Commit Graph

323 Commits

Author SHA1 Message Date
Zachary Turner 2f3df6137a iwyu fixes for lldbCore.
This adjusts header file includes for headers and source files
in Core.  In doing so, one dependency cycle is eliminated
because all the includes from Core to that project were dead
includes anyway.  In places where some files in other projects
were only compiling due to a transitive include from another
header, fixups have been made so that those files also include
the header they need.  Tested on Windows and Linux, and plan
to address failures on OSX and FreeBSD after watching the
bots.

llvm-svn: 299714
2017-04-06 21:28:29 +00:00
Tamas Berghammer 4fbb55b7b1 Stop calling ValueObject::SetName from synthetic child providers
Summary:
Calling ValueObject::SetName from a sythetic child provider would change
the underying value object used for the non-synthetic child as well what
is clearly unintentional.

Reviewers: jingham, labath

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D31371

llvm-svn: 299259
2017-03-31 20:48:00 +00:00
Tamas Berghammer 4c08fe2841 Add support for sythetic operator dereference
Summary:
After this change a sythetic child provider can generate a special child
named "$$dereference$$" what if present is used when "operator*" or
"operator->" used on a ValueObject. The goal of the change is to make
expressions like "up->foo" work inside the "frame variable" command.

Reviewers: labath, jingham

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D31368

llvm-svn: 299251
2017-03-31 20:23:22 +00:00
Zachary Turner 666cc0b291 Move DataBuffer / DataExtractor and friends from Core -> Utility.
llvm-svn: 296943
2017-03-04 01:30:05 +00:00
Zachary Turner 6f9e690199 Move Log from Core -> Utility.
All references to Host and Core have been removed, so this
class can now safely be lowered into Utility.

Differential Revision: https://reviews.llvm.org/D30559

llvm-svn: 296909
2017-03-03 20:56:28 +00:00
Zachary Turner 01c3243fc1 Remove dependencies from Utility to Core and Target.
With this patch, the only dependency left is from Utility
to Host.  After this is broken, Utility will finally be
standalone.

Differential Revision: https://reviews.llvm.org/D29909

llvm-svn: 295088
2017-02-14 19:06:07 +00:00
Zachary Turner bf9a77305f Move classes from Core -> Utility.
This moves the following classes from Core -> Utility.

ConstString
Error
RegularExpression
Stream
StreamString

The goal here is to get lldbUtility into a state where it has
no dependendencies except on itself and LLVM, so it can be the
starting point at which to start untangling LLDB's dependencies.
These are all low level and very widely used classes, and
previously lldbUtility had dependencies up to lldbCore in order
to use these classes.  So moving then down to lldbUtility makes
sense from both the short term and long term perspective in
solving this problem.

Differential Revision: https://reviews.llvm.org/D29427

llvm-svn: 293941
2017-02-02 21:39:50 +00:00
Greg Clayton 8369b28da0 Fix the variable view in the "gui" curses mode so that variables whose children change will update correctly. Previously the variable view would update the children once and not change. If you were stepping through code where the dynamic type of a variable would change the value and its children, or a synthetic type (like say for a std::vector<int>), the variable view wouldn't update. Now it caches the children and uses the process stop ID to tell when the children need to be updated.
llvm-svn: 290688
2016-12-28 21:22:37 +00:00
Zachary Turner 2a3d10ae61 Re-add the StringRef interface changes for Variable.
This concludes the changes I originally tried to make and then
had to back out.  This way if anything is still broken, it
should be easier to bisect it back to a more specific changeset.

llvm-svn: 287367
2016-11-18 19:23:39 +00:00
Zachary Turner d2daca770b Resubmit "Remove an output-parameter from Variable function".
The scanning algorithm had a few little subtleties that I
overlooked, but this patch should fix everything.

I still haven't changed the function to take a StringRef since
that has some trickle down effect and is mostly mechanical,
I just wanted to get the tricky part as isolated as possible.

llvm-svn: 287354
2016-11-18 17:55:04 +00:00
Zachary Turner 655c452534 Revert "Remove an out param from ValueObject::GetValueForExpressionPath."
This reverts commit r287315, as it introduces a bug that breaks
many things.

llvm-svn: 287320
2016-11-18 06:34:45 +00:00
Zachary Turner 82d760879f Remove an out param from ValueObject::GetValueForExpressionPath.
This argument was only used in one place in the codebase, and
it was in a non-critical log statement and can be easily
substituted for an equally meaningful field instead.  The
payoff of computing this value is not worth the added
complexity.

llvm-svn: 287315
2016-11-18 05:45:41 +00:00
Zachary Turner 70a38092fd Delete more dead code in ValueObject.
Apparently these two enormous functions were dead.  Which is
good, since one was largely a copy of another function with
only a few minor tweaks.

llvm-svn: 287308
2016-11-18 04:30:47 +00:00
Zachary Turner c2d5558b21 Remove some dead code in ValueObject.
Originally I converted this entire function and all dependents
to use StringRef, but there were some test failures that
were tricky to track down, as this is a complicated function.
So I'm starting over, this time in smaller increments.

llvm-svn: 287307
2016-11-18 03:51:19 +00:00
Zachary Turner c156427ded Don't allow direct access to StreamString's internal buffer.
This is a large API change that removes the two functions from
StreamString that return a std::string& and a const std::string&,
and instead provide one function which returns a StringRef.

