676 Commits

Author SHA1 Message Date
Jonas Devlieghere a8ea595509 [lldb] Also include the array definition in Properties.inc
Right now our Properties.inc only generates the initializer for the
options list but not the array declaration boilerplate around it. As the
array definition is identical for all arrays, we might as well also let
the Properties.inc generate it alongside the initializers.

Unfortunately we cannot do the same for enums, as there's this magic
ePropertyExperimental, which needs to come at the end to be interpreted
correctly. Hopefully we can get rid of this in the future and do the
same for the property enums.

Differential revision: https://reviews.llvm.org/D65353

llvm-svn: 367238
2019-07-29 16:41:30 +00:00
Jonas Devlieghere 463a48e416 [TableGen] Move target properties into a separate file (NFC)
With the plugins having their own tablgen file, it makes sense to split
off the target properties as well.

llvm-svn: 367139
2019-07-26 18:14:08 +00:00
Jonas Devlieghere 971f9ca612 Let tablegen generate property definitions
Property definitions are currently defined in a PropertyDefinition array
and have a corresponding enum to index in this array. Unfortunately this
is quite error prone. Indeed, just today we found an incorrect merge
where a discrepancy between the order of the enum values and their
definition caused the test suite to fail spectacularly.

Tablegen can streamline the process of generating the property
definition table while at the same time guaranteeing that the enums stay
in sync. That's exactly what this patch does. It adds a new tablegen
file for the properties, building on top of the infrastructure that
Raphael added recently for the command options. It also introduces two
new tablegen backends: one for the property definitions and one for
their corresponding enums.

It might be worth mentioning that I generated most of the tablegen
definitions from the existing property definitions, by adding a dump
method to the struct. This seems both more efficient and less error
prone that copying everything over by hand. Only Enum properties needed
manual fixup for the EnumValues and DefaultEnumValue fields.

Differential revision: https://reviews.llvm.org/D65185

llvm-svn: 367058
2019-07-25 21:36:37 +00:00
Jonas Devlieghere 63e5fb76ec [Logging] Replace Log::Printf with LLDB_LOG macro (NFC)
This patch replaces explicit calls to log::Printf with the new LLDB_LOGF
macro. The macro is similar to LLDB_LOG but supports printf-style format
strings, instead of formatv-style format strings.

So instead of writing:

  if (log)
    log->Printf("%s\n", str);

You'd write:

  LLDB_LOG(log, "%s\n", str);

This change was done mechanically with the command below. I replaced the
spurious if-checks with vim, since I know how to do multi-line
replacements with it.

  find . -type f -name '*.cpp' -exec \
  sed -i '' -E 's/log->Printf\(/LLDB_LOGF\(log, /g' "{}" +

Differential revision: https://reviews.llvm.org/D65128

llvm-svn: 366936
2019-07-24 17:56:10 +00:00
Alex Langford bab7e3d78b [Expression] Move IRDynamicChecks to ClangExpressionParser
Summary:
IRDynamicChecks in its current form is specific to Clang since it deals
with the C language family. It is possible that we may want to
instrument code generated for other languages, but we can factor in a
more general mechanism to do so at a later time.

This decouples ObCLanguageRuntime from Expression!

Reviewers: compnerd, clayborg, jingham, JDevlieghere

Subscribers: mgorny, lldb-commits

Differential Revision: https://reviews.llvm.org/D64591

llvm-svn: 365853
2019-07-12 00:58:02 +00:00
Jonas Devlieghere f39c2e188d Change LaunchThread interface to return an expected.
Change the interface to return an expected, instead of taking a Status
pointer.

Differential revision: https://reviews.llvm.org/D64163

llvm-svn: 365226
2019-07-05 17:42:08 +00:00
Jim Ingham 8864b4360a Make sure the thread list is updated before you set the stop reason
on a thread.  When talking to some older gdb-remote stubs, We were getting
a stop reason from the stop reply packet and setting it on the relevant
thread before we updated the full stop list.  That would get discarded when
the full list was updated.

Also, if you already have a thread list when you go to see if there is an
Operating System plugin, and you do indeed load a new OS plugin, you have to
re-fetch the thread list or it will only show the raw threads.

Differential Revision: https://reviews.llvm.org/D62887

llvm-svn: 364666
2019-06-28 17:57:19 +00:00
Pavel Labath 7ada1c5300 Remove core loading timeout
Summary:
If target.preload-symbols is false, waiting for the process to "stop"
can take an arbitrarily long amount of time, because it will cause all
the debug info to be parsed (to compute the stop message showing the
function, its arguments, etc).

We were previously waiting for 10 seconds for the stop even to arrive,
which is a pretty long time, but it's not that hard to overcome with
huge debug info.

Since any arbitrary limit can be theoretically overcome with huge
debug_info and/or slow machine, and the stop even was sent 3 lines above
the wait, if we ever do not receive the stop even means we've got a bug
in lldb. Therefore, I remove the timeout on this wait completely.

No test because I don't know how to reproduce this without a
multi-gigabyte symbol file.

Reviewers: jingham, clayborg

Subscribers: aprantl, lldb-commits

Differential Revision: https://reviews.llvm.org/D63730

llvm-svn: 364276
2019-06-25 07:14:29 +00:00
Antonio Afonso 943faef1fa Add support to read aux vector values
Summary:
This is the second patch to improve module loading in a series that started here (where I explain the motivation and solution): https://reviews.llvm.org/D62499

I need to read the aux vector to know where the r_debug map with the loaded libraries are.
The AuxVector class was made generic so it could be reused between the POSIX-DYLD plugin and NativeProcess*. The class itself ended up in the ProcessUtility plugin.

