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61 lines
1.5 KiB
61 lines
1.5 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* AArch64-specific system calls implementation |
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* |
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* Copyright (C) 2012 ARM Ltd. |
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* Author: Catalin Marinas <[email protected]> |
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*/ |
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#include <linux/compiler.h> |
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#include <linux/errno.h> |
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#include <linux/fs.h> |
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#include <linux/mm.h> |
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#include <linux/export.h> |
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#include <linux/sched.h> |
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#include <linux/slab.h> |
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#include <linux/syscalls.h> |
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#include <asm/cpufeature.h> |
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#include <asm/syscall.h> |
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SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len, |
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unsigned long, prot, unsigned long, flags, |
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unsigned long, fd, unsigned long, off) |
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{ |
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if (offset_in_page(off) != 0) |
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return -EINVAL; |
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return ksys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT); |
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} |
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SYSCALL_DEFINE1(arm64_personality, unsigned int, personality) |
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{ |
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if (personality(personality) == PER_LINUX32 && |
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!system_supports_32bit_el0()) |
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return -EINVAL; |
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return ksys_personality(personality); |
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} |
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asmlinkage long sys_ni_syscall(void); |
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asmlinkage long __arm64_sys_ni_syscall(const struct pt_regs *__unused) |
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{ |
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return sys_ni_syscall(); |
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} |
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/* |
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* Wrappers to pass the pt_regs argument. |
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*/ |
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#define __arm64_sys_personality __arm64_sys_arm64_personality |
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#undef __SYSCALL |
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#define __SYSCALL(nr, sym) asmlinkage long __arm64_##sym(const struct pt_regs *); |
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#include <asm/unistd.h> |
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#undef __SYSCALL |
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#define __SYSCALL(nr, sym) [nr] = __arm64_##sym, |
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const syscall_fn_t sys_call_table[__NR_syscalls] = { |
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[0 ... __NR_syscalls - 1] = __arm64_sys_ni_syscall, |
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#include <asm/unistd.h> |
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};
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