arm_drain_writebuf(2) [netbsd man page]

ARM_DRAIN_WRITEBUF(2)					    BSD/arm System Calls Manual 				     ARM_DRAIN_WRITEBUF(2)

NAME

     arm_drain_writebuf -- drains the CPU write buffer

LIBRARY

     ARM Architecture Library (libarm, -larm)

SYNOPSIS

     #include <machine/sysarch.h>

     int
     arm_drain_writebuf();

DESCRIPTION

     arm_drain_writebuf() will make sure that all the entries in the processor write buffer are written out to memory.

     Not all processors support this operation (currently only the SA110).  Those processes that do not treat this function as a null-op.

ERRORS

     arm_drain_writebuf() will never fail so will always return 0.

REFERENCES

     StrongARM Data Sheet

BSD
								  March 29, 2002							       BSD

I386_GET_LDT(2) 					   BSD/i386 System Calls Manual 					   I386_GET_LDT(2)

NAME

     i386_get_ldt, i386_set_ldt -- manage i386 per-process Local Descriptor Table entries

LIBRARY

     i386 Architecture Library (libi386, -li386)

SYNOPSIS

     #include <sys/types.h>
     #include <machine/segments.h>
     #include <machine/sysarch.h>

     int
     i386_get_ldt(int start_sel, union descriptor *descs, int num_sels);

     int
     i386_set_ldt(int start_sel, union descriptor *descs, int num_sels);

DESCRIPTION

     i386_get_ldt() will return the list of i386 descriptors that the process has in its LDT.  i386_set_ldt() will set a list of i386 descriptors
     for the current process in its LDT.  Both routines accept a starting selector number start_sel , an array of memory that will contain the
     descriptors to be set or returned descs , and the number of entries to set or return num_sels.

     The argument descs can be either segment_descriptor or gate_descriptor and are defined in <i386/segments.h> .
     These structures are defined by the architecture as disjoint bit-fields, so care must be taken in constructing them.

RETURN VALUES

     Upon successful completion, i386_get_ldt() returns the number of descriptors currently in the LDT.  i386_set_ldt() returns the first selector
     set.  Otherwise, a value of -1 is returned and the global variable errno is set to indicate the error.

ERRORS

     i386_get_ldt() and i386_set_ldt() will fail if:

     [EINVAL]  An inappropriate parameter was used for start_sel or num_sels.

     [EACCES]  The caller attempted to use a descriptor that would circumvent protection or cause a failure.

REFERENCES

     i386 Microprocessor Programmer's Reference Manual, Intel

WARNING

     You can really hose your process using this.

BSD
								September 20, 1993							       BSD