Commit Graph

690 Commits

Author SHA1 Message Date
Jonas Devlieghere 796ac80b86 Use std::make_shared in LLDB (NFC)
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
2019-02-11 23:13:08 +00:00
Adrian Prantl 238ce2128c Silence fallthrough warnings in debugserver.
llvm-svn: 353468
2019-02-07 21:22:38 +00:00
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
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
2019-01-19 08:50:56 +00:00
Alex Langford cb1c467edb [CMake] Prevent lldbDebugserverCommon from building if you disable debugserver builds
Summary:
The flags `LLDB_USE_SYSTEM_DEBUGSERVER` and `LLDB_NO_DEBUGSERVER` were
introduced to the debugserver build. If one of these two flags are set, then we
do not build and sign debugserver. However I noticed that we were still building
the lldbDebugserverCommon and lldbDebugserverCommon_NonUI libraries regardless
of whether or not these flags were set. I don't believe we should be building
these libraries unless we are building and signing debugserver.

Reviewers: sgraenitz, davide, JDevlieghere, beanz, vsk, aprantl, labath

Subscribers: mgorny, jfb, lldb-commits

Differential Revision: https://reviews.llvm.org/D56763

llvm-svn: 351496
2019-01-17 23:14:04 +00:00
Alex Langford 76cb3089de [debugserver][CMake] Remove commented out line
This has been commented out since rL300111
(commit d742d081f3a1e7412cc609765139ba32d597ac15). Looks like it was
committed as a commented out line, so I'm removing it.

llvm-svn: 351263
2019-01-15 22:27:59 +00:00
Stefan Granitz f126ce6881 [CMake] Revised LLDB.framework builds
Summary:
Add features to LLDB CMake builds that have so far only been available in Xcode. Clean up a few inconveniences and prepare further improvements.

Options:
* `LLDB_FRAMEWORK_BUILD_DIR` determines target directory (in build-tree)
* `LLDB_FRAMEWORK_INSTALL_DIR` **only** determines target directory in install-tree
* `LLVM_EXTERNALIZE_DEBUGINFO` allows externalized debug info (dSYM on Darwin, emitted to `bin`)
* `LLDB_FRAMEWORK_TOOLS` determines which executables will be copied to the framework's Resources (dropped symlinking, removed INCLUDE_IN_SUITE, removed dummy targets)

Other changes:
* clean up `add_lldb_executable()`
* include `LLDBFramework.cmake` from `source/API/CMakeLists.txt`
* use `*.plist.in` files, which are typical for CMake and independent from Xcode
* add clang headers to the framework bundle

Reviewers: xiaobai, JDevlieghere, aprantl, davide, beanz, stella.stamenova, clayborg, labath

Reviewed By: aprantl

Subscribers: friss, mgorny, lldb-commits, #lldb

Differential Revision: https://reviews.llvm.org/D55328

llvm-svn: 350391
2019-01-04 12:46:50 +00:00
Stefan Granitz d0dc161f62 [CMake] Move debugserver options to separate debugserverConfig.cmake
Summary:
One place for debugserver options, analog to LLDBConfig for LLDB options (see D55317). It was discussed in earlier reviews already, e.g. D55013.

Reviewers: JDevlieghere, aprantl, xiaobai

Reviewed By: aprantl, xiaobai

Subscribers: mgorny, lldb-commits, #lldb

Differential Revision: https://reviews.llvm.org/D55320

llvm-svn: 350390
2019-01-04 12:46:38 +00:00
Stefan Granitz 90aeb4c8d9 [CMake] Streamline code signing for debugserver #2
Summary:
Major fixes after D54476 (use Diff1 as base for comparison to see only recent changes):
* In standalone builds target directory for debugserver must be LLDB's bin, not LLVM's bin
* Default identity for code signing must not force-override LLVM_CODESIGNING_IDENTITY globally

We have a lot of cases, make them explicit:

* ID used for code signing (debugserver and in tests):
** `LLDB_CODESIGN_IDENTITY` if set explicitly, or otherwise
** `LLVM_CODESIGNING_IDENTITY` if set explicitly, or otherwise
** `lldb_codesign` as the default

* On Darwin we have a debugserver target that:

* On other systems, the debugserver target is not defined, which is equivalent to **[3A]**

