Commit Graph

91 Commits

Author SHA1 Message Date
Adrian Prantl 1ad655e255 Modernize the rest of the Find.* API (NFC)
This patch removes the size_t return value and the append parameter
from the remainder of the Find.* functions in LLDB's internal API. As
in the previous patches, this is motivated by the fact that these
parameters aren't really used, and in the case of the append parameter
were frequently implemented incorrectly.

Differential Revision: https://reviews.llvm.org/D69119

llvm-svn: 375160
2019-10-17 19:56:40 +00:00
Adrian Prantl bf9d84c014 Remove size_t return parameter from FindTypes
In r368345 I accidentally introduced a regression that would
over-report the number of matches found by FindTypes if the
DeclContext Filter was hit.

This patch simply removes the size_t return parameter altogether —
it's not that useful.

rdar://problem/55500457

Differential Revision: https://reviews.llvm.org/D68169

llvm-svn: 373344
2019-10-01 15:40:41 +00:00
Pavel Labath 465eae3669 SymbolVendor: Remove passthrough methods
After the recent refactorings the SymbolVendor passthrough no longer
serve any purpose. This patch removes those methods, and updates all
callsites to go to the symbol file directly -- in most cases that just
means calling GetSymbolFile()->foo() instead of
GetSymbolVendor()->foo().

llvm-svn: 368001
2019-08-06 09:12:42 +00:00
Pavel Labath d5d47a3574 Remove SymbolVendor::GetSymtab
Summary:
This patch removes the GetSymtab method from the SymbolVendor, which is
a no-op as it's implementation just forwards to the relevant SymbolFile.
Instead it creates a Module::GetSymtab, which calls the SymbolFile
method directly.

All callers have been updated to use the Module method directly instead
of a two phase GetSymbolVendor->GetSymtab search, which leads to reduced
intentation in a lot of deeply nested code.

Reviewers: clayborg, JDevlieghere, jingham

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D65569

llvm-svn: 367820
2019-08-05 09:21:47 +00:00
Alex Langford 0e252e38ef [Symbol] Use llvm::Expected when getting TypeSystems
Summary:
This commit achieves the following:
- Functions used to return a `TypeSystem *` return an
  `llvm::Expected<TypeSystem *>` now. This means that the result of a call
  is always checked, forcing clients to move more carefully.
- `TypeSystemMap::GetTypeSystemForLanguage` will either return an Error or a
  non-null pointer to a TypeSystem.

Reviewers: JDevlieghere, davide, compnerd

Subscribers: jdoerfert, lldb-commits

Differential Revision: https://reviews.llvm.org/D65122

llvm-svn: 367360
2019-07-30 22:12:34 +00:00
Konrad Kleine 248a13057a [lldb] NFC modernize codebase with modernize-use-nullptr
Summary:
NFC = [[ https://llvm.org/docs/Lexicon.html#nfc | Non functional change ]]

This commit is the result of modernizing the LLDB codebase by using
`nullptr` instread of `0` or `NULL`. See
https://clang.llvm.org/extra/clang-tidy/checks/modernize-use-nullptr.html
for more information.

This is the command I ran and I to fix and format the code base:

```
run-clang-tidy.py \
	-header-filter='.*' \
	-checks='-*,modernize-use-nullptr' \
	-fix ~/dev/llvm-project/lldb/.* \
	-format \
	-style LLVM \
	-p ~/llvm-builds/debug-ninja-gcc
```

NOTE: There were also changes to `llvm/utils/unittest` but I did not
include them because I felt that maybe this library shall be updated in
isolation somehow.

NOTE: I know this is a rather large commit but it is a nobrainer in most
parts.

Reviewers: martong, espindola, shafik, #lldb, JDevlieghere

Reviewed By: JDevlieghere

Subscribers: arsenm, jvesely, nhaehnle, hiraditya, JDevlieghere, teemperor, rnkovacs, emaste, kubamracek, nemanjai, ki.stfu, javed.absar, arichardson, kbarton, jrtc27, MaskRay, atanasyan, dexonsmith, arphaman, jfb, jsji, jdoerfert, lldb-commits, llvm-commits

Tags: #lldb, #llvm

Differential Revision: https://reviews.llvm.org/D61847

llvm-svn: 361484
2019-05-23 11:14:47 +00:00
Jonas Devlieghere 306809f292 [Reproducers] Capture return values of functions returning by ptr/ref
For some reason I had convinced myself that functions returning by
pointer or reference do not require recording their result. However,
after further considering I don't see how that could work, at least not
with the current implementation. Interestingly enough, the reproducer
instrumentation already (mostly) accounts for this, though the
lldb-instr tool did not.

This patch adds the missing macros and updates the lldb-instr tool.

