Summary:
Since the function is way too big already, I tried at least to factor out the
timeout computation stuff into a separate function. I've tried to make the new
code semantically equivalent, and it also makes sense when I look at it as a done
deal.
Reviewers: jingham
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D27258
llvm-svn: 288326
This changes most of the class to use the new Timeout class. The one function
left is RunThreadPlan, which I left for a separate change as the function is
massive. A couple of things to call out:
- I've renamed the affected functions to match the listener interface names. This
should also help catch any places I did not convert at compile time.
- I've deleted the WaitForState function as it was unused.
llvm-svn: 288241
Summary:
Communication classes use the Timeout<> class to specify the timeout. Listener
class was converted to chrono some time ago, but it used a different meaning for
a timeout of zero (Listener: infinite wait, Communication: no wait). Instead,
Listener provided separate functions which performed a non-blocking event read.
This converts the Listener class to the new Timeout class, to improve
consistency. It also allows us to get merge the different GetNextEvent*** and
WaitForEvent*** functions into one. No functional change intended.
Reviewers: jingham, clayborg, zturner
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D27136
llvm-svn: 288238
Summary:
Fix step-over when SymbolContext.function is missing and symbol is present.
With targets from our build configuration,
ThreadPlanStepOverRange::IsEquivalentContext fails to fire for relevant frames,
leading to ShouldStop() returning true prematurely.
The frame's SymbolContext, and m_addr_context have:
- comp_unit set and matching
- function = nullptr
- symbol set and matching (but this is never checked)
My naive guess is that the context should be equivalent in this case :-)
Reviewers: jingham
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D26804
llvm-svn: 287274
This was a bit tricky, especially for things like
OptionValueArray and OptionValueDictionary since they do some
funky string parsing. Rather than try to re-write line-by-line
I tried to make the StringRef usage idiomatic, even though
it meant often re-writing from scratch large blocks of code
in a different way while keeping true to the original intent.
The finished code is a big improvement though, and often much
shorter than the original code. All tests and unit tests
pass on Windows and Linux.
llvm-svn: 287242
Also significantly reduced the indentation level by use of
early returns, and simplified some of the logic by using
StringRef functions such as consumeInteger() and getAsInteger()
instead of strtoll, etc.
llvm-svn: 287189
This is a large API change that removes the two functions from
StreamString that return a std::string& and a const std::string&,
and instead provide one function which returns a StringRef.
Direct access to the underlying buffer violates the concept of
a "stream" which is intended to provide forward only access,
and makes porting to llvm::raw_ostream more difficult in the
future.
Differential Revision: https://reviews.llvm.org/D26698
llvm-svn: 287152
This is forcing to use Error::success(), which is in a wide majority
of cases a lot more readable.
Differential Revision: https://reviews.llvm.org/D26481
llvm-svn: 286561
I added a "thread-stop-format" to distinguish between the form
that is just the thread info (since the stop printing immediately prints
the frame info) and one with more frame 0 info - which is useful for
"thread list" and the like.
I also added a frame.no-debug boolean to the format entities so you can
print frame information differently between frames with source info and those
without.
This closes https://reviews.llvm.org/D26383.
<rdar://problem/28273697>
llvm-svn: 286288
Implement the C++ type lookup support in terms of this general scavenger
The idea is that we may want other languages to do debug info based search (exclusively, or as an add-on to runtime/module based searching) and it makes sense to avoid duplicating this functionality
llvm-svn: 285727
This reverts commit r284795, as it breaks watchpoint handling on arm (and
presumable all architectures that report watchpoint hits without executing the
tripping instruction).
There seems to be something fundamentally wrong with this patch: it uses
process_sp->AddPreResumeAction to re-enable the watchpoint, but the whole point
of the step-over-watchpoint logic (which AFAIK is the only user of this class) is
to disable the watchpoint *after* we resume to do the single step.
I have no idea how to fix this except by reverting the offending patch.
llvm-svn: 284817
Also, watchpoint commands, like breakpoint commands, need to run in async mode.
This was causing intermittent failures in TestWatchpointCommandPython.py, which is now solid.
llvm-svn: 284795
Summary:
"Initialization of function-local statics is guaranteed to occur only once even when called from
multiple threads, and may be more efficient than the equivalent code using std::call_once."
