Commit Graph

58 Commits

Author SHA1 Message Date
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
Todd Fiala 759300192a Add StructuredData plugin type; showcase with new DarwinLog feature
Take 2, with missing cmake line fixed.  Build tested on
Ubuntu 14.04 with clang-3.6.

See docs/structured_data/StructuredDataPlugins.md for details.

differential review: https://reviews.llvm.org/D22976

reviewers: clayborg, jingham
llvm-svn: 279202
2016-08-19 04:21:48 +00:00
Todd Fiala a07e4a8352 Revert "Add StructuredData plugin type; showcase with new DarwinLog feature"
This reverts commit 1d885845d1451e7b232f53fba2e36be67aadabd8.

llvm-svn: 279200
2016-08-19 03:03:58 +00:00
Todd Fiala aef7de8492 Add StructuredData plugin type; showcase with new DarwinLog feature
See docs/structured_data/StructuredDataPlugins.md for details.

differential review: https://reviews.llvm.org/D22976

reviewers: clayborg, jingham
llvm-svn: 279198
2016-08-19 02:52:07 +00:00
Greg Clayton c6c420fca1 Switch over to using socketpair for local debugserver connections as they are twice as fast as TCP sockets (on macOS at least).
This change opens a socket pair and passes the second socket pair file descriptor down to the debugserver binary using a new option: "--fd=N" where N is the file descriptor. This file descriptor gets passed via posix_spawn() so that there is no need to do any bind/listen or bind/accept calls and eliminates the hanshake unix socket that is used to pass the result of the actual port that ends up being used so it can save time on launch as well as being faster.

This is currently only enabled on __APPLE__ builds. Other OSs should try modifying the #define from ProcessGDBRemote.cpp but the first person will need to port the --fd option over to lldb-server. Any OSs that enable USE_SOCKETPAIR_FOR_LOCAL_CONNECTION in their native builds can use the socket pair stuff. The #define is Apple only right now, but looks like:

#if defined (__APPLE__)
#define USE_SOCKETPAIR_FOR_LOCAL_CONNECTION 1
#endif

<rdar://problem/27814880> 

llvm-svn: 278524
2016-08-12 16:46:18 +00:00
Greg Clayton 7301d39401 debugserver should fflush its log stream in FileLogCallback, now it does.
<rdar://problem/24728287> 

llvm-svn: 268325
2016-05-02 22:53:08 +00:00
Jim Ingham 78591726fd Add a missing break.
llvm-svn: 260345
2016-02-10 01:33:58 +00:00
Greg Clayton 0e14c04479 If we set the DYLD_INSERT_LIBRARIES environment variable when launching debugserver, for use with /usr/lib/libgmalloc.dylib, then make sure we don't pass this environment variable on to any child processes.
llvm-svn: 260284
2016-02-09 21:20:17 +00:00
Ramkumar Ramachandra d5fa22620b Squelch a silly warning regarding an extra 'default' in 'case'
Let the editor also clean up whitespace for that file.

Reviewers: clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D13816

llvm-svn: 251979
2015-11-03 21:29:52 +00:00
Jason Molenda c611a74059 Upstreaming the apple internal changes that accumulated during the
previous release.  Most of the diffs are duplication in the xcode
project file caused by adding a "debugserver-mini" target.  Jim
Ingham added support for a new SPI needed to request app launches
on iOS.  Greg Clayton added code to indicate the platform of the
binary (macosx, ios, watchos, tvos) based on Mach-O load commands.
Jason Molenda added code so debugserver will identify when it is
running on a tvos/watchos device to lldb.

llvm-svn: 251091
2015-10-23 02:49:51 +00:00
Jason Molenda 3f661e0899 When debugserver is running on an iOS device, call
proc_set_wakemon_params() to raise the limit on the # of wakeups
per second that are acceptable before the system may send an 
EXC_RESOURCE signal to debugserver.  

<rdar://problem/19631512> 

llvm-svn: 241553
2015-07-07 04:15:43 +00:00
Greg Clayton ee2ed52584 Fix debugserver warnings on MacOSX.
llvm-svn: 231692
2015-03-09 19:45:23 +00:00
Jim Ingham cfae0b23b9 Fix a thinko in the case where we return a launch error with no error
string.  Return "<unknown error>" rather than the empty launch error...