Differential revision: https://reviews.llvm.org/D60178

llvm-svn: 357639
2019-04-03 21:31:22 +00:00
Michal Gorny ae211ece6a [lldb] [Reproducer] Move SBRegistry registration into declaring files
Move SBRegistry method registrations from SBReproducer.cpp into files
declaring the individual APIs, in order to reduce the memory consumption
during build and improve maintainability.  The current humongous
SBRegistry constructor exhausts all memory on a NetBSD system with 4G
RAM + 4G swap, therefore making it impossible to build LLDB.

Differential Revision: https://reviews.llvm.org/D59427

llvm-svn: 356481
2019-03-19 17:13:13 +00:00
Pavel Labath 7f5237bccc Add "operator bool" to SB APIs
Summary:
Our python version of the SB API has (the python equivalent of)
operator bool, but the C++ version doesn't.

This is because our python operators are added by modify-python-lldb.py,
which performs postprocessing on the swig-generated interface files.

In this patch, I add the "operator bool" to all SB classes which have an
IsValid method (which is the same logic used by modify-python-lldb.py).
This way, we make the two interfaces more constent, and it allows us to
rely on swig's automatic syntesis of python __nonzero__ methods instead
of doing manual fixups.

Reviewers: zturner, jingham, clayborg, jfb, serge-sans-paille

Subscribers: jdoerfert, lldb-commits

Differential Revision: https://reviews.llvm.org/D58792

llvm-svn: 355824
2019-03-11 13:58:46 +00:00
Jonas Devlieghere 581af8b09d [SBAPI] Log from record macro
The current record macros already log the function being called. This
patch extends the macros to also log their input arguments and removes
explicit logging from the SB API.

This might degrade the amount of information in some cases (because of
smarter casts or efforts to log return values). However I think this is
outweighed by the increased coverage and consistency. Furthermore, using
the reproducer infrastructure, diagnosing bugs in the API layer should
become much easier compared to relying on log messages.

Differential revision: https://reviews.llvm.org/D59101

llvm-svn: 355649
2019-03-07 22:47:13 +00:00
Jonas Devlieghere baf5664f50 [Reproducers] Add SBReproducer macros
This patch adds the SBReproducer macros needed to capture and reply the
corresponding calls. This patch was generated by running the lldb-instr
tool on the API source files.

Differential revision: https://reviews.llvm.org/D57475

llvm-svn: 355459
2019-03-06 00:06:00 +00:00
Jonas Devlieghere d5b440369d Replace 'ap' with 'up' suffix in variable names. (NFC)
The `ap` suffix is a remnant of lldb's former use of auto pointers,
before they got deprecated. Although all their uses were replaced by
unique pointers, some variables still carried the suffix.

In r353795 I removed another auto_ptr remnant, namely redundant calls to
::get for unique_pointers. Jim justly noted that this is a good
opportunity to clean up the variable names as well.

I went over all the changes to ensure my find-and-replace didn't have
any undesired side-effects. I hope I didn't miss any, but if you end up
at this commit doing a git blame on a weirdly named variable, please
know that the change was unintentional.

llvm-svn: 353912
2019-02-13 06:25:41 +00:00
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
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
2019-01-19 08:50:56 +00:00
Zachary Turner 576495e67b [SymbolFile] Remove SymbolContext parameter from FindTypes.
This parameter was only ever used with the Module set, and
since a SymbolFile is tied to a module, the parameter turns
out to be entirely unnecessary.  Furthermore, it doesn't make
a lot of sense to ask a caller to ask SymbolFile which is tied
to Module X to find types for Module Y, but that possibility
was open with the previous interface.  By removing this
parameter from the API, it makes it harder to use incorrectly
as well as easier for an implementor to understand what it
needs to do.

llvm-svn: 351133
2019-01-14 22:41:21 +00:00
Pavel Labath d1e3fe2190 Rename ObjectFile::GetHeaderAddress to GetBaseAddress
Summary:
This function was named such because in the case of MachO files, the
mach header is located at this address. However all (most?) usages of
this function were not interested in that fact, but the fact that this
address is used as the base address for expressing various relative
addresses in the object file.

For other object file formats, this name is not appropriate (and it's
probably the reason why this function was not implemented in these
classes). In the ELF case the ELF header will usually end up at this
address, but this is a result of the linker optimizing the file layout
and not a requirement of the spec. For COFF files, I believe the is no
header located at this address either.

Reviewers: clayborg, jasonmolenda, amccarth, lemo, stella.stamenova

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D55422

llvm-svn: 348849
2018-12-11 15:21:15 +00:00
Aleksandr Urakov 9b087d2ce6 [Target] Do not skip a stop on a breakpoint if a plan was completed
Summary:
This patch fixes the next situation. On Windows clang-cl makes no stub before
the main function, so the main function is located exactly on module entry
point. May be it is the same on other platforms. So consider the following
sequence:

- set a breakpoint on main and stop there;
- try to evaluate expression, which requires a code execution on the debuggee
  side. Such an execution always returns to the module entry, and the plan waits
  for it there;
- the plan understands that it is complete now and removes its breakpoint. But
  the breakpoint site is still there, because we also have a breakpoint on
  entry;
- StopInfo analyzes a situation. It sees that we have stopped on the breakpoint
  site, and it sees that the breakpoint site has owners, and no one logical
  breakpoint is internal (because the plan is already completed and it have
  removed its breakpoint);
- StopInfo thinks that it's a user breakpoint and skips it to avoid recursive
  computations;
- the program continues.

