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  12 .\" Copyright 2015 Joyent, Inc.
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  14 .Dd May 11, 2016
  15 .Dt PLMID 3PROC
  16 .Os
  17 .Sh NAME
  18 .Nm Plmid
  19 .Nd get the link-map identifier of an address
  20 .Sh LIBRARY
  21 .Lb libproc
  22 .Sh SYNOPSIS
  23 .In libproc.h
  24 .Ft int
  25 .Fo Plmid
  26 .Fa "struct ps_prochandle *P"
  27 .Fa "uintptr_t addr"
  28 .Fa "Lmid_t *lmidp"
  29 .Fc
  30 .Sh DESCRIPTION
  31 The
  32 .Fn Plmid
  33 function attempts to determine the link-map identifier that corresponds
  34 to the address
  35 .Fa addr
  36 in the process
  37 .Fa P .
  38 If
  39 .Fa addr
  40 does not correspond to an address from an object mapped in by the
  41 run-time link editor, such as anonymous mapping created with
  42 .Xr mmap 2 ,
  43 then there will be no corresponding link-map identifier.
  44 .Pp
  45 .Fa lmidp
  46 must be a
  47 .Pf non- Dv NULL
  48 pointer that will be filled in with the link-map identifier when it is
  49 successfully determined by the run-time link-editor.
  50 .Sh RETURN VALUES
  51 Upon successful completion, the
  52 .Fn Plmid
  53 function returns
  54 .Sy 0
  55 and updates
  56 .Fa lmidp
  57 with the link-map identifier of
  58 .Fa addr .
  59 Otherwise,
  60 .Sy -1
  61 is returned to indicate that the link-map identifier could not be
  62 determined.
  63 .Sh INTERFACE STABILITY
  64 .Sy Uncommitted
  65 .Sh MT-LEVEL
  66 See
  67 .Sy LOCKING
  68 in
  69 .Xr libproc 3LIB .
  70 .Sh SEE ALSO
  71 .Xr libproc 3LIB ,
  72 .Xr proc 4