475 Commits

Author SHA1 Message Date
Daniel Rodríguez Troitiño
5e327785da [lldb] Match test dependencies name to other LLVM projects.
Other LLVM projects use the suffix `-depends` for the test dependencies,
however LLDB uses `-deps` and seems to be the only project under the
LLVM to do so.

In order to make the projects more homogeneous, switch all the
references to `lldb-test-deps` to `lldb-test-depends`.

Additionally, provide a compatibility target with the old name and
depending on the new name, in order to not break anyone workflow.

Reviewed By: JDevlieghere

Differential Revision: https://reviews.llvm.org/D102889
2021-05-21 00:10:27 -07:00
Jan Kratochvil
6d19c84cd9 [lldb] Improve invalid DWARF DW_AT_ranges error reporting
In D98289#inline-939112 @dblaikie said:
  Perhaps this could be more informative about what makes the range list
  index of 0 invalid? "index 0 out of range of range list table (with
  range list base 0xXXX) with offset entry count of XX (valid indexes
  0-(XX-1))" Maybe that's too verbose/not worth worrying about since
  this'll only be relevant to DWARF producers trying to debug their
  DWARFv5, maybe no one will ever see this message in practice. Just
  a thought.

Reviewed By: dblaikie

Differential Revision: https://reviews.llvm.org/D102851
2021-05-20 21:37:01 +02:00
Jan Kratochvil
d131081719 [lldb] 2/2: Fix DW_AT_ranges DW_FORM_sec_offset not using DW_AT_rnglists_base (used by GCC)
DW_AT_ranges can use DW_FORM_sec_offset (instead of DW_FORM_rnglistx).
In such case DW_AT_rnglists_base does not need to be present.
DWARF-5 spec:
        "If the offset_entry_count is zero, then DW_FORM_rnglistx cannot
        be used to access a range list; DW_FORM_sec_offset must be used
        instead. If the offset_entry_count is non-zero, then
        DW_FORM_rnglistx may be used to access a range list;"

This fix is for TestTypeCompletion.py category `dwarf` using GCC with DWARF-5.

The fix just provides GetRnglist() lazy getter for `m_rnglist_table`.
The testcase is easier to review by:
        diff -u lldb/test/Shell/SymbolFile/DWARF/DW_AT_low_pc-addrx.s \
          lldb/test/Shell/SymbolFile/DWARF/DW_AT_range-DW_FORM_sec_offset.s

Differential Revision: https://reviews.llvm.org/D98289
2021-05-19 15:57:40 +02:00
James Henderson
a1e6565855 [lit] Stop using PATH to lookup clang/lld/lldb unless requested
This patch stops lit from looking on the PATH for clang, lld and other
users of use_llvm_tool (currently only the debuginfo-tests) unless the
call explicitly requests to opt into using the PATH. When not opting in,
tests will only look in the build directory.

See the mailing list thread starting from
https://lists.llvm.org/pipermail/llvm-dev/2021-May/150421.html.

See the review for details of why decisions were made about when still
to use the PATH.

Reviewed by: thopre

Differential Revision: https://reviews.llvm.org/D102630
2021-05-18 10:43:33 +01:00
Adrian Prantl
017d7a9e14 Rename human-readable name for DW_LANG_Mips_Assembler
The Mips in DW_LANG_Mips_Assembler is a vendor name not an
architecture name and in lack of a proper generic DW_LANG_assembler,
some assemblers emit DWARF using this tag. Due to a warning I recently
introduced users will now be greeted with

  This version of LLDB has no plugin for the mipsassem language. Inspection of frame variables will be limited.

By renaming this to just "Assembler" this error message will make more sense.

Differential Revision: https://reviews.llvm.org/D101406

rdar://77214764
2021-05-12 19:13:58 -07:00
Michał Górny
b6c0edb979 [lldb] [Process/elf-core] Fix reading FPRs from FreeBSD/i386 cores
The FreeBSD coredumps from i386 systems contain only FSAVE-style
NT_FPREGSET.  Since we do not really support reading that kind of data
anymore, just use NT_X86_XSTATE to get FXSAVE-style data when available.

