| Commit message (Collapse) | Author | Age | Files | Lines |
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Before we returned an error that was not exposed in the SB API and no useful
error message. This change returns eExpressionProducedNoResult and an
appropriate error string.
<rdar://problem/44539514>
Differential Revision: https://reviews.llvm.org/D53309
llvm-svn: 344647
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Differential Revision: https://reviews.llvm.org/D53010
llvm-svn: 344102
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existing EchoCommands and expose both as interpreter settings.
Summary:
Add settings to control command echoing:
```
(lldb) settings set interpreter.echo-commands true
(lldb) settings set interpreter.echo-comment-commands true
```
Both settings default to true, which keeps LLDB's existing behavior in non-interactive mode (echo all command inputs to the output).
So far the only way to change this behavior was the `--source-quietly` flag, which disables all output including evaluation results.
Now `echo-commands` allows to turn off echoing for commands, while evaluation results are still printed. No effect if `--source-quietly` was present.
`echo-comment-commands` allows to turn off echoing for commands in case they are pure comment lines. No effect if `echo-commands` is false.
Note that the behavior does not change immediately! The new settings take effect only with the next command source.
LLDB lit test are the main motivation for this feature. So far incoming `#CHECK` line have always been echoed to the output and so they could never fail. Now we can disable it in lit-lldb-init.
Todos: Finish test for this feature. Add to lit-lldb-init. Check for failing lit tests.
Reviewers: aprantl, jasonmolenda, JDevlieghere
Subscribers: friss, lldb-commits
Differential Revision: https://reviews.llvm.org/D52788
llvm-svn: 343859
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Occasionally didn't commit actual fix the first time.
llvm-svn: 343769
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llvm-svn: 343500
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Differential Revision: https://reviews.llvm.org/D52604
llvm-svn: 343348
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llvm::ArrayRef
Differential Revision: https://reviews.llvm.org/D49017
llvm-svn: 343130
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When creating a target, lldb loads all dependent files (i.e. libs in
LC_LOAD_DYLIB for Mach-O). This can be confusing, especially when two
versions of the same library end up in the shared cache. It's possible
to change this behavior, by specifying target create -d <target> these
dependents are not loaded.
This patch changes the default behavior to only load dependent files
only when the target is an executable. When creating a target for a
library, it is now no longer necessary to pass -d. The user can still
override this behavior by specifying the -d option to change this
behavior.
rdar://problem/43721382
Differential revision: https://reviews.llvm.org/D51934
llvm-svn: 342634
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This is an NFC commit to refactor the "load dependent files" parameter
from a boolean to an enum value. We want to be able to specify a
default, in which case we decide whether or not to load the dependent
files based on whether the target is an executable or not (i.e. a
dylib).
This is a dependency for D51934.
Differential revision: https://reviews.llvm.org/D51859
llvm-svn: 342633
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This change allows you to write a new breakpoint type where the
logic for setting breakpoints is determined by a Python callback
written using the SB API's.
Differential Revision: https://reviews.llvm.org/D51830
llvm-svn: 342185
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Summary:
This patch adds a framework for adding descriptions to the command completions we provide.
It also adds descriptions for completed top-level commands so that we can test this code.
Completions are in general supposed to be displayed alongside the completion itself. The descriptions
can be used to provide additional information about the completion to the user. Examples for descriptions
are function signatures when completing function calls in the expression command or the binary name
when providing completion for a symbol.
There is still some boilerplate code from the old completion API left in LLDB (mostly because the respective
APIs are reused for non-completion related purposes, so the CompletionRequest doesn't make sense to be
used), so that's why I still had to change some function signatures. Also, as the old API only passes around a
list of matches, and the descriptions are for these functions just another list, I had to add some code that
essentially just ensures that both lists are always the same side (e.g. all the manual calls to
`descriptions->AddString(X)` below a `matches->AddString(Y)` call).
The initial command descriptions that come with this patch are just reusing the existing
short help that is already added in LLDB.
An example completion with descriptions looks like this:
```
(lldb) pl
Available completions:
platform -- Commands to manage and create platforms.
plugin -- Commands for managing LLDB plugins.
```
Reviewers: #lldb, jingham
Reviewed By: #lldb, jingham
Subscribers: jingham, JDevlieghere, lldb-commits
Differential Revision: https://reviews.llvm.org/D51175
llvm-svn: 342181
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In a subsequent commit, I will need to expose the search depth
to the SB API's, so I'm moving this define into lldb-enumerations
where it will get added to the lldb module.
llvm-svn: 341690
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If you tried to complete somwthing like ~/., lldb would come up with a lot
of non-existent filenames by concatenating every exisitng file in the directory
with an initial '.'.
