Florian Fainelli 0a98764567 um: Allow building and running on older hosts ... Commit a78ff11122 ("um: add extended processor state save/restore support") and b6024b21fe ("um: extend fpstate to _xstate to support YMM registers") forced the use of the x86 FP _xstate and PTRACE_GETREGSET/SETREGSET. On older hosts, we would neither be able to build UML nor run it anymore with these two commits applied because we don't have definitions for struct _xstate nor these two ptrace requests. We can determine at build time which fp context structure to check against, just like we can keep using the old i387 fp save/restore if PTRACE_GETRESET/SETREGSET are not defined. Fixes: a78ff11122 ("um: add extended processor state save/restore support") Fixes: b6024b21fe ("um: extend fpstate to _xstate to support YMM registers") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Richard Weinberger <richard@nod.at>		2017-07-05 23:31:28 +02:00
..
asm	x86/arch_prctl: Rename 'code' argument to 'option'	2017-03-20 16:10:32 +01:00
os-Linux	um: Allow building and running on older hosts	2017-07-05 23:31:28 +02:00
shared/sysdep	um: Include kbuild.h instead of duplicating its macros	2017-05-03 22:36:56 +02:00
vdso
bugs_32.c
bugs_64.c
checksum_32.S
delay.c
elfcore.c
fault.c
Kconfig
ldt.c
Makefile	Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-05-01 22:07:51 -07:00
mem_32.c
mem_64.c
ptrace_32.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
ptrace_64.c	um: Fix PTRACE_POKEUSER on x86_64	2017-05-03 22:35:31 +02:00
ptrace_user.c
setjmp_32.S	um: Avoid longjmp/setjmp symbol clashes with libpthread.a	2017-07-05 23:30:50 +02:00
setjmp_64.S	um: Avoid longjmp/setjmp symbol clashes with libpthread.a	2017-07-05 23:30:50 +02:00
signal.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
stub_32.S
stub_64.S
stub_segv.c
sys_call_table_32.c
sys_call_table_64.c
syscalls_32.c	x86/syscalls/32: Wire up arch_prctl on x86-32	2017-03-20 16:10:33 +01:00
syscalls_64.c	um/arch_prctl: Fix fallout from x86 arch_prctl() rework	2017-03-21 10:08:29 +01:00
sysrq_32.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>	2017-03-02 08:42:34 +01:00
sysrq_64.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>	2017-03-02 08:42:34 +01:00
tls_32.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
tls_64.c
user-offsets.c	um: Allow building and running on older hosts	2017-07-05 23:31:28 +02:00