Commit Graph

24183 Commits

Author SHA1 Message Date
Stella Stamenova ed98676fa4 Support multi-configuration generators correctly in several config files
Multi-configuration generators (such as Visual Studio and Xcode) allow the specification of a build flavor at build time instead of config time, so the lit configuration files need to support that - and they do for the most part. There are several places that had one of two issues (or both!):

1) Paths had %(build_mode)s set up, but then not configured, resulting in values that would not work correctly e.g. D:/llvm-build/%(build_mode)s/bin/dsymutil.exe
2) Paths did not have %(build_mode)s set up, but instead contained $(Configuration) (which is the value for Visual Studio at configuration time, for Xcode they would have had the equivalent) e.g. "D:/llvm-build/$(Configuration)/lib".

This seems to indicate that we still have a lot of fragility in the configurations, but also that a number of these paths are never used (at least on Windows) since the errors appear to have been there a while.

This patch fixes the configurations and it has been tested with Ninja and Visual Studio to generate the correct paths. We should consider removing some of these settings altogether.

Reviewed By: JDevlieghere, mehdi_amini

Differential Revision: https://reviews.llvm.org/D96427
2021-02-11 09:32:20 -08:00
Raphael Isemann 71536fd031 [lldb] Fix that running a top level expression without a process fails with a cryptic error
Right now when running `expr --top-level -- void foo() {}`, LLDB just prints a cryptic
`error: Couldn't find $__lldb_expr() in the module` error. The reason for that is
that if we don't have a running process, we try to set our execution policy to always use the
IR interpreter (ExecutionPolicyNever) which works even without a process. However
that code didn't consider the special ExecutionPolicyTopLevel which we use for
top-level expressions. By changing the execution policy to ExecutionPolicyNever,
LLDB thinks we're actually trying to interpret a normal expression inside our
`$__lldb_expr` function and then fails when looking for it.

This just adds an exception for top-level expressions to that code and a bunch of tests.

Reviewed By: shafik

Differential Revision: https://reviews.llvm.org/D91723
2021-02-11 17:07:11 +01:00
Raphael Isemann 19b4d3ce27 [lldb] Don't emit a warning when using Objective-C getters in expressions
Clang emits a warning when accessing an Objective-C getter but not using the result.
This gets triggered when just trying to print a getter value in the expression parser (where
Clang just sees a normal expression like `obj.getter` while parsing).

This patch just disables the warning in the expression parser (similar to what we do with
the C++ equivalent of just accessing a member variable but not doing anything with it).

Reviewed By: kastiglione

Differential Revision: https://reviews.llvm.org/D94307
2021-02-11 16:48:41 +01:00
Raphael Isemann e87b8e4498 [lldb] Log the actual expression result in UserExpression::Evaluate
This used to be a LLDB_LOGF call that used the printf %s syntax.
0ab109d43d changed it to LLDB_LOG but didn't
update this format string to use formatv's syntax so this just printed '%s'.
2021-02-11 16:15:01 +01:00
Pavel Labath 7df4eaaa93 [lldb/test] Automatically find debug servers to test
Our test configuration logic assumes that the tests can be run either
with debugserver or with lldb-server. This is not entirely correct,
since lldb server has two "personalities" (platform server and debug
server) and debugserver is only a replacement for the latter.

A consequence of this is that it's not possible to test the platform
behavior of lldb-server on macos, as it is not possible to get a hold of
the lldb-server binary.

One solution to that would be to duplicate the server configuration
logic to be able to specify both executables. However, that seems
excessively redundant.

A well-behaved lldb should be able to find the debug server on its own,
and testing lldb with a different (lldb-|debug)server does not seem very
useful (even in the out-of-tree debugserver setup, we copy the server
into the build tree to make it appear "real").

Therefore, this patch deletes the configuration altogether and changes
the low-level server retrieval functions to be able to both lldb-server
and debugserver paths. They do this by consulting the "support
executable" directory of the lldb under test.

Differential Revision: https://reviews.llvm.org/D96202
2021-02-11 14:43:53 +01:00
Adrian Prantl 585e7a359d Diagnose unhandled cases in DW_OP_deref 2021-02-10 17:27:02 -08:00
Dave Lee 309d40f052 [lldb] Use internal_dict name over dict in python examples
Follow up to https://reviews.llvm.org/rG483ec136da7193de781a5284f1c37929cc27c05c
2021-02-10 15:11:00 -08:00
Dave Lee 606c3be85d [lldb] Minor cleanups to ThreadPlan.h (NFC)
While learning about ThreadPlan, I did a bit of cleanup:

* Remove unused code
* Move functions to protected where applicable
* Remove virtual for functions that are not overridden

Differential Revision: https://reviews.llvm.org/D96277
2021-02-10 13:36:38 -08:00
Pavel Labath d77b04e4ed [lldb/test] Move and improve TestPlatformProcessConnect.py
Although it is located under tools/lldb-server, this test is very
different that other lldb-server tests. The most important distinction
is that it does not test lldb-server directly, but rather interacts with
it through the lldb client. It also tests the relevant client
functionality (the platform connect command, which is even admitted in
the test name). The fact that this test is structured as a lldb-server
test means it cannot access most of the goodies available to the
"normal" lldb tests (the runCmd function, which it reimplements; the
run_break_set_by_symbol utility function; etc.).

