Commit Graph

512 Commits

Author SHA1 Message Date
Chaoren Lin 44145d79cc Working directory FileSpec should use remote path syntax to display correctly.
Summary: Depends on D9728.

Reviewers: ovyalov, zturner, clayborg

Reviewed By: clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D9806

llvm-svn: 238605
2015-05-29 19:52:37 +00:00
Chaoren Lin d3173f34e8 Refactor many file functions to use FileSpec over strings.
Summary:
This should solve the issue of sending denormalized paths over gdb-remote
if we stick to GetPath(false) in GDBRemoteCommunicationClient, and let the
server handle any denormalization.

Reviewers: ovyalov, zturner, vharron, clayborg

Reviewed By: clayborg

Subscribers: tberghammer, emaste, lldb-commits

Differential Revision: http://reviews.llvm.org/D9728

llvm-svn: 238604
2015-05-29 19:52:29 +00:00
Chaoren Lin 1c614fedf9 Make FileSpec::Dump use FileSpec::GetPath(), not the other way around.
Summary:
Fix FileSpec::Dump() to output denormalized path.

See D9942 for previous discussions.

Reviewers: zturner

Reviewed By: zturner

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D10077

llvm-svn: 238440
2015-05-28 17:02:45 +00:00
Pavel Labath 4446487d71 Improve LLDB prompt handling
Summary:
There is an issue in lldb where the command prompt can appear at the wrong time. The partial fix
we have in for this is not working all the time and is introducing unnecessary delays. This
change does:
- Change Process:SyncIOHandler to use integer start id's for synchronization to avoid it being
  confused by quick start-stop cycles. I picked this up from a suggested patch by Greg to
  lldb-dev.
- coordinates printing of asynchronous text with the iohandlers. This is also based on a
  (different) Greg's patch, but I have added stronger synchronization to it to avoid races.

Together, these changes solve the prompt problem for me on linux (both with and without libedit).
I think they should behave similarly on Mac and FreeBSD and I think they will not make matters
worse for windows.

Test Plan: Prompt comes out alright. All tests still pass on linux.

Reviewers: clayborg, emaste, zturner

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D9823

llvm-svn: 238313
2015-05-27 12:40:32 +00:00
Greg Clayton 2a2949cf47 Allow clients to get parsing errors and also fix the ApplePropertyList so it parses the structured data correctly.
llvm-svn: 238280
2015-05-27 03:24:17 +00:00
Greg Clayton ee8f994077 Modify the ApplePropertyList to be able to create StructuredData objects from the plist XML.
llvm-svn: 238260
2015-05-26 22:49:19 +00:00
Greg Clayton d04f0edad9 Added XML to the host layer.
We know have on API we should use for all XML within LLDB in XML.h. This API will be easy back the XML parsing by different libraries in case libxml2 doesn't work on all platforms. It also allows the only place for #ifdef ...XML... to be in XML.h and XML.cpp. The API is designed so it will still compile with or without XML support and there is a static function "bool XMLDocument::XMLEnabled()" that can be called to see if XML is currently supported. All APIs will return errors, false, or nothing when XML isn't enabled.

Converted all locations that used XML over to using the host XML implementation.

Added target.xml support to debugserver. Extended the XML register format to work for LLDB by including extra attributes and elements where needed. This allows the target.xml to replace the qRegisterInfo packets and allows us to fetch all register info in a single packet.

<rdar://problem/21090173>

llvm-svn: 238224
2015-05-26 18:00:51 +00:00
Greg Clayton 5cf342d7aa Fix compiler warnings regarding size_t not always being 64 bit in the printf.
llvm-svn: 238127
2015-05-25 02:55:21 +00:00
Zachary Turner 279a2b7575 Implement PlatformWindows::GetEnvironment.
This fixes a couple of tests that rely on being able to get the
host's environment or spawn an inferior with specific arguments.

llvm-svn: 238042
2015-05-22 19:34:17 +00:00
Robert Flack ab78164ad8 Only check for matching arch and UUID when looking for dsym in vincinity of executable.
ModuleSpecs::FindMatchingModuleSpec looks for matching filenames but when
looking for the dSYM we should only be looking for a matching architecture and
and UUID. Jason pointed out this mistake in http://reviews.llvm.org/D9174 when
this function was incorrectly converted to not be Mac specific.

Test Plan:
Running LLDB on test/lang/c/shared_lib_stripped_symbols/a.out in a debugger I've
verified LocateDSYMInVincinityOfExecutable correctly locates the matching dSYM.

Differential Revision: http://reviews.llvm.org/D9896

llvm-svn: 237907
2015-05-21 15:44:24 +00:00
Chaoren Lin 70e0cbb3ed Remove trailing slash from dumping directory FileSpec.
Reviewers: domipheus, ovyalov

Reviewed By: ovyalov

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D9862

llvm-svn: 237741
2015-05-19 23:11:58 +00:00
Omair Javaid ea8c25a802 This patch adds support for setting/clearing hardware watchpoints and breakpoints on AArch64 (Arm v8) 64-bit hardware.
http://reviews.llvm.org/D9706

llvm-svn: 237419
2015-05-15 06:29:58 +00:00
Vince Harron d7e6a4f2f0 Fixed a ton of gcc compile warnings
Removed some unused variables, added some consts, changed some casts
to const_cast. I don't think any of these changes are very
controversial.

Differential Revision: http://reviews.llvm.org/D9674

llvm-svn: 237218
2015-05-13 00:25:54 +00:00
Chaoren Lin f34f410e0a Set path syntax for remote executable FileSpec.
Reviewers: ovyalov, zturner

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D9579

llvm-svn: 236925
2015-05-09 01:21:32 +00:00
Tamas Berghammer f3a243297b Use /data/local/tmp as temp directory on android
If no temp directory specified by the user on android then fall back
to /data/local/tmp what is always present on the device. It removes
the dependency of specifying TMPDIR for executing platform commands
on android.

Differential revision: http://reviews.llvm.org/D9569

llvm-svn: 236843
2015-05-08 12:46:26 +00:00
Oleksiy Vyalov 919ef9dc37 Use file locks to synchronize access to ModuleCache.
http://reviews.llvm.org/D9056

llvm-svn: 236736
2015-05-07 15:28:49 +00:00
Greg Clayton 9c284c4d7a Make sure that the following paths say they are equal:
/private/tmp/main.cpp
/private/tmp/..//tmp/main.cpp

We saw paths like this in makefile generate binaries when someone left an extra '/' on the end of a makefile variable.

<rdar://problem/18945972>

llvm-svn: 236541
2015-05-05 20:26:58 +00:00
Chaoren Lin b2b3ff1860 Fixed some compiler warnings because of bit-width mismatches.
llvm-svn: 236323
2015-05-01 16:58:18 +00:00
Sean Callanan 09b41c0785 Fixed some compiler warnings because of bit-width
mismatches.

llvm-svn: 236295
2015-05-01 00:44:36 +00:00
Chaoren Lin 3eb4b4589e Remove trap code from disassembly.
Summary:
NativeProcessProtocol uses ReadMemory internally for setting/checking
breakpoints but also for generic memory reads (Handle_m), this change adds a
ReadMemoryWithoutTrap for that purpose. Also fixes a bunch of misuses of addr_t
as size/length.

