Commit Graph

13216 Commits

Author SHA1 Message Date
Igor Kudrin f13ce15d44 [DebugInfo] Rename getOffset() to getContribution(). NFC.
The old name was a bit misleading because the functions actually return
contributions to the corresponding sections.

Differential revision: https://reviews.llvm.org/D77302
2020-04-03 14:15:53 +07:00
Shivam Mittal 51b3874629 Convert for loops to entry-based iteration
Summary: Convert index-based loops marked TODO in CommandObjectSettings and CommandObjectTarget to entry-based.

Reviewers: labath

Reviewed By: labath

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D76729
2020-04-02 18:56:29 +02:00
scentini 183fba635d Add OMPIterator case in switch statement to silence warnings 2020-04-02 16:16:11 +02:00
Ed Maste 55e32e92cd [lldb] update eArgTypeScriptLang description to mention lua
--script-language python and --script-language lua are both valid now.

Reviewed by:	JDevlieghere

Differential Revision:	https://reviews.llvm.org/D77241
2020-04-02 09:43:01 -04:00
Pavel Labath 451741a9d7 [lldb] Change Communication::SetConnection to take a unique_ptr
The function takes ownership of the object. This makes that explicit,
and avoids unowned pointers floating around.
2020-04-02 14:42:25 +02:00
Pavel Labath 62be83463a Recommit "[lldb] Fix TestSettings.test_pass_host_env_vars on windows"
This patch was reverted because it introduced a failure in
TestHelloWorld.py. The reason for that was running "ls" shell command
failed as it was evaluated in an environment with an empty path. This
has now been fixed with D77123, which ensures that all shell commands
inherit the host environment, so this patch should be safe to recommit.

The original commit message was:

A defensive check in ProcessLauncherWindows meant that we would never
attempt to launch a process with a completely empty environment -- the
host environment would be used instead. Instead, I make the function add
an extra null wchar_t at the end of an empty environment. The
documentation on this is a bit fuzzy, but it seems to be what is needed
to make windows accept these kinds of environments.

Reviewers: amccarth, friss

Differential Revision: https://reviews.llvm.org/D76835
2020-04-02 11:52:56 +02:00
Ed Maste af1b7d06d9 Correct copy-pasteo in lua script language description 2020-04-02 00:12:24 -04:00
Adrian Prantl 32672b877d Revert "Preserve the owning module information from DWARF in the synthesized AST"
This reverts commit 4354dfbdf5 while investigating bot fallout.
2020-04-01 18:58:11 -07:00
Adrian Prantl 4354dfbdf5 Preserve the owning module information from DWARF in the synthesized AST
Types that came from a Clang module are nested in DW_TAG_module tags
in DWARF. This patch recreates the Clang module hierarchy in LLDB and
sets the owning module information accordingly. My primary motivation
is to facilitate looking up per-module APINotes for individual
declarations, but this likely also has other applications.

rdar://problem/59634380

Differential Revision: https://reviews.llvm.org/D75488
2020-04-01 17:46:02 -07:00
Vedant Kumar f203100ebe Reapply: [Host.mm] Check for the right macro instead of inlining it
Previously, this was reverted in bf65f19b becuase it checked whether
TARGET_OS_EMBEDDED is defined, but that macro is always defined.

Update the condition to check that TARGET_OS_OSX is true.
2020-04-01 15:23:07 -07:00
Walter Erquinigo 30350c2541 [source maps] Ensure all valid source maps are added instead of failing with the first invalid one
Summary:
Several lldb-vscode users have noticed that when a source map rule is invalid (because a folder doesn't exist anymore), the rest of the source maps from their configurations are not applied.
This happens because lldb-vscode executes a single "settings set target.source-map" command with all the source maps and LLDB processes them one by one until one fails.

Instead of doing this, we can process in LLDB all the source map rules and apply the valid ones instead of failing fast.

Reviewers: clayborg, labath, kusmour, aadsm

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D77186
2020-04-01 13:01:40 -07:00
Martin Storsjö aa786b881f [lldb] [PECOFF] Only use PECallFrameInfo on the one supported architecture
The RuntimeFunction struct, which PECallFrameInfo interprets, has a
different layout and differnet semantics on all architectures.