<rdar://problem/20026469>

llvm-svn: 231287
2015-03-04 21:28:55 +00:00
Jason Molenda 36a216eefc Increase the gdb-remote packet timeout for the first packet we send
to the remote side (QStartNoAckMode) - it may take a little longer
than normal to get a reply.

In debugserver, hardcode the priority for several threads so they
aren't de-prioritized when a user app is using system resources.
Also, set the names of the threads.

<rdar://problem/17509866>

llvm-svn: 213828
2014-07-24 01:36:24 +00:00
Greg Clayton ce1843bcd6 Add an option for debugserver to propagate its environment to programs it launches using the --forward-env or -F:
% ./debugserver --forward-env localhost:1234 -- /bin/ls
% ./debugserver -F localhost:1234 -- /bin/ls

Also allow new environment variables to be set using the "--env" or "-e":

% ./debugserver --env FOO=1 --env BAR=2 localhost:1234 -- /bin/ls
% ./debugserver -e FOO=1 -e BAR=2 localhost:1234 -- /bin/ls

<rdar://problem/17350654> 

llvm-svn: 211200
2014-06-18 18:26:50 +00:00
Jason Molenda a332978b2a lldb arm64 import.
These changes were written by Greg Clayton, Jim Ingham, Jason Molenda.

It builds cleanly against TOT llvm with xcodebuild.  I updated the
cmake files by visual inspection but did not try a build.  I haven't
built these sources on any non-Mac platforms - I don't think this
patch adds any code that requires darwin, but please let me know if
I missed something.

In debugserver, MachProcess.cpp and MachTask.cpp were renamed to
MachProcess.mm and MachTask.mm as they picked up some new Objective-C
code needed to launch processes when running on iOS.

llvm-svn: 205113
2014-03-29 18:54:20 +00:00
Todd Fiala c3ec337e4d Since lldb version doesn’t have to be a valid floating point literal, like x.y.z,
the uses of DEBUGSERVER_VERSION_NUM are invalid and have to be removed.

Change by Kuba Ober.

llvm-svn: 203828
2014-03-13 18:30:04 +00:00
Greg Clayton 1681092f96 Remove an assertion that was being hit due to slow DNS name lookups on MacOSX for "localhost".
Changed all "localhost" to "127.0.0.1" to prevent potentially long name lookups.

<rdar://problem/16154630>

llvm-svn: 202424
2014-02-27 19:38:18 +00:00
Jim Ingham 5689a217e3 Switch debugserver to detach on error by default, and change the flag to kill-on-error.
Also fix the bug where lldb prints: "Got a connection and launched debugserver" rather
than the name of the process it actually launched.

llvm-svn: 202189
2014-02-25 19:57:47 +00:00
Jim Ingham 5881318c88 Allow debugserver to detach from the target if the connection is
unexpectedly closed.

llvm-svn: 202110
2014-02-25 04:53:13 +00:00
Greg Clayton c93068b54f Add the "--unix-socket" opton back as it was being used.
<rdar://problem/15622900>

llvm-svn: 196952
2013-12-10 19:36:45 +00:00
Greg Clayton d629980ab3 Replace all in_port_t with uint16_t to avoid compilation issues on different systems.
llvm-svn: 196586
2013-12-06 17:46:35 +00:00
Greg Clayton 00fe87b488 Modified local spawning in debugserver processes to use a new --reverse-connect option so that debugserver actually connects back to LLDB instead of LLDB connecting to debugserver.
This gets rid of our hacky "get_random_port()" which would grab a random port and tell debugserver to open that port. Now LLDB creates, binds, listens and accepts a connection by binding to port zero and sending the correctly bound port down as the host:port to connect back to.

Fixed the "ConnectionFileDescriptor" to be able to correctly listen for connections from a specified host, localhost, or any host. Prior to this fix "listen://" only accepted the following format:

listen://<port>

But now it can accept:

listen://<port>         // Listen for connection from localhost on port <port>
listen://<host>:<port>  // Listen for connection from <host> and <port>    
listen://*:<port>       // Listen for connection from any host on port <port>

llvm-svn: 196547
2013-12-05 22:58:22 +00:00
Greg Clayton 91a9b247d4 Switch local launching of debugserver over to always use a FIFO in order to handshake with the launched debugserver.
This helps ensure that the launched debugserver is ready and listening for a connection. Prior to this we had a race condition.

Consolidate the launching of debugserver into a single place: a static function in GDBRemoteCommunication.

llvm-svn: 196401
2013-12-04 19:19:12 +00:00
Greg Clayton d4724cfdb1 Make sure the getopt variables are correctly initialized for any option parsing.
Added a new "--port-offset PORT" option to lldb-platform so it can be used with USB mux type scenarios.

llvm-svn: 195486
2013-11-22 18:55:04 +00:00
Greg Clayton 854800287a Fixed up registers in debugserver.
- removed all gaps from the g/G packets
- optimized registers for x86_64 to not send/receive xmm0-xmm15 as well as ymm0-ymm15, now we only send ymm0-15 and xmm0-15 are now pseudo regs
- Fixed x86_64 floating point register gaps
- Fixed x86_64 so that xmm8-xmm15 don't overlap with ymm0-ymm3. This could lead to bad values showing in the debugger and was due to bad register info structure contents
- Fixed i386 so we only send ymm0-ymm7 and xmm0-xmm7 are now pseudo regs.
- Fixed ARM register definitions to not have any gaps
- Fixed it so value registers and invalidation registers are specified using register names which avoid games we had to play with register numbering in the ARM plugin.

llvm-svn: 194302
2013-11-09 00:33:46 +00:00
Greg Clayton fd23889e53 Remove the debugserver "--open-connection" option and obey the hostname that is passed into debugserver.
you can now specify:

debugserver host:port
debugserver port
debugserver /path/to/file

When "host" is specified, we will only accept connections from that host. If host is not specified, we default to "localhost".

llvm-svn: 183457
2013-06-06 22:44:19 +00:00
Greg Clayton b7ad58a0df <rdar://problem/13457391>
LLDB now can use a single dash for all long options for all commands form the command line and from the command interpreter. This involved just switching all calls from getopt_long() to getopt_long_only().

llvm-svn: 178789
2013-04-04 20:35:24 +00:00
Jason Molenda 6566d43207 Add two additional DNBLog's in places where we're about to kill
off the inferior process so we stand a better chance of understanding
what caused us to send a PT_KILL.
<rdar://problem/12720340> 

llvm-svn: 177817
2013-03-23 05:35:57 +00:00
Jason Molenda 45461571e7 Change debugserver to open the socket it listens
to in INADDR_LOOPBACK mode by default ("localhost only")
instead of INADDR_ANY ("accept connections from any system").

Add a new command line argument to debugserver, --open-connection
or -H which will enable the previous behavior.  It would be used
if you were doing two-system debugging, with lldb running on one
system and debugserver running on the other.  But it is a less
common workflow and should not be the default.

<rdar://problem/12583284> 

llvm-svn: 177790
2013-03-23 00:44:22 +00:00
Jim Ingham e2ff0ba20d Add a log line when debugserver exits, and clean up some of the other standard logs output to make it more useful.
llvm-svn: 176039
2013-02-25 19:31:37 +00:00
Han Ming Ong ab3b8b22a1 <rdar://problem/12720514> Sub-TLF: Provide service to profile the inferior
This allows client to query profiling states on the inferior.

llvm-svn: 168228
2012-11-17 00:21:04 +00:00
Jason Molenda 0b2dbe0ebe Fix an error message in debugserver so it doesn't print "Unable to
launch process (null)" because we changed argv while doing argument
parsing.

llvm-svn: 167202
2012-11-01 02:02:59 +00:00
Greg Clayton 43e0af06b4 Stop using the "%z" size_t modifier and cast all size_t values to uint64_t. Some platforms don't support this modification.
llvm-svn: 164148
2012-09-18 18:04:04 +00:00
Jim Ingham cd16df9154 Add "vAttachOrWait" to debugserver, so you can implement "attach to the process if it exists OR wait for it" without race conditions. Use that in lldb.
llvm-svn: 160578
2012-07-20 21:37:13 +00:00
Greg Clayton 23f59509a8 Ran the static analyzer on the codebase and found a few things.
llvm-svn: 160338
2012-07-17 03:23:13 +00:00
Jason Molenda 42999a48f9 Change #ifdef markers around lockdown and SpringBoard
calls to dpeend on WITH_SPRINGBOARD and WITH_LOCKDOWN
instead of __arm__.  Add an RNBSocket::useFD method.

llvm-svn: 151119
2012-02-22 02:18:59 +00:00
Greg Clayton 490fbbe270 Enabled the "printf" attribute on all debugserver logging functions and fixed
the ensuing mayhem.

