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[PULL 06/10] bsd-user: sysctl helper funtions: sysctl_name2oid and sysct
From: |
Warner Losh |
Subject: |
[PULL 06/10] bsd-user: sysctl helper funtions: sysctl_name2oid and sysctl_oidfmt |
Date: |
Wed, 1 Mar 2023 11:23:49 -0700 |
From: Juergen Lock <nox@jelal.kn-bremen.de>
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>
---
bsd-user/freebsd/os-sys.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/bsd-user/freebsd/os-sys.c b/bsd-user/freebsd/os-sys.c
index 2e0a6c058d6..8bd1db69410 100644
--- a/bsd-user/freebsd/os-sys.c
+++ b/bsd-user/freebsd/os-sys.c
@@ -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)
{
--
2.39.1
- [PULL 00/10] Bsd user 2023q1 patches, Warner Losh, 2023/03/01
- [PULL 01/10] bsd-user: Don't truncate the return value from freebsd_syscall, Warner Losh, 2023/03/01
- [PULL 02/10] build: Don't specify -no-pie for --static user-mode programs, Warner Losh, 2023/03/01
- [PULL 03/10] bsd-user: Add sysarch syscall, Warner Losh, 2023/03/01
- [PULL 04/10] bsd-user: various helper routines for sysctl, Warner Losh, 2023/03/01
- [PULL 05/10] bsd-user: Helper routines oidfmt, Warner Losh, 2023/03/01
- [PULL 06/10] bsd-user: sysctl helper funtions: sysctl_name2oid and sysctl_oidfmt,
Warner Losh <=
- [PULL 07/10] bsd-user: common routine do_freebsd_sysctl_oid for all sysctl variants, Warner Losh, 2023/03/01
- [PULL 08/10] bsd-user: Start translation of arch-specific sysctls, Warner Losh, 2023/03/01
- [PULL 09/10] bsd-user: do_freebsd_sysctl helper for sysctl(2), Warner Losh, 2023/03/01
- [PULL 10/10] bsd-user: implement sysctlbyname(2), Warner Losh, 2023/03/01
- Re: [PULL 00/10] Bsd user 2023q1 patches, Peter Maydell, 2023/03/02