Reviewers: clayborg, xiaobai, labath, JDevlieghere

Reviewed By: clayborg, labath, JDevlieghere

Subscribers: emaste, JDevlieghere, mgorny, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D62500

llvm-svn: 363098
2019-06-11 20:16:13 +00:00
Alex Langford e823bbe8d1 [Target] Remove Process::GetObjCLanguageRuntime
Summary:
In an effort to make Process more language agnostic, I removed
GetCPPLanguageRuntime from Process. I'm following up now with an equivalent
change for ObjC.

Differential Revision: https://reviews.llvm.org/D63052

llvm-svn: 362981
2019-06-10 20:53:23 +00:00
Alex Langford ddcd5b0a0f [Target] Remove unused header from Process
I forgot to remove this when I removed GetCPPLanguageRuntime from
Process

llvm-svn: 362885
2019-06-08 19:07:05 +00:00
Alex Langford 056f6f1856 [LanguageRuntime] Introduce LLVM-style casts
Summary:
Using llvm-style rtti gives us stronger guarantees around casting
LanguageRuntimes.

As discussed in D62755

Differential Revision: https://reviews.llvm.org/D62934

llvm-svn: 362884
2019-06-08 18:45:00 +00:00
Alex Langford 29975a2a5d [Target] Remove Process::GetCPPLanguageRuntime
Summary:
I want to remove this method because I think that Process should be
language agnostic, or at least, not have knowledge about specific language
runtimes. There is "GetLanguageRuntime()" which should be used instead. If the
caller a CPPLanguageRuntime, they should cast it as needed. Ideally, this
should only happen in plugins that need C++ specific knowledge.

The next step I would like to do is remove "GetObjCLanguageRuntime()" as well.
There are a lot more instances of that function being used, so I wanted to
upload this one first to get the general reception to this idea.

Reviewers: compnerd, davide, JDevlieghere, jingham, clayborg, labath, aprantl

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D62755

llvm-svn: 362544
2019-06-04 20:14:33 +00:00
Alex Langford 41dc5526a6 [Target] Generalize Process::IsPossibleDynamicValue
llvm-svn: 362154
2019-05-30 21:03:53 +00:00
Alex Langford 7d3e97fbe6 [Target] Sink some asserts into Process::GetLanguageRuntime
llvm-svn: 362032
2019-05-29 21:07:53 +00:00
Alex Langford 03e1a82f52 [Target] Introduce Process::GetLanguageRuntimes
Summary:
Currently there's not really a good way to iterate over the language runtimes a
process has. This is sometimes desirable (as seen in my change to Thread).
Additionally, there's not really a good reason to iterate over every available
language, but rather only over languages for which we have a plugin loaded.

Reviewers: JDevlieghere, davide, jingham

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D62562

llvm-svn: 361999
2019-05-29 18:08:22 +00:00
Alex Langford 96f02a8db8 [Process] Clean up some logic around LanguageRuntimes
llvm-svn: 361666
2019-05-24 19:39:50 +00:00
Jonas Devlieghere 09ad8c8f73 Fix integer literals which are cast to bool
This change replaces built-in types that are implicitly converted to
booleans.

Differential revision: https://reviews.llvm.org/D62284

llvm-svn: 361580
2019-05-24 00:44:33 +00:00
Jonas Devlieghere edb52e2e7d [Process] Fix another thread_result_t & nullptr incompatibility.
llvm-svn: 361548
2019-05-23 20:25:49 +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
Alex Langford 74eb76f6c3 [Target] Protect Processes' language runtimes map with a mutex
Summary:
From what I understand, it's possible for multiple threads to request
a specific language runtime (e.g. CPPLanguageRuntime). This leads to a data
race.

Reviewers: jingham, JDevlieghere, compnerd, clayborg

Differential Revision: https://reviews.llvm.org/D62169

llvm-svn: 361442
2019-05-22 23:01:18 +00:00
Greg Clayton df225764b7 Improve step over performance by not stopping at branches that are function calls and stepping into and them out of each one
Currently when we single step over a source line, we run and stop at every branch in the source line range. We can reduce the number of times we stop when stepping over by figuring out if any of these branches are function calls, and if so, ignore these branches. Since we are stepping over we can safely ignore these calls since they will return to the next instruction. Currently the step logic would stop at those branches (1st stop), single step into the branch (2nd stop), and then set a breakpoint at the return address (3rd stop), and then continue.

Differential Revision: https://reviews.llvm.org/D58678

llvm-svn: 360375
2019-05-09 20:39:34 +00:00
Jonas Devlieghere 8b3af63b89 [NFC] Remove ASCII lines from comments
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
2019-04-10 20:48:55 +00:00
Adrian Prantl 4c03ea14f2 Unify random timeouts throughout LLDB and make them configurable.
Since these timeouts guard against catastrophic error in debugserver,
I also increased all of them to the maximum value among them.

The motivation for this test was the observation that an asanified
LLDB would often exhibit seemingly random test failures that could be
traced back to debugserver packets getting out of sync. With this path
applied I can no longer reproduce the one particular failure mode that
I was investigating.

rdar://problem/49441261

Differential Revision: https://reviews.llvm.org/D60340

llvm-svn: 357829
2019-04-05 22:43:42 +00:00
Jonas Devlieghere 533fe617ac [Process] Use early returns in Process::WriteMemory (NFC)
I found the code of Process::WriteMemory particularly hard to follow
when reviewing Ismail's change in D60022. This simplifies the code and
hopefully prevents similar oversights in the future.

Differential revision: https://reviews.llvm.org/D60092

llvm-svn: 357428
2019-04-01 20:39:03 +00:00