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-rw-r--r--arch/um/include/os.h183
1 files changed, 183 insertions, 0 deletions
diff --git a/arch/um/include/os.h b/arch/um/include/os.h
new file mode 100644
index 00000000000..07340c8cf20
--- /dev/null
+++ b/arch/um/include/os.h
@@ -0,0 +1,183 @@
+/*
+ * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __OS_H__
+#define __OS_H__
+
+#include "asm/types.h"
+#include "../os/include/file.h"
+
+#define OS_TYPE_FILE 1
+#define OS_TYPE_DIR 2
+#define OS_TYPE_SYMLINK 3
+#define OS_TYPE_CHARDEV 4
+#define OS_TYPE_BLOCKDEV 5
+#define OS_TYPE_FIFO 6
+#define OS_TYPE_SOCK 7
+
+/* os_access() flags */
+#define OS_ACC_F_OK 0 /* Test for existence. */
+#define OS_ACC_X_OK 1 /* Test for execute permission. */
+#define OS_ACC_W_OK 2 /* Test for write permission. */
+#define OS_ACC_R_OK 4 /* Test for read permission. */
+#define OS_ACC_RW_OK (OS_ACC_W_OK | OS_ACC_R_OK) /* Test for RW permission */
+
+/*
+ * types taken from stat_file() in hostfs_user.c
+ * (if they are wrong here, they are wrong there...).
+ */
+struct uml_stat {
+ int ust_dev; /* device */
+ unsigned long long ust_ino; /* inode */
+ int ust_mode; /* protection */
+ int ust_nlink; /* number of hard links */
+ int ust_uid; /* user ID of owner */
+ int ust_gid; /* group ID of owner */
+ unsigned long long ust_size; /* total size, in bytes */
+ int ust_blksize; /* blocksize for filesystem I/O */
+ unsigned long long ust_blocks; /* number of blocks allocated */
+ unsigned long ust_atime; /* time of last access */
+ unsigned long ust_mtime; /* time of last modification */
+ unsigned long ust_ctime; /* time of last change */
+};
+
+struct openflags {
+ unsigned int r : 1;
+ unsigned int w : 1;
+ unsigned int s : 1; /* O_SYNC */
+ unsigned int c : 1; /* O_CREAT */
+ unsigned int t : 1; /* O_TRUNC */
+ unsigned int a : 1; /* O_APPEND */
+ unsigned int e : 1; /* O_EXCL */
+ unsigned int cl : 1; /* FD_CLOEXEC */
+};
+
+#define OPENFLAGS() ((struct openflags) { .r = 0, .w = 0, .s = 0, .c = 0, \
+ .t = 0, .a = 0, .e = 0, .cl = 0 })
+
+static inline struct openflags of_read(struct openflags flags)
+{
+ flags.r = 1;
+ return(flags);
+}
+
+static inline struct openflags of_write(struct openflags flags)
+{
+ flags.w = 1;
+ return(flags);
+}
+
+static inline struct openflags of_rdwr(struct openflags flags)
+{
+ return(of_read(of_write(flags)));
+}
+
+static inline struct openflags of_set_rw(struct openflags flags, int r, int w)
+{
+ flags.r = r;
+ flags.w = w;
+ return(flags);
+}
+
+static inline struct openflags of_sync(struct openflags flags)
+{
+ flags.s = 1;
+ return(flags);
+}
+
+static inline struct openflags of_create(struct openflags flags)
+{
+ flags.c = 1;
+ return(flags);
+}
+
+static inline struct openflags of_trunc(struct openflags flags)
+{
+ flags.t = 1;
+ return(flags);
+}
+
+static inline struct openflags of_append(struct openflags flags)
+{
+ flags.a = 1;
+ return(flags);
+}
+
+static inline struct openflags of_excl(struct openflags flags)
+{
+ flags.e = 1;
+ return(flags);
+}
+
+static inline struct openflags of_cloexec(struct openflags flags)
+{
+ flags.cl = 1;
+ return(flags);
+}
+
+extern int os_stat_file(const char *file_name, struct uml_stat *buf);
+extern int os_stat_fd(const int fd, struct uml_stat *buf);
+extern int os_access(const char *file, int mode);
+extern void os_print_error(int error, const char* str);
+extern int os_get_exec_close(int fd, int *close_on_exec);
+extern int os_set_exec_close(int fd, int close_on_exec);
+extern int os_ioctl_generic(int fd, unsigned int cmd, unsigned long arg);
+extern int os_window_size(int fd, int *rows, int *cols);
+extern int os_new_tty_pgrp(int fd, int pid);
+extern int os_get_ifname(int fd, char *namebuf);
+extern int os_set_slip(int fd);
+extern int os_set_owner(int fd, int pid);
+extern int os_sigio_async(int master, int slave);
+extern int os_mode_fd(int fd, int mode);
+
+extern int os_seek_file(int fd, __u64 offset);
+extern int os_open_file(char *file, struct openflags flags, int mode);
+extern int os_read_file(int fd, void *buf, int len);
+extern int os_write_file(int fd, const void *buf, int count);
+extern int os_file_size(char *file, long long *size_out);
+extern int os_file_modtime(char *file, unsigned long *modtime);
+extern int os_pipe(int *fd, int stream, int close_on_exec);
+extern int os_set_fd_async(int fd, int owner);
+extern int os_clear_fd_async(int fd);
+extern int os_set_fd_block(int fd, int blocking);
+extern int os_accept_connection(int fd);
+extern int os_create_unix_socket(char *file, int len, int close_on_exec);
+extern int os_shutdown_socket(int fd, int r, int w);
+extern void os_close_file(int fd);
+extern int os_rcv_fd(int fd, int *helper_pid_out);
+extern int create_unix_socket(char *file, int len, int close_on_exec);
+extern int os_connect_socket(char *name);
+extern int os_file_type(char *file);
+extern int os_file_mode(char *file, struct openflags *mode_out);
+extern int os_lock_file(int fd, int excl);
+
+extern unsigned long os_process_pc(int pid);
+extern int os_process_parent(int pid);
+extern void os_stop_process(int pid);
+extern void os_kill_process(int pid, int reap_child);
+extern void os_kill_ptraced_process(int pid, int reap_child);
+extern void os_usr1_process(int pid);
+extern int os_getpid(void);
+
+extern int os_map_memory(void *virt, int fd, unsigned long long off,
+ unsigned long len, int r, int w, int x);
+extern int os_protect_memory(void *addr, unsigned long len,
+ int r, int w, int x);
+extern int os_unmap_memory(void *addr, int len);
+extern void os_flush_stdout(void);
+extern unsigned long long os_usecs(void);
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only. This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */