| Age | Commit message (Collapse) | Author |
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Often, we only care about the split-dwarf files that have failed to
load. This can be useful when diagnosing binaries with many separate
debug info files where only some have errors.
```
(lldb) help image dump separate-debug-info
List the separate debug info symbol files for one or more target modules.
Syntax: target modules dump separate-debug-info <cmd-options> [<filename> [<filename> [...]]]
Command Options Usage:
target modules dump separate-debug-info [-ej] [<filename> [<filename> [...]]]
-e ( --errors-only )
Filter to show only debug info files with errors.
-j ( --json )
Output the details in JSON format.
This command takes options and free-form arguments. If your arguments
resemble option specifiers (i.e., they start with a - or --), you must use
' -- ' between the end of the command options and the beginning of the
arguments.
'image' is an abbreviation for 'target modules'
```
I updated the following tests
```
# on Linux
bin/lldb-dotest -p TestDumpDwo
# on Mac
bin/lldb-dotest -p TestDumpOso
```
This change applies to both the table and JSON outputs.
---------
Co-authored-by: Tom Yang <toyang@fb.com>
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(not `bool`) (#69991)
[lldb] Part 2 of 2 - Refactor `CommandObject::DoExecute(...)` to return
`void` instead of ~~`bool`~~
Justifications:
- The code doesn't ultimately apply the `true`/`false` return values.
- The methods already pass around a `CommandReturnObject`, typically
with a `result` parameter.
- Each command return object already contains:
- A more precise status
- The error code(s) that apply to that status
Part 1 refactors the `CommandObject::Execute(...)` method.
- See
[https://github.com/llvm/llvm-project/pull/69989](https://github.com/llvm/llvm-project/pull/69989)
rdar://117378957
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due to 64d78d8b3cd09dff32c97fbefa56bcfc8b676406 that used side effects
in assert()
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Add a new command
```
target modules dump separate-debug-info [-j] [<filename> [<filename> [...]]]
```
or
```
image dump separate-debug-info [-j] [<filename> [<filename> [...]]]
```
(since `image` is an alias for `target modules`).
This lists the separate debug info files and their current status
(loaded or not loaded) for the specified modules. This diff implements
this command for mach-O files with OSO and ELF files with dwo.
Example dwo:
```
(lldb) image dump separate-debug-info
Symbol file: /home/toyang/workspace/dwo-scratch/a.out
Type: "dwo"
Dwo ID Err Dwo Path
------------------ --- -----------------------------------------
0x9a429da5abb6faae /home/toyang/workspace/scratch-dwo/a-main.dwo
0xbcc129959e76ff33 /home/toyang/workspace/scratch-dwo/a-foo.dwo
(lldb) image dump separate-debug-info -j
[
{
"separate-debug-info-files": [
{
"comp_dir": "/home/toyang/workspace/dwo-scratch",
"dwo_id": 11115620165179865774,
"dwo_name": "a-main.dwo",
"loaded": true,
"resolved_dwo_path": "/home/toyang/workspace/dwo-scratch/a-main.dwo"
},
{
"comp_dir": "/home/toyang/workspace/dwo-scratch",
"dwo_id": 13601198072221073203,
"dwo_name": "a-foo.dwo",
"loaded": true,
"resolved_dwo_path": "/home/toyang/workspace/dwo-scratch/a-foo.dwo"
}
],
"symfile": "/home/toyang/workspace/dwo-scratch/a.out",
"type": "dwo"
}
]
```
Example dwo with missing dwo:
```
(lldb) image dump separate-debug-info
Symbol file: /home/toyang/workspace/dwo-scratch/a.out
Type: "dwo"
Dwo ID Err Dwo Path
------------------ --- -----------------------------------------
0x9a429da5abb6faae E unable to locate .dwo debug file "/home/toyang/workspace/scratch-dwo/b.out-main.dwo" for skeleton DIE 0x0000000000000014
0xbcc129959e76ff33 E unable to locate .dwo debug file "/home/toyang/workspace/scratch-dwo/b.out-foo.dwo" for skeleton DIE 0x000000000000003c
(lldb) image dump separate-debug-info -j
[
{
"separate-debug-info-files": [
{
"comp_dir": "/home/toyang/workspace/dwo-scratch",
"dwo_id": 11115620165179865774,
"dwo_name": "a-main.dwo",
"error": "unable to locate .dwo debug file \"/home/toyang/workspace/dwo-scratch/a-main.dwo\" for skeleton DIE 0x0000000000000014",
