[PATCH v2 16/27] monitor: Make 'info via' a generic command

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

In order to build hmp-commands-info.hx once we need to stop
using device target-specific check. Use the generic pattern
to make the command available on all targets, providing a
stub with kind error message when the device is not available.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 MAINTAINERS            |  2 +-
 hw/misc/mos6522-stub.c | 16 ++++++++++++++++
 hmp-commands-info.hx   |  2 --
 hw/misc/meson.build    |  1 +
 4 files changed, 18 insertions(+), 3 deletions(-)
 create mode 100644 hw/misc/mos6522-stub.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 932d6aee507..1810625eb1e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1558,7 +1558,7 @@ F: hw/ppc/mac_newworld.c
 F: hw/pci-host/uninorth.c
 F: hw/pci-bridge/dec.[hc]
 F: hw/misc/macio/
-F: hw/misc/mos6522.c
+F: hw/misc/mos6522*.c
 F: hw/nvram/mac_nvram.c
 F: hw/ppc/fw_cfg.c
 F: hw/input/adb*
diff --git a/hw/misc/mos6522-stub.c b/hw/misc/mos6522-stub.c
new file mode 100644
index 00000000000..85eb0ee36ee
--- /dev/null
+++ b/hw/misc/mos6522-stub.c
@@ -0,0 +1,16 @@
+/*
+ * QEMU MOS6522 VIA stubs
+ *
+ * Copyright (c) Linaro
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "monitor/monitor.h"
+#include "monitor/hmp.h"
+
+void hmp_info_via(Monitor *mon, const QDict *qdict)
+{
+    monitor_printf(mon, "MOS6522 VIA is not available in this QEMU\n");
+}
diff --git a/hmp-commands-info.hx b/hmp-commands-info.hx
index 74c741f80e2..463038c302a 100644
--- a/hmp-commands-info.hx
+++ b/hmp-commands-info.hx
@@ -885,7 +885,6 @@ SRST
     Show intel SGX information.
 ERST
 
-#if defined(CONFIG_MOS6522)
     {
         .name         = "via",
         .args_type    = "",
@@ -893,7 +892,6 @@ ERST
         .help         = "show guest mos6522 VIA devices",
         .cmd          = hmp_info_via,
     },
-#endif
 
 SRST
   ``info via``
diff --git a/hw/misc/meson.build b/hw/misc/meson.build
index 245ab9b98cc..d7e97a4a32f 100644
--- a/hw/misc/meson.build
+++ b/hw/misc/meson.build
@@ -20,6 +20,7 @@ system_ss.add(when: 'CONFIG_ARM_V7M', if_true: files('armv7m_ras.c'))
 
 # Mac devices
 system_ss.add(when: 'CONFIG_MOS6522', if_true: files('mos6522.c'))
+stub_ss.add(files('mos6522-stub.c'))
 system_ss.add(when: 'CONFIG_DJMEMC', if_true: files('djmemc.c'))
 system_ss.add(when: 'CONFIG_IOSB', if_true: files('iosb.c'))
 
-- 
2.53.0