Common configurations on Darwin:
* **[1A]** `cmake -GNinja ../llvm` builds debugserver from source and signs with `lldb_codesign`, no code signing for other binaries (prints status: //lldb debugserver: /path/to/bin/debugserver//)
* **[1A]** `cmake -GNinja -DLLVM_CODESIGNING_IDENTITY=- -DLLDB_CODESIGN_IDENTITY=lldb_codesign ../llvm` builds debugserver from source and signs with `lldb_codesign`, ad-hoc code signing for other binaries (prints status: //lldb debugserver: /path/to/bin/debugserver//)
* **[2A]** `cmake -GNinja -DLLVM_CODESIGNING_IDENTITY=- -DLLDB_USE_SYSTEM_DEBUGSERVER=ON ../llvm` copies debugserver from system, ad-hoc code signing for other binaries (prints status: //Copy system debugserver from: /path/to/system/debugserver//)
* **[2B]** `cmake -GNinja -DLLVM_CODESIGNING_IDENTITY=- ../llvm` same, but prints additional warning: //Cannot code sign debugserver with identity '-'. Will fall back to system's debugserver. Pass -DLLDB_CODESIGN_IDENTITY=lldb_codesign to override the LLVM value for debugserver.//
* **[3A]** `cmake -GNinja -DLLVM_CODESIGNING_IDENTITY=- -DLLDB_NO_DEBUGSERVER=ON ../llvm` debugserver not available (prints status: //lldb debugserver will not be available)//

Reviewers: JDevlieghere, beanz, davide, vsk, aprantl, labath

Reviewed By: JDevlieghere, labath

Subscribers: mgorny, #lldb, lldb-commits

Differential Revision: https://reviews.llvm.org/D55013

llvm-svn: 350388
2019-01-04 12:46:30 +00:00
Jonas Devlieghere 8d20cfdfc6 [NFC] Replace `compare` with (in)equality operator where applicable.
Using compare is verbose, bug prone and potentially inefficient (because
of early termination). Replace relevant call sites with the (in)equality
operator.

llvm-svn: 349972
2018-12-21 22:46:10 +00:00
Jason Molenda 681f6c2f55 Un-conditionalize use of libcompression. debugserver only builds
on Darwin systems and libcompression has been in the OS for over
three years. 

Remove use of / linking to zlib.  We'll always have libcompression
available now.

Create a scratch buffer via compression_encode_scratch_buffer_size()
and use it in calls to compression_encode_buffer() to avoid 
compression_encode_buffer having to malloc & free a scratch buffer
on each call.  

Tested by forcing compression to be enabled on macos native (normally
only enabled on iOS et al devices), running the testsuite.

<rdar://problem/41601084>

llvm-svn: 349553
2018-12-18 22:21:48 +00:00
Jonas Devlieghere a6682a413d Simplify Boolean expressions
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
2018-12-15 00:15:33 +00:00
Stefan Granitz 10c1116c09 [CMake] Fix standalone build for debugserver on macOS
Summary:
Quick-fix to avoid CMake config issue:
```
CMake Error at /path/to/lldb/cmake/modules/AddLLDB.cmake:116 (add_dependencies):
  Cannot add target-level dependencies to non-existent target "lldb-suite".
```

Reviewers: xiaobai, beanz

Subscribers: mgorny, lldb-commits

Differential Revision: https://reviews.llvm.org/D55032

llvm-svn: 347869
2018-11-29 14:51:49 +00:00
Davide Italiano 3bd249018c Revert "[CMake] Streamline code signing for debugserver and pass entitlements to extended llvm_codesign"
It breaks the lldb cmake bots.

llvm-svn: 347619
2018-11-27 00:25:49 +00:00
Stefan Granitz 6e6b4ac18e [CMake] Streamline code signing for debugserver and pass entitlements to extended llvm_codesign
Summary:
Use llvm_codesign to sign debugserver with entitlements.
Set global LLVM_CODESIGNING_IDENTITY from LLDB_CODESIGN_IDENTITY (if given).
Pass through ENTITLEMENTS from add_lldb_executable to add_llvm_executable.
Handle reconfigurations correctly.