Differential Revision: https://reviews.llvm.org/D77000
2020-04-01 12:39:21 +03:00
Pavel Labath 0ec88d031a [lldb] Inherit host environment when running shell commands
Summary:
On most hosts we were running shell commands with an empty environment.
The only exception was windows, which was inheriting the host enviroment
mostly by accident.

Running the commands in an empty environment does not sound like a
sensible default, so this patch changes Host::RunShellCommand to inherit
the host environment.  This impacts both commands run via
SBPlatform::Run (in case of host platforms), as well as the "platform
shell" CLI command.

Reviewers: jingham, friss

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D77123
2020-04-01 11:20:13 +02:00
Adrian Prantl ec11c5615a Replace uint32_t with typedef (NFC) 2020-03-31 14:58:25 -07:00
Adrian Prantl 00efcd6fff Add a Type::Payload typedef. (NFC)
This addresses review feedback from Raphael that I missed before
landing the change that introduced the payload field.
2020-03-31 14:32:53 -07:00
Jonas Devlieghere 015c6cd475 Re-land "[lldb/Reproducers] Always collect the whole dSYM in the reproducer"
The FileCollector in LLDB collects every files that's used during a
debug session when capture is enabled. This ensures that the reproducer
only contains the files necessary to reproduce. This approach is not a
good fit for the dSYM bundle, which is a directory on disk, but should
be treated as a single unit.

On macOS LLDB have automatically find the matching dSYM for a binary by
its UUID. Having a incomplete dSYM in a reproducer can break debugging
even when reproducers are disabled.

This patch adds a was to specify a directory of interest to the
reproducers. It is called from SymbolVendorMacOSX with the path of the
dSYMs used by LLDB.

Differential revision: https://reviews.llvm.org/D76672
2020-03-31 12:47:12 -07:00
Benjamin Kramer e8f13f4f62 Replace std::string::find == 0 with StringRef::startswith
This is both more readable and faster. Found by clang-tidy's
abseil-string-find-startswith.
2020-03-31 21:01:09 +02:00
Adrian Prantl 7b06cb4523 Add an opque payload field to lldb::Type (NFC).
Differential Revision: https://reviews.llvm.org/D75562
2020-03-31 11:14:12 -07:00
Davide Italiano 75cfd38220 Revert "[lldb/Reproducers] Always collect the whole dSYM in the reproducer"
This reverts commit 38ddb49e52 as it
breaks the macOS bots.
2020-03-31 10:56:02 -07:00
Jonas Devlieghere 5c2bf577dc [lldb/API] Add missing reproducer instrumentation to GetHostPlatform.
SBPlatform::GetHostPlatform was missing the reproducer instrumentation
macros. Fixed by running lldb-instr on SBPlatform.cpp:

$ ./bin/lldb-instr ../llvm-project/lldb/source/API/SBPlatform.cpp
2020-03-31 10:45:25 -07:00
Med Ismail Bennani f3a7d790df
[lldb/DWARF] Fix evaluator crash when accessing empty stack.
This patch fixes a crash that happens on the DWARF expression evaluator
when trying to access the top of the stack while it's empty.

rdar://60512489

Differential Revision: https://reviews.llvm.org/D77108

Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
2020-03-31 17:44:57 +02:00
Med Ismail Bennani e4a778052e Revert "[lldb/DWARF] Fix evaluator crash when accessing empty stack."
This reverts commit e26eece1e2.
2020-03-31 17:44:17 +02:00
Med Ismail Bennani e26eece1e2 [lldb/DWARF] Fix evaluator crash when accessing empty stack.
This patch fixes a crash that happens on the DWARF expression evaluator
when trying to access the top of the stack while it's empty.

Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
2020-03-31 17:28:15 +02:00
Shivam Mittal d30e9ad345 Correct the duplicate pragma marks in CommandObjectTarget.cpp
Summary: Resolve the two duplicated pragma marks in lldb/source/Commands/CommandObjectTarget.cpp

Reviewers: teemperor

Reviewed By: teemperor

Subscribers: teemperor, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D77096
2020-03-31 11:16:40 +02:00
Kai Wang 581ba35291 [RISCV] ELF attribute section for RISC-V.
Leverage ARM ELF build attribute section to create ELF attribute section
for RISC-V. Extract the common part of parsing logic for this section
into ELFAttributeParser.[cpp|h] and ELFAttributes.[cpp|h].

