Commit Graph

289 Commits

Author SHA1 Message Date
Pavel Labath
8f6ee17f22 [lldb] Warn when we fail to find dwo/dwp files
This ensures that the user is aware that many commands will not work
correctly.

We print the warning only once (per module) to avoid spamming the user
with potentially thousands of error messages.

Differential Revision: https://reviews.llvm.org/D120892
2022-03-09 14:31:17 +01:00
Zequan Wu
15983c28aa [LLDB] Dump valid ranges of variables
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
2022-03-02 13:44:19 -08:00
Pavel Labath
4cd8877a34 [lldb/test] Fix gnu-style-compression.yaml
In the rush to get the bot green, I did not realize I was building the
file with -gsplit-dwarf, and therefore the yaml ended up referring to a
file I did not check it.

This rebuilds the file without split dwarf.
2022-01-27 10:23:21 +01:00
Pavel Labath
aaa9f40e3f [lldb/test] Replace gnu-style-compression.cpp with a yaml file
In D117744, llvm removed writing support for this format, breaking the
test. We may eventually want to remove reading support as well, but for
now I have converted the test to a yaml file to maintain coverage.
2022-01-27 10:05:05 +01:00
David Blaikie
8b280df504 Rough guess at fixing lldb tests to handle Clang defaulting to DWARFv5 2022-01-23 21:24:25 -08:00
Zequan Wu
f00cd23cae Revert "Revert "[LLDB][NativePDB] Add support for inlined functions""
This reland 945aa520ef with fixes.

This reverts commit 10bc3362a1.
2022-01-13 14:00:24 -08:00
Stella Stamenova
10bc3362a1 Revert "[LLDB][NativePDB] Add support for inlined functions"
This reverts commit 945aa520ef.

This commit broke the windows lldb bot.
2022-01-12 08:53:19 -08:00
Zequan Wu
945aa520ef [LLDB][NativePDB] Add support for inlined functions
This adds inline function support to NativePDB by parsing S_INLINESITE records
to retrieve inlinee line info and add them into line table at `ParseLineTable`.

Differential Revision: https://reviews.llvm.org/D116845
2022-01-11 16:10:39 -08:00
Dave Lee
268a42d697 [lldb] Require x86 support for dwo-relative-path test 2022-01-09 21:35:32 -08:00
Zequan Wu
d5b6e30ed3 [LLDB][Clang] add AccessSpecDecl for methods and fields in RecordType
This allows access type be printed when running `lldb-test -dump-ast` and
`lldb-test -dump-clang-ast`.

Differential Revision: https://reviews.llvm.org/D115062
2022-01-04 13:50:24 -08:00
Stella Stamenova
f4abf28c0a [lldb] Update the PDB tests to pass with the VS2019 toolset
The pdb lldb tests do not work correctly with both the VS2019 and VS2017 toolsets at the moment. This change updates several of the tests to work with both toolsets. Unfortunately, this makes the tests suboptimal for both toolsets, but we can update them to be better for VS2019 once we officially drop VS2017. This change is meant to bridge the gap until the update happens, so that the buildbots can work with either toolset.

Differential Revision: https://reviews.llvm.org/D115482
2021-12-14 13:06:07 -08:00
Zequan Wu
a3a8ed33a1 [LLDB][NativePDB] Fix function decl creation for class methods
This is a split of D113724. Calling `TypeSystemClang::AddMethodToCXXRecordType`
to create function decls for class methods.

Differential Revision: https://reviews.llvm.org/D113930
2021-12-07 10:41:28 -08:00
Zequan Wu
fe270ab061 [LLDB][NativePDB] fix find-functions.cpp failure on windows bots (2) 2021-11-29 11:06:06 -08:00
Zequan Wu
34d02fada2 [LLDB][NativePDB] fix find-functions.cpp failure on windows bots 2021-11-29 10:05:09 -08:00
Zequan Wu
22ced33a2f [LLDB][NativePDB] Allow find functions by full names
I don't see a reason why not to. If we allows lookup functions by full names,
I can change the test case in D113930 to use `lldb-test symbols --find=function --name=full::name --function-flags=full ...`,
though the duplicate method decl prolem is still there for `lldb-test symbols --dump-ast`.
That's a seprate bug, we can fix it later.

