Display dlerror ouptut if dlopen fails

sambrightman · sambrightman · commit 896fb30ad53a · 2026-02-26T14:29:05.000Z
diff --git a/src/debugpy/_vendored/pydevd/pydevd_attach_to_process/add_code_to_python_process.py b/src/debugpy/_vendored/pydevd/pydevd_attach_to_process/add_code_to_python_process.py
@@ -467,6 +467,7 @@ def run_python_code_linux(pid, python_code, connect_debugger_tracing=False, show
     cmd.extend(
         [
             "--eval-command='call (void*)dlopen(\"%s\", 2)'" % target_dll,
+            "--eval-command='call (char*)dlerror()'",
             "--eval-command='sharedlibrary %s'" % target_dll_name,
             "--eval-command='call (int)DoAttach(%s, \"%s\", %s)'" % (is_debug, python_code, show_debug_info),
         ]

Original file line number	Diff line number	Diff line change
`@@ -467,6 +467,7 @@ def run_python_code_linux(pid, python_code, connect_debugger_tracing=False, show`
`467`	`467`	`cmd.extend(`
`468`	`468`	`[`
`469`	`469`	`"--eval-command='call (void*)dlopen(\"%s\", 2)'" % target_dll,`
	`470`	`+ "--eval-command='call (char*)dlerror()'",`
`470`	`471`	`"--eval-command='sharedlibrary %s'" % target_dll_name,`
`471`	`472`	`"--eval-command='call (int)DoAttach(%s, \"%s\", %s)'" % (is_debug, python_code, show_debug_info),`
`472`	`473`	`]`