Differential Revision: https://reviews.llvm.org/D74023
2020-03-31 16:16:19 +08:00
Jonas Devlieghere 38ddb49e52 [lldb/Reproducers] Always collect the whole dSYM in the reproducer
The FileCollector in LLDB collects every files that's used during a
debug session when capture is enabled. This ensures that the reproducer
only contains the files necessary to reproduce. This approach is not a
good fit for the dSYM bundle, which is a directory on disk, but should
be treated as a single unit.

On macOS LLDB have automatically find the matching dSYM for a binary by
its UUID. Having a incomplete dSYM in a reproducer can break debugging
even when reproducers are disabled.

This patch adds a was to specify a directory of interest to the
reproducers. It is called from SymbolVendorMacOSX with the path of the
dSYMs used by LLDB.

Differential revision: https://reviews.llvm.org/D76672
2020-03-30 15:16:50 -07:00
Davide Italiano 06bb7df81c Recommit "[lldb] Make Fix-Its also apply to top-level expressions""
This reverts commit fe5cb1c25f as it
 was not responsible for breaking the bots. Sorry.
2020-03-30 14:24:06 -07:00
Davide Italiano 50f7153ddb Revert "[lldb][NFC] Refactor Fix-It filter for warnings"
This reverts commit 11a5caee2a as
it broke the bots.
2020-03-30 14:12:11 -07:00
Davide Italiano 10f633db86 [TypeSystemClang] Add missing case in a switch. NFC'ish. 2020-03-30 13:53:53 -07:00
Davide Italiano fe5cb1c25f Revert "[lldb] Make Fix-Its also apply to top-level expressions"
This reverts commit 83c81c0a46 as
it broke the macOS lldb bots.
2020-03-30 13:23:58 -07:00
Pavel Labath 37889786b0 Revert "[lldb] Fix TestSettings.test_pass_host_env_vars on windows"
This reverts commit because of test failures in TestHelloWorld.

It seems that this test (specifically running "ls" as a platform shell
command) depended on the implicit passing of the host environment.

The fix should be fairly simple (inherit the environment explicitly),
but it may take me a while to figure where exactly to do that. Revert
while I am figuring that out.
2020-03-30 17:32:42 +02:00
Benjamin Kramer 3806b38045 [LLDB] Initialize temporary token
Found by msan.
2020-03-30 16:12:50 +02:00
Pavel Labath 908f78f3c1 [lldb] Fix TestSettings.test_pass_host_env_vars on windows
Summary:
A defensive check in ProcessLauncherWindows meant that we would never
attempt to launch a process with a completely empty environment -- the
host environment would be used instead. Instead, I make the function add
an extra null wchar_t at the end of an empty environment. The
documentation on this is a bit fuzzy, but it seems to be what is needed
to make windows accept these kinds of environments.

Reviewers: amccarth, friss

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D76835
2020-03-30 16:06:52 +02:00
Pavel Labath 7b00eeb53d [lldb] Fix another crash in covariant type handling
Summary:
D73024 seems to have fixed one set crash, but it introduced another.
Namely, if a class contains a covariant method returning itself, the
logic in MaybeCompleteReturnType could cause us to attempt a recursive
import, which would result in an assertion failure in
clang::DeclContext::removeDecl.

For some reason, this only manifested itself if the class contained at
least two member variables, and the class itself was imported as a
result of a recursive covariant import.

This patch fixes the crash by not attempting to import classes which are
already completed in MaybeCompleteReturnType. However, it's not clear to
me if this is the right fix, or if this should be handled automatically
by functions lower in the stack.

Reviewers: teemperor, shafik

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D76840
2020-03-30 16:00:21 +02:00
Raphael Isemann 11a5caee2a [lldb][NFC] Refactor Fix-It filter for warnings
LLDB only automatically applies Fix-Its from errors, but not from warnings.

Currently we only store Fix-Its from errors and then later apply all Fix-Its
we stored. This moves the filter to the application phase, so that we now
store *all* Fix-Its but only apply Fix-Its from errors later on.

This is NFC preparation for an upcoming patch.
2020-03-30 14:01:16 +02:00
Raphael Isemann 83c81c0a46 [lldb] Make Fix-Its also apply to top-level expressions
Summary:
Currently top-level expressions won't automatically get Fix-Its applied. The reason
for that is that we only set the `m_fixed_text` member if we have a wrapping
source code (I.e. `m_source_code` is not zero and is wrapping some expressions).