Test Plan: `disassemble` no longer shows the trap code.

Reviewers: jingham, vharron, clayborg

Reviewed By: clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D9330

llvm-svn: 236132
2015-04-29 17:24:48 +00:00
Robert Flack 31870e15fa Look for both .debug and dsym debugging symbol information for stripped executable.
Currently Symbols::LocateExecutableSymbolFile on MacOSX only looks for external
dsym debugging information, however if running on a stripped dwarf executable it
should also check for a .debug file as well.

Test Plan:
./dotest.py $DOTEST_OPTS -t -p TestSharedLibStrippedSymbols.py
This test now passes when running a remote Mac -> Linux test, and still passes
running locally on Mac or locally on Linux.

Differential Revision: http://reviews.llvm.org/D9174

llvm-svn: 235737
2015-04-24 18:09:54 +00:00
Enrico Granata 66eda7323c Fix a bug where argdumper would not launch inferiors correctly in the presence of arguments of the form word1\ word2 (vs. the quoted form "word1 word2")
Fixes rdar://20493444

llvm-svn: 235157
2015-04-17 01:50:11 +00:00
Oleksiy Vyalov 4e1588c270 Wrap socket error handling with SetLastError and IsInterrupted internal functions which can properly treat Windows and POSIX errors.
http://reviews.llvm.org/D8939

llvm-svn: 234559
2015-04-10 02:31:37 +00:00
Zachary Turner 4e8ddf5333 [Python] Fix issue configuring sys.path during startup.
Previously, users on Windows had to manually specify PYTHONPATH
to point to the site-packages directory before running LLDB.
The reason for this was because sys.path was being initialized
with a path containing unescaped backslashes, causing escape
sequences to end up in the paths.

llvm-svn: 234516
2015-04-09 18:08:50 +00:00
Greg Clayton 7965e5457a Missed moving a variable during my previous revision 234455.
llvm-svn: 234456
2015-04-09 00:12:33 +00:00
Greg Clayton 29aac9a56c Darwin read()/pread()/fread() and write()/pwrite()/fwrite() calls can only write INT_MAX bytes at a time.
Modify all read/write calls to allow any system to define MAX_READ_SIZE or MAX_WRITE_SIZE so large reads and writes can be divided up correctly.

<rdar://problem/20471411>

llvm-svn: 234455
2015-04-09 00:06:44 +00:00
Zachary Turner 48b475cbaa Fix warnings generated by clang-cl.
There were a couple of real bugs here regarding error checking and
signed/unsigned comparisons, but mostly these were just noise.

There was one class of bugs fixed here which is particularly
annoying, dealing with MSVC's non-standard behavior regarding
the underlying type of enums.  See the comment in
lldb-enumerations.h for details.  In short, from now on please use
FLAGS_ENUM and FLAGS_ANONYMOUS_ENUM when defining enums which
contain values larger than can fit into a signed integer.

llvm-svn: 233943
2015-04-02 20:57:38 +00:00
Vince Harron 33aea9001a Increate backlog of lldb-platform's listener socket
lldb-platform's listener socket only had a backlog of one connection.
That means that if more than one client connected simultaneously, the
connection would be refused. The test suite can be run remotely with
dozens of threads connecting simultaneously. Raised this limit to 100
to effectively eliminate lost connections.

Test Plan:
run tests against a remote target

Differential Revision: http://reviews.llvm.org/D8696

llvm-svn: 233652
2015-03-31 00:27:10 +00:00
Chaoren Lin f9e915ae10 ComputeSupportExeDirectory for Linux
Summary:
Fixes http://reviews.llvm.org/D8511

The original method of using dladdr() could return the incorrect relative
path if not dynamically linked against liblldb and the working directory
has changed. This is not a problem when built with python, since
ScriptInterpreterPython::InitializePrivate calls
HostInfo::GetLLDBPath(ePathTypeLLDBShlibDir, ...) and caches the
correct path before any changes to the working directory.

The /proc/self/exe approach fails if run using Python, but works for all other
cases (including for android, which doesn't have dladdr()).

So if we combine the two, we should reasonably cover all corner cases.

Reviewers: vharron, ovyalov, clayborg

Reviewed By: ovyalov, clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D8570

llvm-svn: 233129
2015-03-24 23:07:02 +00:00
Chaoren Lin c16f5dca27 Report watchpoint hits during single stepping.
Summary:
Reorganized NativeProcessLinux::MonitorSIGTRAP to check for watchpoint hits on
TRAP_TRACE.

Added test for stepping over watchpoints.

https://llvm.org/bugs/show_bug.cgi?id=22814

Reviewers: ovyalov, tberghammer, vharron, clayborg

Subscribers: jingham, labath, lldb-commits

Differential Revision: http://reviews.llvm.org/D8404

llvm-svn: 232784
2015-03-19 23:28:10 +00:00
Zachary Turner 3a00691f3d Move LLDB initialization/shutdown to Initialization.
This creates a new top-level folder called Initialization which
is intended to hold code specific to LLDB system initialization.
Currently this holds the Initialize() and Terminate() functions,
as well as the fatal error handler.

This provides a means to break the massive dependency cycle which
is caused by the fact that Debugger depends on Initialize and
Terminate which then depends on the entire LLDB project.  With
this structure, it will be possible for applications to invoke
lldb_private::Initialize() directly, and have that invoke
Debugger::Initialize.

llvm-svn: 232768
2015-03-19 22:00:21 +00:00
Zachary Turner 3294de270e Move lldb-log.cpp to core/Logging.cpp
So that we don't have to update every single #include in the entire
codebase to #include this new header (which used to get included by
lldb-private-log.h, we automatically #include "Logging.h" from
within "Log.h".

llvm-svn: 232653
2015-03-18 18:20:42 +00:00
Tamas Berghammer eadb2a9ed0 Report stopped by trace if none of the watchpoint was hit
Some linux kernel reports a watchpoint hit after single stepping even
when no watchpoint was hit. This CL looks for a watchpoint which was hit
and reports a stop by trace if it haven't found any.

Differential revision: http://reviews.llvm.org/D8081

llvm-svn: 232482
2015-03-17 14:40:57 +00:00
Mohit K. Bhakkad 3df471c32d [MIPS] - Register Context for MIPS64
Patch by Jaydeep Patil

Summery:
1. Add MIPS variants by parsing e_flags of the ELF
2. Create RegisterInfoInterface and RegisterContext for MIPS64 and MIPS64EL

Reviewers: clayborg

Subscribers: tberghammer, bhushan, mohit.bhakkad, sagar

Differential Revision: http://reviews.llvm.org/D8166

llvm-svn: 232467
2015-03-17 11:43:56 +00:00
Tamas Berghammer 0cbf0b13e7 Add code to exit the NativeProcessLinux Monitor thread on android
This CL change the logic used to terminate the monitor thread of
NativeProcessLinux to use a signal instead of pthread_cancel as
pthread_cancel is not supported on android.

