From 9a6994b490379074f546c395cb6d232cb1501348 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Thu, 18 Jun 1998 15:22:35 +0000
Subject: Added freebsd support from Dario Alcocer <alcocer@connectnet.com>.

---
 c/ACKNOWLEDGEMENTS                           |   3 +
 c/src/exec/libcsupport/src/termios.c         |  14 +++
 c/src/exec/score/cpu/unix/cpu.c              |   9 +-
 c/src/exec/score/cpu/unix/cpu.h              |   9 ++
 c/src/exec/score/cpu/unix/unix.h             |   4 +
 c/src/exec/score/tools/generic/size_rtems.in |   7 ++
 c/src/lib/libc/termios.c                     |  14 +++
 configure                                    | 138 ++++++++++++++-------------
 configure.in                                 |   6 ++
 cpukit/libcsupport/src/termios.c             |  14 +++
 cpukit/score/cpu/unix/cpu.c                  |   9 +-
 tools/cpu/generic/size_rtems.in              |   7 ++
 12 files changed, 164 insertions(+), 70 deletions(-)

diff --git a/c/ACKNOWLEDGEMENTS b/c/ACKNOWLEDGEMENTS
index 80bedd25e3..b44434287d 100644
--- a/c/ACKNOWLEDGEMENTS
+++ b/c/ACKNOWLEDGEMENTS
@@ -120,6 +120,9 @@ The following persons/organizations have made contributions:
   for numerous enhancements to the RTEMS autoconf support as well as
   for the Hitachi SH port.
 
++ Dario Alcocer <alcocer@connectnet.com> submitted a port of the
+  RTEMS port to FreeBSD.
+
 Finally, the RTEMS project would like to thank those who have contributed
 to the other free software efforts which RTEMS utilizes.  The primary RTEMS
 development environment is from the Free Software Foundation (the GNU
diff --git a/c/src/exec/libcsupport/src/termios.c b/c/src/exec/libcsupport/src/termios.c
index 648e2c0c3e..0857f0eae7 100644
--- a/c/src/exec/libcsupport/src/termios.c
+++ b/c/src/exec/libcsupport/src/termios.c
@@ -24,6 +24,20 @@
 #include <termios.h>
 #include <unistd.h>
 
+/*
+ *  FreeBSD does not support a full POSIX termios so we have to help it out
+ */
+
+
+#if defined(__FreeBSD__)
+#define XTABS   0
+#define ONLRET  0
+#define ONOCR   0
+#define TABDLY  0
+#define OLCUC   0
+#define ILCUC   0
+#endif
+
 /*
  * The size of the cooked buffer
  */
diff --git a/c/src/exec/score/cpu/unix/cpu.c b/c/src/exec/score/cpu/unix/cpu.c
index 5b927b7a40..796d46d267 100644
--- a/c/src/exec/score/cpu/unix/cpu.c
+++ b/c/src/exec/score/cpu/unix/cpu.c
@@ -152,8 +152,12 @@ void _CPU_Signal_initialize( void )
   sigaction(SIGUSR1, &act, 0);
   sigaction(SIGUSR2, &act, 0);
   sigaction(SIGCHLD, &act, 0);
+#ifdef SIGCLD
   sigaction(SIGCLD, &act, 0);
+#endif
+#ifdef SIGPWR
   sigaction(SIGPWR, &act, 0);
+#endif
   sigaction(SIGVTALRM, &act, 0);
   sigaction(SIGPROF, &act, 0);
   sigaction(SIGIO, &act, 0);
@@ -741,9 +745,10 @@ void _CPU_Stray_signal(int sig_num)
 
   switch (sig_num)
   {
+#ifdef SIGCLD
       case SIGCLD:
           break;
-
+#endif
       default:
       {
         /*
@@ -987,7 +992,7 @@ void _CPU_SHM_Init(
 
         help.val = 1;
         status = semctl( _CPU_SHM_Semid, i, SETVAL, help );
-#elif defined(__linux__)
+#elif defined(__linux__) || defined(__FreeBSD__)
         union semun help;
 
         help.val = 1;
diff --git a/c/src/exec/score/cpu/unix/cpu.h b/c/src/exec/score/cpu/unix/cpu.h
index 5eb4147df6..1a33365c2b 100644
--- a/c/src/exec/score/cpu/unix/cpu.h
+++ b/c/src/exec/score/cpu/unix/cpu.h
@@ -382,6 +382,14 @@ extern "C" {
  */
  
