| Commit message (Collapse) | Author | Age | Files | Lines |
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Summary:
We currently have several CommandObjects that manually reimplement the checking for a selected target
or a target in the execution context (which is the selected target when they are invoked). This patch removes
all these checks and replaces them by setting the eCommandRequiresTarget flag that Pavel suggested. With
this flag we are doing the same check but without having to duplicate this code in all these CommandObjects.
I also added a `GetSelectedTarget()` variant of the `GetSelectedOrDummyTarget()` function to the
CommandObject that checks that the flag is set and then returns a reference to the target. I didn't rewrite
all the `target` variables from `Target *` to `Target &` in this patch as last time this change caused a lot of merge
conflicts in Swift and I would prefer having that in a separate NFC commit.
Reviewers: labath, clayborg
Reviewed By: labath, clayborg
Subscribers: clayborg, JDevlieghere, jingham, amccarth, abidh, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D66863
llvm-svn: 370571
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target
Summary:
We always have a dummy target, so any error handling regarding a missing dummy target is dead code now.
Also makes the CommandObject methods that return Target& to express this fact in the API.
This patch just for the CommandObject part of LLDB. I'll migrate the rest of LLDB in a follow-up patch that's WIP.
Reviewers: labath
Reviewed By: labath
Subscribers: abidh, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D66737
llvm-svn: 369939
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Summary:
We currently have a bunch of code that is supposed to handle invalid command options, but
all this code is unreachable because invalid options are already handled in `Options::Parse`.
The only way we can reach this code is when we declare but then not implement an option
(which will be made impossible with D65386, which is also when we can completely remove
the `default` cases).
This patch replaces all this code with `llvm_unreachable` to make clear this is dead code
that can't be reached.
Reviewers: JDevlieghere
Reviewed By: JDevlieghere
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D66522
llvm-svn: 369625
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remove any undocumented/redundant return values
Summary:
We still have some leftovers of the old completion API in the internals of
LLDB that haven't been replaced by the new CompletionRequest. These leftovers
are:
* The return values (int/size_t) in all completion functions.
* Our result array that starts indexing at 1.
* `WordComplete` mode.
I didn't replace them back then because it's tricky to figure out what exactly they
are used for and the completion code is relatively untested. I finally got around
to writing more tests for the API and understanding the semantics, so I think it's
a good time to get rid of them.
A few words why those things should be removed/replaced:
* The return values are really cryptic, partly redundant and rarely documented.
They are also completely ignored by Xcode, so whatever information they contain will end up
breaking Xcode's completion mechanism. They are also partly impossible to even implement
as we assign negative values special meaning and our completion API sometimes returns size_t.
Completion functions are supposed to return -2 to rewrite the current line. We seem to use this
in some untested code path to expand the history repeat character to the full command, but
I haven't figured out why that doesn't work at the moment.
Completion functions return -1 to 'insert the completion character', but that isn't implemented
(even though we seem to activate this feature in LLDB sometimes).
All positive values have to match the number of results. This is obviously just redundant information
as the user can just look at the result list to get that information (which is what Xcode does).
* The result array that starts indexing at 1 is obviously unexpected. The first element of the array is
reserved for the common prefix of all completions (e.g. "foobar" and "footar" -> "foo"). The idea is
that we calculate this to make the life of the API caller easier, but obviously forcing people to have
1-based indices is not helpful (or even worse, forces them to manually copy the results to make it
0-based like Xcode has to do).
* The `WordComplete` mode indicates that LLDB should enter a space behind the completion. The
idea is that we let the top-level API know that we just provided a full completion. Interestingly we
`WordComplete` is just a single bool that somehow represents all N completions. And we always
provide full completions in LLDB, so in theory it should always be true.
The only use it currently serves is providing redundant information about whether we have a single
definitive completion or not (which we already know from the number of results we get).
This patch essentially removes `WordComplete` mode and makes the result array indexed from 0.
It also removes all return values from all internal completion functions. The only non-redundant information
they contain is about rewriting the current line (which is broken), so that functionality was moved
to the CompletionRequest API. So you can now do `addCompletion("blub", "description", CompletionMode::RewriteLine)`
to do the same.
For the SB API we emulate the old behaviour by making the array indexed from 1 again with the common
prefix at index 0. I didn't keep the special negative return codes as we either never sent them before (e.g. -2) or we
didn't even implement them in the Editline handler (e.g. -1).
