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kernel-49/arch/sparc/lib/GENcopy_from_user.S
Andrey Zolotarev e72e9355e3 start the android-4.9 tree
git: https://android.googlesource.com/kernel/common
branch: android-4.9
commit: 03fcc2fe71308c2d164b4e6cbfc738c63e670444
2018-11-15 21:36:32 +03:00

31 lines
571 B
ArmAsm

/* GENcopy_from_user.S: Generic sparc64 copy from userspace.
*
* Copyright (C) 2007 David S. Miller (davem@davemloft.net)
*/
#define EX_LD(x,y) \
98: x; \
.section __ex_table,"a";\
.align 4; \
.word 98b, y; \
.text; \
.align 4;
#ifndef ASI_AIUS
#define ASI_AIUS 0x11
#endif
#define FUNC_NAME GENcopy_from_user
#define LOAD(type,addr,dest) type##a [addr] ASI_AIUS, dest
#define EX_RETVAL(x) 0
#ifdef __KERNEL__
#define PREAMBLE \
rd %asi, %g1; \
cmp %g1, ASI_AIUS; \
bne,pn %icc, ___copy_in_user; \
nop
#endif
#include "GENmemcpy.S"