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A speciality of the RTEMS build system was the make preinstall step. It
copied header files from arbitrary locations into the build tree. The
header files were included via the -Bsome/build/tree/path GCC command
line option.
This has at least seven problems:
* The make preinstall step itself needs time and disk space.
* Errors in header files show up in the build tree copy. This makes it
hard for editors to open the right file to fix the error.
* There is no clear relationship between source and build tree header
files. This makes an audit of the build process difficult.
* The visibility of all header files in the build tree makes it
difficult to enforce API barriers. For example it is discouraged to
use BSP-specifics in the cpukit.
* An introduction of a new build system is difficult.
* Include paths specified by the -B option are system headers. This
may suppress warnings.
* The parallel build had sporadic failures on some hosts.
This patch removes the make preinstall step. All installed header
files are moved to dedicated include directories in the source tree.
Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc,
etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g.
erc32, imx, qoriq, etc.
The new cpukit include directories are:
* cpukit/include
* cpukit/score/cpu/@RTEMS_CPU@/include
* cpukit/libnetworking
The new BSP include directories are:
* bsps/include
* bsps/@RTEMS_CPU@/include
* bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include
There are build tree include directories for generated files.
The include directory order favours the most general header file, e.g.
it is not possible to override general header files via the include path
order.
The "bootstrap -p" option was removed. The new "bootstrap -H" option
should be used to regenerate the "headers.am" files.
Update #3254.
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Prepare for header file move to common include directory.
Update #3254.
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Added a mmap file handler to struct _rtems_filesystem_file_handlers_r.
Updated each file handler object to support the default mmap handler.
Updated mmap() to call the mmap handler for MAP_SHARED.
Added a mmap file handler for shm
Added support for MAP_ANON in mmap().
Updates #2859
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Use the fstat handler instead.
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The readv() and writev() support was implemented in terms of multiple
calls to the read and write handlers. This imposes a problem on device
files which use an IO vector as single request entity. For example a
low-level network device (e.g. BPF(4)) may use an IO vector to create
one frame from multiple protocol layers each with its own IO vector
entry.
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The output of the modules.html is much improved. Most
filesystem and POSIX API related groups are properly nested.
Some formatting issues were addressed as were multiple
inconsistencies.
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http://www.google-melange.com/gci/task/view/google/gci2012/8006219
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The scope of the file system operations is the file system instance.
The scope of the file system node handlers is the file location. The
benefit of moving the operations to the mount table entry is a size
reduction of the file location (rtems_filesystem_location_info_t). The
code size is slightly increased due to additional load instructions.
Restructure rtems_filesystem_mount_table_entry_t to improve cache
efficiency.
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The device IO file system support in IMFS, devFS, and RFS uses now a
shared implementation.
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Script does what is expected and tries to do it as
smartly as possible.
+ remove occurrences of two blank comment lines
next to each other after Id string line removed.
+ remove entire comment blocks which only exited to
contain CVS Ids
+ If the processing left a blank line at the top of
a file, it was removed.
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According to POSIX the lseek() function shall not, by itself, extend the
size of a file.
Remove the size field of rtems_libio_t. A file has only one size but
may have multiple open file descriptors. Thus a file size field in the
file descriptor may lead to inconsistencies.
New default handlers rtems_filesystem_default_lseek_file() and
rtems_filesystem_default_lseek_directory().
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o Removed RTEMS_LIBIO_PERMS_SEARCH.
o Renamed RTEMS_LIBIO_PERMS_READ in RTEMS_FS_PERMS_READ.
o Renamed RTEMS_LIBIO_PERMS_WRITE in RTEMS_FS_PERMS_WRITE.
o Renamed RTEMS_LIBIO_PERMS_EXEC in RTEMS_FS_PERMS_EXEC.
o Renamed RTEMS_LIBIO_FOLLOW_HARD_LINK in RTEMS_FS_FOLLOW_HARD_LINK.
o Renamed RTEMS_LIBIO_FOLLOW_SYM_LINK in RTEMS_FS_FOLLOW_SYM_LINK.
o Renamed RTEMS_LIBIO_MAKE in RTEMS_FS_MAKE.
o Renamed RTEMS_LIBIO_EXCLUSIVE in RTEMS_FS_EXCLUSIVE.
o Renamed RTEMS_LIBIO_ACCEPT_RESIDUAL_DELIMITERS in
RTEMS_FS_ACCEPT_RESIDUAL_DELIMITERS.
o Renamed RTEMS_LIBIO_REJECT_TERMINAL_DOT in
RTEMS_FS_REJECT_TERMINAL_DOT.
