X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=include%2Fos.h;h=e3645e01169b4a84ae7802ecf95a16298041499a;hb=c49e26243677aea080ba8350fb3e7b194b3c0ede;hp=d6d6e5794e479460f9881f59e90fc453bb519e8e;hpb=f763be224fa78893384416734419d8e052c1c5ef;p=karo-tx-uboot.git

diff --git a/include/os.h b/include/os.h
index d6d6e5794e..e3645e0116 100644
--- a/include/os.h
+++ b/include/os.h
@@ -83,6 +83,14 @@ int os_open(const char *pathname, int flags);
  */
 int os_close(int fd);
 
+/**
+ * Access to the OS unlink() system call
+ *
+ * \param pathname Path of file to delete
+ * \return 0 for success, other for error
+ */
+int os_unlink(const char *pathname);
+
 /**
  * Access to the OS exit() system call
  *
@@ -95,8 +103,12 @@ void os_exit(int exit_code) __attribute__((noreturn));
 
 /**
  * Put tty into raw mode to mimic serial console better
+ *
+ * @param fd		File descriptor of stdin (normally 0)
+ * @param allow_sigs	Allow Ctrl-C, Ctrl-Z to generate signals rather than
+ *			be handled by U-Boot
  */
-void os_tty_raw(int fd);
+void os_tty_raw(int fd, bool allow_sigs);
 
 /**
  * Acquires some memory from the underlying os.
@@ -205,9 +217,10 @@ const char *os_dirent_get_typename(enum os_dirent_t type);
  * Get the size of a file
  *
  * @param fname		Filename to check
- * @return size of file, or -1 if an error ocurred
+ * @param size		size of file is returned if no error
+ * @return 0 on success or -1 if an error ocurred
  */
-ssize_t os_get_filesize(const char *fname);
+int os_get_filesize(const char *fname, loff_t *size);
 
 /**
  * Write a character to the controlling OS terminal
@@ -245,4 +258,23 @@ int os_write_ram_buf(const char *fname);
  */
 int os_read_ram_buf(const char *fname);
 
+/**
+ * Jump to a new executable image
+ *
+ * This uses exec() to run a new executable image, after putting it in a
+ * temporary file. The same arguments and environment are passed to this
+ * new image, with the addition of:
+ *
+ *	-j <filename>	Specifies the filename the image was written to. The
+ *			calling image may want to delete this at some point.
+ *	-m <filename>	Specifies the file containing the sandbox memory
+ *			(ram_buf) from this image, so that the new image can
+ *			have access to this. It also means that the original
+ *			memory filename passed to U-Boot will be left intact.
+ *
+ * @param dest		Buffer containing executable image
+ * @param size		Size of buffer
+ */
+int os_jump_to_image(const void *dest, int size);
+
 #endif