Commit Graph

34 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
Saleem Abdulrasool
16ff860469 remove use of Mutex in favour of std::{,recursive_}mutex
This is a pretty straightforward first pass over removing a number of uses of
Mutex in favor of std::mutex or std::recursive_mutex. The problem is that there
are interfaces which take Mutex::Locker & to lock internal locks. This patch
cleans up most of the easy cases. The only non-trivial change is in
CommandObjectTarget.cpp where a Mutex::Locker was split into two.

llvm-svn: 269877
2016-05-18 01:59:10 +00:00
Pavel Labath
998bdc5b75 Generalize child process monitoring functions
Summary:
This replaces the C-style "void *" baton of the child process monitoring functions with a more
C++-like API taking a std::function. The motivation for this was that it was very difficult to
handle the ownership of the object passed into the callback function -- each caller ended up
implementing his own way of doing it, some doing it better than others. With the new API, one can
just pass a smart pointer into the callback and all of the lifetime management will be handled
automatically.

This has enabled me to simplify the rather complicated handshake in Host::RunShellCommand. I have
left handling of MonitorDebugServerProcess (my original motivation for this change) to a separate
commit to reduce the scope of this change.

Reviewers: clayborg, zturner, emaste, krytarowski

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D20106

llvm-svn: 269205
2016-05-11 16:59:04 +00:00
Ed Maste
fe5a6428b8 Remove POSIX thread/process abstraction
As of r240543 ProcessPOSIX and POSIXThread are used only on FreeBSD, so
just roll them into ProcessFreeBSD and FreeBSDThread.

Differential Revision:	http://reviews.llvm.org/D10698

llvm-svn: 243427
2015-07-28 15:45:57 +00:00
Ed Maste
41fba2b5d0 Refactor many file functions to use FileSpec over strings.
This is the FreeBSD change for r238604.

llvm-svn: 238752
2015-06-01 15:24:37 +00:00
Pavel Labath
3a2da9eb0d Fix TestProcesslaunch regression caused by D7372
Summary:
After closing all the leaked file descriptors to the inferior tty, the following problem occured:
- when stdin, stdout and stderr are redirected, there are no slave descriptors open (which is good)
- lldb has a reader thread, which attempts to read from the master end of the tty
- this thread receives an EOF
- in response, it closes it's master end
- as this is the last open file descriptor for the master end, this deletes the tty and sends
  SIGHUP to the inferior (this is bad)

I fix this problem by making sure the master end remains open for the duration of the inferior
process by storing a copy of the file descriptor in ProcessMonitor. I create a copy to avoid
ownership issues with the reading thread.

Reviewers: ovyalov, emaste

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D7440

llvm-svn: 228391
2015-02-06 11:32:52 +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
Oleksiy Vyalov
5d06474b29 Add test for denied process attach by pid and fix found bugs in Process/ProcessPOSIX.cpp
and FreeBSD/ProcessMonitor.

http://reviews.llvm.org/D6240

llvm-svn: 222372
2014-11-19 18:27:45 +00:00
Ed Maste
3967764b98 Fix FreeBSD build after thread changes
More work on the GetName/SetName arguments (thread_t vs tid_t) is needed
but this change should restore the build and basic operation.

llvm-svn: 217502
2014-09-10 13:38:47 +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
0bce1b67a3 Fix Linux to respect ASLR settings when launching processes to debug locally and remotely.
See the following links for details:
http://llvm.org/bugs/show_bug.cgi?id=20658
See http://reviews.llvm.org/D4941

llvm-svn: 215822
2014-08-17 00:10:50 +00:00
Ed Maste
70882939f1 Implement ProcessMonitor::Kill for FreeBSD
On FreeBSD ptrace(PT_KILL) is used to terminate the traced process
(as if PT_CONTINUE had been used with SIGKILL as the signal to be
delivered), and is the desired behaviour for ProcessPOSIX::DoDestroy.

On Linux, after ptrace(PTRACE_KILL) the traced process still exists
and can be interrogated.  It is only upon resume that it exits as though
it received SIGKILL.

For now I'm committing only the FreeBSD change, until the Linux change
(review D3159) is successfully tested.

http://llvm.org/pr18894

llvm-svn: 205315
2014-04-01 14:30:56 +00:00
Ed Maste
a4be2c5dcd FreeBSD hardware watchpoint implementation
Implement x86_64 debug register read/write in support of hardware
watchpoints. Hoist LinuxThread::TraceNotify code back into
POSIXThread::TraceNotify()

Patch by John Wolfe.

We still need to rework this later to avoid the #ifdef FreeBSD.

llvm-reviews.chandlerc.com/D2572
llvm.org/pr16706

llvm-svn: 201706
2014-02-19 18:34:06 +00:00
Ed Maste
1e8f163709 Remove FIXME comments about tids on FreeBSD that no longer apply
Spotted by John Wolfe.

llvm-svn: 200092
2014-01-25 18:45:40 +00:00
Ed Maste
7fd845cc9d Threaded inferior support for FreeBSD
Modelled in part on GDBRemoteCommunicationClient.