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New defaults rtems_filesystem_default_fsync_or_fdatasync() and
rtems_filesystem_default_fsync_or_fdatasync_success() for fsync_h and
fdatasync_h. The rtems_filesystem_default_fsync_or_fdatasync() sets now
errno to EINVAL according to POSIX.
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o A new data structure rtems_filesystem_global_location_t was
introduced to be used for
o the mount point location in the mount table entry,
o the file system root location in the mount table entry,
o the root directory location in the user environment, and
o the current directory location in the user environment.
During the path evaluation global start locations are obtained to
ensure that the current file system instance will be not unmounted in
the meantime.
o The user environment uses now reference counting and is protected
from concurrent access.
o The path evaluation process was completely rewritten and simplified.
The IMFS, RFS, NFS, and DOSFS use now a generic path evaluation
method. Recursive calls in the path evaluation have been replaced
with iteration to avoid stack overflows. Only the evaluation of
symbolic links is recursive. No dynamic memory allocations and
intermediate buffers are used in the high level path evaluation. No
global locks are held during the file system instance specific path
evaluation process.
o Recursive symbolic link evaluation is now limited by
RTEMS_FILESYSTEM_SYMLOOP_MAX. Applications can retrieve this value
via sysconf().
o The device file system (devFS) uses now no global variables and
allocation from the workspace. Node names are allocated from the
heap.
o The upper layer lseek() performs now some parameter checks.
o The upper layer ftruncate() performs now some parameter checks.
o unmask() is now restricted to the RWX flags and protected from
concurrent access.
o The fchmod_h and rmnod_h file system node handlers are now a file
system operation.
o The unlink_h operation has been removed. All nodes are now destroyed
with the rmnod_h operation.
o New lock_h, unlock_h, clonenod_h, and are_nodes_equal_h file system
operations.
o The path evaluation and file system operations are now protected by
per file system instance lock and unlock operations.
o Fix and test file descriptor duplicate in fcntl().
o New test fstests/fsnofs01.
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There existed no calling function for this handler.
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* libfs/src/devfs/devfs_mknod.c: Remove const cast.
* libfs/src/imfs/ioman.c: Remove const cast.
* libfs/src/devfs/devfs.h: Make device_name a const char*.
* sapi/include/rtems/io.h: Make device_name a const char*.
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PR 1692/filesystem
* libcsupport/include/rtems/libio.h, libfs/src/devfs/devfs_eval.c,
libfs/src/imfs/imfs_eval.c: Fix implementation and use of
rtems_libio_is_valid_perms().
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PR 1627/testing
* libfs/src/devfs/devstat.c:
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* libcsupport/include/rtems/libio.h: Removed file_info and handlers
fields in rtems_libio_t.
* libcsupport/src/close.c, libcsupport/src/fcntl.c,
libcsupport/src/fdatasync.c, libcsupport/src/fstat.c,
libcsupport/src/fsync.c, libcsupport/src/ftruncate.c,
libcsupport/src/getdents.c, libcsupport/src/ioctl.c,
libcsupport/src/libio_sockets.c, libcsupport/src/lseek.c,
libcsupport/src/open.c, libcsupport/src/read.c,
libcsupport/src/readv.c, libcsupport/src/write.c,
libcsupport/src/writev.c, libfs/src/devfs/devclose.c,
libfs/src/devfs/devioctl.c, libfs/src/devfs/devopen.c,
libfs/src/devfs/devread.c, libfs/src/devfs/devwrite.c
libfs/src/dosfs/msdos_dir.c libfs/src/dosfs/msdos_file.c
libfs/src/imfs/deviceio.c libfs/src/imfs/imfs_directory.c
libfs/src/imfs/imfs_fifo.c libfs/src/imfs/memfile.c
libfs/src/nfsclient/src/nfs.c libfs/src/rfs/rtems-rfs-rtems-file.c
libfs/src/rfs/rtems-rfs-rtems.h libnetworking/lib/ftpfs.c: Reflect
changes above.
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* libfs/src/devfs/devfs.h, libfs/src/devfs/devfs_node_type.c: Fixed
devFS_node_type() prototype.
