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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>
161 lines
3.3 KiB
C
161 lines
3.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_SPARC64_COMPAT_H
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#define _ASM_SPARC64_COMPAT_H
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/*
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* Architecture specific compatibility types
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*/
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#include <linux/types.h>
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#define compat_mode_t compat_mode_t
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typedef u16 compat_mode_t;
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#define __compat_uid_t __compat_uid_t
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typedef u16 __compat_uid_t;
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typedef u16 __compat_gid_t;
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#define compat_dev_t compat_dev_t
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typedef u16 compat_dev_t;
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#define compat_ipc_pid_t compat_ipc_pid_t
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typedef u16 compat_ipc_pid_t;
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#define compat_ipc64_perm compat_ipc64_perm
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#define COMPAT_RLIM_INFINITY 0x7fffffff
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#include <asm-generic/compat.h>
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#define COMPAT_UTS_MACHINE "sparc\0\0"
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typedef s16 compat_nlink_t;
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struct compat_stat {
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compat_dev_t st_dev;
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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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compat_off_t st_size;
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old_time32_t st_atime;
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compat_ulong_t st_atime_nsec;
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old_time32_t st_mtime;
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compat_ulong_t st_mtime_nsec;
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old_time32_t st_ctime;
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compat_ulong_t st_ctime_nsec;
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compat_off_t st_blksize;
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compat_off_t st_blocks;
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u32 __unused4[2];
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};
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struct compat_stat64 {
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unsigned long long st_dev;
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unsigned long long st_ino;
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unsigned int st_mode;
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unsigned int st_nlink;
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unsigned int st_uid;
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unsigned int st_gid;
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unsigned long long st_rdev;
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unsigned char __pad3[8];
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long long st_size;
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unsigned int st_blksize;
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unsigned char __pad4[8];
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unsigned int st_blocks;
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unsigned int st_atime;
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unsigned int st_atime_nsec;
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unsigned int st_mtime;
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unsigned int st_mtime_nsec;
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unsigned int st_ctime;
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unsigned int st_ctime_nsec;
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unsigned int __unused4;
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unsigned int __unused5;
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};
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#define __ARCH_COMPAT_FLOCK_PAD short __unused;
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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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unsigned short __pad1;
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compat_mode_t mode;
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unsigned short __pad2;
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unsigned short seq;
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unsigned long __unused1; /* yes they really are 64bit pads */
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unsigned long __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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unsigned int sem_otime_high;
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unsigned int sem_otime;
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unsigned int sem_ctime_high;
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unsigned int sem_ctime;
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u32 sem_nsems;
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u32 __unused1;
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u32 __unused2;
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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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unsigned int msg_stime_high;
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unsigned int msg_stime;
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unsigned int msg_rtime_high;
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unsigned int msg_rtime;
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unsigned int msg_ctime_high;
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unsigned int msg_ctime;
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unsigned int msg_cbytes;
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unsigned int msg_qnum;
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unsigned int msg_qbytes;
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compat_pid_t msg_lspid;
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compat_pid_t msg_lrpid;
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unsigned int __unused1;
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unsigned int __unused2;
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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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unsigned int shm_atime_high;
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unsigned int shm_atime;
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unsigned int shm_dtime_high;
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unsigned int shm_dtime;
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unsigned int shm_ctime_high;
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unsigned int shm_ctime;
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compat_size_t shm_segsz;
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compat_pid_t shm_cpid;
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compat_pid_t shm_lpid;
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unsigned int shm_nattch;
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unsigned int __unused1;
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unsigned int __unused2;
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};
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#ifdef CONFIG_COMPAT
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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);
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}
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static inline bool in_compat_syscall(void)
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{
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/* Vector 0x110 is LINUX_32BIT_SYSCALL_TRAP */
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return pt_regs_trap_type(current_pt_regs()) == 0x110;
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}
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#define in_compat_syscall in_compat_syscall
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#endif
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#endif /* _ASM_SPARC64_COMPAT_H */
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