Auto merge of #3188 - valpackett:waitconst, r=JohnTitor

netbsd,openbsd: add more waitid related constants

`P_ALL`/`P_PID`/`WEXITED`/`WNOWAIT`/`WSTOPPED` in particular are what's required for rustix to support waitid and they were missing on OpenBSD; while here add NetBSD's custom ones.

ping `@semarie`

libc-test/semver/netbsd.txt

@@ -1055,9 +1055,13 @@ VM_PROC_MAP
 VREPRINT
 VSTATUS
 VWERASE
+WALLSIG
+WALTSIG
 WEXITED
 WNOWAIT
+WNOZOMBIE
 WSTOPPED
+WTRAPPED
 YESEXPR
 YESSTR
 _IOFBF

libc-test/semver/openbsd.txt

@@ -618,6 +618,9 @@ O_RSYNC
 O_SHLOCK
 O_SYNC
 PENDIN
+P_ALL
+P_PGID
+P_PID
 PF_APPLETALK
 PF_BLUETOOTH
 PF_BPF
@@ -835,6 +838,10 @@ UTIME_OMIT
 UT_HOSTSIZE
 UT_LINESIZE
 UT_NAMESIZE
+WEXITED
+WNOWAIT
+WSTOPPED
+WTRAPPED
 VDISCARD
 VDSUSP
 VLNEXT

src/unix/bsd/netbsdlike/netbsd/mod.rs

@@ -2220,6 +2220,11 @@ pub const WCONTINUED: ::c_int = 0x00000010;
 pub const WEXITED: ::c_int = 0x000000020;
 pub const WNOWAIT: ::c_int = 0x00010000;
 
+pub const WALTSIG: ::c_int = 0x00000004;
+pub const WALLSIG: ::c_int = 0x00000008;
+pub const WTRAPPED: ::c_int = 0x00000040;
+pub const WNOZOMBIE: ::c_int = 0x00020000;
+
 pub const P_ALL: idtype_t = 0;
 pub const P_PID: idtype_t = 1;
 pub const P_PGID: idtype_t = 4;

src/unix/bsd/netbsdlike/openbsd/mod.rs

@@ -7,6 +7,7 @@ pub type sigset_t = ::c_uint;
 pub type blksize_t = i32;
 pub type fsblkcnt_t = u64;
 pub type fsfilcnt_t = u64;
+pub type idtype_t = ::c_uint;
 pub type pthread_attr_t = *mut ::c_void;
 pub type pthread_mutex_t = *mut ::c_void;
 pub type pthread_mutexattr_t = *mut ::c_void;
@@ -1615,7 +1616,15 @@ pub const BIOCSDLT: ::c_ulong = 0x8004427a;
 
 pub const PTRACE_FORK: ::c_int = 0x0002;
 
-pub const WCONTINUED: ::c_int = 8;
+pub const WCONTINUED: ::c_int = 0x08;
+pub const WEXITED: ::c_int = 0x04;
+pub const WSTOPPED: ::c_int = 0x02; // same as WUNTRACED
+pub const WNOWAIT: ::c_int = 0x10;
+pub const WTRAPPED: ::c_int = 0x20;
+
+pub const P_ALL: ::idtype_t = 0;
+pub const P_PGID: ::idtype_t = 1;
+pub const P_PID: ::idtype_t = 2;
 
 // search.h
 pub const FIND: ::ACTION = 0;