 #ifdef RTEMS_UNIXLIB
+#if defined(__FreeBSD__)
+#define RET_OFF    0
+#define EBX_OFF    1
+#define EBP_OFF    2
+#define ESP_OFF    3
+#define ESI_OFF    4
+#define EDI_OFF    5
+#else
 #define EBX_OFF    0
 #define ESI_OFF    1
 #define EDI_OFF    2
@@ -389,6 +397,7 @@ extern "C" {
 #define ESP_OFF    4
 #define RET_OFF    5
 #endif
+#endif
  
 #endif
  
diff --git a/c/src/exec/score/cpu/unix/unix.h b/c/src/exec/score/cpu/unix/unix.h
index 5753e7bf1a..52cfef79e4 100644
--- a/c/src/exec/score/cpu/unix/unix.h
+++ b/c/src/exec/score/cpu/unix/unix.h
@@ -46,6 +46,10 @@ extern "C" {
  
 #define CPU_MODEL_NAME  "Linux"
  
+#elif defined(__FreeBSD__)
+ 
+#define CPU_MODEL_NAME  "FreeBSD"
+ 
 #else
  
 #error "Unsupported CPU Model"
diff --git a/c/src/exec/score/tools/generic/size_rtems.in b/c/src/exec/score/tools/generic/size_rtems.in
index 93f3507579..e3dde44a81 100644
--- a/c/src/exec/score/tools/generic/size_rtems.in
+++ b/c/src/exec/score/tools/generic/size_rtems.in
@@ -54,6 +54,13 @@ case $target in
       echo Not supported on unix port.
       exit 0
       ;;
+  i[3456]86-unknown-freebsd2.[12]*)
+      echo freebsd
+      rtems_cpu=unix
+      bsp=freebsd2
+      echo Not supported on unix port.
+      exit 0
+      ;;
   *-rtems*)
     cpu=`echo $target | sed -e 's/-.*//'`
     rtems_cpu=$cpu
diff --git a/c/src/lib/libc/termios.c b/c/src/lib/libc/termios.c
index 648e2c0c3e..0857f0eae7 100644
--- a/c/src/lib/libc/termios.c
+++ b/c/src/lib/libc/termios.c
@@ -24,6 +24,20 @@
 #include <termios.h>
 #include <unistd.h>
 
+/*
+ *  FreeBSD does not support a full POSIX termios so we have to help it out
+ */
+
+
+#if defined(__FreeBSD__)
+#define XTABS   0
+#define ONLRET  0
+#define ONOCR   0
+#define TABDLY  0
+#define OLCUC   0
+#define ILCUC   0
+#endif
+
 /*
  * The size of the cooked buffer
  */
diff --git a/configure b/configure
index 390be06401..df8b403efe 100644
--- a/configure
+++ b/configure
@@ -1321,6 +1321,12 @@ case "${target}" in
         # override these settings
 	RTEMS_HAS_POSIX_API=no
 	;;
+  i[3456]86-unknown-freebsd2.[12]*) # unix "simulator" port
+	target_cpu=unix
+        RTEMS_HOST=FreeBSD
+        # override these settings
+	RTEMS_HAS_POSIX_API=no
+	;;
   no_cpu-*rtems*)
         target_cpu=no_cpu
 	RTEMS_HAS_POSIX_API=no
@@ -1336,7 +1342,7 @@ case "${target}" in
 	;;
   *) 
 	echo $ac_n "checking rtems target cpu""... $ac_c" 1>&6
-echo "configure:1340: checking rtems target cpu" >&5
+echo "configure:1346: checking rtems target cpu" >&5
 target_cpu=`echo $target | sed 's%^\([^-]*\)-\(.*\)$%\1%'`
 echo "$ac_t""$target_cpu" 1>&6
 
