[RF] Fix shadow warning in RooTemplateProxy. #8
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Old gcc issues a shadow warning if a local variable and a function have the same name.
hageboeck
pushed a commit
that referenced
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May 5, 2021
Before, MetaParser might have pointed to a StringRef whose storage
was gone, see asan failure in roottest/cling/other/runfileClose.C below.
This was caused by recursive uses of MetaParser; see stack trace below:
the inner recursion returned, but as the same MetaParser object was used
by both frames, the objects cursor now pointed to freed memory.
Instead, create a MetaParser (and MetaLexer) object per input. That way,
their lifetime corresponds to the lifetime of their input.
=================================================================
==529104==ERROR: AddressSanitizer: stack-use-after-return on address 0x7ffff3afd82a at pc 0x7fffea18df6d bp 0x7fffffff8170 sp 0x7fffffff8168
READ of size 1 at 0x7ffff3afd82a thread T0
[Detaching after fork from child process 529183]
#0 0x7fffea18df6c in cling::MetaLexer::Lex(cling::Token&) src/interpreter/cling/lib/MetaProcessor/MetaLexer.cpp:58:11
#1 0x7fffea190d7c in cling::MetaParser::lookAhead(unsigned int) src/interpreter/cling/lib/MetaProcessor/MetaParser.cpp:89:15
#2 0x7fffea190bd5 in cling::MetaParser::consumeToken() src/interpreter/cling/lib/MetaProcessor/MetaParser.cpp:49:5
#3 0x7fffea191d4d in cling::MetaParser::isLCommand(cling::MetaSema::ActionResult&) src/interpreter/cling/lib/MetaProcessor/MetaParser.cpp:147:9
#4 0x7fffea1914dd in cling::MetaParser::isCommand(cling::MetaSema::ActionResult&, cling::Value*) src/interpreter/cling/lib/MetaProcessor/MetaParser.cpp:123:12
#5 0x7fffea191216 in cling::MetaParser::isMetaCommand(cling::MetaSema::ActionResult&, cling::Value*) src/interpreter/cling/lib/MetaProcessor/MetaParser.cpp:101:33
#6 0x7fffea14e5aa in cling::MetaProcessor::process(llvm::StringRef, cling::Interpreter::CompilationResult&, cling::Value*, bool) src/interpreter/cling/lib/MetaProcessor/MetaProcessor.cpp:317:24
#7 0x7fffe99b67b7 in HandleInterpreterException(cling::MetaProcessor*, char const*, cling::Interpreter::CompilationResult&, cling::Value*) src/core/metacling/src/TCling.cxx:2431:29
#8 0x7fffe99bde30 in TCling::Load(char const*, bool) src/core/metacling/src/TCling.cxx:3454:10
#9 0x7ffff7865f11 in TSystem::Load(char const*, char const*, bool) src/core/base/src/TSystem.cxx:1941:27
#10 0x7ffff7b8a0e3 in TUnixSystem::Load(char const*, char const*, bool) src/core/unix/src/TUnixSystem.cxx:2789:20
#11 0x7fffd78dd08b (<unknown module>)
#12 0x7fffe9f8a5d9 in cling::IncrementalExecutor::executeWrapper(llvm::StringRef, cling::Value*) const src/interpreter/cling/lib/Interpreter/IncrementalExecutor.cpp:376:3
#13 0x7fffe9d73dc2 in cling::Interpreter::RunFunction(clang::FunctionDecl const*, cling::Value*) src/interpreter/cling/lib/Interpreter/Interpreter.cpp:1141:20
root-project#14 0x7fffe9d6e317 in cling::Interpreter::EvaluateInternal(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, cling::CompilationOptions, cling::Value*, cling::Transaction**, unsigned long) src/interpreter/cling/lib/Interpreter/Interpreter.cpp:1391:29
root-project#15 0x7fffe9d6c1fe in cling::Interpreter::process(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, cling::Value*, cling::Transaction**, bool) src/interpreter/cling/lib/Interpreter/Interpreter.cpp:819:9