Differential Revision: https://reviews.llvm.org/D101086
2021-05-12 11:51:37 +02:00
Jonas Devlieghere
91d3f73937 [lldb] Update register state parsing for JSON crashlogs
- The register encoding state in the JSON crashlog format changes.
   Update the parser accordingly.
 - Print the register state when printing the symbolicated thread.
2021-04-22 16:40:59 -07:00
Jonas Devlieghere
a62cbd9a02 [lldb] Include thread name in crashlog.py output
Update the JSON parser to include the thread name in the Thread object.

rdar://76677320
2021-04-22 11:38:53 -07:00
Michał Górny
e414ede2cd [lldb] [test/Register] Initial tests for regsets in core dumps
Add initial tests for reading register sets from core dumps.  This
includes a C++ program to write registers and dump core, resulting core
dumps for Linux, FreeBSD and NetBSD, and the tests to verify them.

The tests are split into generic part, verifying user-specified register
values, and coredump-specific tests that verify memory addresses that
differ for every dump.

At this moment, all platforms support GPRs and FPRs up to XMM for amd64
target.  The i386 target does not work on NetBSD at all, and is missing
FPRs entirely on FreeBSD.

Differential Revision: https://reviews.llvm.org/D91963
2021-04-21 19:41:09 +02:00
Pavel Labath
cd64273f5e [lldb/ELF] Fix IDs of synthetic eh_frame symbols
The code used the total number of symbols to create a symbol ID for the
synthetic symbols. This is not correct because the IDs of real symbols
can be higher than their total number, as we do not add all symbols (and
in particular, we never add symbol zero, which is not a real symbol).

This meant we could have symbols with duplicate IDs, which caused
problems if some relocations were referring to the duplicated IDs. This
was the cause of the failure of the test D97786.

This patch fixes the code to use the ID of the highest (last) symbol
instead.
2021-04-21 11:24:43 +02:00
Jonas Devlieghere
eff4f65afb [lldb] Simplify check for nill value in breakpoint_function_callback.test 2021-04-20 21:53:30 -07:00
Jonas Devlieghere
a7712091ea [lldb] Update breakpoint_function_callback.test for different error message
Adjust for the Lua error message printed by Lua 5.4.3.
2021-04-19 12:23:23 -07:00
Caroline Tice
3dc24bc31e [LLDB] Re-land: Use path relative to binary for finding .dwo files.
DWARF allows .dwo file paths to be relative rather than absolute. When
they are relative, DWARF uses DW_AT_comp_dir to find the .dwo
file. DW_AT_comp_dir can also be relative, making the entire search
patch for the .dwo file relative. In this case, LLDB currently
searches relative to its current working directory, i.e. the directory
from which the debugger was launched. This is not right, as the
compiler, which generated the relative paths, can have no idea where
the debugger will be launched. The correct thing is to search relative
to the location of the executable binary. That is what this patch
does.

Differential Revision: https://reviews.llvm.org/D97786
2021-04-16 11:12:39 -07:00
Caroline Tice
042668d092 Revert "[LLDB] Use path relative to binary for finding .dwo files."
This reverts commit b241f3cb292d0ba1ad5a33b3bbd4a8a3a9c909dc.

Test case is breaking windows builder.
2021-04-15 17:17:44 -07:00
Caroline Tice
b241f3cb29 [LLDB] Use path relative to binary for finding .dwo files.
DWARF allows .dwo file paths to be relative rather than absolute. When
they are relative, DWARF uses DW_AT_comp_dir to find the .dwo
file. DW_AT_comp_dir can also be relative, making the entire search
patch for the .dwo file relative. In this case, LLDB currently
searches relative to its current working directory, i.e. the directory
from which the debugger was launched. This is not right, as the
compiler, which generated the relative paths, can have no idea where
the debugger will be launched. The correct thing is to search relative
to the location of the executable binary. That is what this patch
does.

Differential Revision: https://reviews.llvm.org/D97786
2021-04-15 14:43:47 -07:00
David Spickett
f152472af5 [lldb] Require x86 for various NativePDB, Breakpad and Minidump tests
These tests fail if you build without the x86 llvm backend.
Either because they use an x86 triple or try to backtrace which
requires some x86 knowledge to see all frames.

