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The getNameAsString interface causes a lot of temporary allocations.
The analysis if a decl is a cling-style wrapper can work only on a
simple declarations on the global scope.
This patch filters out complex declarations (eg in namespaces) and
checks only the identifier content.
The patch reduces the memory footprint difference shown in root-project/root#3012.
Duplicating Cling_Runtime and Cling_Runtime_Extra in both module.modulemap
and module.modulemap.build causes redefinition errors if -Dbuiltin_clang=Off.
We should not duplicate the cling runtime modules in both modulemaps.
The user might use utilities which print on cout and expects the output
to be shown immediately.
This patch automatically flushes std::cout after each execution of a wrapper.
This patch includes:
- Remove existing modulemap.overlay files
Cling now can generate virtual overlay files on-demand.
- Implement `-modulemap_overlay` flag to Cling
This flag is used to tell Cling the location of modulemaps to be
overlayed. (eg. stl.modulemap, libc.modulemap)
- Generate and load virtual modulemap in Cling
It is in Interpreter constructor, happens as part of cxxmodules
initialization step.
- Implement an interface to Clang CompilerInvocation which can take FileSystem pointer
Previously, Clang only took a "string of filenames" which clearly doesn't
work for our usecase. We already discussed this new interface at
modules meeting, so this change will land upstream.
- Add a file existence check in Clang
When compiling a pcm and when Clang saw the #include with which pcm was available
(or being generated implicitly), Clang was putting a notation of the full path to this pcm.
This caused an error when build directory was deleted, because the path didn't exist anymore.
This patch enables modules to be binary distributed, and to make it
work in CMSSW enviroment.
This patch contains two functionality:
1. Autoloading of dynamic symbols for system headers
There is three kind of symbols in shared object file, which is 1
normal symbols, 2 dynamic symbols, and 3 hidden visibility symbols.
Linker doesn't care about 3, but should take care (of course) 1 and
2. For system headers, often symbols are defined in .dynsym section
which means they are 2 dynamic symbols. This patch adds support of
autoloading those symbols. We fallback to resolving dynamic symbols
from system headers only if we couldn't resolve from normal symbol
table, as the initialization of header search is expensive (iterating
through all system headers)
2. Register callback from IncrementalExecutor
Previously, LazyFunctionCreatorAutoload was getting callback only
from DynamicLibraryManager::loadLibrary. This was enough for fixing
tests, but is insufficient to handle "symbol <something> unresolved
while linking function" errors as those errors are emitted from
IncrementalExecutor. Adding a callback from IncrementalExecutor
enables us to unresolved symbols.
It fixes these kind of errors:
`IncrementalExecutor::executeFunction: symbol '_ZN7TCanvasC1EPKcS1_iiii' unresolved while linking function '_GLOBAL__sub_I_cling_module_8'!`
When cling is embedded and the plugins are linked statically we can rely
on the initialization of the Preprocessor to register the pragmas.
Currently, due to the current implementation deficiency we cannot rely
on the same mechanism when loading the plugins as shared objects.
This patch fixes the failing cling test.
The new release includes some improvements in both Forward and
Reverse mode:
* Support `x += y`, `x -= y`, `x *= y`, `x /= y`, `x++`, `x--`, `++x`, `--x`
in forward mode.
* Reduce emission of unused expressions
* Add a special `#pragma clad ON/OFF/DEFAULT` to annotate regions which
contain derivatives
* Various small optimizations
See more at: https://github.com/vgvassilev/clad/blob/v0.4/docs/ReleaseNotes.md
This reverts commit 0f583c7ef0173fba1caa7680188e7bc767f5d97d.
We need this change because whoever uses MetaParser.h will not be
able to compile their program. MetaParser.h includes MetaLexer.h.
This feature can be enabled by setting an env variable ROOT_CLING_TIMING.
It prints some information about how much time different parts of clang
take.
We use the target clingInterpreter in a few places as a
general dependency rule making sure the cling infrastructure is
already built.
In some cases, such as clad, the highly parallel builds trigger
build of clad before clangSema, clangBasic and clangAST are built.
This patch ensures the right dependencies are in order.
static, static inline, always_inline, and extern inline functions can
always be deferred. Normal inline functions can be deferred in C99/C++.
Implicit template instantiations can also be deferred in C++.
This patch changes the linkage of the declarations from strong to weak.
It allows clang to defer the deserialization from pch/pcm until their use.
This fixes https://sft.its.cern.ch/jira/browse/ROOT-9672 by having
cling::Interpreter::DeclareCFunction return the transaction containing the
compiled code.
