forked from Minki/linux
dfec072ecd
General description: kmemcheck is a patch to the linux kernel that detects use of uninitialized memory. It does this by trapping every read and write to memory that was allocated dynamically (e.g. using kmalloc()). If a memory address is read that has not previously been written to, a message is printed to the kernel log. Thanks to Andi Kleen for the set_memory_4k() solution. Andrew Morton suggested documenting the shadow member of struct page. Signed-off-by: Vegard Nossum <vegardno@ifi.uio.no> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> [export kmemcheck_mark_initialized] [build fix for setup_max_cpus] Signed-off-by: Ingo Molnar <mingo@elte.hu> [rebased for mainline inclusion] Signed-off-by: Vegard Nossum <vegardno@ifi.uio.no>
17 lines
436 B
C
17 lines
436 B
C
#ifndef ARCH__X86__MM__KMEMCHECK__SHADOW_H
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#define ARCH__X86__MM__KMEMCHECK__SHADOW_H
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enum kmemcheck_shadow {
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KMEMCHECK_SHADOW_UNALLOCATED,
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KMEMCHECK_SHADOW_UNINITIALIZED,
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KMEMCHECK_SHADOW_INITIALIZED,
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KMEMCHECK_SHADOW_FREED,
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};
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void *kmemcheck_shadow_lookup(unsigned long address);
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enum kmemcheck_shadow kmemcheck_shadow_test(void *shadow, unsigned int size);
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void kmemcheck_shadow_set(void *shadow, unsigned int size);
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#endif
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