Commit Graph

14981 Commits

Author SHA1 Message Date
Jonas Devlieghere 1ab9a2906e [lldb] Fix C2360: initialization of 'identifier' is skipped by 'case' label
Make sure that every case has its own lexical block.
2021-11-05 23:09:35 -07:00
Jonas Devlieghere cd7a2bf94b [lldb] Don't set the OS for ARMGetSupportedArchitectureAtIndex
Don't set the OS when computing supported architectures in
PlatformDarwin::ARMGetSupportedArchitectureAtIndex.

Differential revision: https://reviews.llvm.org/D113159
2021-11-05 22:52:28 -07:00
Jonas Devlieghere 05fbe75890 [lldb] Remove nested switches from ARMGetSupportedArchitectureAtIndex (NFC)
Remove the nested switches from the ARMGetSupportedArchitectureAtIndex
implementation.

Differential revision: https://reviews.llvm.org/D113155
2021-11-05 21:12:00 -07:00
Jonas Devlieghere 6d48e2505c [lldb] Use std::string instead of llvm::Twine in GDBRemoteCommunicationClient
From the documentation:

  A Twine is not intended for use directly and should not be stored, its
  implementation relies on the ability to store pointers to temporary
  stack objects which may be deallocated at the end of a statement.
  Twines should only be used accepted as const references in arguments,
  when an API wishes to accept possibly-concatenated strings.

rdar://84799118

Differential revision: https://reviews.llvm.org/D113314
2021-11-05 13:19:00 -07:00
Jonas Devlieghere 10eb32f45d [lldb] Improve 'lang objc tagged-pointer info' command
Don't try to get a class descriptor for a pointer that doesn't look like
a tagged pointer. Also print addresses as fixed-width hex and update the
test.
2021-11-05 13:19:00 -07:00
Martin Storsjö a2c9cf4c76 [lldb] Use is_style_posix() for path style checks
Since a8b54834a1, there are two
distinct Windows path styles, `windows_backslash` (with the old
`windows` being an alias for it) and `windows_slash`.
4e4883e1f3 added helpers for
inspecting path styles.

The newly added windows_slash path style doesn't end up used in
LLDB yet anyway, as LLDB is quite decoupled from most of
llvm::sys::path and uses its own FileSpec class. To take it in
use, it could be hooked up in `FileSpec::Style::GetNativeStyle`
(in lldb/source/Utility/FileSpec.cpp) just like in the `real_style`
function in llvm/lib/Support/Path.cpp in
df0ba47c36.

It is not currently clear whether there's a real need for using
the Windows path style with forward slashes in LLDB (if there's any
other applications interacting with it, expecting that style), and
what other changes in LLDB are needed for that to work, but this
at least makes some of the checks more ready for the new style,
simplifying code a bit.

Differential Revision: https://reviews.llvm.org/D113255
2021-11-05 21:50:45 +02:00
Raphael Isemann f6b7bcc64a [lldb][NFC] StringRef-ify name param in CreateClassTemplateDecl 2021-11-04 15:28:02 +01:00
Raphael Isemann 7323d07483 [lldb][NFC] Remove a bunch of unnecessary nullptr checks
Those nullptr checks are after we already accessed the pointer.

Reviewed By: labath

Differential Revision: https://reviews.llvm.org/D113175
2021-11-04 15:21:03 +01:00
Raphael Isemann b738a69ab8 [lldb][NFC] StringRef-ify the name parameter in CreateEnumerationType
Reviewed By: labath

Differential Revision: https://reviews.llvm.org/D113176
2021-11-04 14:49:16 +01:00
Muhammad Omair Javaid b595137fe1 [LLDB] Fix Cpsr size for WoA64 target
CPSR on Arm64 is 4 bytes in size but windows on Arm implementation is trying to read/write 8 bytes against a byte register causing LLDB unit tests failures.

