Commit Graph

395 Commits

Author SHA1 Message Date
Kazu Hirata 50630dcc4c [lldb] Fix warnings
This patch fixes:

  lldb/source/Plugins/Instruction/RISCV/EmulateInstructionRISCV.h:34:5:
  error: default label in switch which covers all enumeration values
  [-Werror,-Wcovered-switch-default]

and:

  lldb/source/Plugins/Instruction/RISCV/EmulateInstructionRISCV.cpp:194:21:
  error: comparison of integers of different signs: 'int' and 'size_t'
  (aka 'unsigned long') [-Werror,-Wsign-compare]
2022-08-16 12:33:21 -07:00
Emmmer 4fc7e9cba2 [LLDB][RISCV] Make software single stepping work
Add:
- `EmulateInstructionRISCV`, which can be used for riscv32 and riscv64.
- Add unittests for EmulateInstructionRISCV.

Note: Compressed instructions set (RVC) was still not supported in this patch.

Reviewed By: DavidSpickett

Differential Revision: https://reviews.llvm.org/D131759
2022-08-16 23:44:50 +08:00
David Spickett 662c1c2881 [LLDB][ARM] Remove unused LoadPseudoRegistersFromFrame function
https://reviews.llvm.org/D131658 identified a bug in this and
turns out it's not used anywhere.

Reviewed By: JDevlieghere, clayborg

Differential Revision: https://reviews.llvm.org/D131664
2022-08-16 08:28:50 +00:00
Slava Gurevich ab6a0823af [LLDB] Fix out-of-bounds memory access in EmulationStateArm
Functionally broken code for reading and writing registers, likely due to typos,
and could cause out-of-bounds memory access.

Differential Revision: https://reviews.llvm.org/D131658
2022-08-11 01:34:18 -07:00
Slava Gurevich f4c21ab8b3 [LLDB][NFC] Clean up dead code
Remove unreachable code that will never execute.

Differential Revision: https://reviews.llvm.org/D131613
2022-08-10 15:22:15 -07:00
Slava Gurevich f7c961cc6b [LLDB][NFC][Reliability] Fixes for int overflow and uninitialized state
Fixing potential int overflow and uninitialized variables.
These were found by Coverity static code inspection.

Differential Revision: https://reviews.llvm.org/D130795
2022-07-29 13:31:17 -07:00
David Spickett d0479cb290 [lldb][ARM] Use portable printf tokens for 64 bit types
Fixes some warnings in the 32 bit build.
2022-07-26 09:12:57 +00:00
David Spickett 10c2bab50e [lldb][ARM] Add tests for vpush/vpop D registers
Previously we just checked via S regs and were not checking
memory content after pushes.

The vpush test confirms that the fix in https://reviews.llvm.org/D130307
is working.

Memory will only be checked if an "after" state is provided.

Reviewed By: clayborg

Differential Revision: https://reviews.llvm.org/D130468
2022-07-26 08:41:24 +00:00
David Spickett 3ebd541944 [lldb][ARM] Print mismatched registers in emulation tests
Also correct the test failed message. It implies that what
it's done is compare the 'before' and 'ater' states from the
test input.

Except that that's the whole point of the test, that the state changes.
It should tell you that it compared the result of the emulation to the
'after'.

Reviewed By: clayborg

Differential Revision: https://reviews.llvm.org/D130464
2022-07-26 08:28:27 +00:00
David Spickett 290c4bc7be [LLDB][ARM] Generalise adding register state in emulation tests and add D registers
Since some s and d registers overlap we will error if we find both.
This prevents you overwriting one with the other in a test case.

Reviewed By: clayborg

Differential Revision: https://reviews.llvm.org/D130462
2022-07-26 08:22:26 +00:00
Slava Gurevich e80dbfddc5 [LLDB][Reliability] Fix register value unpacking
Fix incorrect direction for bit-shifting.

