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Date: Thu, 5 Apr 2012 17:55:43 -0400 From: Xin Tong <xerox.time.tech@...il.com> To: linux-kernel <linux-kernel@...r.kernel.org> Subject: syscall descriptor table Can anyone please describe to me how x86 syscall works ( i.e. how it is dispatched to the correct function) on x86 ? mov $1, %eax ;; __NR_exit = 1 mov $42, %ebx ;; status = 42 sysenter ;; perform the syscall! what does the sysenter instruction do ? what is the difference aganst int 0x80. Thanks Xin -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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