Summary:
This commit renames ClangASTContext to TypeSystemClang to better reflect what this class is actually supposed to do
(implement the TypeSystem interface for Clang). It also gets rid of the very confusing situation that we have both a
`clang::ASTContext` and a `ClangASTContext` in clang (which sometimes causes Clang people to think I'm fiddling
with Clang's ASTContext when I'm actually just doing LLDB work).
I also have plans to potentially have multiple clang::ASTContext instances associated with one ClangASTContext so
the ASTContext naming will then become even more confusing to people.
Reviewers: #lldb, aprantl, shafik, clayborg, labath, JDevlieghere, davide, espindola, jdoerfert, xiaobai
Reviewed By: clayborg, labath, xiaobai
Subscribers: wuzish, emaste, nemanjai, mgorny, kbarton, MaskRay, arphaman, jfb, usaxena95, jingham, xiaobai, abidh, JDevlieghere, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D72684
These tests used "clang -mllvm -accel-tables=Dwarf" as a way to
guarantee that clang will emit the debug_names table. Unfortunately,
a change it clang made that insufficient (-gpubnames is required now
too), which rendered these tests ineffective. Since lldb automatically
falls back to the manual index, the tests didn't fail and this change
went largely unnoticed.
This patch updates the tests to really use debug_names (-gdwarf-5
-gpubnames) is the combination that works now, and it adds additional
checks to ensure the section is actually emitted.
Fortunately, no regressions crept in while these tests were disabled.
Summary:
This just adds `NO_DEBUG_INFO_TESTCASE` to tests that don't really exercise anything debug information specific
and therefore don't need to be rerun for all debug information variants.
Reviewers: labath, jingham, aprantl, mib, jfb
Reviewed By: aprantl
Subscribers: dexonsmith, JDevlieghere, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D72447
If you don't do this you end up running arbitrary code with
only one thread allowed to run, which can cause deadlocks.
<rdar://problem/56422478>
Differential Revision: https://reviews.llvm.org/D71440
Summary:
A lot of our tests copied the setUp code from our TestSampleTest.py:
```
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
```
This code does nothing unless we actually do any setUp work in there, so let's remove all these method definitions.
Reviewers: labath, JDevlieghere
Reviewed By: labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D71454
Summary:
A lot of tests do this trick but the vast majority of them don't even call `print()`.
Most of this patch was generated by a script that just looks at all the files and deletes the line if there is no `print (` or `print(` anywhere else in the file.
I checked the remaining tests manually and deleted the import if we never call print (but instead do stuff like `expr print(...)` and similar false-positives).
I also corrected the additional empty lines after the import in the files that I manually edited.
Reviewers: JDevlieghere, labath, jfb
Reviewed By: labath
Subscribers: dexonsmith, wuzish, nemanjai, kbarton, christof, arphaman, abidh, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D71452
These tests are failing with various assertion failures, but they all
throw the following error message first:
error: a.out 0x0000002d: adding range [0x14-0x24) which has a base that
is less than the function's low PC 0x40060c.
See llvm.org/pr44037.
Differential Revision: https://reviews.llvm.org/D70381
Summary:
Using enumerators as flags is standard practice. This patch adds
support to LLDB to display such enum values symbolically, eg:
(E) e1 = A | B
If enumerators don't cover the whole value, the remaining bits are
displayed as hexadecimal:
(E) e4 = A | 0x10
Detecting whether an enum is used as a bitfield or not is
complicated. This patch implements a heuristic that assumes that such
enumerators will either have only 1 bit set or will be a combination
of previous values.
This patch doesn't change the way we currently display enums which the
above heuristic would not consider as bitfields.
Reviewers: jingham, labath
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D67520
llvm-svn: 374067
This test streamlines our use of variables that are expected by
Makefile.rules throughout the test suite. Mostly it replaced
potentially dangerous overrides and updates of variables like CFLAGS
with safe assignments to variables reserved for this purpose like
CFLAGS_EXTRAS.
Differential Revision: https://reviews.llvm.org/D67984
llvm-svn: 372795
Summary:
Instead of each test case knowing its depth relative to the test root,
we can just have dotest add the folder containing Makefile.rules to the
include path.
This was motivated by r370616, though I have been wanting to do this
ever since we moved to building tests out-of-tree.
