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a47e5d473b
freebsd-dev/sys
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Marcel Moolenaar a47e5d473b Fix fu{byte|word*} and su{byte|word*}: 
o  If the address was not within user space we jumped to fusufault
   where we would clear pcb_onfault and return 0. There are two
   bugs here:
   1. We never got to the point where we assigned the address of
      pcb_onfault to r15, which means that we would clobber some
      random memory location, including I/O space or ROM.
   2. We're supposed to return -1 on error.
o  Make sure we have proper memory ordering for setting pcb_onfault,
   doing the memory access to user space and clearing pcb_onfault.
   For the fu* family of functions this means that we need a mf
   instruction, because we don't have acquire semantics on stores
   and release semantics on loads (hence st;ld cannot be ordered
   without intermediate mf).

While here, implement casuptr() so that we are a (small) step
closer to supporting libthr and deobfuscate the non-implementation
of {f|s}uswintr.

Approved by: re@ (blanket)
2003-05-27 01:00:12 +00:00
..
alpha De-orbit bus_dmamem_alloc_size(). It's a hack and was never used anyways. 2003-05-26 04:00:52 +00:00
amd64 De-orbit bus_dmamem_alloc_size(). It's a hack and was never used anyways. 2003-05-26 04:00:52 +00:00
arm sys/sys/limits.h: 2003-05-19 20:29:07 +00:00
boot Fixed the markup and wording of the kern.ipc.nsfbufs tunable. 2003-05-17 22:17:23 +00:00
cam Add a quirk for OTi USB flash key. 2003-05-15 17:35:35 +00:00
coda - Move p->p_sigmask to td->td_sigmask. Signal masks will be per thread with 2003-03-31 22:49:17 +00:00
compat Deal with the user VM space expanding. 32 bit applications do not like 2003-05-23 05:07:33 +00:00
conf Major pmap rework to take advantage of the larger address space on amd64 2003-05-23 05:04:54 +00:00
contrib This commit was generated by cvs2svn to compensate for changes in r115013, 2003-05-15 05:04:44 +00:00
crypto Assembly files put thru the C preprocessor need to have C style comments. 2003-04-21 16:30:12 +00:00
ddb Move the _oncpu entry from the KSE to the thread. 2003-04-10 17:35:44 +00:00
dev This driver supports the 2920C not the 2920. 2003-05-26 21:45:09 +00:00
fs Clean up proc locking in procfs: make sure the proc lock is held before 2003-05-05 15:12:51 +00:00
geom Don't do silly thing if the disk_create() event gets canceled. 2003-05-25 16:57:10 +00:00
gnu This commit was generated by cvs2svn to compensate for changes in r113778, 2003-04-21 02:27:52 +00:00
i4b - Add vm_paddr_t, a physical address type. This is required for systems 2003-03-25 00:07:06 +00:00
i386 De-orbit bus_dmamem_alloc_size(). It's a hack and was never used anyways. 2003-05-26 04:00:52 +00:00
ia64 Fix fu{byte|word*} and su{byte|word*}: 2003-05-27 01:00:12 +00:00
isa Only use the pc bios stuff on i386's. I think this might even be unused 2003-05-01 04:23:15 +00:00
isofs/cd9660 Rename vfs_stdsync function to vfs_stdnosync which matches more 2003-03-11 22:15:10 +00:00
kern Copy the va_list in sbuf_vprintf() before passing it to vsnprintf(), 2003-05-25 19:03:08 +00:00
libkern Deprecate machine/limits.h in favor of new sys/limits.h. 2003-04-29 13:36:06 +00:00
modules Move the ips driver from ${MACHINE_ARCH} == "i386" to ${MACHINE} == "i386". 2003-05-13 11:26:08 +00:00
net Define a link layer MIB for ATM. Most fields of this MIB are needed by 2003-05-05 16:35:52 +00:00
netatalk - Use if_broadcastaddr from struct ifnet rather than relying on 2003-03-21 17:53:16 +00:00
netatm Use __FBSDID rather than rcsid[]. 2003-04-03 21:36:33 +00:00
netgraph fix a cut-n-paste error. 2003-05-15 18:51:28 +00:00
netinet Correct a bug introduced with reduced TCP state handling; make 2003-05-07 05:26:27 +00:00
netinet6 Add definitions for IN6ADDR_LINKLOCAL_ALLMDNS_INIT and INADDR_ALLMDNS_GROUP. 2003-04-29 22:03:46 +00:00
netipsec Introduce an M_ASSERTPKTHDR() macro which performs the very common task 2003-04-08 14:25:47 +00:00
netipx Remove unimplemented IP-in-IPX encapsulation support (options IPTUNNEL). 2003-03-08 06:58:22 +00:00
netkey Introduce an M_ASSERTPKTHDR() macro which performs the very common task 2003-04-08 14:25:47 +00:00
netnatm Introduce an M_ASSERTPKTHDR() macro which performs the very common task 2003-04-08 14:25:47 +00:00
netncp - Merge struct procsig with struct sigacts. 2003-05-13 20:36:02 +00:00
netsmb - Merge struct procsig with struct sigacts. 2003-05-13 20:36:02 +00:00
nfs Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
nfsclient Deal with the possibility of negative available space from the file server 2003-05-19 22:35:00 +00:00
nfsserver Beat vnode locking in the NFS server code into submission. This change 2003-05-25 06:17:33 +00:00
opencrypto Gigacommit to improve device-driver source compatibility between 2003-03-03 12:15:54 +00:00
pc98 Clear up that COMPAT_43 may not do the same thing on every architecture 2003-05-15 02:10:30 +00:00
pccard 1. Allow drivers to query CIS strings from OLDCARD. 2003-04-23 23:39:21 +00:00
pci Only use a SIA/SYM media info block if no MII block is detected. 2003-05-15 16:53:29 +00:00
posix4 Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
powerpc sys/sys/limits.h: 2003-05-19 20:29:07 +00:00
rpc
security Rename MAC_MAX_POLICIES to MAC_MAX_SLOTS, since the variables and 2003-05-08 19:49:42 +00:00
sparc64 Fix two typos from the last commit 2003-05-26 16:59:00 +00:00
sys De-orbit bus_dmamem_alloc_size(). It's a hack and was never used anyways. 2003-05-26 04:00:52 +00:00
tools MFp4: 2003-03-28 06:43:50 +00:00
ufs Lock the vm object when performing vm_object_page_clean(). 2003-05-18 22:02:51 +00:00
vm If we seem to be out of VM, don't allow the pagedaemon to kill 2003-05-19 00:51:07 +00:00
Makefile Exclude sys/boot for amd64. There are still toolchain issues to deal 2003-05-08 06:35:39 +00:00