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bsd-user: sysctl helper funtions: sysctl_name2oid and sysctl_oidfmt

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Helper functions for sysctl implementations. sysctl_name2oid and
sysctl_oidfmt convert oids between host and targets

Signed-off-by: Juergen Lock <nox@jelal.kn-bremen.de>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Juergen Lock 2023-02-10 15:13:30 -07:00 committed by Warner Losh
parent efba70de54
commit 0394968a44
1 changed files with 18 additions and 0 deletions
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18
bsd-user/freebsd/os-sys.c
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@ -230,6 +230,24 @@ static void G_GNUC_UNUSED h2g_old_sysctl(void *holdp, size_t *holdlen, uint32_t
#endif
}
/*
* Convert the undocmented name2oid sysctl data for the target.
*/
static inline void G_GNUC_UNUSED sysctl_name2oid(uint32_t *holdp, size_t holdlen)
{
size_t i, num = holdlen / sizeof(uint32_t);
for (i = 0; i < num; i++) {
holdp[i] = tswap32(holdp[i]);
}
}
static inline void G_GNUC_UNUSED sysctl_oidfmt(uint32_t *holdp)
{
/* byte swap the kind */
holdp[0] = tswap32(holdp[0]);
}
/* sysarch() is architecture dependent. */
abi_long do_freebsd_sysarch(void *cpu_env, abi_long arg1, abi_long arg2)
{