petrhosek wrote:

We also saw a build failure on our Linux builders:
```
/b/s/w/ir/x/w/rc/cxx-rbew3r8iaxj/reclient-cxx-wrapper.sh 
/b/s/w/ir/x/w/cipd/clang/bin/clang++ --sysroot=/b/s/w/ir/x/w/cipd/linux 
-DGTEST_HAS_RTTI=0 -DHAVE_ROUND -DLIBXML_STATIC -D_GNU_SOURCE 
-D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS 
-I/b/s/w/ir/x/w/llvm_build/tools/lldb/source/Plugins/Process/Utility 
-I/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility 
-I/b/s/w/ir/x/w/llvm-llvm-project/lldb/include 
-I/b/s/w/ir/x/w/llvm_build/tools/lldb/include 
-I/b/s/w/ir/x/w/llvm_build/include 
-I/b/s/w/ir/x/w/llvm-llvm-project/llvm/include 
-I/b/s/w/ir/x/w/install-cpython-x86_64-linux-gnu/include/python3.11 
-I/b/s/w/ir/x/w/llvm-llvm-project/llvm/../clang/include 
-I/b/s/w/ir/x/w/llvm_build/tools/lldb/../clang/include 
-I/b/s/w/ir/x/w/llvm-llvm-project/lldb/source 
-I/b/s/w/ir/x/w/llvm_build/tools/lldb/source -isystem 
/b/s/w/ir/x/w/install-zlib-x86_64-linux-gnu/include -isystem 
/b/s/w/ir/x/w/install-zstd-x86_64-linux-gnu/include -isystem 
/b/s/w/ir/x/w/install-libxml2-x86_64-linux-gnu/include/libxml2 -isystem 
/b/s/w/ir/x/w/install-libedit-x86_64-linux-gnu/include -fPIC 
-fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time 
-Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter 
-Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic 
-Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough 
-Wcovered-switch-default -Wno-noexcept-type -Wno-unnecessary-virtual-specifier 
-Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment 
-Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported 
-fdiagnostics-color -ffunction-sections -fdata-sections -Wno-unknown-pragmas 
-Wno-strict-aliasing -Wno-vla-extension -O3 -DNDEBUG -std=c++17  
-fno-exceptions -funwind-tables -fno-rtti -MD -MT 
tools/lldb/source/Plugins/Process/Utility/CMakeFiles/lldbPluginProcessUtility.dir/LinuxSignals.cpp.o
 -MF 
tools/lldb/source/Plugins/Process/Utility/CMakeFiles/lldbPluginProcessUtility.dir/LinuxSignals.cpp.o.d
 -o 
tools/lldb/source/Plugins/Process/Utility/CMakeFiles/lldbPluginProcessUtility.dir/LinuxSignals.cpp.o
 -c 
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:73:3:
 error: use of undeclared identifier 'SI_DETHREAD'; did you mean 'SIGEV_THREAD'?
   73 |   ADD_LINUX_SIGNAL(1,      "SIGHUP",       false,    true,   true,   
"hangup");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:29:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |                             ^~~~~~~~~~~
/b/s/w/ir/x/w/cipd/linux/usr/include/x86_64-linux-gnu/bits/siginfo.h:340:3: 
note: 'SIGEV_THREAD' declared here
  340 |   SIGEV_THREAD,                 /* Deliver via thread creation.  */
      |   ^
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:73:3:
 error: static assertion failed due to requirement 'SIGEV_THREAD == -7': Value 
mismatch for signal code SI_DETHREAD
   73 |   ADD_LINUX_SIGNAL(1,      "SIGHUP",       false,    true,   true,   
"hangup");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:29:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |   
~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   58 |               "sent by execve() killing subsidiary threads",            
       \
      |               
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   59 |               SignalCodePrintOption::Sender);                           
       \
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:34:17:
 note: expanded from macro 'ADD_SIGCODE'
   34 |   static_assert(code_name == code_value,                                
       \
      |                 ^~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:73:3:
 note: expression evaluates to '2 == -7'
   73 |   ADD_LINUX_SIGNAL(1,      "SIGHUP",       false,    true,   true,   
"hangup");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:3:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   58 |               "sent by execve() killing subsidiary threads",            
       \
      |               
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   59 |               SignalCodePrintOption::Sender);                           
       \
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:34:27:
 note: expanded from macro 'ADD_SIGCODE'
   34 |   static_assert(code_name == code_value,                                
       \
      |                 ~~~~~~~~~~^~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:74:3:
 error: use of undeclared identifier 'SI_DETHREAD'; did you mean 'SIGEV_THREAD'?