Ref: https://docs.microsoft.com/en-us/windows/win32/api/winnt/ns-winnt-arm64_nt_context

Reviewed By: mstorsjo

Differential Revision: https://reviews.llvm.org/D112471
2021-11-04 17:43:31 +05:00
Jonas Devlieghere f9e6be5cc1 [lldb] Update tagged pointer command output and test.
- Use formatv to print the addresses.
 - Add check for 0x0 which is treated as an invalid address.
 - Use a an address that's less likely to be interpreted as a real
   tagged pointer.
2021-11-03 15:04:36 -07:00
David Spickett fac3f20de5 Reland "[lldb] Remove non address bits when looking up memory regions"
This reverts commit 5fbcf67734.

ProcessDebugger is used in ProcessWindows and NativeProcessWindows.
I thought I was simplifying things by renaming to DoGetMemoryRegionInfo
in ProcessDebugger but the Native process side expects "GetMemoryRegionInfo".

Follow the pattern that WriteMemory uses. So:
* ProcessWindows::DoGetMemoryRegioninfo calls ProcessDebugger::GetMemoryRegionInfo
* NativeProcessWindows::GetMemoryRegionInfo does the same
2021-11-03 13:56:51 +00:00
David Spickett 5fbcf67734 Revert "[lldb] Remove non address bits when looking up memory regions"
This reverts commit 6f5ce43b43 due to
build failure on Windows.
2021-11-03 13:27:41 +00:00
Pavel Labath 30f922741a [lldb] Remove ConstString from plugin names in PluginManager innards
This completes de-constification of plugin names.
2021-11-03 13:14:21 +01:00
David Spickett 6f5ce43b43 [lldb] Remove non address bits when looking up memory regions
On AArch64 we have various things using the non address bits
of pointers. This means when you lookup their containing region
you won't find it if you don't remove them.

This changes Process GetMemoryRegionInfo to a non virtual method
that uses the current ABI plugin to remove those bits. Then it
calls DoGetMemoryRegionInfo.

That function does the actual work and is virtual to be overriden
by Process implementations.

A test case is added that runs on AArch64 Linux using the top
byte ignore feature.

Reviewed By: omjavaid

Differential Revision: https://reviews.llvm.org/D102757
2021-11-03 11:10:42 +00:00
Jonas Devlieghere 50b40b0518 [lldb] Improve error reporting in `lang objc tagged-pointer info`
Improve error handling for the lang objc tagged-pointer info. Rather
than failing silently, report an error if we couldn't convert an
argument to an address or resolve the class descriptor.

  (lldb) lang objc tagged-pointer info 0xbb6404c47a587764
  error: could not get class descriptor for 0xbb6404c47a587764

  (lldb) lang objc tagged-pointer info n1
  error: could not convert 'n1' to a valid address

Differential revision: https://reviews.llvm.org/D112945
2021-11-02 14:25:42 -07:00
Pavel Labath adf5e9c9b6 [lldb] Remove ConstString from TypeSystem and REPL plugin names 2021-11-02 16:13:52 +01:00
Benjamin Kramer 48677f58b0 [lldb] Unbreak the macOS build after dfd499a61c 2021-11-02 09:47:44 +01:00
Xu Jun dfd499a61c [lldb][NFC] avoid unnecessary roundtrips between different string types
The amount of roundtrips between StringRefs, ConstStrings and std::strings is
getting a bit out of hand, this patch avoid the unnecessary roundtrips.

Reviewed By: wallace, aprantl

Differential Revision: https://reviews.llvm.org/D112863
2021-11-01 22:15:01 -07:00
Xu Jun fe19ae352c normalize file path when searching the source map
The key stored in the source map is a normalized path string with host's
path style, so it is also necessary to normalize the file path during
searching the map

Reviewed By: wallace, aprantl

Differential Revision: https://reviews.llvm.org/D112439
2021-11-01 22:13:55 -07:00
Quinn Pham 68bb4e1648 [lldb][NFC] Inclusive Language: Replace master with main
[NFC] This patch fixes a URL within a git repo whose master branch was renamed
to main.
2021-11-01 12:25:41 -05:00
Danil Stefaniuc 82ed106567 [formatters] Add a libstdcpp formatter for multiset and unify tests across stdlibs
This diff adds a data formatter for libstdcpp's multiset. Besides, it improves and unifies the tests for multiset for libcxx and libstdcpp for maintainability.