So in this situation the program continues without a stop right after
the expression evaluation. To avoid this an additional check that
the plan was completed was added.

Reviewers: jingham, zturner, boris.ulasevich

Reviewed by: jingham

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D53761

llvm-svn: 347974
2018-11-30 09:45:52 +00:00
Zachary Turner 117b1fa19a Don't type-erase the FunctionNameType or TypeClass enums.
This is similar to D53597, but following up with 2 more enums.
After this, all flag enums should be strongly typed all the way
through to the symbol files plugins.

Differential Revision: https://reviews.llvm.org/D53616

llvm-svn: 345314
2018-10-25 20:45:40 +00:00
Zachary Turner 991e44534a Don't type-erase the SymbolContextItem enumeration.
When we get the `resolve_scope` parameter from the SB API, it's a
`uint32_t`.  We then pass it through all of LLDB this way, as a uint32.
This is unfortunate, because it means the user of an API never actually
knows what they're dealing with.  We can call it something like
`resolve_scope` and have comments saying "this is a value from the
`SymbolContextItem` enumeration, but it makes more sense to just have it
actually *be* the correct type in the actual C++ type system to begin
with.  This way the person reading the code just knows what it is.

The reason to use integers instead of enumerations for flags is because
when you do bitwise operations on enumerations they get promoted to
integers, so it makes it tedious to constantly be casting them back
to the enumeration types, so I've introduced a macro to make this
happen magically.  By writing LLDB_MARK_AS_BITMASK_ENUM after defining
an enumeration, it will define overloaded operators so that the
returned type will be the original enum.  This should address all
the mechanical issues surrounding using rich enum types directly.

This way, we get a better debugger experience, and new users to
the codebase can get more easily acquainted with the codebase because
their IDE features can help them understand what the types mean.

Differential Revision: https://reviews.llvm.org/D53597

llvm-svn: 345313
2018-10-25 20:45:19 +00:00
Alexander Polyakov da0c081f7e Add new API to SBTarget and SBModule classes.
Summary: The new API allows to find a list of compile units related to target/module.

Reviewers: aprantl, clayborg

Reviewed By: aprantl

Subscribers: jingham, lldb-commits

Differential Revision: https://reviews.llvm.org/D48801

llvm-svn: 336200
2018-07-03 14:22:44 +00:00
Pavel Labath 470b286ee5 Modernize UUID class
Instead of a separate GetBytes + GetByteSize methods I introduce a
single GetBytes method returning an ArrayRef.

This is NFC cleanup now, but it should make handling arbitrarily-sized
UUIDs cleaner, should we choose to go that way. I also took the
opportunity to add some unit tests for this class.

llvm-svn: 335244
2018-06-21 15:07:43 +00:00
Pavel Labath 2272c4811f Use llvm::VersionTuple instead of manual version marshalling
Summary:
This has multiple advantages:
- we need only one function argument/instance variable instead of three
- no need to default initialize variables
- no custom parsing code
- VersionTuple has comparison operators, which makes version comparisons much
  simpler

Reviewers: zturner, friss, clayborg, jingham

Subscribers: emaste, lldb-commits

Differential Revision: https://reviews.llvm.org/D47889

llvm-svn: 334950
2018-06-18 15:02:23 +00:00
Pavel Labath 34cda14b09 Remove append parameter to FindGlobalVariables
Summary:
As discussed in https://bugs.llvm.org/show_bug.cgi?id=37317,
FindGlobalVariables does not properly handle the case where
append=false.  As this doesn't seem to be used in the tree, this patch
removes the parameter entirely.

Reviewers: clayborg, jingham, labath

Reviewed By: clayborg

Subscribers: aprantl, lldb-commits, kubamracek, JDevlieghere

Differential Revision: https://reviews.llvm.org/D46885
Patch by Tom Tromey <ttromey@mozilla.com>.

llvm-svn: 333639
2018-05-31 09:46:26 +00:00
Adrian Prantl 05097246f3 Reflow paragraphs in comments.
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
2018-04-30 16:49:04 +00:00
Zachary Turner 97206d5727 Rename Error -> Status.
This renames the LLDB error class to Status, as discussed
on the lldb-dev mailing list.

A change of this magnitude cannot easily be done without
find and replace, but that has potential to catch unwanted
occurrences of common strings such as "Error".  Every effort
was made to find all the obvious things such as the word "Error"
appearing in a string, etc, but it's possible there are still
some lingering occurences left around.  Hopefully nothing too
serious.

llvm-svn: 302872
2017-05-12 04:51:55 +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