This was due to a workaround for an llvm::fs::path::filename behavior that
was not applied selectively enough.
llvm-svn: 341268
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The patch was originally written before we had a CompletionRequest,
so it still used a StringList to pass back the completions to
the request.
llvm-svn: 341124
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Summary:
This patch adds initial code completion support for the `expr` command.
We now have a completion handler in the expression CommandObject that
essentially just attempts to parse the given user expression with Clang with
an attached code completion consumer. We filter and prepare the
code completions provided by Clang and send them back to the completion
API.
The current completion is limited to variables that are in the current scope.
This includes local variables and all types used by local variables. We however
don't do any completion of symbols that are not used in the local scope (or
in some other way already in the ASTContext).
This is partly because there is not yet any code that manually searches for additiona
information in the debug information. Another cause is that for some reason the existing
code for loading these additional symbols when requested by Clang doesn't seem to work.
This will be fixed in a future patch.
Reviewers: jingham, teemperor
Reviewed By: teemperor
Subscribers: labath, aprantl, JDevlieghere, friss, lldb-commits
Differential Revision: https://reviews.llvm.org/D48465
llvm-svn: 341086
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This patch extends the SBAPI to allow for setting a breakpoint not
only at a specific line, but also at a specific (minimum) column. When
a column is specified, it will try to find an exact match or the
closest match on the same line that comes after the specified
location.
Differential Revision: https://reviews.llvm.org/D51461
llvm-svn: 341078
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llvm-svn: 339153
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These three classes have no external dependencies, but they are used
from various low-level APIs. Moving them down to Utility improves
overall code layering (although it still does not break any particular
dependency completely).
The XCode project will need to be updated after this change.
Differential Revision: https://reviews.llvm.org/D49740
llvm-svn: 339127
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Summary:
We already have the same check directly before, so this code can never be
reached (as seen in the test coverage).
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D50317
llvm-svn: 338976
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Summary:
We currently allow any completion handler to read and manipulate the list of matches we
calculated so far. This leads to a few problems:
Firstly, a completion handler's logic can now depend on previously calculated results
by another handlers. No completion handler should have such an implicit dependency,
but the current API makes it likely that this could happen (or already happens). Especially
the fact that some completion handler deleted all previously calculated results can mess
things up right now.
Secondly, all completion handlers have knowledge about our internal data structures with
this API. This makes refactoring this internal data structure much harder than it should be.
Especially planned changes like the support of descriptions for completions are currently
giant patches because we have to refactor every single completion handler.
This patch narrows the contract the CompletionRequest has with the different handlers to:
1. A handler can suggest a completion.
2. A handler can ask how many suggestions we already have.
Point 2 obviously means we still have a dependency left between the different handlers, but
getting rid of this is too large to just append it to this patch.
Otherwise this patch just completely hides the internal StringList to the different handlers.
The CompletionRequest API now also ensures that the list of completions is unique and we
don't suggest the same value multiple times to the user. This property has been so far only
been ensured by the `Option` handler, but is now applied globally. This is part of this patch
as the OptionHandler is no longer able to implement this functionality itself.
Reviewers: jingham, davide, labath
Reviewed By: davide
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D49322
llvm-svn: 338151
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Summary:
The dump function was the only part of this class which depended on
high-level functionality. This was due to the DumpDataExtractor
function, which uses info from a running target to control dump format
(although, RegisterValue doesn't really use the high-level part of
DumpDataExtractor).
This patch follows the same approach done for the DataExtractor class,
and extracts the dumping code into a separate function/file. This file
can stay in the higher level code, while the RegisterValue class and
anything that does not depend in dumping can stay go to lower layers.
The XCode project will need to be updated after this patch.
Reviewers: zturner, jingham, clayborg
Subscribers: lldb-commits, mgorny
Differential Revision: https://reviews.llvm.org/D48351
llvm-svn: 337832
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Summary:
As suggested in D48796, this patch replaces even more internal calls that were using the old
completion API style with a single CompletionRequest. In some cases we also pass an option
vector/index, but as we don't always have this information, it currently is not part of the
CompletionRequest class.
The constructor of the CompletionRequest is now also more sensible. You only pass the
user input, cursor position and your list of matches to the request and the rest will be
inferred (using the same code we used before to calculate this). You also have to pass these
match window parameters to it, even though they are unused right now.
The patch shouldn't change any behavior.
Reviewers: jingham
Reviewed By: jingham
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D48976
llvm-svn: 337031
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Summary:
This patch gets rid of the C-string parameter in the RawCommandObject::DoExecute function,
making the code simpler and less memory unsafe.