root-project#16 0x7fffea151826 in cling::MetaProcessor::readInputFromFile(llvm::StringRef, cling::Value*, unsigned long, bool) src/interpreter/cling/lib/MetaProcessor/MetaProcessor.cpp:507:22
root-project#17 0x7fffe99b585b in TCling::ProcessLine(char const*, TInterpreter::EErrorCode*) src/core/metacling/src/TCling.cxx:2570:39
root-project#18 0x7fffe99bbfee in TCling::ProcessLineSynch(char const*, TInterpreter::EErrorCode*) src/core/metacling/src/TCling.cxx:3496:17
root-project#19 0x7ffff77203d3 in TApplication::ExecuteFile(char const*, int*, bool) src/core/base/src/TApplication.cxx:1608:30
root-project#20 0x7ffff771ebdf in TApplication::ProcessFile(char const*, int*, bool) src/core/base/src/TApplication.cxx:1480:11
root-project#21 0x7ffff771e385 in TApplication::ProcessLine(char const*, bool, int*) src/core/base/src/TApplication.cxx:1453:14
root-project#22 0x7ffff7f8157a in TRint::ProcessLineNr(char const*, char const*, int*) src/core/rint/src/TRint.cxx:766:11
root-project#23 0x7ffff7f802f0 in TRint::Run(bool) src/core/rint/src/TRint.cxx:424:22
root-project#24 0x4ff96d in main src/main/src/rmain.cxx:30:12
root-project#25 0x7ffff6e040b2 in __libc_start_main /build/glibc-YbNSs7/glibc-2.31/csu/../csu/libc-start.c:308:16
root-project#26 0x41f35d in _start (asan/bin/root.exe+0x41f35d)
Address 0x7ffff3afd82a is located in stack of thread T0 at offset 42 in frame
#0 0x7fffe99b3d8f in TCling::ProcessLine(char const*, TInterpreter::EErrorCode*) src/core/metacling/src/TCling.cxx:2456
This frame has 21 object(s):
[32, 56) 'sLine' (line 2462) <== Memory access at offset 42 is inside this variable
[96, 104) 'R__guard2471' (line 2471)
[128, 136) 'R__guard2488' (line 2488)
[160, 176) 'interpreterFlagsRAII' (line 2491)
[192, 240) 'result' (line 2511)
[272, 276) 'compRes' (line 2512)
[288, 312) 'mod_line' (line 2517)
[352, 376) 'aclicMode' (line 2518)
[416, 440) 'arguments' (line 2519)
[480, 504) 'io' (line 2520)
[544, 568) 'fname' (line 2521)
[608, 632) 'ref.tmp' (line 2547)
[672, 696) 'ref.tmp145' (line 2547)
[736, 768) 'code' (line 2555)
[800, 832) 'codeline' (line 2556)
[864, 1384) 'in' (line 2559)
[1520, 1552) 'ref.tmp176' (line 2562)
[1584, 1600) 'agg.tmp'
[1616, 1624) 'ref.tmp198' (line 2568)
[1648, 1664) 'agg.tmp207'
[1680, 1696) 'autoParseRaii' (line 2588)
HINT: this may be a false positive if your program uses some custom stack unwind mechanism, swapcontext or vfork
(longjmp and C++ exceptions *are* supported)
SUMMARY: AddressSanitizer: stack-use-after-return src/interpreter/cling/lib/MetaProcessor/MetaLexer.cpp:58:11 in cling::MetaLexer::Lex(cling::Token&)
Shadow bytes around the buggy address:
0x10007e757ab0: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757ac0: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757ad0: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757ae0: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757af0: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
=>0x10007e757b00: f5 f5 f5 f5 f5[f5]f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757b10: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757b20: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757b30: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757b40: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757b50: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
Shadow gap: cc
==529104==ABORTING
