acf8870a62
The new struct __kernel_timespec is similar to current
internal kernel struct timespec64 on 64 bit architecture.
The compat structure however is similar to below on little
endian systems (padding and tv_nsec are switched for big
endian systems):
typedef s32 compat_long_t;
typedef s64 compat_kernel_time64_t;
struct compat_kernel_timespec {
compat_kernel_time64_t tv_sec;
compat_long_t tv_nsec;
compat_long_t padding;
};
This allows for both the native and compat representations to
be the same and syscalls using this type as part of their ABI
can have a single entry point to both.
Note that the compat define is not included anywhere in the
kernel explicitly to avoid confusion.
These types will be used by the new syscalls that will be
introduced in the consequent patches.
Most of the new syscalls are just an update to the existing
native ones with this new type. Hence, put this new type under
an ifdef so that the architectures can define CONFIG_64BIT_TIME
when they are ready to handle this switch.
Cc: linux-arch@vger.kernel.org
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
99 lines
2.3 KiB
C
99 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef __ASM_GENERIC_POSIX_TYPES_H
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#define __ASM_GENERIC_POSIX_TYPES_H
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#include <asm/bitsperlong.h>
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/*
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* This file is generally used by user-level software, so you need to
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* be a little careful about namespace pollution etc.
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*
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* First the types that are often defined in different ways across
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* architectures, so that you can override them.
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*/
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#ifndef __kernel_long_t
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typedef long __kernel_long_t;
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typedef unsigned long __kernel_ulong_t;
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#endif
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#ifndef __kernel_ino_t
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typedef __kernel_ulong_t __kernel_ino_t;
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#endif
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#ifndef __kernel_mode_t
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typedef unsigned int __kernel_mode_t;
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#endif
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#ifndef __kernel_pid_t
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typedef int __kernel_pid_t;
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#endif
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#ifndef __kernel_ipc_pid_t
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typedef int __kernel_ipc_pid_t;
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#endif
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#ifndef __kernel_uid_t
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typedef unsigned int __kernel_uid_t;
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typedef unsigned int __kernel_gid_t;
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#endif
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#ifndef __kernel_suseconds_t
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typedef __kernel_long_t __kernel_suseconds_t;
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#endif
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#ifndef __kernel_daddr_t
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typedef int __kernel_daddr_t;
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#endif
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#ifndef __kernel_uid32_t
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typedef unsigned int __kernel_uid32_t;
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typedef unsigned int __kernel_gid32_t;
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#endif
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#ifndef __kernel_old_uid_t
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typedef __kernel_uid_t __kernel_old_uid_t;
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typedef __kernel_gid_t __kernel_old_gid_t;
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#endif
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#ifndef __kernel_old_dev_t
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typedef unsigned int __kernel_old_dev_t;
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#endif
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/*
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* Most 32 bit architectures use "unsigned int" size_t,
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* and all 64 bit architectures use "unsigned long" size_t.
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*/
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#ifndef __kernel_size_t
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#if __BITS_PER_LONG != 64
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typedef unsigned int __kernel_size_t;
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typedef int __kernel_ssize_t;
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typedef int __kernel_ptrdiff_t;
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#else
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typedef __kernel_ulong_t __kernel_size_t;
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typedef __kernel_long_t __kernel_ssize_t;
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typedef __kernel_long_t __kernel_ptrdiff_t;
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#endif
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#endif
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#ifndef __kernel_fsid_t
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typedef struct {
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int val[2];
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} __kernel_fsid_t;
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#endif
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/*
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* anything below here should be completely generic
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*/
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typedef __kernel_long_t __kernel_off_t;
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typedef long long __kernel_loff_t;
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typedef __kernel_long_t __kernel_time_t;
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typedef long long __kernel_time64_t;
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typedef __kernel_long_t __kernel_clock_t;
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typedef int __kernel_timer_t;
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typedef int __kernel_clockid_t;
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typedef char * __kernel_caddr_t;
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typedef unsigned short __kernel_uid16_t;
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typedef unsigned short __kernel_gid16_t;
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#endif /* __ASM_GENERIC_POSIX_TYPES_H */
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