"loaded": false
},
{
"comp_dir": "/home/toyang/workspace/dwo-scratch",
"dwo_id": 13601198072221073203,
"dwo_name": "a-foo.dwo",
"error": "unable to locate .dwo debug file \"/home/toyang/workspace/dwo-scratch/a-foo.dwo\" for skeleton DIE 0x000000000000003c",
"loaded": false
}
],
"symfile": "/home/toyang/workspace/dwo-scratch/a.out",
"type": "dwo"
}
]
```
Example output with dwp:
```
(lldb) image dump separate-debug-info
Symbol file: /home/toyang/workspace/dwo-scratch/a.out
Type: "dwo"
Dwo ID Err Dwo Path
------------------ --- -----------------------------------------
0x9a429da5abb6faae /home/toyang/workspace/dwo-scratch/a.out.dwp(a-main.dwo)
0xbcc129959e76ff33 /home/toyang/workspace/dwo-scratch/a.out.dwp(a-foo.dwo)
(lldb) image dump separate-debug-info -j
[
{
"separate-debug-info-files": [
{
"comp_dir": "/home/toyang/workspace/dwo-scratch",
"dwo_id": 11115620165179865774,
"dwo_name": "a-main.dwo",
"loaded": true,
"resolved_dwo_path": "/home/toyang/workspace/dwo-scratch/a.out.dwp"
},
{
"comp_dir": "/home/toyang/workspace/dwo-scratch",
"dwo_id": 13601198072221073203,
"dwo_name": "a-foo.dwo",
"loaded": true,
"resolved_dwo_path": "/home/toyang/workspace/dwo-scratch/a.out.dwp"
}
],
"symfile": "/home/toyang/workspace/dwo-scratch/a.out",
"type": "dwo"
}
]
```
Example oso on my Mac:
```
(lldb) image dump separate-debug-info
Symbol file: /Users/toyang/workspace/scratch/a.out
Type: "oso"
Mod Time Err Oso Path
------------------ --- ---------------------
0x0000000064e64868 /Users/toyang/workspace/scratch/foo.a(foo.o)
0x0000000064e64868 /Users/toyang/workspace/scratch/foo.a(main.o)
(lldb) image dump separate-debug-info -j
[
{
"separate-debug-info-files": [
{
"loaded": true,
"oso_mod_time": 1692813416,
"oso_path": "/Users/toyang/workspace/scratch/foo.a(foo.o)",
"so_file": "/Users/toyang/workspace/scratch/foo.cpp"
},
{
"loaded": true,
"oso_mod_time": 1692813416,
"oso_path": "/Users/toyang/workspace/scratch/foo.a(main.o)",
"so_file": "/Users/toyang/workspace/scratch/main.cpp"
}
],
"symfile": "/Users/toyang/workspace/scratch/a.out",
"type": "oso"
}
]
```
Test Plan:
Tested on Mac OS and Linux.
```
lldb-dotest -p TestDumpDwo
lldb-dotest -p TestDumpOso
```
---------
Co-authored-by: Tom Yang <toyang@fb.com>
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This already applies to enable and disable, delete was missing
a check.
This cannot be tested properly with the current completion tests,
but it will be when I make them more strict in a follow up patch.
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reference
These methods all take a `Stream *` to get feedback about what's going
on. By default, it's a nullptr, but we always feed it with a valid
pointer. It would therefore make more sense to have this take a
reference.
Differential Revision: https://reviews.llvm.org/D154883
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Also, make it possible for new Targets which haven't been added to
the TargetList yet to check for interruption, and add a few more
places in building modules where we can check for interruption.
Differential Revision: https://reviews.llvm.org/D154542
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Move to `DumpAddress` in c4a8a76048e91baecb5746b80b9733e4af299937.
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instead of pointer
We always assume that this is valid anyway, might as well take a
reference.
Differential Revision: https://reviews.llvm.org/D153917
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A command to dump the Target's SectionLoadList, to debug
possible issues with the table.
Differential Revision: https://reviews.llvm.org/D154169
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Add two new source subcommands: source cache dump and source cache
clear. As the name implies the first one dumps the source cache while
the later clears the cache.
This patch was motivated by a handful of (internal) bug reports related
to sources not being available. Right now those issues can be hard to
diagnose. The new commands give users, as well as us as developers, more
insight into and control over the source cache.