With the previous code, cling::Interpreter::compileFunction will get confused by
transaction created during the callbacks executed during the
cling::IncrementalParser::commitTransaction of the main transaction.
Reproducer:
With a main composed of 'only':
int main(int argc, char ** argv)
{
char const * class_string = (argc == 2) ? argv[1] : "std::vector<int>";
auto const result [[gnu::unused]] = TClass::GetClass(class_string);
return 0;
}
which is a representation of real use case (in a more complex setup) in ART.
We were getting:
Error in <TClingCallFunc::make_wrapper>: Failed to compile
==== SOURCE BEGIN ====
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wformat-security"
__attribute__((used)) extern "C" void __cf_0(void* obj, int nargs, void** args, void* ret)
{
if (ret) {
(*(TStreamerInfo**)ret) = new TStreamerInfo();
return;
}
else {
new TStreamerInfo();
return;
}
}
#pragma clang diagnostic pop
==== SOURCE END ====
Error in <TClingCallFunc::ExecT>: Called with no wrapper, not implemented!
Error in <TVirtualStreamerInfo::Factory>: The plugin handler for TVirtualStreamerInfo was found but failed to create the factory object!
The reason is that during TClingCallFunc::make_wrapper, the call to cling::Interpreter::compileFunction ends with:
if (const llvm::GlobalValue* GV
= getLastTransaction()->getModule()->getNamedValue(name))
However in the 'broken' case, the getLastTransaction does not return the transaction for the code being compiled by DeclareCFunction but instead the one used/created at:
#0 cling::IncrementalParser::endTransaction (this=0x4a2980, T=0x8c0fb0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/IncrementalParser.cpp:345
#1 0x00007fffeebc7899 in cling::Interpreter::PushTransactionRAII::pop (this=0x7fffffffcb00) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:111
#2 0x00007fffeebc785e in cling::Interpreter::PushTransactionRAII::~PushTransactionRAII (this=0x7fffffffcb00, __in_chrg=<optimized out>)
at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:106
#3 0x00007fffeebeb659 in cling::LookupHelper::findScope (this=0x4a9dd0, className=..., diagOnOff=cling::LookupHelper::NoDiagnostics, resultType=0x7fffffffcd08, instantiateTemplate=false)
at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/LookupHelper.cpp:466
#4 0x00007fffeeabe0df in TCling::CheckClassInfo (this=0x4a0550, name=<optimized out>, autoload=<optimized out>, isClassOrNamespaceOnly=<optimized out>)
at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TCling.cxx:3630
#5 0x00007ffff7c3040d in TClass::Init (this=this@entry=0xdafd20, name=name@entry=0x7ffff7cb7638 "TGlobal", cversion=cversion@entry=2, typeinfo=typeinfo@entry=0x7ffff7d8b6d8 <typeinfo for TGlobal>, isa=isa@entry=0x477430,
dfil=dfil@entry=0x7ffff7cb8cab "TGlobal.h", ifil=<optimized out>, dl=<optimized out>, il=<optimized out>, givenInfo=<optimized out>, silent=<optimized out>)
at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TClass.cxx:1431
#6 0x00007ffff7c3a1b8 in TClass::TClass (this=0xdafd20, name=0x7ffff7cb7638 "TGlobal", cversion=<optimized out>, info=..., isa=0x477430, dfil=0x7ffff7cb8cab "TGlobal.h",
ifil=0x7ffff7cccf88 "/local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TGlobal.cxx", dl=27, il=25, silent=false) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TClass.cxx:1273
#7 0x00007ffff7c3a72a in ROOT::CreateClass (cname=0x7ffff7cb7638 "TGlobal", id=id@entry=2, info=..., isa=isa@entry=0x477430, dfil=dfil@entry=0x7ffff7cb8cab "TGlobal.h",
ifil=ifil@entry=0x7ffff7cccf88 "/local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TGlobal.cxx", dl=27, il=25) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TClass.cxx:5607
#8 0x00007ffff7c4b552 in ROOT::Internal::TDefaultInitBehavior::CreateClass (il=25, dl=27, ifil=0x7ffff7cccf88 "/local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TGlobal.cxx", dfil=0x7ffff7cb8cab "TGlobal.h",
isa=0x477430, info=..., id=2, cname=<optimized out>, this=0x7ffff7da7508 <ROOT::Internal::DefineBehavior(void*, void*)::theDefault>) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/Rtypes.h:176
#9 ROOT::TGenericClassInfo::GetClass (this=0x7ffff7dab660 <ROOT::GenerateInitInstanceLocal(TGlobal const*)::instance>) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TGenericClassInfo.cxx:250