at src/interpreter/cling/lib/MetaProcessor/MetaLexer.cpp:49
at src/interpreter/cling/lib/MetaProcessor/MetaParser.cpp:41
compRes=@0x7ffff3afd910: cling::Interpreter::kSuccess, result=0x7ffff3afd8c0, disableValuePrinting=false)
at src/interpreter/cling/lib/MetaProcessor/MetaProcessor.cpp:314
input_line=0x7ffff3afd829 "#define XYZ 21", compRes=@0x7ffff3afd910: cling::Interpreter::kSuccess,
result=0x7ffff3afd8c0) at src/core/metacling/src/TCling.cxx:2431
error=0x7fffd78cb0f4 <x>) at src/core/metacling/src/TCling.cxx:2591
sync=false, err=0x7fffd78cb0f4 <x>) at src/core/base/src/TApplication.cxx:1472
line=0x7fffd78c9000 "#define XYZ 21", error=0x7fffd78cb0f4 <x>)
at src/core/base/src/TROOT.cxx:2328
from asan/roottest/cling/other/fileClose_C.so
filename=0x6070000f0fd0 "asan/roottest/cling/other/fileClose_C.so", flag=257)
at /home/axel/build/llvm/llvm-project/compiler-rt/lib/asan/../sanitizer_common/sanitizer_common_interceptors.inc:6270
at src/interpreter/cling/lib/Utils/PlatformPosix.cpp:118
permanent=false, resolved=true)
at src/interpreter/cling/lib/Interpreter/DynamicLibraryManager.cpp:184
at src/interpreter/cling/lib/Interpreter/Interpreter.cpp:1444
T=0x0) at src/interpreter/cling/lib/Interpreter/Interpreter.cpp:1560
at src/interpreter/cling/lib/MetaProcessor/MetaSema.cpp:57
actionResult=@0x7ffff39532b0: cling::MetaSema::AR_Success)
hageboeck
pushed a commit
that referenced
this pull request
Oct 28, 2021
This tutorial crashed with the following stacktrace when run
interactively. Avoiding to register a canvas with the same name
multiple times fixes the crash:
```
#8 0x00007f5b7876967d in TCanvas::Resize(char const*) (this=0x55e768e126c0) at ../graf2d/gpad/src/TCanvas.cxx:1740
#9 0x00007f5b3e90d668 in TRootCanvas::HandleContainerConfigure(Event_t*) (this=0x55e76852b460) at ../gui/gui/src/TRootCanvas.cxx:1789
#10 0x00007f5b3e8464fd in TGFrame::HandleEvent(Event_t*) (this=0x55e767938e70, event=0x7f5b79adff40) at ../gui/gui/src/TGFrame.cxx:476
#11 0x00007f5b3e7f4c9a in TGClient::HandleEvent(Event_t*) (this=0x55e768de2290, event=0x7f5b79adff40) at ../gui/gui/src/TGClient.cxx:846
#12 0x00007f5b3e7f531d in TGClient::ProcessOneEvent() (this=0x55e768de2290) at ../gui/gui/src/TGClient.cxx:656
#13 TGClient::ProcessOneEvent() (this=0x55e768de2290) at ../gui/gui/src/TGClient.cxx:648
root-project#14 0x00007f5b3e7f536b in TGClient::HandleInput() (this=0x55e768de2290) at ../gui/gui/src/TGClient.cxx:703
root-project#15 0x00007f5b8dcb0ff8 in TUnixSystem::DispatchOneEvent(bool) (this=0x55e75ccfd080, pendingOnly=<optimized out>) at ../core/unix/src/TUnixSystem.cxx:1067
root-project#16 0x00007f5b8dbd0dca in TSystem::ProcessEvents() (this=0x55e75ccfd080) at ../core/base/src/TSystem.cxx:424
root-project#17 0x00007f5b8130600d in ()
root-project#18 0x00007f5b79ae0450 in ()
root-project#19 0x00007f5b8de5215f in WrapperCall(Cppyy::TCppMethod_t, size_t, void*, void*, void*) (method=94452242807424, nargs=0, args_=0x7f5b79ae01d7, self=0x55e75ccfd080, result=0x7f5b79ae01d7) at ../bindings/pyroot/cppyy/cppyy-backend/clingwrapper/src/clingwrapper.cxx:778
root-project#20 0x00007f5b8de527cf in CallT<unsigned char> (args=<optimized out>, nargs=<optimized out>, self=<optimized out>, method=<optimized out>) at ../bindings/pyroot/cppyy/cppyy-backend/clingwrapper/src/clingwrapper.cxx:816
