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| author | Peter Maydell <peter.maydell@linaro.org> | 2022-06-10 14:32:36 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2022-06-10 14:32:36 +0100 |
| commit | 90c072e063737e9e8f431489bbd334452f89056e (patch) | |
| tree | 89068bbfcb58ec765994e97f08120d8931aea896 /semihosting | |
| parent | ebf1b4cbb8ec357f5280dc8895548519b65a2d71 (diff) | |
semihosting/config: Merge --semihosting-config option groups
Currently we mishandle the --semihosting-config option if the
user specifies it on the command line more than once. For
example with:
--semihosting-config target=gdb --semihosting-config arg=foo,arg=bar
the function qemu_semihosting_config_options() is called twice, once
for each argument. But that function expects to be called only once,
and it always unconditionally sets the semihosting.enabled,
semihost_chardev and semihosting.target variables. This means that
if any of those options were set anywhere except the last
--semihosting-config option on the command line, those settings are
ignored. In the example above, 'target=gdb' in the first option is
overridden by an implied default 'target=auto' in the second.
The QemuOptsList machinery has a flag for handling this kind of
"option group is setting global state": by setting
.merge_lists = true;
we make the machinery merge all the --semihosting-config arguments
the user passes into a single set of options and call our
qemu_semihosting_config_options() just once.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Luc Michel <luc@lmichel.fr>
Message-id: 20220526190053.521505-3-peter.maydell@linaro.org
Diffstat (limited to 'semihosting')
| -rw-r--r-- | semihosting/config.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/semihosting/config.c b/semihosting/config.c index 50d82108e6..3afacf54ab 100644 --- a/semihosting/config.c +++ b/semihosting/config.c @@ -27,6 +27,7 @@ QemuOptsList qemu_semihosting_config_opts = { .name = "semihosting-config", + .merge_lists = true, .implied_opt_name = "enable", .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head), .desc = { |