1 /* SPDX-License-Identifier: GPL-2.0-only */
3  * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
6  *    -__clear_user( ) called multiple times during elf load was byte loop
10  *    -Hand crafted constant propagation for "constant" copy sizes
11  *    -stock kernel shrunk by 33K at -O3
14  *    -Added option to (UN)inline copy_(to|from)_user to reduce code sz
15  *    -kernel shrunk by 200K even at -O3 (gcc 4.2.1)
16  *    -Enabled when doing -Os
41  * Returns 0 on success, -EFAULT if not.
42  * @ret already contains 0 - given that errors will be less likely
44  * In case of error, fixup code will make it -EFAULT
50 	"	.section .fixup, \"ax\"\n"	\
52 	"3:	# return -EFAULT\n"		\
58 	"	.section __ex_table, \"a\"\n"	\
64 	: "r" (src), "ir" (-EFAULT))
71 	"	.section .fixup, \"ax\"\n"	\
73 	"3:	# return -EFAULT\n"		\
80 	"	.section __ex_table, \"a\"\n"	\
87 	: "r" (src), "ir" (-EFAULT))
105 	"	.section .fixup, \"ax\"\n"	\
110 	"	.section __ex_table, \"a\"\n"	\
116 	: "r" (src), "r" (dst), "ir" (-EFAULT))
123 	"	.section .fixup, \"ax\"\n"	\
128 	"	.section __ex_table, \"a\"\n"	\
135 	: "r" (src), "r" (dst), "ir" (-EFAULT))
162 		"	.section .fixup, \"ax\"		\n"  in raw_copy_from_user()
166 		"	.section __ex_table, \"a\"	\n"  in raw_copy_from_user()
185 	 * Hand-crafted constant propagation to reduce code sz of the  in raw_copy_from_user()
207 			"	.section .fixup, \"ax\"		\n"  in raw_copy_from_user()
211 			"	.section __ex_table, \"a\"	\n"  in raw_copy_from_user()
233 			"	.section .fixup, \"ax\"		\n"  in raw_copy_from_user()
237 			"	.section __ex_table, \"a\"	\n"  in raw_copy_from_user()
255 			"	.section .fixup, \"ax\"		\n"  in raw_copy_from_user()
259 			"	.section __ex_table, \"a\"	\n"  in raw_copy_from_user()
275 			"	.section .fixup, \"ax\"		\n"  in raw_copy_from_user()
279 			"	.section __ex_table, \"a\"	\n"  in raw_copy_from_user()
293 			"	.section .fixup, \"ax\"		\n"  in raw_copy_from_user()
297 			"	.section __ex_table, \"a\"	\n"  in raw_copy_from_user()
341 		"	.section .fixup, \"ax\"		\n"  in raw_copy_from_user()
345 		"	.section __ex_table, \"a\"	\n"  in raw_copy_from_user()
390 		"	.section .fixup, \"ax\"		\n"  in raw_copy_to_user()
394 		"	.section __ex_table, \"a\"	\n"  in raw_copy_to_user()
430 			"	.section .fixup, \"ax\"		\n"  in raw_copy_to_user()
434 			"	.section __ex_table, \"a\"	\n"  in raw_copy_to_user()
456 			"	.section .fixup, \"ax\"		\n"  in raw_copy_to_user()
460 			"	.section __ex_table, \"a\"	\n"  in raw_copy_to_user()
478 			"	.section .fixup, \"ax\"		\n"  in raw_copy_to_user()
482 			"	.section __ex_table, \"a\"	\n"  in raw_copy_to_user()
498 			"	.section .fixup, \"ax\"		\n"  in raw_copy_to_user()
502 			"	.section __ex_table, \"a\"	\n"  in raw_copy_to_user()
516 			"	.section .fixup, \"ax\"		\n"  in raw_copy_to_user()
520 			"	.section __ex_table, \"a\"	\n"  in raw_copy_to_user()
564 		"	.section .fixup, \"ax\"		\n"  in raw_copy_to_user()
568 		"	.section __ex_table, \"a\"	\n"  in raw_copy_to_user()
612 	"	.section .fixup, \"ax\"		\n"  in __clear_user()
616 	"	.section __ex_table, \"a\"	\n"  in __clear_user()
636 #include <asm-generic/uaccess.h>