@@ -1355,7 +1361,7 @@ fi
 
 # Is this a supported CPU?
 echo $ac_n "checking if cpu $target_cpu is supported""... $ac_c" 1>&6
-echo "configure:1359: checking if cpu $target_cpu is supported" >&5
+echo "configure:1365: checking if cpu $target_cpu is supported" >&5
 if test -d "$srcdir/c/src/exec/score/cpu/$target_cpu"; then
   echo "$ac_t""yes" 1>&6
   makefiles="$makefiles c/src/exec/score/cpu/$target_cpu/Makefile"
@@ -1380,7 +1386,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1384: checking for $ac_word" >&5
+echo "configure:1390: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_CC_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1420,7 +1426,7 @@ rtems_save_CFLAGS=$CFLAGS
 CC=$CC_FOR_TARGET
 
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:1424: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+echo "configure:1430: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
 
 ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -1430,11 +1436,11 @@ ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS
 cross_compiling=$ac_cv_prog_cc_cross
 
 cat > conftest.$ac_ext <<EOF
-#line 1434 "configure"
+#line 1440 "configure"
 #include "confdefs.h"
 main(){return(0);}
 EOF
-if { (eval echo configure:1438: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:1444: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   ac_cv_prog_cc_works=yes
   # If we can't run a trivial program, we are probably using a cross compiler.
   if (./conftest; exit) 2>/dev/null; then
@@ -1454,12 +1460,12 @@ if test $ac_cv_prog_cc_works = no; then
   { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:1458: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:1464: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
 echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
 cross_compiling=$ac_cv_prog_cc_cross
 
 echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:1463: checking whether we are using GNU C" >&5
+echo "configure:1469: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1468,7 +1474,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:1472: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:1478: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gcc=yes
 else
   ac_cv_prog_gcc=no
@@ -1483,7 +1489,7 @@ if test $ac_cv_prog_gcc = yes; then
   ac_save_CFLAGS="$CFLAGS"
   CFLAGS=
   echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:1487: checking whether ${CC-cc} accepts -g" >&5
+echo "configure:1493: checking whether ${CC-cc} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1525,7 +1531,7 @@ unset ac_cv_prog_cc_cross
 
 
 echo $ac_n "checking whether $CC_FOR_TARGET accepts -specs""... $ac_c" 1>&6
-echo "configure:1529: checking whether $CC_FOR_TARGET accepts -specs" >&5
+echo "configure:1535: checking whether $CC_FOR_TARGET accepts -specs" >&5
 if eval "test \"`echo '$''{'rtems_cv_gcc_specs'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1544,7 +1550,7 @@ echo "$ac_t""$rtems_cv_gcc_specs" 1>&6
  
 
 echo $ac_n "checking whether $CC_FOR_TARGET accepts --pipe""... $ac_c" 1>&6
-echo "configure:1548: checking whether $CC_FOR_TARGET accepts --pipe" >&5
+echo "configure:1554: checking whether $CC_FOR_TARGET accepts --pipe" >&5
 if eval "test \"`echo '$''{'rtems_cv_gcc_pipe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1585,7 +1591,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1589: checking for $ac_word" >&5
+echo "configure:1595: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_CXX_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1625,7 +1631,7 @@ rtems_save_CXXFLAGS=$CXXFLAGS
 CXX=$CXX_FOR_TARGET
 
 echo $ac_n "checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:1629: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works" >&5
+echo "configure:1635: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works" >&5
 
 ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -1635,11 +1641,11 @@ ac_link='${CXX-g++} -o conftest $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $L
 cross_compiling=$ac_cv_prog_cxx_cross
 
 cat > conftest.$ac_ext <<EOF
-#line 1639 "configure"
+#line 1645 "configure"
 #include "confdefs.h"
 main(){return(0);}
 EOF
-if { (eval echo configure:1643: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:1649: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   ac_cv_prog_cxx_works=yes
   # If we can't run a trivial program, we are probably using a cross compiler.
   if (./conftest; exit) 2>/dev/null; then
@@ -1665,12 +1671,12 @@ if test $ac_cv_prog_cxx_works = no; then
   { echo "configure: error: installation or configuration problem: C++ compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:1669: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:1675: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler" >&5
 echo "$ac_t""$ac_cv_prog_cxx_cross" 1>&6
 cross_compiling=$ac_cv_prog_cxx_cross
 
