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SYSCALL_MODULE
SYSCALL_MODULE(9) FreeBSD Kernel Developer's Manual SYSCALL_MODULE(9)
NAME
SYSCALL_MODULE -- syscall kernel module declaration macro
SYNOPSIS
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/module.h>
#include <sys/sysent.h>
SYSCALL_MODULE(name, int *offset, struct sysent *new_sysent,
modeventhand_t evh, void *arg);
DESCRIPTION
The SYSCALL_MODULE() macro declares a new syscall. SYSCALL_MODULE()
expands into a kernel module declaration named as name.
The rest of the arguments expected by this macro are:
offset A pointer to an int which saves the offset in struct sysent
where the syscall is allocated.
new_sysent is a pointer to a structure that specifies the function
implementing the syscall and the number of arguments this
function needs (see <sys/sysent.h>).
evh A pointer to the kernel module event handler function with
the argument arg. Please refer to module(9) for more infor-
mation.
arg The argument passed to the callback functions of the evh
event handler when it is called.
EXAMPLES
A minimal example for a syscall module can be found in
/usr/share/examples/kld/syscall/module/syscall.c.
SEE ALSO
module(9)
/usr/share/examples/kld/syscall/module/syscall.c
AUTHORS
This manual page was written by Alexander Langer <alexATFreeBSD.org>.
FreeBSD 6.2 January 7, 2005 FreeBSD 6.2
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