I tried to keep this patch minimal and I'm aware we can probably now even further simplify a bunch of related code,
but I would prefer doing this in follow-up NFC commits
Reviewers: JDevlieghere
Reviewed By: JDevlieghere
Subscribers: arphaman, abidh, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D66536
llvm-svn: 369624
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Resolve the path in the target create output. This is nice when passing
relative paths to the lldb command line driver.
$ lldb ./binary
(lldb) target create "./binary"
Current executable set to '/absolute/path/to/binary' (x86_64).
This change only affects the target create output and does not change
the debugger's behavior. It doesn't resolve symbolic links so it won't
cause confusing when debugging something like clang++ that's symlinked
to clang.
Differential revision: https://reviews.llvm.org/D65611
llvm-svn: 368182
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After the recent refactorings the SymbolVendor passthrough no longer
serve any purpose. This patch removes those methods, and updates all
callsites to go to the symbol file directly -- in most cases that just
means calling GetSymbolFile()->foo() instead of
GetSymbolVendor()->foo().
llvm-svn: 368001
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Summary:
This patch removes the GetSymtab method from the SymbolVendor, which is
a no-op as it's implementation just forwards to the relevant SymbolFile.
Instead it creates a Module::GetSymtab, which calls the SymbolFile
method directly.
All callers have been updated to use the Module method directly instead
of a two phase GetSymbolVendor->GetSymtab search, which leads to reduced
intentation in a lot of deeply nested code.
Reviewers: clayborg, JDevlieghere, jingham
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D65569
llvm-svn: 367820
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Summary:
This is the next step in avoiding funneling all SymbolFile calls through
the SymbolVendor. Right now, it is just a convenience function, but it
allows us to update all calls to SymbolVendor functions to access the
SymbolFile directly. Once all call sites have been updated, we can
remove the GetSymbolVendor member function.
This patch just updates the calls to GetSymbolVendor, which were calling
it just so they could fetch the underlying symbol file. Other calls will
be done in follow-ups.
Reviewers: JDevlieghere, clayborg, jingham
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D65435
llvm-svn: 367664
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Reformat OptionEnumValueElement to make it easier to distinguish between
its fields. This also removes the need to disable clang-format for these
arrays.
Differential revision: https://reviews.llvm.org/D65489
llvm-svn: 367638
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Summary:
Right now our CommandOptions.inc only generates the initializer for the options list but
not the array declaration boilerplate around it. As the array definition is identical for all arrays,
we might as well also let the CommandOptions.inc generate it alongside the initializers.
This patch will also allow us to generate additional declarations related to that option list in
the future (e.g. a enum class representing the specific options which would make our
handling code less prone).
This patch also fixes a few option tables that didn't follow our naming style.
Reviewers: JDevlieghere
Reviewed By: JDevlieghere
Subscribers: abidh, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D65331
llvm-svn: 367186
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This patch replaces explicit calls to log::Printf with the new LLDB_LOGF
macro. The macro is similar to LLDB_LOG but supports printf-style format
strings, instead of formatv-style format strings.
So instead of writing:
if (log)
log->Printf("%s\n", str);
You'd write:
LLDB_LOG(log, "%s\n", str);
This change was done mechanically with the command below. I replaced the
spurious if-checks with vim, since I know how to do multi-line
replacements with it.
find . -type f -name '*.cpp' -exec \
sed -i '' -E 's/log->Printf\(/LLDB_LOGF\(log, /g' "{}" +
Differential revision: https://reviews.llvm.org/D65128
llvm-svn: 366936
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llvm-svn: 366561
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It seems having two Options.inc files in the same project is giving our
custom Xcode project a hard time. This patch renames the new Options.inc
to CommandOptions.inc to prevent this conflict.
llvm-svn: 366196
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Summary:
We currently have man large arrays containing initializers for our command options.
These tables are tricky maintain as we don't have any good place to check them for consistency and
it's also hard to read (`nullptr, {}, 0` is not very descriptive).
This patch fixes this by letting table gen generate those tables. This way we can have a more readable
syntax for this (especially for all the default arguments) and we can let TableCheck check them
for consistency (e.g. an option with an optional argument can't have `eArgTypeNone`, naming of flags', etc.).
Also refactoring the related data structures can now be done without changing the hundred of option initializers.
For example, this line:
```
{LLDB_OPT_SET_ALL, false, "hide-aliases", 'a', OptionParser::eNoArgument, nullptr, {}, 0, eArgTypeNone, "Hide aliases in the command list."},
```
becomes this:
```
def hide_aliases : Option<"hide-aliases", "a">, Desc<"Hide aliases in the command list.">;
```
For now I just moved a few initializers to the new format to demonstrate the change. I'll slowly migrate the other
option initializers tables in separate patches.