The only manually modified files in this patch are lldbinline.py and
plugins/builder_base.py. The rest of the patch has been produced by this
shell command:
find . \( -name Makefile -o -name '*.mk' \) -exec sed --in-place -e '/LEVEL *:\?=/d' -e '1,2{/^$/d}' -e 's,\$(LEVEL)/,,' {} +
Reviewers: teemperor, aprantl, espindola, jfb
Subscribers: emaste, javed.absar, arichardson, christof, arphaman, lldb-commits
Differential Revision: https://reviews.llvm.org/D67083
llvm-svn: 370845
If a bitfield doesn't fit into the child_byte_size'd window at
child_byte_offset, move the window forward until it fits. The problem
here is that Value has no notion of bitfields and thus the Value's
DataExtractor is sized like the bitfields CompilerType; a sequence of
bitfields, however, can be larger than their underlying type.
This was not in the big-endian-derived DWARF 2 bitfield attributes
because their offsets were counted from the end of the window, so they
always fit.
rdar://problem/53132189
Differential Revision: https://reviews.llvm.org/D65492
llvm-svn: 368226
Summary: update some test decorates that can actually pass on andriod aarch64
Patch by Wanyi Ye <kusmour@gmail.com>
Differential Revision: https://reviews.llvm.org/D64767
llvm-svn: 366858
When two .c files define a type of the same name, lldb
just picks one and uses it regardless of context. That is
not correct. When stopped in a frame in one of the .c files
that define this type, it should use that local definition.
This commit just adds a test that checks for the correct
behavior. It is currently xfailed.
llvm-svn: 366507
Summary:
We currently don't support offsetof in the expression evaluator as it is implemented as a macro
(which then calls __builtin_offsetof) in stddef.h. The best solution would be to include that
header (or even better, import Clang's builtin module), but header-parsing and
(cross-platform) importing modules is not ready yet.
Until we get this working with modules I would say we add the macro to our existing macro list
as we already do with other macros from stddef.h/stdint.h. We should be able to drop all of them
once we can import the relevant modules by default.
rdar://26040641
Reviewers: shafik, davide
Reviewed By: davide
Subscribers: clayborg, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D64917
llvm-svn: 366476
Summary:
With LLDB we use localUncachedLookup(), however, that fails to find
Decls when a transparent context is involved and the given DC has
external lexical storage. The solution is to use noload_lookup, which
works well with transparent contexts. But, we cannot use only the
noload_lookup since the slow case of localUncachedLookup is still needed
in some other cases.
These other cases are handled in ASTImporterLookupTable, but we cannot
use that with LLDB since that traverses through the AST which initiates
the load of external decls again via DC::decls().
We must avoid loading external decls during the import becuase
ExternalASTSource is implemented with ASTImporter, so external loads
during import results in uncontrolled and faulty import.
Reviewers: shafik, teemperor, jingham, clayborg, a_sidorin, a.sidorin
Subscribers: rnkovacs, dkrupp, Szelethus, gamesh411, cfe-commits, lldb-commits
Tags: #clang, #lldb
Differential Revision: https://reviews.llvm.org/D61333
llvm-svn: 366325
The part which checks whether vla_expr shows up in the variable list
does not pass on non-darwin platforms. Add the appropriate decorator.
llvm-svn: 359867
by respecting the "artificial" attribute on variables. Function
arguments that are artificial and useful to end-users are being
whitelisted by the language runtime.
<rdar://problem/45322477>
Differential Revision: https://reviews.llvm.org/D61451
llvm-svn: 359841
Adjust the XFAIL-ing tests to match consistent results from buildbot.
I'm going to work on differences between them and my local results
following this.
llvm-svn: 355774
Add a convenience 'expectedFailureNetBSD' decorator and mark all tests
currently failing on NetBSD with it. Also skip a few tests that hang
the test suite. This should establish a baseline for the test suite
and get us closer to enabling tests on buildbot. This will help us
catch regressions while we still have a lot of work to do to get tests
working.
It seems that there are also some flaky tests. I am going to address
them later on.
Differential Revision: https://reviews.llvm.org/D58527
llvm-svn: 355320
to reflect the new license.
We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.
Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.
llvm-svn: 351636
This patch changes the behavior when printing C++ function references:
where we previously would get a <could not determine size>, there is
now a <no summary available>. It's not clear to me whether this is a
bug or an omission, but it's one step further than LLDB previously
got.