There seems to be a assumption in some command objects that this parameter could be a nullptr,
but from what I can see the rest of the API doesn't actually allow this (and other command
objects and related code pieces dereference this parameter without any checks).
Especially CommandObjectRegexCommand has error handling code for a nullptr that is now gone.
Reviewers: davide, jingham, teemperor
Reviewed By: teemperor
Subscribers: jingham, lldb-commits
Differential Revision: https://reviews.llvm.org/D49207
llvm-svn: 336955
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Summary:
This patch adds the possibility to specify an exit code when calling quit.
We accept any int, even though it depends on the user what happens if the int is
out of the range of what the operating system supports as exit codes.
Fixes rdar://problem/38452312
Reviewers: davide, jingham, clayborg
Reviewed By: jingham
Subscribers: clayborg, jingham, lldb-commits
Differential Revision: https://reviews.llvm.org/D48659
llvm-svn: 336824
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Summary:
A subset of the LLDB commands follows this command line interface style:
<command name> [arguments] -- <string suffix>
The parsing code for this interface has been so far been duplicated into the different
command objects which makes it hard to maintain and reuse elsewhere.
This patches improves the situation by adding a OptionsWithRaw class that centralizes
the parsing logic and allows easier testing. The different commands now just call this class to
extract the arguments and the raw suffix from the provided user input.
Reviewers: jingham
Reviewed By: jingham
Subscribers: mgorny, lldb-commits
Differential Revision: https://reviews.llvm.org/D49106
llvm-svn: 336723
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Summary:
This patch refactors the internal completion API. It now takes (as far as possible) a single
CompletionRequest object instead o half a dozen in/out/in-out parameters. The CompletionRequest
contains a common superset of the different parameters as far as it makes sense. This includes
the raw command line string and raw cursor position, which should make the `expr` command
possible to implement (at least without hacks that reconstruct the command line from the args).
This patch is not intended to change the observable behavior of lldb in any way. It's also as
minimal as possible and doesn't attempt to fix all the problems the API has.
Some Q&A:
Q: Why is this not fixing all the problems in the completion API?
A: Because is a blocker for the expr command completion which I want to get in ASAP. This is the
smallest patch that unblocks the expr completion patch and which allows trivial refactoring in the future.
The patch also doesn't really change the internal information flow in the API, so that hopefully
saves us from ever having to revert and resubmit this humongous patch.
Q: Can we merge all the copy-pasted code in the completion methods
(like computing the current incomplete arg) into CompletionRequest class?
A: Yes, but it's out of scope for this patch.
Q: Why the `word_complete = request.GetWordComplete(); ... ` pattern?
A: I don't want to add a getter that returns a reference to the internal integer. So we have
to use a temporary variable and the Getter/Setter instead. We don't throw exceptions
from what I can tell, so the behavior doesn't change.
Q: Why are we not owning the list of matches?
A: Because that's how the previous API works. But that should be fixed too (in another patch).
Q: Can we make the constructor simpler and compute some of the values from the plain command?
A: I think this works, but I rather want to have this in a follow up commit. Especially when making nested
request it's a bit awkward that the parsed arguments behave as both input/output (as we should in theory
propagate the changes on the nested request back to the parent request if we don't want to change the
behavior too much).
Q: Can't we pass one const request object and then just return another result object instead of mixing
them together in one in/out parameter?
A: It's hard to get keep the same behavior with that pattern, but I think we can also get a nice API with just
a single request object. If we make all input parameters read-only, we have a clear separation between what
is actually an input and what an output parameter (and hopefully we get rid of the in-out parameters).
Q: Can we throw out the 'match' variables that are not implemented according to the comment?
A: We currently just forward them as in the old code to the different methods, even though I think
they are really not used. We can easily remove and readd them once every single completion method just
takes a CompletionRequest, but for now I prefer NFC behavior from the perspective of the API user.
Reviewers: davide, jingham, labath
Reviewed By: jingham
Subscribers: mgorny, friss, lldb-commits
Differential Revision: https://reviews.llvm.org/D48796
llvm-svn: 336146
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The code was creating a StringRef to a temporary std::string. The
solution is to just drop the .str() from the original StringRef.
This manifested it self as the new TestCompletions test failing in some
configurations.
llvm-svn: 335960
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llvm-svn: 335273
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NFC
llvm-svn: 335102
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We didn't add the remaining path behind the '~' to the completion string,
causing it to just complete directories inside the user home directory. This
patch just adds the directory of the remaining path if there is one.