Reviewed By: labath

Differential Revision: https://reviews.llvm.org/D100194
2021-04-13 12:51:48 +00:00
Michał Górny
c8d18cba4e Reland "[lldb] [Process] Watch for fork/vfork notifications" for Linux
Big thanks to Pavel Labath for figuring out my mistake.

Differential Revision: https://reviews.llvm.org/D98822
2021-04-13 14:38:31 +02:00
Michał Górny
7da3b44d67 Reland "[lldb] [Process] Watch for fork/vfork notifications" for NetBSD
Differential Revision: https://reviews.llvm.org/D98822
2021-04-13 14:35:44 +02:00
Michał Górny
63d7564105 Reland "[lldb] [Process] Watch for fork/vfork notifications" for FreeBSD
The original commit was reverted because of the problems it introduced
on Linux.  However, FreeBSD should not be affected, so restore that part
and we will address Linux separately.

While at it, remove the dbreg hack as the underlying issue has been
fixed in the FreeBSD kernel and the problem is unlikely to happen
in real life use anyway.

Differential Revision: https://reviews.llvm.org/D98822
2021-04-13 13:19:42 +02:00
Pavel Labath
121cff78a8 Revert "[lldb] [Process] Watch for fork/vfork notifications" and associated followups
This commit has caused the following tests to be flaky:
TestThreadSpecificBpPlusCondition.py
TestExitDuringExpression.py

The exact cause is not known yet, but since both tests deal with
threads, my guess is it has something to do with the tracking of
creation of new threads (which the commit touches upon).

This reverts the following commits:
d01bff8cbdc98fb8751f7bf10af19b47ae5c445d,
ba62ebc48e8c424ce3a78ba01acda679d536dd47,
e761b6b4c58d4f7ae1073d925d7cb321d68ee93a,
a345419ee03095c8cdfbe1c2728467c4da8fa0a4.
2021-04-13 11:03:06 +02:00
David Spickett
8a64d80a95 [lldb] Require x86 backend for a bunch of DWARF tests
By moving them into a folder with a local lit config
requiring x86. All these tests use x86 target triples.

There are two tests that require target-x86_64 because
they run program files (instead of just needing the backend).
Those are moved to the x86 folder also but their REQUIRES are
unchanged.

Reviewed By: JDevlieghere

Differential Revision: https://reviews.llvm.org/D100193
2021-04-13 08:47:41 +00:00
Jonas Devlieghere
ba62ebc48e [lldb] Disable Shell/Subporcess with reproducers 2021-04-12 13:08:14 -07:00
Alexander Belyaev
39ae25fb8c [lldb] Update object.test after 'nosync' inference was enabled.
https://reviews.llvm.org/D99769
2021-04-09 10:04:15 +02:00
Jonas Devlieghere
e761b6b4c5 [lldb] (Temporarily) disable vfork-follow-parent-wp.test on Darwin
The test is failing on GreenDragon. Pinged Michał in D98822.
2021-04-08 15:05:27 -07:00
Michał Górny
d01bff8cbd [lldb] [test] Skip clone() tests on Linux/aarch64 2021-04-08 20:03:45 +02:00
Michał Górny
a345419ee0 [lldb] [Process] Watch for fork/vfork notifications
Watch for fork(2)/vfork(2) (also fork/vfork-style clone(2) on Linux)
notifications and explicitly detach the forked child process, and add
initial tests for these cases.  The code covers FreeBSD, Linux
and NetBSD process plugins.  There is no new user-visible functionality
provided -- this change lays foundations over subsequent work on fork
support.

Differential Revision: https://reviews.llvm.org/D98822
2021-04-08 18:49:50 +02:00
Greg Clayton
2d733923b8 Fix "image lookup --address" Summary results for inline functions.
Inline callstacks were being incorrectly displayed in the results of "image lookup --address". The deepest frame wasn't displaying the line table line entry, it was always showing the inline information's call file and line on the previous frame. This is now fixed and has tests to make sure it doesn't regress.