Differential revision: http://reviews.llvm.org/D8205

llvm-svn: 232155
2015-03-13 11:16:03 +00:00
Oleksiy Vyalov 63acdfdeb2 Add Utility/ModuleCache class and integrate it with PlatformGDBRemoteServer - in order to allow modules caching from remote targets.
http://reviews.llvm.org/D8037

llvm-svn: 231734
2015-03-10 01:15:28 +00:00
Zachary Turner a893d3014b Remove Host::Backtrace in favor of llvm::sys::PrintStackTrace()
This removes Host::Backtrace from the codebase, and changes all
call sites to use llvm::sys::PrintStackTrace().  This makes the
functionality available for all platforms, and even for platforms
which currently had a supported implementation of Host::Backtrace,
this patch should enable richer information in stack traces, such
as file and line number information, as well as giving it the
ability to unwind through inlined functions.

llvm-svn: 231511
2015-03-06 20:45:43 +00:00
Zachary Turner 88c6b62e9c Don't #include ClangASTContext.h from Module.h
This is part of a larger effort to reduce header file footprints.
Combined, these patches reduce the build time of LLDB locally by
over 30%.  However, they touch many files and make many changes,
so will be submitted in small incremental pieces.

Reviewed By: Greg Clayton
Differential Revision: http://reviews.llvm.org/D8022

llvm-svn: 231097
2015-03-03 18:34:26 +00:00
Ilia K 686b1fe65a Fix FileSpec::GetPath to return null-terminated strings
Summary:
Before this fix the FileSpec::GetPath() returned string which might be without '\0' at the end.
It could have happened if the size of buffer for path was less than actual path.

Test case:
```
FileSpec test("/path/to/file", false);
char buf[]="!!!!!!";
test.GetPath(buf, 3);
```

Before fix:
```
   233          FileSpec test("/path/to/file", false);
   234          char buf[]="!!!!!!";
   235          test.GetPath(buf, 3);
   236
-> 237          if (core_file)
   238          {
   239              if (!core_file.Exists())
   240              {
(lldb) print buf
(char [7]) $0 = "/pa!!!"
```

After fix:
```
   233          FileSpec test("/path/to/file", false);
   234          char buf[]="!!!!!!";
   235          test.GetPath(buf, 3);
   236
-> 237          if (core_file)
   238          {
   239              if (!core_file.Exists())
   240              {
(lldb) print buf
(char [7]) $0 = "/p"
```

Reviewers: zturner, abidh, clayborg

Reviewed By: abidh, clayborg

Subscribers: tberghammer, vharron, lldb-commits, clayborg, zturner, abidh

Differential Revision: http://reviews.llvm.org/D7553

llvm-svn: 230787
2015-02-27 19:43:08 +00:00
Oleksiy Vyalov b071bee295 Use getProcessTriple inside HostInfoBase::ComputeHostArchitectureSupport instead of getDefaultTargetTriple.
http://reviews.llvm.org/D7893

llvm-svn: 230674
2015-02-26 20:02:13 +00:00
Oleksiy Vyalov 6801be3354 Add qModuleInfo request in order to get module information (uuid, triple,..) by module path from remote platform.
http://reviews.llvm.org/D7709

llvm-svn: 230556
2015-02-25 22:15:44 +00:00
Zachary Turner 49be160531 Revert "Fix warnings found with clang-cl."
SWIG doesn't like enum : unsigned.  Revert this until I can
fix this in a way that swig likes.

llvm-svn: 230531
2015-02-25 19:52:41 +00:00
Zachary Turner 171d943ac5 Fix warnings found with clang-cl.
Earlier this week I was able to get clang-cl on Windows to be
able to self host.  This opened the door to being able to
get a whole new slew of warnings for the Windows build.

This patch fixes all of the warnings, many of which were real
bugs.

llvm-svn: 230522
2015-02-25 18:42:47 +00:00
Pavel Labath 7257d28025 Skip symlinks to the original file when searching for debug info
Summary:
Symbols::LocateExecutableSymbolFile tries to locate the file in containing the debug info in a
splitdebug configuration. It tries to skip over the original file in its search path, but it was
easily fooled by symlinks. This changes the function to use llvm::sys::fs::equivalent, which can
correctly compare symlinks.

As a side effect, I had to fix one test because the address for the "abort" function resolves on
my system to "__GI_abort" now. With the debug info, the libc on my system contains two symbols
associated with the address of the abort function, and lldb prefers __GI_abort, possibly because
the debug info is associated with it. It would be nice at some point to have it prefer the public
symbol name.

Reviewers: emaste, zturner

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D7836

llvm-svn: 230476
2015-02-25 10:44:35 +00:00
Jason Molenda 671a29d30d When FileSpec::Resolve is given a bare file like "ls",
and llvm::sys::fs::make_absolute prepends the current
working directory to that path, leave the original
bare file name unchanged if $cwd/ls doesn't exist.

http://reviews.llvm.org/D7477
<rdar://problem/18775190>

llvm-svn: 230451
2015-02-25 02:35:25 +00:00
Greg Clayton 736888c84b Avoid crashing by not mmap'ing files on network mounted file systems.
This is implemented by making a new FileSystem function:

bool
FileSystem::IsLocal(const FileSpec &spec)

Then using this in a new function:

DataBufferSP
FileSpec::MemoryMapFileContentsIfLocal(off_t file_offset, size_t file_size) const;

This function only mmaps data if the file is a local file since that means we can reliably page in data. We were experiencing crashes where people would use debug info files on network mounted file systems and that mount would go away and cause the next access to a page that wasn't paged in to crash LLDB. 

We now avoid this by just copying the data into a heap buffer and keeping a permanent copy to avoid the crash. Updated all previous users of FileSpec::MemoryMapFileContentsIfLocal() in ObjectFile subclasses over to use the new FileSpec::MemoryMapFileContentsIfLocal() function.

<rdar://problem/19470249>

llvm-svn: 230283
2015-02-23 23:47:09 +00:00
Oleksiy Vyalov 7a9e76216b Introduce FileSystem::CalculateMD5AsString that supports any platform and make existing FileSystem::CalculateMD5 to use it.
http://reviews.llvm.org/D7771

llvm-svn: 230036
2015-02-20 18:34:03 +00:00
Oleksiy Vyalov 8bc34f4d96 Prevent LLGS from crashing when exiting - make NativeProcessLinux to wait until ThreadStateCoordinator is fully stopped before entering ~NativeProcessLinux.
http://reviews.llvm.org/D7692

llvm-svn: 229875
2015-02-19 17:58:04 +00:00
Tamas Berghammer 00e305d281 Create new platform: remote-android
* Create new platform plugin for lldb
* Create HostInfo class for android
* Create ProcessLauncher for android

Differential Revision: http://reviews.llvm.org/D7584

llvm-svn: 228943
2015-02-12 18:13:44 +00:00
Justin Hibbits 3b2ce022f2 Cast EOF to get a proper comparison.
On PowerPC, and maybe some other architectures, 'char' is unsigned.  Comparing
an unsigned char with a signed int (-1) is always false.  To fix this, down-cast
EOF to a char.

llvm-svn: 228909
2015-02-12 05:31:46 +00:00
Hafiz Abid Qadeer c4d5ed06cd Fix Mingw build.
Following changes are done.

