when it and the inferior process both have the same shared cache
(a conglomeration of all libraries at the same fixed address for
all processes), lldb will read data out of its own memory to speed
things up. The shared cache has a UUID, so lldb currently checks
that the UUID of its own shared cache matches that of the inferior.
This change adds one refinement to that -- it checks that the UUID
is the same and that the base address of the shared cache is the
same. And only uses its local shared cache if they are both identical.
This involved using a different style of SPI with dyld to get lldb's
shared cache load address, but it's not especially difficult.
One unattractive part of the change is that I'm using the real
underlying types of task_t and kern_return_t instead of picking
them up from mach/mach.h. The defines that get picked up there (a
lot from machine.h but others too) conflict with llvm/Support/MachO.h
even when I have mach.h included before our SafeMachO.h which
undefines most of the defines before including llvm/Support/MachO.h.
I'll need to augment the #undefs in SafeMachO.h to get this to
compile cleanly, but that'll be another day.
<rdar://problem/39868238>
llvm-svn: 331497
This is a change that only affects Swift and is NFC for the language
plugins on llvm.org. In Swift, we can have global variables with a
location such as DW_OP_addr <addr> DW_OP_deref. The DWARF expression
evaluator doesn't know how to apply a DW_OP_deref to a file address,
but at the very end we convert the file address into a load address.
This patch moves the file->load address conversion to right after the
result of the DW_OP_addr is pushed onto the stack so that a subsequent
DW_OP_deref (and potentially other operations) can be interpreted.
rdar://problem/39767528
Differential revision: https://reviews.llvm.org/D46362
llvm-svn: 331492
This patch restructures part of LLDB's testing configuration:
1. I moved the test dependencies up the chain so every dotest dependency
becomes a lit dependency as well. It wouldn't make sense for dotest to
have other dependencies when it's being run by lit. Lit on the other
hand can still specify extra dependencies.
2. I replaced as much generator expressions with variables as possible.
This is consistent with the rest of LLVM and doesn't break generators
that support multiple targets (MSVC, Xcode). This wasn't a problem
before, but now we need to expand the dotest arguments in the lit
configuration and there's only one test suite even with multiple
targets.
3. I moved lldb-dotest into it's own directory under utils since there's
no need anymore for it to located under `test/`.
Differential revision: https://reviews.llvm.org/D46334
llvm-svn: 331463
This is a change that only affects Swift and is NFC for the language
plugins on llvm.org. In Swift, we can have global variables with a
location such as DW_OP_addr <addr> DW_OP_deref. The DWARF expression
evaluator doesn't know how to apply a DW_OP_deref to a file address,
but at the very end we convert the file address into a load address.
This patch moves the file->load address conversion to right after the
result of the DW_OP_addr is pushed onto the stack so that a subsequent
DW_OP_deref (and potentially other operations) can be interpreted.
rdar://problem/39767528
Differential revision: https://reviews.llvm.org/D46362
llvm-svn: 331462
The function can only return in one of two ways: the Predicate value is
successfully set within the allotted time, or it isn't (the wait times
out). These states can be represented in the return value, and the extra
arg adds no value.
llvm-svn: 331458
Summary:
lldb-test already had the ability to dump all symbol information in a
module. This is interesting, but it can be too verbose, and it also does
not use the same APIs that lldb uses to query symbol information. The
last part is interesting to me now, because I am about to add DWARF v5
debug_names support, which needs to implement these APIs.
This patch adds a set of arguments to lldb-test, which modify it's
behavior from dumping all symbols to dumping only the requested
information:
- --find={function,namespace,type,variable} - search for the given
kind of objects.
- --name - the name to search for.
- --regex - whether to treat the "name" as a regular expression. This is
not available for all lookup types (we do not have the required APIs
for namespaces and types).
- --context - specifies the context, which can be used to restrict the
search. This argument takes a variable name (which must be defined and
be unique), and we then use the context that this variable is defined
in as the search context.