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* libcsupport/include/rtems/libio.h, libfs/Makefile.am,
libfs/src/defaults/default_chown.c,
libfs/src/defaults/default_evalpath.c,
libfs/src/defaults/default_freenode.c,
libfs/src/defaults/default_fsmount.c,
libfs/src/defaults/default_link.c,
libfs/src/defaults/default_mount.c,
libfs/src/defaults/default_rename.c,
libfs/src/defaults/default_statvfs.c,
libfs/src/defaults/default_symlink.c,
libfs/src/defaults/default_unlink.c,
libfs/src/defaults/default_utime.c, libfs/src/devfs/devfs_init.c,
libfs/src/dosfs/msdos_init.c, libfs/src/imfs/imfs_init.c,
libfs/src/nfsclient/src/nfs.c, libfs/src/rfs/rtems-rfs-rtems.c,
wrapup/Makefile.am: Fixed typo in default names. Added default
methods into filesystem tables.
* libfs/src/defaults/default_close.c,
libfs/src/defaults/default_evaluate_link.c,
libfs/src/defaults/default_fpathconf.c,
libfs/src/defaults/default_fsunmount.c,
libfs/src/defaults/default_open.c,
libfs/src/defaults/default_unmount.c: New files.
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* libfs/src/devfs/devfs.h, libfs/src/rfs/rtems-rfs-block-pos.h,
libfs/src/rfs/rtems-rfs-block.h, libfs/src/rfs/rtems-rfs-dir.h,
libfs/src/rfs/rtems-rfs-group.h, libfs/src/rfs/rtems-rfs-inode.h:
Fix broken doxygen commands.
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* libfs/src/devfs/devclose.c, libfs/src/devfs/devopen.c,
libfs/src/imfs/deviceerrno.c, libfs/src/imfs/deviceio.c,
libfs/src/rfs/rtems-rfs-rtems-dev.c: Changed rtems_deviceio_errno() to
cope with a status code of RTEMS_SUCCESSFUL. Removed dependency on
association framework.
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* libcsupport/Makefile.am: Add mount-mgr.c.
* libcsupport/src/mount-mgr.c: New.
* include/rtems/fs.h: Added rtems_filesystem_location_mount.
* libcsupport/include/rtems/libio.h, libcsupport/src/mount.c: New
mount interface. It is similar to Linux.
* libcsupport/include/rtems/libio_.h: Remove the
init_fs_mount_table call.
* libcsupport/src/base_fs.c: Remove init_fs_mount_table_call. Use
the new mount call. Remove setting the root node in the global
pathloc. Mount does this now.
* libcsupport/src/privateenv.c: Remove the hack to set the root
mount table entry in the environment.
* libcsupport/src/unmount.cL Free the target string.
* libblock/src/bdpart-mount.c: New mount API.
* libfs/src/devfs/devfs.h, libfs/src/devfs/devfs_init.c,
libfs/src/dosfs/dosfs.h, libfs/src/dosfs/msdos.h,
libfs/src/dosfs/msdos_init.c, libfs/src/imfs/imfs.h,
libfs/src/imfs/imfs_eval.c, libfs/src/imfs/imfs_init.c,
libfs/src/imfs/miniimfs_init.c,
libfs/src/nfsclient/src/librtemsNfs.h,
libfs/src/rfs/rtems-rfs-rtems.c, libfs/src/rfs/rtems-rfs.h,
libnetworking/lib/ftpfs.c, libnetworking/rtems/ftpfs.h,
libnetworking/rtems/tftp.h: New mount_h API.
* libfs/src/devfs/devfs_eval.c: Local include of extern ops.
* libfs/src/nfsclient/src/nfs.c: New mount API. Removed the mount
me call and fixed the initialisation to happen when mounting.
* libmisc/Makefile.am, libmisc/shell/shellconfig.h: Remove mount
filesystem files.
* libmisc/fsmount/fsmount.c, libmisc/fsmount/fsmount.h: Updated to
the new mount table values.
* libmisc/shell/main_mount_ftp.c,
libmisc/shell/main_mount_msdos.c, libmisc/shell/main_mount_rfs.c,
libmisc/shell/main_mount_tftp.c: Removed.
* libmisc/shell/main_mount.c: Use the new mount API. Also access
the file system table for the file system types.
* libnetworking/lib/tftpDriver.c: Updated to the new mount
API. Fixed to allow mounting from any mount point. Also can now
have more than file system mounted.
* sapi/include/confdefs.h: Add file system configuration support.
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* libfs/src/devfs/devfs.h, libfs/src/devfs/devfs_eval.c:
Use size_t instead of int for pathlen.