Add missing headers.
Replace _snprintf with snprintf. It is already changed to _snprintf for MSVC.
Add a file in the build for autoconf.
Call DynamicLoaderWindows::Terminate and DynamicLoaderWindows::Initialize only for MSVC build.

Reviewed in http://reviews.llvm.org/D7536.

llvm-svn: 228822
2015-02-11 10:14:13 +00:00
Sylvestre Ledru 57958b5d35 Fix the LLDB build under Debian Kfreebsd
Summary:
I don't know if there is a better way for the change in source/Host/freebsd/ThisThread.cpp


Reviewers: emaste

Subscribers: hansw, emaste, lldb-commits

Differential Revision: http://reviews.llvm.org/D7441

llvm-svn: 228710
2015-02-10 17:16:13 +00:00
Justin Hibbits f9ee7e4ceb Fix sorting. Spotted by emaste.
llvm-svn: 228549
2015-02-08 21:34:29 +00:00
Justin Hibbits 2559abdaa1 PowerPC64 host also supports 32-bit binaries, so note it.
llvm-svn: 228548
2015-02-08 21:23:27 +00:00
Hafiz Abid Qadeer 93ad6b31ec Fix a handling of full path in break-insert.
For some time, eclipse (CDT) uses full path of the file in break-insert command
when putting breakpoint on a source line. On windows, a typical command looks
like the following.
56-break-insert -f F:\\work\\ws\\test\\main.c:49

Current implementation in lldb-mi have problem in 2 ways.
1. It was assuming that there will be only one : in the path which is wrong if full
path is supplied.
2. CDT sends out path with double backslashes in windows which gives error on 
resolution.

Fixed the : issue in lldb-mi. Changed FileSpec::Normalize to make sure that it
handles the path with \\ correctly. Added test cases to check for full path in
both lldb-mi and lldb. Also added a test case to check SBFileSpec with double
slashes.

llvm-svn: 228538
2015-02-08 20:21:08 +00:00
Tamas Berghammer 5830aa755b Fix TestThreadSpecificBreakpoint with LLGS
* Set the state of the process into running/stepping on continue/step operations
* Add mutex to use transactions in Thread State Coordinator
** It is required because the events from two Signal Handler or form a Signal handler and a Resume request shouldn't overlap
* Send Stop Replay Packet only when the state of the process changed

Differential Revision: http://reviews.llvm.org/D7374

llvm-svn: 228387
2015-02-06 10:42:33 +00:00
Pavel Labath 97a9ac1982 Avoid leaking log file descriptors into the inferior process.
Summary:
This commit adds a new open flag File::eOpenOptionCloseOnExec (i.e., O_CLOEXEC), and adds it to
the list of flags when opening log files (#ifndef windows). A regression test is included.

Reviewers: vharron, clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D7412

llvm-svn: 228310
2015-02-05 16:44:42 +00:00
Greg Clayton ff48e4bea0 Fixed bugs in the multi-threaded access in HostInfoBase. Prior to this fix, static bool variables were used but this is not sufficient. We now use std::call_once in all places where the previous static bool code was used to try to implement thread safety.
This was causing code that opened multiple targets to try and get a path to debugserver from the GDB remote communication class, and it would get the LLDB path and some instances would return empty strings and it would cause debugserver to not be found.

<rdar://problem/18756927>

llvm-svn: 227935
2015-02-03 02:05:44 +00:00
Chaoren Lin 18fe6404f9 Implement setting and clearing watchpoints.
llvm-svn: 227930
2015-02-03 01:51:47 +00:00
Chaoren Lin 2fe1d0abc2 Moving header files from source/Host/common to proper location.
llvm-svn: 227929
2015-02-03 01:51:38 +00:00
Chaoren Lin 28e57429fc Share crash information between LLGS and local POSIX debugging with
CrashReason class. Deliver crash information from LLGS to lldb via
description field of thread stop packet.

llvm-svn: 227926
2015-02-03 01:51:25 +00:00
Jason Molenda 3db7ebc87f If lldb is being built with ASAN instrumentation, have lldb
create its own threads with 8MB additional maximum stack size.
Extra room is needed for the bookkeeping needed for this 
instrumentation.

llvm-svn: 227421
2015-01-29 06:28:36 +00:00
Chaoren Lin d4aa215c90 Fix copy paste error in file header.
llvm-svn: 227222
2015-01-27 18:40:25 +00:00
Vince Harron b956a81efb fixed up some logging messages (options and wait_pid were swapped)
llvm-svn: 226956
2015-01-23 22:48:28 +00:00
Kate Stone 6d3dabc622 Workaround for what looks like an OS X-specific libedit issue
Other platforms may benefit from something similar if issues arise.  The
libedit library doesn't explicitly initialize the curses termcap library,
which it gets away with until TERM is set to VT100 where it stumbles over
an implementation assumption that may not exist on other platforms.

<rdar://problem/17581929>

llvm-svn: 226891
2015-01-23 01:06:10 +00:00
Jason Molenda 03176d781f File::Read(), when asked to read the contents of a file into a heap
buffer and to add a nul terminator byte, was incorrectly resizing
its buffer so the nul terminator was not included.

Problem found by clang ASAN instrumentation when using an
expression prefix file which was read via this mechanism.

<rdar://problem/19556459> 

llvm-svn: 226753
2015-01-22 00:41:05 +00:00
Greg Clayton 7bd4c60043 Abstract the details from regex.h a bit more by not allowing people to specify compile and execute flags for regular expressions. Also enable better regular expressions if they are available by check if the REG_ENHANCED is available and using it if it is.
Since REG_ENHANCED is available on MacOSX, this allow the use of \d (digits) \b (word boundaries) and much more without affecting other systems.

<rdar://problem/12082562>

llvm-svn: 226704
2015-01-21 21:51:02 +00:00
Greg Clayton e72ea04b4d Remove unused function:
lldb::pid_t
Host::LaunchApplication (const FileSpec &app_file_spec);

This had use of a function FSPathMakeRef(const UInt8*, FSRef *, ...) that was deprecated in 10.8. 

Removing this fucntion since it wasn't used and was causing warnings.

llvm-svn: 226608
2015-01-20 21:05:21 +00:00
Jason Molenda 3bc66f1f47 Fix creation of StringRef in FileSpec::ResolveUsername()
so it doesn't assume that the SmallVector<char> will have
nul terminator.  It did not in at least one case.
Caught by ASAN instrumentation.

llvm-svn: 226544
2015-01-20 04:20:42 +00:00
Vince Harron eb303ee5df Added Connection::GetURI()
This function returns a URI of the resource that the connection is connected to. This is especially important for connections established by accepting a connection from a remote host.