Differential Revision: https://reviews.llvm.org/D98761
2021-04-01 11:36:26 -07:00
Jonas Devlieghere
d1828937ed [lldb] Remove references to LLDB_CAPTURE_REPRODUCER
Remove the remaining references to LLDB_CAPTURE_REPRODUCER. I removed
the functionality in an earlier commit but forgot that there was a
corresponding test and logic to unset it in our test suite.
2021-03-31 21:42:00 -07:00
Jonas Devlieghere
e3d3327edb [lldb] Remove reproducer from previous test run 2021-03-30 10:11:20 -07:00
Raphael Isemann
3c95bdf9fa [lldb] Don't search for system specific strings in assert.test
Commit 6bc1e69de270db8d7191200f54158e4192f997ba changed the search string
to also check for the generated strings that surround the plain assert:

    Assertion `false && "lldb-test assert"' failed
                                         ^^^^^^^^^

This causes the test to fail on setups where the generated assert message
looks different. E.g., on macOS the generated message looks like this:

    Assertion failed: (false && "lldb_assert failed"), function lldb_assert

This reverts the old behaviour of just checking for the actual string we
have inside LLDB.
2021-03-29 10:46:14 +02:00
Jan Kratochvil
6bc1e69de2 [lldb] Fix Error/assert.test regression with symbols
LLDB on Linux built with symbols is showing this error.
Without symbols it still PASSes:
  lldb-test: .../lldb/source/Utility/LLDBAssert.cpp:29: void lldb_private::lldb_assert(bool, const char *, const char *, const char *, unsigned int): Assertion `false && "lldb_assert failed"' failed.

With symbols it FAILs:
  lldb-test: .../lldb/tools/lldb-test/lldb-test.cpp:1086: int opts::assert::lldb_assert(lldb_private::Debugger &): Assertion `false && "lldb-test assert"' failed.

Differential Revision: https://reviews.llvm.org/D99462
2021-03-29 08:16:43 +02:00
Pavel Labath
22e2d117d3 [lldb] Really fix dwarf5-debug_line-file-index.s
It's not enough the change the comment -- one has to actually change the
constant before it. :/
2021-03-26 17:26:44 +01:00
Jonas Devlieghere
eb26afbafe Re-land "[lldb] Make the API, Shell and Unit tests independent lit test suites"
The commit got reverted because the tests were being run twice because
of the overlapping test_exec_root. Pavel has since fixed that in
8248dd91d7f042893d4a605e98d19cb1b89a44d4.
2021-03-22 14:36:43 -07:00
Pavel Labath
d9643af119 [lldb] Re-disable dwarf5-debug_line-file-index.s
The fix in 10d54e2f did not work.
2021-03-22 16:29:06 +01:00
Pavel Labath
10d54e2f8d [lldb] Attempt to fix dwarf5-debug_line-file-index.s
The file contained bogus input - the DIE list was not properly
terminated. This should not cause a crash, but it seems it was crashing
at least on linux arm and x86 windows.
2021-03-22 15:27:25 +01:00
Pavel Labath
8248dd91d7 [lldb] Fix test_exec_root of API tests
lit has grown a feature where it stores the runtimes of all tests.
Normally, these times should be stored in the build directory, but
because our API tests have set test_exec_root to point to the source
tree, it has ended up polluting our checkout and led to the
.lit_test_times.txt being committed to the repository.

Delete this file, and adjust the exec root of API tests. I've also
needed to adjust the root of Shell tests, in order to avoid the two
overlapping.
2021-03-22 15:15:48 +01:00
Muhammad Omair Javaid
89aab750b0 [LLDB] XFAIL dwarf5-debug_line-file-index.s on arm-linux
Tests dwarf5-debug_line-file-index.s fails on arm-linux-gnueabihf.
Bug # 49678 has been filed against it.
2021-03-22 17:06:53 +05:00
Kim-Anh Tran
68dafe40a6 [lldb] Use CompileUnit::ResolveSymbolContext in SymbolFileDWARF
SymbolFileDWARF::ResolveSymbolContext is currently unaware that in DWARF5 the primary file is specified at file index 0. As a result it misses to correctly resolve the symbol context for the primary file when DWARF5 debug data is used and the primary file is only specified at index 0.

This change makes use of CompileUnit::ResolveSymbolContext to resolve the symbol context. The ResolveSymbolContext in CompileUnit has been previously already updated to reflect changes in DWARF5
and contains a more readable version. It can resolve more, but will also do a bit more work than
SymbolFileDWARF::ResolveSymbolContext (getting the Module, and going through SymbolFileDWARF::ResolveSymbolContextForAddress), however, it's mostly directed by $resolve_scope
what will be resolved, and ensures that code is easier to maintain if there's only one path.