<http://en.cppreference.com/w/cpp/thread/call_once>
I'd add that it's also more readable.
Reviewers: clayborg, zturner
Subscribers: lldb-commits
Differential Revision: http://reviews.llvm.org/D17710
llvm-svn: 284601
which specifies a file path and UUID but not an architecture, open
the file at that path and try every one of the architectures in the
file to see if there is a UUID match. Currently we'll pick the
first slice of a multi-architecture file and return that as the
match, and when the UUID doesn't match because it's the wrong
architecture, we'll end up ignoring the file.
<rdar://problem/28487804>
llvm-svn: 283295
This allows debugging of the JIT and other analyses of the internals of the
expression parser. I've also added a testcase that verifies that the setting
works correctly when off and on.
llvm-svn: 282434
This change is very mechanical. All it does is change the
signature of `Options::GetDefinitions()` and `OptionGroup::
GetDefinitions()` to return an `ArrayRef<OptionDefinition>`
instead of a `const OptionDefinition *`. In the case of the
former, it deletes the sentinel entry from every table, and
in the case of the latter, it removes the `GetNumDefinitions()`
method from the interface. These are no longer necessary as
`ArrayRef` carries its own length.
In the former case, iteration was done by using a sentinel
entry, so there was no knowledge of length. Because of this
the individual option tables were allowed to be defined below
the corresponding class (after all, only a pointer was needed).
Now, however, the length must be known at compile time to
construct the `ArrayRef`, and as a result it is necessary to
move every option table before its corresponding class. This
results in this CL looking very big, but in terms of substance
there is not much here.
Differential revision: https://reviews.llvm.org/D24834
llvm-svn: 282188
The switch coveres all possible values. If a new one is added in the
future the compiler will start warning, providing a notification that
the switch needs updating.
llvm-svn: 282111
This change introduces optional marking of the column within a source
line where a thread is stopped. This marking will show up when the
source code for a thread stop is displayed, when the debug info
knows the column information, and if the optional column marking is
enabled.
There are two separate methods for handling the marking of the stop
column:
* via ANSI terminal codes, which are added inline to the source line
display. The default ANSI mark-up is to underline the column.
* via a pure text-based caret that is added in the appropriate column
in a newly-inserted blank line underneath the source line in
question.
There are some new options that control how this all works.
* settings set stop-show-column
This takes one of 4 values:
* ansi-or-caret: use the ANSI terminal code mechanism if LLDB
is running with color enabled; if not, use the caret-based,
pure text method (see the "caret" mode below).
* ansi: only use the ANSI terminal code mechanism to highlight
the stop line. If LLDB is running with color disabled, no
stop column marking will occur.
* caret: only use the pure text caret method, which introduces
a newly-inserted line underneath the current line, where
the only character in the new line is a caret that highlights
the stop column in question.
* none: no stop column marking will be attempted.
* settings set stop-show-column-ansi-prefix
This is a text format that indicates the ANSI formatting
code to insert into the stream immediately preceding the
column where the stop column character will be marked up.
It defaults to ${ansi.underline}; however, it can contain
any valid LLDB format codes, e.g.
${ansi.fg.red}${ansi.bold}${ansi.underline}
* settings set stop-show-column-ansi-suffix
This is the text format that specifies the ANSI terminal
codes to end the markup that was started with the prefix
described above. It defaults to: ${ansi.normal}. This
should be sufficient for the common cases.
Significant leg-work was done by Adrian Prantl. (Thanks, Adrian!)
differential review: https://reviews.llvm.org/D20835
reviewers: clayborg, jingham
llvm-svn: 282105
This updates getters and setters to use StringRef instead of
const char *. I tested the build on Linux, Windows, and OSX
and saw no build or test failures. I cannot test any BSD
or Android variants, however I expect the required changes
to be minimal or non-existant.
llvm-svn: 282079
This patch also marks the const char* versions as =delete to prevent
their use. This has the potential to cause build breakages on some
platforms which I can't compile. I have tested on Windows, Linux,
and OSX. Best practices for fixing broken callsites are outlined in
Args.h in a comment above the deleted function declarations.
Eventually we can remove these =delete declarations, but for now they
are important to make sure that all implicit conversions from
const char * are manually audited to make sure that they do not invoke a
conversion from nullptr.
llvm-svn: 281919
Pavel Labath