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llvm-svn: 369827
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Summary:
This patch makes the DIERef class always valid by default constructor
and operator bool. This allows one to express the validity of a DIERef
in the type system. Places which are working with potentially-invalid
DIERefs have been updated to use Optional<DIERef> instead.
The constructor taking a DWARFFormValue was not needed, as all places
which were constructing a DIERef this way were immediately converting it
into a DWARFDIE or a user_id. This can be done without constructing an
intermediate DIERef.
Reviewers: JDevlieghere, clayborg, aprantl
Subscribers: arphaman, lldb-commits
Differential Revision: https://reviews.llvm.org/D63399
llvm-svn: 363767
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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
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Summary:
This patch adds the ability to precisely address debug info in
situations when a single file can have more than one debug-info-bearing
sections (as is the case with type units in DWARF v4).
The changes here can be classified into roughly three categories:
- the code which addresses a debug info by offset gets an additional
argument, which specifies the section one should look into.
- the DIERef class also gets an additional member variable specifying
the section. This way, code dealing with DIERefs can know which
section is the object referring to.
- the user_id_t encoding steals one bit from the dwarf_id field to store
the section. This means the total number of separate object files
(apple .o, or normal .dwo) is limited to 2 billion, but that is fine
as it's not possible to hit that number without switching to DWARF64
anyway.
This patch is functionally equivalent to (and inspired by) the two
patches (D61503 and D61504) by Jan Kratochvil, but there are differences
in the implementation:
- it uses an enum instead of a bool flag to differentiate the sections
- it increases the size of DIERef struct instead of reducing the amount
of addressable debug info
- it sets up DWARFDebugInfo to store the units in a single vector
instead of two. This sets us up for the future in which type units can
also live in the debug_info section, and I believe it's cleaner
because there's no need for unit index remapping
There are no tests with this patch as this is essentially NFC until
we start parsing type units from the debug_types section.
Reviewers: JDevlieghere, clayborg, aprantl
Subscribers: arphaman, jankratochvil, lldb-commits
Differential Revision: https://reviews.llvm.org/D61908
llvm-svn: 360872
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apple and manual indexing code were creating a DIERef in a bunch of
places. Though the code itself is not much, it is also easy to simplify
by factoring out the DIERef creation. In HashedNameToDIE I create a
conversion operator from DIEInfo to DIERef, and in ManualDWARFIndex I
just create the DIERef in a global variable up-front.
This also reduces the diff in follow-up patches which change how DIERefs
are constructed.
llvm-svn: 360669
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Most of these are Dump functions that are never called, but there
is one instance of entire unused classes (DWARFDebugMacinfo and
DWARFDebugMacinfoEntry) which are also unreferenced in the codebase).
Differential Revision: https://reviews.llvm.org/D59276
llvm-svn: 356490
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Summary: DW_OP_GNU_addr_index has been renamed as DW_OP_addrx in the standard. clang produces DW_OP_addrx tags and with this change lldb starts to process them.
Reviewers: aprantl, jingham, davide, clayborg, serge-sans-paille
Reviewed By: aprantl
Subscribers: jdoerfert, dblaikie, labath, shafik, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D59004
llvm-svn: 355629
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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
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Summary:
r346165 introduced a bug, where we would fail to parse the size of an
array if that size happened to match an existing die offset.
The logic was:
if (DWARFDIE count = die.GetReferencedDie(DW_AT_count))
num_elements = compute_vla_size(count);
else
num_elements = die.GetUsigned(DW_AT_count); // a fixed-size array
The problem with this logic was that GetReferencedDie did not take the
form class of the attribute into account, and would happily return a die
reference for any form, if its value happened to match some die.
As this behavior is inconsistent with how llvm's DWARFFormValue class
operates, I chose to fix the problem by making our version of this class
match the llvm behavior. For this to work, I had to add an explicit form
class check to the .apple_XXX tables parsing code, because they do
(incorrectly?) use data forms as die references.
