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mirror of https://git.FreeBSD.org/src.git synced 2024-12-17 10:26:15 +00:00
freebsd/sys/amd64
John Dyson d0aea04fe0 Let the VM system know that on certain arch's that VM_PROT_READ
also implies VM_PROT_EXEC.  We support it that way for now,
since the break system call by default gives VM_PROT_ALL.  Now
we have a better chance of coalesing map entries when mixing
mmap/break type operations.  This was contributing to excessive
numbers of map entries on the modula-3 runtime system.  The
problem is still not "solved", but the situation makes more
sense.

Eventually, when we work on architectures where VM_PROT_READ
is orthogonal to VM_PROT_EXEC, we will have to visit this
issue carefully (esp. regarding security issues.)
1996-12-30 05:31:21 +00:00
..
amd64 Superficial clean-up of useracc calls. (The useracc usage of 1996-12-29 02:29:41 +00:00
conf Mention amd driver in comment regarding PCI drivers. 1996-12-21 02:09:04 +00:00
include Let the VM system know that on certain arch's that VM_PROT_READ 1996-12-30 05:31:21 +00:00
isa Disabled i586-optimized copyin and copyout again. The fault handler 1996-12-28 12:19:25 +00:00
pci More merge and update. 1996-10-30 22:41:46 +00:00
Makefile