This just moves the CommandLoader utility into the reproducer namespace
and makes it accessible outside the API layer. This is setting things up
for a bigger change.
llvm-svn: 371689
Originally the idea was for providers to be defined close to where they
are used. While this helped designing the providers in such a way that
they don't depend on each other, it also means that it's not possible to
access them from a central place. This proved to be a problem for some
providers and resulted in them living in the reproducer class.
The ProcessGDBRemote provider is the last remaining exception. This
patch makes things consistent and moves it into the reproducer like the
other providers.
llvm-svn: 371685
Add support for evaluating DW_OP_entry_value. This involves parsing
DW_TAG_call_site_parameter and wiring the information through to the expression
evaluator.
rdar://54496008
Differential Revision: https://reviews.llvm.org/D67376
llvm-svn: 371668
Summary:
InferiorCallPOSIX directly grabs a ClangASTContext from the Target it
has and does no error checking. I don't think these functions have a
reason to know about clang specifically. Additionally, using
`GetScratchTypeSystemForLanguage` forces us to do error checking since
it returns an Expected.
Differential Revision: https://reviews.llvm.org/D67427
llvm-svn: 371654
We never compare these directories (where ConstString would be good) and
essentially just convert this back to a normal string in the end. So we might
as well just use std::string. Also makes it easier to unittest this code
(which was the main motivation for this change).
llvm-svn: 371623
Summary:
This change ensures that the .dynsym section will be parsed even when there's already is a .symtab.
It is motivated because of minidebuginfo (https://sourceware.org/gdb/current/onlinedocs/gdb/MiniDebugInfo.html#MiniDebugInfo).
There it says:
Keep all the function symbols not already in the dynamic symbol table.
That means the .symtab embedded inside the .gnu_debugdata does NOT contain the symbols from .dynsym. But in order to put a breakpoint on all symbols we need to load both. I hope this makes sense.
My other patch D66791 implements support for minidebuginfo, that's why I need this change.
Reviewers: labath, espindola, alexshap
Subscribers: JDevlieghere, emaste, arichardson, MaskRay, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D67390
llvm-svn: 371599
This code is trying too hard and failing. Either the result of
gethostname() is canonical or it is not. If it is not, then trying to
canonicalize it is – for various reasons – a lost cause. For example, a
given machine might have multiple network interfaces with multiple
addresses per interface, each with a different canonical name.
Separably, the result of HostInfoPosix::GetHostname() and latency
thereof shouldn't depend on whether networking is up or down or what
network the machine happened to be attached to at any given moment (like
a laptop that travels between work and home).
https://reviews.llvm.org/D67230
llvm-svn: 371596
This patch adds basic support for DW_OP_convert[1] for integer
types. Recent versions of LLVM's optimizer may insert this opcode into
DWARF expressions. DW_OP_convert is effectively a type cast operation
that takes a reference to a base type DIE (or zero) and then casts the
value at the top of the DWARF stack to that type. Internally this
works by changing the bit size of the APInt that is used as backing
storage for LLDB's DWARF stack.
I managed to write a unit test for this by implementing a mock YAML
object file / module that takes debug info sections in yaml2obj
format.
[1] Typed DWARF stack. http://www.dwarfstd.org/ShowIssue.php?issue=140425.1
<rdar://problem/48167864>
Differential Revision: https://reviews.llvm.org/D67369
llvm-svn: 371532
This removes the CleanUp class and replaces its usages with llvm's
ScopeExit, which has similar semantics.
Differential revision: https://reviews.llvm.org/D67378
llvm-svn: 371474
ClangASTContext doesn't use m_persistent_variables in a way specific to
ClangPersistentVariables. Therefore, it should hold a unique pointer to
PersistentExpressionState instead of a ClangPersistentVariablesUP.
This also prevents you from pulling in a plugin header when including
ClangASTContext.h
Doing this exposed an implicit dependency in ObjCLanguage that was
corrected by including ClangModulesDeclVendor.h
llvm-svn: 371470
This is a fix for the issue described in r371144.
> On more than one occasion I've found this test got stuck during replay
> while waiting for a packet from debugserver when the debugger was in
> the process of being destroyed.
When the replay server is out of packets we should just disconnect so
the debugger doesn't have to do any cleanup that it wouldn't do during
capture.
llvm-svn: 371459
In April via r357829, Adrian unified timeouts across lldb and set the
default value high so that we wouldn't get timeouts on ASAN bots that
were running under load.
The library that the MacOSX SystemRuntime has functions that need
to take a lock, and if that lock is held already, those functions
will never complete; we're seeing the 15 second timeout being hit
with inferiors that are doing a lot of enqueuing and dequeuing of
libdispatch work items causing this deadlocking behavior.
