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authorPhilippe Mathieu-Daudé <f4bug@amsat.org>2021-04-25 00:41:10 +0200
committerGerd Hoffmann <kraxel@redhat.com>2021-05-04 08:38:23 +0200
commit9c3c834bdda5ca6d58c0e61508737683d12968b5 (patch)
treefb9bfcc25adfaea88177e24943acdbd2ebc27545 /stubs
parent1081607bfab94a0b6149c4a2195737107aed265f (diff)
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hw/usb: Do not build USB subsystem if not required
If the Kconfig 'USB' value is not selected, it is pointless to build the USB core components. Add a stub for the HMP commands and usbdevice_create() which is called by usb_device_add in softmmu/vl.c. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210424224110.3442424-3-f4bug@amsat.org> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'stubs')
-rw-r--r--stubs/meson.build1
-rw-r--r--stubs/usb-dev-stub.c25
2 files changed, 26 insertions, 0 deletions
diff --git a/stubs/meson.build b/stubs/meson.build
index be6f6d6..3faef16 100644
--- a/stubs/meson.build
+++ b/stubs/meson.build
@@ -50,6 +50,7 @@ if have_block
endif
if have_system
stub_ss.add(files('semihost.c'))
+ stub_ss.add(files('usb-dev-stub.c'))
stub_ss.add(files('xen-hw-stub.c'))
else
stub_ss.add(files('qdev.c'))
diff --git a/stubs/usb-dev-stub.c b/stubs/usb-dev-stub.c
new file mode 100644
index 0000000..b1adeeb
--- /dev/null
+++ b/stubs/usb-dev-stub.c
@@ -0,0 +1,25 @@
+/*
+ * QEMU USB device emulation stubs
+ *
+ * Copyright (C) 2021 Philippe Mathieu-Daudé <f4bug@amsat.org>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/error-report.h"
+#include "sysemu/sysemu.h"
+#include "monitor/monitor.h"
+#include "hw/usb.h"
+
+USBDevice *usbdevice_create(const char *driver)
+{
+ error_report("Support for USB devices not built-in");
+
+ return NULL;
+}
+
+void hmp_info_usb(Monitor *mon, const QDict *qdict)
+{
+ monitor_printf(mon, "Support for USB devices not built-in\n");
+}