   74 |   ADD_LINUX_SIGNAL(2,      "SIGINT",       true,     true,   true,   
"interrupt");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:29:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |                             ^~~~~~~~~~~
/b/s/w/ir/x/w/cipd/linux/usr/include/x86_64-linux-gnu/bits/siginfo.h:340:3: 
note: 'SIGEV_THREAD' declared here
  340 |   SIGEV_THREAD,                 /* Deliver via thread creation.  */
      |   ^
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:74:3:
 error: static assertion failed due to requirement 'SIGEV_THREAD == -7': Value 
mismatch for signal code SI_DETHREAD
   74 |   ADD_LINUX_SIGNAL(2,      "SIGINT",       true,     true,   true,   
"interrupt");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:29:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |   
~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   58 |               "sent by execve() killing subsidiary threads",            
       \
      |               
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   59 |               SignalCodePrintOption::Sender);                           
       \
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:34:17:
 note: expanded from macro 'ADD_SIGCODE'
   34 |   static_assert(code_name == code_value,                                
       \
      |                 ^~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:74:3:
 note: expression evaluates to '2 == -7'
   74 |   ADD_LINUX_SIGNAL(2,      "SIGINT",       true,     true,   true,   
"interrupt");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:3:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   58 |               "sent by execve() killing subsidiary threads",            
       \
      |               
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   59 |               SignalCodePrintOption::Sender);                           
       \
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:34:27:
 note: expanded from macro 'ADD_SIGCODE'
   34 |   static_assert(code_name == code_value,                                
       \
      |                 ~~~~~~~~~~^~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:75:3:
 error: use of undeclared identifier 'SI_DETHREAD'; did you mean 'SIGEV_THREAD'?
   75 |   ADD_LINUX_SIGNAL(3,      "SIGQUIT",      false,    true,   true,   
"quit");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:29:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |                             ^~~~~~~~~~~
/b/s/w/ir/x/w/cipd/linux/usr/include/x86_64-linux-gnu/bits/siginfo.h:340:3: 
note: 'SIGEV_THREAD' declared here
  340 |   SIGEV_THREAD,                 /* Deliver via thread creation.  */
      |   ^
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:75:3:
 error: static assertion failed due to requirement 'SIGEV_THREAD == -7': Value 
mismatch for signal code SI_DETHREAD
   75 |   ADD_LINUX_SIGNAL(3,      "SIGQUIT",      false,    true,   true,   
"quit");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:29:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |   
~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   58 |               "sent by execve() killing subsidiary threads",            
       \
      |               
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   59 |               SignalCodePrintOption::Sender);                           
       \
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:34:17:
 note: expanded from macro 'ADD_SIGCODE'
   34 |   static_assert(code_name == code_value,                                
       \
      |                 ^~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:75:3:
 note: expression evaluates to '2 == -7'
   75 |   ADD_LINUX_SIGNAL(3,      "SIGQUIT",      false,    true,   true,   
"quit");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:3:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   58 |               "sent by execve() killing subsidiary threads",            
       \
      |               
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   59 |               SignalCodePrintOption::Sender);                           
       \
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:34:27:
 note: expanded from macro 'ADD_SIGCODE'
   34 |   static_assert(code_name == code_value,                                
       \
      |                 ~~~~~~~~~~^~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:77:3:
 error: use of undeclared identifier 'SI_DETHREAD'; did you mean 'SIGEV_THREAD'?
   77 |   ADD_LINUX_SIGNAL(4,      "SIGILL",       false,    true,   true,   
"illegal instruction");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:29:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |                             ^~~~~~~~~~~
/b/s/w/ir/x/w/cipd/linux/usr/include/x86_64-linux-gnu/bits/siginfo.h:340:3: 
note: 'SIGEV_THREAD' declared here
  340 |   SIGEV_THREAD,                 /* Deliver via thread creation.  */
      |   ^
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:77:3:
 error: static assertion failed due to requirement 'SIGEV_THREAD == -7': Value 
mismatch for signal code SI_DETHREAD
   77 |   ADD_LINUX_SIGNAL(4,      "SIGILL",       false,    true,   true,   
"illegal instruction");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:29:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |   
~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   58 |               "sent by execve() killing subsidiary threads",            
       \
      |               
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   59 |               SignalCodePrintOption::Sender);                           
       \
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:34:17:
 note: expanded from macro 'ADD_SIGCODE'
   34 |   static_assert(code_name == code_value,                                
       \
      |                 ^~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:77:3:
 note: expression evaluates to '2 == -7'
   77 |   ADD_LINUX_SIGNAL(4,      "SIGILL",       false,    true,   true,   
"illegal instruction");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:3:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   58 |               "sent by execve() killing subsidiary threads",            
       \
      |               
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   59 |               SignalCodePrintOption::Sender);                           
       \
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:34:27:
 note: expanded from macro 'ADD_SIGCODE'
   34 |   static_assert(code_name == code_value,                                
       \
      |                 ~~~~~~~~~~^~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:87:3:
 error: use of undeclared identifier 'SI_DETHREAD'; did you mean 'SIGEV_THREAD'?