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* Makefile.am, preinstall.am: Added statvfs.h.
* libcsupport/Makefile.am: Add statvfs.c.
* libcsupport/include/sys/statvfs.h, libcsupport/src/statvfs.c:
New.
* libcsupport/include/rtems/libio.h: Add a file system handler for
the statvfs call.
* libfs/src/devfs/devfs_init.c, libfs/src/dosfs/msdos_init.c,
libfs/src/imfs/imfs_init.c, libfs/src/nfsclient/src/nfs.c: Set the
statvfs handler to NULL.
* include/rtems/fs.h: Add a second node access field for the RFS
file system to hold a directory offset while the existing field
holds the inode number. This save a rescan of the directory when
working with directories.
* libblock/include/rtems/bdbuf.h: Added references and user fields
to the buffer descriptor.
* libblock/src/bdbuf.c: Added dynamic buffer support for different
block sizes. Fixed a number of bugs.
* libblock/src/blkdev.c: Release the disk device on an error.
* libblock/src/diskdevs.c: Set the block size to the media block
size during initialisation of the disk device.
* libblock/src/flashdisk.c, libblock/src/nvdisk.c,
libblock/src/ramdisk.c: Updated the drivers to handle variable
block sizes.
* libfs/src/dosfs/fat.c, libfs/src/dosfs/fat.h: Release any
buffers when an error occurs. The FAT buffer layer hangs onto a
single buffer while mounted. This should be fixed.
* sapi/inline/rtems/chain.inl: Added rtems_chain_set_off_chain,
rtems_chain_is_node_off_chain, and rtems_chain_previous.
* score/inline/rtems/score/chain.inl: Added _Chain_Set_off_chain,
and _Chain_Is_node_off_chain.
* libmisc/shell/main_ln.c, libmisc/shell/main_mknod.c,
libmisc/shell/mknod-pack_dev.c, libmisc/shell/mknod-pack_dev.h:
New shell commands.
* libmisc/Makefile.am, libmisc/shell/shellconfig.h: Added ln and
mknod commands.
* libmisc/shell/hexdump-display.c: Fixed the reopen bug which
showed up as a free with a bad pointer.
* libmisc/shell/main_mount.c: List the user adding file system
when listing the available file systems to mount.
* libmisc/shell/utils-cp.c: Remove the fixed static copy buffer
and use a large dynamic buffer.
* score/inline/rtems/score/address.inl, score/src/coremsgsubmit.c,
score/src/objectallocate.c, score/src/objectfree.c: Remove
warnings.
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* libfs/src/devfs/devfs.h: Fix spelling error.
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* libfs/src/devfs/devfs_eval.c: Fix bug where use of strncmp() resulted
in a partial match being considered a full name match. On ERC32,
looking for /dev/console would match /dev/console_b first.
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* libblock/src/bdbuf.c: Update comments.
* libblock/src/bdpart.c, libblock/src/ide_part_table.c: Get the
device from the rdev field of the stat buf.
* libcsupport/include/rtems/libio.h: Add a path length to evalpath
handler. Add parent locations to rmmod and unlink handlers.
* libcsupport/include/rtems/libio_.h: Add a path length to
rtems_filesystem_evaluate_path. Add
rtems_filesystem_evaluate_relative_path, rtems_filesystem_dirname,
and rtems_filesystem_prefix_separators. Remove
rtems_filesystem_evaluate_parent.
* libcsupport/src/base_fs.c, libcsupport/src/chdir.c,
libcsupport/src/chmod.c, libcsupport/src/chown.c,
libcsupport/src/chroot.c, libcsupport/src/fchdir.c,
libcsupport/src/link.c, libcsupport/src/mount.c,
libcsupport/src/open.c, libcsupport/src/privateenv.c,
libcsupport/src/readlink.c, libcsupport/src/unmount.c,
libcsupport/src/utime.c, libcsupport/src/unmount.c,
libcsupport/src/utime.c, libfs/src/devfs/devfs.h,
libfs/src/devfs/devfs_eval.c, libfs/src/devfs/devstat.c,
libfs/src/dosfs/msdos_create.c, libfs/src/dosfs/msdos_misc.c,
libfs/src/imfs/imfs.h, libfs/src/imfs/imfs_eval.c,
libfs/src/imfs/imfs_load_tar.c, libfs/src/imfs/ioman.c,
libfs/src/pipe/pipe.c, libmisc/fsmount/fsmount.c,
libnetworking/lib/ftpfs.c: Add the length parameter to the eval
call.