We have a lot of cases, make them explicit:

(1) build and sign debugserver, if all conditions apply:
* LLDB_NO_DEBUGSERVER=OFF (default)
* On Darwin: LLDB_USE_SYSTEM_DEBUGSERVER=OFF (default)
* On Darwin: LLVM_CODESIGNING_IDENTITY == lldb_codesign

(2) use system debugserver, if on Darwin and any of:
* LLDB_USE_SYSTEM_DEBUGSERVER=ON and found on system (explicit case)
* LLVM_CODESIGNING_IDENTITY != lldb_codesign and found on system (fallback case)

(3) debugserver will not be available, in case of:
* LLDB_NO_DEBUGSERVER=ON
* On Darwin: LLVM_CODESIGNING_IDENTITY != lldb_codesign and not found on system

(4) error state, in case of:
* LLDB_USE_SYSTEM_DEBUGSERVER=ON and not found on system
* LLDB_USE_SYSTEM_DEBUGSERVER=ON and LLDB_NO_DEBUGSERVER=ON

Reviewers: xiaobai, beanz, vsk, JDevlieghere

Subscribers: mgorny, lldb-commits, llvm-commits

Differential Revision: https://reviews.llvm.org/D54476

llvm-svn: 347305
2018-11-20 14:10:33 +00:00
Jonas Devlieghere ceff6644bb Remove header grouping comments.
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
2018-11-11 23:17:06 +00:00
Jonas Devlieghere 672d2c1255 Remove comments after header includes.
This patch removes the comments following the header includes. They were
added after running IWYU over the LLDB codebase. However they add little
value, are often outdates and burdensome to maintain.

Differential revision: https://reviews.llvm.org/D54385

llvm-svn: 346625
2018-11-11 23:16:43 +00:00
Jason Molenda a9796ede39 Enable listening for EXC_RESOURCE events, and format mach
event as a thread stop reason if we receive one, using 
some macros to decode the payload.  

Patch originally written by Fred Riss, with a few small changes
by myself.

Writing a test for this is a little tricky because the 
mach exception data interpretation relies on header macros
or function calls - it may change over time and writing
a gdb_remote_client test for this would break as older 
encoding interpretation is changed.  I'll tak with Fred
about this more, but neither of us has been thrilled with
the kind of tests we could write for it.

<rdar://problem/13097323>, <rdar://problem/40144456> 

llvm-svn: 346571
2018-11-10 00:14:14 +00:00
Jason Molenda a1050973ed Remove llvm include from debugserver, change
LLVM_FALLTHROUGH's to [[clang::fallthrough]] -
debugserver is only ever compiled on darwin
systems with clang.

llvm-svn: 346553
2018-11-09 20:31:41 +00:00
Adrian Prantl 567906d8c7 Add missing include
llvm-svn: 346527
2018-11-09 17:58:05 +00:00
Adrian Prantl 69cf5571e3 Add missing include
llvm-svn: 346525
2018-11-09 17:44:20 +00:00
Adrian Prantl 96d37cf537 Annotate switch with LLVM_FALLTHROUGH
llvm-svn: 346519
2018-11-09 17:11:17 +00:00
Nathan Lanza 5652cd3fe9 Remove working directory for debugserver code signing target
Summary:
LLVM puts output binaries in
`${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin`. This chunk of
code left out the `${CMAKE_CFG_INTDIR}`. Ultimately, the code signing target
does not need a working directory anyways, so it's safe to just remove it.

Reviewers: sas, xiaobai, beanz

Reviewed By: beanz

Subscribers: mgorny

Differential Revision: https://reviews.llvm.org/D53959

llvm-svn: 346281
2018-11-06 23:54:52 +00:00
Jason Molenda b0d33e9b3c Re-instate a bit of code that was commented out in r188246 which
reads an ObjectFileMachO's string table in one chunk.  Originally
this was commented out because binaries in the system's shared cache
all share a mega-string table and so reading the entire mega-strtab
for each binary was a performance problem.

In the reinstated code, I add a check that the binary we're reading
from memory is not in the shared cache (there isn't a constant in
<mach-o/loader.h> for this bit yet; we hardcode the value in one
other place in ObjectFileMachO alread).  For binaries that we're
reading out of memory that are NOT in the shared cache, reading 
the string table in one chunk is a big performance improvement.

Also have debugserver send up the flags value for binaries in its
response to the jGetLoadedDynamicLibrariesInfos request.

NFC.

<rdar://problem/33604496> 

llvm-svn: 341511
2018-09-06 00:55:27 +00:00
Jason Molenda f04833f9ee Remove unnecessary entitlement in debugserver for iOS.
<rdar://problem/43631901> 

llvm-svn: 340877
2018-08-28 22:28:34 +00:00
Alex Langford 27510c18ad Introduce lldb-framework CMake target and centralize its logic
Summary:
In this patch I aim to do the following:

1) Create an lldb-framework target that acts as the target that handles generating LLDB.framework. Previously, liblldb acted as the target for generating the framework in addition to generating the actual lldb library. This made the target feel overloaded.
2) Centralize framework generation as much as it makes sense to do so.
3) Create a target lldb-suite, which depends on every tool and library that makes liblldb fully functional. One result of having this target is it makes tracking dependencies much clearer.

