7992d60dc4
This patch adds support for system calls coming from 64-bit applications. It uses the asm-generic/unistd.h definitions with the canonical set of system calls. The private system calls are only used for 32-bit (compat) applications as 64-bit ones can set the TLS and flush the caches entirely from user space. The sys_call_table is just an array defined in a C file and it contains pointers to the syscall functions. The array is 4KB aligned to allow the use of the ADRP instruction (longer range ADR) in entry.S. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
/*
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* Copyright (C) 2012 ARM Ltd.
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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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* 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://www.gnu.org/licenses/>.
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*/
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#ifndef __ASM_STAT_H
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#define __ASM_STAT_H
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#include <asm-generic/stat.h>
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#if defined(__KERNEL__) && defined(CONFIG_COMPAT)
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#include <asm/compat.h>
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/*
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* struct stat64 is needed for compat tasks only. Its definition is different
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* from the generic struct stat64.
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*/
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struct stat64 {
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compat_u64 st_dev;
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unsigned char __pad0[4];
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#define STAT64_HAS_BROKEN_ST_INO 1
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compat_ulong_t __st_ino;
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compat_uint_t st_mode;
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compat_uint_t st_nlink;
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compat_ulong_t st_uid;
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compat_ulong_t st_gid;
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compat_u64 st_rdev;
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unsigned char __pad3[4];
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compat_s64 st_size;
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compat_ulong_t st_blksize;
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compat_u64 st_blocks; /* Number of 512-byte blocks allocated. */
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compat_ulong_t st_atime;
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compat_ulong_t st_atime_nsec;
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compat_ulong_t st_mtime;
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compat_ulong_t st_mtime_nsec;
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compat_ulong_t st_ctime;
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compat_ulong_t st_ctime_nsec;
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compat_u64 st_ino;
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};
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#endif
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#endif
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