This patch just always sets `m_fixed_text` to get this working.

Reviewers: labath, jingham

Reviewed By: labath

Subscribers: JDevlieghere

Differential Revision: https://reviews.llvm.org/D77042
2020-03-30 11:50:57 +02:00
Raphael Isemann 767a97b223 [lldb][NFC] Cleanup Fix-It code 2020-03-30 11:02:44 +02:00
Jason Molenda f0a5af906b Merge in symbols from Mach-O dyld trie to the symbol table
In ObjectFileMachO we construct the symbol table from multiple
sources -- primarily the binary's nlist records, but when the nlist
symbols have been stripped, we would augment those with function
start address from the LC_FUNCTION_STARTS or eh_frame.  This patch
adds another source of symbols - the exported symbols that the
dynamic linker, dyld, uses at runtime from its trie structure.  This
provides us names and addresses for these functions/data.

This patch removes the code from ParseSymtab that would reject an
empty symbol table / nlist source.  It adds a new symbols_added
set which tracks the address of every symbol we've added to the
symtab.  We add symbols in most-information-ful order, and before
adding a symbol from less-informational-ful source (e.g.
LC_FUNCTION_STARTS with no function name), we check if that symbol
has already been added.

On targets with thumb code generation, instead of using the 0th bit
in these addresses in FunctionStarts (or now the trie entries), we
use the data field of FunctionStarts (formerly used to track if the
func_start should be added) and a flag for the trie entries to
encode this, and only store the actual addresses in the symbols_seen
and these vectors.

<rdar://problem/50791451>

Differential revision: https://reviews.llvm.org/D76758
2020-03-27 22:53:15 -07:00
shafik 8016d61e3c [LLDB] CPlusPlusNameParser does not handles templated operator< properly
CPlusPlusNameParser is used in several places on of them is during IR execution and setting breakpoints to pull information C++ like the basename, the context and arguments.

Currently it does not handle templated operator< properly, because of idiosyncrasy is how clang generates debug info for these cases.

It uses clang::Lexer which will tokenize operator<<A::B> into:

tok::kw_operator
tok::lessless
tok::raw_identifier

Later on the parser in ConsumeOperator() does not handle this case properly and we end up failing to parse.

Differential Revision: https://reviews.llvm.org/D76168
2020-03-27 14:46:39 -07:00
Adrian Prantl 974fbd9b81 Unbreak LLDB tests after 96023917e6f
by teaching LLDB to apply DW_AT_comp_dir to the DW_AT_LLVM_include path.
2020-03-27 14:23:30 -07:00
Jonas Devlieghere 457eb05db6 [lldb/PlatformMacOSX] Re-implement GetDeveloperDirectory
GetDeveloperDirectory returns a const char* which is NULL when we cannot
find the developer directory. This crashes in
PlatformDarwinKernel::CollectKextAndKernelDirectories because we're
unconditionally assigning it to a std::string. Coincidentally I just
refactored a bunch of code in PlatformMacOSX so instead of a ad-hoc fix
I've reimplemented the method based on GetXcodeContentsDirectory.

The change is mostly NFC. Obviously it fixes the crash, but it also
removes support for finding the Xcode directory through he legacy
$XCODE_SELECT_PREFIX_DIR/usr/share/xcode-select/xcode_dir_path.

Differential revision: https://reviews.llvm.org/D76938
2020-03-27 12:36:56 -07:00
shafik 00c8120acb [LLDB] Fix handling of bit-fields when there is a base class when parsing DWARF
When parsing DWARF and laying out bit-fields we currently don't take into account whether we have a base class or not.
Currently if the first field is a bit-field but the bit offset is due a field we inherit from a base class we currently
treat it as an unnamed bit-field and therefore add an extra field.

This fix will not check if we have a base class and assume that this offset is due to members we are inheriting from the base.
We are currently seeing asserts during codegen when debugging clang::DiagnosticOptions.

This assumption will fail in the case where the first field in the derived class in an unnamed bit-field. Fixing the first field
being an unnamed bit-field looks like it will require a larger change since we will need a way to track or discover the last field offset of the bases(s).

