Module Name: src
Committed By: maxv
Date: Sat Nov 21 12:34:48 UTC 2015
Modified Files:
src/sys/arch/amd64/amd64: copy.S
Log Message:
Remove the amd64 implementation of fuword and suword. They are not used in
the MI+amd64 code - Christos replaced them yesterday by copy*.
They are both buggy:
- suword does not properly check the userspace limit: 64 bits are copied,
but the max address checked is VM_MAXUSER_ADDRESS-4, which means that 4
bytes may overflow. Reported by Ed Schouten.
- fuword is supposed to be symmetrical with suword. But it uses 32bit
registers, so it stores 32bit values! Spotted by Chuck (chs@).
To generate a diff of this commit:
cvs rdiff -u -r1.18 -r1.19 src/sys/arch/amd64/amd64/copy.S
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