This patch makes it a full-fledged lldb this, and rewrites the relevant
bits to make use of the standard features. I also move the test into the
"commands" subtree to better reflect its new status.
2021-02-10 21:01:26 +01:00
Jim Ingham 483ec136da Use internal_dict everywhere we refer to the python session dict in docs. 2021-02-09 17:48:47 -08:00
Shafik Yaghmour 4f14c17df7 [LLDB] Remove uneeded CopyType from BlockPointerSyntheticFrontEnd
BlockPointerSyntheticFrontEnd does a CopyType which results in it copying the type
back into its own context. This will result in a call to ASTImporterDelegate::setOrigin
with &decl->getASTContext() == origin.ctx this can result in an infinite recursion
later on in ASTImporter since it will attempt to find the decl in its origin which will be itself.

Differential Revision: https://reviews.llvm.org/D96366
2021-02-09 16:11:28 -08:00
Jim Ingham ffd7be65d0 Remove trailing spaces after \ in comments. 2021-02-09 16:06:47 -08:00
Jim Ingham 365b186c24 Add documentation for the extra_args parameter to breakpoint commands.
Differential Revision: https://reviews.llvm.org/D96368
2021-02-09 15:33:36 -08:00
Michał Górny bd03f6df51 [lldb] [Process/FreeBSDRemote] Introduce powerpc support
Introduce a minimal support for the 32-bit powerpc platform.  This
includes support for GPR and FPR registers.  I also needed to add
software breakpoint opcode for PPC32/PPC64 (big endian), and to fix
offsets in RegisterInfos_powerpc.h (used only by FreeBSD register
context to be globally unique rather than relative to each struct).

Differential Revision: https://reviews.llvm.org/D95947
2021-02-09 21:10:45 +01:00
Dave Lee 2309392449 [lldb] Inline invariant params to AppleThreadPlanStepThrough (NFC)
These two `AppleThreadPlanStepThrough` thread plans have parameterized behavior
that is unutilized. To make their interface and implementation simpler, this
change inlines those outside parameters.

Differential Revision: https://reviews.llvm.org/D96276
2021-02-09 08:03:51 -08:00
Dave Lee 7dc324aafa [lldb] Fix crash in FormatEntity for mangled-name
Check a `Block` pointer before dereferencing.

Using `function.mangled-name` led to a crash for a frame where the symbol
context had no block info. In my case, the frame's function was a system frame.

Differential Revision: https://reviews.llvm.org/D96307
2021-02-08 18:38:08 -08:00
Michał Górny 8244fc505d [lldb] [Process/FreeBSDRemote] Introduce mips64 support
Introduce mips64 support to match the legacy FreeBSD plugin. Similarly
to the legacy plugin, the code does not support FPU registers at the
moment.  The support for them will be submitted separately as it
requires changes to the register context shared by both plugins.

This also includes software single-stepping support that is moved from
the Linux plugin into a common Utility class.  The FreeBSD code also
starts explicitly ignoring EINVAL from PT_CLEARSTEP since this is easier
to implement than checking whether hardware single-stepping were used.

Differential Revision: https://reviews.llvm.org/D95802
2021-02-08 18:27:26 +01:00
Frederik Gossen 5a63045fe7 [LLDB] Fix `Wunused-result` warning 2021-02-08 18:10:08 +01:00
Tatyana Krasnukha 05d7d6949c [lldb/tests] Removed add_test_categories decorator for python API tests, NFC
There is a .categories file in the python_api directory that makes all nested tests
belong to the category "pyapi". The decorator is unnecessary for these tests.
2021-02-08 15:10:48 +03:00
Tatyana Krasnukha f9c5e1664e [lldb/tests] Un-skip TestGuiBasicDebug.py on Arm and AArch64
The test was timing out because of https://reviews.llvm.org/D92164, it should pass now.
2021-02-08 15:09:09 +03:00
Tatyana Krasnukha 36de94cf54 Reland "[lldb] Make CommandInterpreter's execution context the same as debugger's one" 2021-02-08 15:09:09 +03:00
Tatyana Krasnukha a39bcbca92 [lldb] Debugger: reuse ExecutionContextRef to create ExecutionContext from Target
The Debugger didn't take the Process's run lock, that causes deadlocks and races
after applying https://reviews.llvm.org/D92164 revision. Since ExecutionContextRef
does the same job correctly, Debugger::GetSelectedExecutionContext just can use it
to build execution context upon the selected target.
2021-02-08 15:09:08 +03:00
Muhammad Omair Javaid d813c37fc7 [LLDB] Fix buildbot regression in symbol-binding.test
This patch fixes regression in symbol-binding.test due to change in
symbol order.
2021-02-08 15:20:39 +05:00
Muhammad Omair Javaid 8561ad9296 Use remote regnums in expedited list, value regs and invalidate regs
Native register descriptions in LLDB specify lldb register numbers in
value_regs and invalidate_regs lists. These register numbers may not
match with Process gdb-remote register numbers which are generated by
native process after counting all registers in its register sets.