Coverity warning 1355603 (scan.coverity.com)

Differential Revision: https://reviews.llvm.org/D130307
2022-07-26 00:22:40 -07:00
Slava Gurevich 459cfa5e94 [LLDB][NFC][Reliability] Fix uninitialized variables from Coverity scan
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
2022-07-20 14:50:48 -07:00
Pavel Labath 13a3b0bb4b [lldb] Remove usages of case-insensitive c-string functions
They are not portable (which meant we had a hand-rolled implementation
for windows), and llvm::StringRef provides equivalent functionality.
2022-03-29 17:59:17 +02:00
Pavel Labath c34698a811 [lldb] Rename Logging.h to LLDBLog.h and clean up includes
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.
2022-02-03 14:47:01 +01:00
Pavel Labath a007a6d844 [lldb] Convert "LLDB" log channel to the new API 2022-02-02 14:13:08 +01:00
Benjamin Kramer f15014ff54 Revert "Rename llvm::array_lengthof into llvm::size to match std::size from C++17"
This reverts commit ef82063207.

- It conflicts with the existing llvm::size in STLExtras, which will now
  never be called.
- Calling it without llvm:: breaks C++17 compat
2022-01-26 16:55:53 +01:00
serge-sans-paille ef82063207 Rename llvm::array_lengthof into llvm::size to match std::size from C++17
As a conquence move llvm::array_lengthof from STLExtras.h to
STLForwardCompat.h (which is included by STLExtras.h so no build
breakage expected).
2022-01-26 16:17:45 +01:00
Kazu Hirata 0542d15211 Remove redundant string initialization (NFC)
Identified with readability-redundant-string-init.
2021-12-26 09:39:26 -08:00
Pavel Labath 6fa1b4ff4b Remove ConstString from DynamicLoader, JITLoader and Instruction plugin names 2021-10-25 10:32:35 +02:00
Pavel Labath a3939e159f [lldb] Return StringRef from PluginInterface::GetPluginName
There is no reason why this function should be returning a ConstString.

While modifying these files, I also fixed several instances where
GetPluginName and GetPluginNameStatic were returning different strings.

I am not changing the return type of GetPluginNameStatic in this patch, as that
would necessitate additional changes, and this patch is big enough as it is.

Differential Revision: https://reviews.llvm.org/D111877
2021-10-18 10:14:42 +02:00
Reid Kleckner 89b57061f7 Move TargetRegistry.(h|cpp) from Support to MC
This moves the registry higher in the LLVM library dependency stack.
Every client of the target registry needs to link against MC anyway to
actually use the target, so we might as well move this out of Support.

This allows us to ensure that Support doesn't have includes from MC/*.

Differential Revision: https://reviews.llvm.org/D111454
2021-10-08 14:51:48 -07:00
Pavel Labath 202af507fd Recommit: [lldb] Remove "dwarf dynamic register size expressions" from RegisterInfo
The previous version of the patch did not update the definitions in
conditionally compiled code. This patch includes changes to ARC and
windows targets.

Original commit message was:

These were added to support some mips registers on linux, but linux mips
support has now been removed due.

They are still referenced in the freebds mips implementation, but the
completeness of that implementation is also unknown. All other
architectures just set these fields to zero, which is a cause of
significant bloat in our register info definitions.

Arm also has registers with variable sizes, but they were implemented in
a more gdb-compatible fashion and don't use this feature.

Differential Revision: https://reviews.llvm.org/D110914
2021-10-07 11:15:00 +02:00
Michael Forster b2c906da19 Revert "[lldb] Remove "dwarf dynamic register size expressions" from RegisterInfo"
This reverts commit 00e704bf08.

This commit should should have updated
llvm/llvm-project/lldb/source/Plugins/ABI/ARC/ABISysV_arc.cpp like the other
architectures.
2021-10-06 18:15:25 +02:00
Pavel Labath 00e704bf08 [lldb] Remove "dwarf dynamic register size expressions" from RegisterInfo
These were added to support some mips registers on linux, but linux mips
support has now been removed due.

They are still referenced in the freebds mips implementation, but the
completeness of that implementation is also unknown. All other
architectures just set these fields to zero, which is a cause of
significant bloat in our register info definitions.

Arm also has registers with variable sizes, but they were implemented in
a more gdb-compatible fashion and don't use this feature.