Differential Revision: https://reviews.llvm.org/D76808
2020-03-27 11:28:07 -07:00
Pavel Labath e22f0dabcf [lldb/breakpad] Fix register resolution on arm
In breakpad, only x86 (and mips) registers have a leading '$' in their
names. Arm architectures use plain register names.

Previously, lldb was assuming all registers have a '$'. Fix the code to
match the (unfortunately, inconsistent) reality.
2020-03-26 13:51:27 +01:00
Emre Kultursay 57be22fa17 [LLDB] Fix parsing of IPv6 host:port inside brackets
Summary:
When using IPv6 host:port pairs, typically the host is put inside
brackets, such as [2601🔢...:0213]:5555, and the UriParser
can handle this format.

However, the Android infrastructure in LLDB assumes an additional
brackets around the host:port pair, such that the entire host:port
string can be treated as the host (which is used as an Android Serial
Number), and UriParser cannot handle multiple brackets. Parsing
inputs with such extra backets requires searching the closing bracket
from the right.

Test: BracketedHostnameWithPortIPv6 covers the case mentioned above

Reviewers: #lldb, labath

Reviewed By: labath

Subscribers: kwk, shafik, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D76736
2020-03-26 11:35:54 +01:00
Shivam Mittal daed98e5b5 Convert CommandObjectCommands functions to return StringRefs
Reviewers: jingham, aprantl, labath, jankratochvil

Reviewed By: labath, jankratochvil

Subscribers: labath, jankratochvil, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D76569
2020-03-26 11:20:38 +01:00
Raphael Isemann 7754b652b3 [lldb][NFC] lldb_assert->lldbassert in ClangExpressionParser
lldbassert is the macro that takes care of passing along line/file/function
to the lldb_assert function. Let's call that instead of manually calling the
function.
2020-03-25 14:10:48 +01:00
Davide Italiano 3e11d84d9f [Darwin] Add another hint to find the kernel. NFC. 2020-03-24 13:04:36 -07:00
Vedant Kumar 03e29e2c19 [lldb/DWARF] Reland: Use DW_AT_call_pc to determine artificial frame address
Reland with changes: the test modified in this change originally failed
on a Debian/x86_64 builder, and I suspect the cause was that lldb looked
up the line location for an artificial frame by subtracting 1 from the
frame's address. For artificial frames, the subtraction must not happen
because the address is already exact.

---

lldb currently guesses the address to use when creating an artificial
frame (i.e., a frame constructed by determining the sequence of (tail)
calls which must have happened).

Guessing the address creates problems -- use the actual address provided
by the DW_AT_call_pc attribute instead.

Depends on D76336.

rdar://60307600

Differential Revision: https://reviews.llvm.org/D76337
2020-03-24 12:54:40 -07:00
Raphael Isemann 0ccc4de42e [lldb] Always log if acquiring packet sequence mutex fails
Summary:
Currently we only log in debug builds but I don't see why we would do this as this is neither
expensive and seems useful.

I looked into the git history of this code and it seems originally there was also an assert here
and the logging here was the #else branch branch for non-Debug builds.

Reviewers: #lldb, labath

Reviewed By: labath

Subscribers: JDevlieghere

Differential Revision: https://reviews.llvm.org/D76698
2020-03-24 20:24:50 +01:00
Vedant Kumar 0a9b91c390 Revert "[lldb/DWARF] Use DW_AT_call_pc to determine artificial frame address"
This reverts commit 6905394d15. The
changed test is failing on Debian/x86_64, possibly because lldb is
subtracting an offset from the DW_AT_call_pc address used for the
artificial frame:

http://lab.llvm.org:8011/builders/lldb-x86_64-debian/builds/7171/steps/test/logs/stdio

/home/worker/lldb-x86_64-debian/lldb-x86_64-debian/llvm-project/lldb/test/API/functionalities/tail_call_frames/unambiguous_sequence/main.cpp:6:17: error: CHECK-NEXT: expected string not found in input
 // CHECK-NEXT: frame #1: 0x{{[0-9a-f]+}} a.out`func3() at main.cpp:14:3 [opt] [artificial]
                ^
<stdin>:3:2: note: scanning from here
 frame #1: 0x0000000000401127 a.out`func3() at main.cpp:13:4 [opt] [artificial]
2020-03-24 12:22:12 -07:00