It was coincidentally not causing any problems as we never came across
a native target with dynamically changing register sets and register
numbers generated by counter matched with LLDB native register numbers.
This came up while testing target AArch64 SVE which can choose register
sets based on underlying hardware.

This patch fixes this behavior and always tries to use remote register
numbers while reading/writing registers over gdb-remote protocol.

Reviewed By: labath

Differential Revision: https://reviews.llvm.org/D77043
2021-02-08 14:09:15 +05:00
Muhammad Omair Javaid bec6b5e3ce [LLDB] Disable TestExprsChar.py, still fails on Arm/Linux
TestExprsChar.py was enabled on Arm as it passes on apple silicon but
still fails on Arm/Linux.
2021-02-08 14:05:36 +05:00
Djordje Todorovic 9abd8c1a4c [elf-core] Improve reading memory from core file
This patch tries to improve memory-read from core files
(in order to improve disassembly functionality).

I am using RHEL 7.7 (linux kernel 3.10) and for a lot of cases,
I was not able to disassemble some functions from backtrace when
debugging crashes from core files. It outputs some dummy code.

The cause of the problem was the fact we are returning all the zeros
from ProcessElfCore::ReadMemory() that is being called within
Disassembler::ParseInstructions() and it disassembles some dummy
opcodes from the buffer returned. Therefore, we are removing zero
bytes filling (padding) completely.

Differential Revision: https://reviews.llvm.org/D93939
2021-02-08 00:14:32 -08:00
Dave Lee 3cc3762292 [lldb] Use assertIn/NotIn over assertTrue/False (NFC)
For improved failure messages, use `assertIn` over `assertTrue`.

Differential Revision: https://reviews.llvm.org/D96095
2021-02-06 11:52:01 -08:00
Jonas Devlieghere 28c6b1e552 [lldb] Re-enable TestExprsChar on arm64
This test passes on arm64 (Apple Silicon). I assume that "aarch64" still
ensures this gets skipped on Linux. I don't have access to such and
environment so I'll have to rely on the bot complaining.
2021-02-05 15:21:24 -08:00
Jonas Devlieghere ac1242bce3 [debugserver] Fix more warnings in DNBArchImplARM64 2021-02-05 15:21:24 -08:00
Jonas Devlieghere e5228ef556 [lldb] Emit type annotation in SWIG generated Python code.
The Python code generated by SWIG is compatible with both Python 2 and
Python 3. The -py3 option enables Python 2 incompatible features such as
function annotations and abstract base classes.

Differential revision: https://reviews.llvm.org/D96096
2021-02-05 08:51:22 -08:00
Raphael Isemann 6e1afd8587 [lldb][NFC] Minor comment and inlining fixes for Args
The element count getter can just be in the header. Also doxygenify some of the
comments and document m_argv's terminating nullptr element that the other
comments keep mentioning.
2021-02-05 10:17:16 +01:00
Pavel Labath b90c4907ae [lldb/cmake] Reduce duplication in generation lldb-dotest
Use indirection to avoid duplicated long lists of variables.

Depends on D95261.

Differential Revision: https://reviews.llvm.org/D96034
2021-02-05 08:44:10 +01:00
Pavel Labath 98d9f2dcac [lldb/test] Reduce API test tools configuration boilerplate
Replace the dotest command line options and various cmake variables,
which are used for passing the locations of llvm tools to the API tests
with a single variable, which points to the directory these tools are
placed in. Besides reducing repetition, this also makes things more
similar to how "normal" llvm tests are configured.

Differential Revision: https://reviews.llvm.org/D95261
2021-02-05 08:44:08 +01:00
Adrian Prantl 644ef58073 Print the "no plugin" warning only when there is no plugin
... and not when the typesystem failed to initialize.

rdar://72562341

Differential Revision: https://reviews.llvm.org/D95992
2021-02-04 11:06:10 -08:00
Walter Erquinigo 36496cc299 [lldb-vscode] correctly use Windows macros
@mstorsjo found a mistake that I made when trying to fix some Windows
compilation errors encountered by @stella.stamenova.