Direct access to the underlying buffer violates the concept of
a "stream" which is intended to provide forward only access,
and makes porting to llvm::raw_ostream more difficult in the
future.

Differential Revision: https://reviews.llvm.org/D26698

llvm-svn: 287152
2016-11-16 21:15:24 +00:00
Zachary Turner aa5611f56d Change ValueObject creation functions to take StringRefs.
llvm-svn: 286744
2016-11-13 03:29:46 +00:00
Enrico Granata 65d86e4fa5 Simplify the PrintableRepresentationSpecialCases code; we never used the ePrintableRepresentationSpecialCasesOnly value and with enum classes the names doesn't need to be that long
llvm-svn: 286176
2016-11-07 23:32:20 +00:00
Malcolm Parsons 771ef6d4f1 Fix Clang-tidy readability-redundant-string-cstr warnings
Reviewers: zturner, labath

Subscribers: tberghammer, danalbert, lldb-commits
    
Differential Revision: https://reviews.llvm.org/D26233

llvm-svn: 285855
2016-11-02 20:34:10 +00:00
Kate Stone b9c1b51e45 *** This commit represents a complete reformatting of the LLDB source code
*** to conform to clang-format’s LLVM style.  This kind of mass change has
*** two obvious implications:

Firstly, merging this particular commit into a downstream fork may be a huge
effort.  Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit.  The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):

    find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
    find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;

The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.

Secondly, “blame” style tools will generally point to this commit instead of
a meaningful prior commit.  There are alternatives available that will attempt
to look through this change and find the appropriate prior commit.  YMMV.

llvm-svn: 280751
2016-09-06 20:57:50 +00:00
Enrico Granata b370f18391 Check for null
llvm-svn: 280513
2016-09-02 18:15:48 +00:00
Enrico Granata b9bddc4c7f Teach ValueObject::ReadPointedString how to read char[] in host memory
llvm-svn: 280166
2016-08-30 21:33:47 +00:00
Greg Clayton df62e731ea "frame variable" and "target variable" shouldn't allow us to get the address of bitfields.
"frame variable" and "target variable" are trying to emulate the expression parser when doing things like:

(lldb) frame variable &my_struct.my_bitfield

And since the expression parser doesn't allow this, we shouldn't allow "frame variable" or "target variable" to succeed.

<rdar://problem/27208607> 

llvm-svn: 274703
2016-07-06 23:16:24 +00:00
Enrico Granata fd4e5a8801 Add an argument to ValueObject::GetSyntheticBase that allows for name customization on the generated value
llvm-svn: 268274
2016-05-02 18:13:18 +00:00
Ulrich Weigand 461bd680c3 Handle bit fields on big-endian systems correctly
Currently, the DataExtractor::GetMaxU64Bitfield and GetMaxS64Bitfield
routines assume the incoming "bitfield_bit_offset" parameter uses
little-endian bit numbering, i.e. a bitfield_bit_offset 0 refers to
a bitfield whose least-significant bit coincides with the least-
significant bit of the surrounding integer.

On many big-endian systems, however, the big-endian bit numbering
is used for bit fields.  Here, a bitfield_bit_offset 0 refers to
a bitfield whose most-significant bit conincides with the most-
significant bit of the surrounding integer.

Now, in principle LLDB could arbitrarily choose which semantics of
bitfield_bit_offset to use.  However, there are two problems with
the current approach:

- When parsing DWARF, LLDB decodes bit offsets in little-endian
  bit numbering on LE systems, but in big-endian bit numbering
  on BE systems.  Passing those offsets later on into the
  DataExtractor routines gives incorrect results on BE.

- In the interim, LLDB's type layer combines byte and bit offsets
  into a single number.  I.e. instead of recording bitfields by
  specifying the byte offset and byte size of the surrounding
  integer *plus* the bit offset of the bit field within that field,
  it simply records a single bit offset number.

  Now, note that converting from byte offset + bit offset to a
  single offset value and back is well-defined if we either use
  little-endian byte order *and* little-endian bit numbering,
  or use big-endian byte order *and* big-endian bit numbering.
  Any other combination will yield incorrect results.

Therefore, the simplest approach would seem to be to always use
the bit numbering that matches the system byte order.  This makes
storing a single bit offset valid, and makes the existing DWARF
code correct.  The only place to fix is to teach DataExtractor
to use big-endian bit numbering on big endian systems.

However, there is only additional caveat: we also get bit offsets
from LLDB synthetic bitfields.  While the exact semantics of those
doesn't seem to be well-defined, from test cases it appears that
the intent was for the user-provided synthetic bitfield offset to
always use little-endian bit numbering.  Therefore, on a big-endian
system we now have to convert those to big-endian bit numbering
to remain consistent.

Differential Revision: http://reviews.llvm.org/D18982

llvm-svn: 266312
2016-04-14 14:32:57 +00:00
Marianne Mailhot-Sarrasin 82a827de3b Fixed ValueObject::GetExpressionPath() for paths including anonymous struct/union
When the parent of an expression is anonymous, skip adding '.' or '->' before the expression name.

Differential Revision: http://reviews.llvm.org/D18005

llvm-svn: 263166
2016-03-10 22:10:59 +00:00