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Summary:
I was recently surprised to learn that there is a total of 2 (two) users
of the register info definitions contained in the ABI plugins. Yet, the
defitions themselves span nearly 10kLOC.
The two users are:
- dwarf expression pretty printer
- the mechanism for augmenting the register info definitions obtained
over gdb-remote protocol (AugmentRegisterInfoViaABI)
Both of these uses need the DWARF an EH register numbers, which is
information that is already available in LLVM. This patch makes it
possible to do so.
It adds a GetMCRegisterInfo method to the ABI class, which every class
is expected to implement. Normally, it should be sufficient to obtain
the definitions from the appropriate llvm::Target object (for which I
provide a utility function), but the subclasses are free to construct it
in any way they deem fit.
We should be able to always get the MCRegisterInfo object from llvm,
with one important exception: if the relevant llvm target was disabled
at compile time. To handle this, I add a mechanism to disable the
compilation of ABI plugins based on the value of LLVM_TARGETS_TO_BUILD
cmake setting. This ensures all our existing are able to create their
MCRegisterInfo objects.
The new MCRegisterInfo api is not used yet, but the intention is to make
use of it in follow-up patches.
Reviewers: jasonmolenda, aprantl, JDevlieghere, tatyana-krasnukha
Subscribers: wuzish, nemanjai, mgorny, kbarton, atanasyan, lldb-commits
Differential Revision: https://reviews.llvm.org/D67965
llvm-svn: 372862
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A lot of comments in LLDB are surrounded by an ASCII line to delimit the
begging and end of the comment.
Its use is not really consistent across the code base, sometimes the
lines are longer, sometimes they are shorter and sometimes they are
omitted. Furthermore, it looks kind of weird with the 80 column limit,
where the comment actually extends past the line, but not by much.
Furthermore, when /// is used for Doxygen comments, it looks
particularly odd. And when // is used, it incorrectly gives the
impression that it's actually a Doxygen comment.
I assume these lines were added to improve distinguishing between
comments and code. However, given that todays editors and IDEs do a
great job at highlighting comments, I think it's worth to drop this for
the sake of consistency. The alternative is fixing all the
inconsistencies, which would create a lot more churn.
Differential revision: https://reviews.llvm.org/D60508
llvm-svn: 358135
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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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This patch removes the comments grouping header includes. They were
added after running IWYU over the LLDB codebase. However they add little
value, are often outdates and burdensome to maintain.
llvm-svn: 346626
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some methods in the ABI need a Process to do their work.
Instead of passing it in as a one-off argument to those
methods, this patch puts it in the base class and the methods
can retrieve if it needed.
Note that ABI's are sometimes built without a Process
(e.g. SBTarget::GetStackRedZoneSize) so it's entirely
possible that the process weak pointer will not be
able to reconsistitue into a strong pointer.
<rdar://problem/32526754>
llvm-svn: 306633
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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
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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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other minor fixes.
Differential Revision: http://reviews.llvm.org/D13684
llvm-svn: 250538
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This is more preparation for multiple different kinds of types from different compilers (clang, Pascal, Go, RenderScript, Swift, etc).
llvm-svn: 244689
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detct unwind loops but there was a code path through there (using
architecture default unwind plans) that didn't do the check, and
could end up with an infinite loop unwind. Move that code into a
separate method and call it from both places where it is needed.
Also remove the use of ABI::FunctionCallsChangeCFA in that check.
I thought about it a lot and none of the architecutres that we're
supporting today can have a looping CFA.
Since the unwinder isn't using ABI::FunctionCallsChangeCFA() and
ABI::StackUsesFrames(), and the unwinder was the only reason
those methods exists, I removed them from the ABI and all its
plugins.
<rdar://problem/17364005>
llvm-svn: 216992
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llvm-svn: 213566
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