I was incorrectly using the LLVM_ON_UNIX macro. In any case, proper use
of

  #if defined(_WIN32)

should be the actual fix.

Differential Revision: https://reviews.llvm.org/D96060
2021-02-04 11:03:33 -08:00
Jonas Devlieghere 727bd89b60 [lldb] Simplify the logic to detect compiler flag support
This patch effectively does the following 3 things:

 - Centralize the logic to figure out if a compiler flag is supported.
 - Stop sanity checking whether the compiler works at all. While useful,
   that's not the decorator's responsibility.
 - Invoke the compiler with xcrun on Darwin so we know where to find the
   sysroot.

On my macOS Big Sur system, the clang invocation couldn't find libSystem
and would fail the sanity check in the decorator. This meant that the
test suite would always try to run the ASan/UBSan/TSan tests, regardless
of whether compiler-rt was built.

Differential revision: https://reviews.llvm.org/D95995
2021-02-04 08:52:56 -08:00
Pavel Labath aa56b30014 [lldb] Make TestLocalVariables.py compatible with the new pass manager
The new PM is more aggressive at inlining, which breaks assumptions in
the test => slap some __attribute__((noinlines)) to prevent that.
2021-02-04 11:27:08 +01:00
Dave Lee 0ed758b260 [lldb] Convert more assertTrue to assertEqual (NFC)
Follow up to D95813, this converts multiline assertTrue to assertEqual.

Differential Revision: https://reviews.llvm.org/D95899
2021-02-03 21:15:08 -08:00
Jonas Devlieghere e3bb1c80fe [lldb] Rollback to using i386 for the watch simulator
I switched the watch simulator test from i386 to using x86_64, but
apparently that's not supported on the bots. Rollback to using i386 and
solve the original issue by passing the target, similar to what I did
in TestSimulatorPlatform.py.
2021-02-03 16:32:55 -08:00
Jonas Devlieghere b3901ef09c [lldb] Check for both Lua 5.3 and 5.4 error messages in the tests. 2021-02-03 13:46:00 -08:00
Jonas Devlieghere 98e50a7d4c [lldb] Honor the CPU type & subtype when launching on macOS
Honor the CPU type (and subtype) when launching the inferior on macOS.

Part of this functionality was thought to be no longer needed and
removed in 85bd436961, however it's still
needed, for example to launch binaries under Rosetta 2 on Apple Silicon.

This patch will use posix_spawnattr_setarchpref_np if available and
fallback to posix_spawnattr_setbinpref_np if not.

Differential revision: https://reviews.llvm.org/D95922
2021-02-03 13:42:00 -08:00
Jonas Devlieghere 5580fa10db [lldb] Fix debugserver-entitlements.plist path 2021-02-03 10:42:36 -08:00
Med Ismail Bennani 608ee55a31
[lldb/test] Stop recording fundamental return types (NFC)
It seems that recording fundamental return type is bogus.

This can trigger asserts when running a test with reproducers so this
patch updates the `SBTarget::IsLoaded` test to stop recording them.

Differential Revision: https://reviews.llvm.org/D95686

Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
2021-02-03 02:57:26 +01:00
Dave Lee 619e2e095f [lldb] Convert assertTrue(a == b) to assertEqual(a, b)
Convert `assertTrue(a == b)` to `assertEqual(a, b)` to produce better failure messages.

These were mostly done via regex search & replace, with some manual fixes.

Differential Revision: https://reviews.llvm.org/D95813
2021-02-02 12:39:03 -08:00
Jonas Devlieghere 39047f6c2e [debugserver] Fix -Wmissing-field-initializers warnings on arm64 2021-02-02 10:29:09 -08:00
Jonas Devlieghere ec6815a72d [debugserver] Fix -Wsign-compare warnings on arm64 2021-02-02 10:23:57 -08:00
Jonas Devlieghere 9a62b7242a [debugserver] Fix -Wunused-function warnings on arm64 2021-02-02 10:20:11 -08:00
Jonas Devlieghere 870a58a758 [debugserver] Fix -Winconsistent-missing-override warnings on arm64 2021-02-02 09:41:18 -08:00
Raphael Isemann 0f2be195d5 Revert "[lldb] Use current execution context in SBDebugger"
This reverts commit 754ab803b8.

As pointed out in https://reviews.llvm.org/D95761, this patch could lead to
having the wrong execution context in some situations (thanks Jim!).

D92164 is addressing the same issue and will replace this patch, so I'll
revert this one.
2021-02-02 14:41:48 +01:00
Fangrui Song 45db9d4594 [test] Fix unused FileCheck prefixes in lldb 2021-02-01 21:45:51 -08:00