66 строки
1.2 KiB
C
66 строки
1.2 KiB
C
/*
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* Architecture specific debugfs files
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*
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* Copyright (C) 2007, Intel Corp.
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* Huang Ying <ying.huang@intel.com>
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*
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* This file is released under the GPLv2.
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*/
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#include <linux/debugfs.h>
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#include <linux/stat.h>
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#include <linux/init.h>
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#include <asm/setup.h>
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#ifdef CONFIG_DEBUG_BOOT_PARAMS
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static struct debugfs_blob_wrapper boot_params_blob = {
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.data = &boot_params,
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.size = sizeof(boot_params),
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};
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static int __init boot_params_kdebugfs_init(void)
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{
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int error;
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struct dentry *dbp, *version, *data;
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dbp = debugfs_create_dir("boot_params", NULL);
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if (!dbp) {
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error = -ENOMEM;
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goto err_return;
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}
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version = debugfs_create_x16("version", S_IRUGO, dbp,
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&boot_params.hdr.version);
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if (!version) {
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error = -ENOMEM;
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goto err_dir;
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}
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data = debugfs_create_blob("data", S_IRUGO, dbp,
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&boot_params_blob);
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if (!data) {
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error = -ENOMEM;
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goto err_version;
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}
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return 0;
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err_version:
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debugfs_remove(version);
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err_dir:
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debugfs_remove(dbp);
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err_return:
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return error;
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}
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#endif
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static int __init arch_kdebugfs_init(void)
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{
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int error = 0;
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#ifdef CONFIG_DEBUG_BOOT_PARAMS
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error = boot_params_kdebugfs_init();
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#endif
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return error;
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}
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arch_initcall(arch_kdebugfs_init);
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