   87 |   ADD_LINUX_SIGNAL(5,      "SIGTRAP",      true,     true,   true,   
"trace trap (not reset when caught)");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:29:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |                             ^~~~~~~~~~~
/b/s/w/ir/x/w/cipd/linux/usr/include/x86_64-linux-gnu/bits/siginfo.h:340:3: 
note: 'SIGEV_THREAD' declared here
  340 |   SIGEV_THREAD,                 /* Deliver via thread creation.  */
      |   ^
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:87:3:
 error: static assertion failed due to requirement 'SIGEV_THREAD == -7': Value 
mismatch for signal code SI_DETHREAD
   87 |   ADD_LINUX_SIGNAL(5,      "SIGTRAP",      true,     true,   true,   
"trace trap (not reset when caught)");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:29:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |   
~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   58 |               "sent by execve() killing subsidiary threads",            
       \
      |               
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   59 |               SignalCodePrintOption::Sender);                           
       \
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:34:17:
 note: expanded from macro 'ADD_SIGCODE'
   34 |   static_assert(code_name == code_value,                                
       \
      |                 ^~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:87:3:
 note: expression evaluates to '2 == -7'
   87 |   ADD_LINUX_SIGNAL(5,      "SIGTRAP",      true,     true,   true,   
"trace trap (not reset when caught)");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:3:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   58 |               "sent by execve() killing subsidiary threads",            
       \
      |               
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   59 |               SignalCodePrintOption::Sender);                           
       \
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:34:27:
 note: expanded from macro 'ADD_SIGCODE'
   34 |   static_assert(code_name == code_value,                                
       \
      |                 ~~~~~~~~~~^~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:88:3:
 error: use of undeclared identifier 'SI_DETHREAD'; did you mean 'SIGEV_THREAD'?
   88 |   ADD_LINUX_SIGNAL(6,      "SIGABRT",      false,    true,   true,   
"abort()/IOT trap", "SIGIOT");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:29:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |                             ^~~~~~~~~~~
/b/s/w/ir/x/w/cipd/linux/usr/include/x86_64-linux-gnu/bits/siginfo.h:340:3: 
note: 'SIGEV_THREAD' declared here
  340 |   SIGEV_THREAD,                 /* Deliver via thread creation.  */
      |   ^
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:88:3:
 error: static assertion failed due to requirement 'SIGEV_THREAD == -7': Value 
mismatch for signal code SI_DETHREAD
   88 |   ADD_LINUX_SIGNAL(6,      "SIGABRT",      false,    true,   true,   
"abort()/IOT trap", "SIGIOT");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:29:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |   
~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   58 |               "sent by execve() killing subsidiary threads",            
       \
      |               
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   59 |               SignalCodePrintOption::Sender);                           
       \
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:34:17:
 note: expanded from macro 'ADD_SIGCODE'
   34 |   static_assert(code_name == code_value,                                
       \
      |                 ^~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:88:3:
 note: expression evaluates to '2 == -7'
   88 |   ADD_LINUX_SIGNAL(6,      "SIGABRT",      false,    true,   true,   
"abort()/IOT trap", "SIGIOT");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:3:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   58 |               "sent by execve() killing subsidiary threads",            
       \
      |               
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   59 |               SignalCodePrintOption::Sender);                           
       \
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:34:27:
 note: expanded from macro 'ADD_SIGCODE'
   34 |   static_assert(code_name == code_value,                                
       \
      |                 ~~~~~~~~~~^~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:90:3:
 error: use of undeclared identifier 'SI_DETHREAD'; did you mean 'SIGEV_THREAD'?
   90 |   ADD_LINUX_SIGNAL(7,      "SIGBUS",       false,    true,   true,   
"bus error");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:29:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |                             ^~~~~~~~~~~
/b/s/w/ir/x/w/cipd/linux/usr/include/x86_64-linux-gnu/bits/siginfo.h:340:3: 
note: 'SIGEV_THREAD' declared here
  340 |   SIGEV_THREAD,                 /* Deliver via thread creation.  */
      |   ^
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:90:3:
 error: static assertion failed due to requirement 'SIGEV_THREAD == -7': Value 
mismatch for signal code SI_DETHREAD
   90 |   ADD_LINUX_SIGNAL(7,      "SIGBUS",       false,    true,   true,   
"bus error");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:29:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |   
~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   58 |               "sent by execve() killing subsidiary threads",            
       \
      |               
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   59 |               SignalCodePrintOption::Sender);                           
       \
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:34:17:
 note: expanded from macro 'ADD_SIGCODE'
   34 |   static_assert(code_name == code_value,                                
       \
      |                 ^~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:90:3:
 note: expression evaluates to '2 == -7'
   90 |   ADD_LINUX_SIGNAL(7,      "SIGBUS",       false,    true,   true,   
"bus error");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:3:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   58 |               "sent by execve() killing subsidiary threads",            
       \
      |               
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   59 |               SignalCodePrintOption::Sender);                           
       \
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:34:27:
 note: expanded from macro 'ADD_SIGCODE'
   34 |   static_assert(code_name == code_value,                                
       \
      |                 ~~~~~~~~~~^~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:95:3:
 error: use of undeclared identifier 'SI_DETHREAD'; did you mean 'SIGEV_THREAD'?
