84a0c977ab
There are 7 64bit architectures that support Linux COMPAT mode to run 32bit applications. A lot of definitions are duplicate: - COMPAT_USER_HZ - COMPAT_RLIM_INFINITY - COMPAT_OFF_T_MAX - __compat_uid_t, __compat_uid_t - compat_dev_t - compat_ipc_pid_t - struct compat_flock - struct compat_flock64 - struct compat_statfs - struct compat_ipc64_perm, compat_semid64_ds, compat_msqid64_ds, compat_shmid64_ds Cleanup duplicate definitions and merge them into asm-generic. Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Signed-off-by: Guo Ren <guoren@kernel.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Tested-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Helge Deller <deller@gmx.de> # parisc Link: https://lore.kernel.org/r/20220405071314.3225832-7-guoren@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
159 lines
3.4 KiB
C
159 lines
3.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_COMPAT_H
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#define _ASM_COMPAT_H
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/*
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* Architecture specific compatibility types
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*/
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#include <linux/thread_info.h>
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#include <linux/types.h>
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#include <asm/page.h>
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#include <asm/ptrace.h>
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#define __compat_uid_t __compat_uid_t
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typedef s32 __compat_uid_t;
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typedef s32 __compat_gid_t;
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typedef __compat_uid_t __compat_uid32_t;
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typedef __compat_gid_t __compat_gid32_t;
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#define __compat_uid32_t __compat_uid32_t
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#define compat_statfs compat_statfs
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#define compat_ipc64_perm compat_ipc64_perm
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#define _COMPAT_NSIG 128 /* Don't ask !$@#% ... */
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#define _COMPAT_NSIG_BPW 32
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typedef u32 compat_sigset_word;
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#define COMPAT_RLIM_INFINITY 0x7fffffffUL
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#include <asm-generic/compat.h>
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#define COMPAT_UTS_MACHINE "mips\0\0\0"
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typedef u32 compat_nlink_t;
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struct compat_stat {
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compat_dev_t st_dev;
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s32 st_pad1[3];
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compat_ino_t st_ino;
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compat_mode_t st_mode;
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compat_nlink_t st_nlink;
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__compat_uid_t st_uid;
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__compat_gid_t st_gid;
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compat_dev_t st_rdev;
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s32 st_pad2[2];
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compat_off_t st_size;
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s32 st_pad3;
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old_time32_t st_atime;
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s32 st_atime_nsec;
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old_time32_t st_mtime;
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s32 st_mtime_nsec;
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old_time32_t st_ctime;
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s32 st_ctime_nsec;
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s32 st_blksize;
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s32 st_blocks;
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s32 st_pad4[14];
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};
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#define __ARCH_COMPAT_FLOCK_EXTRA_SYSID s32 l_sysid;
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#define __ARCH_COMPAT_FLOCK_PAD s32 pad[4];
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struct compat_statfs {
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int f_type;
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int f_bsize;
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int f_frsize;
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int f_blocks;
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int f_bfree;
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int f_files;
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int f_ffree;
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int f_bavail;
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compat_fsid_t f_fsid;
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int f_namelen;
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int f_flags;
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int f_spare[5];
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};
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struct compat_ipc64_perm {
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compat_key_t key;
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__compat_uid32_t uid;
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__compat_gid32_t gid;
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__compat_uid32_t cuid;
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__compat_gid32_t cgid;
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compat_mode_t mode;
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unsigned short seq;
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unsigned short __pad2;
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compat_ulong_t __unused1;
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compat_ulong_t __unused2;
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};
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struct compat_semid64_ds {
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struct compat_ipc64_perm sem_perm;
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compat_ulong_t sem_otime;
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compat_ulong_t sem_ctime;
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compat_ulong_t sem_nsems;
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compat_ulong_t sem_otime_high;
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compat_ulong_t sem_ctime_high;
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};
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struct compat_msqid64_ds {
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struct compat_ipc64_perm msg_perm;
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#ifndef CONFIG_CPU_LITTLE_ENDIAN
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compat_ulong_t msg_stime_high;
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#endif
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compat_ulong_t msg_stime;
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#ifdef CONFIG_CPU_LITTLE_ENDIAN
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compat_ulong_t msg_stime_high;
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#endif
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#ifndef CONFIG_CPU_LITTLE_ENDIAN
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compat_ulong_t msg_rtime_high;
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#endif
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compat_ulong_t msg_rtime;
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#ifdef CONFIG_CPU_LITTLE_ENDIAN
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compat_ulong_t msg_rtime_high;
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#endif
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#ifndef CONFIG_CPU_LITTLE_ENDIAN
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compat_ulong_t msg_ctime_high;
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#endif
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compat_ulong_t msg_ctime;
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#ifdef CONFIG_CPU_LITTLE_ENDIAN
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compat_ulong_t msg_ctime_high;
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#endif
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compat_ulong_t msg_cbytes;
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compat_ulong_t msg_qnum;
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compat_ulong_t msg_qbytes;
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compat_pid_t msg_lspid;
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compat_pid_t msg_lrpid;
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compat_ulong_t __unused4;
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compat_ulong_t __unused5;
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};
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struct compat_shmid64_ds {
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struct compat_ipc64_perm shm_perm;
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compat_size_t shm_segsz;
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compat_ulong_t shm_atime;
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compat_ulong_t shm_dtime;
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compat_ulong_t shm_ctime;
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compat_pid_t shm_cpid;
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compat_pid_t shm_lpid;
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compat_ulong_t shm_nattch;
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compat_ushort_t shm_atime_high;
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compat_ushort_t shm_dtime_high;
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compat_ushort_t shm_ctime_high;
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compat_ushort_t __unused2;
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};
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/* MIPS has unusual order of fields in stack_t */
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typedef struct compat_sigaltstack {
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compat_uptr_t ss_sp;
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compat_size_t ss_size;
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int ss_flags;
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} compat_stack_t;
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#define compat_sigaltstack compat_sigaltstack
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static inline int is_compat_task(void)
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{
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return test_thread_flag(TIF_32BIT_ADDR);
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}
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#endif /* _ASM_COMPAT_H */
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