8871a0eaa9
The first problem is that these SETGET macros lose typing information, and therefore can't see the 'packed' attribute and therefore take unaligned access SIGBUS signals on sparc64 when trying to derefernce the member. The next problem is a similar issue in btrfs_name_hash(). This gets passed things like &key.offset which is a member of a packed structure, losing this packed'ness information btrfs_name_hash() performs a potentially unaligned memory access, again resulting in a SIGBUS.
43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
/*
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* Copyright (C) 2007 Oracle. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License v2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "kerncompat.h"
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#include "hash.h"
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int main() {
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u64 result;
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int ret;
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char line[255];
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char *p;
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while(1) {
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p = fgets(line, 255, stdin);
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if (!p)
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break;
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if (strlen(line) == 0)
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continue;
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if (line[strlen(line)-1] == '\n')
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line[strlen(line)-1] = '\0';
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result = btrfs_name_hash(line, strlen(line));
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printf("hash returns %llu\n", (unsigned long long)result);
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}
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return 0;
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}
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