   95 |   ADD_LINUX_SIGNAL(8,      "SIGFPE",       false,    true,   true,   
"floating point exception");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:29:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |                             ^~~~~~~~~~~
/b/s/w/ir/x/w/cipd/linux/usr/include/x86_64-linux-gnu/bits/siginfo.h:340:3: 
note: 'SIGEV_THREAD' declared here
  340 |   SIGEV_THREAD,                 /* Deliver via thread creation.  */
      |   ^
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:95:3:
 error: static assertion failed due to requirement 'SIGEV_THREAD == -7': Value 
mismatch for signal code SI_DETHREAD
   95 |   ADD_LINUX_SIGNAL(8,      "SIGFPE",       false,    true,   true,   
"floating point exception");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:29:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |   
~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   58 |               "sent by execve() killing subsidiary threads",            
       \
      |               
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   59 |               SignalCodePrintOption::Sender);                           
       \
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:34:17:
 note: expanded from macro 'ADD_SIGCODE'
   34 |   static_assert(code_name == code_value,                                
       \
      |                 ^~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:95:3:
 note: expression evaluates to '2 == -7'
   95 |   ADD_LINUX_SIGNAL(8,      "SIGFPE",       false,    true,   true,   
"floating point exception");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:3:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   58 |               "sent by execve() killing subsidiary threads",            
       \
      |               
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   59 |               SignalCodePrintOption::Sender);                           
       \
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:34:27:
 note: expanded from macro 'ADD_SIGCODE'
   34 |   static_assert(code_name == code_value,                                
       \
      |                 ~~~~~~~~~~^~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:105:3:
 error: use of undeclared identifier 'SI_DETHREAD'; did you mean 'SIGEV_THREAD'?
  105 |   ADD_LINUX_SIGNAL(9,      "SIGKILL",      false,    true,   true,   
"kill");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:29:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |                             ^~~~~~~~~~~
/b/s/w/ir/x/w/cipd/linux/usr/include/x86_64-linux-gnu/bits/siginfo.h:340:3: 
note: 'SIGEV_THREAD' declared here
  340 |   SIGEV_THREAD,                 /* Deliver via thread creation.  */
      |   ^
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:105:3:
 error: static assertion failed due to requirement 'SIGEV_THREAD == -7': Value 
mismatch for signal code SI_DETHREAD
  105 |   ADD_LINUX_SIGNAL(9,      "SIGKILL",      false,    true,   true,   
"kill");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:29:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |   
~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   58 |               "sent by execve() killing subsidiary threads",            
       \
      |               
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   59 |               SignalCodePrintOption::Sender);                           
       \
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:34:17:
 note: expanded from macro 'ADD_SIGCODE'
   34 |   static_assert(code_name == code_value,                                
       \
      |                 ^~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:105:3:
 note: expression evaluates to '2 == -7'
  105 |   ADD_LINUX_SIGNAL(9,      "SIGKILL",      false,    true,   true,   
"kill");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:3:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   58 |               "sent by execve() killing subsidiary threads",            
       \
      |               
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   59 |               SignalCodePrintOption::Sender);                           
       \
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:34:27:
 note: expanded from macro 'ADD_SIGCODE'
   34 |   static_assert(code_name == code_value,                                
       \
      |                 ~~~~~~~~~~^~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:106:3:
 error: use of undeclared identifier 'SI_DETHREAD'; did you mean 'SIGEV_THREAD'?
  106 |   ADD_LINUX_SIGNAL(10,     "SIGUSR1",      false,    true,   true,   
"user defined signal 1");
      |   
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/b/s/w/ir/x/w/llvm-llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp:57:29:
 note: expanded from macro 'ADD_LINUX_SIGNAL'
   57 |   ADD_SIGCODE(signo, signo, SI_DETHREAD, -7,                            
       \
      |                             ^~~~~~~~~~~
/b/s/w/ir/x/w/cipd/linux/usr/include/x86_64-linux-gnu/bits/siginfo.h:340:3: 
note: 'SIGEV_THREAD' declared here
  340 |   SIGEV_THREAD,                 /* Deliver via thread creation.  */
      |   ^
```

https://github.com/llvm/llvm-project/pull/140150
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