Add support for FreeBSD.

Patch by Piego Pettenò

http://bugs.gentoo.org/93657

--- strace-4.5.11/configure.ac
+++ strace-4.5.11/configure.ac
@@ -192,16 +192,24 @@
 fi
 
 AC_CHECK_FUNCS(sigaction strerror strsignal pread sys_siglist _sys_siglist getdents mctl prctl sendmsg inet_ntop if_indextoname)
-AC_CHECK_HEADERS([sys/reg.h sys/filio.h sys/acl.h sys/asynch.h sys/door.h stropts.h sys/conf.h sys/stream.h sys/tihdr.h sys/tiuser.h sys/sysconfig.h ioctls.h sys/ioctl.h sys/ptrace.h termio.h linux/ptrace.h asm/reg.h sys/uio.h sys/aio.h  poll.h sys/poll.h sys/vfs.h asm/sysmips.h linux/utsname.h sys/nscsys.h mqueue.h sys/epoll.h], [], [])
+AC_CHECK_HEADERS([sys/reg.h sys/filio.h sys/acl.h sys/asynch.h sys/door.h stropts.h sys/conf.h sys/stream.h sys/tihdr.h sys/tiuser.h sys/sysconfig.h ioctls.h sys/ioctl.h sys/ptrace.h termio.h linux/ptrace.h asm/reg.h sys/uio.h sys/aio.h  poll.h sys/poll.h sys/vfs.h asm/sysmips.h linux/utsname.h sys/nscsys.h mqueue.h sys/epoll.h sys/param.h], [], [])
 AC_CHECK_HEADERS([linux/icmp.h linux/in6.h linux/netlink.h linux/if_packet.h],
                  [], [], [#include <linux/socket.h>])
 AC_CHECK_HEADERS([asm/sigcontext.h], [], [], [#include <signal.h>])
-AC_CHECK_HEADERS([netinet/tcp.h netinet/udp.h],,, [#include <netinet/in.h>])
+AC_CHECK_HEADERS([netinet/tcp.h netinet/udp.h],,,
+[#include <sys/types.h>
+#include <netinet/in.h>])
+
+AC_CHECK_HEADERS([sys/mount.h],,,
+[#include <sys/types.h>
+#include <sys/param.h>])
 
 AC_MP_PROCFS
 AC_POLLABLE_PROCFS
 
-AC_CHECK_MEMBERS([struct msghdr.msg_control],,, [#include <sys/socket.h>])
+AC_CHECK_MEMBERS([struct msghdr.msg_control],,,
+[#include <sys/types.h>
+#include <sys/socket.h>])
 AC_STRUCT_PR_SYSCALL
 
 AC_CHECK_MEMBERS([struct T_conn_res.QUEUE_ptr,
@@ -209,6 +217,19 @@
 [#include <sys/stream.h>
 #include <sys/tihdr.h>])
 
+AC_CHECK_MEMBERS([struct fsid.val,
+                  struct fsid.__val],,,
+[#include <sys/types.h>
+#ifdef HAVE_SYS_PARAM_H
+# include <sys/param.h>
+#endif
+#ifdef HAVE_SYS_VFS_H
+# include <sys/vfs.h>
+#endif
+#ifdef HAVE_SYS_MOUNT_H
+# include <sys/mount.h>
+#endif])
+
 AC_CHECK_TYPES([struct __old_kernel_stat],,, [#include <asm/stat.h>])
 
 AC_CHECK_TYPES([struct pt_all_user_regs, struct ia64_fpreg],,,
--- strace-4.5.11/file.c
+++ strace-4.5.11/file.c
@@ -200,6 +200,10 @@
 #include <ustat.h>
 #endif
 
+#if defined(HAVE_STRUCT_FSID_VAL) && ! defined(HAVE_STRUCT_FSID___VAL)
+#define __val val
+#endif
+
 /*
  * This is a really dirty trick but it should always work.  Traditional
  * Unix says r/w/rw are 0/1/2, so we make them true flags 1/2/3 by
@@ -2495,6 +2499,8 @@
 }
 
