Auto merge of #2529 - devnexen:fbsd_vmtotal, r=JohnTitor

freebsd add vmtotal sysctl query

Author: bors

libc-test/build.rs

@@ -1865,6 +1865,7 @@ fn test_freebsd(target: &str) {
                 "sys/user.h",
                 "sys/utsname.h",
                 "sys/uuid.h",
+                "sys/vmmeter.h",
                 "sys/wait.h",
                 "libprocstat.h",
                 "syslog.h",
@@ -2053,6 +2054,8 @@ fn test_freebsd(target: &str) {
             // Added in in FreeBSD 13.0 (r367776 and r367287)
             "SCM_CREDS2" | "LOCAL_CREDS_PERSISTENT" if Some(13) > freebsd_ver => true,
 
+            "VM_TOTAL" if Some(11) == freebsd_ver => true,
+
             _ => false,
         }
     });
@@ -2084,6 +2087,9 @@ fn test_freebsd(target: &str) {
             // `ptrace_sc_ret` is not available in FreeBSD 11
             "ptrace_sc_ret" if Some(11) == freebsd_ver => true,
 
+            // obsolete version
+            "vmtotal" if Some(11) == freebsd_ver => true,
+
             _ => false,
         }
     });

libc-test/semver/freebsd.txt

@@ -1249,6 +1249,7 @@ VDISCARD
 VDSUSP
 VERASE2
 VLNEXT
+VM_TOTAL
 VSTATUS
 VREPRINT
 VWERASE
@@ -1808,6 +1809,7 @@ utimensat
 utmpx
 utrace
 vm_size_t
+vmtotal
 wait4
 waitid
 xallocx

src/unix/bsd/freebsdlike/freebsd/mod.rs

@@ -462,6 +462,24 @@ s! {
         pub sem_otime: ::time_t,
         pub sem_ctime: ::time_t,
     }
+
+    pub struct vmtotal {
+        pub t_vm: u64,
+        pub t_avm: u64,
+        pub t_rm: u64,
+        pub t_arm: u64,
+        pub t_vmshr: u64,
+        pub t_avmshr: u64,
+        pub t_rmshr: u64,
+        pub t_armshr: u64,
+        pub t_free: u64,
+        pub t_rq: i16,
+        pub t_dw: i16,
+        pub t_pw: i16,
+        pub t_sl: i16,
+        pub t_sw: i16,
+        pub t_pad: [u16; 3],
+    }
 }
 
 s_no_extra_traits! {
@@ -1089,6 +1107,8 @@ pub const TIOCSIG: ::c_uint = 0x2004745f;
 pub const TIOCM_DCD: ::c_int = 0x40;
 pub const H4DISC: ::c_int = 0x7;
 
+pub const VM_TOTAL: ::c_int = 1;
+
 pub const BIOCSETFNR: ::c_ulong = 0x80104282;
 
 pub const FIODGNAME: ::c_ulong = 0x80106678;