 echo $ac_n "checking whether we are using GNU C++""... $ac_c" 1>&6
-echo "configure:1674: checking whether we are using GNU C++" >&5
+echo "configure:1680: checking whether we are using GNU C++" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gxx'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1679,7 +1685,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CXX-g++} -E conftest.C'; { (eval echo configure:1683: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CXX-g++} -E conftest.C'; { (eval echo configure:1689: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gxx=yes
 else
   ac_cv_prog_gxx=no
@@ -1694,7 +1700,7 @@ if test $ac_cv_prog_gxx = yes; then
   ac_save_CXXFLAGS="$CXXFLAGS"
   CXXFLAGS=
   echo $ac_n "checking whether ${CXX-g++} accepts -g""... $ac_c" 1>&6
-echo "configure:1698: checking whether ${CXX-g++} accepts -g" >&5
+echo "configure:1704: checking whether ${CXX-g++} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cxx_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1757,7 +1763,7 @@ fi
 # Extract the first word of ""$program_prefix"ar", so it can be a program name with args.
 set dummy "$program_prefix"ar; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1761: checking for $ac_word" >&5
+echo "configure:1767: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_AR_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1789,7 +1795,7 @@ fi
 # Extract the first word of ""$program_prefix"as", so it can be a program name with args.
 set dummy "$program_prefix"as; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1793: checking for $ac_word" >&5
+echo "configure:1799: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_AS_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1821,7 +1827,7 @@ fi
 # Extract the first word of ""$program_prefix"nm", so it can be a program name with args.
 set dummy "$program_prefix"nm; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1825: checking for $ac_word" >&5
+echo "configure:1831: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_NM_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1853,7 +1859,7 @@ fi
 # Extract the first word of ""$program_prefix"ld", so it can be a program name with args.
 set dummy "$program_prefix"ld; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1857: checking for $ac_word" >&5
+echo "configure:1863: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_LD_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1886,7 +1892,7 @@ fi
 # Extract the first word of ""$program_prefix"ranlib", so it can be a program name with args.
 set dummy "$program_prefix"ranlib; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1890: checking for $ac_word" >&5
+echo "configure:1896: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_RANLIB_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1919,7 +1925,7 @@ fi
 # Extract the first word of ""$program_prefix"objcopy", so it can be a program name with args.
 set dummy "$program_prefix"objcopy; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1923: checking for $ac_word" >&5
+echo "configure:1929: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_OBJCOPY_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1951,7 +1957,7 @@ fi
 # Extract the first word of ""$program_prefix"size", so it can be a program name with args.
 set dummy "$program_prefix"size; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1955: checking for $ac_word" >&5
+echo "configure:1961: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_SIZE_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1985,7 +1991,7 @@ fi
 # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1989: checking for $ac_word" >&5
+echo "configure:1995: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2014,7 +2020,7 @@ if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2018: checking for $ac_word" >&5
+echo "configure:2024: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2062,7 +2068,7 @@ fi
 fi
 
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:2066: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+echo "configure:2072: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
 
 ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -2072,11 +2078,11 @@ ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS
 cross_compiling=$ac_cv_prog_cc_cross
 
 cat > conftest.$ac_ext <<EOF
-#line 2076 "configure"
+#line 2082 "configure"
 #include "confdefs.h"
 main(){return(0);}
 EOF
-if { (eval echo configure:2080: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2086: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   ac_cv_prog_cc_works=yes
   # If we can't run a trivial program, we are probably using a cross compiler.
   if (./conftest; exit) 2>/dev/null; then
@@ -2096,12 +2102,12 @@ if test $ac_cv_prog_cc_works = no; then
   { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:2100: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:2106: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
 echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
 cross_compiling=$ac_cv_prog_cc_cross
 
 echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:2105: checking whether we are using GNU C" >&5
+echo "configure:2111: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2110,7 +2116,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:2114: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:2120: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gcc=yes
 else
   ac_cv_prog_gcc=no
@@ -2125,7 +2131,7 @@ if test $ac_cv_prog_gcc = yes; then
   ac_save_CFLAGS="$CFLAGS"
   CFLAGS=
   echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:2129: checking whether ${CC-cc} accepts -g" >&5
+echo "configure:2135: checking whether ${CC-cc} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2156,12 +2162,12 @@ fi
 for ac_func in strerror
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:2160: checking for $ac_func" >&5
+echo "configure:2166: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2165 "configure"
+#line 2171 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2184,7 +2190,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2188: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2194: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2212,7 +2218,7 @@ done
 # find all the Executive Makefiles
 
 echo $ac_n "checking for Makefile.in in c/src/exec/score/tools/$target_cpu""... $ac_c" 1>&6
-echo "configure:2216: checking for Makefile.in in c/src/exec/score/tools/$target_cpu" >&5
+echo "configure:2222: checking for Makefile.in in c/src/exec/score/tools/$target_cpu" >&5
 if test -d $srcdir/c/src/exec/score/tools/$target_cpu; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2227,7 +2233,7 @@ fi
 
 
 echo $ac_n "checking for Makefile.in in c/src/exec/rtems""... $ac_c" 1>&6
-echo "configure:2231: checking for Makefile.in in c/src/exec/rtems" >&5
+echo "configure:2237: checking for Makefile.in in c/src/exec/rtems" >&5
 if test -d $srcdir/c/src/exec/rtems; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2242,7 +2248,7 @@ fi
 
 
 echo $ac_n "checking for Makefile.in in c/src/exec/sapi""... $ac_c" 1>&6
-echo "configure:2246: checking for Makefile.in in c/src/exec/sapi" >&5
+echo "configure:2252: checking for Makefile.in in c/src/exec/sapi" >&5
 if test -d $srcdir/c/src/exec/sapi; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2259,7 +2265,7 @@ fi
 if test "$RTEMS_HAS_POSIX_API" = "yes"; then
   
 echo $ac_n "checking for Makefile.in in c/src/exec/posix""... $ac_c" 1>&6
-echo "configure:2263: checking for Makefile.in in c/src/exec/posix" >&5
+echo "configure:2269: checking for Makefile.in in c/src/exec/posix" >&5
 if test -d $srcdir/c/src/exec/posix; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2281,7 +2287,7 @@ if test -d "$srcdir/c/src/lib/libbsp/$target_cpu"; then
 
   if test -z "$rtems_bsp"; then
     echo $ac_n "checking for bsps""... $ac_c" 1>&6
-echo "configure:2285: checking for bsps" >&5
+echo "configure:2291: checking for bsps" >&5
     files=`ls $srcdir/c/src/lib/libbsp/$target_cpu`
     for file in $files; do
       case $file in
@@ -2336,7 +2342,7 @@ echo "configure:2285: checking for bsps" >&5
         bspdirs="$bspdirs $bspdir"
         
 echo $ac_n "checking for Makefile.in in c/src/lib/libbsp/$bspcpudir/$bspdir""... $ac_c" 1>&6
-echo "configure:2340: checking for Makefile.in in c/src/lib/libbsp/$bspcpudir/$bspdir" >&5
+echo "configure:2346: checking for Makefile.in in c/src/lib/libbsp/$bspcpudir/$bspdir" >&5
 if test -d $srcdir/c/src/lib/libbsp/$bspcpudir/$bspdir; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2359,7 +2365,7 @@ fi
 # find all the CPU dependent library Makefiles
 
 echo $ac_n "checking for Makefile.in in c/src/lib/libcpu/$target_cpu""... $ac_c" 1>&6
-echo "configure:2363: checking for Makefile.in in c/src/lib/libcpu/$target_cpu" >&5
+echo "configure:2369: checking for Makefile.in in c/src/lib/libcpu/$target_cpu" >&5
 if test -d $srcdir/c/src/lib/libcpu/$target_cpu; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2376,7 +2382,7 @@ fi
 if test "$skip_startfiles" != "yes"; then
   
 echo $ac_n "checking for Makefile.in in c/src/lib/start/$target_cpu""... $ac_c" 1>&6
-echo "configure:2380: checking for Makefile.in in c/src/lib/start/$target_cpu" >&5
+echo "configure:2386: checking for Makefile.in in c/src/lib/start/$target_cpu" >&5
 if test -d $srcdir/c/src/lib/start/$target_cpu; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2418,7 +2424,7 @@ fi
 
