linux/arch/x86/um/shared/sysdep
Eli Cooper a78ff11122 um: add extended processor state save/restore support
This patch extends save_fp_registers() and restore_fp_registers() to use
PTRACE_GETREGSET and PTRACE_SETREGSET with the XSTATE note type, adding
support for new processor state extensions between context switches.

When the new ptrace requests are unavailable, it falls back to the old
PTRACE_GETFPREGS and PTRACE_SETFPREGS methods, which have been renamed to
save_i387_registers() and restore_i387_registers().

Now these functions expect *fp_regs to have the space of an _xstate struct.
Thus, this also makes ptrace in UML responde to PTRACE_GETFPREGS/_SETFPREG
requests with a user_i387_struct (thus independent from HOST_FP_SIZE), and
by calling save_i387_registers() and restore_i387_registers() instead of
the extended save_fp_registers() and restore_fp_registers() functions.

Signed-off-by: Eli Cooper <elicooper@gmx.com>
2016-05-21 23:38:06 +02:00
..
archsetjmp_32.h
archsetjmp_64.h
archsetjmp.h
faultinfo_32.h um: Remove SKAS3/4 support 2015-04-13 21:00:53 +02:00
faultinfo_64.h um: Remove SKAS3/4 support 2015-04-13 21:00:53 +02:00
faultinfo.h
kernel-offsets.h um: Preinclude include/linux/kern_levels.h 2012-09-27 20:20:09 +02:00
mcontext.h
ptrace_32.h um/x86: merge (and trim) 32- and 64-bit variants of ptrace.h 2012-05-21 16:28:34 -04:00
ptrace_64.h um: add extended processor state save/restore support 2016-05-21 23:38:06 +02:00
ptrace_user.h um: unify ptrace_user.h 2011-11-02 14:15:27 +01:00
ptrace.h um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
stub_32.h
stub_64.h
stub.h um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
syscalls_32.h sanitize rt_sigaction() situation a bit 2013-02-03 15:09:18 -05:00
syscalls_64.h
syscalls.h take sys_fork/sys_vfork/sys_clone prototypes to linux/syscalls.h 2012-11-28 23:43:27 -05:00
tls.h um: Stop abusing __KERNEL__ 2015-05-31 22:05:32 +02:00