- --function-flags={auto,full,base,method,selector} - a set of flags to
further restrict the search for function symbols.
Together, these flags and their combinations cover the main SymbolFile
entry points which I will need to modify for the accelerator table
support, and so I plan to do most of the regression testing this way.
(I've also found this a useful tool for exploration of what the given
APIs are supposed to do.)
I add a couple of tests to demonstrate the usage of the usage of the
various options, and also an xfailed test which demonstrates a bug I
found while playing with this. The only requirement for these tests is
the presence of lld -- the should run on any platform which is able to
build lldb.
These tests use c++ code as input, but this isn't a requirement. It is also
possible to use IR, assembly or json to create the test module.
Reviewers: davide, zturner, asmith, JDevlieghere, clayborg, alexshap
Subscribers: mgorny, aprantl, lldb-commits
Differential Revision: https://reviews.llvm.org/D46318
llvm-svn: 331447
This change adds support for two types of Minidump CodeView records:
PDB70 (reference: https://crashpad.chromium.org/doxygen/structcrashpad_1_1CodeViewRecordPDB70.html)
This is by far the most common record type.
ELF BuildID (found in Breakpad/Crashpad generated minidumps)
This would set a proper UUID for placeholder modules, in turn enabling
an accurate match with local module images.
Differential Revision: https://reviews.llvm.org/D46292
llvm-svn: 331394
In case we are building with xml enabled, the GetMemoryRegionInfo
function will send extra packets to query te extended memory map, which
the tests were not expecting.
Add an expectation for this to the test. Right now, it's just a basic
one which pretends we don't support the extension, however, it would be
also interesting the add a test which verifies the extension-enabled
case.
I also noticed that the test does a pretty lousy job of validating the
returned memory region info, so I add a couple of extra assertions to
improve that.
llvm-svn: 331374
This brings the LLDB configuration closer to LLVM's and removes visual
clutter in the source code by removing the @brief commands from
comments.
This patch also reflows the paragraphs in all doxygen comments.
See also https://reviews.llvm.org/D46290.
Differential Revision: https://reviews.llvm.org/D46321
llvm-svn: 331373
The functions are unused, their comments are out of date with the
implementation, and the implementation is out of date with the rest of the code
base (it uses seconds(0) to mean infinite wait, whereas elsewhere we use the
Timeout class).
llvm-svn: 331350
if an experimental setting has been removed/is missing.
Add tests for the .experimental. settings behaviors -- that they correctly
forward through to the real setting if it has become a real setting,
that they don't generate errors when a settig has been removed.
As Pavel notes in https://reviews.llvm.org/D45348, the way I'm suppressing
errors in the setting is not completely correct - if any of the setting
path components include "experimental", a missing setting would be declared
a non-error. So
settings set target.experimental.setting-that-does-not-exist true
would not generate an error, which is correct. But as Pavel notes,
settings set setting-does-not-exist.experimental.run-stopped true
should generate an error because the unknown name occurs before the
"experimental". The amount of change to do this correctly hasn't
thrilled me, so I'm leaving this as-is for now.
<rdar://problem/39223054>
Differential Revision: https://reviews.llvm.org/D45348
llvm-svn: 331315
The lit site configuration for the test suite can contain generator
expressions such as $<TARGET_FILE:debugserver> that need to be
substituted.
llvm-svn: 331277
Displaying of global pointer variables is not working on arm64 linux
(pr37301).
I've moved this part into a separate test, so it can be xfailed
separately. I then move the "show-variables-with-process-available"
check before the "show-all-variables" command to presrve the intent of
checking that global variable caching works correctly. (I've verified
that the new arrangement still fails when I revert the fix from
r331230.)
llvm-svn: 331250
that takes a prefix string. This simplifies the implementation and
allows plugins such as the Swift plugin to supply different prefixes
for return and error variables.
rdar://problem/39299889
Differential Revision: https://reviews.llvm.org/D46088
llvm-svn: 331235
so it can be shared across multiple language plugins.