Differential revision: https://reviews.llvm.org/D153685
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We always assume the Stream pointer is valid, might as well be taking a
reference instead.
Differential Revision: https://reviews.llvm.org/D153710
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This patch should allow the user to set specific auto-completion type
for their custom commands.
To do so, we had to hoist the `CompletionType` enum so the user can
access it and add a new completion type flag to the CommandScriptAdd
Command Object.
So now, the user can specify which completion type will be used with
their custom command, when they register it.
This also makes the `crashlog` custom commands use disk-file completion
type, to browse through the user file system and load the report.
Differential Revision: https://reviews.llvm.org/D152011
Signed-off-by: Med Ismail Bennani <ismail@bennani.ma>
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This patch add the ability for the user to set a label for a target.
This can be very useful when debugging targets with the same executables
in the same session.
Labels can be set either at the target creation in the command
interpreter or at any time using the SBAPI.
Target labels show up in the `target list` output, following the target
index, and they also allow the user to switch targets using them.
rdar://105016191
Differential Revision: https://reviews.llvm.org/D151859
Signed-off-by: Med Ismail Bennani <ismail@bennani.ma>
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Re-lands 04aa943be8ed5c03092e2a90112ac638360ec253 with modifications
to fix tests.
I originally reverted this because it caused a test to fail on Linux.
The problem was that I inverted a condition on accident.
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This reverts commit 04aa943be8ed5c03092e2a90112ac638360ec253.
This broke the debian buildbot and I'm not sure why. Reverting so I can
investigate.
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There are many situations where we'll iterate over a SymbolContextList
with the pattern:
```
SymbolContextList sc_list;
// Fill in sc_list here
for (auto i = 0; i < sc_list.GetSize(); i++) {
SymbolContext sc;
sc_list.GetSymbolAtContext(i, sc);
// Do work with sc
}
```
Adding an iterator to iterate over the instances directly means we don't
have to do bounds checking or create a copy of every element of the
SymbolContextList.
Differential Revision: https://reviews.llvm.org/D149900
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FileSpec::GetFileNameExtension returns a StringRef. In some cases we
are calling it and then storing the result in a local. To prevent
cases where we store the StringRef, mutate the Filespec, and then try to
use the stored StringRef afterwards, I've audited the callsites and made
adjustments to mitigate: Either marking the FileSpec it comes from as
const (to avoid mutations) or by not storing the StringRef in a local if
it makes sense not to.
Differential Revision: https://reviews.llvm.org/D149671
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These don't really need to be in ConstStrings. It's nice that comparing
ConstStrings is fast (just a pointer comparison) but the cost of
creating the ConstString usually already includes the cost of doing a
StringRef comparison anyway, so this is just extra work and extra memory
consumption for basically no benefit.
Differential Revision: https://reviews.llvm.org/D149300
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Since each `DumpModuleInfoAction` can now contain a pointer to a
`raw_ostream`, saving there a poiter that owned by a local `unique_ptr`
may cause use-after-free. Clarify ownership and save a `shared_ptr`
inside of `DumpModuleInfoAction` instead.
Found by static analyzer.
Reviewed By: tahonermann, aaron.ballman
Differential Revision: https://reviews.llvm.org/D146412
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Command Interpreter mechanism.
Differential Revision: https://reviews.llvm.org/D145136
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When using --name, due to a missing newline, multiple symbol results
were not correctly printed:
```
(lldb) image lookup -r -n "As<.*"
2 matches found in <...>/tbi_lisp:
Address: tbi_lisp<...>
Summary: tbi_lisp<...> at Symbol.cpp:75 Address: tbi_lisp<...>
Summary: tbi_lisp<...> at Symbol.cpp:82
```
It should be:
```
(lldb) image lookup -r -n "As<.*"
2 matches found in /home/david.spickett/tbi_lisp/tbi_lisp:
Address: tbi_lisp<...>
Summary: tbi_lisp<...> at Symbol.cpp:75
Address: tbi_lisp<...>
Summary: tbi_lisp<...> at Symbol.cpp:82
```
With Address/Summary on separate lines.
Reviewed By: clayborg, labath
Differential Revision: https://reviews.llvm.org/D143564
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This is a follow-up to https://reviews.llvm.org/D140896, split into
several parts as it touches a lot of files.
