Summary:
This patch adds the code needed to parse a minidump file into the
MinidumpYAML model, and the necessary glue code so that obj2yaml can
recognise the minidump files and process them.
Reviewers: jhenderson, zturner, clayborg
Subscribers: mgorny, lldb-commits, amccarth, markmentovai, aprantl, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59634
llvm-svn: 357469
Summary:
modify-python-lldb.py had code to insert python equality operators to
some classes. Some of those classes already had c++ equality operators,
and some didn't.
This makes the situation more consistent, by removing all equality
handilng from modify-python-lldb. Instead, I add c++ operators to
classes where they were missing, and expose them in the swig interface
files so that they are available to python too.
The only tricky case was the SBAddress class, which had an operator==
defined as a free function, which is not handled by swig. This function
cannot be removed without breaking ABI, and we cannot add an extra
operator== member, as that would make equality comparisons ambiguous.
For this class, I define a python __eq__ function by hand and have it
delegate to the operator!=, which I have defined as a member function.
This isn't fully NFC, as the semantics of some equality functions in
python changes slightly, but I believe it changes for the better (e.g.,
previously SBBreakpoint.__eq__ would consider two breakpoints with the
same ID as equal, even if they belonged to different targets; now they
are only equal if they belong to the same target).
Reviewers: jingham, clayborg, zturner
Subscribers: jdoerfert, JDevlieghere, lldb-commits
Differential Revision: https://reviews.llvm.org/D59819
llvm-svn: 357463
At least gcc 7.4 complained with
../tools/clang/lib/StaticAnalyzer/Checkers/Taint.cpp:26:53: warning: extra ';' [-Wpedantic]
TaintTagType);
^
llvm-svn: 357461
There are various places in LLVM where the definition of StackID is not
properly honoured, for example in PEI where objects with a StackID > 0 are
allocated on the default stack (StackID0). This patch enforces that PEI
only considers allocating objects to StackID 0.
Reviewers: arsenm, thegameg, MatzeB
Reviewed By: arsenm
Differential Revision: https://reviews.llvm.org/D60062
llvm-svn: 357460
I'm not sure why this surfaced at this particular point, but
TestCommandScriptImmediateOutput (a pexpect test) had a synchronization
issue, where the (lldb) promts it was expecting were getting out of
sync. This happened for two reasons:
- it did not expect the initial (lldb) prompt we print at startup
- launchArgs() returned None, which resulted in an extra "target create
None" command being issued to lldb (and an extra unhandled prompt
being printed).
Resolving these two issues seems to fix (or at least, improve) the test.
llvm-svn: 357459
The test was hitting llvm_unreachable in
Platform::GetSoftwareBreakpointTrapOpcode because it could not figure
out the architecture of the process. Since that is not the purpose of
the test, I change the test to use an explicit
CreateTargetWithFileAndTargetTriple command to specify it.
llvm-svn: 357456
Summary:
This refactors moves the register name->number resolution out of the
FPOProgramNodeRegisterRef class. Instead I create a special
FPOProgramNodeSymbol class, which holds unresolved symbols, and move the
resolution into the ResolveRegisterRefs visitor.
The background here is that I'd like to use this code for Breakpad
unwind info, which uses similar syntax to describe unwind info. For
example, a simple breakpad unwind program might look like:
.cfa: $esp 8 + $ebp: .cfa 8 - ^
To be able to do this, I need to be able to customize register
resolving, as that is presently hardcoded to use codeview register
names, but breakpad supports a lot more architectures with different
register names. Moving the resolution into a separate class will allow
each user to use a different resolution logic.
Reviewers: aleksandr.urakov, zturner, amccarth
Subscribers: jdoerfert, lldb-commits
Differential Revision: https://reviews.llvm.org/D60068
llvm-svn: 357455
The current definitions were entirely broken. They didn't call any
existing constructor and the forgot to friend the expression types they
were trying to construct.
llvm-svn: 357453
The code was previously checking that candidates for sinking had exactly
one use or were a store instruction (which can't have uses). This meant
we could sink call instructions only if they had a use.
That limitation seemed a bit arbitrary, so this patch changes it to
"instruction has zero or one use" which seems more natural and removes
the need to special-case stores.
Differential revision: https://reviews.llvm.org/D59936
llvm-svn: 357452
While reviewing D56233 it became clear to me that this test can be
simplified. There's no need for a start-stop cycle in the inferior -- we
can start fiddling with its registers as soon as it is launched.
llvm-svn: 357451
llvm-ar is a crunchgen-style executable dispatching to dlltool,ranlib,lib,ar based on argv[0].
In our content-addressable storage, readlink -f resolves paths to some
digest and thus lost the original "llvm-ar" filename.
