This could be the known bug where a CommandObject is scheduled while the same CommandObject is already deeper on the command stack. I tried digging up the bugreport for that, but I couldn't find it.
-- adrian > On Jan 31, 2020, at 3:59 PM, Vedant Kumar <vedant_ku...@apple.com> wrote: > > > >> On Mar 5, 2019, at 5:07 PM, Adrian Prantl via lldb-commits >> <lldb-commits@lists.llvm.org> wrote: >> >> Author: adrian >> Date: Tue Mar 5 17:07:45 2019 >> New Revision: 355466 >> >> URL: http://llvm.org/viewvc/llvm-project?rev=355466&view=rev >> Log: >> Replace debug-only assert with a plain old assert. >> >> Modified: >> lldb/trunk/source/Interpreter/CommandObject.cpp >> >> Modified: lldb/trunk/source/Interpreter/CommandObject.cpp >> URL: >> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Interpreter/CommandObject.cpp?rev=355466&r1=355465&r2=355466&view=diff >> ============================================================================== >> --- lldb/trunk/source/Interpreter/CommandObject.cpp (original) >> +++ lldb/trunk/source/Interpreter/CommandObject.cpp Tue Mar 5 17:07:45 2019 >> @@ -136,17 +136,15 @@ bool CommandObject::ParseOptions(Args &a >> } >> >> bool CommandObject::CheckRequirements(CommandReturnObject &result) { >> -#ifdef LLDB_CONFIGURATION_DEBUG >> // Nothing should be stored in m_exe_ctx between running commands as >> // m_exe_ctx has shared pointers to the target, process, thread and frame >> and >> // we don't want any CommandObject instances to keep any of these objects >> // around longer than for a single command. Every command should call >> - // CommandObject::Cleanup() after it has completed >> - assert(m_exe_ctx.GetTargetPtr() == NULL); >> - assert(m_exe_ctx.GetProcessPtr() == NULL); >> - assert(m_exe_ctx.GetThreadPtr() == NULL); >> - assert(m_exe_ctx.GetFramePtr() == NULL); >> -#endif >> + // CommandObject::Cleanup() after it has completed. >> + assert(!m_exe_ctx.GetTargetPtr()); > > Hi all, > > I'm actually hitting this assert now when I try debugging clang with a > sanitized lldb. Any advice appreciated! > > Stop hook #1 added. > (lldb) s > * thread #1, queue = 'com.apple.main-thread', stop reason = step in > * frame #0: 0x00000001044d2268 clang-10`clang::noteBottomOfStack() at > Stack.cpp:42:8 > frame #1: 0x0000000100002295 clang-10`main(argc_=64, > argv_=0x00007ffeefbff160) at driver.cpp:342:3 > frame #2: 0x00007fff722ba3d5 libdyld.dylib`start + 1 > > Assertion failed: (!m_exe_ctx.GetTargetPtr()), function CheckRequirements, > file > /Users/vsk/src/llvm-project-master/lldb/source/Interpreter/CommandObject.cpp, > line 153. > Stack dump: > 0. Program arguments: > /Users/vsk/src/builds/llvm-project-master-SAN/bin/lldb -o b main -o r -o > target stop-hook add -o bt -o v -o s -o s -- > /Users/vsk/src/builds/llvm-project-master-D/bin/clang-10 -cc1 -triple > x86_64-apple-macosx10.14.0 -Wdeprecated-objc-isa-usage > -Werror=deprecated-objc-isa-usage -emit-obj -disable-free -main-file-name > sqlite3.c -mrelocation-model pic -pic-level 2 -mthread-model posix > -mframe-pointer=all -fno-rounding-math -masm-verbose -munwind-tables > -target-sdk-version=10.14 -target-cpu penryn -dwarf-column-info > -debug-info-kind=standalone -dwarf-version=4 -debugger-tuning=lldb > -target-linker-version 556 -resource-dir > /Users/vsk/src/builds/llvm-project-master-RA/lib/clang/11.0.0 -isysroot > /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -I/usr/local/include > -internal-isystem > /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/local/include > -internal-isystem > /Users/vsk/src/builds/llvm-project-master-RA/lib/clang/11.0.0/include > -internal-externc-isystem > /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include -O2 > -fdebug-compilation-dir /Users/vsk/src/builds/llvm-project-master-RA > -ferror-limit 19 -fmessage-length 178 -stack-protector 1 -fblocks > -fencode-extended-block-signature -fregister-global-dtors-with-atexit > -fgnuc-version=4.2.1 -fobjc-runtime=macosx-10.14.0 -fmax-type-align=16 > -fdiagnostics-show-option -fcolor-diagnostics -vectorize-loops -vectorize-slp > -o /dev/null -x c /Users/vsk/Downloads/sqlite-amalgamation-3300100/sqlite3.c > zsh: abort ~/src/builds/llvm-project-master-SAN/bin/lldb -o "b main" -o > "r" -o -o "s" - > > vedant > > >> + assert(!m_exe_ctx.GetProcessPtr()); >> + assert(!m_exe_ctx.GetThreadPtr()); >> + assert(!m_exe_ctx.GetFramePtr()); >> >> // Lock down the interpreter's execution context prior to running the >> command >> // so we guarantee the selected target, process, thread and frame can't go >> >> >> _______________________________________________ >> lldb-commits mailing list >> lldb-commits@lists.llvm.org >> https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
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