Differential Revision: https://reviews.llvm.org/D110914
2021-10-06 13:22:38 +02:00
Pavel Labath b03126768a [lldb] Remove PluginInterface::GetPluginVersion
In all these years, we haven't found a use for this function (it has
zero callers). Lets just remove the boilerplate.

Differential Revision: https://reviews.llvm.org/D109600
2021-09-13 10:29:00 +02:00
Chris Lattner 735f46715d [APInt] Normalize naming on keep constructors / predicate methods.
This renames the primary methods for creating a zero value to `getZero`
instead of `getNullValue` and renames predicates like `isAllOnesValue`
to simply `isAllOnes`.  This achieves two things:

1) This starts standardizing predicates across the LLVM codebase,
   following (in this case) ConstantInt.  The word "Value" doesn't
   convey anything of merit, and is missing in some of the other things.

2) Calling an integer "null" doesn't make any sense.  The original sin
   here is mine and I've regretted it for years.  This moves us to calling
   it "zero" instead, which is correct!

APInt is widely used and I don't think anyone is keen to take massive source
breakage on anything so core, at least not all in one go.  As such, this
doesn't actually delete any entrypoints, it "soft deprecates" them with a
comment.

Included in this patch are changes to a bunch of the codebase, but there are
more.  We should normalize SelectionDAG and other APIs as well, which would
make the API change more mechanical.

Differential Revision: https://reviews.llvm.org/D109483
2021-09-09 09:50:24 -07:00
Jonas Devlieghere fd2433e139 [lldb] Replace default bodies of special member functions with = default;
Replace default bodies of special member functions with = default;

$ run-clang-tidy.py -header-filter='lldb' -checks='-*,modernize-use-equals-default' -fix ,

https://clang.llvm.org/extra/clang-tidy/checks/modernize-use-equals-default.html

Differential revision: https://reviews.llvm.org/D104041
2021-07-02 11:31:16 -07:00
Jonas Devlieghere 9494c510af [lldb] Use C++11 default member initializers
This converts a default constructor's member initializers into C++11
default member initializers. This patch was automatically generated with
clang-tidy and the modernize-use-default-member-init check.

$ run-clang-tidy.py -header-filter='lldb' -checks='-*,modernize-use-default-member-init' -fix

This is a mass-refactoring patch and this commit will be added to
.git-blame-ignore-revs.

Differential revision: https://reviews.llvm.org/D103483
2021-06-09 09:43:13 -07:00
Raphael Isemann 76e47d4887 [lldb][NFC] Use C++ versions of the deprecated C standard library headers
The C headers are deprecated so as requested in D102845, this is replacing them
all with their (not deprecated) C++ equivalent.

Reviewed By: shafik

Differential Revision: https://reviews.llvm.org/D103084
2021-05-26 12:46:12 +02:00
Philipp Krones c2f819af73 [MC] Refactor MCObjectFileInfo initialization and allow targets to create MCObjectFileInfo
This makes it possible for targets to define their own MCObjectFileInfo.
This MCObjectFileInfo is then used to determine things like section alignment.

This is a follow up to D101462 and prepares for the RISCV backend defining the
text section alignment depending on the enabled extensions.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D101921
2021-05-23 14:15:23 -07:00
Philipp Krones 632ebc4ab4 [MC] Untangle MCContext and MCObjectFileInfo
This untangles the MCContext and the MCObjectFileInfo. There is a circular
dependency between MCContext and MCObjectFileInfo. Currently this dependency
also exists during construction: You can't contruct a MOFI without a MCContext
without constructing the MCContext with a dummy version of that MOFI first.
This removes this dependency during construction. In a perfect world,
MCObjectFileInfo wouldn't depend on MCContext at all, but only be stored in the
MCContext, like other MC information. This is future work.

This also shifts/adds more information to the MCContext making it more
available to the different targets. Namely:

- TargetTriple
- ObjectFileType
- SubtargetInfo

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D101462
2021-05-05 10:03:02 -07:00
Jason Molenda e9fe788d32 Target::ReadMemory read from read-only binary file Section, not memory
Commiting this patch for Augusto Noronha who is getting set
up still.