Differential Revision: https://reviews.llvm.org/D114467
2021-11-23 17:57:05 -08:00
Zequan Wu
b6d3535230 [LLDB][NativePDB] Fix local-variables.cpp failure on windows bots 2021-11-15 16:14:55 -08:00
Matheus Izvekov
c9e46219f3 [clang] retain type sugar in auto / template argument deduction
This implements the following changes:
* AutoType retains sugared deduced-as-type.
* Template argument deduction machinery analyses the sugared type all the way
down. It would previously lose the sugar on first recursion.
* Undeduced AutoType will be properly canonicalized, including the constraint
template arguments.
* Remove the decltype node created from the decltype(auto) deduction.

As a result, we start seeing sugared types in a lot more test cases,
including some which showed very unfriendly `type-parameter-*-*` types.

Signed-off-by: Matheus Izvekov <mizvekov@gmail.com>

Reviewed By: rsmith, #libc, ldionne

Differential Revision: https://reviews.llvm.org/D110216
2021-11-15 23:07:45 +01:00
Zequan Wu
f17404a733 [LLDB][NativePDB] Fix image lookup by address
`image lookup -a ` doesn't work because the compilands list is always empty.
Create CU at given index if doesn't exit.

Differential Revision: https://reviews.llvm.org/D113821
2021-11-15 12:30:23 -08:00
Matheus Izvekov
6438a52df1 Revert "[clang] retain type sugar in auto / template argument deduction"
This reverts commit 4d8fff477e.
2021-11-15 00:29:05 +01:00
Matheus Izvekov
4d8fff477e [clang] retain type sugar in auto / template argument deduction
This implements the following changes:
* AutoType retains sugared deduced-as-type.
* Template argument deduction machinery analyses the sugared type all the way
down. It would previously lose the sugar on first recursion.
* Undeduced AutoType will be properly canonicalized, including the constraint
template arguments.
* Remove the decltype node created from the decltype(auto) deduction.

As a result, we start seeing sugared types in a lot more test cases,
including some which showed very unfriendly `type-parameter-*-*` types.

Signed-off-by: Matheus Izvekov <mizvekov@gmail.com>

Reviewed By: rsmith

Differential Revision: https://reviews.llvm.org/D110216
2021-11-13 03:35:22 +01:00
Adrian Kuegel
c30c37c00a Revert "[lldb] fix test expectation broken by clang fix at D110216"
This reverts commit 5508595217.
The patch it depends on is reverted.
2021-11-12 13:21:30 +01:00
Matheus Izvekov
5508595217 [lldb] fix test expectation broken by clang fix at D110216
Signed-off-by: Matheus Izvekov <mizvekov@gmail.com>

Differential Revision: https://reviews.llvm.org/D113722
2021-11-12 01:47:29 +01:00
Zequan Wu
cc9ced0ed4 [LLDB][Breakpad] Make lldb understand INLINE and INLINE_ORIGIN records in breakpad.
Teach LLDB to understand INLINE and INLINE_ORIGIN records in breakpad.
They have the following formats:
```
INLINE inline_nest_level call_site_line call_site_file_num origin_num [address size]+
INLINE_ORIGIN origin_num name
```
`INLNIE_ORIGIN` is simply a string pool for INLINE so that we won't have
duplicated names for inlined functions and can show up anywhere in the symbol
file.
`INLINE` follows immediately after `FUNC` represents the ranges of momery
address that has functions inlined inside the function.

Differential Revision: https://reviews.llvm.org/D113330
2021-11-10 11:20:32 -08:00
Zequan Wu
fbf665a008 [LLDB][Breakpad] Create a function for each compilation unit.
Since every FUNC record (in breakpad) is a compilation unit, creating the
function for the CU allows `ResolveSymbolContext` to resolve
`eSymbolContextFunction`.