Reviewed By: wallace

Differential Revision: https://reviews.llvm.org/D112785
2021-10-30 15:07:23 -07:00
Danil Stefaniuc f869e0be44 [formatters] Add a libstdcpp formatter for multimap and unify modify tests across stdlibs
This diff adds a data formatter for libstdcpp's multimap. Besides, it improves and unifies the tests for multimap for libcxx and libstdcpp for maintainability.

Reviewed By: wallace

Differential Revision: https://reviews.llvm.org/D112752
2021-10-30 12:53:32 -07:00
Raphael Isemann 4cf9d1e449 [lldb][NFC] Modernize for-loops in ModuleList
Reviewed By: mib

Differential Revision: https://reviews.llvm.org/D112379
2021-10-30 13:40:58 +02:00
Raphael Isemann 85bcc1eb2f [lldb] Make SBType::IsTypeComplete more consistent by forcing the loading of definitions
Currently calling SBType::IsTypeComplete returns true for record types if and
only if the underlying record in our internal Clang AST has a definition.

The function however doesn't actually force the loading of any external
definition from debug info, so it currently can return false even if the type is
actually defined in a program's debug info but LLDB hasn't lazily created the
definition yet.

This patch changes the behaviour to always load the definition first so that
IsTypeComplete now consistently returns true if there is a definition in the
module/target.

The motivation for this patch is twofold:

* The API is now arguably more useful for the user which don't know or care
about the internal lazy loading mechanism of LLDB.

* With D101950 there is no longer a good way to ask a Decl for a definition
without automatically pulling in a definition from the ExternalASTSource. The
current behaviour doesn't seem useful enough to justify the necessary
workarounds to preserve it for a time after D101950.

Note that there was a test that used this API to test lazy loading of debug info
but that has been replaced with TestLazyLoading by now (which just dumps the
internal Clang AST state instead).

Reviewed By: aprantl

Differential Revision: https://reviews.llvm.org/D112615
2021-10-30 13:28:27 +02:00
Raphael Isemann e2ede1715d [lldb] Update field offset/sizes when encountering artificial members such as vtable pointers
`DWARFASTParserClang::ParseSingleMember` turns DWARF DIEs that describe
struct/class members into their respective Clang representation (e.g.,
clang::FieldDecl). It also updates a record of where the last field
started/ended so that we can speculatively fill any holes between a field and a
bitfield with unnamed bitfield padding.

Right now we are completely ignoring 'artificial' members when parsing the DWARF
of a struct/class. The only artificial member that seems to be emitted in
practice for C/C++ seems to be the vtable pointer.

By completely skipping both the Clang AST node creation and the updating of the
last-field record, we essentially leave a hole in our layout with the size of
our artificial member. If the next member is a bitfield we then speculatively
fill the hole with an unnamed bitfield. During CodeGen Clang inserts an
artificial vtable pointer into the layout again which now occupies the same
offset as the unnamed bitfield. This later brings down Clang's
`CGRecordLowering::insertPadding` when it checks that none of the fields of the
generated record layout overlap.

Note that this is not a Clang bug. We explicitly set the offset of our fields in
LLDB and overwrite whatever Clang makes up.

Reviewed By: labath

Differential Revision: https://reviews.llvm.org/D112697
2021-10-30 13:22:21 +02:00
Michał Górny 16a816a19e [lldb] [gdb-remote] Fix processing generic regnums
Fix regression in processing generic regnums that was introduced
in fa456505b8 ("[lldb] [gdb-remote]
Refactor getting remote regs to use local vector").  Since then,
the "generic" field was wrongly interpreted as integer rather than
string constant.

