FreeBSD preliminary work.

-) You can't assume bash is installed. Scripts needs to be cleaned out of bashisms.
-) You can't assume python is in /usr/bin. Use env instead.
-) AF_INET is in sys/socket.h
-) Added port_platform's basic structure for FreeBSD, based off Darwin.
-) FreeBSD doesn't have and doesn't need libdl for OpenSSL.

Makefile

@@ -272,7 +272,10 @@ else
 IS_GIT_FOLDER = true
 endif
 
-OPENSSL_ALPN_CHECK_CMD = $(CC) $(CFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/openssl-alpn.c -lssl -lcrypto -ldl $(LDFLAGS)
+OPENSSL_ALPN_CHECK_CMD = $(CC) $(CFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/openssl-alpn.c -lssl -lcrypto $(LDFLAGS)
+ifeq ($(SYSTEM),Linux)
+OPENSSL_ALPN_CHECK_CMD += -ldl
+endif
 ZLIB_CHECK_CMD = $(CC) $(CFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/zlib.c -lz $(LDFLAGS)
 PERFTOOLS_CHECK_CMD = $(CC) $(CFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/perftools.c -lprofiler $(LDFLAGS)
 PROTOBUF_CHECK_CMD = $(CXX) $(CXXFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/protobuf.cc -lprotobuf $(LDFLAGS)
@@ -344,12 +347,17 @@ OPENSSL_MERGE_LIBS += $(LIBDIR)/$(CONFIG)/openssl/libssl.a $(LIBDIR)/$(CONFIG)/o
 # need to prefix these to ensure overriding system libraries
 CPPFLAGS := -Ithird_party/openssl/include $(CPPFLAGS)
 LDFLAGS := -L$(LIBDIR)/$(CONFIG)/openssl $(LDFLAGS)
+ifeq ($(SYSTEM),Linux)
 LIBS_SECURE = dl
+endif
 else
 NO_SECURE = true
 endif
 else
-LIBS_SECURE = ssl crypto dl
+LIBS_SECURE = ssl crypto
+ifeq ($(SYSTEM),Linux)
+LIBS_SECURE += dl
+endif
 endif
 
 LDLIBS_SECURE += $(addprefix -l, $(LIBS_SECURE))

include/grpc/support/port_platform.h

@@ -137,6 +137,30 @@
 #else /* _LP64 */
 #define GPR_ARCH_32 1
 #endif /* _LP64 */
+#elif defined(__FreeBSD__)
+#ifndef _BSD_SOURCE
+#define _BSD_SOURCE
+#endif
+#define GPR_CPU_POSIX 1
+#define GPR_GCC_ATOMIC 1
+#define GPR_POSIX_LOG 1
+#define GPR_POSIX_MULTIPOLL_WITH_POLL 1
+#define GPR_POSIX_WAKEUP_FD 1
+#define GPR_POSIX_NO_SPECIAL_WAKEUP_FD 1
+#define GPR_POSIX_SOCKET 1
+#define GPR_POSIX_SOCKETADDR 1
+#define GPR_POSIX_SOCKETUTILS 1
+#define GPR_POSIX_ENV 1
+#define GPR_POSIX_FILE 1
+#define GPR_POSIX_STRING 1
+#define GPR_POSIX_SYNC 1
+#define GPR_POSIX_TIME 1
+#define GPR_GETPID_IN_UNISTD_H 1
+#ifdef _LP64
+#define GPR_ARCH_64 1
+#else /* _LP64 */
+#define GPR_ARCH_32 1
+#endif /* _LP64 */
 #else
 #error Could not auto-detect platform
 #endif

templates/Makefile.template

@@ -289,7 +289,10 @@ else
 IS_GIT_FOLDER = true
 endif
 
-OPENSSL_ALPN_CHECK_CMD = $(CC) $(CFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/openssl-alpn.c -lssl -lcrypto -ldl $(LDFLAGS)
+OPENSSL_ALPN_CHECK_CMD = $(CC) $(CFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/openssl-alpn.c -lssl -lcrypto $(LDFLAGS)
+ifeq ($(SYSTEM),Linux)
+OPENSSL_ALPN_CHECK_CMD += -ldl
+endif
 ZLIB_CHECK_CMD = $(CC) $(CFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/zlib.c -lz $(LDFLAGS)
 PERFTOOLS_CHECK_CMD = $(CC) $(CFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/perftools.c -lprofiler $(LDFLAGS)
 PROTOBUF_CHECK_CMD = $(CXX) $(CXXFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/protobuf.cc -lprotobuf $(LDFLAGS)
@@ -361,12 +364,17 @@ OPENSSL_MERGE_LIBS += $(LIBDIR)/$(CONFIG)/openssl/libssl.a $(LIBDIR)/$(CONFIG)/o
 # need to prefix these to ensure overriding system libraries
 CPPFLAGS := -Ithird_party/openssl/include $(CPPFLAGS)
 LDFLAGS := -L$(LIBDIR)/$(CONFIG)/openssl $(LDFLAGS)
+ifeq ($(SYSTEM),Linux)
 LIBS_SECURE = dl
+endif
 else
 NO_SECURE = true
 endif
 else
-LIBS_SECURE = ssl crypto dl
+LIBS_SECURE = ssl crypto
+ifeq ($(SYSTEM),Linux)
+LIBS_SECURE += dl
+endif
 endif
 
 LDLIBS_SECURE += $(addprefix -l, $(LIBS_SECURE))

test/core/end2end/gen_build_json.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python2.7
+#!/usr/bin/env python
 # Copyright 2015, Google Inc.
 # All rights reserved.
 #

test/core/iomgr/tcp_server_posix_test.c

@@ -38,6 +38,7 @@
 #include <grpc/support/time.h>
 #include "test/core/util/test_config.h"
 
+#include <sys/socket.h>
 #include <netinet/in.h>
 #include <string.h>
 #include <unistd.h>

tools/buildgen/build-cleaner.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python
 # Copyright 2015, Google Inc.
 # All rights reserved.
 #

tools/buildgen/generate_projects.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 # Copyright 2015, Google Inc.
 # All rights reserved.
 #
@@ -31,7 +31,7 @@
 
 set -e
 
-if [ "x$TEST" == "x" ] ; then
+if [ "x$TEST" = "x" ] ; then
   TEST=false
 fi
 
@@ -61,12 +61,12 @@ for dir in . ; do
     out=${out%.*}  # strip template extension
     json_files="build.json $end2end_test_build"
     data=`for i in $json_files; do echo -n "-d $i "; done`
-    if [ $TEST == true ] ; then
+    if [ "x$TEST" = "xtrue" ] ; then
       actual_out=$out
       out=`mktemp /tmp/gentXXXXXX`
     fi
     $mako_renderer $plugins $data -o $out $file
-    if [ $TEST == true ] ; then
+    if [ "x$TEST" = "xtrue" ] ; then
       diff -q $out $actual_out
       rm $out
     fi

tools/buildgen/mako_renderer.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python2.7
+#!/usr/bin/env python
 # Copyright 2015, Google Inc.
 # All rights reserved.
 #

tools/run_tests/run_tests.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python2.7
+#!/usr/bin/env python
 # Copyright 2015, Google Inc.
 # All rights reserved.
 #