This patch changes Target::ReadMemory so the default behavior
when a read is in a Section that is read-only is to fetch the
data from the local binary image, instead of reading it from
memory.  Update all callers to use their old preferences
(the old prefer_file_cache bool) using the new API; we should
revisit these calls and see if they really intend to read
live memory, or if reading from a read-only Section would be
equivalent and important for performance-sensitive cases.

rdar://30634422

Differential revision: https://reviews.llvm.org/D100338
2021-04-16 16:13:07 -07:00
Adam Balogh 1b2d2d70e1 [LLDB][NFC] Remove redundant condition
Condition `auto_advance_pc` is checked both in an outer and in an
inner `if` statement in `EmulateInstructionARM::EvaluateInstruction()`,
`EmulateInstructionARM64::EvaluateInstruction()` and
`EmulateInstructionPPC64::EvaluateInstruction()`. This patch removes the
redundant inner check.

The issue was found using `clang-tidy` check under review
`misc-redundant-condition`. See https://reviews.llvm.org/D81272.

Differential Revision: https://reviews.llvm.org/D82558
2020-07-01 09:04:26 +02:00
Jonas Devlieghere 06412dae82 [lldb] Use std::make_unique<> (NFC)
Update the rest of lldb to use std::make_unique<>. I used clang-tidy to
automate this, which probably missed cases that are wrapped in ifdefs.
2020-06-24 17:48:40 -07:00
Konrad Kleine eaebcbc679 [lldb] NFC remove DISALLOW_COPY_AND_ASSIGN
Summary:
This is how I applied my clang-tidy check (see
https://reviews.llvm.org/D80531) in order to remove
`DISALLOW_COPY_AND_ASSIGN` and have deleted copy ctors and deleted
assignment operators instead.

```
lang=bash
grep DISALLOW_COPY_AND_ASSIGN /opt/notnfs/kkleine/llvm/lldb -r -l | sort | uniq > files

for i in $(cat files);
do
  clang-tidy \
    --checks="-*,modernize-replace-disallow-copy-and-assign-macro" \
    --format-style=LLVM \
    --header-filter=.* \
    --fix \
    -fix-errors \
    $i;
done
```

Reviewers: espindola, labath, aprantl, teemperor

Reviewed By: labath, aprantl, teemperor

Subscribers: teemperor, aprantl, labath, emaste, sbc100, aheejin, MaskRay, arphaman, usaxena95, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D80543
2020-06-02 13:23:53 -04:00
Adrian Prantl a0b674fd7f Fix UB in EmulateInstructionARM64.cpp
This fixes an unhandled signed integer overflow in AddWithCarry() by
using the llvm::checkedAdd() function. Thats to Vedant Kumar for the
suggestion!

<rdar://problem/60926115>

Differential Revision: https://reviews.llvm.org/D80955
2020-06-01 18:11:50 -07:00
Davide Italiano 30ddd4ce19 [ARM64] Remove more dead code. NFC. 2020-05-01 15:05:42 -07:00
Davide Italiano 68f8e0264e [ARM64] Remove dead code. 2020-05-01 15:04:44 -07:00
Kazuaki Ishizaki e9264b746b [lldb] NFC: Fix trivial typo in comments, documents, and messages
Differential Revision: https://reviews.llvm.org/D77460
2020-04-07 01:06:16 +09:00
Raphael Isemann b8dab9b3d5 [lldb] Remove some debugging printfs from ITSession code
Summary:
This seems only useful for debugging and it's just plainly printf'ing to the console instead
of some log, so let's remove this.

Reviewers: #lldb, JDevlieghere

Reviewed By: JDevlieghere

Subscribers: JDevlieghere

Differential Revision: https://reviews.llvm.org/D76699
2020-03-24 18:09:27 +01:00
Jonas Devlieghere cdc514e4c6 [lldb] Update header guards to be consistent and compliant with LLVM (NFC)
LLDB has a few different styles of header guards and they're not very
consistent because things get moved around or copy/pasted. This patch
unifies the header guards across LLDB and converts everything to match
LLVM's style.