Thanks to Ted Woodward for noticing and providing the correct code.
2021-10-29 21:37:46 +02:00
Pavel Labath a394231819 [lldb] Remove ConstString from SymbolVendor, Trace, TraceExporter, UnwindAssembly, MemoryHistory and InstrumentationRuntime plugin names 2021-10-29 12:08:57 +02:00
Luís Ferreira ac73f567cf [lldb] Remove forgotten FIXME on CPlusPlus formatters
The patch [1] introduced this FIXME but ended up not being removed when fixed.

[1]: f68df12fb0

Signed-off-by: Luís Ferreira <contact@lsferreira.net>

Reviewed By: teemperor

Differential Revision: https://reviews.llvm.org/D112586
2021-10-29 11:32:40 +02:00
Luís Ferreira 5e316012d0 [lldb] Refactor C/C++ string and char summary providers
This patch refactors C/C++ formatters to avoid repetitive code by using templates.

Reviewed By: labath

Differential Revision: https://reviews.llvm.org/D112658
Signed-off-by: Luís Ferreira <contact@lsferreira.net>
2021-10-29 11:22:02 +02:00
Pavel Labath 3abd063fc7 [lldb] Make TypeSystemClang::GetFullyUnqualifiedType work for constant arrays
Unqualify (constant) arrays recursively, just like we do for pointers.
This allows for better pretty printer matching.

Differential Revision: https://reviews.llvm.org/D112708
2021-10-29 11:13:59 +02:00
Michał Górny e9dcd8b37b [lldb] [Host/Terminal] Fix warnings with termios disabled
Thanks to Nico Weber for the suggestion.

Differential Revision: https://reviews.llvm.org/D112632
2021-10-29 09:58:09 +02:00
Jim Ingham e655769c4a Fix a bug in Launch when using an async debugger & remote platform.
We weren't setting the listener back to the unhijacked one in this
case, so that a continue after the stop fails.  It thinks the process
is still running.  Also add tests for this behavior.

Differential Revision: https://reviews.llvm.org/D112747
2021-10-28 17:02:43 -07:00
Jim Ingham 1227fa7e90 Remove unused ValueObjectDynamicValue::SetOwningSP & backing ivar
This has no uses and the ValueObjectDynamicValue already tracks
its ownership through the parent it is passed when made.  I can't
find any vestiges of the use of this API, maybe it was from some
earlier design?

Resetting the backing ivar was the only job the destructor did, so I
set that to default as well.

Differential Revision: https://reviews.llvm.org/D112677
2021-10-28 16:06:01 -07:00
Michał Górny e50f02ba7e [lldb] [Host/ConnectionFileDescriptor] Refactor to improve code reuse
Refactor ConnectionFileDescriptor to improve code reuse for different
types of sockets.  Unify method naming.

While at it, remove some (now-)dead code from Socket.

Differential Revision: https://reviews.llvm.org/D112495
2021-10-28 19:24:10 +02:00
Raphael Isemann f5c65be510 [lldb][NFC] Improve CppModuleConfiguration documentation a bit 2021-10-28 16:39:06 +02:00
Pavel Labath 5f4980f004 [lldb] Remove ConstString from Process, ScriptInterpreter and StructuredData plugin names 2021-10-28 10:15:03 +02:00
Michał Górny 073c5d0e47 [lldb] [Host/Socket] Make DecodeHostAndPort() return a dedicated struct
Differential Revision: https://reviews.llvm.org/D112629
2021-10-28 09:57:50 +02:00
Greg Clayton 1300556479 Add unix signal hit counts to the target statistics.
Android and other platforms make wide use of signals when running applications and this can slow down debug sessions. Tracking this statistic can help us to determine why a debug session is slow.