Differential Revision: https://reviews.llvm.org/D141298
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This reverts commit fbaf48be0ff6fb24b9aa8fe9c2284fe88a8798dd.
This has broken all LLDB buildbots:
https://lab.llvm.org/buildbot/#/builders/68/builds/44990
https://lab.llvm.org/buildbot/#/builders/96/builds/33160
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Removing .c_str() has a semantics difference, but the use scenarios
likely do not matter as we don't have NUL in the strings.
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When a process gets restarted TypeSystem objects associated with it
may get deleted, and any CompilerType objects holding on to a
reference to that type system are a use-after-free in waiting. Because
of the SBAPI, we don't have tight control over where CompilerTypes go
and when they are used. This is particularly a problem in the Swift
plugin, where the scratch TypeSystem can be restarted while the
process is still running. The Swift plugin has a lock to prevent
abuse, but where there's a lock there can be bugs.
This patch changes CompilerType to store a std::weak_ptr<TypeSystem>.
Most of the std::weak_ptr<TypeSystem>* uglyness is hidden by
introducing a wrapper class CompilerType::WrappedTypeSystem that has a
dyn_cast_or_null() method. The only sites that need to know about the
weak pointer implementation detail are the ones that deal with
creating TypeSystems.
rdar://101505232
Differential Revision: https://reviews.llvm.org/D136650
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Or else multiple entries end up overlapping on the same line.
Reviewed By: DavidSpickett
Differential Revision: https://reviews.llvm.org/D135827
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When running `target module lookup` command, show the name of absolute
symbols. Also fix indentation issue after printing an absolute symbol.
Reviewed By: clayborg, DavidSpickett
Differential Revision: https://reviews.llvm.org/D134516
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This adds a line break between each result address in the output of the
lldb command `target modules lookup`. Before this change, a new address
result will be printed on the same line as the summary of the last
result, making the output difficult to view.
Also adds a test for this command.
Reviewed By: labath
Differential Revision: https://reviews.llvm.org/D134111
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Symbols that have the section index of SHN_ABS were previously creating extra top level sections that contained the value of the symbol as if the symbol's value was an address. As far as I can tell, these symbol's values are not addresses, even if they do have a size. To make matters worse, adding these extra sections can stop address lookups from succeeding if the symbol's value + size overlaps with an existing section as these sections get mapped into memory when the image is loaded by the dynamic loader. This can cause stack frames to appear empty as the address lookup fails completely.
This patch:
- doesn't create a section for any SHN_ABS symbols
- makes symbols that are absolute have values that are not addresses
- add accessors to SBSymbol to get the value and size of a symbol as raw integers. Prevoiusly there was no way to access a symbol's value from a SBSymbol because the only accessors were:
SBAddress SBSymbol::GetStartAddress();
SBAddress SBSymbol::GetEndAddress();
and these accessors would return an invalid SBAddress if the symbol's value wasn't an address
- Adds a test to ensure no ".absolute.<symbol-name>" sections are created
- Adds a test to test the new SBSymbol APIs
Differential Revision: https://reviews.llvm.org/D131705
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caching of resolved/absolute.
Resubmission of https://reviews.llvm.org/D130309 with the 2 patches that fixed the linux buildbot, and new windows fixes.
The FileSpec APIs allow users to modify instance variables directly by getting a non const reference to the directory and filename instance variables. This makes it impossible to control all of the times the FileSpec object is modified so we can clear cached member variables like m_resolved and with an upcoming patch caching if the file is relative or absolute. This patch modifies the APIs of FileSpec so no one can modify the directory or filename instance variables directly by adding set accessors and by removing the get accessors that are non const.
Many clients were using FileSpec::GetCString(...) which returned a unique C string from a ConstString'ified version of the result of GetPath() which returned a std::string. This caused many locations to use this convenient function incorrectly and could cause many strings to be added to the constant string pool that didn't need to. Most clients were converted to using FileSpec::GetPath().c_str() when possible. Other clients were modified to use the newly renamed version of this function which returns an actualy ConstString:
ConstString FileSpec::GetPathAsConstString(bool denormalize = true) const;
This avoids the issue where people were getting an already uniqued "const char *" that came from a ConstString only to put the "const char *" back into a "ConstString" object. By returning the ConstString instead of a "const char *" clients can be more efficient with the result.
The patch:
- Removes the non const GetDirectory() and GetFilename() get accessors
- Adds set accessors to replace the above functions: SetDirectory() and SetFilename().