 # If the tests are enabled, then find all the test suite Makefiles
 echo $ac_n "checking if the test suites are enabled? ""... $ac_c" 1>&6
-echo "configure:2422: checking if the test suites are enabled? " >&5
+echo "configure:2428: checking if the test suites are enabled? " >&5
 tests_enabled=yes
 # Check whether --enable-tests or --disable-tests was given.
 if test "${enable_tests+set}" = set; then
@@ -2437,7 +2443,7 @@ fi
 
 
 echo $ac_n "checking for Makefile.in in c/src/tests/tools/$target_cpu""... $ac_c" 1>&6
-echo "configure:2441: checking for Makefile.in in c/src/tests/tools/$target_cpu" >&5
+echo "configure:2447: checking for Makefile.in in c/src/tests/tools/$target_cpu" >&5
 if test -d $srcdir/c/src/tests/tools/$target_cpu; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2454,7 +2460,7 @@ fi
 if test "$tests_enabled" = "yes"; then
    
 echo $ac_n "checking for Makefile.in in c/src/tests/libtests""... $ac_c" 1>&6
-echo "configure:2458: checking for Makefile.in in c/src/tests/libtests" >&5
+echo "configure:2464: checking for Makefile.in in c/src/tests/libtests" >&5
 if test -d $srcdir/c/src/tests/libtests; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2469,7 +2475,7 @@ fi
 
    
 echo $ac_n "checking for Makefile.in in c/src/tests/sptests""... $ac_c" 1>&6
-echo "configure:2473: checking for Makefile.in in c/src/tests/sptests" >&5
+echo "configure:2479: checking for Makefile.in in c/src/tests/sptests" >&5
 if test -d $srcdir/c/src/tests/sptests; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2484,7 +2490,7 @@ fi
 
    
 echo $ac_n "checking for Makefile.in in c/src/tests/tmtests""... $ac_c" 1>&6
-echo "configure:2488: checking for Makefile.in in c/src/tests/tmtests" >&5
+echo "configure:2494: checking for Makefile.in in c/src/tests/tmtests" >&5
 if test -d $srcdir/c/src/tests/tmtests; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2499,7 +2505,7 @@ fi
 
    
 echo $ac_n "checking for Makefile.in in c/src/tests/mptests""... $ac_c" 1>&6
-echo "configure:2503: checking for Makefile.in in c/src/tests/mptests" >&5
+echo "configure:2509: checking for Makefile.in in c/src/tests/mptests" >&5
 if test -d $srcdir/c/src/tests/mptests; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2515,7 +2521,7 @@ fi
    if test "$RTEMS_HAS_POSIX_API" = "yes"; then
      
 echo $ac_n "checking for Makefile.in in c/src/tests/psxtests""... $ac_c" 1>&6
-echo "configure:2519: checking for Makefile.in in c/src/tests/psxtests" >&5
+echo "configure:2525: checking for Makefile.in in c/src/tests/psxtests" >&5
 if test -d $srcdir/c/src/tests/psxtests; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2533,7 +2539,7 @@ fi
 
 # If the HWAPI is enabled, the find the HWAPI Makefiles
 echo $ac_n "checking if the HWAPI is enabled? ""... $ac_c" 1>&6
-echo "configure:2537: checking if the HWAPI is enabled? " >&5
+echo "configure:2543: checking if the HWAPI is enabled? " >&5
 # Check whether --enable-hwapi or --disable-hwapi was given.
 if test "${enable_hwapi+set}" = set; then
   enableval="$enable_hwapi"
@@ -2544,7 +2550,7 @@ if test "${enable_hwapi+set}" = set; then
             makefiles="$makefiles c/src/lib/libhwapi/Makefile"
             
