patch 8.1.0093: non-MS-Windows: Cannot interrupt gdb when program is runningv8.1.0093

Problem:    non-MS-Windows: Cannot interrupt gdb when program is running.
Solution:   Only use debugbreak() on MS-Windows.

1 files changed, 10 insertions, 5 deletions

diff --git a/runtime/pack/dist/opt/termdebug/plugin/termdebug.vim b/runtime/pack/dist/opt/termdebug/plugin/termdebug.vim
index d837acd8c..b6d9ac5b8 100644
--- a/runtime/pack/dist/opt/termdebug/plugin/termdebug.vim
+++ b/runtime/pack/dist/opt/termdebug/plugin/termdebug.vim
@@ -402,12 +402,17 @@ endfunc
 " Function called when pressing CTRL-C in the prompt buffer and when placing a
 " breakpoint.
 func s:PromptInterrupt()
-  if s:pid == 0
-    echoerr 'Cannot interrupt gdb, did not find a process ID'
+  call ch_log('Interrupting gdb')
+  if has('win32')
+    " Using job_stop() does not work on MS-Windows, need to send SIGTRAP to
+    " the debugger program so that gdb responds again.
+    if s:pid == 0
+      echoerr 'Cannot interrupt gdb, did not find a process ID'
+    else
+      call debugbreak(s:pid)
+    endif
   else
-    call ch_log('Interrupting gdb')
-    " Using job_stop(s:gdbjob, 'int') does not work.
-    call debugbreak(s:pid)
+    call job_stop(s:gdbjob, 'int')
   endif
 endfunc