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- /* SPDX-License-Identifier: GPL-2.0-only */
- #ifndef __ASM_COMPAT_H
- #define __ASM_COMPAT_H
- #define compat_mode_t compat_mode_t
- typedef u16 compat_mode_t;
- /*
- * Architecture specific compatibility types
- */
- #include <linux/types.h>
- #include <linux/sched.h>
- #include <linux/sched/task_stack.h>
- #include <asm-generic/compat.h>
- #define COMPAT_USER_HZ 100
- #define COMPAT_UTS_MACHINE "riscv\0\0"
- #define _COMPAT_NSIG _NSIG
- #define _COMPAT_NSIG_BPW 32
- typedef compat_uint_t __compat_uid_t;
- typedef compat_uint_t __compat_gid_t;
- typedef compat_uint_t __compat_uid32_t;
- typedef compat_uint_t __compat_gid32_t;
- typedef compat_uint_t compat_dev_t;
- typedef compat_int_t compat_ipc_pid_t;
- typedef u32 compat_sigset_word;
- typedef u32 compat_caddr_t;
- struct compat_stat {
- compat_ulong_t st_dev;
- compat_ulong_t st_ino;
- compat_uint_t st_mode;
- compat_uint_t st_nlink;
- compat_uint_t st_uid;
- compat_uint_t st_gid;
- compat_ulong_t st_rdev;
- compat_ulong_t __pad1;
- compat_long_t st_size;
- compat_int_t st_blksize;
- compat_int_t __pad2;
- compat_long_t st_blocks;
- compat_long_t st_atime;
- compat_ulong_t st_atime_nsec;
- compat_long_t st_mtime;
- compat_ulong_t st_mtime_nsec;
- compat_long_t st_ctime;
- compat_ulong_t st_ctime_nsec;
- compat_uint_t __unused4;
- compat_uint_t __unused5;
- };
- struct compat_flock {
- compat_short_t l_type;
- compat_short_t l_whence;
- compat_off_t l_start;
- compat_off_t l_len;
- compat_pid_t l_pid;
- /* No __ARCH_FLOCK_PAD in riscv */
- };
- #define F_GETLK64 12
- #define F_SETLK64 13
- #define F_SETLKW64 14
- struct compat_flock64 {
- compat_short_t l_type;
- compat_short_t l_whence;
- compat_loff_t l_start;
- compat_loff_t l_len;
- compat_pid_t l_pid;
- /* No __ARCH_FLOCK64_PAD in riscv */
- };
- struct compat_statfs {
- compat_uint_t f_type;
- compat_uint_t f_bsize;
- compat_uint_t f_blocks;
- compat_uint_t f_bfree;
- compat_uint_t f_bavail;
- compat_uint_t f_files;
- compat_uint_t f_ffree;
- __kernel_fsid_t f_fsid;
- compat_uint_t f_namelen;
- compat_uint_t f_frsize;
- compat_uint_t f_flags;
- compat_uint_t f_spare[4];
- };
- #define COMPAT_RLIM_INFINITY 0x7fffffff
- #define COMPAT_OFF_T_MAX COMPAT_RLIM_INFINITY
- #define compat_user_stack_pointer() (user_stack_pointer(task_pt_regs(current)))
- static inline void __user *arch_compat_alloc_user_space(long len)
- {
- return (void __user *)compat_user_stack_pointer() - len;
- }
- struct compat_ipc64_perm {
- compat_key_t key;
- __compat_uid32_t uid;
- __compat_gid32_t gid;
- __compat_uid32_t cuid;
- __compat_gid32_t cgid;
- compat_mode_t mode;
- unsigned char __pad1[4 - sizeof(compat_mode_t)];
- compat_ushort_t seq;
- compat_ushort_t __pad2;
- compat_ulong_t unused1;
- compat_ulong_t unused2;
- };
- struct compat_semid64_ds {
- struct compat_ipc64_perm sem_perm;
- compat_ulong_t sem_otime;
- compat_ulong_t sem_otime_high;
- compat_ulong_t sem_ctime;
- compat_ulong_t sem_ctime_high;
- compat_ulong_t sem_nsems;
- compat_ulong_t __unused3;
- compat_ulong_t __unused4;
- };
- struct compat_msqid64_ds {
- struct compat_ipc64_perm msg_perm;
- compat_ulong_t msg_stime;
- compat_ulong_t msg_stime_high;
- compat_ulong_t msg_rtime;
- compat_ulong_t msg_rtime_high;
- compat_ulong_t msg_ctime;
- compat_ulong_t msg_ctime_high;
- compat_ulong_t msg_cbytes;
- compat_ulong_t msg_qnum;
- compat_ulong_t msg_qbytes;
- compat_pid_t msg_lspid;
- compat_pid_t msg_lrpid;
- compat_ulong_t __unused4;
- compat_ulong_t __unused5;
- };
- struct compat_shmid64_ds {
- struct compat_ipc64_perm shm_perm;
- compat_size_t shm_segsz;
- compat_ulong_t shm_atime;
- compat_ulong_t shm_atime_high;
- compat_ulong_t shm_dtime;
- compat_ulong_t shm_dtime_high;
- compat_ulong_t shm_ctime;
- compat_ulong_t shm_ctime_high;
- compat_pid_t shm_cpid;
