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[RESTORED!] Allow mounting of any directory as the root directory.

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Provide definitions for the macros:
* RB_ROOT_VOL_HIDDEN(v) to exclude certain items from the root.
* RB_ROOT_CONTENTS to return a string with the name of the
directory to mount in the root.

Defaults are in export/rbpaths.h

It's a bit much for those that don't need the full functionality.
Some conditional define can cut it back a lot to cut out things only
needed if alternate root mounts are required. I'm just not bothering
yet. The basic concept would be applied to all targets to keep file
code from forking too much.

Change-Id: I3b5a14c530ff4b10d97f67636237d96875eb8969
Author: Michael Sevakis
This commit is contained in:
William Wilgus 2022-03-03 07:37:03 -05:00
parent f88ea12bac
commit 9daacabd65
18 changed files with 584 additions and 217 deletions
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5
firmware/include/fileobj_mgr.h
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@ -29,6 +29,11 @@ void file_binding_remove(struct file_base_binding *bindp);
void file_binding_remove_next(struct file_base_binding *prevp,
struct file_base_binding *bindp);
bool fileobj_mount(const struct file_base_info *srcinfop,
unsigned int callflags,
struct file_base_binding **bindpp);
void fileobj_unmount(struct file_base_binding *bindp);
void fileobj_fileop_open(struct filestr_base *stream,
const struct file_base_info *srcinfop,
unsigned int callflags);