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authordfr <dfr@FreeBSD.org>2001-02-02 10:20:30 +0000
committerdfr <dfr@FreeBSD.org>2001-02-02 10:20:30 +0000
commitfed402db9f07a884ada2c96768923fe70d39bbed (patch)
tree77f6b5f287ff0410f9b468d6e3fe32d52ff96564 /libexec/tftpd/tftpd.8
parent4ae46f175424455223efc4900a37984cb683378d (diff)
downloadFreeBSD-src-fed402db9f07a884ada2c96768923fe70d39bbed.zip
FreeBSD-src-fed402db9f07a884ada2c96768923fe70d39bbed.tar.gz
* Move exception_return to exception.s which is a more logical home for it.
* Optimise the return path for syscalls so that they only restore a minimal set of registers instead of performing a full exception_return. A new flag in the trapframe indicates that the frame only holds partial state. When it is necessary to perform a full state restore (e.g. after an execve or signal), the flag is cleared to force a full restore.
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