Skip to content
Snippets Groups Projects
Select Git revision
  • wip/smcv/library-cmp
  • master default
  • wip/smcv/longer-fallback-search
  • wip/smcv/config-fallback-search
  • revert-65a6e3e1
  • v0.20240916.0
  • v0.20240806.0
  • v0.20240520.0
  • v0.20230928.0
  • v0.20230802.0
  • v0.20221006.0
  • v0.20220623.0
  • v0.20211026.0
  • v0.20210906.0
  • v0.20210728.0
  • v0.20210114.0
  • v0.20210104.0
  • v0.20201120.0
  • v0.20201022.0
  • v0.20200921.0
  • v0.20200908.0
  • v0.20200708.0
  • v0.20200624.0
  • v0.20190926.0
  • v0.20190724.0
25 results

capsule-relocate.c

Blame
  • compat.h 7.19 KiB
    /*
     * Copyright (C) 2012 ARM Ltd.
     *
     * This program is free software; you can redistribute it and/or modify
     * it under the terms of the GNU General Public License version 2 as
     * published by the Free Software Foundation.
     *
     * This program is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     * GNU General Public License for more details.
     *
     * You should have received a copy of the GNU General Public License
     * along with this program.  If not, see <http://www.gnu.org/licenses/>.
     */
    #ifndef __ASM_COMPAT_H
    #define __ASM_COMPAT_H
    #ifdef __KERNEL__
    #ifdef CONFIG_COMPAT
    
    /*
     * Architecture specific compatibility types
     */
    #include <linux/types.h>
    #include <linux/sched.h>
    #include <linux/ptrace.h>
    
    #define COMPAT_USER_HZ		100
    #ifdef __AARCH64EB__
    #define COMPAT_UTS_MACHINE	"armv8b\0\0"
    #else
    #define COMPAT_UTS_MACHINE	"armv8l\0\0"
    #endif
    
    typedef u32		compat_size_t;
    typedef s32		compat_ssize_t;
    typedef s32		compat_time_t;
    typedef s32		compat_clock_t;
    typedef s32		compat_pid_t;
    typedef u16		__compat_uid_t;
    typedef u16		__compat_gid_t;
    typedef u16		__compat_uid16_t;
    typedef u16		__compat_gid16_t;
    typedef u32		__compat_uid32_t;
    typedef u32		__compat_gid32_t;
    typedef u16		compat_mode_t;
    typedef u32		compat_ino_t;
    typedef u32		compat_dev_t;
    typedef s32		compat_off_t;
    typedef s64		compat_loff_t;
    typedef s32		compat_nlink_t;
    typedef u16		compat_ipc_pid_t;
    typedef s32		compat_daddr_t;
    typedef u32		compat_caddr_t;
    typedef __kernel_fsid_t	compat_fsid_t;
    typedef s32		compat_key_t;
    typedef s32		compat_timer_t;
    
    typedef s16		compat_short_t;
    typedef s32		compat_int_t;
    typedef s32		compat_long_t;
    typedef s64		compat_s64;
    typedef u16		compat_ushort_t;
    typedef u32		compat_uint_t;
    typedef u32		compat_ulong_t;
    typedef u64		compat_u64;
    typedef u32		compat_uptr_t;
    
    struct compat_timespec {
    	compat_time_t	tv_sec;
    	s32		tv_nsec;
    };
    
    struct compat_timeval {
    	compat_time_t	tv_sec;
    	s32		tv_usec;
    };
    
    struct compat_stat {
    #ifdef __AARCH64EB__
    	short		st_dev;
    	short		__pad1;
    #else
    	compat_dev_t	st_dev;
    #endif
    	compat_ino_t	st_ino;
    	compat_mode_t	st_mode;
    	compat_ushort_t	st_nlink;
    	__compat_uid16_t	st_uid;
    	__compat_gid16_t	st_gid;
    #ifdef __AARCH64EB__
    	short		st_rdev;
    	short		__pad2;
    #else
    	compat_dev_t	st_rdev;
    #endif
    	compat_off_t	st_size;
    	compat_off_t	st_blksize;
    	compat_off_t	st_blocks;
    	compat_time_t	st_atime;
    	compat_ulong_t	st_atime_nsec;
    	compat_time_t	st_mtime;
    	compat_ulong_t	st_mtime_nsec;
    	compat_time_t	st_ctime;
    	compat_ulong_t	st_ctime_nsec;
    	compat_ulong_t	__unused4[2];
    };
    
    struct compat_flock {
    	short		l_type;
    	short		l_whence;
    	compat_off_t	l_start;
    	compat_off_t	l_len;
    	compat_pid_t	l_pid;
    };
    
    #define F_GETLK64	12	/*  using 'struct flock64' */
    #define F_SETLK64	13
    #define F_SETLKW64	14
    
    struct compat_flock64 {
    	short		l_type;
    	short		l_whence;
    	compat_loff_t	l_start;
    	compat_loff_t	l_len;
    	compat_pid_t	l_pid;
    };
    
    struct compat_statfs {
    	int		f_type;
    	int		f_bsize;
    	int		f_blocks;
    	int		f_bfree;
    	int		f_bavail;
    	int		f_files;
    	int		f_ffree;
    	compat_fsid_t	f_fsid;
    	int		f_namelen;	/* SunOS ignores this field. */
    	int		f_frsize;
    	int		f_flags;
    	int		f_spare[4];
    };
    