Also added implementations for ConnectionMachPort, ConnectionSharedMemory, 
Also fixed up some documentation in Connection::Write
Renamed ConnectionFileDescriptorPosix::SocketListen to ConnectionFileDescriptorPosix::SocketListenAndAccept
Fixed a log message in Socket.cpp

Differential Review: http://reviews.llvm.org/D7026

llvm-svn: 226362
2015-01-17 02:20:29 +00:00
Vince Harron ded5ff6fce Compile fix for WIN32
llvm-svn: 226301
2015-01-16 19:07:30 +00:00
Vince Harron 76861ea8f7 minor refactoring to remove unneeded/unspecific header files
Differential review: http://reviews.llvm.org/D6919

llvm-svn: 226249
2015-01-16 06:47:43 +00:00
Vince Harron 014bb7da79 Add Socket::Get[Remote/Local]IpAddress and unit tests
Differential Revision: http://reviews.llvm.org/D6917

llvm-svn: 226234
2015-01-16 00:47:08 +00:00
Vince Harron 5275aaa0cc Moved Args::StringToXIntYZ to StringConvert::ToXIntYZ
The refactor was motivated by some comments that Greg made
http://reviews.llvm.org/D6918

and also to break a dependency cascade that caused functions linking
in string->int conversion functions to pull in most of lldb

llvm-svn: 226199
2015-01-15 20:08:35 +00:00
Oleksiy Vyalov 4771829225 Extend PipePosix with support for named pipes/timeout-based IO and integrate it with GDBRemoteCommunication / lldb-gdbserver - include reviews fixes.
http://reviews.llvm.org/D6954

llvm-svn: 225923
2015-01-14 01:31:27 +00:00
Oleksiy Vyalov d5f8b6a6ca Extend PipePosix with support for named pipes/timeout-based IO and integrate it with GDBRemoteCommunication / lldb-gdbserver.
http://reviews.llvm.org/D6954

llvm-svn: 225849
2015-01-13 23:19:40 +00:00
Zachary Turner 270e99ab0a Fix some posix assumptions related to running shell commands.
This is a resubmit of r223548, which was reverted due to breaking
tests on Linux and Mac.

This resubmit fixes the reason for the revert by adding back some
accidentally removed code which appends -c to the command line
when running /bin/sh.

This resubmit also differs from the original patch in that it sets
the architecture on the ProcessLaunchInfo.  A follow-up patch will
refactor this to separate the logic for different platforms.

Differential Revision: http://reviews.llvm.org/D6553

Reviewed By: Greg Clayton

llvm-svn: 223695
2014-12-08 21:36:42 +00:00
Jim Ingham 4623b9d3e2 Reverting r223548 which broke running in the shell on OS X.
llvm-svn: 223568
2014-12-06 01:41:10 +00:00
Jim Ingham 67d7af9c34 Fix a type (MAX_PATH instead of PATH_MAX) and remove an unused variable.
llvm-svn: 223559
2014-12-06 01:03:17 +00:00
Zachary Turner 00cdc98b7f Fix some posix assumptions related to running shell commands.
Differential Revision: http://reviews.llvm.org/D6553

Reviewed By: Greg Clayton

llvm-svn: 223548
2014-12-06 00:14:24 +00:00
Sean Callanan b1e1c62fac Add support for embedding Clang compiler headers
like tgmath.h and stdarg.h into the LLDB installation,
and then finding them through the Host infrastructure.

Also add a script to actually do this on Mac OS X.

llvm-svn: 223430
2014-12-05 01:15:04 +00:00
Zachary Turner c7a17ed460 Only normalize FileSpec paths *after* resolving them.
Normalizing paths before resolving them can cause the path to
become denormalized after resolution.

llvm-svn: 223087
2014-12-01 23:13:32 +00:00
Oleksiy Vyalov e13d71c57c Refactor SocketAddress::getaddrinfo - avoid calling IsValid if ::getaddrinfo has failed.
Otherwise, IsValid crashes on assertation in GetFamilyLength.

llvm-svn: 222862
2014-11-27 00:32:54 +00:00
Jim Ingham 893c932acf This is the first step of making lldb able to create target-specific things
(e.g. breakpoints, stop-hooks) before we have any targets - for instance in 
your ~/.lldbinit file.  These will then get copied over to any new targets 
that get created.  So far, you can only make stop-hooks.

Breakpoints will have to learn to move themselves from target to target for
us to get them from no-target to new-target.

We should also make a command & SB API way to prime this ur-target.

llvm-svn: 222600
2014-11-22 01:42:44 +00:00
Zachary Turner c30189921e Change HostThread::GetNativeThread() to return a derived reference.
Previously using HostThread::GetNativeThread() required an ugly
cast to most-derived type.  This solves the issue by simply returning
the derived type directly.

llvm-svn: 222185
2014-11-17 22:42:57 +00:00
Zachary Turner d553d00c79 Disable Editline on Windows.
Editline does not work correctly on Windows.  This goes back at
least to r208369, and as a result r210105 was submitted to disable
libedit at runtime on Windows.

More recently, r222163 was submitted which re-writes editline
entirely, but makes the situation even worse on Windows, to the
point that it doesn't even compile.  While it would be easy to
fix the compilation failure, this patch simply stops compiling
Editline entirely on Windows, as the simple compilation fix would
still result in a broken use of select on Windows, and as such a
broken implementation of Editline.

Since Editline was already disabled to begin with on Windows, we
don't attempt to fix the compilation failure or the underlying
issues, and instead just disable it "even more".

llvm-svn: 222177
2014-11-17 21:31:18 +00:00
Zachary Turner 05d77c8b71 Fix broken build after signature change of ResolveExecutable.
llvm-svn: 222176
2014-11-17 21:30:58 +00:00
Jason Molenda 557109377d Small tweaks to make the editline sources match the lldb
source layout.

llvm-svn: 222171
2014-11-17 20:10:15 +00:00
Kate Stone e30f11d9ee Complete rewrite of interactive editing support for single- and multi-line input.
Improvements include:
* Use of libedit's wide character support, which is imperfect but a distinct improvement over ASCII-only
* Fallback for ASCII editing path
* Support for a "faint" prompt clearly distinguished from input
* Breaking lines and insert new lines in the middle of a batch by simply pressing return
* Joining lines with forward and backward character deletion
* Detection of paste to suppress automatic formatting and statement completion tests
* Correctly reformatting when lines grow or shrink to occupy different numbers of rows
* Saving multi-line history, and correctly preserving the "tip" of history during editing
* Displaying visible ^C and ^D indications when interrupting input or sending EOF
* Fledgling VI support for multi-line editing
* General correctness and reliability improvements

llvm-svn: 222163
2014-11-17 19:06:59 +00:00
Jim Ingham 96a1596a7a For some reason, sometimes the directory paths that clang emits have internal
relative paths, like:

/whatever/llvm/lib/Sema/../../include/llvm/Sema/

That causes problems with our type uniquing, since we use the declaration file
and line as one component of the uniquing, and different ways of getting to the
same file will have different directory spellings, though they are functionally
equivalent.  We end up with two copies of the exact same type because of this, 
and that makes the expression parser give "duplicate type" errors.

I added a method to resolve paths with ../ in them and used that in the FileSpec::Equals,
for comparing Declarations and for doing Breakpoint compares as well, since they also
suffer from this if you specify breakpoints by full path (since nobody knows what
../'s to insert...)

