Commit Graph

127 Commits

Author SHA1 Message Date
Adrian Prantl 0e4c482124 Pass ConstString by value (NFC)
My apologies for the large patch. With the exception of ConstString.h
itself it was entirely produced by sed.

ConstString has exactly one const char * data member, so passing a
ConstString by reference is not any more efficient than copying it by
value. In both cases a single pointer is passed. But passing it by
value makes it harder to accidentally return the address of a local
object.

(This fixes rdar://problem/48640859 for the Apple folks)

Differential Revision: https://reviews.llvm.org/D59030

llvm-svn: 355553
2019-03-06 21:22:25 +00:00
Zachary Turner 80552918a9 Move Host/Symbols.cpp to Symbols/LocateSymbolFile.cpp
Given that we have a target named Symbols, one wonders why a
file named Symbols.cpp is not in this target.  To be clear,
the functions exposed from this file are really focused on
*locating* a symbol file on a given host, which is where the
ambiguity comes in.  However, it makes more sense conceptually
to be in the Symbols target. While some of the specific places
to search for symbol files might change depending on the Host,
this is not inherently true in the same way that, for example,
"accessing the file system" or "starting threads" is
fundamentally dependent on the Host.

PDBs, for example, recently became a reality on non-Windows platforms,
and it's theoretically possible that DSYMs could become a thing on non
MacOSX platforms (maybe in a remote debugging scenario). Other types of
symbol files, such as DWO, DWP, etc have never been tied to any Host
platform anyway.

After this patch, there is only one remaining dependency from
Host to Target.

Differential Revision: https://reviews.llvm.org/D58730

llvm-svn: 355032
2019-02-27 21:42:10 +00:00
Jonas Devlieghere 796ac80b86 Use std::make_shared in LLDB (NFC)
Unlike std::make_unique, which is only available since C++14,
std::make_shared is available since C++11. Not only is std::make_shared
a lot more readable compared to ::reset(new), it also performs a single
heap allocation for the object and control block.

Differential revision: https://reviews.llvm.org/D57990

llvm-svn: 353764
2019-02-11 23:13:08 +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
Jan Kratochvil 005a43e7c4 Fix symbols.enable-external-lookup description wording
D55859 changed "external tools or libraries" to "external sources" according to
Pavel Labath.  Now it is changed sort of back to "external tools and
repositories" according to Adrian Prantl.
	https://reviews.llvm.org/D55859#1345881

llvm-svn: 350479
2019-01-05 21:39:03 +00:00
Jan Kratochvil 4c993ce187 symbols.enable-external-lookup=false on all hosts (not just OSX)
There is already in use:
	lit/lit-lldb-init:
		settings set symbols.enable-external-lookup false
	packages/Python/lldbsuite/test/lldbtest.py:
		self.runCmd('settings set symbols.enable-external-lookup false')

But those are not in effect during MI part of the testsuite. Another problem is
that symbols.enable-external-lookup (read by GetEnableExternalLookup) has been
currently read only by LocateMacOSXFilesUsingDebugSymbols and therefore it had
no effect on Linux.

On Red Hat platforms (Fedoras, RHEL-7) there is DWZ in use and so
MiSyntaxTestCase-test_lldbmi_output_grammar FAILs due to:
	AssertionError: error: inconsistent pattern ''^.+?\n'' for state 0x5f
	(matched string: warning: (x86_64) /lib64/libstdc++.so.6 unsupported
	DW_FORM values: 0x1f20 0x1f21
It is the only testcase with this error. It happens due to:
	(lldb) target create "/lib64/libstdc++.so.6"
	Current executable set to '/lib64/libstdc++.so.6' (x86_64).
	(lldb) b main
	warning: (x86_64) /lib64/libstdc++.so.6 unsupported DW_FORM values: 0x1f20 0x1f21
	Breakpoint 1: no locations (pending).
	WARNING:  Unable to resolve breakpoint to any actual locations.
which happens only with gcc-base-debuginfo rpm installed (similarly for other packages).

It should also speed up the testsuite as it no longer needs to read
/usr/lib/debug symbols which have no effect (and should not have any effect) on
the testsuite results.

Differential Revision: https://reviews.llvm.org/D55859

llvm-svn: 350368
2019-01-03 23:11:06 +00:00
Jonas Devlieghere 672d2c1255 Remove comments after header includes.
This patch removes the comments following the header includes. They were
added after running IWYU over the LLDB codebase. However they add little
value, are often outdates and burdensome to maintain.