- Adds ClearDirectory() and ClearFilename() to replace usage of the FileSpec::GetDirectory().Clear()/FileSpec::GetFilename().Clear() call sites
- Fixed all incorrect usage of FileSpec::GetCString() to use FileSpec::GetPath().c_str() where appropriate, and updated other call sites that wanted a ConstString to use the newly returned ConstString appropriately and efficiently.
Differential Revision: https://reviews.llvm.org/D130549
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adding caching of resolved/absolute." and follow-ups
This reverts commit 9429b67b8e300e638d7828bbcb95585f85c4df4d.
It broke the build on Windows, see comments on https://reviews.llvm.org/D130309
It also reverts these follow-ups:
Revert "Fix buildbot breakage after https://reviews.llvm.org/D130309."
This reverts commit f959d815f4637890ebbacca379f1c38ab47e4e14.
Revert "Fix buildbot breakage after https://reviews.llvm.org/D130309."
This reverts commit 0bbce7a4c2d2bff622bdadd4323f93f5d90e6d24.
Revert "Cache the value for absolute path in FileSpec."
This reverts commit dabe877248b85b34878e75d5510339325ee087d0.
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caching of resolved/absolute.
The FileSpect APIs allow users to modify instance variables directly by getting a non const reference to the directory and filename instance variables. This makes it impossibly to control all of the times the FileSpec object is modified so we can clear the cache. This patch modifies the APIs of FileSpec so no one can modify the directory or filename directly by adding set accessors and by removing the get accessors that are non const.
Many clients were using FileSpec::GetCString(...) which returned a unique C string from a ConstString'ified version of the result of GetPath() which returned a std::string. This caused many locations to use this convenient function incorrectly and could cause many strings to be added to the constant string pool that didn't need to. Most clients were converted to using FileSpec::GetPath().c_str() when possible. Other clients were modified to use the newly renamed version of this function which returns an actualy ConstString:
ConstString FileSpec::GetPathAsConstString(bool denormalize = true) const;
This avoids the issue where people were getting an already uniqued "const char *" that came from a ConstString only to put the "const char *" back into a "ConstString" object. By returning the ConstString instead of a "const char *" clients can be more efficient with the result.
The patch:
- Removes the non const GetDirectory() and GetFilename() get accessors
- Adds set accessors to replace the above functions: SetDirectory() and SetFilename().
- Adds ClearDirectory() and ClearFilename() to replace usage of the FileSpec::GetDirectory().Clear()/FileSpec::GetFilename().Clear() call sites
- Fixed all incorrect usage of FileSpec::GetCString() to use FileSpec::GetPath().c_str() where appropriate, and updated other call sites that wanted a ConstString to use the newly returned ConstString appropriately and efficiently.
Differential Revision: https://reviews.llvm.org/D130309
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Improve LLDB reliability by fixing the following "uninitialized variables" static code inspection warnings from
scan.coverity.com:
1094796 1095721 1095728 1095737 1095741
1095756 1095779 1095789 1095805 1214552
1229457 1232475 1274006 1274010 1293427
1364800 1364802 1364804 1364812 1364816
1374902 1374909 1384975 1399312 1420451
1431704 1454230 1454554 1454615 1454579
1454594 1454832 1457759 1458696 1461909
1467658 1487814 1487830 1487845
Differential Revision: https://reviews.llvm.org/D130098
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Refactor the command option enum values and the command argument table
to connect the two. This has two benefits:
- We guarantee that two options that use the same argument type have
the same accepted values.
- We can print the enum values and their description in the help
output. (D129707)
Differential revision: https://reviews.llvm.org/D129703
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Add `pcm-info` to the `target module dump` subcommands.
This dump command shows information about clang .pcm files. This command
effectively runs `clang -module-file-info` and produces identical output.
The .pcm file format is tightly coupled to the clang version. The clang
embedded in lldb is not guaranteed to match the version of the clang executable
available on the local system.
There have been times when I've needed to view the details about a .pcm file
produced by lldb's embedded clang, but because the clang executable was a
slightly different version, the `-module-file-info` invocation failed. With
this command, users can inspect .pcm files generated by lldb too.
Differential Revision: https://reviews.llvm.org/D129456
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This is currently being done in an ad hoc way, and so for some
commands it isn't being checked. We have the info to make this check,
since commands are supposed to add their arguments to the m_arguments
field of the CommandObject. This change uses that info to check whether
the command received arguments in error.