<rdar://problem/18765814>

llvm-svn: 222075
2014-11-15 01:54:26 +00:00
Oleksiy Vyalov 477e42a6fb Apply SOCK_CLOEXEC flag to socket API functions in order to avoid handle leakage to a forked child process.
http://reviews.llvm.org/D6204

llvm-svn: 222004
2014-11-14 16:25:18 +00:00
Vince Harron 01e87d3fe2 fix minor comment typo
llvm-svn: 221950
2014-11-13 23:45:59 +00:00
Shawn Best 8da0bf3b7c LLGS Android target support - for Andy Chien : http://reviews.llvm.org/D6166
llvm-svn: 221570
2014-11-08 01:41:49 +00:00
Enrico Granata 404ab37e8b Fix the build for LLVM changes
llvm-svn: 221286
2014-11-04 19:33:45 +00:00
Zachary Turner 7c2896a234 Implement explicit thread stack size specification on Windows.
llvm-svn: 220596
2014-10-24 22:06:29 +00:00
Zachary Turner 10687b0ea5 Remove LLDB_DEFAULT_SHELL #define, and determine this at runtime.
Differential Revision: http://reviews.llvm.org/D5805
Reviewed by: Greg Clayton

llvm-svn: 220217
2014-10-20 17:46:43 +00:00
Greg Clayton 807b6b326d Allow ThreadLauncher::LaunchThread() to specify a minimum stack byte size when launching threads.
This defaults to zero, which means to use the system default.

NOTE: Windows will need to implement this.

<rdar://problem/18644448>

llvm-svn: 219821
2014-10-15 18:03:59 +00:00
Zachary Turner cb37ddda0d Remove some unnecessary headers from Host.cpp
After the recent migration of code out of Host.cpp, many
unnecessary headers were still being included.  This prunes the
include list down to only what is still necessary.

llvm-svn: 219814
2014-10-15 17:27:11 +00:00
Jason Molenda 68c8521e71 Ensure that m_syntax is initialized in all the FileSpec
constructors.
clang static analyzer fixit.

llvm-svn: 219768
2014-10-15 03:04:33 +00:00
Eric Christopher cba08bd9b2 Remove unused variable.
llvm-svn: 219751
2014-10-15 00:15:26 +00:00
Zachary Turner 172d37d3b9 Create a process launcher abstraction.
This implements Host::LaunchProcess for windows, and in doing so
does some minor refactor to move towards a more modular process
launching design.

The original motivation for this is that launching processes on
windows needs some very windows specific code, which would live
most appropriately in source/Host/windows somewhere.  However,
there is already some common code that all platforms use when
launching a process before delegating to the platform specific
stuff, which lives in source/Host/common/Host.cpp which would
be nice to reuse without duplicating.

This commonality has been abstracted into MonitoringProcessLauncher,
a class which abstracts out the notion of launching a process using
an arbitrary algorithm, and then monitoring it for state changes.

The windows specific launching code lives in ProcessLauncherWindows,
and the posix specific launching code lives in ProcessLauncherPosix.
When launching a process MonitoringProcessLauncher is created, and
then an appropriate delegate launcher is created and given to the
MonitoringProcessLauncher.

Reviewed by: Greg Clayton
Differential Revision: http://reviews.llvm.org/D5781

llvm-svn: 219731
2014-10-14 21:55:08 +00:00
Zachary Turner b2df30d652 Fix deadlock in Python one-line execution.
Python one-line execution was using ConnectionFileDescriptor to do
a non-blocking read against a pipe.  This won't work on Windows,
as CFD is implemented using select(), and select() only works with
sockets on Windows.

The solution is to use ConnectionGenericFile on Windows, which uses
the native API to do overlapped I/O on the pipe.  This in turn
requires re-implementing Host::Pipe on Windows using native OS
handles instead of the more portable _pipe CRT api.

Reviewed by: Greg Clayton
Differential Revision: http://reviews.llvm.org/D5679

llvm-svn: 219339
2014-10-08 20:38:41 +00:00
Todd Fiala e231efaee5 llgs: add logging to Native*Protocol breakpoints around byte values replaced and restored.
Useful for verifying what bytes a software breakpoint clobbers/restores.

llvm-svn: 219318
2014-10-08 17:14:53 +00:00
Zachary Turner c76a445279 Fixup some minor issues with HostProcess.
llvm-svn: 218684
2014-09-30 16:56:40 +00:00
Todd Fiala cacde7df6d Enable llgs to build against experimental Android AOSP lldb/llvm/clang/compiler-rt repos.
See http://reviews.llvm.org/D5495 for more details.

These are changes that are part of an effort to support building llgs, within the AOSP source tree, using the Android.mk
build system, when using the llvm/clang/lldb git repos from AOSP replaced with the experimental ones currently in
github.com/tfiala/aosp-{llvm,clang,lldb,compiler-rt}.

llvm-svn: 218568
2014-09-27 16:54:22 +00:00
Zachary Turner acee96ae52 Fix up the HostThread interface, making the interface simpler.
Reviewed by: Greg Clayton
Differential Revision: http://reviews.llvm.org/D5417

llvm-svn: 218325
2014-09-23 18:32:09 +00:00
Greg Clayton 615eb7e609 Test suite runs better again after recent fixes that would select a platform if a "file a.out" auto selected a different platform than the selected one.
Changes include:
- fix it so you can select the "host" platform using "platform select host"
- change all callbacks that create platforms to returns shared pointers
- fix TestImageListMultiArchitecture.py to restore the "host" platform by running "platform select host"
- Add a new "PlatformSP Platform::Find(const ConstString &name)" method to get a cached platform
- cache platforms that are created and re-use them instead of always creating a new one

llvm-svn: 218145
2014-09-19 20:11:50 +00:00
David Majnemer 8faf9370fa Clean-up warnings on Linux/GCC
llvm-svn: 217862
2014-09-16 06:34:29 +00:00
Jim Ingham ead45ccc2c Nope, I was right originally. ResolveUsername should resolve "~" to the
current user, and ResolvePartialUsername will resolve "~" to the list of
users.

llvm-svn: 217723
2014-09-12 23:50:36 +00:00
Jim Ingham 1adba8b6e3 Don't make paths with /Foo//bar, that confuses everybody down the line.
This gets the file completer for absolute paths working again.

llvm-svn: 217722
2014-09-12 23:39:38 +00:00
Jim Ingham 2f21bbc804 Revert 217719, that wasn't the right fix, that should complete user names, and
anyway /Vol doesn't complete correctly either.  Somehow we're chopping the names
up incorrectly before passing them into the completer.

llvm-svn: 217720
2014-09-12 23:04:40 +00:00
Jim Ingham 2614db1a13 ResolveUsername should resolve "~" to the user's home directory as well as "~/". This
gets command-line file completion from ~ working again.

llvm-svn: 217719
2014-09-12 22:59:05 +00:00
Todd Fiala 7206c6d11f llgs: fix thread names broken by recent native thread changes.
* Fixes the local stack variable return pointer usage in NativeThreadLinux::GetName().
* Changes NativeThreadProtocol::GetName() to return a std::string.
* Adds a unit test to verify thread names don't regress in the future.  Currently only run on Linux since I know default thread names there.

llvm-svn: 217717
2014-09-12 22:51:49 +00:00
Todd Fiala 511e5cdce4 llgs: fix Ctrl-C inferior interrupt handling to do the right thing.
* Sends a SIGSTOP to the process.
* Fixes busted SIGSTOP handling.  Now builds a list of non-stopped
  that we wait for the PTRACE group-stop for.  When the final must-stop
  tid gets its group stop, we propagate the process state change.
  Only the signal receiving the notification of the pending SIGSTOP
  is marked with the SIGSTOP signal.  All the rest, if they weren't
  already stopped, are marked as stopped with signal 0.
* Fixes a few broken tests.
* Marks the Linux test I added earlier as expect-pass (no longer XFAIL).

