Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 229 insertions, 0 deletions

diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h
new file mode 100644
index 000000000..78675f194
--- /dev/null
+++ b/arch/mips/include/asm/compat.h
@@ -0,0 +1,229 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_COMPAT_H
+#define _ASM_COMPAT_H
+/*
+ * Architecture specific compatibility types
+ */
+#include <linux/thread_info.h>
+#include <linux/types.h>
+#include <asm/page.h>
+#include <asm/ptrace.h>
+
+#define COMPAT_USER_HZ		100
+#define COMPAT_UTS_MACHINE	"mips\0\0\0"
+
+typedef u32		compat_size_t;
+typedef s32		compat_ssize_t;
+typedef s32		compat_clock_t;
+typedef s32		compat_suseconds_t;
+
+typedef s32		compat_pid_t;
+typedef s32		__compat_uid_t;
+typedef s32		__compat_gid_t;
+typedef __compat_uid_t	__compat_uid32_t;
+typedef __compat_gid_t	__compat_gid32_t;
+typedef u32		compat_mode_t;
+typedef u32		compat_ino_t;
+typedef u32		compat_dev_t;
+typedef s32		compat_off_t;
+typedef s64		compat_loff_t;
+typedef u32		compat_nlink_t;
+typedef s32		compat_ipc_pid_t;
+typedef s32		compat_daddr_t;
+typedef s32		compat_caddr_t;
+typedef struct {
+	s32	val[2];
+} compat_fsid_t;
+typedef s32		compat_timer_t;
+typedef s32		compat_key_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_stat {
+	compat_dev_t	st_dev;
+	s32		st_pad1[3];
+	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;
+	s32		st_pad2[2];
+	compat_off_t	st_size;
+	s32		st_pad3;
+	compat_time_t	st_atime;
+	s32		st_atime_nsec;
+	compat_time_t	st_mtime;
+	s32		st_mtime_nsec;
+	compat_time_t	st_ctime;
+	s32		st_ctime_nsec;
+	s32		st_blksize;
+	s32		st_blocks;
+	s32		st_pad4[14];
+};
+
+struct compat_flock {
+	short		l_type;
+	short		l_whence;
+	compat_off_t	l_start;
+	compat_off_t	l_len;
+	s32		l_sysid;
+	compat_pid_t	l_pid;
+	s32		pad[4];
+};
+
+#define F_GETLK64	33
+#define F_SETLK64	34
+#define F_SETLKW64	35
+
+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_frsize;
+	int		f_blocks;
+	int		f_bfree;
+	int		f_files;
+	int		f_ffree;
+	int		f_bavail;
+	compat_fsid_t	f_fsid;
+	int		f_namelen;
+	int		f_flags;
+	int		f_spare[5];
+};
+
+#define COMPAT_RLIM_INFINITY	0x7fffffffUL
+
+typedef u32		compat_old_sigset_t;	/* at least 32 bits */
+
+#define _COMPAT_NSIG		128		/* Don't ask !$@#% ...	*/
+#define _COMPAT_NSIG_BPW	32
+
+typedef u32		compat_sigset_word;
+
+#define COMPAT_OFF_T_MAX	0x7fffffff
+
+/*
+ * 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)
+{
+	/* cast to a __user pointer via "unsigned long" makes sparse happy */
+	return (void __user *)(unsigned long)(long)uptr;
+}
+
+static inline compat_uptr_t ptr_to_compat(void __user *uptr)
+{
+	return (u32)(unsigned long)uptr;
+}
+
+static inline void __user *arch_compat_alloc_user_space(long len)
+{
+	struct pt_regs *regs = (struct pt_regs *)
+		((unsigned long) current_thread_info() + THREAD_SIZE - 32) - 1;
+
+	return (void __user *) (regs->regs[29] - 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 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_ctime;
+	compat_ulong_t	sem_nsems;
+	compat_ulong_t	sem_otime_high;
+	compat_ulong_t	sem_ctime_high;
+};
+
+struct compat_msqid64_ds {
+	struct compat_ipc64_perm msg_perm;
+#ifndef CONFIG_CPU_LITTLE_ENDIAN
+	compat_ulong_t	msg_stime_high;
+#endif
+	compat_ulong_t	msg_stime;
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+	compat_ulong_t	msg_stime_high;
+#endif
+#ifndef CONFIG_CPU_LITTLE_ENDIAN
+	compat_ulong_t	msg_rtime_high;
+#endif
+	compat_ulong_t	msg_rtime;
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+	compat_ulong_t	msg_rtime_high;
+#endif
+#ifndef CONFIG_CPU_LITTLE_ENDIAN
+	compat_ulong_t	msg_ctime_high;
+#endif
+	compat_ulong_t	msg_ctime;
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+	compat_ulong_t	msg_ctime_high;
+#endif
+	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_dtime;
+	compat_ulong_t	shm_ctime;
+	compat_pid_t	shm_cpid;
+	compat_pid_t	shm_lpid;
+	compat_ulong_t	shm_nattch;
+	compat_ushort_t	shm_atime_high;
+	compat_ushort_t	shm_dtime_high;
+	compat_ushort_t	shm_ctime_high;
+	compat_ushort_t	__unused2;
+};
+
+/* MIPS has unusual order of fields in stack_t */
+typedef struct compat_sigaltstack {
+	compat_uptr_t			ss_sp;
+	compat_size_t			ss_size;
+	int				ss_flags;
+} compat_stack_t;
+#define compat_sigaltstack compat_sigaltstack
+
+static inline int is_compat_task(void)
+{
+	return test_thread_flag(TIF_32BIT_ADDR);
+}
+
+#endif /* _ASM_COMPAT_H */