This patch reverts to a very short timeout for these SystemRuntime
function calls, given the behavior of this library that they are
calling into. When lldb is built with AddressSanitizer enabled,
they will use the default 15 second timeout.
tl;dr: this reverts to the previous timeouts for these SystemRuntime
inf func calls.
<rdar://problem/54538149>
llvm-svn: 371280
Summary:
DumpDataExtractor uses ClangASTContext in order to get the proper llvm
fltSemantics for the type it needs so that it can dump floats in a more
precise way. However, there's no reason that this behavior needs to be
specific ClangASTContext. Instead, I think it makes sense to ask
TypeSystems for the float semantics for a type of a given size.
Differential Revision: https://reviews.llvm.org/D67239
llvm-svn: 371258
Summary:
This patch adds support of watchpoints to the old `ProcessWindows` plugin.
The `ProcessWindows` plugin uses the `RegisterContext` to set and reset
watchpoints. The `RegisterContext` has some interface to access watchpoints,
but it is very limited (e.g. it is impossible to retrieve the last triggered
watchpoint with it), that's why I have implemented a slightly different
interface in the `RegisterContextWindows`. Moreover, I have made the
`ProcessWindows` plugin responsible for search of a vacant watchpoint slot,
because watchpoints exist per-process (not per-thread), then we can place
the same watchpoint in the same slot in different threads. With this scheme
threads don't need to have their own watchpoint lists, and it simplifies
identifying of the last triggered watchpoint.
Reviewers: asmith, stella.stamenova, amccarth
Reviewed By: amccarth
Subscribers: labath, zturner, leonid.mashinskiy, abidh, JDevlieghere, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D67168
llvm-svn: 371166
The bugreport command exists to create domain-specific bug reports.
Currently it has one implementation for filing bugs on the unwinder. As
far as we can tell, it has never been of use. Although not exactly the
same as the reproducers, it's a bit confusing to have two parallel
command trees for (kind of) the same thing.
Differential revision: https://reviews.llvm.org/D65469
llvm-svn: 371132
Summary:
With the XCode project gone, there doesn't seem to be anything setting
this macro anymore -- and the macro wasn't doing much anyway.
Reviewers: jingham, sgraenitz
Subscribers: emaste, lldb-commits
Differential Revision: https://reviews.llvm.org/D66742
llvm-svn: 371018
Summary:
This patch makes it possible to unwind via breakpad STACK WIN records.
It is "basic" because two important features are missing:
- support for the .raSearch keyword
- support for multiple STACK WIN records within a single function
Right now, we just reject the .raSearch records, and always pick the
first record for the whole function
SymbolFileBreakpad, and so I think it can serve as a good example of
what is needed of the symbol file and unwinding machinery to make this
work.
However, it is already useful for unwinding in some situations, and it
sets up the general framework for the parsing of these kinds of records,
which reduces the size of the followup patches implementing the two
other components.
Reviewers: amccarth, rnk, markmentovai
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D67067
llvm-svn: 371017
plugin.
Unfortunately the test is currently XFAILed because of missing changes
to the clang driver.
Differential Revision: https://reviews.llvm.org/D67124
llvm-svn: 370931
We were printing the start_addr field, which is not correct, as in this
branch we are processing the memory described by cur_range. Print that
instead.
Ideally, in particular this case, the error message would also say
something about not being able to disassemble due to not having found
the module from the core file, but that is not easy to do right now, so
I'm leaving that for another time.
llvm-svn: 370898
We change num_bytes in this method, so this doesn't actually
log the parameter that we called the function with. No test
as we don't test logging code.
llvm-svn: 370887
Summary:
We got a radar that printing small floats is not very user-friendly in LLDB as we print them with up to
100 leading zeroes before starting to use scientific notation. This patch changes this by already using
scientific notation when we hit 6 padding zeroes by default and moves this value into a target setting
so that users can just set this number back to 100 if they for some reason preferred the old behaviour.
This new setting is influencing how we format data, so that's why we have to reset the data visualisation
cache when it is changed.
Note that we have always been using scientific notation for large numbers because it seems that
the LLVM implementation doesn't support printing out the padding zeroes for them. I would have fixed
that if it was trivial, but looking at the LLVM implementation for this it seems that this is not as trivial
as it sounds. I would say we look into this if we ever get a bug report about someone wanting to have
a large amount of trailing zeroes in their numbers instead of using scientific notation.
