scripts/coccinelle/api/resource_size.cocci

   1 ///
   2 /// Use resource_size function on resource object
   3 /// instead of explicit computation.
   4 ///
   5 //  Confidence: High
   6 //  Copyright: (C) 2009, 2010 Nicolas Palix, DIKU.  GPLv2.
   7 //  Copyright: (C) 2009, 2010 Julia Lawall, DIKU.  GPLv2.
   8 //  Copyright: (C) 2009, 2010 Gilles Muller, INRIA/LiP6.  GPLv2.
   9 //  URL: http://coccinelle.lip6.fr/
  10 //  Options:
  11 //
  12 //  Keywords: resource_size
  13 //  Version min: 2.6.27 resource_size
  14 //
  15
  16 virtual context
  17 virtual patch
  18 virtual org
  19 virtual report
  20
  21 //----------------------------------------------------------
  22 //  For context mode
  23 //----------------------------------------------------------
  24
  25 @r_context depends on context && !patch && !org@
  26 struct resource *res;
  27 @@
  28
  29 * (res->end - res->start) + 1
  30
  31 //----------------------------------------------------------
  32 //  For patch mode
  33 //----------------------------------------------------------
  34
  35 @r_patch depends on !context && patch && !org@
  36 struct resource *res;
  37 @@
  38
  39 - (res->end - res->start) + 1
  40 + resource_size(res)
  41
  42 //----------------------------------------------------------
  43 //  For org mode
  44 //----------------------------------------------------------
  45
  46
  47 @r_org depends on !context && !patch && (org || report)@
  48 struct resource *res;
  49 position p;
  50 @@
  51
  52  (res->end@p - res->start) + 1
  53
  54 @rbad_org depends on !context && !patch && (org || report)@
  55 struct resource *res;
  56 position p != r_org.p;
  57 @@
  58
  59  res->end@p - res->start
  60
  61 @script:python depends on org@
  62 p << r_org.p;
  63 x << r_org.res;
  64 @@
  65
  66 msg="ERROR with %s" % (x)
  67 msg_safe=msg.replace("[","@(").replace("]",")")
  68 coccilib.org.print_todo(p[0], msg_safe)
  69
  70 @script:python depends on report@
  71 p << r_org.p;
  72 x << r_org.res;
  73 @@
  74
  75 msg="ERROR: Missing resource_size with %s" % (x)
  76 coccilib.report.print_report(p[0], msg)
  77
  78 @script:python depends on org@
  79 p << rbad_org.p;
  80 x << rbad_org.res;
  81 @@
  82
  83 msg="WARNING with %s" % (x)
  84 msg_safe=msg.replace("[","@(").replace("]",")")
  85 coccilib.org.print_todo(p[0], msg_safe)
  86
  87 @script:python depends on report@
  88 p << rbad_org.p;
  89 x << rbad_org.res;
  90 @@
  91
  92 msg="WARNING: Suspicious code. resource_size is maybe missing with %s" % (x)
  93 coccilib.report.print_report(p[0], msg)