root-project#21 Cppyy::CallB(long, void*, unsigned long, void*) (method=<optimized out>, self=<optimized out>, nargs=<optimized out>, args=<optimized out>) at ../bindings/pyroot/cppyy/cppyy-backend/clingwrapper/src/clingwrapper.cxx:833
root-project#22 0x00007f5b8decdc0f in GILCallB (ctxt=0x7f5b79ae0430, self=<optimized out>, method=<optimized out>) at ../bindings/pyroot/cppyy/CPyCppyy/src/Executors.cxx:69
root-project#23 CPyCppyy::(anonymous namespace)::BoolExecutor::Execute(Cppyy::TCppMethod_t, Cppyy::TCppObject_t, CPyCppyy::CallContext*) (this=<optimized out>, method=<optimized out>, self=<optimized out>, ctxt=0x7f5b79ae0430) at ../bindings/pyroot/cppyy/CPyCppyy/src/Executors.cxx:148
root-project#24 0x00007f5b8deba4c9 in CPyCppyy::CPPMethod::ExecuteFast(void*, long, CPyCppyy::CallContext*) (self=<optimized out>, offset=<optimized out>, ctxt=<optimized out>, this=<optimized out>, this=<optimized out>) at ../bindings/pyroot/cppyy/CPyCppyy/src/CPPMethod.cxx:74
root-project#25 0x00007f5b8debd3a8 in CPyCppyy::CPPMethod::ExecuteProtected(void*, long, CPyCppyy::CallContext*) (this=this entry=0x55e760617f50, self=0x55e75ccfd080, offset=0, ctxt=0x7f5b79ae0430) at ../bindings/pyroot/cppyy/CPyCppyy/src/CPPMethod.cxx:149
root-project#26 0x00007f5b8debb6fa in CPyCppyy::CPPMethod::Execute(void*, long, CPyCppyy::CallContext*) (this=this entry=0x55e760617f50, self=self entry=0x55e75ccfd080, offset=<optimized out>, ctxt=ctxt entry=0x7f5b79ae0430) at ../bindings/pyroot/cppyy/CPyCppyy/src/CPPMethod.cxx:728
root-project#27 0x00007f5b8debc46c in CPyCppyy::CPPMethod::Call(CPyCppyy::CPPInstance*&, _object*, _object*, CPyCppyy::CallContext*) (this=0x55e760617f50, self= 0x7f5b8080ef50: 0x7f5b808043c0, args=0x7f5b8e1ab040, kwds=<optimized out>, ctxt=0x7f5b79ae0430) at ../bindings/pyroot/cppyy/CPyCppyy/src/CPPMethod.cxx:783
root-project#28 0x00007f5b8dec09fe in CPyCppyy::(anonymous namespace)::mp_call(CPyCppyy::CPPOverload*, PyObject*, PyObject*) (pymeth=0x7f5b8080ef40, args=0x7f5b8e1ab040, kwds=0x0) at ../bindings/pyroot/cppyy/CPyCppyy/src/CPPOverload.cxx:566
root-project#29 0x00007f5b8e941333 in _PyObject_MakeTpCall () at /usr/lib/libpython3.9.so.1.0
root-project#30 0x00007f5b8e93d218 in _PyEval_EvalFrameDefault () at /usr/lib/libpython3.9.so.1.0
root-project#31 0x00007f5b8e936fd9 in () at /usr/lib/libpython3.9.so.1.0
root-project#32 0x00007f5b8e948b8e in _PyFunction_Vectorcall () at /usr/lib/libpython3.9.so.1.0
root-project#33 0x00007f5b8e93aec9 in _PyEval_EvalFrameDefault () at /usr/lib/libpython3.9.so.1.0
root-project#34 0x00007f5b8e94896b in _PyFunction_Vectorcall () at /usr/lib/libpython3.9.so.1.0
root-project#35 0x00007f5b8e93858e in _PyEval_EvalFrameDefault () at /usr/lib/libpython3.9.so.1.0
root-project#36 0x00007f5b8e94896b in _PyFunction_Vectorcall () at /usr/lib/libpython3.9.so.1.0
root-project#37 0x00007f5b8e93858e in _PyEval_EvalFrameDefault () at /usr/lib/libpython3.9.so.1.0
root-project#38 0x00007f5b8e94896b in _PyFunction_Vectorcall () at /usr/lib/libpython3.9.so.1.0
root-project#39 0x00007f5b8e95795b in () at /usr/lib/libpython3.9.so.1.0
root-project#40 0x00007f5b8ea3cac6 in () at /usr/lib/libpython3.9.so.1.0
root-project#41 0x00007f5b8ea17554 in () at /usr/lib/libpython3.9.so.1.0
root-project#42 0x00007f5b8e62c259 in start_thread () at /usr/lib/libpthread.so.0
root-project#43 0x00007f5b8e7425e3 in clone () at /usr/lib/libc.so.6
```
hageboeck
pushed a commit
that referenced
this pull request
Sep 25, 2024