Review: http://llvm-reviews.chandlerc.com/D2267
llvm-svn: 196787
2013-12-09 15:51:17 +00:00
Ed Maste
502f9020a7 PT_CONTINUE and PT_STEP are process-scope on FreeBSD
Although ptrace() can be passed a PID or TID for PT_CONTINUE and PT_STEP,
the kernel operates on all threads in the process in both cases.  (See
the FOREACH_THREAD_IN_PROC in FreeBSD's sys_process.c:kern_ptrace.)

Make this clear by using the PID from the ProcessMonitor instance.

llvm-svn: 195656
2013-11-25 16:31:23 +00:00
Ed Maste
68f517938a Add stub FreeBSD ProcessMonitor::ReadThreadPointer
llvm-svn: 192994
2013-10-18 19:16:44 +00:00
Ed Maste
756e1ff676 Apply ProcessMonitor changes from r190820 to FreeBSD
llvm-svn: 190954
2013-09-18 19:34:08 +00:00
Andrew Kaylor
d4d5499d6c Fixing a problem with thread creation signal order dependency
llvm-svn: 190831
2013-09-17 00:30:24 +00:00
Ed Maste
819e39901f FreeBSD: Replace GetSignalInfo with GetLwpInfo
For thread support we are going to need other members of struct
ptrace_lwpinfo.

llvm-svn: 186505
2013-07-17 14:02:20 +00:00
Andrew Kaylor
bc68b431ba Stop process monitor from ProcessPOSIX::Finalize
llvm-svn: 186039
2013-07-10 21:57:27 +00:00
Andrew Kaylor
6578cb6478 Reverting ProcessMonitor shared pointer changes
llvm-svn: 185981
2013-07-09 22:36:48 +00:00
Andrew Kaylor
214f3a8a78 Use shared pointers to hold the process in ProcessMonitor
llvm-svn: 185946
2013-07-09 16:44:27 +00:00
Ed Maste
a02f553e50 Sync parts of FreeBSD Process plugin with Linux
* Use PseudoTerminal to fix stdio handling / passthrough to the inferior
  process.
* Add log messages equivalent to the Linux ones.
* Port changes relating to process creation / termination.

This revision contains changes equivalent to (parts of) SVN revisions
109318 142384 166055 168503 169645 177116 182809.

llvm-svn: 185442
2013-07-02 16:45:16 +00:00
Matt Kopec
edee182bef Fix FreeBSD build due to previous changes to ProcessMonitor::Detach.
llvm-svn: 183150
2013-06-03 19:48:53 +00:00
Ashok Thirumurthi
acbb1a5db5 Fixed "log enable linux registers" and added a test.
- Eliminated the use of static for methods that read m_register_infos, so that these routines can be implemented in the base class.
- Eliminated m_register_infos in the base class because this is not used when derived classes call UpdateRegisterInfo.
- Also moved the namespace using declarations from headers to source files.

Thanks to Daniel and Samuel for their review feedback.

llvm-svn: 181538
2013-05-09 19:59:47 +00:00
Ashok Thirumurthi
0f3b9b819a Build fixes for FreeBSD 9.1.
- TODO: Support extended register sets on FreeBSD.

Patch by Samuel Jacob.

llvm-svn: 180879
2013-05-01 20:38:19 +00:00
Matt Kopec
c6672c8783 Rollback r177173. Some OSs may not have ptrace extensions which lldb expects when building. This needs to be accounted for.
llvm-svn: 177176
2013-03-15 20:00:39 +00:00
Matt Kopec
6773276351 Add ptrace extensions to query a register set.
Patch by Ashok Thirumurthi.

llvm-svn: 177173
2013-03-15 19:06:45 +00:00
Matt Kopec
7de484640e Improve/Cleanup ptrace wrapper and remove dependency on user.h
Patch by Ashok Thirumurthi.

llvm-svn: 176558
2013-03-06 17:20:48 +00:00
Daniel Malea
6217d2ae37 Implement -w flag to process launch (allow launching inferior process in different working directory) on Linux/FreeBSD
- fixes test case TestProcessLaunch

llvm-svn: 171854
2013-01-08 14:49:22 +00:00
Daniel Malea
f0da371bdc Allow reading registers by thread ID in ProcessMonitor (Linux implementation)
- make FreeBSD ProcessMonitor API thread-ready

Patch by Matt Kopec!

llvm-svn: 170445
2012-12-18 19:50:15 +00:00
Daniel Malea
a35970a6f6 Fix Linux bug that leaves lldb in invalid state after expression evaluation times out.
- Handle EINVAL return code from ptrace(GETSIGINFO, ...): not an error, but 'group-stop' state on Linux
- propagate SIGSTOP to inferior in above case
- this commit resolves the failure in expression_command/timeout testcase

Thanks to Sean Callanan & Matt Kopec for helping debug this problem

llvm-svn: 168523
2012-11-23 18:09:58 +00:00
Johnny Chen
9ed5b49c45 Fix incomplete commit of http://llvm.org/viewvc/llvm-project?rev=147609&view=rev:
This patch combines common code from Linux and FreeBSD into
a new POSIX platform.  It also contains fixes for 64bit FreeBSD.

The patch is based on changes by Mark Peek <mp@FreeBSD.org> and
"K. Macy" <kmacy@freebsd.org> in their github repo located at
https://github.com/fbsd/lldb.

llvm-svn: 147613
2012-01-05 21:48:15 +00:00