Differential Revision: https://reviews.llvm.org/D56798
llvm-svn: 351376
This is a set of tests that were all marked as failing becuse of pr24764. The bug is not fixed (as in more of the tests that were marked this way are failing), but this set is passing. It is possible that some of them are false positives, but there's a large number of unexpectedly passing tests on Windows, so I am doing a bulk un-xfail to get the buildbot to green.
llvm-svn: 349719
This is a set of tests that were all marked as failing becuse of several different bugs. A couple of the bugs are now resolved as fixed since all the tests that were failing associated with the bug are now passing. It is possible that some of them are false positives, but there's a large number of unexpectedly passing tests on Windows, so I am doing a bulk un-xfail to get the buildbot to green.
llvm-svn: 349713
This is a set of tests that were all marked as failing becuse of pr21765. The bug is not fixed (as in more of the tests that were marked this way are failing), but this set is passing. It is possible that some of them are false positives, but there's a large number of unexpectedly passing tests on Windows, so I am doing a bulk un-xfail to get the buildbot to green.
llvm-svn: 349668
Clang recently improved its DWARF support for C VLA types. The DWARF
now looks like this:
0x00000051: DW_TAG_variable [4]
DW_AT_location( fbreg -32 )
DW_AT_name( "__vla_expr" )
DW_AT_type( {0x000000d3} ( long unsigned int ) )
DW_AT_artificial( true )
...
0x000000da: DW_TAG_array_type [10] *
DW_AT_type( {0x000000cc} ( int ) )
0x000000df: DW_TAG_subrange_type [11]
DW_AT_type( {0x000000e9} ( __ARRAY_SIZE_TYPE__ ) )
DW_AT_count( {0x00000051} )
Without this patch LLDB will naively interpret the DIE offset 0x51 as
the static size of the array, which is clearly wrong. This patch
extends ValueObject::GetNumChildren to query the dynamic properties of
incomplete array types.
See the testcase for an example:
4 int foo(int a) {
5 int vla[a];
6 for (int i = 0; i < a; ++i)
7 vla[i] = i;
8
-> 9 pause(); // break here
10 return vla[a-1];
11 }
(lldb) fr v vla
(int []) vla = ([0] = 0, [1] = 1, [2] = 2, [3] = 3)
(lldb) quit
rdar://problem/21814005
Differential Revision: https://reviews.llvm.org/D53530
llvm-svn: 346165
After landing r341457, we started seeing a failure on the swift-lldb
bots. The change was correct and pretty straightforward, a DW_OP_constu
was replaced with DW_OP_lit23, the value remaining identical.
0x000000f4: DW_TAG_variable
DW_AT_location (0x00000000
[0x0000000100000a51, 0x0000000100000d47): DW_OP_lit23, DW_OP_stack_value)
DW_AT_name ("number")
However, this broke LLDB.
(Int) number = <extracting data from value failed>
The value was read correctly, but apparently the value's type was different.
When reading a constu it was reading a uint64 (m_type = e_ulonglong) while for
the literal, it got a signed int (m_type = e_sint). This change makes sure we
read the value as an unsigned.
Differential revision: https://reviews.llvm.org/D51730
llvm-svn: 342142
Summary:
For some bitfield patterns (like the one added by this commit), Clang will
generate non-regular data types like i24 or i48. This patch follows a
pretty naive approach of just bumping the type size to the next power of 2.
DataExtractor know how to deal with weird sizes. The operations on Scalar
do not know how to deal with those types though, so we have to legalize the
size when creating a Scalar.
Reviewers: jingham, clayborg
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D51245
llvm-svn: 340880
Summary:
The test suite has often unnecessary trailing whitespace, and sometimes
unnecessary trailing lines or a missing final new line. This patch just strips
trailing whitespace/lines and adds missing newlines at the end.
Subscribers: ki.stfu, JDevlieghere, christof, lldb-commits
Differential Revision: https://reviews.llvm.org/D49943
llvm-svn: 338171
This method is used to find complete definitions of a type when one
parses a compile unit with only forward declaration available.
Since it is only accessed from DWARFASTParserClang, it was not
possible/easy to trigger this codepath from lldb-test. Therefore, I
adapt add a debug-names variant to an existing dotest test to cover this
scenario.
llvm-svn: 334516
Summary: They all correspond to bugs that are already logged and I've added the appropriate (or most appropriate) bug numbers. This leaves only a handful of failing tests.
Reviewers: asmith, zturner, labath
Reviewed By: zturner
Subscribers: eraman, llvm-commits
Differential Revision: https://reviews.llvm.org/D47892
llvm-svn: 334210