llvm-svn: 143244
2011-10-28 22:59:14 +00:00
Johnny Chen 2fe7dd445b Incremental fixes of issues found by Xcode static analyzer.
llvm-svn: 137267
2011-08-10 23:01:39 +00:00
Jason Molenda 4e0c94be76 Handle the possible case where the process launch failed
but we don't have an error message.

llvm-svn: 134662
2011-07-08 00:00:32 +00:00
Greg Clayton 8d400e1750 Fixed an issue in the EmulateInstructionARM there the IT opcode was trying to
parse NOP instructions. I added the new table entries for the NOP for the
plain NOP, Yield, WFE, WFI, and SEV variants. Modified the opcode emulation
function EmulateInstructionARM::EmulateMOVRdSP(...) to notify us when it is
creating a frame. Also added an abtract way to detect the frame pointer 
register for both the standard ARM ABI and for Darwin.

Fixed GDBRemoteRegisterContext::WriteAllRegisterValues(...) to correctly be
able to individually write register values back if case the 'G' packet is
not implemented or returns an error.

Modified the StopInfoMachException to "trace" stop reasons. On ARM we currently
use the BVR/BCR register pairs to say "stop when the PC is not equal to the 
current PC value", and this results in a EXC_BREAKPOINT mach exception that
has 0x102 in the code.

Modified debugserver to create the short option string from long option
definitions to make sure it doesn't get out of date. The short option string
was missing many of the newer short option values due to a modification of
the long options defs, and not modifying the short option string.

llvm-svn: 131911
2011-05-23 18:04:09 +00:00
Greg Clayton 8b82f087a0 Moved the execution context that was in the Debugger into
the CommandInterpreter where it was always being used.

Make sure that Modules can track their object file offsets correctly to
allow opening of sub object files (like the "__commpage" on darwin).

Modified the Platforms to be able to launch processes. The first part of this
move is the platform soon will become the entity that launches your program
and when it does, it uses a new ProcessLaunchInfo class which encapsulates
all process launching settings. This simplifies the internal APIs needed for
launching. I want to slowly phase out process launching from the process
classes, so for now we can still launch just as we used to, but eventually
the platform is the object that should do the launching.

Modified the Host::LaunchProcess in the MacOSX Host.mm to correctly be able
to launch processes with all of the new eLaunchFlag settings. Modified any
code that was manually launching processes to use the Host::LaunchProcess
functions.

Fixed an issue where lldb_private::Args had implicitly defined copy 
constructors that could do the wrong thing. This has now been fixed by adding
an appropriate copy constructor and assignment operator.

Make sure we don't add empty ModuleSP entries to a module list.

Fixed the commpage module creation on MacOSX, but we still need to train
the MacOSX dynamic loader to not get rid of it when it doesn't have an entry
in the all image infos.

Abstracted many more calls from in ProcessGDBRemote down into the 
GDBRemoteCommunicationClient subclass to make the classes cleaner and more
efficient.

Fixed the default iOS ARM register context to be correct and also added support
for targets that don't support the qThreadStopInfo packet by selecting the
current thread (only if needed) and then sending a stop reply packet.

Debugserver can now start up with a --unix-socket (-u for short) and can 
then bind to port zero and send the port it bound to to a listening process
on the other end. This allows the GDB remote platform to spawn new GDB server
instances (debugserver) to allow platform debugging.

llvm-svn: 129351
2011-04-12 05:54:46 +00:00
Greg Clayton 95bf0fd3ab Added the ability to get a broadcaster event name for a given broadcaster
event.

Modified the ProcessInfo structure to contain all process arguments. Using the
new function calls on MacOSX allows us to see the full process name, not just
the first 16 characters. 

Added a new platform command: "platform process info <pid> [<pid> <pid> ...]"
that can be used to get detailed information for a process including all 
arguments, user and group info and more.

llvm-svn: 128694
2011-04-01 00:29:43 +00:00
Greg Clayton 7a5388bf75 Split all of the core of LLDB.framework/lldb.so into a
static archive that can be linked against. LLDB.framework/lldb.so
exports a very controlled API. Splitting the API into a static
library allows other tools (debugserver for now) to use the power
of the LLDB debugger core, yet not export it as its API is not
portable or maintainable. The Host layer and many of the other
internal only APIs can now be statically linked against.

Now LLDB.framework/lldb.so links against "liblldb-core.a" instead
of compiling the .o files only for the shared library. This fix
is only for compiling with Xcode as the Makefile based build already
does this.