The new data appears inside each target object and reports the signal hit counts:

      "signals": [
        {
          "SIGSTOP": 1
        },
        {
          "SIGUSR1": 1
        }
      ],

Differential Revision: https://reviews.llvm.org/D112683
2021-10-27 22:31:14 -07:00
Greg Clayton fb25496832 Add breakpoint resolving stats to each target.
This patch adds breakpoints to each target's statistics so we can track how long it takes to resolve each breakpoint. It also includes the structured data for each breakpoint so the exact breakpoint details are logged to allow for reproduction of slow resolving breakpoints. Each target gets a new "breakpoints" array that contains breakpoint details. Each breakpoint has "details" which is the JSON representation of a serialized breakpoint resolver and filter, "id" which is the breakpoint ID, and "resolveTime" which is the time in seconds it took to resolve the breakpoint. A snippet of the new data is shown here:

  "targets": [
    {
      "breakpoints": [
        {
          "details": {...},
          "id": 1,
          "resolveTime": 0.00039291599999999999
        },
        {
          "details": {...},
          "id": 2,
          "resolveTime": 0.00022679199999999999
        }
      ],
      "totalBreakpointResolveTime": 0.00061970799999999996
    }
  ]

This provides full details on exactly how breakpoints were set and how long it took to resolve them.

Differential Revision: https://reviews.llvm.org/D112587
2021-10-27 16:50:11 -07:00
Med Ismail Bennani 8dbbe3356b Revert "[lldb] [Host/ConnectionFileDescriptor] Refactor to improve code reuse"
This reverts commit e1acadb61d.
2021-10-27 23:57:33 +02:00
Jonas Devlieghere 8bac9e3686 [lldb] Fixup code addresses in the Objective-C language runtime
Upstream the calls to ABI::FixCodeAddress in the Objective-C language
runtime.

Differential revision: https://reviews.llvm.org/D112662
2021-10-27 14:48:03 -07:00
Danil Stefaniuc 3eb9e6536a [formatters] Add a libstdcpp formatter for set and unify tests across stdlibs
This diff adds a data formatter for libstdcpp's set. Besides, it unifies the tests for set for libcxx and libstdcpp for maintainability.

Reviewed By: wallace

Differential Revision: https://reviews.llvm.org/D112537
2021-10-27 11:55:11 -07:00
Raphael Isemann 9d7006c4ae [lldb][NFC] Move a declaration in DWARFASTParserClang to its first use. 2021-10-27 17:46:50 +02:00
Nico Weber 99f5f0a2b7 fix comment typos to cycle bots 2021-10-27 09:43:42 -04:00
Michał Górny e1acadb61d [lldb] [Host/ConnectionFileDescriptor] Refactor to improve code reuse
Refactor ConnectionFileDescriptor to improve code reuse for different
types of sockets.  Unify method naming.

While at it, remove some (now-)dead code from Socket.

Differential Revision: https://reviews.llvm.org/D112495
2021-10-27 12:45:52 +02:00
Pavel Labath f5158ca48c Modernize Platform::GetOSKernelDescription 2021-10-27 10:46:47 +02:00
Pavel Labath 49481b5380 Remove ConstString from Language, LanguageRuntime, SystemRuntime and SymbolFile plugin names 2021-10-27 08:25:44 +02:00
Greg Clayton 2887d9fd86 Add new key/value pairs to the module statistics for "statistics dump".
The new key/value pairs that are added to each module's stats are:
"debugInfoByteSize": The size in bytes of debug info for each module.
"debugInfoIndexTime": The time in seconds that it took to index the debug info.
"debugInfoParseTime": The time in seconds that debug info had to be parsed.

At the top level we add up all of the debug info size, parse time and index time with the following keys:
"totalDebugInfoByteSize": The size in bytes of all debug info in all modules.
"totalDebugInfoIndexTime": The time in seconds that it took to index all debug info if it was indexed for all modules.
"totalDebugInfoParseTime": The time in seconds that debug info was parsed for all modules.

Differential Revision: https://reviews.llvm.org/D112501
2021-10-26 15:09:31 -07:00
Danil Stefaniuc 566bfbb740 [formatters] Add a libstdcpp formatter for bitset and unify tests across stdlibs
This diff adds a data formatter for libstdcpp's bitset. Besides, it unifies the tests for bitset for libcxx and libstdcpp for maintainability.

Reviewed By: wallace

Differential Revision: https://reviews.llvm.org/D112180
2021-10-26 14:49:50 -07:00