Add procstat_getvmmap function to get VM layout of a process.

MFC after:	1 month

1 files changed, 29 insertions, 0 deletions

diff --git a/lib/libprocstat/libprocstat.3 b/lib/libprocstat/libprocstat.3
index a64376c..18dc1e9 100644
--- a/lib/libprocstat/libprocstat.3
+++ b/lib/libprocstat/libprocstat.3
@@ -34,8 +34,10 @@
 .Nm procstat_close ,
 .Nm procstat_getfiles ,
 .Nm procstat_getprocs ,
+.Nm procstat_getvmmap ,
 .Nm procstat_freefiles ,
 .Nm procstat_freeprocs ,
+.Nm procstat_freevmmap ,
 .Nm procstat_get_pipe_info ,
 .Nm procstat_get_pts_info ,
 .Nm procstat_get_shm_info ,
@@ -57,6 +59,11 @@
 .Fc
 .Ft void
 .Fn procstat_freeprocs "struct procstat *procstat" "struct kinfo_proc *p"
+.Ft void
+.Fo procstat_freevmmap
+.Fa "struct procstat *procstat"
+.Fa "struct kinfo_vmentry *vmmap"
+.Fc
 .Ft int
 .Fo procstat_get_pipe_info
 .Fa "struct procstat *procstat"
@@ -105,6 +112,12 @@
 .Fa "int arg"
 .Fa "unsigned int *count"
 .Fc
+.Ft "struct kinfo_vmentry *"
+.Fo procstat_getvmmap
+.Fa "struct procstat *procstat"
+.Fa "struct kinfo_proc *kp"
+.Fa "unsigned int *count"
+.Fc
 .Ft "struct procstat *"
 .Fn procstat_open_core "const char *filename"
 .Ft "struct procstat *"
@@ -214,6 +227,22 @@ The caller is responsible to free the allocated memory with a subsequent
 function call.
 .Pp
 The
+.Fn procstat_getvmmap
+function gets a pointer to the
+.Vt procstat
+structure initialized with one of the
+.Fn procstat_open_*
+functions, a pointer to
+.Vt kinfo_proc
+structure, and returns VM layout of the process as a dynamically allocated
+array of
+.Vt kinfo_vmentry
+structures.
+The caller is responsible to free the allocated memory with a subsequent
+.Fn procstat_freevmmap
+function call.
+.Pp
+The
 .Fn procstat_get_pipe_info ,
 .Fn procstat_get_pts_info ,
 .Fn procstat_get_shm_info ,