KVM_GETLWPS(3) BSD Library Functions Manual KVM_GETLWPS(3)
kvm_getlwps -- access state of LWPs belonging to a user process
Kernel Data Access Library (libkvm, -lkvm)
struct kinfo_lwp *
kvm_getlwps(kvm_t *kd, int pid, u_long procaddr, int *elemsize, int *cnt);
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 param-
eter 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
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) inter-
face 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.
kvm_getlwps() returns NULL on failure.
kvm(3), kvm_close(3), kvm_geterr(3), kvm_getproc2(3), kvm_getprocs(3), kvm_nlist(3),
kvm_open(3), kvm_openfiles(3), kvm_read(3), kvm_write(3)
These routines do not belong in the kvm interface.
BSD February 10, 2004 BSD