diff options
| author | Stefan Weil <weil@mail.berlios.de> | 2010-01-20 22:58:34 +0100 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2010-01-26 15:42:01 -0600 |
| commit | 922910ce42d15bdb7c2347436b1b5798b5401de4 (patch) | |
| tree | 83b3ec6cdee14b1cc51f01997271489985d3084c | |
| parent | 2ba6edf0dd740166632df80caa85992b20791a68 (diff) | |
qdev: Add help for property value
When called with property value "?",
a help text will be printed (instead of an error message).
This is useful for command lines like
qemu -device e1000,mac=?
and is already standard for other command line options.
A better help text could be provided by extending
the Property structure with a desc field.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| -rw-r--r-- | hw/qdev-properties.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/hw/qdev-properties.c b/hw/qdev-properties.c index 8547ad27d4..f5ca05fe87 100644 --- a/hw/qdev-properties.c +++ b/hw/qdev-properties.c @@ -565,8 +565,13 @@ int qdev_prop_parse(DeviceState *dev, const char *name, const char *value) return -1; } if (prop->info->parse(dev, prop, value) != 0) { - fprintf(stderr, "property \"%s.%s\": failed to parse \"%s\"\n", - dev->info->name, name, value); + if (strcmp(value, "?") != 0) { + fprintf(stderr, "property \"%s.%s\": failed to parse \"%s\"\n", + dev->info->name, name, value); + } else { + fprintf(stderr, "%s.%s=%s\n", + dev->info->name, name, prop->info->name); + } return -1; } return 0; |