Merge branch 'x86-urgent-for-linus' of git://tesla.tglx.de/git/linux-2.6-tip
* 'x86-urgent-for-linus' of git://tesla.tglx.de/git/linux-2.6-tip: x86: Default to vsyscall=native for now
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@ -2706,10 +2706,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
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functions are at fixed addresses, they make nice
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targets for exploits that can control RIP.
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emulate [default] Vsyscalls turn into traps and are
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emulated reasonably safely.
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emulate Vsyscalls turn into traps and are emulated
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reasonably safely.
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native Vsyscalls are native syscall instructions.
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native [default] Vsyscalls are native syscall
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instructions.
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This is a little bit faster than trapping
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and makes a few dynamic recompilers work
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better than they would in emulation mode.
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@ -56,7 +56,7 @@ DEFINE_VVAR(struct vsyscall_gtod_data, vsyscall_gtod_data) =
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.lock = __SEQLOCK_UNLOCKED(__vsyscall_gtod_data.lock),
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};
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static enum { EMULATE, NATIVE, NONE } vsyscall_mode = EMULATE;
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static enum { EMULATE, NATIVE, NONE } vsyscall_mode = NATIVE;
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static int __init vsyscall_setup(char *str)
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{
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