Reviewers: JDevlieghere, davide, sgraenitz
Reviewed By: JDevlieghere
Subscribers: jingham, xiaobai, labath, mgorny, abidh, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D64365
llvm-svn: 365908
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Summary:
Previous patch (r360409) introduced the "symbol file unwind plan"
concept, but that plan wasn't used for unwinding yet. With this patch,
we start to consider the new plan as a possible strategy for both
synchronous and asynchronous unwinding. I also add a test that asserts
that unwinding via breakpad STACK CFI info works end-to-end.
Reviewers: jasonmolenda, clayborg
Subscribers: lldb-commits, amccarth, markmentovai
Differential Revision: https://reviews.llvm.org/D61853
llvm-svn: 361618
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This change replaces built-in types that are implicitly converted to
booleans.
Differential revision: https://reviews.llvm.org/D62284
llvm-svn: 361580
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Summary:
some unwind formats are specific to a single symbol file and so it does
not make sense for their parsing code live in the general Symbol library
(as is the case with eh_frame for instance). This is the case for the
unwind information in breakpad files, but the same will probably be true
for PDB unwind info (once we are able to parse that).
This patch adds the ability to fetch an unwind plan provided by a symbol
file plugin, as discussed in the RFC at
<http://lists.llvm.org/pipermail/lldb-dev/2019-February/014703.html>.
I've kept the set of changes to a minimum, as there is no way to test
them until we have a symbol file which implements this API -- that is
comming in a follow-up patch, which will also implicitly test this
change.
The interesting part here is the introduction of the
"RegisterInfoResolver" interface. The reason for this is that breakpad
needs to be able to resolve register names (which are present as strings
in the file) into register enums so that it can construct the unwind
plan. This is normally done via the RegisterContext class, handing this
over to the SymbolFile plugin would mean that it has full access to the
debugged process, which is not something we want it to have. So instead,
I create a facade, which only provides the ability to query register
names, and hide the RegisterContext behind the facade.
Also note that this only adds the ability to dump the unwind plan
created by the symbol file plugin -- the plan is not used for unwinding
yet -- this will be added in a third patch, which will add additional
tests which makes sure the unwinding works as a whole.
Reviewers: jasonmolenda, clayborg
Subscribers: markmentovai, amccarth, lldb-commits
Differential Revision: https://reviews.llvm.org/D61732
llvm-svn: 360409
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In r359354 a GetDebugger() method was added to the CommandObject class,
so that we didn't have to go through the command interpreter to obtain
the script interpreter. This patch simplifies other call sites where
m_interpreter.GetDebugger() was used, and replaces them with a shorter
call to the new method.
llvm-svn: 359373
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Before a Debugger gets a Target, target settings are routed to a global set
of settings. Even without this, some part of the LLDB which exist independently
of the Debugger object (the Module cache, the Symbol vendors, ...) access
directly the global default store for those settings.
Of course, if you modify one of those global settings while they are being read,
bad things happen. We see this quite a bit with FileSpecList settings. In
particular, we see many cases where one debug session changes
target.exec-search-paths while another session starts up and it crashes when
one of those accesses invalid FileSpecs.
This patch addresses the specific FileSpecList issue by adding locking to
OptionValueFileSpecList and never returning by reference.
Reviewers: clayborg
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D60468
llvm-svn: 359028
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Summary:
This argument was added back in 2010 (r118882) to support the ability to unwind
from functions whose eh_frame entry does not cover the entire range of
the function.
However, due to the caching happening in FuncUnwinders, this solution is
very fragile. FuncUnwinders will cache the plan it got from eh_frame
regardless of the value of the current_offset, so our ability to unwind
from a given function depended what was the value of "current_offset" the
first time that this function was called.
Furthermore, since the "image show-unwind" command did not know what's
the right offset to pass, this created an unfortunate situation where
"image show-unwind" would show no valid plans for a function, even
though they were available and being used.
In this patch I implement the feature slightly differently. Instead of
giving just a base address to the eh_frame unwinder, I give it the
entire range we are interested in. Then, I change the unwinder to return
the first plan that covers (even partially) that range. This way even a
partial plan will be returned, regardless of the address in the function
where we are stopped at.
This solution is still not 100% correct, as it will not handle a
function which is covered by two independent fde entries. However, I
don't expect anybody will write this kind of functions, and this wasn't
handled by the previous implementation either. If this is ever needed in
the future. The eh_frame unwinder can be extended to return "composite"
unwind plans created by merging sevelar fde entries.
