u-boot/test/env/Makefile
Roman Kapl 9dfdbd9f0c hashtable: fix environment variable corruption
Only first previously deleted entry was recognized, leading hsearch_r
to think that there was no previously deleted entry. It then conluded
that a free entry was found, even if there were no free entries and it
overwrote a random entry.

This patch makes sure all deleted or free entries are always found and
also introduces constants for the 0 and -1 numbers. Unit tests to excersise a
simple hash table usage and catch the corruption were added.

To trash your environment, simply run this loop:

setenv i 0
while true; do
    setenv v_$i $i
    setenv v_$i
    setexpr i $i + 1
done

Signed-off-by: Roman Kapl <rka@sysgo.com>
2019-02-09 07:50:54 -05:00

7 lines
145 B
Makefile

# SPDX-License-Identifier: GPL-2.0+
#
# Copyright (c) 2015 National Instruments, Inc
obj-y += cmd_ut_env.o
obj-y += attr.o
obj-y += hashtable.o