lkml.org 
[lkml]   [2006]   [May]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 2.6.17-rc5 7/7] Simple testing for kmemleak
    Date
    From: Catalin Marinas <catalin.marinas@arm.com>

    This patch only contains some very simple testing at the moment. Proper
    testing will be needed.

    Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
    ---

    lib/Kconfig.debug | 9 +++++++++
    mm/Makefile | 1 +
    mm/memleak-test.c | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++++
    3 files changed, 64 insertions(+), 0 deletions(-)

    diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
    index 821565a..d0404e2 100644
    --- a/lib/Kconfig.debug
    +++ b/lib/Kconfig.debug
    @@ -122,6 +122,15 @@ config DEBUG_MEMLEAK_PREINIT_POINTERS
    buffer will be freed once the system initialization is
    completed.

    +config DEBUG_MEMLEAK_TEST
    + tristate "Test the kernel memory leak detector"
    + default n
    + depends on DEBUG_MEMLEAK
    + help
    + Say Y here to build the test harness for the kernel memory
    + leak detector. At the moment, this option enables a module
    + that explicitly leaks memory.
    +
    config DEBUG_PREEMPT
    bool "Debug preemptible kernel"
    depends on DEBUG_KERNEL && PREEMPT
    diff --git a/mm/Makefile b/mm/Makefile
    index d487d96..aef1bd8 100644
    --- a/mm/Makefile
    +++ b/mm/Makefile
    @@ -24,3 +24,4 @@ obj-$(CONFIG_MEMORY_HOTPLUG) += memory_h
    obj-$(CONFIG_FS_XIP) += filemap_xip.o
    obj-$(CONFIG_MIGRATION) += migrate.o
    obj-$(CONFIG_DEBUG_MEMLEAK) += memleak.o
    +obj-$(CONFIG_DEBUG_MEMLEAK_TEST) += memleak-test.o
    diff --git a/mm/memleak-test.c b/mm/memleak-test.c
    new file mode 100644
    index 0000000..15ddd36
    --- /dev/null
    +++ b/mm/memleak-test.c
    @@ -0,0 +1,54 @@
    +/*
    + * mm/memleak-test.c
    + *
    + * Copyright (C) 2006 ARM Limited
    + * Written by Catalin Marinas <catalin.marinas@arm.com>
    + *
    + * This program is free software; you can redistribute it and/or modify
    + * it under the terms of the GNU General Public License version 2 as
    + * published by the Free Software Foundation.
    + *
    + * This program is distributed in the hope that it will be useful,
    + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    + * GNU General Public License for more details.
    + *
    + * You should have received a copy of the GNU General Public License
    + * along with this program; if not, write to the Free Software
    + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
    + */
    +
    +#include <linux/init.h>
    +#include <linux/kernel.h>
    +#include <linux/module.h>
    +#include <linux/slab.h>
    +#include <linux/vmalloc.h>
    +
    +#include <linux/memleak.h>
    +
    +/* Some very simple testing. This function needs to be extended for
    + * proper testing */
    +static int __init memleak_test_init(void)
    +{
    + printk(KERN_INFO "KMemLeak testing\n");
    +
    + /* make some orphan pointers */
    + kmalloc(32, GFP_KERNEL);
    + kmalloc(32, GFP_KERNEL);
    +#ifndef CONFIG_MODULES
    + kmem_cache_alloc(files_cachep, GFP_KERNEL);
    + kmem_cache_alloc(files_cachep, GFP_KERNEL);
    +#endif
    + vmalloc(64);
    + vmalloc(64);
    +
    + return 0;
    +}
    +module_init(memleak_test_init);
    +
    +static void __exit memleak_test_exit(void)
    +{
    +}
    +module_exit(memleak_test_exit);
    +
    +MODULE_LICENSE("GPL");
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/
    \
     
     \ /
      Last update: 2006-05-30 16:12    [W:0.026 / U:60.560 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site