016-11-11 04:29:25 +00:00
Mehdi Amini 41af43092c Make the Error class constructor protected
This is forcing to use Error::success(), which is in a wide majority
of cases a lot more readable.

Differential Revision: https://reviews.llvm.org/D26481

llvm-svn: 286561
2016-11-11 04:28:40 +00:00
Enrico Granata 3949cb61a5 Fix an issue where LLDB would hang trying to launch tvOS simulator binaries
llvm-svn: 286116
2016-11-07 16:25:01 +00:00
Malcolm Parsons 771ef6d4f1 Fix Clang-tidy readability-redundant-string-cstr warnings
Reviewers: zturner, labath

Subscribers: tberghammer, danalbert, lldb-commits
    
Differential Revision: https://reviews.llvm.org/D26233

llvm-svn: 285855
2016-11-02 20:34:10 +00:00
Jason Molenda 2630acc0c5 Finish adding the individual instruction tests to the x86 unwinder
unittests.  If I have time, I'd like to see if I can write some
tests of the eh_frame augmentation which is a wholly separate code
path (it seems like maybe it should be rolled into the main instruction
scanning codepath, to be honest, and operate on the generated
UnwindPlan instead of bothering with raw instructions at all).  

Outside the eh_frame augmentation, I'm comfortable that this unwind
generator is being tested well now.

llvm-svn: 283186
2016-10-04 05:10:06 +00:00
Zachary Turner 5c725f3a06 Convert 3 more functions to use a StringRef.
This converts Args::Unshift, Args::AddOrReplaceEnvironmentVariable,
and Args::ContainsEnvironmentVariable to use StringRefs.  The code
is also simplified somewhat as a result.

llvm-svn: 281942
2016-09-19 21:56:59 +00:00
Zachary Turner ecbb0bb169 Fix more functions in Args to use StringRef.
This patch also marks the const char* versions as =delete to prevent
their use.  This has the potential to cause build breakages on some
platforms which I can't compile.  I have tested on Windows, Linux,
and OSX.  Best practices for fixing broken callsites are outlined in
Args.h in a comment above the deleted function declarations.

Eventually we can remove these =delete declarations, but for now they
are important to make sure that all implicit conversions from
const char * are manually audited to make sure that they do not invoke a
conversion from nullptr.

llvm-svn: 281919
2016-09-19 17:54:06 +00:00
Zachary Turner 6fa7681bb6 Convert many functions to use StringRefs.
Where possible, remove the const char* version.  To keep the
risk and impact here minimal, I've only done the simplest
functions.

In the process, I found a few opportunities for adding some
unit tests, so I added those as well.

Tested on Windows, Linux, and OSX.

llvm-svn: 281799
2016-09-17 02:00:02 +00:00
Kate Stone b9c1b51e45 *** This commit represents a complete reformatting of the LLDB source code
*** to conform to clang-format’s LLVM style.  This kind of mass change has
*** two obvious implications:

Firstly, merging this particular commit into a downstream fork may be a huge
effort.  Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit.  The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):

    find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
    find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;

The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.

Secondly, “blame” style tools will generally point to this commit instead of
a meaningful prior commit.  There are alternatives available that will attempt
to look through this change and find the appropriate prior commit.  YMMV.

llvm-svn: 280751
2016-09-06 20:57:50 +00:00
Jason Molenda 541ec9bde8 Rewrite the GetFileInSDK methods in PlatformRemoteiOS,
PlatformRemoteAppleWatch, PlatformRemoteAppleTV and remove the 
GetFileInSDKRoot method from those classes.

The rewrite uses the more modern FileSpec etc API to simplify,
and handles the case where an SDK Root is given to lldb with
the "/Symbols" directory name already appended.  The new version
will try appending "/Symbols" and "/Symbols.Internal" to the 
sdk root directories, and will also try appending nothing to
the sdk root directory in case it's handed such an sdkroot.

<rdar://problem/28000054> 

llvm-svn: 279688
2016-08-24 23:46:48 +00:00
Enrico Granata 0a328c5f30 Adjust LLDB's iOS simulator interface for changes in CoreSimulator
rdar://27732333 and rdar://27732377

llvm-svn: 278166
2016-08-09 21:16:58 +00:00
Jason Molenda 243bd763ec Change the indexing done for kernel/kext directories to be recursive.
Also re-write how most of the directory indexing is done - as it has 
grown over the years, it has become a bit of a mess and was overdue
for a cleanup.

Most importantly, this allows you to specify a directory with the 
platform.plugin.darwin-kernel.kext-directories setting and now lldb
will search for kexts and kernels in those directories recursively.

<rdar://problem/20754467> 

llvm-svn: 277789
2016-08-05 00:44:34 +00:00
Jason Molenda 8129255e76 PlatformDarwinKernel maintains a list of kexts and kernels
that it finds on the local computer in "well known" locations
when we start up the darwin-kernel platform.  It did not 
distinguish between kexts/kernels with dSYMs from others -
when it needed a kernel/kext with a given UUID, it would grab
the first one it finds.

This change separates these into two vectors -- a collection
of kexts and kernels with dSYMs next t othem, and a collection
of kexts and kernels without dSYMs.  When we have a bundle ID
and uuid to search for, we first try the collections with
dSYMs, and if that fails, then we try the collections that
did not have dSYMs next to them.