In a multi-language project it is counterintuitive to have a result
variables reuse numbers just because they are using a different
language plugin in LLDB (but not for example, when they are
Objective-C versus C++, since they are both handled by Clang).
This is NFC on llvm.org except for the Go plugin.
rdar://problem/39299889
Differential Revision: https://reviews.llvm.org/D46083
llvm-svn: 331234
This fixes a bug where
(lldb) target var g_ptr
would populate the global variables list with exactly one entry
because SymbolFileDWARF::ParseVariables() was invoked with a list of
DIEs pre-filtered by name, such that a subsequent call to
(lldb) fr var --show-globals
would only list that one variable, because CompileUnit::m_variables
was already initialized, fooling CompileUnit::GetVariableList().
CompileUnit::GetVariableList() grabs the *complete* list of variables
via (SymbolFileDWARF, ...)::ParseVariablesForContext and that still
calls CompileUnit::SetVariableList(variables) which acts as the
caching mechanism.
Differential Revision: https://reviews.llvm.org/D46220
llvm-svn: 331230
Multiple DW_TAG_compile_unit being indexed in a multithreaded way can request
reading of the same DW_TAG_partial_unit.
Unfortunately one cannot detect DWZ file ahead of time to disable such locking
overhead as DWARFCompileUnit::Extract does not read the first DIE which is the
only place one could find early enough if the DWARF file is using any
DW_TAG_partial_unit.
Differential revision: https://reviews.llvm.org/D40470
llvm-svn: 331229
This patch fixes an issue where we weren't looking for exact matches in the expression parser and also fixed the type lookup logic in the Module.cpp. Tests added to make sure we don't regress.
Differential Revision: https://reviews.llvm.org/D46128
llvm-svn: 331227
This is intended as a clean up after the big clang-format commit
(r280751), which unfortunately resulted in many of the comment
paragraphs in LLDB being very hard to read.
FYI, the script I used was:
import textwrap
import commands
import os
import sys
import re
tmp = "%s.tmp"%sys.argv[1]
out = open(tmp, "w+")
with open(sys.argv[1], "r") as f:
header = ""
text = ""
comment = re.compile(r'^( *//) ([^ ].*)$')
special = re.compile(r'^((([A-Z]+[: ])|([0-9]+ )).*)|(.*;)$')
for line in f:
match = comment.match(line)
if match and not special.match(match.group(2)):
# skip intentionally short comments.
if not text and len(match.group(2)) < 40:
out.write(line)
continue
if text:
text += " " + match.group(2)
else:
header = match.group(1)
text = match.group(2)
continue
if text:
filled = textwrap.wrap(text, width=(78-len(header)),
break_long_words=False)
for l in filled:
out.write(header+" "+l+'\n')
text = ""
out.write(line)
os.rename(tmp, sys.argv[1])
Differential Revision: https://reviews.llvm.org/D46144
llvm-svn: 331197
Code commonly checks if the parent DIE is DW_TAG_compile_unit.
But DW_TAG_partial_unit also acts as DW_TAG_compile_unit for DWZ
as DWZ is using DW_TAG_imported_unit only at the top unit level.
Differential revision: https://reviews.llvm.org/D40469
llvm-svn: 331194
ObjectFileELF assumes that code section has ".text" name. There is an
exception for kalimba toolchain that can use arbitrary names, but other
toolchains also could use arbitrary names for code sections. For
example, corert uses separate section for compiled managed code. As lldb
doesn't recognize such section it leads to problem with breakpoints on
arm, because debugger cannot determine instruction set (arm/thumb) and
uses incorrect breakpoint opcode that breaks program execution.
This change allows debugger to correctly handle such code sections. We
assume that section is a code section if it has SHF_EXECINSTR flag set
and has SHT_PROGBITS type.
Patch by Konstantin Baladurin <k.baladurin@partner.samsung.com>.
