gh-139275: Fix compilation of Modules/_remote_debugging_module.c when the system doesn't have process_vm_readv (#139307)

pablogsal · web-flow · commit 1963e7010018 · 2025-09-25T00:16:44.000+01:00
diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2025-09-24-17-32-52.gh-issue-139275.novrqf.rst b/Misc/NEWS.d/next/Core_and_Builtins/2025-09-24-17-32-52.gh-issue-139275.novrqf.rst
@@ -0,0 +1,2 @@
+Fix compilation problems in ``_remote_debugging_module.c`` when the system
+doesn't have ``process_vm_readv``. Patch by Pablo Galindo
diff --git a/Modules/_remote_debugging_module.c b/Modules/_remote_debugging_module.c
@@ -872,7 +872,7 @@ _Py_RemoteDebug_GetAsyncioDebugAddress(proc_handle_t* handle)
         PyErr_SetString(PyExc_RuntimeError, "Failed to find the AsyncioDebug section in the process.");
         _PyErr_ChainExceptions1(exc);
     }
-#elif defined(__linux__)
+#elif defined(__linux__) && HAVE_PROCESS_VM_READV
     // On Linux, search for asyncio debug in executable or DLL
     address = search_linux_map_for_section(handle, "AsyncioDebug", "python");
     if (address == 0) {
diff --git a/Python/remote_debug.h b/Python/remote_debug.h
@@ -891,7 +891,7 @@ _Py_RemoteDebug_GetPyRuntimeAddress(proc_handle_t* handle)
             handle->pid);
         _PyErr_ChainExceptions1(exc);
     }
-#elif defined(__linux__)
+#elif defined(__linux__) && HAVE_PROCESS_VM_READV
     // On Linux, search for 'python' in executable or DLL
     address = search_linux_map_for_section(handle, "PyRuntime", "python");
     if (address == 0) {

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	+Fix compilation problems in ``_remote_debugging_module.c`` when the system
	`2`	+doesn't have ``process_vm_readv``. Patch by Pablo Galindo
Original file line number	Diff line number	Diff line change
`@@ -872,7 +872,7 @@ _Py_RemoteDebug_GetAsyncioDebugAddress(proc_handle_t* handle)`
`872`	`872`	`PyErr_SetString(PyExc_RuntimeError, "Failed to find the AsyncioDebug section in the process.");`
`873`	`873`	`_PyErr_ChainExceptions1(exc);`
`874`	`874`	`}`
`875`		`-#elif defined(__linux__)`
	`875`	`+#elif defined(__linux__) && HAVE_PROCESS_VM_READV`
`876`	`876`	`// On Linux, search for asyncio debug in executable or DLL`
`877`	`877`	`address = search_linux_map_for_section(handle, "AsyncioDebug", "python");`
`878`	`878`	`if (address == 0) {`
Original file line number	Diff line number	Diff line change
`@@ -891,7 +891,7 @@ _Py_RemoteDebug_GetPyRuntimeAddress(proc_handle_t* handle)`
`891`	`891`	`handle->pid);`
`892`	`892`	`_PyErr_ChainExceptions1(exc);`
`893`	`893`	`}`
`894`		`-#elif defined(__linux__)`
	`894`	`+#elif defined(__linux__) && HAVE_PROCESS_VM_READV`
`895`	`895`	`// On Linux, search for 'python' in executable or DLL`
`896`	`896`	`address = search_linux_map_for_section(handle, "PyRuntime", "python");`
`897`	`897`	`if (address == 0) {`