PlatformRemoteAppleWatch, PlatformRemoteAppleTV and remove the
GetFileInSDKRoot method from those classes.
The rewrite uses the more modern FileSpec etc API to simplify,
and handles the case where an SDK Root is given to lldb with
the "/Symbols" directory name already appended. The new version
will try appending "/Symbols" and "/Symbols.Internal" to the
sdk root directories, and will also try appending nothing to
the sdk root directory in case it's handed such an sdkroot.
<rdar://problem/28000054>
llvm-svn: 279688
When, for instance, "step-in" steps into a function that it doesn't want
to stop in (e.g. has no debug info) it will push a step-out plan to implement
the step out so it can then continue stepping. These step out's don't use
the result of the function stepped out of, so they shouldn't spend the time
to compute it.
llvm-svn: 279540
This is useful because that knowledge will in turn allow no-code-running formatting of boolean NSNumbers; but that's a commit that will have to wait Monday..
llvm-svn: 279353
expression evaluation.
OrcMCJITReplacement is a reimplementation of MCJIT using ORC components, and
provides an easy upgrade path to ORC for existing MCJIT clients. There should be
no functional changes resulting from this switch.
llvm-svn: 279327
Summary:
The tricky part here was that the exisiting implementation of WriteAllRegisters was expecting
hex-encoded data (as that was what the first implementation I replaced was using, but here we had
binary data to begin with. I thought the read/write register functions would be more useful if
they handled the hex-encoding themselves (all the other client functions provide the responses in
a more-or-less digested form). The read functions return a DataBuffer, so they can allocate as
much memory as they need to, while the write functions functions take an llvm::ArrayRef, as that
can be constructed from pretty much anything.
Reviewers: clayborg
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D23659
llvm-svn: 279232
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
Summary:
Before this, each function had a copy of the code which handled appending of the thread suffix to
the packet (or using $Hg instead). I have moved that code into a single function and made
everyone else use that. The function takes the partial packet as a StreamString rvalue reference,
to avoid a copy and to remind the users that the packet will have undeterminate contents after
the call.
This also fixes the incorrect formatting of the QRestoreRegisterState packet in case thread
suffix is not supported.
Reviewers: clayborg
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D23604
llvm-svn: 279040
Summary:
CPlusPlusLanguage::MethodName was not correctly parsing templated functions whose demangled name
included the return type -- the space before the function name was included in the "context" and
the context itself was not terminated correctly due to a misuse of the substr function (second
argument is length, not the end position). Fix that and add a regression test.
Reviewers: clayborg
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D23608
llvm-svn: 279038
Summary: Cmake 2.8 support is gone and not coming back. We can remove a bit of legacy code now.
Reviewers: zturner
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D23554
llvm-svn: 278924
Summary:
When saving/restoring registers the GDBRemoteRegisterContext class was manually constructing
the register save/restore packets. This creates appropriate helper functions in
GDBRemoteCommunicationClient, and switches the class to use those. It also removes what a
duplicate packet send in some of those functions, a thing that I can only attribute to a bad
merge artefact.
I also add a test framework for testing gdb-remote client functionality and add tests for the new
functions I introduced. I'd like to be able to test the register context changes in isolation as
well, but currently there doesn't seem to be a way to reasonably construct a standalone register
context object, so we'll have to rely on the end-to-end tests to verify that.
Reviewers: clayborg
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D23553
llvm-svn: 278915
Despite its comment, the function is only used in the Client class, and its presence was merely
complicating mock implementation in unit tests.
llvm-svn: 278785
Summary:
referencing a user-defined operator new was triggering an assert in clang because we were
registering the function name as string "operator new", instead of using the special operator
enum, which clang has for this purpose. Method operators already had code to handle this, and now
I extend this to cover free standing operator functions as well. Test included.