 echo $ac_n "checking for Makefile.in in c/src/lib/libhwapi/analog""... $ac_c" 1>&6
-echo "configure:2548: checking for Makefile.in in c/src/lib/libhwapi/analog" >&5
+echo "configure:2554: checking for Makefile.in in c/src/lib/libhwapi/analog" >&5
 if test -d $srcdir/c/src/lib/libhwapi/analog; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2559,7 +2565,7 @@ fi
 
             
 echo $ac_n "checking for Makefile.in in c/src/lib/libhwapi/discrete""... $ac_c" 1>&6
-echo "configure:2563: checking for Makefile.in in c/src/lib/libhwapi/discrete" >&5
+echo "configure:2569: checking for Makefile.in in c/src/lib/libhwapi/discrete" >&5
 if test -d $srcdir/c/src/lib/libhwapi/discrete; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2574,7 +2580,7 @@ fi
 
             
 echo $ac_n "checking for Makefile.in in c/src/lib/libhwapi/drivers""... $ac_c" 1>&6
-echo "configure:2578: checking for Makefile.in in c/src/lib/libhwapi/drivers" >&5
+echo "configure:2584: checking for Makefile.in in c/src/lib/libhwapi/drivers" >&5
 if test -d $srcdir/c/src/lib/libhwapi/drivers; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2589,7 +2595,7 @@ fi
 
             
 echo $ac_n "checking for Makefile.in in c/src/lib/libhwapi/non_volatile_memory""... $ac_c" 1>&6
-echo "configure:2593: checking for Makefile.in in c/src/lib/libhwapi/non_volatile_memory" >&5
+echo "configure:2599: checking for Makefile.in in c/src/lib/libhwapi/non_volatile_memory" >&5
 if test -d $srcdir/c/src/lib/libhwapi/non_volatile_memory; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2604,7 +2610,7 @@ fi
 
             
 echo $ac_n "checking for Makefile.in in c/src/lib/libhwapi/serial""... $ac_c" 1>&6
-echo "configure:2608: checking for Makefile.in in c/src/lib/libhwapi/serial" >&5
+echo "configure:2614: checking for Makefile.in in c/src/lib/libhwapi/serial" >&5
 if test -d $srcdir/c/src/lib/libhwapi/serial; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2619,7 +2625,7 @@ fi
 
             
 echo $ac_n "checking for Makefile.in in c/src/lib/libhwapi/support""... $ac_c" 1>&6
-echo "configure:2623: checking for Makefile.in in c/src/lib/libhwapi/support" >&5
+echo "configure:2629: checking for Makefile.in in c/src/lib/libhwapi/support" >&5
 if test -d $srcdir/c/src/lib/libhwapi/support; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2634,7 +2640,7 @@ fi
 
             
 echo $ac_n "checking for Makefile.in in c/src/lib/libhwapi/wrapup""... $ac_c" 1>&6
-echo "configure:2638: checking for Makefile.in in c/src/lib/libhwapi/wrapup" >&5
+echo "configure:2644: checking for Makefile.in in c/src/lib/libhwapi/wrapup" >&5
 if test -d $srcdir/c/src/lib/libhwapi/wrapup; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2679,7 +2685,7 @@ fi
 # pick up all the Makefiles in required parts of the tree
 
 echo $ac_n "checking for Makefile.in in c/build-tools""... $ac_c" 1>&6
-echo "configure:2683: checking for Makefile.in in c/build-tools" >&5
+echo "configure:2689: checking for Makefile.in in c/build-tools" >&5
 if test -d $srcdir/c/build-tools; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2694,7 +2700,7 @@ fi
 
 
 echo $ac_n "checking for Makefile.in in make""... $ac_c" 1>&6
-echo "configure:2698: checking for Makefile.in in make" >&5
+echo "configure:2704: checking for Makefile.in in make" >&5
 if test -d $srcdir/make; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2709,7 +2715,7 @@ fi
 
 
 echo $ac_n "checking for Makefile.in in c/src/lib/libmisc""... $ac_c" 1>&6
-echo "configure:2713: checking for Makefile.in in c/src/lib/libmisc" >&5
+echo "configure:2719: checking for Makefile.in in c/src/lib/libmisc" >&5
 if test -d $srcdir/c/src/lib/libmisc; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
@@ -2724,7 +2730,7 @@ fi
 
