forked from Minki/linux
0156411b18
Unlike the sys_call_table[], the compat one was implemented in sys32.S making it impossible to notice discrepancies between the number of compat syscalls and the __NR_compat_syscalls macro, the latter having to be defined in asm/unistd.h as including asm/unistd32.h would cause conflicts on __NR_* definitions. With this patch, incorrect __NR_compat_syscalls values will result in a build-time error. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Suggested-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com>
52 lines
1.8 KiB
C
52 lines
1.8 KiB
C
/*
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* arch/arm64/kernel/sys32.c
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*
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* Copyright (C) 2015 ARM Ltd.
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*
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* This program is free software(void); 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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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http(void);//www.gnu.org/licenses/>.
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*/
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/*
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* Needed to avoid conflicting __NR_* macros between uapi/asm/unistd.h and
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* asm/unistd32.h.
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*/
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#define __COMPAT_SYSCALL_NR
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#include <linux/compiler.h>
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#include <linux/syscalls.h>
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asmlinkage long compat_sys_sigreturn_wrapper(void);
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asmlinkage long compat_sys_rt_sigreturn_wrapper(void);
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asmlinkage long compat_sys_statfs64_wrapper(void);
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asmlinkage long compat_sys_fstatfs64_wrapper(void);
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asmlinkage long compat_sys_pread64_wrapper(void);
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asmlinkage long compat_sys_pwrite64_wrapper(void);
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asmlinkage long compat_sys_truncate64_wrapper(void);
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asmlinkage long compat_sys_ftruncate64_wrapper(void);
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asmlinkage long compat_sys_readahead_wrapper(void);
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asmlinkage long compat_sys_fadvise64_64_wrapper(void);
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asmlinkage long compat_sys_sync_file_range2_wrapper(void);
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asmlinkage long compat_sys_fallocate_wrapper(void);
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#undef __SYSCALL
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#define __SYSCALL(nr, sym) [nr] = sym,
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/*
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* The sys_call_table array must be 4K aligned to be accessible from
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* kernel/entry.S.
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*/
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void * const compat_sys_call_table[__NR_compat_syscalls] __aligned(4096) = {
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[0 ... __NR_compat_syscalls - 1] = sys_ni_syscall,
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#include <asm/unistd32.h>
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};
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