forked from Minki/linux
1bd46782d0
We don't want GCC optimising our memset_io(), memcpy_fromio() or memcpy_toio() variants, so we must not call one of the standard functions. Provide a separate name for our assembly memcpy() and memset() functions, and use that instead, thereby bypassing GCC's ability to optimise these operations. GCCs optimisation may introduce unaligned accesses which are invalid for device mappings. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
178 lines
4.2 KiB
C
178 lines
4.2 KiB
C
/*
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* linux/arch/arm/kernel/armksyms.c
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*
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* Copyright (C) 2000 Russell King
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/export.h>
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#include <linux/sched.h>
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#include <linux/string.h>
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#include <linux/cryptohash.h>
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#include <linux/delay.h>
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#include <linux/in6.h>
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#include <linux/syscalls.h>
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#include <linux/uaccess.h>
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#include <linux/io.h>
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#include <asm/checksum.h>
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#include <asm/ftrace.h>
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/*
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* libgcc functions - functions that are used internally by the
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* compiler... (prototypes are not correct though, but that
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* doesn't really matter since they're not versioned).
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*/
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extern void __ashldi3(void);
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extern void __ashrdi3(void);
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extern void __divsi3(void);
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extern void __lshrdi3(void);
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extern void __modsi3(void);
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extern void __muldi3(void);
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extern void __ucmpdi2(void);
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extern void __udivsi3(void);
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extern void __umodsi3(void);
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extern void __do_div64(void);
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extern void __bswapsi2(void);
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extern void __bswapdi2(void);
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extern void __aeabi_idiv(void);
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extern void __aeabi_idivmod(void);
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extern void __aeabi_lasr(void);
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extern void __aeabi_llsl(void);
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extern void __aeabi_llsr(void);
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extern void __aeabi_lmul(void);
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extern void __aeabi_uidiv(void);
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extern void __aeabi_uidivmod(void);
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extern void __aeabi_ulcmp(void);
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extern void fpundefinstr(void);
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void mmioset(void *, unsigned int, size_t);
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void mmiocpy(void *, const void *, size_t);
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/* platform dependent support */
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EXPORT_SYMBOL(arm_delay_ops);
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/* networking */
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EXPORT_SYMBOL(csum_partial);
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EXPORT_SYMBOL(csum_partial_copy_from_user);
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EXPORT_SYMBOL(csum_partial_copy_nocheck);
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EXPORT_SYMBOL(__csum_ipv6_magic);
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/* io */
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#ifndef __raw_readsb
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EXPORT_SYMBOL(__raw_readsb);
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#endif
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#ifndef __raw_readsw
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EXPORT_SYMBOL(__raw_readsw);
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#endif
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#ifndef __raw_readsl
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EXPORT_SYMBOL(__raw_readsl);
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#endif
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#ifndef __raw_writesb
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EXPORT_SYMBOL(__raw_writesb);
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#endif
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#ifndef __raw_writesw
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EXPORT_SYMBOL(__raw_writesw);
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#endif
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#ifndef __raw_writesl
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EXPORT_SYMBOL(__raw_writesl);
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#endif
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/* string / mem functions */
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EXPORT_SYMBOL(strchr);
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EXPORT_SYMBOL(strrchr);
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EXPORT_SYMBOL(memset);
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EXPORT_SYMBOL(memcpy);
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EXPORT_SYMBOL(memmove);
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EXPORT_SYMBOL(memchr);
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EXPORT_SYMBOL(__memzero);
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EXPORT_SYMBOL(mmioset);
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EXPORT_SYMBOL(mmiocpy);
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#ifdef CONFIG_MMU
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EXPORT_SYMBOL(copy_page);
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EXPORT_SYMBOL(__copy_from_user);
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EXPORT_SYMBOL(__copy_to_user);
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EXPORT_SYMBOL(__clear_user);
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EXPORT_SYMBOL(__get_user_1);
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EXPORT_SYMBOL(__get_user_2);
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EXPORT_SYMBOL(__get_user_4);
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EXPORT_SYMBOL(__get_user_8);
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#ifdef __ARMEB__
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EXPORT_SYMBOL(__get_user_64t_1);
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EXPORT_SYMBOL(__get_user_64t_2);
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EXPORT_SYMBOL(__get_user_64t_4);
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EXPORT_SYMBOL(__get_user_32t_8);
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#endif
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EXPORT_SYMBOL(__put_user_1);
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EXPORT_SYMBOL(__put_user_2);
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EXPORT_SYMBOL(__put_user_4);
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EXPORT_SYMBOL(__put_user_8);
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#endif
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/* gcc lib functions */
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EXPORT_SYMBOL(__ashldi3);
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EXPORT_SYMBOL(__ashrdi3);
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EXPORT_SYMBOL(__divsi3);
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EXPORT_SYMBOL(__lshrdi3);
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EXPORT_SYMBOL(__modsi3);
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EXPORT_SYMBOL(__muldi3);
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EXPORT_SYMBOL(__ucmpdi2);
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EXPORT_SYMBOL(__udivsi3);
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EXPORT_SYMBOL(__umodsi3);
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EXPORT_SYMBOL(__do_div64);
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EXPORT_SYMBOL(__bswapsi2);
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EXPORT_SYMBOL(__bswapdi2);
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#ifdef CONFIG_AEABI
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EXPORT_SYMBOL(__aeabi_idiv);
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EXPORT_SYMBOL(__aeabi_idivmod);
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EXPORT_SYMBOL(__aeabi_lasr);
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EXPORT_SYMBOL(__aeabi_llsl);
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EXPORT_SYMBOL(__aeabi_llsr);
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EXPORT_SYMBOL(__aeabi_lmul);
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EXPORT_SYMBOL(__aeabi_uidiv);
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EXPORT_SYMBOL(__aeabi_uidivmod);
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EXPORT_SYMBOL(__aeabi_ulcmp);
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#endif
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/* bitops */
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EXPORT_SYMBOL(_set_bit);
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EXPORT_SYMBOL(_test_and_set_bit);
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EXPORT_SYMBOL(_clear_bit);
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EXPORT_SYMBOL(_test_and_clear_bit);
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EXPORT_SYMBOL(_change_bit);
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EXPORT_SYMBOL(_test_and_change_bit);
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EXPORT_SYMBOL(_find_first_zero_bit_le);
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EXPORT_SYMBOL(_find_next_zero_bit_le);
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EXPORT_SYMBOL(_find_first_bit_le);
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EXPORT_SYMBOL(_find_next_bit_le);
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#ifdef __ARMEB__
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EXPORT_SYMBOL(_find_first_zero_bit_be);
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EXPORT_SYMBOL(_find_next_zero_bit_be);
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EXPORT_SYMBOL(_find_first_bit_be);
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EXPORT_SYMBOL(_find_next_bit_be);
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#endif
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#ifdef CONFIG_FUNCTION_TRACER
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#ifdef CONFIG_OLD_MCOUNT
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EXPORT_SYMBOL(mcount);
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#endif
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EXPORT_SYMBOL(__gnu_mcount_nc);
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#endif
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#ifdef CONFIG_ARM_PATCH_PHYS_VIRT
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EXPORT_SYMBOL(__pv_phys_pfn_offset);
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EXPORT_SYMBOL(__pv_offset);
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#endif
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