Initial OpenBSD support

Patch by Peter Valchev <pvalchev@gmail.com>.

TBR=ager@chromium.org
Review URL: http://codereview.chromium.org/465002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3398 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

SConstruct

@@ -149,6 +149,11 @@ LIBRARY_FLAGS = {
       'LIBPATH' : ['/usr/local/lib'],
       'CCFLAGS':      ['-ansi'],
     },
+    'os:openbsd': {
+      'CPPPATH' : ['/usr/local/include'],
+      'LIBPATH' : ['/usr/local/lib'],
+      'CCFLAGS':      ['-ansi'],
+    },
     'os:win32': {
       'CCFLAGS':      ['-DWIN32'],
       'CXXFLAGS':     ['-DWIN32'],
@@ -299,6 +304,9 @@ MKSNAPSHOT_EXTRA_FLAGS = {
     'os:freebsd': {
       'LIBS': ['execinfo', 'pthread']
     },
+    'os:openbsd': {
+      'LIBS': ['execinfo', 'pthread']
+    },
     'os:win32': {
       'LIBS': ['winmm', 'ws2_32'],
     },
@@ -345,6 +353,9 @@ CCTEST_EXTRA_FLAGS = {
     'os:freebsd': {
       'LIBS':         ['execinfo', 'pthread']
     },
+    'os:openbsd': {
+      'LIBS':         ['execinfo', 'pthread']
+    },
     'os:win32': {
       'LIBS': ['winmm', 'ws2_32']
     },
@@ -398,7 +409,11 @@ SAMPLE_FLAGS = {
     },
     'os:freebsd': {
       'LIBPATH' : ['/usr/local/lib'],
-      'LIBS':         ['execinfo', 'pthread']
+      'LIBS':     ['execinfo', 'pthread']
+    },
+    'os:openbsd': {
+      'LIBPATH' : ['/usr/local/lib'],
+      'LIBS':     ['execinfo', 'pthread']
     },
     'os:win32': {
       'LIBS':         ['winmm', 'ws2_32']
@@ -505,6 +520,9 @@ D8_FLAGS = {
     'os:freebsd': {
       'LIBS': ['pthread'],
     },
+    'os:openbsd': {
+      'LIBS': ['pthread'],
+    },
     'os:android': {
       'LIBPATH':     [ANDROID_TOP + '/out/target/product/generic/obj/lib'],
       'LINKFLAGS':    ANDROID_LINKFLAGS,
@@ -555,7 +573,7 @@ SIMPLE_OPTIONS = {
     'help': 'the toolchain to use (' + TOOLCHAIN_GUESS + ')'
   },
   'os': {
-    'values': ['freebsd', 'linux', 'macos', 'win32', 'android'],
+    'values': ['freebsd', 'linux', 'macos', 'win32', 'android', 'openbsd'],
     'default': OS_GUESS,
     'help': 'the os to build for (' + OS_GUESS + ')'
   },

src/SConscript

@@ -159,6 +159,7 @@ SOURCES = {
     """),
   'simulator:arm': ['arm/simulator-arm.cc'],
   'os:freebsd': ['platform-freebsd.cc', 'platform-posix.cc'],
+  'os:openbsd': ['platform-openbsd.cc', 'platform-posix.cc'],
   'os:linux':   ['platform-linux.cc', 'platform-posix.cc'],
   'os:android': ['platform-linux.cc', 'platform-posix.cc'],
   'os:macos':   ['platform-macos.cc', 'platform-posix.cc'],
@@ -187,6 +188,9 @@ D8_FILES = {
   'os:freebsd': [
     'd8-posix.cc'
   ],
+  'os:openbsd': [
+    'd8-posix.cc'
+  ],
   'os:win32': [
     'd8-windows.cc'
   ],

src/dtoa-config.c

@@ -38,7 +38,7 @@
  */
 
 #if !(defined(__APPLE__) && defined(__MACH__)) && \
-    !defined(WIN32) && !defined(__FreeBSD__)
+    !defined(WIN32) && !defined(__FreeBSD__) && !defined(__OpenBSD__)
 #include <endian.h>
 #endif
 #include <math.h>
@@ -47,14 +47,16 @@
 /* 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) && \
-    !defined(__FreeBSD__) && __FLOAT_WORD_ORDER == __BIG_ENDIAN
+    !defined(__FreeBSD__) && !defined(__OpenBSD__) && \
+    __FLOAT_WORD_ORDER == __BIG_ENDIAN
 #define  IEEE_MC68k
 #else
 #define  IEEE_8087
 #endif
 
 #define __MATH_H__
-#if defined(__APPLE__) && defined(__MACH__) || defined(__FreeBSD__)
+#if defined(__APPLE__) && defined(__MACH__) || defined(__FreeBSD__) || \
+    defined(__OpenBSD__)
 /* 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

src/platform-posix.cc

@@ -27,7 +27,7 @@
 
 // Platform specific code for POSIX goes here. This is not a platform on its
 // own but contains the parts which are the same across POSIX platforms Linux,
-// Mac OS and FreeBSD.
+// Mac OS, FreeBSD and OpenBSD.
 
 #include <unistd.h>
 #include <errno.h>

tools/gyp/v8.gyp

@@ -506,6 +506,17 @@
             ],
           }
         ],
+        ['OS=="openbsd"', {
+            'link_settings': {
+              'libraries': [
+                '-L/usr/local/lib -lexecinfo',
+            ]},
+            'sources': [
+              '../../src/platform-openbsd.cc',
+              '../../src/platform-posix.cc'
+            ],
+          }
+        ],
         ['OS=="mac"', {
           'sources': [
             '../../src/platform-macos.cc',

tools/utils.py

@@ -55,6 +55,8 @@ def GuessOS():
     return 'win32'
   elif id == 'FreeBSD':
     return 'freebsd'
+  elif id == 'OpenBSD':
+    return 'openbsd'
   else:
     return None