Differential Revision: https://reviews.llvm.org/D113163
2021-11-10 10:51:16 -08:00
Adrian Prantl
68a4d179c2 Use yaml2obj instead of relying on invoking the Darwin system assembler. 2021-11-09 10:47:26 -08:00
Adrian Prantl
56f7da6e0d Add a requires line to test. 2021-11-09 10:16:03 -08:00
Adrian Prantl
c9881c7d99 Support looking up absolute symbols
The Swift stdlib uses absolute symbols in the dylib to communicate
feature flags to the process. LLDB's expression evaluator needs to be
able to find them. This wires up absolute symbols so they show up in
the symtab lookup command, which is also all that's needed for them to
be visible to the expression evaluator JIT.

rdar://85093828

Differential Revision: https://reviews.llvm.org/D113445
2021-11-09 09:44:37 -08:00
Muhammad Omair Javaid
4c8ea90b25 [LLDB] Fix LLDB buildbots break due to --image-base
LLDB build were failing due to following two test failures:
lldb-shell :: ObjectFile/ELF/basic-info.yaml
lldb-shell :: SymbolFile/DWARF/x86/debug-types-address-ranges.s

There were caused by commit 6506907a0a
2021-10-26 12:07:16 +05:00
Pavel Labath
c1055f0919 [lldb/DWARF] Don't create lldb_private::Functions for gc'ed DW_TAG_subprograms
Front-load the first_valid_code_address check, so that we avoid creating
the function object (instead of simply refusing to use it in queries).

Differential Revision: https://reviews.llvm.org/D112310
2021-10-25 10:32:35 +02:00
David Blaikie
64f002c6d3 Follow-up fixes for aee4925507 2021-10-21 13:00:56 -07:00
David Blaikie
aee4925507 Recommit: Compress formatting of array type names (int [4] -> int[4])
Based on post-commit review discussion on
2bd8493847 with Richard Smith.

Other uses of forcing HasEmptyPlaceHolder to false seem OK to me -
they're all around pointer/reference types where the pointer/reference
token will appear at the rightmost side of the left side of the type
name, so they make nested types (eg: the "int" in "int *") behave as
though there is a non-empty placeholder (because the "*" is essentially
the placeholder as far as the "int" is concerned).

This was originally committed in 277623f4d5

Reverted in f9ad1d1c77 due to breakages
outside of clang - lldb seems to have some strange/strong dependence on
"char [N]" versus "char[N]" when printing strings (not due to that name
appearing in DWARF, but probably due to using clang to stringify type
names) that'll need to be addressed, plus a few other odds and ends in
other subprojects (clang-tools-extra, compiler-rt, etc).
2021-10-21 11:34:43 -07:00
Jaroslav Sevcik
5a3556aa55 [lldb] Add omitted abstract formal parameters in DWARF symbol files
This patch fixes a problem introduced by clang change
https://reviews.llvm.org/D95617 and described by
https://bugs.llvm.org/show_bug.cgi?id=50076#c6, where inlined functions
omit unused parameters both in the stack trace and in `frame var`
command. With this patch, the parameters are listed correctly in the
stack trace and in `frame var` command.

Specifically, we parse formal parameters from the abstract version of
inlined functions and use those formal parameters if they are missing
from the concrete version.

Differential Revision: https://reviews.llvm.org/D110571
2021-10-21 12:33:42 +02:00
Pavel Labath
ffbff6c511 [lldb/DWARF] Ignore debug info pointing to the low addresses
specifically, ignore addresses that point before the first code section.