Reviewers: spyffe
Subscribers: sivachandra, paulherman, lldb-commits
Differential Revision: http://reviews.llvm.org/D17856
llvm-svn: 278670
Summary:
The following problem was occuring:
- broadcaster B had two listeners: L1 and L2 (thread T1)
- (T1) B has started to broadcast an event, it has locked a shared_ptr to L1 (in
ListenerIterator())
- on another thread T2 the penultimate reference to L1 was destroyed (the transient object in B is
now the last reference)
- (T2) the last reference to L2 was destroyed as well
- (T1) B has finished broadcasting the event to L1 and destroyed the last shared_ptr
- (T1) this triggered the destructor, which called into B->RemoveListener()
- (T1) all pointers in the m_listeners list were now stale, so RemoveListener emptied the list
- (T1) Eventually control returned to the ListenerIterator() for doing broadcasting, which was
still in the middle of iterating through the list
- (T1) Only now, it was holding onto a dangling iterator. BOOM.
I fix this issue by making sure nothing can interfere with the
iterate-and-remove-expired-pointers loop, by moving this logic into a single function, which
first locks (or clears) the whole list and then returns the list of valid and locked Listeners
for further processing. Instead of std::list I use an llvm::SmallVector which should hopefully
offset the fact that we create a copy of the list for the common case where we have only a few
listeners (no heap allocations).
A slight difference in behaviour is that now RemoveListener does not remove an element from the
list -- it only sets it's mask to 0, which means it will be removed during the next iteration of
GetListeners(). This is purely an implementation detail and it should not be externally
noticable.
I was not able to reproduce this bug reliably without inserting sleep statements into the code,
so I do not add a test for it. Instead, I add some unit tests for the functions that I do modify.
Reviewers: clayborg, jingham
Subscribers: tberghammer, lldb-commits
Differential Revision: https://reviews.llvm.org/D23406
llvm-svn: 278664
The commit started passing a nullptr port into GDBRemoteCommunication::StartDebugserverProcess.
The function was mostly handling the null value correctly, but it one case it did not check it's
value before assigning to it. Fix that.
llvm-svn: 278662
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
FD_SETSIZE on windows limits the number of file descriptors, rather than their individual
magnitude (the underlying implementation uses an array rather than a bitset). This meant that the
assert in the SelectHelper was incorrect, and failing all the time. Fix that.
I am not sure whether this should be #ifdef MSVC, or #ifdef WINDOWS, but my feeling is that a
more posix-conforming implementation on windows would choose the bitset implementation, so I'm
sticking with the former.
llvm-svn: 278500
Options used to store a reference to the CommandInterpreter instance
in the base Options class. This made it impossible to parse options
independent of a CommandInterpreter.
This change removes the reference from the base class. Instead, it
modifies the options-parsing-related methods to take an
ExecutionContext pointer, which the options may inspect if they need
to do so.
Closes https://reviews.llvm.org/D23416
Reviewers: clayborg, jingham
llvm-svn: 278440
Factor out some common logic used to find the runtime library in a list
of modules.
Differential Revision: https://reviews.llvm.org/D23150
llvm-svn: 278368
Adapters for instrumentation runtimes have to do two basic things:
1) Load a runtime library.
2) Install breakpoints in that library.
This logic is duplicated in the adapters for asan and tsan. Factor it
out and document bits of it to make it easier to add new adapters.
I tested this with check-lldb, and double-checked
testcases/functionalities/{a,t}san.
Differential Revision: https://reviews.llvm.org/D23043
llvm-svn: 278367
gettimeofday() isn't defined without a special header. Rather
than rely on C apis, let's just use modern C++11 to do this
portably on all platforms using std::chrono.
llvm-svn: 278182
It's always hard to remember when to include this file, and
when you do include it it's hard to remember what preprocessor
check it needs to be behind, and then you further have to remember
whether it's windows.h or win32.h which you need to include.
This patch changes the name to PosixApi.h, which is more appropriately
named, and makes it independent of any preprocessor setting.
There's still the issue of people not knowing when to include this,
because there's not a well-defined set of things it exposes other
than "whatever is missing on Windows", but at least this should
make it less painful to fix when problems arise.
This patch depends on LLVM revision r278170.
llvm-svn: 278177
Resumbitting the commit after fixing the following problems:
- broken unit tests on windows: incorrect gtest usage on my part (TEST vs. TEST_F)
- the new code did not correctly handle the case where we went to interrupt the process, but it
stopped due to a different reason - the interrupt request would remain queued and would
interfere with the following "continue". I also added a unit test for this case.
This reapplies r277156 and r277139.
llvm-svn: 278118
Jason Molenda