Fixes rdar://problem/40147002
llvm-svn: 334978
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SetFile has an optional style argument which defaulted to the native
style. This patch makes that argument mandatory so clients of the
FileSpec class are forced to think about the correct syntax.
At the same time this introduces a (protected) convenience method to
update the file from within the FileSpec class that keeps the current
style.
These two changes together prevent a potential pitfall where the style
might be forgotten, leading to the path being updated and the style
unintentionally being changed to the host style.
llvm-svn: 334663
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llvm-svn: 334614
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Summary:
As discussed in https://bugs.llvm.org/show_bug.cgi?id=37317,
FindGlobalVariables does not properly handle the case where
append=false. As this doesn't seem to be used in the tree, this patch
removes the parameter entirely.
Reviewers: clayborg, jingham, labath
Reviewed By: clayborg
Subscribers: aprantl, lldb-commits, kubamracek, JDevlieghere
Differential Revision: https://reviews.llvm.org/D46885
Patch by Tom Tromey <ttromey@mozilla.com>.
llvm-svn: 333639
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Reviewers: javed.absar
Subscribers: ki.stfu, JDevlieghere, lldb-commits
Differential Revision: https://reviews.llvm.org/D47421
llvm-svn: 333399
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this completes the Timeout migration started in r331880 with the
Predicate class.
llvm-svn: 331970
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Summary:
The comments on this class were out of date with the implementation, and
the implementation itself was inconsistent with our usage of the Timeout
class (I started converting everything to use this class back in D27136,
but I missed this one). I avoid duplicating the waiting logic by
introducing a templated WaitFor function, and make other functions
delegate to that. This function can be also used as a replacement for
the unused WaitForBitToBeSet functions I removed, if it turns out to be
necessary.
As this changes the meaning of a "zero" timeout, I tracked down all the
callers of these functions and updated them accordingly. Propagating the
changes to all the callers of RunShellCommand was a bit too much for
this patch, so I stopped there and will continue that in a follow-up
patch.
I also add some basic unittests for the functions I modified.
Reviewers: jingham, clayborg
Subscribers: mgorny, lldb-commits
Differential Revision: https://reviews.llvm.org/D46580
llvm-svn: 331880
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This change adds support for two types of Minidump CodeView records:
PDB70 (reference: https://crashpad.chromium.org/doxygen/structcrashpad_1_1CodeViewRecordPDB70.html)
This is by far the most common record type.
ELF BuildID (found in Breakpad/Crashpad generated minidumps)
This would set a proper UUID for placeholder modules, in turn enabling
an accurate match with local module images.
Differential Revision: https://reviews.llvm.org/D46292
llvm-svn: 331394
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This is intended as a clean up after the big clang-format commit
(r280751), which unfortunately resulted in many of the comment
paragraphs in LLDB being very hard to read.
FYI, the script I used was:
import textwrap
import commands
import os
import sys
import re
tmp = "%s.tmp"%sys.argv[1]
out = open(tmp, "w+")
with open(sys.argv[1], "r") as f:
header = ""
text = ""
comment = re.compile(r'^( *//) ([^ ].*)$')
special = re.compile(r'^((([A-Z]+[: ])|([0-9]+ )).*)|(.*;)$')
for line in f:
match = comment.match(line)
if match and not special.match(match.group(2)):
# skip intentionally short comments.
if not text and len(match.group(2)) < 40:
out.write(line)
continue
if text:
text += " " + match.group(2)
else:
header = match.group(1)
text = match.group(2)
continue
if text:
filled = textwrap.wrap(text, width=(78-len(header)),
break_long_words=False)
for l in filled:
out.write(header+" "+l+'\n')
text = ""
out.write(line)
os.rename(tmp, sys.argv[1])
Differential Revision: https://reviews.llvm.org/D46144
llvm-svn: 331197
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Normally, LLDB is creating a high-fidelity representation of a live
process, including a list of modules and sections, with the
associated memory address ranges. In order to build the module and
section map LLDB tries to locate the local module image (object file)
and will parse it.
This does not work for postmortem debugging scenarios where the crash
dump (minidump in this case) was captured on a different machine.
Fortunately the minidump format encodes enough information about
each module's memory range to allow us to create placeholder modules.
This enables most LLDB functionality involving address-to-module
translations.
Also, we may want to completly disable the search for matching
local object files if we load minidumps unless we can prove that the
local image matches the one from the crash origin.