This resurrects D87172 with several notable changes:
- it fixes a bug where the early exits in InitializeObject left
  m_first_code_address "initialized" to LLDB_INVALID_ADDRESS (0xfff..f),
  which caused _everything_ to be ignored.
- it extends the line table fix to function parsing as well, where it
  replaces a similar check which was checking the executable permissions
  of the section. This was insufficient because some
  position-independent elf executables can have an executable segment
  mapped at file address zero. (What makes this fix different is that it
  checks for the executable-ness of the sections contained within that
  segment, and those will not be at address zero.)
- It uses a different test case, with an elf file with near-zero
  addresses, and checks for both line table and function parsing.

Differential Revision: https://reviews.llvm.org/D112058
2021-10-20 11:19:30 +02:00
Raphael Isemann
7dfb139554 [lldb] Adjust udt-layout.test after MS mangling change
The demangled name no longer contains the redundant name since D111715.
2021-10-19 12:43:24 +02:00
Pavel Labath
b37efed957 [lldb] Fix PDB/compilands.test for a3939e1 2021-10-18 14:11:47 +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
Pavel Labath
ca0ce99fc8 [lldb] Print embedded nuls in char arrays (PR44649)
When we know the bounds of the array, print any embedded nuls instead of
treating them as terminators. An exception to this rule is made for the
nul character at the very end of the string. We don't print that, as
otherwise 99% of the strings would end in \0. This way the strings
usually come out the same as how the user typed it into the compiler
(char foo[] = "with\0nuls"). It also matches how they come out in gdb.

This resolves a FIXME left from D111399, and leaves another FIXME for dealing
with nul characters in "escape-non-printables=false" mode. In this mode the
characters cause the entire summary string to be terminated prematurely.

Differential Revision: https://reviews.llvm.org/D111634
2021-10-14 09:50:40 +02:00
David Blaikie
f6a561c4d6 DebugInfo: Use clang's preferred names for integer types
This reverts c7f16ab3e3 / r109694 - which
suggested this was done to improve consistency with the gdb test suite.
Possible that at the time GCC did not canonicalize integer types, and so
matching types was important for cross-compiler validity, or that it was
only a case of over-constrained test cases that printed out/tested the
exact names of integer types.

In any case neither issue seems to exist today based on my limited
testing - both gdb and lldb canonicalize integer types (in a way that
happens to match Clang's preferred naming, incidentally) and so never
print the original text name produced in the DWARF by GCC or Clang.

This canonicalization appears to be in `integer_types_same_name_p` for
GDB and in `TypeSystemClang::GetBasicTypeEnumeration` for lldb.

(I tested this with one translation unit defining 3 variables - `long`,
`long (*)()`, and `int (*)()`, and another translation unit that had
main, and a function that took `long (*)()` as a parameter - then
compiled them with mismatched compilers (either GCC+Clang, or
Clang+(Clang with this patch applied)) and no matter the combination,
despite the debug info for one CU naming the type "long int" and the
other naming it "long", both debuggers printed out the name as "long"
and were able to correctly perform overload resolution and pass the
`long int (*)()` variable to the `long (*)()` function parameter)

Did find one hiccup, identified by the lldb test suite - that CodeView
was relying on these names to map them to builtin types in that format.
So added some handling for that in LLVM. (these could be split out into
separate patches, but seems small enough to not warrant it - will do
that if there ends up needing any reverti/revisiting)

Differential Revision: https://reviews.llvm.org/D110455
2021-10-06 16:02:34 -07:00
Pavel Labath
cd6893a5a3 [lldb] Fix target-symbols-add-unwind.test for clang 7647a841
We need a different flag combination to produce .debug_frame.
2021-09-24 09:06:44 +02:00
David Blaikie
40e971a210 nullptr printing - update for a change to clang type printing that now uses "std::nullptr_t" 2021-09-21 11:50:24 -07:00
Kim-Anh Tran
ec671f3ea0 [lldb] Support .debug_rnglists.dwo sections in dwp file
This patch considers the CU index entry
when reading the .debug_rnglists.dwo section.

