Basic GDB JIT Interface integration.

SConstruct

 # Copyright 2010 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 211 matching lines @@
       'CCFLAGS':      ['-m32'],
       'LINKFLAGS':    ['-m32'],
     },
     'arch:x64': {
       'CPPDEFINES':   ['V8_TARGET_ARCH_X64'],
       'CCFLAGS':      ['-m64'],
       'LINKFLAGS':    ['-m64'],
     },
     'prof:oprofile': {
       'CPPDEFINES':   ['ENABLE_OPROFILE_AGENT']
+    },
+    'gdbjit:on': {
+      'CPPDEFINES':   ['ENABLE_GDBJIT_INTERFACE']
     }
   },
   'msvc': {
     'all': {
       'CCFLAGS':      ['$DIALECTFLAGS', '$WARNINGFLAGS'],
       'CXXFLAGS':     ['$CCFLAGS', '/GR-', '/Gy'],
       'CPPDEFINES':   ['WIN32'],
       'LINKFLAGS':    ['/INCREMENTAL:NO', '/NXCOMPAT', '/IGNORE:4221'],
       'CCPDBFLAGS':   ['/Zi']
     },
@@ skipping 455 matching lines @@
   'snapshot': {
     'values': ['on', 'off', 'nobuild'],
     'default': 'off',
     'help': 'build using snapshots for faster start-up'
   },
   'prof': {
     'values': ['on', 'off', 'oprofile'],
     'default': 'off',
     'help': 'enable profiling of build target'
   },
+  'gdbjit': {
+    'values': ['on', 'off'],
+    'default': 'off',
+    'help': 'enable GDB JIT interface'
+  },
   'library': {
     'values': ['static', 'shared'],
     'default': 'static',
     'help': 'the type of library to produce'
   },
   'vmstate': {
     'values': ['on', 'off'],
     'default': 'off',
     'help': 'enable VM state tracking'
   },
@@ skipping 146 matching lines @@
 
 def VerifyOptions(env):
   if not IsLegal(env, 'mode', ['debug', 'release']):
     return False
   if not IsLegal(env, 'sample', ["shell", "process", "lineprocessor"]):
     return False
   if not IsLegal(env, 'regexp', ["native", "interpreted"]):
     return False
   if env['os'] == 'win32' and env['library'] == 'shared' and env['prof'] == 'on':
     Abort("Profiling on windows only supported for static library.")
+  if env['gdbjit'] == 'on' and (env['os'] != 'linux' or (env['arch'] != 'ia32' and env['arch'] != 'x64')):
+    Abort("GDBJIT interface is supported only for 32-bit Linux target.")

[Erik Corry, 2011/01/05 09:00:15]

32-bit should perhaps be Intel-compatible?

[Vyacheslav Egorov (Chromium), 2011/01/18 16:10:42]

Done.

   if env['prof'] == 'oprofile' and env['os'] != 'linux':
     Abort("OProfile is only supported on Linux.")
   if env['os'] == 'win32' and env['soname'] == 'on':
     Abort("Shared Object soname not applicable for Windows.")
   if env['soname'] == 'on' and env['library'] == 'static':
     Abort("Shared Object soname not applicable for static library.")
   if env['os'] != 'win32' and env['pgo'] != 'off':
     Abort("Profile guided optimization only supported on Windows.")
   if env['cache'] and not os.path.isdir(env['cache']):
     Abort("The specified cache directory does not exist.")
@@ skipping 273 matching lines @@
 # version of scons.  Also, there's a bug in some revisions that
 # doesn't allow this flag to be set, so we swallow any exceptions.
 # Lovely.
 try:
   SetOption('warn', 'no-deprecated')
 except:
   pass
 
 
 Build()