#10 0x00007ffff7b1a2d8 in TGlobal::Class () at /home/pcanal/root_builds/v6-14-00-patches/opt/core/base/G__Core.cxx:17156
#11 0x00007ffff7ac01de in TGlobal::IsA (this=0xee3bc0) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/TGlobal.h:48
#12 TGlobal::CheckTObjectHashConsistency (this=0xee3bc0) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/TGlobal.h:48
#13 0x00007ffff7be9dcd in TObject::CheckedHash (this=0xee3bc0) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/TObject.h:314
#14 THashTable::GetCheckedHashValue (this=0xe65a20, obj=0xee3bc0) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/THashTable.h:94
#15 THashTable::Add (this=0xe65a20, obj=0xee3bc0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/cont/src/THashTable.cxx:96
#16 0x00007ffff7be6bf1 in THashList::AddLast (this=this@entry=0x5be690, obj=obj@entry=0xee3bc0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/cont/src/THashList.cxx:100
#17 0x00007ffff7c4e0d1 in TListOfDataMembers::AddLast (this=0x5be690, obj=0xee3bc0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TListOfDataMembers.cxx:103
#18 0x00007ffff7ab8785 in TList::Add (obj=0xee3bc0, this=0x5be690) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/TList.h:87
#19 TROOT::GetListOfGlobals (this=0x7ffff7da7a60 <ROOT::Internal::GetROOT1()::alloc>, load=load@entry=false) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/base/src/TROOT.cxx:1767
#20 0x00007fffeeab1058 in TCling::HandleNewDecl (this=0x4a0550, DV=0xedf238, isDeserialized=isDeserialized@entry=true, modifiedTClasses=...) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TCling.cxx:555
#21 0x00007fffeeabb785 in TCling::UpdateListsOnCommitted (this=0x4a0550, T=...) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TCling.cxx:6115
#22 0x00007fffeebd0103 in cling::MultiplexInterpreterCallbacks::TransactionCommitted (this=0x57fe20, T=...) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/MultiplexInterpreterCallbacks.h:76
#23 0x00007fffeed05d71 in cling::IncrementalParser::commitTransaction (this=0x4a2980, PRT=..., ClearDiagClient=true) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/IncrementalParser.cpp:532
#24 0x00007fffeed06399 in cling::IncrementalParser::Compile (this=0x4a2980, input=..., Opts=...) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/IncrementalParser.cpp:663
#25 0x00007fffeebcbc4e in cling::Interpreter::DeclareInternal (this=0x4a0f30, input=..., CO=..., T=0x7fffffffd680) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:1195
#26 0x00007fffeebca8e8 in cling::Interpreter::declare (this=0x4a0f30, input=..., T=0x7fffffffd680) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:823
#27 0x00007fffeebcb560 in cling::Interpreter::DeclareCFunction (this=0x4a0f30, name=..., code=..., withAccessControl=true) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:1096
#28 0x00007fffeebcb862 in cling::Interpreter::compileFunction (this=0x4a0f30, name=..., code=..., ifUnique=false, withAccessControl=true)
at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:1140
#29 0x00007fffeeafb83c in TClingCallFunc::compile_wrapper (withAccessControl=true, wrapper=..., wrapper_name=..., this=0xcf3c10) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TClingCallFunc.cxx:270
#30 TClingCallFunc::make_wrapper (this=this@entry=0xcf3c10) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TClingCallFunc.cxx:1096
#31 0x00007fffeeafbcb8 in TClingCallFunc::IFacePtr (this=this@entry=0xcf3c10) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TClingCallFunc.cxx:2233
#32 0x00007fffeeafbe83 in TClingCallFunc::ExecT<long> (address=0x0, this=0xcf3c10) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TClingCallFunc.cxx:2045
#33 TClingCallFunc::ExecInt (this=0xcf3c10, address=0x0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TClingCallFunc.cxx:2065
#34 0x00007ffff7c56e8d in TMethodCall::Execute (this=0xd97710, object=<optimized out>, retLong=@0x7fffffffd958: 0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TMethodCall.cxx:457
#35 0x0000000000401009 in TMethodCall::Execute(long&) ()
#36 0x00000000004010ea in long TPluginHandler::ExecPluginImpl<>() ()
#37 0x000000000040106d in long TPluginHandler::ExecPlugin<>(int) ()
#38 0x0000000000400e21 in mytest() ()
#39 0x0000000000400e92 in main ()