Differential revision: https://reviews.llvm.org/D74743
2020-02-17 23:15:40 -08:00
Jonas Devlieghere ccad194861 [lldb/Plugins] Rename initializers to match their plugin name.
Use LLDB_PLUGIN_DEFINE_ADV to make the name of the generated initializer
match the name of the plugin. This is a step towards generating the
initializers with a def file. I'm landing this change in pieces so I can
narrow down what exactly breaks the Windows bot.
2020-02-17 20:07:53 -08:00
Jonas Devlieghere 50c9cd9526 Revert "[lldb/CMake] Auto-generate the Initialize and Terminate calls for plugin"
This is still failing spectacularly on the Windows bot and I still have
no clue what's going on.
2020-02-17 19:04:50 -08:00
Jonas Devlieghere 9b12dc98fd Re-land "[lldb/CMake] Auto-generate the Initialize and Terminate calls for plugin"
This patch changes the way we initialize and terminate the plugins in
the system initializer. It uses an approach similar to LLVM's
TARGETS_TO_BUILD with a def file that enumerates the plugins.

The previously landed patch got reverted because it was lacking:

 (1) A plugin definition for the Objective-C language runtime,
 (2) The dependency between the Static and WASM dynamic loader,
 (3) Explicit initialization of ScriptInterpreterNone for lldb-test.

All issues have been addressed in this patch.

Differential revision: https://reviews.llvm.org/D73067
2020-02-17 14:43:05 -08:00
Jonas Devlieghere 058cb1b47f Revert "[lldb/CMake] Auto-generate the Initialize and Terminate calls for plugin"
This temporarily reverts commit 7d6da329de
because it's causing test failures on the bots.
2020-02-17 12:34:21 -08:00
Jonas Devlieghere 7d6da329de [lldb/CMake] Auto-generate the Initialize and Terminate calls for plugin
This patch changes the way we initialize and terminate the plugins in
the system initializer. It uses an approach similar to LLVM's
TARGETS_TO_BUILD with a def file that enumerates the plugins.

Differential revision: https://reviews.llvm.org/D73067
2020-02-17 09:07:00 -08:00
Jonas Devlieghere bba9ba8d95 [lldb/Plugin] s/LLDB_PLUGIN/LLDB_PLUGIN_DEFINE/ (NFC)
Rename LLDB_PLUGIN to LLDB_PLUGIN_DEFINE as Pavel suggested in D73067 to
avoid name conflict.
2020-02-14 09:58:24 -08:00
Martin Storsjö 6115bd9ba2 [LLDB] Fix GCC warnings about extra semicolons. NFC. 2020-02-10 11:20:44 +02:00
Jonas Devlieghere fbb4d1e43d [lldb/Plugins] Use external functions to (de)initialize plugins
This is a step towards making the initialize and terminate calls be
generated by CMake, which in turn is towards making it possible to
disable plugins at configuration time.

Differential revision: https://reviews.llvm.org/D74245
2020-02-07 15:28:27 -08:00
Raphael Isemann 808142876c [lldb][NFC] Fix all formatting errors in .cpp file headers
Summary:
A *.cpp file header in LLDB (and in LLDB) should like this:
```
//===-- TestUtilities.cpp -------------------------------------------------===//
```
However in LLDB most of our source files have arbitrary changes to this format and
these changes are spreading through LLDB as folks usually just use the existing
source files as templates for their new files (most notably the unnecessary
editor language indicator `-*- C++ -*-` is spreading and in every review
someone is pointing out that this is wrong, resulting in people pointing out that this
is done in the same way in other files).

This patch removes most of these inconsistencies including the editor language indicators,
all the different missing/additional '-' characters, files that center the file name, missing
trailing `===//` (mostly caused by clang-format breaking the line).

Reviewers: aprantl, espindola, jfb, shafik, JDevlieghere

Reviewed By: JDevlieghere

Subscribers: dexonsmith, wuzish, emaste, sdardis, nemanjai, kbarton, MaskRay, atanasyan, arphaman, jfb, abidh, jsji, JDevlieghere, usaxena95, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D73258
2020-01-24 08:52:55 +01:00