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1 ------------------------------------------------------------------------------
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2 -- --
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3 -- GNAT COMPILER COMPONENTS --
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4 -- --
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5 -- S W I T C H - M --
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6 -- --
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7 -- S p e c --
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8 -- --
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145
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9 -- Copyright (C) 2001-2019, Free Software Foundation, Inc. --
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111
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10 -- --
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11 -- GNAT is free software; you can redistribute it and/or modify it under --
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12 -- terms of the GNU General Public License as published by the Free Soft- --
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13 -- ware Foundation; either version 3, or (at your option) any later ver- --
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14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
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17 -- for more details. You should have received a copy of the GNU General --
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18 -- Public License distributed with GNAT; see file COPYING3. If not, go to --
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19 -- http://www.gnu.org/licenses for a complete copy of the license. --
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20 -- --
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21 -- GNAT was originally developed by the GNAT team at New York University. --
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22 -- Extensive contributions were provided by Ada Core Technologies Inc. --
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23 -- --
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24 ------------------------------------------------------------------------------
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25
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26 -- This package scans make switches. Note that the body of Usage must be
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27 -- coordinated with the switches that are recognized by this package.
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28 -- The Usage package also acts as the official documentation for the
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29 -- switches that are recognized. In addition, package Debug documents
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30 -- the otherwise undocumented debug switches that are also recognized.
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31
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32 pragma Warnings (Off);
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33 -- This package is used also by gnatcoll
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34 with System.OS_Lib; use System.OS_Lib;
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35 pragma Warnings (On);
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36
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37 package Switch.M is
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38
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39 Subdirs : String_Ptr := null;
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40 -- The value after the equal sign in switch --subdirs=...
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41 -- Contains the relative subdirectory.
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42
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43 procedure Scan_Make_Switches
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44 (Switch_Chars : String;
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45 Success : out Boolean);
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46 -- Scan a gnatmake switch and act accordingly. For switches that are
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47 -- recognized, Success is set to True. A switch that is not recognized and
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48 -- consists of one small letter causes a fatal error exit and control does
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49 -- not return. For all other not recognized switches, Success is set to
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50 -- False, so that the switch may be passed to the compiler.
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51 --
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52 -- Project_Node_Tree is used to store tree-specific parameters like the
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53 -- project path.
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54
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55 procedure Normalize_Compiler_Switches
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56 (Switch_Chars : String;
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57 Switches : in out Argument_List_Access;
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58 Last : out Natural);
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59 -- Takes a compiler switch which potentially is equivalent to more
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60 -- that one simple switches and returns the equivalent list of simple
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61 -- switches that are stored in an ALI file. Switches will be extended
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62 -- if initially null or too short. Last indicates the index in Switches
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63 -- of the last simple switch. Last is equal to zero, if it has been
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64 -- determined that Switch_Chars is ill-formed or does not contain any
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65 -- switch that should be stored in an ALI file. Otherwise, the list of
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66 -- simple switches is Switches (Switches'First .. Last).
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67 --
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68 -- Example: if Switch_Chars is equal to "-gnatAwue", then the list of
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69 -- simple switches will have 3 components: -gnatA, -gnatwu, -gnatwe.
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70 --
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71 -- The String_Access components of Switches should not be deallocated:
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72 -- they are shallow copies of components in a table in the body.
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73
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74 function Normalize_Compiler_Switches
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75 (Switch_Chars : String) return Argument_List;
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76 -- Similar to the previous procedure. The return value is the list of
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77 -- simple switches. It may be an empty array if it has been determined
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78 -- that Switch_Chars is ill-formed or does not contain any switch that
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79 -- should be stored in an ALI file. The String_Access components of the
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80 -- returned value should not be deallocated.
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81
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82 end Switch.M;
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