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1a33b18b3b
Parts of linux/compat.h are under an #ifdef, but we end up using more of those over time, moving things around bit by bit. To get it over with once and for all, make all of this file uncondititonal now so it can be accessed everywhere. There are only a few types left that are in asm/compat.h but not yet in the asm-generic version, so add those in the process. This requires providing a few more types in asm-generic/compat.h that were not already there. The only tricky one is compat_sigset_t, which needs a little help on 32-bit architectures and for x86. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
211 lines
4.2 KiB
C
211 lines
4.2 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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#include <asm-generic/compat.h>
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#define COMPAT_USER_HZ 100
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#define COMPAT_UTS_MACHINE "sparc\0\0"
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typedef u16 __compat_uid_t;
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typedef u16 __compat_gid_t;
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typedef u16 compat_dev_t;
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typedef s16 compat_nlink_t;
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typedef u16 compat_ipc_pid_t;
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typedef __kernel_fsid_t compat_fsid_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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struct compat_flock {
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short l_type;
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short l_whence;
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compat_off_t l_start;
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compat_off_t l_len;
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compat_pid_t l_pid;
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short __unused;
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};
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#define F_GETLK64 12
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#define F_SETLK64 13
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#define F_SETLKW64 14
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struct compat_flock64 {
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short l_type;
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short l_whence;
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compat_loff_t l_start;
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compat_loff_t l_len;
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compat_pid_t l_pid;
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short __unused;
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};
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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_blocks;
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int f_bfree;
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int f_bavail;
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int f_files;
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int f_ffree;
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compat_fsid_t f_fsid;
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int f_namelen; /* SunOS ignores this field. */
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int f_frsize;
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int f_flags;
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int f_spare[4];
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};
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#define COMPAT_RLIM_INFINITY 0x7fffffff
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#define COMPAT_OFF_T_MAX 0x7fffffff
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#ifdef CONFIG_COMPAT
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static inline void __user *arch_compat_alloc_user_space(long len)
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{
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struct pt_regs *regs = current_thread_info()->kregs;
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unsigned long usp = regs->u_regs[UREG_I6];
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if (test_thread_64bit_stack(usp))
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usp += STACK_BIAS;
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if (test_thread_flag(TIF_32BIT))
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usp &= 0xffffffffUL;
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usp -= len;
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usp &= ~0x7UL;
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return (void __user *) usp;
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}
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#endif
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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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