Often times we'll have a situation where a kext will be 
installed in multiple locations on a system, but only one
of them will have a dSYM next to it, where the dev just copied
it to a local directory.  This fixes that problem, giving
precedence to those binaries with debug information.

llvm-svn: 277123
2016-07-29 06:24:03 +00:00
Todd Fiala 4acb65ecee fix command-line LLDB so NSLog messages show up
Changes to the underlying logging infrastructure in Fall 2016 Darwin
OSes were no longer showing up NSLog messages in command-line LLDB.
This change restores that functionality, and adds test cases to
verify the new behavior.

rdar://26732492

llvm-svn: 275472
2016-07-14 21:02:45 +00:00
Jason Molenda 111926de5e Change PlatformDarwinKernel::GetSharedModule to be a little more
explicit in how it adds the kernel binary, to guard against the
case where a kernel corefile might incorrectly include the kernel's
UUID in it (so calling ::GetSharedModule may end up returning the
global module cache's copy of the core file instead of adding the
kerenl binary).

<rdar://problem/26988816> 

llvm-svn: 273954
2016-06-27 22:48:05 +00:00
Jason Molenda 17b45390db Revert r273524, it may have been the cause of a linux testbot failure
for TestNamespaceLookup.py; didn't see anything obviously wrong so I'll
need to look at this more closely before re-committing.  (passed OK on
macOS ;)

llvm-svn: 273531
2016-06-23 04:24:16 +00:00
Jason Molenda cb6dae22e2 Do some minor renames of "Mac OS X" to "macOS".
There's uses of "macosx" that will be more tricky to
change, like in triples (e.g. "x86_64-apple-macosx10.11") - 
for now I'm just updating source comments and strings printed 
for humans.

llvm-svn: 273524
2016-06-23 01:18:16 +00:00
Jason Molenda 27be91ca16 Add support to PlatformRemoteiOS, PlatformRemoteAppleWatch, and
PlatformRemoteAppleTV to check the target.exec-search-paths 
directories for files after looking in the SDK.  An additional
wrinkle is that the remote file path may be something like
".../UIFoundation.framework/UIFoundation" and in 
target.exec-search-paths we will have "UIFoundation.framework".
Looking for just the filename of the path is not sufficient -
we need to also look for it by the parent directories because
this may be a darwin bundle/framework like the UIFoundation
example.

We really need to make a PlatformRemoteAppleDevice and have
PlatformRemoteiOS, PlatformRemoteAppleWatch, and PlatformRemoteAppleTV
inherit from it.  These three classes are 98% identical code.

<rdar://problem/25976619> 

llvm-svn: 272635
2016-06-14 03:49:13 +00:00
Saleem Abdulrasool 16ff860469 remove use of Mutex in favour of std::{,recursive_}mutex
This is a pretty straightforward first pass over removing a number of uses of
Mutex in favor of std::mutex or std::recursive_mutex. The problem is that there
are interfaces which take Mutex::Locker & to lock internal locks. This patch
cleans up most of the easy cases. The only non-trivial change is in
CommandObjectTarget.cpp where a Mutex::Locker was split into two.

llvm-svn: 269877
2016-05-18 01:59:10 +00:00
Jason Molenda 7d0027627b In GDBRemoteCommunicationClient::GetHostInfo, don't set the
os to "ios" or "macosx" if it is unspecified.  For environments
where there genuinely is no os, we don't want to errantly 
convert that to ios/macosx, e.g. bare board debugging.

Change PlatformRemoteiOS, PlatformRemoteAppleWatch, and
PlatformRemoteAppleTV to not create themselves if we have
an unspecified OS.  Same problem - these are not appropriate
platforms for bare board debugging environments.

Have Process::Attach's logging take place if either 
process or target logging is enabled.

<rdar://problem/25592378> 

llvm-svn: 265732
2016-04-07 22:00:55 +00:00
Jason Molenda aef8452729 Add the same host logging that I added to PlatformRemoteiOS a few
months back to PlatformRemoteAppleTV and PlatformRemoteAppleWatch
to help understand what's happening when lldb can't find binaries
that it should be finding.

llvm-svn: 264380
2016-03-25 02:17:27 +00:00
Jim Ingham 2411167fb5 Add an "offset" option to "break set -n" and "break set -f -l".
That way you can set offset breakpoints that will move as the function they are 
contained in moves (which address breakpoints can't do...)

I don't align the new address to instruction boundaries yet, so you have to get
this right yourself for now.

<rdar://problem/13365575>

llvm-svn: 263049
2016-03-09 18:59:13 +00:00
Aidan Dodds 933d8db922 Refactor GetSoftwareBreakpointTrapOpcode
This patch aims to reduce the code duplication among all of the platforms in GetSoftwareBreakpointTrapOpcode by pushing all common code into the Platform base class.

Differential Revision: http://reviews.llvm.org/D17395

llvm-svn: 261536
2016-02-22 17:29:56 +00:00
Jason Molenda 62e0681afb Add -Wimplicit-fallthrough command line option to clang in
the xcode project file to catch switch statements that have a
case that falls through unintentionally.

Define LLVM_FALLTHROUGH to indicate instances where a case has code
and intends to fall through.  This should be in llvm/Support/Compiler.h;
Peter Collingbourne originally checked in there (r237766), then
reverted (r237941) because he didn't have time to mark up all the
'case' statements that were intended to fall through.  I put together
a patch to get this back in llvm http://reviews.llvm.org/D17063 but
it hasn't been approved in the past week.  I added a new
lldb-private-defines.h to hold the definition for now.

Every place in lldb where there is a comment that the fall-through
is intentional, I added LLVM_FALLTHROUGH to silence the warning.
I haven't tried to identify whether the fallthrough is a bug or
not in the other places.

I haven't tried to add this to the cmake option build flags.
This warning will only work for clang.

This build cleanly (with some new warnings) on macosx with clang
under xcodebuild, but if this causes problems for people on other
configurations, I'll back it out.

llvm-svn: 260930
2016-02-16 04:14:33 +00:00