gh-91048: Refactor _testexternalinspection and add Windows support

Signed-off-by: Pablo Galindo <[email protected]>

Author: pablogsal

Include/internal/pycore_remote_debug.h

@@ -0,0 +1,49 @@
+#ifndef Py_INTERNAL_REMOTE_DEBUG_H
+#define Py_INTERNAL_REMOTE_DEBUG_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef Py_BUILD_CORE
+#  error "this header requires Py_BUILD_CORE define"
+#endif
+
+#include <stdio.h>
+
+#ifndef MS_WINDOWS
+#include <unistd.h>
+#endif
+
+// Define a platform-independent process handle structure
+typedef struct {
+    pid_t pid;
+#ifdef MS_WINDOWS
+    HANDLE hProcess;
+#endif
+} proc_handle_t;
+
+// Initialize a process handle
+PyAPI_FUNC(int) _Py_RemoteDebug_InitProcHandle(proc_handle_t *handle, pid_t pid);
+
+// Cleanup a process handle
+PyAPI_FUNC(void) _Py_RemoteDebug_CleanupProcHandle(proc_handle_t *handle);
+
+// Get the PyRuntime section address from a process
+PyAPI_FUNC(uintptr_t) _Py_RemoteDebug_GetPyRuntimeAddress(proc_handle_t *handle);
+
+// Get the PyAsyncioDebug section address from a process
+PyAPI_FUNC(uintptr_t) _Py_RemoteDebug_GetAsyncioDebugAddress(proc_handle_t *handle);
+
+// Read memory from a remote process
+PyAPI_FUNC(int) _Py_RemoteDebug_ReadRemoteMemory(proc_handle_t *handle, uintptr_t remote_address, size_t len, void* dst);
+
+// Write memory to a remote process
+PyAPI_FUNC(int) _Py_RemoteDebug_WriteRemoteMemory(proc_handle_t *handle, uintptr_t remote_address, size_t len, const void* src);
+
+// Read debug offsets from a remote process
+PyAPI_FUNC(int) _Py_RemoteDebug_ReadDebugOffsets(proc_handle_t *handle, uintptr_t *runtime_start_address, _Py_DebugOffsets* debug_offsets);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* !Py_INTERNAL_DEBUG_OFFSETS_H */

Makefile.pre.in

@@ -1290,6 +1290,7 @@ PYTHON_HEADERS= \
 		$(srcdir)/Include/internal/pycore_crossinterp.h \
 		$(srcdir)/Include/internal/pycore_crossinterp_data_registry.h \
 		$(srcdir)/Include/internal/pycore_debug_offsets.h \
+		$(srcdir)/Include/internal/pycore_remote_debug.h \
 		$(srcdir)/Include/internal/pycore_descrobject.h \
 		$(srcdir)/Include/internal/pycore_dict.h \
 		$(srcdir)/Include/internal/pycore_dict_state.h \