The test was dynamically allocating the array data members of the `Data` struct, but never deallocating them. This commit polishes the `Data` struct definition and ensures proper management of the data members. The previous way of writing data to the TTree was leading to a bad memory access in the ReadBasicPointer inlined function in TStreamerInfoReadBuffer.cxx while reading the `double*` array. In particular, the issue arises when accessing and then deallocating the array at the current index provided by the `TCompInfo` object. ``` Target 0: (repro.out) stopped. (lldb) Process 13498 stopped * thread #1, queue = 'com.apple.main-thread', stop reason = step in frame #0: 0x00000001044cf140 libRIO.so`int TStreamerInfo::ReadBuffer<char**>(this=<unavailable>, b=<unavailable>, arr=<unavailable>, compinfo=<unavailable>, first=<unavailable>, last=<unavailable>, narr=<unavailable>, eoffset=<unavailable>, arrayMode=0) at TStreamerInfoReadBuffer.cxx:923:65 [opt] 920 case TStreamerInfo::kOffsetP + TStreamerInfo::kLong: ReadBasicPointer(Long_t); continue; 921 case TStreamerInfo::kOffsetP + TStreamerInfo::kLong64: ReadBasicPointer(Long64_t); continue; 922 case TStreamerInfo::kOffsetP + TStreamerInfo::kFloat: ReadBasicPointer(Float_t); continue; -> 923 case TStreamerInfo::kOffsetP + TStreamerInfo::kDouble: ReadBasicPointer(Double_t); continue; 924 case TStreamerInfo::kOffsetP + TStreamerInfo::kUChar: ReadBasicPointer(UChar_t); continue; 925 case TStreamerInfo::kOffsetP + TStreamerInfo::kUShort: ReadBasicPointer(UShort_t); continue; 926 case TStreamerInfo::kOffsetP + TStreamerInfo::kUInt: ReadBasicPointer(UInt_t); continue; Target 0: (repro.out) stopped. (lldb) Process 13498 stopped * thread #1, queue = 'com.apple.main-thread', stop reason = step in frame #0: 0x00000001044cf184 libRIO.so`int TStreamerInfo::ReadBuffer<char**>(TBuffer&, char** const&, TStreamerInfo::TCompInfo* const*, int, int, int, int, int) [inlined] TBuffer::BufferSize(this=0x000060e00010ef00) const at TBuffer.h:98:41 [opt] 95 TObject *GetParent() const; 96 char *Buffer() const { return fBuffer; } 97 char *GetCurrent() const { return fBufCur; } -> 98 Int_t BufferSize() const { return fBufSize; } 99 void DetachBuffer() { fBuffer = nullptr; } 100 Int_t Length() const { return (Int_t)(fBufCur - fBuffer); } 101 void Expand(Int_t newsize, Bool_t copy = kTRUE); // expand buffer to newsize Target 0: (repro.out) stopped. (lldb) p fBufSize (Int_t) 32008 (lldb) s Process 13498 stopped * thread #1, queue = 'com.apple.main-thread', stop reason = step in frame #0: 0x00000001044cf194 libRIO.so`int TStreamerInfo::ReadBuffer<char**>(this=<unavailable>, b=<unavailable>, arr=<unavailable>, compinfo=<unavailable>, first=<unavailable>, last=<unavailable>, narr=<unavailable>, eoffset=<unavailable>, arrayMode=0) at TStreamerInfoReadBuffer.cxx:923:65 [opt] 920 case TStreamerInfo::kOffsetP + TStreamerInfo::kLong: ReadBasicPointer(Long_t); continue; 921 case TStreamerInfo::kOffsetP + TStreamerInfo::kLong64: ReadBasicPointer(Long64_t); continue; 922 case TStreamerInfo::kOffsetP + TStreamerInfo::kFloat: ReadBasicPointer(Float_t); continue; -> 923 case TStreamerInfo::kOffsetP + TStreamerInfo::kDouble: ReadBasicPointer(Double_t); continue; 924 case TStreamerInfo::kOffsetP + TStreamerInfo::kUChar: ReadBasicPointer(UChar_t); continue; 925 case TStreamerInfo::kOffsetP + TStreamerInfo::kUShort: ReadBasicPointer(UShort_t); continue; 926 case TStreamerInfo::kOffsetP + TStreamerInfo::kUInt: ReadBasicPointer(UInt_t); continue; Target 0: (repro.out) stopped. (lldb) s Process 13498 stopped * thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0xbebebebebebebeae) frame #0: 0x0000000107bac674 libclang_rt.asan_osx_dynamic.dylib`__asan::Allocator::Deallocate(void*, unsigned long, unsigned long, __sanitizer::BufferedStackTrace*, __asan::AllocType) + 76 libclang_rt.asan_osx_dynamic.dylib`__asan::Allocator::Deallocate: -> 0x107bac674 <+76>: casalb w8, w9, [x22] 0x107bac678 <+80>: cmp w8, #0x2 0x107bac67c <+84>: b.ne 0x107bac6f4 ; <+204> 0x107bac680 <+88>: mov x8, #-0x100000000 ; =-4294967296 Target 0: (repro.out) stopped. (lldb) bt * thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0xbebebebebebebeae) * frame #0: 0x0000000107bac674 libclang_rt.asan_osx_dynamic.dylib`__asan::Allocator::Deallocate(void*, unsigned long, unsigned long, __sanitizer::BufferedStackTrace*, __asan::AllocType) + 76 frame #1: 0x0000000107c0c444 libclang_rt.asan_osx_dynamic.dylib`wrap__ZdaPv + 232 frame #2: 0x00000001044d4a60 libRIO.so`int TStreamerInfo::ReadBuffer<char**>(this=<unavailable>, b=<unavailable>, arr=<unavailable>, compinfo=<unavailable>, first=<unavailable>, last=<unavailable>, narr=<unavailable>, eoffset=<unavailable>, arrayMode=0) at TStreamerInfoReadBuffer.cxx:923:65 [opt] frame #3: 0x0000000103ffc888 libRIO.so`TStreamerInfoActions::GenericReadAction(buf=0x000060e00010ef00, addr=0x0000602000056bd0, config=0x0000604000149910) at TStreamerInfoActions.cxx:195:45 frame #4: 0x0000000103caa5ec libRIO.so`TStreamerInfoActions::TConfiguredAction::operator()(this=0x00006030001693f0, buffer=0x000060e00010ef00, object=0x0000602000056bd0) const at TStreamerInfoActions.h:123:17 frame #5: 0x0000000103ca9ef8 libRIO.so`TBufferFile::ApplySequence(this=0x000060e00010ef00, sequence=0x000060600011ac20, obj=0x0000602000056bd0) at TBufferFile.cxx:3702:10 frame #6: 0x00000001064bc570 libTree.so`TBranchElement::ReadLeavesMemberBranchCount(this=0x0000619000566380, b=0x000060e00010ef00) at TBranchElement.cxx:4603:6 frame #7: 0x0000000106455ce4 libTree.so`TBranch::GetEntry(this=0x0000619000566380, entry=0, getall=0) at TBranch.cxx:1753:4 frame #8: 0x00000001064a1764 libTree.so`TBranchElement::GetEntry(this=0x0000619000566380, entry=0, getall=0) at TBranchElement.cxx:2783:27 frame #9: 0x000000010739915c libTreePlayer.so`ROOT::Detail::TBranchProxy::Read(this=0x00006110000c9580) at TBranchProxy.h:163:42 frame #10: 0x0000000107649ba8 libTreePlayer.so`(anonymous namespace)::TObjectArrayReader::At(this=0x0000603000169900, proxy=0x00006110000c9580, idx=1) at TTreeReaderArray.cxx:176:22 frame #11: 0x000000010000c2e4 repro.out`ROOT::Internal::TTreeReaderArrayBase::UntypedAt(this=0x000000016fdfe740, idx=1) const at TTreeReaderArray.h:41:62 frame #12: 0x000000010000c200 repro.out`TTreeReaderArray<double>::At(this=0x000000016fdfe740, idx=1) at TTreeReaderArray.h:205:54 frame #13: 0x00000001000065e0 repro.out`TTreeReaderArray<double>::operator[](this=0x000000016fdfe740, idx=1) at TTreeReaderArray.h:207:44 frame root-project#14: 0x0000000100007b48 repro.out`simpleTest() at repro.cpp:123:26 frame root-project#15: 0x0000000100007e10 repro.out`main at repro.cpp:128:5 frame root-project#16: 0x000000018c718274 dyld`start + 2840 ```
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Old gcc issues a shadow warning if a local variable and a function have the same name.