 
 echo $ac_n "checking for Makefile.in in c/src/tests/samples""... $ac_c" 1>&6
-echo "configure:2728: checking for Makefile.in in c/src/tests/samples" >&5
+echo "configure:2734: checking for Makefile.in in c/src/tests/samples" >&5
 if test -d $srcdir/c/src/tests/samples; then
   rtems_av_save_dir=`pwd`;
   cd $srcdir;
diff --git a/configure.in b/configure.in
index 55f0d0106e..c928763c1a 100644
--- a/configure.in
+++ b/configure.in
@@ -153,6 +153,12 @@ case "${target}" in
         # override these settings
 	RTEMS_HAS_POSIX_API=no
 	;;
+  i[[3456]]86-unknown-freebsd2.[[12]]*) # unix "simulator" port
+	target_cpu=unix
+        RTEMS_HOST=FreeBSD
+        # override these settings
+	RTEMS_HAS_POSIX_API=no
+	;;
   no_cpu-*rtems*)
         target_cpu=no_cpu
 	RTEMS_HAS_POSIX_API=no
diff --git a/cpukit/libcsupport/src/termios.c b/cpukit/libcsupport/src/termios.c
index 648e2c0c3e..0857f0eae7 100644
--- a/cpukit/libcsupport/src/termios.c
+++ b/cpukit/libcsupport/src/termios.c
@@ -24,6 +24,20 @@
 #include <termios.h>
 #include <unistd.h>
 
+/*
+ *  FreeBSD does not support a full POSIX termios so we have to help it out
+ */
+
+
+#if defined(__FreeBSD__)
+#define XTABS   0
+#define ONLRET  0
+#define ONOCR   0
+#define TABDLY  0
+#define OLCUC   0
+#define ILCUC   0
+#endif
+
 /*
  * The size of the cooked buffer
  */
diff --git a/cpukit/score/cpu/unix/cpu.c b/cpukit/score/cpu/unix/cpu.c
index 5b927b7a40..796d46d267 100644
--- a/cpukit/score/cpu/unix/cpu.c
+++ b/cpukit/score/cpu/unix/cpu.c
@@ -152,8 +152,12 @@ void _CPU_Signal_initialize( void )
   sigaction(SIGUSR1, &act, 0);
   sigaction(SIGUSR2, &act, 0);
   sigaction(SIGCHLD, &act, 0);
+#ifdef SIGCLD
   sigaction(SIGCLD, &act, 0);
+#endif
+#ifdef SIGPWR
   sigaction(SIGPWR, &act, 0);
+#endif
   sigaction(SIGVTALRM, &act, 0);
   sigaction(SIGPROF, &act, 0);
   sigaction(SIGIO, &act, 0);
@@ -741,9 +745,10 @@ void _CPU_Stray_signal(int sig_num)
 
   switch (sig_num)
   {
+#ifdef SIGCLD
       case SIGCLD:
           break;
-
+#endif
       default:
       {
         /*
@@ -987,7 +992,7 @@ void _CPU_SHM_Init(
 
         help.val = 1;
         status = semctl( _CPU_SHM_Semid, i, SETVAL, help );
-#elif defined(__linux__)
+#elif defined(__linux__) || defined(__FreeBSD__)
         union semun help;
 
         help.val = 1;
diff --git a/tools/cpu/generic/size_rtems.in b/tools/cpu/generic/size_rtems.in
index 93f3507579..e3dde44a81 100644
--- a/tools/cpu/generic/size_rtems.in
+++ b/tools/cpu/generic/size_rtems.in
@@ -54,6 +54,13 @@ case $target in
       echo Not supported on unix port.
       exit 0
       ;;
+  i[3456]86-unknown-freebsd2.[12]*)
+      echo freebsd
+      rtems_cpu=unix
+      bsp=freebsd2
+      echo Not supported on unix port.
+      exit 0
+      ;;
   *-rtems*)
     cpu=`echo $target | sed -e 's/-.*//'`
     rtems_cpu=$cpu
-- 
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