On Sat, 22 Feb 2020, Paul Goyette wrote:
While there, it would be good to implement modctl(MODCTL_MODSTAT,
&modstat) to check whether a specific module is loaded into the kernel
and retrieve modstat_t describing it.
modstat_t m;
strlcpy(&m.ms_name, "haxm", MAXMODNAME);
if (modctl(MODCTL_MODSTAT, &modstat) == -1)
err(EXIT_FAILURE, "modctl: haxm");
I have got use-cases for these checks and I envision their wider usage
in future. We already have 3 use-cases in ATF tests.
I can probably do this fairly quickly. But I'll have to look closer
at the argument/result passing, especially WRT the module's list of
"required" modules.
Thinking a bit more, it's probably easiest just to retrieve the entire
list of modules with modctl(MODCTL_STAT, ...) and then scan the returned
list and compare against ms_name, as is done in modstat(8).
Before I invest much time in this, I'd appreciate other opinions on
whether a new option is necessary/desirable.
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| Paul Goyette | PGP Key fingerprint: | E-mail addresses: |
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