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authorVince Weaver <vince@csl.cornell.edu>2009-11-04 00:47:12 -0500
committerVince Weaver <vince@csl.cornell.edu>2009-11-04 00:47:12 -0500
commita1042db29098da395d0de96c652c41904feb425a (patch)
treea6ce96e097b8082c6404c819851f0cbe86fa8ca9 /RELEASE_NOTES
parent9b0a747dd41d3383769be1cd737733902875a528 (diff)
downloadgem5-a1042db29098da395d0de96c652c41904feb425a.tar.xz
X86: Enable x86_64 vsyscall support
64-bit vsyscall is different than 32-bit. There are only two syscalls, time and gettimeofday. On a real system, there is complicated code that implements these without entering the kernel. That would be complicated to implement in m5. Instead we just place code that calls the regular syscalls (this is how tools such as valgrind handle this case). This is needed for the perlbmk spec2k benchmark.
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