kvm_getlwps() returns the set of LWPs belonging to the process specified by
pid or
procaddr in the kernel indicated by
kd. The number of LWPs found is returned in the reference parameter
cnt. The LWPs are returned as a contiguous array of
kinfo_lwp structures. This memory is locally allocated, and subsequent calls to
kvm_getlwps() and
kvm_close() will overwrite this storage.
Only the first
elemsize bytes of each array entry are returned. If the size of the
kinfo_lwp structure increases in size in a future release of
NetBSD the kernel will only return the requested amount of data for each array entry and programs that use
kvm_getlwps() will continue to function without the need for recompilation.
If called against an active kernel, the
kvm_getlwps() function will use the
sysctl(3) interface and return information about the process identified by
pid; otherwise the kernel memory device file or swap device will be accessed and the process is identified by the location passed in
paddr.