AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/arch/riscv/kernel/riscv_ksyms.c

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RISC-V: User-facing API This patch contains code that is in some way visible to the user: including via system calls, the VDSO, module loading and signal handling. It also contains some generic code that is ABI visible. Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com>
2017-07-11 08:07:09 +07:00
/*
* Copyright (C) 2017 Zihao Yu
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/export.h>
#include <linux/uaccess.h>
/*
* Assembly functions that may be used (directly or indirectly) by modules
*/
RISC-V: Export some expected symbols for modules These are the ones needed by current allmodconfig, so add them instead of everything other architectures are exporting -- the rest can be added on demand later if needed. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2017-11-30 08:55:16 +07:00
EXPORT_SYMBOL(__clear_user);
riscv: split the declaration of __copy_user We use a single __copy_user assembly function to copy memory both from and to userspace. While this works, it triggers sparse errors because we're implicitly casting between the kernel and user address spaces by calling __copy_user. This patch splits the C declaration into a pair of functions, __asm_copy_{to,from}_user, that have sane semantics WRT __user. This split make things fine from sparse's point of view. The assembly implementation keeps a single definition but add a double ENTRY() for it, one for __asm_copy_to_user and another one for __asm_copy_from_user. The result is a spare-safe implementation that pays no performance or code size penalty. Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-06-09 07:33:51 +07:00
EXPORT_SYMBOL(__asm_copy_to_user);
EXPORT_SYMBOL(__asm_copy_from_user);
RISC-V: Export some expected symbols for modules These are the ones needed by current allmodconfig, so add them instead of everything other architectures are exporting -- the rest can be added on demand later if needed. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2017-11-30 08:55:16 +07:00
EXPORT_SYMBOL(memset);
EXPORT_SYMBOL(memcpy);
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