* libcsupport/src/eval.c: Add rtems_filesystem_prefix_separators,
rtems_filesystem_dirname,
rtems_filesystem_evaluate_relative_path. Add the length parameter
to the eval call.
* libcsupport/src/rmdir.c: Find the parent pathloc then the node
pathloc from that node. Remove the call to find the parent given
the node pathloc.
* libcsupport/src/stat.c: Add the length parameter to the eval
call. Set the device into the rdev field.
* libcsupport/src/unlink.c: Find the parent pathloc then the node
pathloc from that node. Remove the call to find the parent given
the node pathloc.
* libfs/src/dosfs/fat.c, libfs/src/dosfs/msdos_format.c: Get the
disk device number from the stat rdev field.
* libfs/src/dosfs/msdos.h: Add the length parameter to the eval
call. Add the parent pathloc to the rmnod handler.
* libfs/src/dosfs/msdos_dir.c: Add the parent pathloc to the rmnod
handler.
* libfs/src/dosfs/msdos_eval.c: Add the length parameter to the
eval and token call.
* libfs/src/imfs/imfs_directory.c: Add the parent pathloc to the
rmnod handler.
* libfs/src/imfs/imfs_fchmod.c: Do not test the mode flags for
only the allowed flags. Add the missing flags spec'ed in the POSIX
standard.
* libfs/src/imfs/imfs_fsunmount.c, libfs/src/imfs/imfs_rmnod.c,
libfs/src/imfs/imfs_unlink.c, libfs/src/imfs/memfile.c: Add the
parent node. Currently ignored in the IMFS.
* libfs/src/imfs/imfs_stat.c: Return the device number in the rdev
field.
* libfs/src/imfs/imfs_mknod.c, libfs/src/imfs/imfs_symlink.c : Add
the length parameter to the token call.
* libfs/src/nfsclient/src/nfs.c: Add the length parameter to the
eval call and parent node to the rmnod and unlink command.
* libmisc/shell/internal.h: Remove the libc mounter decl to make
public.
* libmisc/shell/main_mount.c: Add support for hooking external
mount support for new file systems.
* libmisc/shell/shell.h: Add helper functions for the mount
command.
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* libfs/Makefile.am: Add stub for devide filesystem for unix port.
* libfs/src/devfs/devfs_unixstub.c: New file.
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* libfs/src/devfs/devclose.c, libfs/src/devfs/devfs_eval.c,
libfs/src/devfs/devioctl.c, libfs/src/devfs/devopen.c,
libfs/src/devfs/devread.c, libfs/src/devfs/devwrite.c: Fix warnings.
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* libfs/src/devfs/devclose.c, libfs/src/devfs/devfs_init.c,
libfs/src/devfs/devfs_show.c, libfs/src/devfs/devioctl.c,
libfs/src/devfs/devopen.c, libfs/src/devfs/devread.c,
libfs/src/devfs/devwrite.c: Fix warnings.
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* Makefile.am, preinstall.am, libcsupport/Makefile.am,
libcsupport/include/rtems/libcsupport.h,
libcsupport/include/rtems/libio.h, libcsupport/src/base_fs.c,
libcsupport/src/libio_init.c, libcsupport/src/newlibc_exit.c,
libcsupport/src/newlibc_init.c, libcsupport/src/sync.c,
libfs/Makefile.am, libfs/src/imfs/deviceio.c,
sapi/include/confdefs.h: Merge GSOC project code to add simple device
only filesystem (devfs), optionally completely drop out filesystem,
and to clean up disabling newlib reentrancy support. This dropped 17K
from the minimum.exe for sparc/sis and arm/rtl22xx_t now has a 15K
code space.
* libcsupport/src/__usrenv.c, libcsupport/src/newlibc_reent.c,
libfs/src/devfs/devclose.c, libfs/src/devfs/devfs.h,
libfs/src/devfs/devfs_eval.c, libfs/src/devfs/devfs_init.c,
libfs/src/devfs/devfs_mknod.c, libfs/src/devfs/devfs_node_type.c,
libfs/src/devfs/devfs_show.c, libfs/src/devfs/devioctl.c,
libfs/src/devfs/devopen.c, libfs/src/devfs/devread.c,
libfs/src/devfs/devstat.c, libfs/src/devfs/devwrite.c,
libfs/src/imfs/deviceerrno.c: New files.
* libcsupport/src/newlibc.c: Removed.
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