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fs/erofs: add filesystem commands

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Add 'ls' and 'load' commands.

Signed-off-by: Huang Jianan <jnhuang95@gmail.com>
This commit is contained in:
Huang Jianan 2022-02-26 15:05:50 +08:00 committed by Tom Rini
parent 65cb73057b
commit 739941e11e
4 changed files with 50 additions and 0 deletions
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1
MAINTAINERS
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@ -813,6 +813,7 @@ EROFS
M: Huang Jianan <jnhuang95@gmail.com>
L: linux-erofs@lists.ozlabs.org
S: Maintained
F: cmd/erofs.c
F: fs/erofs/
F: include/erofs.h

6
cmd/Kconfig
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@ -2201,6 +2201,12 @@ config CMD_CRAMFS
cramfsls - lists files in a cramfs image
cramfsload - loads a file from a cramfs image
config CMD_EROFS
bool "EROFS command support"
select FS_EROFS
help
Support for the EROFS fs
config CMD_EXT2
bool "ext2 command support"
select FS_EXT4

1
cmd/Makefile
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@ -61,6 +61,7 @@ obj-$(CONFIG_CMD_EEPROM) += eeprom.o
obj-$(CONFIG_EFI) += efi.o
obj-$(CONFIG_CMD_EFIDEBUG) += efidebug.o
obj-$(CONFIG_CMD_ELF) += elf.o
obj-$(CONFIG_CMD_EROFS) += erofs.o
obj-$(CONFIG_HUSH_PARSER) += exit.o
obj-$(CONFIG_CMD_EXT4) += ext4.o
obj-$(CONFIG_CMD_EXT2) += ext2.o

42
cmd/erofs.c Normal file
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@ -0,0 +1,42 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2022 Huang Jianan <jnhuang95@gmail.com>
*
* Author: Huang Jianan <jnhuang95@gmail.com>
*
* erofs.c: implements EROFS related commands
*/
#include <command.h>
#include <fs.h>
#include <erofs.h>
static int do_erofs_ls(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[])
{
return do_ls(cmdtp, flag, argc, argv, FS_TYPE_EROFS);
}
U_BOOT_CMD(erofsls, 4, 1, do_erofs_ls,
"List files in directory. Default: root (/).",
"<interface> [<dev[:part]>] [directory]\n"
" - list files from 'dev' on 'interface' in 'directory'\n"
);
static int do_erofs_load(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[])
{
return do_load(cmdtp, flag, argc, argv, FS_TYPE_EROFS);
}
U_BOOT_CMD(erofsload, 7, 0, do_erofs_load,
"load binary file from a EROFS filesystem",
"<interface> [<dev[:part]> [<addr> [<filename> [bytes [pos]]]]]\n"
" - Load binary file 'filename' from 'dev' on 'interface'\n"
" to address 'addr' from EROFS filesystem.\n"
" 'pos' gives the file position to start loading from.\n"
" If 'pos' is omitted, 0 is used. 'pos' requires 'bytes'.\n"
" 'bytes' gives the size to load. If 'bytes' is 0 or omitted,\n"
" the load stops on end of file.\n"
" If either 'pos' or 'bytes' are not aligned to\n"
" ARCH_DMA_MINALIGN then a misaligned buffer warning will\n"
" be printed and performance will suffer for the load."
);