Differential Revision: https://reviews.llvm.org/D48060

llvm-svn: 334968
2018-06-18 18:27:16 +00:00
Jason Molenda 94405ddb95 Sort the files in the PBXBuildFile and PBXFileReference sections
of debugserver's xcode project file to reduce automerger issues
with the github swift repository of lldb where the order of these
entries has drifted significantly over the years.

llvm-svn: 334873
2018-06-15 23:32:37 +00:00
Frederic Riss 9745a0adb2 Add support for PLATFORM_*SIMULATOR
The toolchain in Xcode 10 uses a new LC_BUILD_VERSION entry to identify
simulator binaries. Add support for reading those to debugserver.

The exisitng test testing that code is currently failling when run
with Xcode 10, no need for a new test.

llvm-svn: 334784
2018-06-15 02:50:45 +00:00
Frederic Riss 2153c42358 Add an entitlement to debugserver
On macOS 10.14, debugserver needs to have an entitlement do be
allowed to debug processes. Adding this to both the Xcode and
cmake build system. This shouldn't have any impact on previous
OSs.

llvm-svn: 334772
2018-06-14 21:17:59 +00:00
Alex Langford 9391061fd7 Delete some dead code
llvm-svn: 334320
2018-06-08 21:13:26 +00:00
Bruce Mitchener 4ebdee0a59 Typo fixes.
Reviewers: javed.absar

Subscribers: ki.stfu, JDevlieghere, lldb-commits

Differential Revision: https://reviews.llvm.org/D47421

llvm-svn: 333399
2018-05-29 09:10:46 +00:00
Jonas Devlieghere 52721286b2 [CMake] Unify and relayer testing
This patch restructures part of LLDB's testing configuration:

1. I moved the test dependencies up the chain so every dotest dependency
   becomes a lit dependency as well. It wouldn't make sense for dotest to
   have other dependencies when it's being run by lit. Lit on the other
   hand can still specify extra dependencies.

2. I replaced as much generator expressions with variables as possible.
   This is consistent with the rest of LLVM and doesn't break generators
   that support multiple targets (MSVC, Xcode). This wasn't a problem
   before, but now we need to expand the dotest arguments in the lit
   configuration and there's only one test suite even with multiple
   targets.

3. I moved lldb-dotest into it's own directory under utils since there's
   no need anymore for it to located under `test/`.

Differential revision: https://reviews.llvm.org/D46334

llvm-svn: 331463
2018-05-03 16:54:10 +00:00
Adrian Prantl 6e9f77126b Silence compiler warning.
llvm-svn: 331375
2018-05-02 17:11:43 +00:00
Adrian Prantl d8f460e864 Enable AUTOBRIEF in doxygen configuration.
This brings the LLDB configuration closer to LLVM's and removes visual
clutter in the source code by removing the @brief commands from
comments.

This patch also reflows the paragraphs in all doxygen comments.

See also https://reviews.llvm.org/D46290.

Differential Revision: https://reviews.llvm.org/D46321

llvm-svn: 331373
2018-05-02 16:55:16 +00:00
Frederic Riss 60b94c296e [debugserver] Fix the G packet handling.
Of course r331004 needed a counterpart on the write side.

llvm-svn: 331073
2018-04-27 19:59:42 +00:00
Frederic Riss 34ec0bfb5e [debugserver] Fix handling of the 'g' packet
LLDB doesn't use this packet so we never hit this, but it looks like
some other projects talk to debugserver and are hitting an assert
(https://github.com/derekparker/delve/issues/1015).

We had an off by 1 in the accounting of the FPU structure sizes.
I added a test that basically just check that 'g' doesn't return
an error (currently it assert in debug builds). I didn't make
it an lldb-server test because it looks like lldb-server doesn't
implement the g packet.

llvm-svn: 331004
2018-04-27 00:09:04 +00:00
Frederic Riss 05e8bc85e6 [debugserver] Return 'ios' instead of 'iphoneos' for the ostype.
When I merged the 2 codepaths that return an OS type, I hade
checked that the places accepting 'iphoneos' would also accept
'ios', but then I got it backwards and return 'iphoneos'.

We use this value to build triples, and there 'iphoneos' is
invalid.