Implements fix for http://llvm.org/bugs/show_bug.cgi?id=20908.

llvm-svn: 217647
2014-09-11 23:29:14 +00:00
Zachary Turner f5e4f37cb6 Update HostProcess to use the same facade pattern as HostThread.
llvm-svn: 217632
2014-09-11 22:22:16 +00:00
Zachary Turner 39de311071 Create a HostThread abstraction.
This patch moves creates a thread abstraction that represents a
thread running inside the LLDB process.  This is a replacement for
otherwise using lldb::thread_t, and provides a platform agnostic
interface to managing these threads.

Differential Revision: http://reviews.llvm.org/D5198

Reviewed by: Jim Ingham

llvm-svn: 217460
2014-09-09 20:54:56 +00:00
Todd Fiala 4ceced3f59 Consolidate UnixSignals setting/getting in Process.
See http://reviews.llvm.org/D5108 for details.

This change does the following:

* eliminates the Process::GetUnixSignals() virtual method and replaces with a fixed getter.
* replaces the Process UnixSignals storage with a shared pointer.
* adds a Process constructor variant that can be passed the UnixSignalsSP. When the constructor without the UnixSignalsSP is specified, the Host's default UnixSignals is used.
* adds a host-specific version of GetUnixSignals() that is used when we need the host's appropriate UnixSignals variant.
* replaces GetUnixSignals() overrides in PlatformElfCore, ProcessGDBRemote, ProcessFreeBSD and ProcessLinux with code that appropriately sets the Process::UnixSignals for the process.

This change also enables some future patches that will enable llgs to be used for local Linux debugging.

llvm-svn: 216748
2014-08-29 17:35:57 +00:00
Todd Fiala 0b903a0f69 Ensure the Host wait4 thread is able to show pid in thread name.
For hosts that cannot support long thread names, shrink the host
wait4 thread name so that it does not truncate the PID in the thread name.

Change by Shawn Best.

llvm-svn: 216686
2014-08-28 21:21:39 +00:00
Todd Fiala a9882cee50 llgs: add proper exec support for Linux.
This change:
* properly captures execs in NativeProcessLinux.
* clears out all non-main-thread thread metadata in NativeProcessLinux on exec.
* adds a DidExec() method to the NativeProcessProtocol delegate.
* clears out the auxv data cache when we exec (on Linux).

This is a small part of the llgs for local Linux debugging work going on here:
https://github.com/tfiala/lldb/tree/dev-llgs-local

I'm breaking it into small patches.

llvm-svn: 216670
2014-08-28 15:46:54 +00:00
Zachary Turner 58a559c07e Update LLDB to use LLVM's DynamicLibrary.
LLDB had implemented its own DynamicLibrary class for plugin
support.  LLVM has an equivalent mechanism, so this patch deletes
the duplicated code in LLDB and updates LLDB to reference the
mechanism provided by LLVM.

llvm-svn: 216606
2014-08-27 20:15:09 +00:00
Todd Fiala e4d6922ceb lldb AArch64 should be listed as yet another 64-bit architecture in HostInfoBase.
See http://reviews.llvm.org/D5070.

Change by Paul Osmialowski.

llvm-svn: 216556
2014-08-27 16:21:41 +00:00
Greg Clayton 0d8400c89c Change back all paths returns for lldb::PathType enumerations from HostInfo::GetLLDBPath() to return the directories in the FileSpec.m_directory field to match previous implementations. This change previously broke some path stuff in upstream branches.
llvm-svn: 216398
2014-08-25 18:21:06 +00:00
Zachary Turner c25146b67b Fixes a few more places where we were manually setting the filename.
llvm-svn: 216247
2014-08-21 23:56:55 +00:00
Zachary Turner a21fee0ee4 Move the rest of the HostInfo functions over.
This should bring HostInfo up to 99% completion.  The remainder
of code in Host will be split into instantiatable classes
representing host processes, threads, dynamic libraries, and
process launching strategies.

llvm-svn: 216230
2014-08-21 21:49:24 +00:00
Zachary Turner b245ecac79 Move GetUsername and GetGroupname to HostInfoPosix
llvm-svn: 216210
2014-08-21 20:02:17 +00:00
Zachary Turner 673b6e4f3a Convert static constructors to be explicitly initialized at startup
llvm-svn: 216197
2014-08-21 17:57:03 +00:00
Zachary Turner 42ff0ad882 Move Host::GetLLDBPath to HostInfo.
This continues the effort to get Host code moved over to HostInfo,
and removes many more instances of preprocessor defines along the
way.

llvm-svn: 216195
2014-08-21 17:29:12 +00:00
Zachary Turner 75172a9567 Revert "Avoid global contstructors and place static variables
inside classes as static local variables and remove the static
ivars. Subclasses should use the accessor functions."

This change moved global statics to function local statics, but
forgot to make the locals static in the function, breaking all
platforms.  Furthermore, MSVC doesn't support thread-safe function
local statics, so any use of a function local static on non
primitive types is undefined behavior on MSVC.

Reverting due to the fact that it's broken on all platforms, but
would like to have a discussion about the thread-safety issue
before it goes back in.

llvm-svn: 216123
2014-08-20 20:53:05 +00:00
Greg Clayton 051fd7cc10 Avoid global contstructors and place static variables inside classes as static local variables and remove the static ivars. Subclasses should use the accessor functions.
llvm-svn: 216080
2014-08-20 17:00:21 +00:00
Zachary Turner 13b1826104 Move Host::GetArchitecture to HostInfo::GetArchitecture.
As a side effect, this patch also eliminates all of the
preprocessor conditionals previously used to implement
GetArchitecture().

llvm-svn: 216074
2014-08-20 16:42:51 +00:00
Zachary Turner 97a14e60b2 Move some Host logic into HostInfo class.
This patch creates a HostInfo class, a static class used to answer
basic queries about the host platform.  As part of this change,
some functionality is moved from Host to HostInfo, and relevant
fixups are performed in the rest of the codebase.

This is part of a larger effort to isolate more code in the Host
layer into platform-specific groups, to make it easier to make
platform specific changes for a particular Host without breaking
other hosts.