I also create a test which triggers this scenario. As doing this is
virtually impossible without hand-written assembly, the test only works
on x86 linux.
Reviewers: jasonmolenda, clayborg
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D60829
llvm-svn: 358964
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A lot of comments in LLDB are surrounded by an ASCII line to delimit the
begging and end of the comment.
Its use is not really consistent across the code base, sometimes the
lines are longer, sometimes they are shorter and sometimes they are
omitted. Furthermore, it looks kind of weird with the 80 column limit,
where the comment actually extends past the line, but not by much.
Furthermore, when /// is used for Doxygen comments, it looks
particularly odd. And when // is used, it incorrectly gives the
impression that it's actually a Doxygen comment.
I assume these lines were added to improve distinguishing between
comments and code. However, given that todays editors and IDEs do a
great job at highlighting comments, I think it's worth to drop this for
the sake of consistency. The alternative is fixing all the
inconsistencies, which would create a lot more churn.
Differential revision: https://reviews.llvm.org/D60508
llvm-svn: 358135
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Add a flag to control whether the ModulesDidLoad notification is
called when a module is added. If the notifications are disabled,
the caller must call ModulesDidLoad after adding all the new modules,
but postponing this notification until they're all batched up can
allow for better efficiency than notifying one-by-one.
Change the name of the ModuleList notifier functions that a subclass
can implement to start with 'Notify' to make it clear what they are.
Add a NotifyModulesRemoved.
Add header documentation for the changed/updated methods.
Added defaulted-value 'notify' argument to ModuleList Append,
AppendIfNeeded, and Remove because callers working with a local
ModuleList don't have an obvious idea of what notify means in this
context. When the ModuleList is a part of the Target class, the
notify behavior matters.
DynamicLoaderDarwin has been updated so that libraries being
added/removed are correctly batched up before notifications are
sent. Added the TestModuleLoadedNotifys.py test to run on
Darwin to test this.
<rdar://problem/48293064>
Differential Revision: https://reviews.llvm.org/D60172
llvm-svn: 357955
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Summary:
Within .lldbinit, regex commands can be structured as a list of substitutions over
multiple lines. It's possible that this is uninentional, but it works and has
benefits.
For example:
command regex <command-name>
s/pat1/repl1/
s/pat2/repl2/
...
I use this form of `command regex` in my `~/.lldbinit`, because it makes it
clearer to write and read compared to a single line definition, because
multiline substitutions don't need to be quoted, and are broken up one per line.
However, multiline definitions result in usage instructions being printed for
each use. The result is that every time I run `lldb`, I get a dozen or more
lines of noise. With this change, the instructions are only printed when
`command regex` is invoked interactively, or from a terminal, neither of which
are true when lldb is sourcing `~/.lldbinit`.
Reviewers: clayborg, jingham
Reviewed By: clayborg
Subscribers: jdoerfert, kastiglione, xiaobai, keith, lldb-commits
Differential Revision: https://reviews.llvm.org/D48752
llvm-svn: 355793
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When the debugger is run in sync mode, you need to
be able to tell whether a hijacked resume is for some
special purpose (like waiting for the SIGSTOP on attach)
or just to perform a synchronous resume. Target::Launch was doing
that wrong, and that caused stop-hooks on process launch
in source files to behave incorrectly.
<rdar://problem/48115661>
Differential Revision: https://reviews.llvm.org/D58727
llvm-svn: 355213
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Given that we have a target named Symbols, one wonders why a
file named Symbols.cpp is not in this target. To be clear,
the functions exposed from this file are really focused on
*locating* a symbol file on a given host, which is where the
ambiguity comes in. However, it makes more sense conceptually
to be in the Symbols target. While some of the specific places
to search for symbol files might change depending on the Host,
this is not inherently true in the same way that, for example,
"accessing the file system" or "starting threads" is
fundamentally dependent on the Host.
PDBs, for example, recently became a reality on non-Windows platforms,
and it's theoretically possible that DSYMs could become a thing on non
MacOSX platforms (maybe in a remote debugging scenario). Other types of
symbol files, such as DWO, DWP, etc have never been tied to any Host
platform anyway.
After this patch, there is only one remaining dependency from
Host to Target.
Differential Revision: https://reviews.llvm.org/D58730
llvm-svn: 355032
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llvm-svn: 354711
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They aren't designed to nest recursively, so this will prevent that.
Also add a --auto-continue flag, putting "continue" in the stop hook makes
the stop hooks fight one another in multi-threaded programs.
