OpenBSD support.

bin/9l

@@ -169,7 +169,7 @@ case "$tag" in
 *OpenBSD*)
 	ld=gcc
 	userpath=true
-	extralibs="$extralibs -lutil -lpthread"
+	extralibs="$extralibs -lutil"
 	;;
 *FreeBSD*)
 	ld=gcc

include/libc.h

@@ -638,7 +638,7 @@ extern	void		freenetconninfo(NetConnInfo*);
 #define DMWRITE		0x2		/* mode bit for write permission */
 #define DMEXEC		0x1		/* mode bit for execute permission */
 
-#if defined(__FreeBSD__)
+#ifdef RFMEM	/* FreeBSD, OpenBSD */
 #undef RFFDG
 #undef RFNOTEG
 #undef RFPROC
@@ -832,6 +832,10 @@ extern	int	post9pservice(int, char*);
 #	endif
 #endif
 
+#ifdef __OpenBSD__
+#define sched_yield()	syscall(302)	/* what is this? */
+#endif
+
 /* command line */
 extern char	*argv0;
 extern void __fixargv0(void);

include/u.h

@@ -81,7 +81,10 @@ typedef long p9jmp_buf[sizeof(sigjmp_buf)/sizeof(long)];
 #	undef _NEEDUSHORT
 #	undef _NEEDUINT
 #	undef _NEEDULONG
-#	undef PLAN9PORT_USING_PTHREADS
+#elif defined(__OpenBSD__)
+#	undef _NEEDUSHORT
+#	undef _NEEDUINT
+#	undef _NEEDULONG
 #else
 	/* No idea what system this is -- try some defaults */
 #	include <pthread.h>

src/Makefile

@@ -1,6 +1,6 @@
 ../bin/mk: mkmk.sh
 	SYSNAME=`uname` export SYSNAME; \
-	OBJTYPE=`uname -m | sed 's;i.86;386;; s;amd64;x86_64;; s;/.*;;; s; ;;g; s/PowerMacintosh/power/; s/ppc64/power/g; s/ppc/power/g'` export OBJTYPE; \
+	OBJTYPE=`uname -m | sed 's;i.86;386;; s;amd64;x86_64;; s;/.*;;; s; ;;g; s/PowerMacintosh/power/; s/macppc/power/g; s/ppc64/power/g; s/ppc/power/g'` export OBJTYPE; \
 	PATH=`pwd`/../bin:$$PATH export PATH; \
 	PLAN9=`pwd`/.. export PLAN9; \
 	sh -x mkmk.sh

src/lib9/sendfd.c

@@ -6,20 +6,15 @@
 #include <unistd.h>
 #include <errno.h>
 
-typedef struct Sendfd Sendfd;
-struct Sendfd {
-	struct cmsghdr cmsg;
-	int fd;
-};
-
 int
 sendfd(int s, int fd)
 {
 	char buf[1];
 	struct iovec iov;
 	struct msghdr msg;
+	struct cmsghdr *cmsg;
 	int n;
-	Sendfd sfd;
+	char cms[CMSG_SPACE(sizeof(int))];
 	
 	buf[0] = 0;
 	iov.iov_base = buf;
@@ -28,14 +23,14 @@ sendfd(int s, int fd)
 	memset(&msg, 0, sizeof msg);
 	msg.msg_iov = &iov;
 	msg.msg_iovlen = 1;
+	msg.msg_control = (caddr_t)cms;
+	msg.msg_controllen = CMSG_LEN(sizeof(int));
 
-	sfd.cmsg.cmsg_len = sizeof sfd;
+	cmsg = CMSG_FIRSTHDR(&msg);
-	sfd.cmsg.cmsg_level = SOL_SOCKET;
+	cmsg->cmsg_len = CMSG_LEN(sizeof(int));
-	sfd.cmsg.cmsg_type = SCM_RIGHTS;
+	cmsg->cmsg_level = SOL_SOCKET;
-	sfd.fd = fd;
+	cmsg->cmsg_type = SCM_RIGHTS;
-
+	*(int*)CMSG_DATA(cmsg) = fd;
-	msg.msg_control = (caddr_t)&sfd;
-	msg.msg_controllen = sizeof sfd;
 
 	if((n=sendmsg(s, &msg, 0)) != iov.iov_len)
 		return -1;
@@ -46,10 +41,12 @@ int
 recvfd(int s)
 {
 	int n;
+	int fd;
 	char buf[1];
 	struct iovec iov;
 	struct msghdr msg;
-	Sendfd sfd;
+	struct cmsghdr *cmsg;
+	char cms[CMSG_SPACE(sizeof(int))];
 
 	iov.iov_base = buf;
 	iov.iov_len = 1;
@@ -60,20 +57,13 @@ recvfd(int s)
 	msg.msg_iov = &iov;
 	msg.msg_iovlen = 1;
 
-	memset(&sfd, 0, sizeof sfd);
+	msg.msg_control = (caddr_t)cms;
-	sfd.fd = -1;
+	msg.msg_controllen = sizeof cms;
-	sfd.cmsg.cmsg_len = sizeof sfd;
-	sfd.cmsg.cmsg_level = SOL_SOCKET;
-	sfd.cmsg.cmsg_type = SCM_RIGHTS;
-
-	msg.msg_control = (caddr_t)&sfd;
-	msg.msg_controllen = sizeof sfd;
 
 	if((n=recvmsg(s, &msg, 0)) < 0)
 		return -1;
-	if(n==0 && sfd.fd==-1){
+
-		werrstr("eof in recvfd");
+	cmsg = CMSG_FIRSTHDR(&msg);
-		return -1;
+	fd = *(int*)CMSG_DATA(cmsg);
-	}
+	return fd;
-	return sfd.fd;
 }

src/mkcommon

@@ -9,6 +9,10 @@
 %.$O:	%.s
 	$AS $AFLAGS $stem.s
 
+# OpenBSD needs this; sigh
+%.$O:	%.S
+	$CC $CFLAGS $stem.S
+	
 y.tab.h y.tab.c:	$YFILES
 	$YACC $YFLAGS $prereq
 

src/mkhdr

@@ -5,6 +5,7 @@ OBJTYPE=`uname -m | sed '
 	s;/.*;;;
 	s; ;;g;
 	s;PowerMacintosh;power;g;
+	s;macppc;power;g;
 	s;ppc64;power;g;
 	s;ppc;power;g'`