Fixes rdar://39744137
Reviewers: #lldb, clayborg
Reviewed By: clayborg
Subscribers: JDevlieghere, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D67001
llvm-svn: 370880
There is now std::shared_ptr passed around which is expensive for manycore
CPUs. Most of the times (except for 3 cases) it is now just std::moved with no
CPU locks needed. It also makes it possible to sort the keys (which is now not
needed much after D66398).
Differential revision: https://reviews.llvm.org/D67049
llvm-svn: 370863
The function had the same name as one of the member function, so
it was just copied to all classes so that the lookup works. We
could also give the function a more better and unique name
(because it's actually printing the register value and writing
to the stream, not writing to the register).
Also removes the unused return value.
llvm-svn: 370854
Summary: It's neither used or tested here and in swift-lldb, so let's get rid of it.
Reviewers: #lldb, davide
Reviewed By: #lldb, davide
Subscribers: davide, JDevlieghere, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D67116
llvm-svn: 370802
Remove the single instance of std::call_once() in lldbTarget library
with llvm::call_once(). The former fails to build on NetBSD when
combined with llvm::once_flag (which replaced std::once_flag
in r369618), and combining the two is probably generally incorrect
anyway.
llvm-svn: 370748
Summary:
The gui command requires curses support, which can be disabled at
compile time. This patch adds the ability to detect this situation in
the test suite and skip the test accordingly.
Reviewers: teemperor, jankratochvil
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D67073
llvm-svn: 370658
Summary:
This patch follows the spirit of D63594, and removes some null checks
for things which should be operating invariants. Specifically
{Read,Write}[GF]PR now no longer check whether the supplied buffers are
null, because they never are. After this, the Do*** versions of these
function no longer serve any purpose and are inlined into their callers.
Other cleanups are possible here too, but I am taking this one step at a
time because this involves a lot of architecture-specific code, which I
don't have the hardware to test on (I did do a build-test though).
Reviewers: mgorny, jankratochvil, omjavaid, alexandreyy, uweigand
Subscribers: nemanjai, javed.absar, kbarton, lldb-commits
Differential Revision: https://reviews.llvm.org/D66744
llvm-svn: 370653
This patches paves way for upcoming SVE RegisterInfo definitions. This is cosmetic change which allows us to define ARM64 RegisterInfo using macros.
In future we ll have define two different RegisterInfos to choose between SVE vs non-SVE RegisterInfo with decision being made at thread creation.
Differential Revision: https://reviews.llvm.org/D66934
llvm-svn: 370644
Summary:
Right now our argument completions are rather cryptic for command options as they only list the letters:
```
(lldb) breakpoint set -
Available completions:
-G
-C
-c
-d
-i
-o
-q
-t
-x
[...]
```
With the new completion API we can easily extend this with the flag description so that it looks like this now:
```
(lldb) breakpoint set -
Available completions:
-G -- The breakpoint will auto-continue after running its commands.
-C -- A command to run when the breakpoint is hit, can be provided more than once, the commands will get run in order left to right.
-c -- The breakpoint stops only if this condition expression evaluates to true.
-d -- Disable the breakpoint.
-i -- Set the number of times this breakpoint is skipped before stopping.
-o -- The breakpoint is deleted the first time it stop causes a stop.
-q -- The breakpoint stops only for threads in the queue whose name is given by this argument.
-t -- The breakpoint stops only for the thread whose TID matches this argument.
-x -- The breakpoint stops only for the thread whose index matches this argument.
```
The same happens with --long-options now.
Reviewers: #lldb, labath
Reviewed By: labath
Subscribers: labath, JDevlieghere, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D67063
llvm-svn: 370628
Summary:
We currently have several CommandObjects that manually reimplement the checking for a selected target
or a target in the execution context (which is the selected target when they are invoked). This patch removes
all these checks and replaces them by setting the eCommandRequiresTarget flag that Pavel suggested. With
this flag we are doing the same check but without having to duplicate this code in all these CommandObjects.
I also added a `GetSelectedTarget()` variant of the `GetSelectedOrDummyTarget()` function to the
CommandObject that checks that the flag is set and then returns a reference to the target. I didn't rewrite
all the `target` variables from `Target *` to `Target &` in this patch as last time this change caused a lot of merge
conflicts in Swift and I would prefer having that in a separate NFC commit.
Reviewers: labath, clayborg
Reviewed By: labath, clayborg
Subscribers: clayborg, JDevlieghere, jingham, amccarth, abidh, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D66863
llvm-svn: 370571
LLVMUserExpression doesn't use these variables and they are all specific to Clang.
Also removes m_const_object as this was actually never used by anyone (and Clang
didn't report it as we assigned it in the constructor which seems to count as use).
llvm-svn: 370440
Jonas Devlieghere