Reviewers: aprantl, clayborg
Subscribers: JDevlieghere, lldb-commits
Differential Revision: https://reviews.llvm.org/D55991
llvm-svn: 350086
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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
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Summary:
The llvm function is equivalent to this one. Where possible I tried to
replace const char* with llvm::StringRef to avoid extra strlen
computations. In most places, I was able to track the c string back to
the ConstString it was created from.
I also create a test that verifies we are able to lookup names with
unicode characters, as a bug in the llvm compiler (it accidentally used
a different hash function) meant this was not working until recently.
This also removes the unused ExportTable class.
Reviewers: aprantl, davide
Subscribers: JDevlieghere, lldb-commits
Differential Revision: https://reviews.llvm.org/D43596
llvm-svn: 325927
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Also found/fixed one bug identified by this warning in
RenderScriptx86ABIFixups.cpp where a string literal was being used in an
effort to provide a name for an instruction/register, but was instead
being passed as the bool 'isVolatile' parameter.
llvm-svn: 291198
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This updates getters and setters to use StringRef instead of
const char *. I tested the build on Linux, Windows, and OSX
and saw no build or test failures. I cannot test any BSD
or Android variants, however I expect the required changes
to be minimal or non-existant.
llvm-svn: 282079
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*** 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
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the right thing and break.
llvm-svn: 261950
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the xcode project file to catch switch statements that have a
case that falls through unintentionally.
Define LLVM_FALLTHROUGH to indicate instances where a case has code
and intends to fall through. This should be in llvm/Support/Compiler.h;
Peter Collingbourne originally checked in there (r237766), then
reverted (r237941) because he didn't have time to mark up all the
'case' statements that were intended to fall through. I put together
a patch to get this back in llvm http://reviews.llvm.org/D17063 but
it hasn't been approved in the past week. I added a new
lldb-private-defines.h to hold the definition for now.
Every place in lldb where there is a comment that the fall-through
is intentional, I added LLVM_FALLTHROUGH to silence the warning.
I haven't tried to identify whether the fallthrough is a bug or
not in the other places.
I haven't tried to add this to the cmake option build flags.
This warning will only work for clang.
This build cleanly (with some new warnings) on macosx with clang
under xcodebuild, but if this causes problems for people on other
configurations, I'll back it out.
llvm-svn: 260930
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This can happen with -gmodules tables when an anonymous struct is referred to.
llvm-svn: 257786
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* Create new dwo symbol file class
* Add handling for .dwo sections
* Change indexes in SymbolFileDWARF to store compile unit offset next to
DIE offset
* Propagate queries from dwarf compile unit to the dwo compile unit
where applicable
Differential revision: http://reviews.llvm.org/D12291
llvm-svn: 247132
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* Remove some unused code
* Remove usage of DWARFDebugInfoEntry::Attributes where usage isn't
reasonable
* Cleanup DWARFMappedHash with separating it to header and implementation
file and fixing the visibility of the functions
Differential revision: http://reviews.llvm.org/D12374
llvm-svn: 247131
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tables (like the .apple_namespaces) and it would cause us to index DWARF that
didn't need to be indexed.
Updated the MappedHash.h (generic Apple accelerator table) and the DWARF
specific one (HashedNameToDIE.h) to be up to date with the latest and
greatest hash table format.
llvm-svn: 142627
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index the DWARF. Also fixed an issue with memory accelerator tables with a
size of 1 where we would loop infinitely.
Added support for parsing the new .apple_namespaces section which gives us a
memory hash table for looking up namespaces.
llvm-svn: 141128
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up the implementation details of the on disk hash, these changed implement
the changes in the on disk table format.
llvm-svn: 140750
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hash tables. Renamed the DWARF sections to ".apple_names" and
".apple_types" until we get more buy in from other vendors.
llvm-svn: 140702
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llvm-svn: 138996
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llvm-svn: 138981
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