    #define COMPAT_RLIM_INFINITY		0xffffffff
    
    typedef u32		compat_old_sigset_t;
    
    #define _COMPAT_NSIG		64
    #define _COMPAT_NSIG_BPW	32
    
    typedef u32		compat_sigset_word;
    
    typedef union compat_sigval {
    	compat_int_t	sival_int;
    	compat_uptr_t	sival_ptr;
    } compat_sigval_t;
    
    typedef struct compat_siginfo {
    	int si_signo;
    	int si_errno;
    	int si_code;
    
    	union {
    		/* The padding is the same size as AArch64. */
    		int _pad[128/sizeof(int) - 3];
    
    		/* kill() */
    		struct {
    			compat_pid_t _pid;	/* sender's pid */
    			__compat_uid32_t _uid;	/* sender's uid */
    		} _kill;
    
    		/* POSIX.1b timers */
    		struct {
    			compat_timer_t _tid;	/* timer id */
    			int _overrun;		/* overrun count */
    			compat_sigval_t _sigval;	/* same as below */
    			int _sys_private;       /* not to be passed to user */
    		} _timer;
    
    		/* POSIX.1b signals */
    		struct {
    			compat_pid_t _pid;	/* sender's pid */
    			__compat_uid32_t _uid;	/* sender's uid */
    			compat_sigval_t _sigval;
    		} _rt;
    
    		/* SIGCHLD */
    		struct {
    			compat_pid_t _pid;	/* which child */
    			__compat_uid32_t _uid;	/* sender's uid */
    			int _status;		/* exit code */
    			compat_clock_t _utime;
    			compat_clock_t _stime;
    		} _sigchld;
    
    		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
    		struct {
    			compat_uptr_t _addr; /* faulting insn/memory ref. */
    			short _addr_lsb; /* LSB of the reported address */
    		} _sigfault;
    
    		/* SIGPOLL */
    		struct {
    			compat_long_t _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
    			int _fd;
    		} _sigpoll;
    
    		/* SIGSYS */
    		struct {
    			compat_uptr_t _call_addr; /* calling user insn */
    			int _syscall;	/* triggering system call number */
    			compat_uint_t _arch;	/* AUDIT_ARCH_* of syscall */
    		} _sigsys;
    	} _sifields;
    } compat_siginfo_t;
    
    #define COMPAT_OFF_T_MAX	0x7fffffff
    #define COMPAT_LOFF_T_MAX	0x7fffffffffffffffL
    
    /*
     * A pointer passed in from user mode. This should not
     * be used for syscall parameters, just declare them
     * as pointers because the syscall entry code will have
     * appropriately converted them already.
     */
    
    static inline void __user *compat_ptr(compat_uptr_t uptr)
    {
    	return (void __user *)(unsigned long)uptr;
    }
    
    static inline compat_uptr_t ptr_to_compat(void __user *uptr)
    {
    	return (u32)(unsigned long)uptr;
    }
    
    #define compat_user_stack_pointer() (user_stack_pointer(current_pt_regs()))
    
    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;
    	unsigned short mode;
    	unsigned short __pad1;
    	unsigned short seq;
    	unsigned short __pad2;
    	compat_ulong_t unused1;
    	compat_ulong_t unused2;
    };
    
    struct compat_semid64_ds {
    	struct compat_ipc64_perm sem_perm;
    	compat_time_t  sem_otime;
    	compat_ulong_t __unused1;
    	compat_time_t  sem_ctime;
    	compat_ulong_t __unused2;
    	compat_ulong_t sem_nsems;
    	compat_ulong_t __unused3;
    	compat_ulong_t __unused4;
    };
    
    struct compat_msqid64_ds {
    	struct compat_ipc64_perm msg_perm;
    	compat_time_t  msg_stime;
    	compat_ulong_t __unused1;
    	compat_time_t  msg_rtime;
    	compat_ulong_t __unused2;
    	compat_time_t  msg_ctime;
    	compat_ulong_t __unused3;
    	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_time_t  shm_atime;
    	compat_ulong_t __unused1;
    	compat_time_t  shm_dtime;
    	compat_ulong_t __unused2;
    	compat_time_t  shm_ctime;
    	compat_ulong_t __unused3;
    	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);
    }
    
    static inline int is_compat_thread(struct thread_info *thread)
    {
    	return test_ti_thread_flag(thread, TIF_32BIT);
    }
    
    #else /* !CONFIG_COMPAT */
    
    static inline int is_compat_thread(struct thread_info *thread)
    {
    	return 0;
    }
    
    #endif /* CONFIG_COMPAT */
    #endif /* __KERNEL__ */
    #endif /* __ASM_COMPAT_H */