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Diffstat (limited to 'arch/x86/include/asm/compat.h')
-rw-r--r--arch/x86/include/asm/compat.h137
1 files changed, 20 insertions, 117 deletions
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index be09c7eac89f..b1221da477b7 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -12,32 +12,35 @@
#include <asm/user32.h>
#include <asm/unistd.h>
-#include <asm-generic/compat.h>
-
-#define COMPAT_USER_HZ 100
-#define COMPAT_UTS_MACHINE "i686\0\0"
+#define compat_mode_t compat_mode_t
+typedef u16 compat_mode_t;
+#define __compat_uid_t __compat_uid_t
typedef u16 __compat_uid_t;
typedef u16 __compat_gid_t;
-typedef u32 __compat_uid32_t;
-typedef u32 __compat_gid32_t;
-typedef u16 compat_mode_t;
+
+#define compat_dev_t compat_dev_t
typedef u16 compat_dev_t;
+
+#define compat_ipc_pid_t compat_ipc_pid_t
+typedef u16 compat_ipc_pid_t;
+
+#define compat_statfs compat_statfs
+
+#include <asm-generic/compat.h>
+
+#define COMPAT_UTS_MACHINE "i686\0\0"
+
typedef u16 compat_nlink_t;
-typedef u16 compat_ipc_pid_t;
-typedef u32 compat_caddr_t;
-typedef __kernel_fsid_t compat_fsid_t;
struct compat_stat {
- compat_dev_t st_dev;
- u16 __pad1;
+ u32 st_dev;
compat_ino_t st_ino;
compat_mode_t st_mode;
compat_nlink_t st_nlink;
__compat_uid_t st_uid;
__compat_gid_t st_gid;
- compat_dev_t st_rdev;
- u16 __pad2;
+ u32 st_rdev;
u32 st_size;
u32 st_blksize;
u32 st_blocks;
@@ -51,29 +54,11 @@ struct compat_stat {
u32 __unused5;
};
-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
-
/*
- * IA32 uses 4 byte alignment for 64 bit quantities,
- * so we need to pack this structure.
+ * IA32 uses 4 byte alignment for 64 bit quantities, so we need to pack the
+ * compat flock64 structure.
*/
-struct compat_flock64 {
- short l_type;
- short l_whence;
- compat_loff_t l_start;
- compat_loff_t l_len;
- compat_pid_t l_pid;
-} __attribute__((packed));
+#define __ARCH_NEED_COMPAT_FLOCK64_PACKED
struct compat_statfs {
int f_type;
@@ -90,93 +75,11 @@ struct compat_statfs {
int f_spare[4];
};
-#define COMPAT_RLIM_INFINITY 0xffffffff
-
-typedef u32 compat_old_sigset_t; /* at least 32 bits */
-
-#define _COMPAT_NSIG 64
-#define _COMPAT_NSIG_BPW 32
-
-typedef u32 compat_sigset_word;
-
-#define COMPAT_OFF_T_MAX 0x7fffffff
-
-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_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;
-};
-
#ifdef CONFIG_X86_X32_ABI
#define COMPAT_USE_64BIT_TIME \
(!!(task_pt_regs(current)->orig_ax & __X32_SYSCALL_BIT))
#endif
-static inline void __user *arch_compat_alloc_user_space(long len)
-{
- compat_uptr_t sp = task_pt_regs(current)->sp;
-
- /*
- * -128 for the x32 ABI redzone. For IA32, it is not strictly
- * necessary, but not harmful.
- */
- sp -= 128;
-
- return (void __user *)round_down(sp - len, 16);
-}
-
static inline bool in_x32_syscall(void)
{
#ifdef CONFIG_X86_X32_ABI