 
+#ifdef LINUX
+
 static const struct xlat advise[] = {
   { POSIX_FADV_NORMAL,		"POSIX_FADV_NORMAL"	},
   { POSIX_FADV_RANDOM,		"POSIX_FADV_RANDOM"	},
@@ -2506,7 +2512,6 @@
 };
 
 
-#ifdef LINUX
 int
 sys_fadvise64(tcp)
 struct tcb *tcp;
@@ -2524,7 +2529,6 @@
     }
     return 0;
 }
-#endif
 
 
 int
@@ -2545,3 +2549,5 @@
     }
     return 0;
 }
+
+#endif
--- strace-4.5.11/net.c
+++ strace-4.5.11/net.c
@@ -1112,6 +1112,7 @@
 			tprintf("}}");
 			return;
 		}
+#ifdef SCM_CREDENTIALS
 		if (u.cmsg.cmsg_type == SCM_CREDENTIALS
 		    && CMSG_LEN(sizeof(struct ucred)) <= u.cmsg.cmsg_len) {
 			struct ucred *uc = (struct ucred *) CMSG_DATA (&u.cmsg);
@@ -1119,6 +1120,7 @@
 				(long)uc->pid, (long)uc->uid, (long)uc->gid);
 			return;
 		}
+#endif
 	}
 	tprintf(", ...}");
 }
--- strace-4.5.11/sock.c
+++ strace-4.5.11/sock.c
@@ -46,6 +46,7 @@
 #endif
 #endif
 #include <net/if.h>
+#include <netinet/in.h>
 
 extern const struct xlat addrfams[];
 
@@ -55,16 +56,26 @@
 	{ IFF_DEBUG,		"IFF_DEBUG"		},
 	{ IFF_LOOPBACK,		"IFF_LOOPBACK"		},
 	{ IFF_POINTOPOINT,	"IFF_POINTOPOINT"	},
+#ifdef IFF_NOTRAILERS
 	{ IFF_NOTRAILERS,	"IFF_NOTRAILERS"	},
+#endif
 	{ IFF_RUNNING,		"IFF_RUNNING"		},
 	{ IFF_NOARP,		"IFF_NOARP"		},
 	{ IFF_PROMISC,		"IFF_PROMISC"		},
 	{ IFF_ALLMULTI,		"IFF_ALLMULTI"		},
+#ifdef IFF_MASTER
 	{ IFF_MASTER,		"IFF_MASTER"		},
+#endif
+#ifdef IFF_SLAVE
 	{ IFF_SLAVE,		"IFF_SLAVE"		},
+#endif
 	{ IFF_MULTICAST,	"IFF_MULTICAST"		},
+#ifdef IFF_PORTSEL
 	{ IFF_PORTSEL,		"IFF_PORTSEL"		},
+#endif
+#ifdef IFF_AUTOMEDIA
 	{ IFF_AUTOMEDIA,	"IFF_AUTOMEDIA"		},
+#endif
 	{ 0,			NULL			}
 };
 
--- strace-4.5.11/strace.c
+++ strace-4.5.11/strace.c
@@ -617,6 +617,23 @@
 				cleanup();
 				exit(1);
 			}
+#ifdef FREEBSD
+			{
+				int status;
+				pid_t err;
+
+				do {
+					err = waitpid(pid, &status, WUNTRACED);
+				} while (err == -1 && errno == EINTR);
+				if (err == -1) {
+					fprintf(stderr,
+					        "waitpid() failed: %s\n",
+						strerror(errno));
+					cleanup();
+					exit(1);
+				}
+			}
+#endif
 #ifdef USE_PROCFS
 			if (proc_open(tcp, 0) < 0) {
 				fprintf(stderr, "trouble opening proc file\n");