Apply patch from Alexander Botero-Lowry that adds FreeBSD platform

support.
Review URL: http://codereview.chromium.org/11347

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@815 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

AUTHORS

@@ -11,3 +11,4 @@ Jay Freeman <saurik@saurik.com>
 Daniel James <dnljms@gmail.com>
 Paolo Giarrusso <p.giarrusso@gmail.com>
 Daniel Andersson <kodandersson@gmail.com>
+Alexander Botero-Lowry <alexbl@FreeBSD.org>

SConstruct

@@ -54,6 +54,9 @@ LIBRARY_FLAGS = {
     'mode:release': {
       'CCFLAGS':      ['-O3', '-fomit-frame-pointer']
     },
+    'os:freebsd': {
+      'LIBS':         ['execinfo']
+    },
     'wordsize:64': {
       'CCFLAGS':      ['-m32'],
       'LINKFLAGS':    ['-m32']
@@ -186,6 +189,9 @@ SAMPLE_FLAGS = {
       'LIBS': ['pthread'],
       'LIBPATH': ['.']
     },
+    'os:freebsd': {
+      'LIBS':         ['execinfo']
+    },
     'wordsize:64': {
       'CCFLAGS':      ['-m32'],
       'LINKFLAGS':    ['-m32']
@@ -264,7 +270,7 @@ SIMPLE_OPTIONS = {
     'help': 'the toolchain to use'
   },
   'os': {
-    'values': ['linux', 'macos', 'win32'],
+    'values': ['freebsd', 'linux', 'macos', 'win32'],
     'default': OS_GUESS,
     'help': 'the os to build for'
   },
@@ -541,7 +547,7 @@ def Build():
   env.Alias('cctests', cctests)
   env.Alias('sample', samples)
   env.Alias('d8', d8s)
-  
+
   if env['sample']:
     env.Default('sample')
   else:

src/SConscript

@@ -55,10 +55,11 @@ SOURCES = {
       'cpu-ia32.cc', 'disasm-ia32.cc', 'frames-ia32.cc', 'ic-ia32.cc',
       'macro-assembler-ia32.cc', 'stub-cache-ia32.cc'],
   'simulator:arm': ['simulator-arm.cc'],
-  'os:linux':  ['platform-linux.cc'],
-  'os:macos':  ['platform-macos.cc'],
-  'os:nullos': ['platform-nullos.cc'],
-  'os:win32':  ['platform-win32.cc'],
+  'os:freebsd': ['platform-freebsd.cc'],
+  'os:linux':   ['platform-linux.cc'],
+  'os:macos':   ['platform-macos.cc'],
+  'os:nullos':  ['platform-nullos.cc'],
+  'os:win32':   ['platform-win32.cc'],
   'mode:release': [],
   'mode:debug': ['objects-debug.cc', 'prettyprinter.cc']
 }

src/dtoa-config.c

@@ -37,7 +37,8 @@
  * subtly wrong.
  */
 
-#if !(defined(__APPLE__) && defined(__MACH__)) && !defined(WIN32)
+#if !(defined(__APPLE__) && defined(__MACH__)) && \
+    !defined(WIN32) && !defined(__FreeBSD__)
 #include <endian.h>
 #endif
 #include <math.h>
@@ -46,17 +47,18 @@
 /* The floating point word order on ARM is big endian when floating point
  * emulation is used, even if the byte order is little endian */
 #if !(defined(__APPLE__) && defined(__MACH__)) && !defined(WIN32) && \
-  __FLOAT_WORD_ORDER == __BIG_ENDIAN
+    !defined(__FreeBSD__) && __FLOAT_WORD_ORDER == __BIG_ENDIAN
 #define  IEEE_MC68k
 #else
 #define  IEEE_8087
 #endif
 
 #define __MATH_H__
-#if defined(__APPLE__) && defined(__MACH__)
-/* stdlib.h on Apple's 10.5 and later SDKs will mangle the name of strtod.
- * If it's included after strtod is redefined as gay_strtod, it will mangle
- * the name of gay_strtod, which is unwanted. */
+#if defined(__APPLE__) && defined(__MACH__) || defined(__FreeBSD__)
+/* stdlib.h on FreeBSD and Apple's 10.5 and later SDKs will mangle the
+ * name of strtod.  If it's included after strtod is redefined as
+ * gay_strtod, it will mangle the name of gay_strtod, which is
+ * unwanted. */
 #include <stdlib.h>
 #endif
 /* Make sure we use the David M. Gay version of strtod(). On Linux, we

tools/utils.py

@@ -42,7 +42,7 @@ def ReadLinesFrom(name):
     list.append(line)
   return list
 
-  
+
 def GuessOS():
   id = platform.system()
   if id == 'Linux':
@@ -53,6 +53,8 @@ def GuessOS():
     # On Windows Vista platform.system() can return 'Microsoft' with some
     # versions of Python, see http://bugs.python.org/issue1082
     return 'win32'
+  elif id == 'FreeBSD':
+    return 'freebsd'
   else:
     return None