Reviewed by: Greg Clayton

Differential Revision: http://reviews.llvm.org/D4963

llvm-svn: 215992
2014-08-19 17:18:29 +00:00
Zachary Turner 4ec5d0d0e1 In the CMake build, convert lldbHost to be a single static library.
Previously lldbHost was built as multiple static libraries such as
lldbHostCommon, lldbHostLinux, etc.  With this patch, the CMake
build produces only a single static library, lldbHost, whose file
set is dynamically created based on the platform.

llvm-svn: 215792
2014-08-15 23:50:36 +00:00
Zachary Turner c00cf4a068 Move FileSystem functions out of Host and into their own classes.
More specifically, this change can be summarized as follows:
1) Makes an lldbHostPosix library which contains code common to
   all posix platforms.
2) Creates Host/FileSystem.h which defines a common FileSystem
   interface.
3) Implements FileSystem.h in Host/windows and Host/posix.
4) Creates Host/FileCache.h, implemented in Host/common, which
   defines a class useful for storing handles to open files needed
   by the debugger.

Differential Revision: http://reviews.llvm.org/D4889

llvm-svn: 215775
2014-08-15 22:04:21 +00:00
Greg Clayton 5acc12550f Don't crash when specifying a core file that isn't readable.
Fixes include:
1 - added new FileSpec method: bool FileSpec::Readable()
2 - detect when an executable is not readable and give an appropriate error for:
    (lldb) file /tmp/unreadablefile
3 - detect when a core file is not readable and give an appropriate error
4 - detect when a specified core file doesn't exist and give an appropriate error
    
<rdar://problem/17727734>

llvm-svn: 215741
2014-08-15 18:00:45 +00:00
Zachary Turner 696b52878f Refactor FileAction out of ProcessLaunchInfo.
FileAction was previously a nested class in ProcessLaunchInfo.
This led to some unfortunate style consequences, such as requiring
the AddPosixSpawnFileAction() funciton to be defined in the Target
layer, instead of the more appropriate Host layer.  This patch
makes FileAction its own independent class in the Target layer,
and then moves AddPosixSpawnFileAction() into Host as a result.

Differential Revision: http://reviews.llvm.org/D4877

llvm-svn: 215649
2014-08-14 16:01:25 +00:00
Saleem Abdulrasool 1abc1a5e14 Host: remove unused function
Remove unused static function identified by GCC 4.8.2.

llvm-svn: 215300
2014-08-09 22:25:06 +00:00
Zachary Turner e88be264de Implement some common file operations on Windows.
llvm-svn: 215273
2014-08-09 01:29:07 +00:00
Zachary Turner b6d9924439 Fix bug causing FileSpec::GetPath() to crash with a null dest.
llvm-svn: 215262
2014-08-08 23:54:35 +00:00
Jim Ingham e1d263eefc r215124 missed a few Mac OS X only uses of FileSpec::Resolve, fixing to match
the new signature.

llvm-svn: 215159
2014-08-07 22:37:43 +00:00
Zachary Turner 3f55974024 Optimizations for FileSpec.
llvm-svn: 215124
2014-08-07 17:33:36 +00:00
Zachary Turner df62f20c75 Fix FileSpec to be able to understand Windows paths.
This patch adds the notion of a "path syntax" to FileSpec.  There
are two syntaxes (Posix and Windows) and one "meta syntax",
Host Native, which uses the current platform to figure out the
appropriate syntax for host paths.

This allows paths from one platform to be represented and
manipulated on another platform even if they have different path
syntaxes.

llvm-svn: 215123
2014-08-07 17:33:07 +00:00
Zachary Turner 98688922b7 Creates a socket host object.
This patch moves the logic of many common socket operations into
its own class lldb_private::Socket.  It then modifies the
ConnectionFileDescriptor class, and a few users of that class,
to use this new Socket class instead of hardcoding socket logic
directly.

Finally, this patch creates a common interface called IOObject for
any objects that support reading and writing, so that endpoints
such as sockets and files can be treated the same.

Differential Revision: http://reviews.llvm.org/D4641

Reviewed by: Todd Fiala, Greg Clayton

llvm-svn: 214984
2014-08-06 18:16:26 +00:00
Greg Clayton c76fa8a3eb Resolve the executable _before_ we try to get the module specifications.
Also fixed the host 32 and 64 bit arch to return "x86_64-apple-macosx" again instead of "x86_64-apple-" (unspecified OS) after recent changes.

<rdar://problem/17845078> 

llvm-svn: 214223
2014-07-29 21:27:21 +00:00
Zachary Turner d8a5273993 Fix compile error on Windows.
A piece of a future patch accidentally made it in, this simply
fixes the error.

llvm-svn: 214161
2014-07-29 05:39:21 +00:00
Zachary Turner 9e757b7ebe Use llvm Support functions to get the user's home directory.
Assuming that the user's home directory is at ~ is incorrect on
Windows.  This patch delegates the request to LLVM's support
library, which already provides a cross-platform implementation
of this function.

Differential Revision: http://reviews.llvm.org/D4674

llvm-svn: 214093
2014-07-28 16:45:05 +00:00
Todd Fiala e88aea3234 Fix configure/make builds on MacOSX.
Change by Keno Fischer.

llvm-svn: 213904
2014-07-24 23:22:58 +00:00
Todd Fiala 015d818b59 Enable lldb-platform exe support for Linux.
This change enables lldb-platform for Linux.  In addition, it does the following:

* fixes Host::GetLLDBPath() to work on Linux/*BSD for ePathTypeSupportExecutableDir-relative paths.

* adds more logging and comments around lldb-platform startup and remote lldb-platform usage.

* refactors lldb-platform remote-* support for Darwin and Linux into PlatformPOSIX.  This, in theory, is the bulk of what is needed for *BSD to make remote connections to lldb-platform as well (although I haven't tested that yet).  FreeBSD can make similar changes to their Platform* as was made here for PlatformLinux to pick up the rest of the bits.

* teaches GDBRemoteCommunication to use lldb-gdbserver for non-Apple hosts.

llvm-svn: 213707
2014-07-22 23:41:36 +00:00
David Majnemer 8490da15a8 Host: Fix a pointer-to-function to void-pointer cast
reinterpret_cast may not convert a pointer-to-function to a
void-pointer.  Take a detour through intptr_t and *then* convert to a
pointer-to-function.

This silences a warning emitted by GCC when building LLDB.

Differential Revision: http://reviews.llvm.org/D4631

llvm-svn: 213693
2014-07-22 22:00:42 +00:00
Zachary Turner c9bf0c70b5 Make lldb -P work on Windows.
lldb -P, which outputs its python path, works by using Host-layer
facilities to get information about the loaded python module.  This
Host functionality was unimplemented on Windows, so this patch
implements it.  Additionally, it removes a pexpect dependency from
the test runner and uses an equivalent invocation of subprocess.

Reviewed by: Todd Fiala

Differential Revision: http://reviews.llvm.org/D4548

llvm-svn: 213410
2014-07-18 20:36:08 +00:00
Greg Clayton d46bb62610 Fixing warnings shouldn't introduce a crasher.
Fix the warning the correct way without making things crash when ENABLE_MUTEX_ERROR_CHECKING is non enabled.

<rdar://problem/17703039>

llvm-svn: 213394
2014-07-18 18:32:45 +00:00