Comment #14 on issue 615 by [email protected]: "instanceof" operator
broken in V8 v2.0.6.4
http://code.google.com/p/v8/issues/detail?id=615
shell_g and libv8_g.a are debug builds, with debug symbols and a lower
level of gcc
optimizations.
1. It seems like the shared library is not the issue, but you might try it
in debug
mode to rule it out:
scons arch=x64 library=shared sample=shell mode=debug
2. I'm not sure what version of gcc you're using. You might try the
release build
with strict aliasing disabled. In the root of your v8 source tree is a
file called
SConstruct. Toward the beginning are the lines:
if os.environ.get('GCC_VERSION') == '44':
GCC_EXTRA_CCFLAGS = ['-fno-tree-vrp']
GCC_DTOA_EXTRA_CCFLAGS = ['-fno-strict-aliasing']
else:
GCC_EXTRA_CCFLAGS = []
GCC_DTOA_EXTRA_CCFLAGS = []
You can add '--fno-strict-aliasing' to GCC_EXTRA_CCFLAGS in both arms of the
conditional:
if os.environ.get('GCC_VERSION') == '44':
GCC_EXTRA_CCFLAGS = ['-fno-tree-vrp', '--fno-strict-aliasing']
GCC_DTOA_EXTRA_CCFLAGS = ['-fno-strict-aliasing']
else:
GCC_EXTRA_CCFLAGS = ['--fno-strict-aliasing']
GCC_DTOA_EXTRA_CCFLAGS = []
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