Replace it with a custom path resolution to fix the problem.
llvm-svn: 357450
Patch from 'troyj':
Hi, I ran into a problem with this test when the source was located in
certain directories. The mkdir(2) man page states that the set-group-ID
bit is inherited from the parent directory, but this test was written in
such a way that it assumes the bit is unset. Whether that assumption is
true depends on where the checkout lives, which leads to some people
being able to reproduce the problem whereas others cannot. I think the
correct fix is to exclude the bit from the check.
Making probinson a reviewer since they reviewed the original test.
Patch landed for troyj, thanks!
Differential Revision: D53832
llvm-svn: 357449
The code doesn't actually need any of the information about the widenable condition at this level. The only thing we need is to ensure the WC call is the last thing anded in, and even that is a quirk we should really look to remove.
llvm-svn: 357448
There's an existing optimization for x != C, but somehow it was missing
a special case for 0.
While I'm here, also cleaned up the code/comments a bit: the second
value produced by the MERGE_VALUES was actually dead, since a CMOV only
produces one result.
Differential Revision: https://reviews.llvm.org/D59616
llvm-svn: 357437
It's a little tricky to make this issue show up because
prologue/epilogue emission normally likes to push at least two
registers... but it doesn't when lr is force-spilled due to function
length. Not sure if that really makes sense, but I decided not to touch
it for now.
Differential Revision: https://reviews.llvm.org/D59385
llvm-svn: 357436
This improves selection for vector stores into v2s64s. Before we just
scalarized them, but we can just use a STRQui instead.
Differential Revision: https://reviews.llvm.org/D60083
llvm-svn: 357432
I found the code of Process::WriteMemory particularly hard to follow
when reviewing Ismail's change in D60022. This simplifies the code and
hopefully prevents similar oversights in the future.
Differential revision: https://reviews.llvm.org/D60092
llvm-svn: 357428
Summary:
This change prevents the lldb-vscode test harness from hanging up waiting for
new messages when the lldb-vscode subprocess crashes.
Now, when an EOF from the subprocess pipe is detected we enqueue a `None` packet
in the received packets list. Then, during the message processing loop, we can
use this `None` packet to tell apart the case where lldb-vscode has terminated
unexpectedly from the normal situation where no pending messages means blocking
and waiting for more data.
I believe this should be enough to fix the issues with these tests hanging on
multiple platforms. Once this lands, I'll prepare and test a separate change
removing the @skipIfLinux annotations.
Reviewers: clayborg, zturner
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D59849
llvm-svn: 357426
Summary: Completes P0357R3, which was merged into the C++20 Working Draft in San Diego.
Reviewers: EricWF, mclow.lists
Subscribers: christof, jkorous, dexonsmith, libcxx-commits
Differential Revision: https://reviews.llvm.org/D54722
llvm-svn: 357423
Summary:
In case of a breakpoint site overlapping with the destination address,
the WriteMemory method reported an incorrect memory size.
Instead of returning the right amount of bytes written, it falls through
the scope and returned 0.
Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
Reviewers: jasonmolenda, friss, jingham
Subscribers: JDevlieghere, davide, lldb-commits, #lldb
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D60022
llvm-svn: 357420
This should allow llvm-exegesis to intelligently constrain the rounding mode.
The mask in the encoder shouldn't be necessary any more. We used to allow codegen to use 8-11 for rounding mode and the assembler would use 0-3 to mean the same thing so we masked here and in the printer. Codegen now matches the assembler and the printer was updated, but I forgot to update the encoder.
llvm-svn: 357419
And rename the function to combineEhSections(). This makes the processing
of .ARM.exidx even more similar to .eh_frame and means that we can avoid an
additional loop over InputSections.
Differential Revision: https://reviews.llvm.org/D60026
llvm-svn: 357417
Before this patch, CGLoop would dump all transformations for a loop into
a single LoopID without encoding any order in which to apply them.
rL348944 added the possibility to encode a transformation order using
followup-attributes.
When a loop has more than one transformation, use the follow-up
attribute define the order in which they are applied. The emitted order
is the defacto order as defined by the current LLVM pass pipeline,
which is:
LoopFullUnrollPass
LoopDistributePass
LoopVectorizePass
LoopUnrollAndJamPass
LoopUnrollPass
MachinePipeliner
This patch should therefore not change the assembly output, assuming
that all explicit transformations can be applied, and no implicit
transformations in-between. In the former case,
WarnMissedTransformationsPass should emit a warning (except for
MachinePipeliner which is not implemented yet). The latter could be
avoided by adding 'llvm.loop.disable_nonforced' attributes.
Because LoopUnrollAndJamPass processes a loop nest, generation of the
MDNode is delayed to after the inner loop metadata have been processed.
A temporary LoopID is therefore used to annotate instructions and
RAUW'ed by the actual LoopID later.
Differential Revision: https://reviews.llvm.org/D57978
llvm-svn: 357415
Pavel Labath