freebsd-nq/sys/i386
Konstantin Belousov 206f09eb46 Do not qualify the mcontext_t *mcp argument for set_mcontext(9) as
const.  On x86, even after the machine context is supposedly read into
the struct ucontext, lazy FPU state save code might only mark the FPU
data as hardware-owned.  Later, set_fpcontext() needs to fetch the
state from hardware, modifying the *mcp.

The set_mcontext(9) is called from sigreturn(2) and setcontext(2)
implementations and old create_thread(2) interface, which throw the
*mcp out after the set_mcontext() call.

Reported by:	dim
Discussed with:	jhb
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2015-01-31 21:43:46 +00:00
..
acpica Correct a comment brought over from amd64. i386 doesn't use long 2014-08-12 18:22:57 +00:00
bios Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
conf Remove "New" label from NFSCL/NFSD now that they are the only NFS 2015-01-06 16:15:57 +00:00
i386 Do not qualify the mcontext_t *mcp argument for set_mcontext(9) as 2015-01-31 21:43:46 +00:00
ibcs2 Remove the no-at variants of the kern_xx() syscall helpers. E.g., we 2014-11-13 18:01:51 +00:00
include loader: implement multiboot support for Xen Dom0 2015-01-15 16:27:20 +00:00
isa Improve support for XSAVE with debuggers. 2014-11-21 20:53:17 +00:00
linux Regen after r276508, r276509. 2015-01-01 18:43:31 +00:00
pci Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
svr4 MFamd64: Move extern declaration of _ucodesel and _udatasel to 2014-11-02 21:40:32 +00:00
xbox After r261980, the local ptr variable in xbox_init() is no longer used, 2014-02-16 22:48:36 +00:00
xen Where appropriate, use the modern terms for the one true time base 2014-12-21 05:07:11 +00:00
Makefile