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freebsd-src/sys
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Bruce Evans 31e30d75d5 Fix fpset*() to not trap if there is a currently unmasked exception. 
Unmasked exceptions (which can be fixed up using fpset*() before they
trap) are very rare, especially on amd64 since SSE exceptions trap
synchronously, but I want to merge the faster amd64 implementations of
fpset*() back to i386 without introducing the bug on i386.

The i386 implementation has always avoided the trap automatically by
changing things using load/store of the FP environment, but this is
very slow.  Most changes only affect the control word, so they can
usually be done much more efficiently, and amd64 has always done this,
but loading the control word can trap.

This version use the fast method only in the usual case where it will
not trap.  This only costs a couple of integer instructions (including
one branch which I haven't optimized carefully yet) in the usual case,
but bloats the inlines a lot.  The inlines were already a bit too large
to handle both the FPU and SSE.
2008-01-11 17:11:32 +00:00
..
amd64 Fix fpset*() to not trap if there is a currently unmasked exception. 2008-01-11 17:11:32 +00:00
arm Add a missing \n. 2008-01-07 00:36:09 +00:00
boot "FreeBSD/Open Firmware/PowerPC ..." is confusing and non-standard. 2007-12-26 19:15:58 +00:00
bsm Merge OpenBSM 1.0 changes to src/sys/bsm: 2007-10-29 18:47:25 +00:00
cam style(9) 2008-01-02 01:45:31 +00:00
cddl vn_lock() is currently only used with the 'curthread' passed as argument. 2008-01-10 01:10:58 +00:00
compat vn_lock() is currently only used with the 'curthread' passed as argument. 2008-01-10 01:10:58 +00:00
conf Add a new file descriptor type for IPC shared memory objects and use it to 2008-01-08 21:58:16 +00:00
contrib vn_lock() is currently only used with the 'curthread' passed as argument. 2008-01-10 01:10:58 +00:00
crypto Commit the change from FAST_IPSEC to IPSEC. The FAST_IPSEC 2007-07-03 12:13:45 +00:00
ddb Refine textdump comments slightly. 2008-01-10 00:26:47 +00:00
dev The wakeup() line from the rev. 1.319 is wrong and reintroduces 2008-01-11 16:50:52 +00:00
fs vn_lock() is currently only used with the 'curthread' passed as argument. 2008-01-10 01:10:58 +00:00
gdb Add kdb_cpu_sync_icache(), intended to synchronize instruction 2007-06-09 21:55:17 +00:00
geom Various fixes: 2007-12-24 01:01:59 +00:00
gnu vn_lock() is currently only used with the 'curthread' passed as argument. 2008-01-10 01:10:58 +00:00
i4b Spelling fix for interupt -> interrupt 2007-10-12 06:03:46 +00:00
i386 vn_lock() is currently only used with the 'curthread' passed as argument. 2008-01-10 01:10:58 +00:00
ia64 Add COMPAT_FREEBSD7 and enable it in configs that have COMPAT_FREEBSD6. 2008-01-07 21:40:11 +00:00
isa Replace explicit calls to video methods with their respective variants 2007-12-29 23:26:59 +00:00
kern lockmgr() function will return successfully when trying to work under 2008-01-11 16:38:12 +00:00
libkern Do not use __XSCALE__ to detect if clz is available, use _ARM_ARCH_5 instead. 2007-10-13 12:05:36 +00:00
modules Don't overload tcp_usrreqs unless the kernel doesn't provide offload support. 2007-12-18 23:00:25 +00:00
net Update netisr comment for the SMPng world order: netisr is no longer 2007-12-31 20:58:50 +00:00
net80211 update channel flag defs to match _ieee80211.h so cpp doesn't complain 2007-12-13 01:23:40 +00:00
netatalk Annotate two possible bugs in a comment: (1) we allocate and explicitly 2007-11-20 18:50:54 +00:00
netatm Disconnect netatm from the build as it is not MPSAFE and relies on 2007-07-14 21:49:24 +00:00
netgraph Remove explicit locking of struct file. 2007-12-30 01:42:15 +00:00
netinet Don't duplicate the whole of arpresolve to arpresolve 2 for the sake 2007-12-31 23:48:06 +00:00
netinet6 un-__P() 2008-01-08 19:08:58 +00:00
netipsec Add sysctls to if_enc(4) to control whether the firewalls or 2007-11-28 22:33:53 +00:00
netipx Make tcpstates[] static, and make sure TCPSTATES is defined before 2007-07-30 11:06:42 +00:00
netnatm
netncp Refactor select to reduce contention and hide internal implementation 2007-12-16 06:21:20 +00:00
netsmb Refactor select to reduce contention and hide internal implementation 2007-12-16 06:21:20 +00:00
nfs
nfs4client vn_lock() is currently only used with the 'curthread' passed as argument. 2008-01-10 01:10:58 +00:00
nfsclient Pass curthread to various socket routines (socreate(), sobind(), and 2008-01-10 23:36:00 +00:00
nfsserver vn_lock() is currently only used with the 'curthread' passed as argument. 2008-01-10 01:10:58 +00:00
opencrypto Make ftruncate a 'struct file' operation rather than a vnode operation. 2008-01-07 20:05:19 +00:00
pc98 Add COMPAT_FREEBSD7 and enable it in configs that have COMPAT_FREEBSD6. 2008-01-07 21:40:11 +00:00
pccard
pci Add another RTL8168 revision 3 which is found on RTL8111-GR Gigabit 2007-12-08 00:14:09 +00:00
powerpc Add COMPAT_FREEBSD7 and enable it in configs that have COMPAT_FREEBSD6. 2008-01-07 21:40:11 +00:00
rpc Remove the now-unused NET_{LOCK,UNLOCK,ASSERT}_GIANT() macros, which 2007-08-06 14:26:03 +00:00
security vn_lock() is currently only used with the 'curthread' passed as argument. 2008-01-10 01:10:58 +00:00
sparc64 Add COMPAT_FREEBSD7 and enable it in configs that have COMPAT_FREEBSD6. 2008-01-07 21:40:11 +00:00
sun4v Add an access type parameter to pmap_enter(). It will be used to implement 2008-01-03 07:34:34 +00:00
sys Don't zero td_runtime when billing thread CPU usage to the process; 2008-01-10 22:11:20 +00:00
tools
ufs vn_lock() is currently only used with the 'curthread' passed as argument. 2008-01-10 01:10:58 +00:00
vm When one tries to allocate memory with the M_WAITOK flag and we are short in 2008-01-10 08:36:38 +00:00
Makefile Complete repo-copy and move of Coda from src/sys/coda to src/sys/fs/coda 2007-07-12 21:04:58 +00:00