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Diffstat (limited to 'dist/windows/mcode/windows_default_path.adb')
-rw-r--r-- | dist/windows/mcode/windows_default_path.adb | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/dist/windows/mcode/windows_default_path.adb b/dist/windows/mcode/windows_default_path.adb new file mode 100644 index 000000000..c627356f9 --- /dev/null +++ b/dist/windows/mcode/windows_default_path.adb @@ -0,0 +1,68 @@ +-- Find installation path (using executable). +-- Copyright (C) 2002 - 2016 Tristan Gingold +-- +-- GHDL is free software; you can redistribute it and/or modify it under +-- the terms of the GNU General Public License as published by the Free +-- Software Foundation; either version 2, or (at your option) any later +-- version. +-- +-- GHDL is distributed in the hope that it will be useful, but WITHOUT ANY +-- WARRANTY; without even the implied warranty of MERCHANTABILITY or +-- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +-- for more details. +-- +-- You should have received a copy of the GNU General Public License +-- along with GCC; see the file COPYING. If not, write to the Free +-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA +-- 02111-1307, USA. +-- +-- As a special exception, if other files instantiate generics from this +-- unit, or you link this unit with other files to produce an executable, +-- this unit does not by itself cause the resulting executable to be +-- covered by the GNU General Public License. This exception does not +-- however invalidate any other reasons why the executable file might be +-- covered by the GNU Public License. + +with Interfaces.C; use Interfaces.C; +with System; use System; + +package body Windows_Default_Path is + + subtype DWORD is Interfaces.C.Unsigned_Long; + subtype HINSTANCE is Address; + function GetModuleFileName (Inst : HINSTANCE; Buf : Address; Size : DWORD) + return DWORD; + pragma Import (Stdcall, GetModuleFileName, "GetModuleFileNameA"); + + function Get_Windows_Exec_Path return String + is + File : String (1 .. 256); + Size : DWORD; + P : Natural; + begin + -- Get exe file path. + Size := GetModuleFileName (Null_Address, File'Address, File'Length); + if Size = 0 or Size = File'Length then + return "{cannot find install path}\lib"; + end if; + + -- Remove Program file. + P := Natural (Size); + while P > 0 loop + exit when File (P) = '\'; + exit when File (P) = ':' and P = 2; + P := P - 1; + end loop; + if File (P) = '\' and P > 1 then + -- Remove directory + P := P - 1; + while P > 0 loop + exit when File (P) = '\'; + exit when File (P) = ':' and P = 2; + P := P - 1; + end loop; + end if; + + return File (1 .. P); + end Get_Windows_Exec_Path; +end Windows_Default_Path; |