Differential revision: https://reviews.llvm.org/D54385

llvm-svn: 346625
2018-11-11 23:16:43 +00:00
Jonas Devlieghere 3a58d89819 [FileSystem] Add convenience method to check for directories.
Replace calls to LLVM's is_directory with calls to LLDB's FileSytem
class. For this I introduced a new convenience method that, like the
other methods, takes either a path or filespec. This still uses the LLVM
functions under the hood.

Differential revision: https://reviews.llvm.org/D54135

llvm-svn: 346375
2018-11-08 00:14:50 +00:00
Jonas Devlieghere 8f3be7a32b [FileSystem] Move path resolution logic out of FileSpec
This patch removes the logic for resolving paths out of FileSpec and
updates call sites to rely on the FileSystem class instead.

Differential revision: https://reviews.llvm.org/D53915

llvm-svn: 345890
2018-11-01 21:05:36 +00:00
Jonas Devlieghere dbd7fabaa0 [FileSystem] Remove Exists() from FileSpec
This patch removes the Exists method from FileSpec and updates its uses
with calls to the FileSystem.

Differential revision: https://reviews.llvm.org/D53845

llvm-svn: 345854
2018-11-01 17:09:25 +00:00
Jonas Devlieghere 46376966ea [FileSystem] Extend file system and have it use the VFS.
This patch extends the FileSystem class with a bunch of functions that
are currently implemented as methods of the FileSpec class. These
methods will be removed in future commits and replaced by calls to the
file system.

The new functions are operated in terms of the virtual file system which
was recently moved from clang into LLVM so it could be reused in lldb.
Because the VFS is stateful, we turned the FileSystem class into a
singleton.

Differential revision: https://reviews.llvm.org/D53532

llvm-svn: 345783
2018-10-31 21:49:27 +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
Tatyana Krasnukha e40db05b27 Replace pointer to C-array of PropertyDefinition with llvm::ArrayRef
Differential Revision: https://reviews.llvm.org/D52572

llvm-svn: 343181
2018-09-27 07:11:58 +00:00
Tatyana Krasnukha 8fe53c490a Replace "nullptr-terminated" C-arrays of OptionValueEnumeration with safer llvm::ArrayRef
Differential Revision: https://reviews.llvm.org/D49017

llvm-svn: 343130
2018-09-26 18:50:19 +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
Nico Weber b1cb0b7957 s/LLVM_ON_WIN32/_WIN32/, lldb
LLVM_ON_WIN32 is set exactly with MSVC and MinGW (but not Cygwin) in            
HandleLLVMOptions.cmake, which is where _WIN32 defined too.  Just use the        
default macro instead of a reinvented one.                                      
                                                                                
See thread "Replacing LLVM_ON_WIN32 with just _WIN32" on llvm-dev and cfe-dev.  
No intended behavior change.

llvm-svn: 329697
2018-04-10 13:33:45 +00:00
Adrian Prantl 1cc1c5f298 Introduce a setting to disable Spotlight while running the test suite
This is a more principled approach to disabling Spotlight .dSYM
lookups while running the testsuite, most importantly it also works
for the LIT-based tests, which I overlooked in my initial fix
(renaming the test build dir to lldb-tests.noindex).

Differential Revision: https://reviews.llvm.org/D44342

llvm-svn: 327330
2018-03-12 20:52:36 +00:00
Adrian Prantl 3cd29bcfe2 Rename clang.modules-cache-path to symbols.clang-modules-cache-path
I want to extend the properties on ModuleList to also contain other
more general settings and renaming the settings category to symbols
seems to be the least bad of choices.

llvm-svn: 327193
2018-03-10 01:11:25 +00:00
Adrian Prantl 235354be57 Make the clang module cache setting available without a target
It turns out that setting the clang module cache after LLDB has a
Target can be too late. In particular, the Swift language plugin needs
to know the setting without having access to a Target. This patch
moves the setting into the *LLDB* module cache, where it is a global
setting that is available before any Target is created and more
importantly, is shared between all Targets.

rdar://problem/37944432

Differential Revision: https://reviews.llvm.org/D43984

llvm-svn: 326628
2018-03-02 22:42:44 +00:00
Pavel Labath 5f19b90783 Move ArchSpec to the Utility module
The rationale here is that ArchSpec is used throughout the codebase,
including in places which should not depend on the rest of the code in
the Core module.

This commit touches many files, but most of it is just renaming of
 #include lines. In a couple of cases, I removed the #include ArchSpec
line altogether, as the file was not using it. In one or two places,
this necessitated adding other #includes like lldb-private-defines.h.

llvm-svn: 318048
2017-11-13 16:16:33 +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 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