This also makes the test slightly simpler.

llvm-svn: 330877
2018-04-25 22:12:12 +00:00
Davide Italiano e185dcf13d Revert "[debugserver] Remove dead function call. NFCI."
This reverts commit r330066 as it was wrong and the call was
not dead. Thanks to Fred for pointing this out.

llvm-svn: 330071
2018-04-13 21:26:32 +00:00
Davide Italiano 0bd55b187e [debugserver] Remove dead function call. NFCI.
llvm-svn: 330066
2018-04-13 20:47:25 +00:00
Frederic Riss cd90f878d4 [debugserver] Fix LC_BUILD_VERSION load command handling.
Summary:
In one of the 2 places the LC_BUILD_VERSION load command is handled, there
is a bug preventing us from actually handling them (the address where to
read the load command was not updated). This patch factors reading the
deployment target load commands into a helper and adds testing for the 2
code paths calling the helper.

The testing is a little bit complicated because the only times those load
commands matter is when debugging a simulator process. I added a new
decorator to check that a specific SDK is available. The actual testing was
fairly easy once I knew how to run a simulated process.

Reviewers: jasonmolenda, labath

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D45298

llvm-svn: 329374
2018-04-06 04:28:12 +00:00
Frederic Riss fa37026db3 Prevent double release of mach ports
Summary:
When a MIG routine returns KERN_FAILURE, the demux function will release any OOL resources like ports. In this case, task_port and thread_port will be released twice, potentially resulting in use after free of the ports.

I don't think we can test this in any useful way
rdar://problem/37331387

Reviewers: jasonmolenda

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D45011

llvm-svn: 328761
2018-03-29 03:49:41 +00:00
Jason Molenda 49b30d5ad5 Add the same new entitlement from r326399 to
the macos entitlement list.
<rdar://problem/38887712> 

llvm-svn: 328591
2018-03-26 23:13:17 +00:00
Jason Molenda f92817ab23 Rename remotectl_com.apple.internal.xpc.remote.debugserver.plist
to com.apple.internal.xpc.remote.debugserver.plist, not sure where
that remotectl_ prefix came from.

<rdar://problem/36751222> 

llvm-svn: 327922
2018-03-19 23:07:31 +00:00
Jason Molenda 695b211ce6 I didn't see that SocketAddress.cpp was already being pulled
in to debugserver; my re-addition resulted in duplicated
symbols.  Remove my added SocketAddress.cpp, and change the
original one to also be included for the debugserver-mini target.

llvm-svn: 327918
2018-03-19 22:55:19 +00:00
Jason Molenda cd063214b0 Add the ios-mini target to the top-level xcodeproj, which builds
the debugserver-mini target in debugserver.  Add a new plist
which needs to be installed for debugserver-mini.
<rdar://problem/36751222> 

llvm-svn: 327915
2018-03-19 22:04:45 +00:00
Vedant Kumar 51bc20527b [cmake] Copy system debugserver from the right place when only CommandLineTools
are installed

Instead of building debugserver when building lldb, I'd rather pass
LLDB_CODESIGN_IDENTITY="" to cmake and use the one already on my system.
However, on one of my machines I only have the CommandLineTools installed, and
so the hardcoded path to the system debugserver does not work for me.
Additionally, we should verify the LLDB framework exists on the machine before
trying to set the path to debugserver. This allows us to warn the user at
configure time that a system debugserver can't be found if they choose not to
build it themselves.

Patch by Alex Langford!

Differential Revision: https://reviews.llvm.org/D44507

llvm-svn: 327691
2018-03-16 03:31:16 +00:00
Jason Molenda 250524f7ed I added CFLAGS etc to one part of the project file I should not have.
llvm-svn: 327097
2018-03-09 01:43:18 +00:00
Jason Molenda 4b7ea1f33c More cleanups of debugserver project file and the libpmenergy/libpmsample
stuff.  Activate it when an internal SDK is selected.  Update the name of
the LDFLAGS to match the rest of the settings.  Update the default arch for 
ios builds.

llvm-svn: 327095
2018-03-09 01:37:37 +00:00
Jason Molenda fc7321197e Remove unneeded per-arch sdk specifications from debugserver xcode project file.
llvm-svn: 327088
2018-03-09 00:32:56 +00:00
Jason Molenda c13a14ac26 Remove the explicit dependency on libpmenergy and libpmsample.
llvm-svn: 327087
2018-03-09 00:28:51 +00:00
Jason Molenda a608510b13 Fixed two more sdk inconsistencies with the pmenergy stuff.
llvm-svn: 327085
2018-03-09 00:23:29 +00:00