Reviewed By: jankratochvil

Differential Revision: https://reviews.llvm.org/D107456
2021-09-03 15:19:50 +02:00
Jan Kratochvil
e21a21a977 [lldb] Fix#2 of DW_AT_ranges DW_FORM_sec_offset not using DW_AT_rnglists_base (used by GCC)
Fix D98289 so that it works even for 2nd..nth compilation unit
(.debug_rnglists).

Reviewed By: dblaikie, ikudrin

Differential Revision: https://reviews.llvm.org/D106466
2021-08-17 22:19:16 +02:00
Raphael Isemann
7377997134 [lldb] Rework 'lldb' substitution workaround in dwarf5-lazy-dwo.c
This test is specifying the lldb log channel via `ll""db` which only really works
because the command parser ends up parsing that as `lldb`. Just putting the
channel name in quotes is enough to avoid the lldb command substitution and
doesn't rely on this weird parser behaviour.
2021-08-11 12:12:25 +02:00
Jan Kratochvil
f3932b9a0b [nfc] [lldb] Assertions for D106270 - [DWARF5] Fix offset check when using .debug_names
Skeleton vs. DWO units mismatch has been fixed in D106270. As they both
have type DWARFUnit it is a bit difficult to debug. So it is better to
make it safe against future changes.

Reviewed By: kimanh, clayborg

Differential Revision: https://reviews.llvm.org/D107659
2021-08-10 20:43:24 +02:00
Kim-Anh Tran
0dda542531 [DWARF5] Fix offset check when using .debug_names
When going through the CU entries in the name index,
make sure to compare the name entry's CU
offset against the skeleton CU's offset.

Previously there would be a mismatch, since the
wrong offset was compared, and thus no suitable
entry was found.

Reviewed By: jankratochvil

Differential Revision: https://reviews.llvm.org/D106270
2021-08-09 13:15:14 +02:00
Jaroslav Sevcik
f968bd77bb Reland "[lldb/DWARF] Only match mangled name in full-name function lookup (with accelerators)"
Summary:

In the spirit of https://reviews.llvm.org/D70846, we only return functions with
matching mangled name from Apple/DebugNamesDWARFIndex::GetFunction if
eFunctionNameTypeFull is requested.

This speeds up lookup in the presence of large amount of class methods of the
same name (a typical examples would be constructors of templates with many
instantiations or overloaded operators).

Reviewers: labath, teemperor

Reviewed By: labath, teemperor

Subscribers: aprantl, arphaman, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D73191
2021-08-04 12:50:13 +02:00
Kim-Anh Tran
0092dbcd80 [lldb] Fix lookup of .debug_loclists with split-dwarf
This patch fixes the lookup of locations in
.debug_loclists, if they are split in a .dwp file.

Mainly, we need to consider the cu index offsets.

Reviewed By: jankratochvil

Differential Revision: https://reviews.llvm.org/D107161
2021-08-04 11:36:44 +02:00
Alex Langford
d2b2ab4e1c [lldb] Further constrain a test that fails without python enabled
The test relies on the python embedded interpreter being available and
fails otherwise.
2021-08-03 11:50:36 -07:00
Eric Leese
ea9706626c [test] [lldb] Use filename instead of index in test
In some environments this test could fail if start.S has its own DWARF
CompileUnit or similar are included before the DWARF CompileUnit for the
file.

This change makes the test independent of the index of the compile unit,
instead checking the filename.

Reviewed By: herhut, jankratochvil

Differential Revision: https://reviews.llvm.org/D107300
2021-08-02 21:12:57 +02:00
Eric Leese
fb09f365ae [lldb] [DWARF-5] Be lazier about loading .dwo files
This change makes sure that DwarfUnit does not load a .dwo file until
necessary. I also take advantage of DWARF 5's guarantee that the first
support file is also the primary file to make it possible to create
a compile unit without loading the .dwo file.

Testcases now require Linux as it is needed for -gsplit-dwarf.

Review By: jankratochvil, dblaikie

Differential Revision: https://reviews.llvm.org/D100299
2021-07-31 10:45:31 +02:00