xref: /illumos-gate/usr/src/man/man9f/bzero.9f (revision 21ad40f5447a73ac8a7ed2b9b66dd73ff1b088c1)
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Copyright 1989 AT&T
Copyright (c) 2006, Sun Microsystems, Inc. All Rights Reserved
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BZERO 9F "Jan 16, 2006"
NAME
bzero - clear memory for a given number of bytes
SYNOPSIS

#include <sys/types.h>
#include <sys/ddi.h>



void bzero(void *addr, size_t bytes);
INTERFACE LEVEL

Architecture independent level 1 (DDI/DKI).

PARAMETERS
addr

Starting virtual address of memory to be cleared.

bytes

The number of bytes to clear starting at addr.

DESCRIPTION

The bzero() function clears a contiguous portion of memory by filling it with zeros.

CONTEXT

The bzero() function can be called from user, interrupt, or kernel context.

SEE ALSO

bcopy(9F), clrbuf(9F), kmem_zalloc(9F)

Writing Device Drivers

WARNINGS

The address range specified must be within the kernel space. No range checking is done. If an address outside of the kernel space is selected, the driver may corrupt the system in an unpredictable way.