Reviewed By: labath

Differential Revision: https://reviews.llvm.org/D98619
2021-03-22 08:44:16 +01:00
Jonas Devlieghere
e76b86642f Revert "[lldb] Make the API, Shell and Unit tests independent lit test suites"
This reverts commit 6c52d4fd4c24a0cf738e44516ca8378d65dcf019.
2021-03-19 17:57:26 -07:00
Jonas Devlieghere
cdac60107d [lldb] Update assert.test to be less strict
Be less strict when checking for the assert substring.
2021-03-19 14:31:56 -07:00
Jonas Devlieghere
e089b5e9e1 [lldb] Call os_log_fault on lldb_assert
Call `os_log_fault` when an lldb assert fails. We piggyback off
`LLVM_SUPPORT_XCODE_SIGNPOSTS`, which also depends on `os_log`, to avoid
having to introduce another CMake check and corresponding define.

This patch also adds a small test using lldb-test that verifies we abort
with a "regular" assertion when asserts are enabled.

Differential revision: https://reviews.llvm.org/D98987
2021-03-19 14:23:50 -07:00
Jonas Devlieghere
6c52d4fd4c [lldb] Make the API, Shell and Unit tests independent lit test suites
Make the API, Shell and Unit tests independent lit test suites. This
allows us to specify different dependencies and skip rebuilding all the
unit test (which is particularly expensive) when running check-lldb-api
or check-lldb-shell.

This does not change the autogenerated targets such as
check-lldb-shell-driver or the top level check-lldb target, which all
continue to work as before.

Differential revision: https://reviews.llvm.org/D98842
2021-03-19 11:13:46 -07:00
Pavel Labath
3d47f1f9b8 [lldb] Remove implicit_const_form_support.test
It is superseded by dwarf5-implicit-const.s (added in D98197), which tests it more thoroughly.
2021-03-11 10:47:06 +01:00
Jonas Devlieghere
cc52ea3001 [lldb] Update crashlog script for JSON changes
Update the crashlog script for changes to the JSON schema.

rdar://75122914

Differential revision: https://reviews.llvm.org/D98219
2021-03-09 10:44:34 -08:00
Jonas Devlieghere
c2d2adbce9 [lldb] Propagate XDG_CACHE_HOME environment variable to tests
This variable is used to reducing the likelihood of hitting module cache
issues in CI where different branches can potentially run on the same
machine.
2021-03-09 10:44:34 -08:00
Jonas Devlieghere
080ded7445 [lldb] Use lit.with_system_environment to propagate env variables
Use lit's with_system_environment function to propagate environment
variables to the tests. Include the usual suspects, as well as the
variables already explicitly forwarded.
2021-03-09 10:44:34 -08:00
Stefan Gränitz
2ff533cba1 [lldb][JITLoaderGDB] Test debug support in JITLink
LLVM OrcJIT is shifting from RuntimeDyld to JITLink. Starting with D96627 I am planning to add debug support. It would be great to have test coverage for it in LLDB early on.

Reviewed By: labath

Differential Revision: https://reviews.llvm.org/D96634
2021-03-09 14:10:52 +01:00
Jan Kratochvil
cf806d91d5 [lldb] Fix DWARF-5 DW_FORM_implicit_const (used by GCC)
Differential Revision: https://reviews.llvm.org/D98197
2021-03-09 10:23:05 +01:00
Jan Kratochvil
63abbeb6a8 [nfc] [lldb] [testsuite] Cleanup of recently added dwarf5-line-strp.s 2021-03-08 17:41:56 +01:00
Andy Yankovsky
3b47bd32f9 [lldb] Fix handling of DW_AT_decl_file according to D91014 (attempt #2)
Apply changes from https://reviews.llvm.org/D91014 to other places where DWARF entries are being processed.

Test case is provided by @jankratochvil.
The test is marked to run only on x64 and exclude Windows and Darwin, because the assembly is not OS-independent.

(First attempt https://reviews.llvm.org/D96778 broke the build bots)

Reviewed By: jankratochvil

Differential Revision: https://reviews.llvm.org/D97765
2021-03-03 10:27:35 +01:00