The Xcode projecdt compiler has been changed to LLVM. Anyone using
Xcode 3 will need to manually change the compiler back to GCC 4.2,
or update to Xcode 4.

llvm-svn: 127963
2011-03-20 04:57:14 +00:00
Johnny Chen 725269a0b4 If the user sets a working directory path using "process launch -w <path>", honor that dir path;
otherwise, use the thing the debugserver is started with.

Fixed rdar://problem/9056462
The process launch flag '-w' for setting the current working directory not working?

llvm-svn: 126537
2011-02-26 01:36:13 +00:00
Greg Clayton 7133762232 Fixed CommandReturnObject::SetImmediateErrorFile() to set the correct stream.
Modifed lldb_private::Process to be able to handle connecting to a remote 
target that isn't running a process. This leaves lldb_private::Process in the
eStateConnected state from which we can then do an attach or launch.

Modified ProcessGDBRemote to be able to set stdin, stdout, stderr, working
dir, disable ASLR and a few other settings down by using new GDB remote 
packets. This allows us to keep all of our current launch flags and settings
intact and still be able to communicate them over to the remote GDB server.
Previously these were being sent as arguments to the debugserver binary that
we were spawning. Also modified ProcessGDBRemote to handle losing connection
to the remote GDB server and always exit immediately. We do this by watching
the lldb_private::Communication event bit for the read thread exiting in the
ProcessGDBRemote async thread.

Added support for many of the new 'Q' packets for setting stdin, stdout,
stderr, working dir and disable ASLR to the GDBRemoteCommunication class for
easy accesss.

Modified debugserver for all of the new 'Q' packets and also made it so that
debugserver always exists if it loses connection with the remote debugger.

llvm-svn: 126444
2011-02-24 22:24:29 +00:00
Johnny Chen a343545229 Trivial comment fix.
llvm-svn: 124195
2011-01-25 16:56:01 +00:00
Jim Ingham c530be664f Linebuffer the log file.
llvm-svn: 124103
2011-01-24 03:46:59 +00:00
Greg Clayton bd82a5d2cc Added a new variant of SBTarget::Launch() that deprectates the old one that
takes separate file handles for stdin, stdout, and stder and also allows for
the working directory to be specified.

Added support to "process launch" to a new option: --working-dir=PATH. We
can now set the working directory. If this is not set, it defaults to that
of the process that has LLDB loaded. Added the working directory to the
host LaunchInNewTerminal function to allows the current working directory 
to be set in processes that are spawned in their own terminal. Also hooked this
up to the lldb_private::Process and all mac plug-ins. The linux plug-in had its
API changed, but nothing is making use of it yet. Modfied "debugserver" and
"darwin-debug" to also handle the current working directory options and modified
the code in LLDB that spawns these tools to pass the info along.

Fixed ProcessGDBRemote to properly pass along all file handles for stdin, stdout
and stderr. 

After clearing the default values for the stdin/out/err file handles for
process to be NULL, we had a crasher in UserSettingsController::UpdateStringVariable
which is now fixed. Also fixed the setting of boolean values to be able to
be set as "true", "yes", "on", "1" for true (case insensitive) and "false", "no",
"off", or "0" for false.

Fixed debugserver to properly handle files for STDIN, STDOUT and STDERR that are not
already opened. Previous to this fix debugserver would only correctly open and dupe
file handles for the slave side of a pseudo terminal. It now correctly handles
getting STDIN for the inferior from a file, and spitting STDOUT and STDERR out to
files. Also made sure the file handles were correctly opened with the NOCTTY flag
for terminals.

llvm-svn: 124060
2011-01-23 05:56:20 +00:00
Greg Clayton 6779606a7c Fixed an issue in "SBError SBProcess::Destroy ()" where it wasn't properly
checking the validity of the shared pointer prior to using it.

Fixed the GDB remote plug-in to once again watch for a reply from the "k" 
packet, and fixed the logic to make sure the thread requesting the kill
and the async thread play nice (and very quickly) by synchronizing the
packet sending and reply. I also tweaked some of the shut down packet
("k" kill, "D" detach, and the halt packet) to make sure they do the right
thing.

Fixed "StateType Process::WaitForProcessStopPrivate (...)" to correctly pass
the timeout along to WaitForStateChangedEventsPrivate() and made the function
behave correctly with respect to timing out.

Added separate STDIN, STDOUT, and STDERR support to debugserver. Also added
the start of being able to set the working directory for the inferior process.

llvm-svn: 124049
2011-01-22 23:43:18 +00:00