A handful of commands weren't defining their argument types, I also had
to fix them. And a bunch of commands were checking for arguments by
hand, so I removed those checks in favor of the CommandObject one. That
also meant I had to change some tests that were checking for the ad hoc
error outputs.
Differential Revision: https://reviews.llvm.org/D128453
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This fixes an issue that, when you start lldb or use `target create`
with a program name which is on $PATH, or not specify the .exe suffix of
a program in the working directory on Windows, you get a confusing
error, for example:
(lldb) target create notepad
error: 'C:\WINDOWS\SYSTEM32\notepad.exe' doesn't contain any 'host'
platform architectures: i686, x86_64, i386, i386
Fixes https://github.com/mstorsjo/llvm-mingw/issues/265
Reviewed By: DavidSpickett
Differential Revision: https://reviews.llvm.org/D127436
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Register positional argument details in `CommandObjectTargetModulesList`.
I recently learned that `image list` takes a module name, but the help info
does not indicate this. With this change, `help image list` will show that it
accepts zero or more module names.
This makes it easier to get info about specific modules, without having to
find/grep through the full image list.
Reviewed By: DavidSpickett
Differential Revision: https://reviews.llvm.org/D125154
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Nowhere in lldb do we call this with a null pointer.
If we did, the first line of the function would fault anyway.
Reviewed By: JDevlieghere
Differential Revision: https://reviews.llvm.org/D125218
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a debug session with only a remote path to the file you are debugging
using the SB API's. This patch makes it possible to do this using
target create --remote-file <some_path> without supplying a local file
as well.
Prior to this change we errored out saying that we haven't implemented
copying the binary back from the remote. I didn't implement the copy
back (in the case I'm interested in - iOS debugging - we don't
actually have a way for lldb to do that). This patch doesn't impede
doing that, I just didn't need it. I think for some object file
formats debugging w/o the binary file is hard because of what doesn't
get mapped in. I didn't try to arbitrate that, I'm assuming anybody
who has to do this knows what they are going to get.
If there's a connected platform that can check that the remote file
exists, it will do so, otherwise we trust the user's input - if it
isn't there the process launch is going to fail with no-such-file so
it will be pretty clear what went wrong.
Differential Revision: https://reviews.llvm.org/D124947
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This adds a setting (`target.max-children-depth`) that will provide a default value for the `--depth` flag used by `expression` and `frame variable`.
The new setting uses the same default that's currently fixed in source: `UINT32_MAX`.
This provides two purposes:
1. Allowing downstream forks to provide a customized default.
2. Allowing users to set their own default.
Following `target.max-children-count`, a warning is emitted when the max depth is reached. The warning lets users know which flags or settings they can customize. This warning is shown only when the limit is the default value.
rdar://87466495
Differential Revision: https://reviews.llvm.org/D123954
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Show the user the DBGError (if available) when dsymForUUID fails.
rdar://90949180
Differential revision: https://reviews.llvm.org/D123743
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Applied modernize-use-equals-default clang-tidy check over LLDB.
This check is already present in the lldb/.clang-tidy config.
Differential Revision: https://reviews.llvm.org/D121844
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Change enumaration to enumeration in code handling LLDB help output.
Reviewed By: labath
Differential Revision: https://reviews.llvm.org/D121800
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This allows `image lookup -a ... -v` to print variables only if the given
address is covered by the valid ranges of the variables. Since variables created
in dwarf plugin always has empty scope range, print the variable if it has
empty scope.
Differential Revision: https://reviews.llvm.org/D119963
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This patch changes the return value of Platform::GetName() to a
StringRef, and uses the opportunity (compile errors) to change some
callsites to use GetPluginName() instead. The two methods still remain
hardwired to return the same thing, but this will change once the ideas
in
<https://discourse.llvm.org/t/multiple-platforms-with-the-same-name/59594>
are implemented.
Differential Revision: https://reviews.llvm.org/D119146
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Most of our code was including Log.h even though that is not where the
"lldb" log channel is defined (Log.h defines the generic logging
infrastructure). This worked because Log.h included Logging.h, even
though it should.
After the recent refactor, it became impossible the two files include
each other in this direction (the opposite inclusion is needed), so this
patch removes the workaround that was put in place and cleans up all
files to include the right thing. It also renames the file to LLDBLog to
better reflect its purpose.
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