Also allow more than one -o options so you can make more complex stop hooks w/o
having to go into the editor.
<rdar://problem/48115661>
Differential Revision: https://reviews.llvm.org/D58394
llvm-svn: 354706
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Summary:
This is a preparatory step to enable adding extra unwind strategies by
symbol file plugins. This has been discussed on the lldb-dev mailing
list: <http://lists.llvm.org/pipermail/lldb-dev/2019-February/014703.html>.
Reviewers: jasonmolenda, clayborg, espindola
Subscribers: lemo, emaste, lldb-commits, arichardson
Differential Revision: https://reviews.llvm.org/D58129
llvm-svn: 354033
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The `ap` suffix is a remnant of lldb's former use of auto pointers,
before they got deprecated. Although all their uses were replaced by
unique pointers, some variables still carried the suffix.
In r353795 I removed another auto_ptr remnant, namely redundant calls to
::get for unique_pointers. Jim justly noted that this is a good
opportunity to clean up the variable names as well.
I went over all the changes to ensure my find-and-replace didn't have
any undesired side-effects. I hope I didn't miss any, but if you end up
at this commit doing a git blame on a weirdly named variable, please
know that the change was unintentional.
llvm-svn: 353912
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to reflect the new license.
We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.
Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.
llvm-svn: 351636
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a .debug_line test"
This reapplies r350802, which was reverted because of issues with
parsing posix-style paths on windows hosts (and vice-versa). These have
since been fixed in r351328, and lldb should now recognise the path
style used in a dwarf compile unit correctly.
llvm-svn: 351435
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This parameter was only ever used with the Module set, and
since a SymbolFile is tied to a module, the parameter turns
out to be entirely unnecessary. Furthermore, it doesn't make
a lot of sense to ask a caller to ask SymbolFile which is tied
to Module X to find types for Module Y, but that possibility
was open with the previous interface. By removing this
parameter from the API, it makes it harder to use incorrectly
as well as easier for an implementor to understand what it
needs to do.
llvm-svn: 351133
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.debug_line test"
This reverts commit r350802 because the test fails on windows. This
happens because we treat the paths as windows paths even though they
have linux path separators in the asm file. That results in wrong paths
being computed (\tmp\tmp\a.c instead of /tmp/a.c).
Reverting until I can figure out what to do with this.
llvm-svn: 350810
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.debug_line test
Summary:
The motivation for this is being able to write tests for the upcoming
breakpad line table parser, but this could be useful for testing the
low-level workings of any line table format. Or simply for viewing the
line table information with more detail (the brief format doesn't
include any of the flags for end_of_prologue and similar).
I've also removed the load_addresses argument from the
DumpCompileUnitLineTable function, as it wasn't being used anywhere.
Reviewers: clayborg, zturner
Subscribers: JDevlieghere, lldb-commits
Differential Revision: https://reviews.llvm.org/D56315
llvm-svn: 350802
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Summary:
This function was named such because in the case of MachO files, the
mach header is located at this address. However all (most?) usages of
this function were not interested in that fact, but the fact that this
address is used as the base address for expressing various relative
addresses in the object file.
For other object file formats, this name is not appropriate (and it's
probably the reason why this function was not implemented in these
classes). In the ELF case the ELF header will usually end up at this
address, but this is a result of the linker optimizing the file layout
and not a requirement of the spec. For COFF files, I believe the is no
header located at this address either.
Reviewers: clayborg, jasonmolenda, amccarth, lemo, stella.stamenova
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D55422
llvm-svn: 348849
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This patch removes the comments grouping header includes. They were
added after running IWYU over the LLDB codebase. However they add little
value, are often outdates and burdensome to maintain.
llvm-svn: 346626
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This is useful for investigating the clang ast as you reconstruct
it via by parsing debug info. It can also be used to write tests
against.
Differential Revision: https://reviews.llvm.org/D54072
llvm-svn: 346149
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This patch removes the logic for resolving paths out of FileSpec and
updates call sites to rely on the FileSystem class instead.
Differential revision: https://reviews.llvm.org/D53915
llvm-svn: 345890
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This patch removes the Exists method from FileSpec and updates its uses
with calls to the FileSystem.
Differential revision: https://reviews.llvm.org/D53845
llvm-svn: 345854
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This patch removes the GetPermissions and GetReadable methods from
FileSpec and updates its uses with calls to the FileSystem.
Differential revision: https://reviews.llvm.org/D53831
llvm-svn: 345843
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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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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 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:
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 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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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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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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