Differential Revision: https://reviews.llvm.org/D44998
llvm-svn: 331173
A typo in the patch (using syntax instead of m_syntax) resulted in the
normalization not working properly for windows filespecs when the syntax
was passed as host-native. This did not affect the unit tests, as all of
those pass an explicity syntax, but failed gloriously when running the
full test suite.
I also fix an expectation in an lldb-mi test, which was now failing
because it was expecting a path to be echoed verbatim, but we were now
normalizing it.
As a drive-by, this also fixes the default-in-fully-covered-switch
warning and removes an unused argument from the NeedsNormalization
function.
llvm-svn: 331172
Always normalizing lldb_private::FileSpec paths will help us get a consistent results from comparisons when setting breakpoints and when looking for source files. This also removes a lot of complexity from the comparison routines. Modified the DWARF line table parser to use the normalized compile unit directory if needed.
Differential Revision: https://reviews.llvm.org/D45977
llvm-svn: 331049
LLDB doesn't use this packet so we never hit this, but it looks like
some other projects talk to debugserver and are hitting an assert
(https://github.com/derekparker/delve/issues/1015).
We had an off by 1 in the accounting of the FPU structure sizes.
I added a test that basically just check that 'g' doesn't return
an error (currently it assert in debug builds). I didn't make
it an lldb-server test because it looks like lldb-server doesn't
implement the g packet.
llvm-svn: 331004
When I merged the 2 codepaths that return an OS type, I hade
checked that the places accepting 'iphoneos' would also accept
'ios', but then I got it backwards and return 'iphoneos'.
We use this value to build triples, and there 'iphoneos' is
invalid.
This also makes the test slightly simpler.
llvm-svn: 330877
source/Symbol/ClangASTContext.cpp:391:13: error: enumeration value 'HIP' not handled in switch [-Werror,-Wswitch]
switch (IK.getLanguage()) {
llvm-svn: 330823
Summary:
The new script to run the lldbtests as part of lit invokes each test by calling dotest.py, however, we cannot rely on the system to always correctly interpret the script as python causing the tests to be unresolved on windows (at least). To fix this, we need to make sure that the first parameter in the command line is the python executable itself.
In Makefile.rules, there are a number of windows specific definitions that rely on the HOST_OS being set as Windows_NT but the logic detecting the OS currently does not detect server versions of windows correctly. This change updates the logic to detect windows server as well.
Reviewers: asmith, labath, JDevlieghere, zturner
Reviewed By: JDevlieghere, zturner
Subscribers: zturner, llvm-commits
Differential Revision: https://reviews.llvm.org/D46020
llvm-svn: 330740
Summary:
In the magic test duplicator, we were making the decision whether to
create a test variant based on the compiler and the target platform.
This meant that the set of known tests was different for each test
configuration.
This patch makes the set of generated test variants static and handles
the skipping via runtime checks instead. This is more consistent with
how we do other test-skipping decision (e.g. for libc++ tests), and
makes it easier to expose the full set of tests to lit, which now does
not need to know anything about what things can potentially cause tests
to appear or disappear.
Reviewers: JDevlieghere, aprantl
Subscribers: eraman, lldb-commits
Differential Revision: https://reviews.llvm.org/D45949
llvm-svn: 330708
The default packet timeout of 1 second is a bit too small for these
tests, particularly as they are working in ack-mode, which means they
need to fit twice as many packets into the timeslot.
This does not seem to be a problem on the bots, but for some people
these tests are timing out regularly. I can't be sure increasing this
will solve their problem, but this does seem like a likely culprit.
llvm-svn: 330578
The current way that the lit configuration is generated for the LLDB
tests that run using dotest causes cmake to fail when using a generator
which supports multiple configurations (such as Visual Studio). The
failure is because file GENERATE will create a file *per possible
configuration* resulting in the same lit configuration file being
overwritten multiple times.
To fix the issue, we need to create a single lit file that is agnostic
of the configurations and can be used for any configuration.
Patch by: Stella Stamenova
Differential revision: https://reviews.llvm.org/D45918
llvm-svn: 330518
Jim Ingham