- compat_pid_t shm_lpid;
- compat_ulong_t shm_nattch;
- compat_ulong_t __unused4;
- compat_ulong_t __unused5;
- };
- static inline int is_compat_task(void)
- {
- return test_thread_flag(TIF_32BIT);
- }
- struct compat_user_regs_struct {
- compat_ulong_t pc;
- compat_ulong_t ra;
- compat_ulong_t sp;
- compat_ulong_t gp;
- compat_ulong_t tp;
- compat_ulong_t t0;
- compat_ulong_t t1;
- compat_ulong_t t2;
- compat_ulong_t s0;
- compat_ulong_t s1;
- compat_ulong_t a0;
- compat_ulong_t a1;
- compat_ulong_t a2;
- compat_ulong_t a3;
- compat_ulong_t a4;
- compat_ulong_t a5;
- compat_ulong_t a6;
- compat_ulong_t a7;
- compat_ulong_t s2;
- compat_ulong_t s3;
- compat_ulong_t s4;
- compat_ulong_t s5;
- compat_ulong_t s6;
- compat_ulong_t s7;
- compat_ulong_t s8;
- compat_ulong_t s9;
- compat_ulong_t s10;
- compat_ulong_t s11;
- compat_ulong_t t3;
- compat_ulong_t t4;
- compat_ulong_t t5;
- compat_ulong_t t6;
- };
- static inline void regs_to_cregs(struct compat_user_regs_struct *cregs,
- struct pt_regs *regs)
- {
- cregs->pc = (compat_ulong_t) regs->epc;
- cregs->ra = (compat_ulong_t) regs->ra;
- cregs->sp = (compat_ulong_t) regs->sp;
- cregs->gp = (compat_ulong_t) regs->gp;
- cregs->tp = (compat_ulong_t) regs->tp;
- cregs->t0 = (compat_ulong_t) regs->t0;
- cregs->t1 = (compat_ulong_t) regs->t1;
- cregs->t2 = (compat_ulong_t) regs->t2;
- cregs->s0 = (compat_ulong_t) regs->s0;
- cregs->s1 = (compat_ulong_t) regs->s1;
- cregs->a0 = (compat_ulong_t) regs->a0;
- cregs->a1 = (compat_ulong_t) regs->a1;
- cregs->a2 = (compat_ulong_t) regs->a2;
- cregs->a3 = (compat_ulong_t) regs->a3;
- cregs->a4 = (compat_ulong_t) regs->a4;
- cregs->a5 = (compat_ulong_t) regs->a5;
- cregs->a6 = (compat_ulong_t) regs->a6;
- cregs->a7 = (compat_ulong_t) regs->a7;
- cregs->s2 = (compat_ulong_t) regs->s2;
- cregs->s3 = (compat_ulong_t) regs->s3;
- cregs->s4 = (compat_ulong_t) regs->s4;
- cregs->s5 = (compat_ulong_t) regs->s5;
- cregs->s6 = (compat_ulong_t) regs->s6;
- cregs->s7 = (compat_ulong_t) regs->s7;
- cregs->s8 = (compat_ulong_t) regs->s8;
- cregs->s9 = (compat_ulong_t) regs->s9;
- cregs->s10 = (compat_ulong_t) regs->s10;
- cregs->s11 = (compat_ulong_t) regs->s11;
- cregs->t3 = (compat_ulong_t) regs->t3;
- cregs->t4 = (compat_ulong_t) regs->t4;
- cregs->t5 = (compat_ulong_t) regs->t5;
- cregs->t6 = (compat_ulong_t) regs->t6;
- };
- static inline void cregs_to_regs(struct compat_user_regs_struct *cregs,
- struct pt_regs *regs)
- {
- regs->epc = (unsigned long) cregs->pc;
- regs->ra = (unsigned long) cregs->ra;
- regs->sp = (unsigned long) cregs->sp;
- regs->gp = (unsigned long) cregs->gp;
- regs->tp = (unsigned long) cregs->tp;
- regs->t0 = (unsigned long) cregs->t0;
- regs->t1 = (unsigned long) cregs->t1;
- regs->t2 = (unsigned long) cregs->t2;
- regs->s0 = (unsigned long) cregs->s0;
- regs->s1 = (unsigned long) cregs->s1;
- regs->a0 = (unsigned long) cregs->a0;
- regs->a1 = (unsigned long) cregs->a1;
- regs->a2 = (unsigned long) cregs->a2;
- regs->a3 = (unsigned long) cregs->a3;
- regs->a4 = (unsigned long) cregs->a4;
- regs->a5 = (unsigned long) cregs->a5;
- regs->a6 = (unsigned long) cregs->a6;
- regs->a7 = (unsigned long) cregs->a7;
- regs->s2 = (unsigned long) cregs->s2;
- regs->s3 = (unsigned long) cregs->s3;
- regs->s4 = (unsigned long) cregs->s4;
- regs->s5 = (unsigned long) cregs->s5;
- regs->s6 = (unsigned long) cregs->s6;
- regs->s7 = (unsigned long) cregs->s7;
- regs->s8 = (unsigned long) cregs->s8;
- regs->s9 = (unsigned long) cregs->s9;
- regs->s10 = (unsigned long) cregs->s10;
- regs->s11 = (unsigned long) cregs->s11;
- regs->t3 = (unsigned long) cregs->t3;
- regs->t4 = (unsigned long) cregs->t4;
- regs->t5 = (unsigned long) cregs->t5;
- regs->t6 = (unsigned long) cregs->t6;
- };
- #endif /* __ASM_COMPAT_H */
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