(not part of this change, see: llvm.org/pr35193)
Example: Identify the module from a stack frame PC:
Before:
thread #1, stop reason = Exception 0xc0000005 encountered at address 0x164d14
frame #0: 0x00164d14
frame #1: 0x00167c79
frame #2: 0x00167e6d
frame #3: 0x7510336a
frame #4: 0x77759882
frame #5: 0x77759855
After:
thread #1, stop reason = Exception 0xc0000005 encountered at address 0x164d14
frame #0: 0x00164d14 C:\Users\amccarth\Documents\Visual Studio 2013\Projects\fizzbuzz\Debug\fizzbuzz.exe
frame #1: 0x00167c79 C:\Users\amccarth\Documents\Visual Studio 2013\Projects\fizzbuzz\Debug\fizzbuzz.exe
frame #2: 0x00167e6d C:\Users\amccarth\Documents\Visual Studio 2013\Projects\fizzbuzz\Debug\fizzbuzz.exe
frame #3: 0x7510336a C:\Windows\SysWOW64\kernel32.dll
frame #4: 0x77759882 C:\Windows\SysWOW64\ntdll.dll
frame #5: 0x77759855 C:\Windows\SysWOW64\ntdll.dll
Example: target modules list
Before:
error: the target has no associated executable images
After:
[ 0] C:\Windows\System32\MSVCP120D.dll
[ 1] C:\Windows\SysWOW64\kernel32.dll
[ 2] C:\Users\amccarth\Documents\Visual Studio 2013\Projects\fizzbuzz\Debug\fizzbuzz.exe
[ 3] C:\Windows\System32\MSVCR120D.dll
[ 4] C:\Windows\SysWOW64\KERNELBASE.dll
[ 5] C:\Windows\SysWOW64\ntdll.dll
NOTE: the minidump format also includes the debug info GUID, so we can
fill-in the module UUID from it, but this part was excluded from this change
to keep the changes simple (the LLDB UUID is hardcoded to be either 16 or
20 bytes, while the CodeView GUIDs are normally 24 bytes)
Differential Revision: https://reviews.llvm.org/D45700
llvm-svn: 330302
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Summary:
The Args class is used in plenty of places besides the command
interpreter (e.g., anything requiring an argc+argv combo, such as when
launching a process), so it needs to be in a lower layer. Now that the
class has no external dependencies, it can be moved down to the Utility
module.
This removes the last (direct) dependency from the Host module to
Interpreter, so I remove the Interpreter module from Host's dependency
list.
Reviewers: zturner, jingham, davide
Subscribers: mgorny, lldb-commits
Differential Revision: https://reviews.llvm.org/D45480
llvm-svn: 330200
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In preparation for using it in the API.
<rdar://problem/36555975>
llvm-svn: 330147
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Pointed out by Jim.
llvm-svn: 330047
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This allows us to collect useful metrics about lldb debugging sessions.
I thought that an example would be better than a thousand words:
Process 19705 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = step in
frame #0: 0x0000000100000fb4 blah`main at blah.c:3
1 int main(void) {
2 int a = 6;
-> 3 return 0;
4 }
(lldb) statistics enable
(lldb) frame var a
(int) a = 6
(lldb) expr a
(int) $1 = 6
(lldb) statistics disable
(lldb) statistics dump
Number of expr evaluation successes : 1
Number of expr evaluation failures : 0
Number of frame var successes : 1
Number of frame var failures : 0
Future improvements might include:
1. Passing a file, or implementing categories. The way this patch has
been implemented is generic enough to allow this to be extended
easily without breaking the grammar.
2. Adding an SBAPI and Python API for use in scripts.
Thanks to Jim Ingham for discussing the design with me.
<rdar://problem/36555975>
Differential Revision: https://reviews.llvm.org/D45547
llvm-svn: 330043
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Don't try to read the first argument till you've checked
that there is one.
llvm-svn: 329844
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Summary:
The idea behind this is to move the functionality which depend on other lldb
classes into a separate class. This way, the Args class can be turned
into a lightweight arc+argv wrapper and moved into the lower lldb
layers.
Reviewers: jingham, zturner
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D44306
llvm-svn: 329677
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This one will be used to print statistics about lldb sessions
(including, e.g. number of expression evaluation succeeded or
failed). I decided to commit the skeleton first so that we have
a clean reference on how a command should be implemented.
My future commits are going to populate this command and test
it.
<rdar://problem/36555975>
llvm-svn: 328378
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llvm-svn: 328373
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It wasn't even registered.
(lldb) apropos args
No commands found pertaining to 'args'. Try 'help' to see
a complete list of debugger commands.
llvm-svn: 328370
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I'm going to add a new commend so I figured I could do
some spring cleaning.
llvm-svn: 328368
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llvm-svn: 328278
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