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readme.vc9.txt

      1 
      2 Building YASM with Microsoft Visual Studio 2008 (C/C++ v9)
      3 ----------------------------------------------------------
      4 
      5 This note describes how to build YASM using Microsoft Visual 
      6 Studio 2008 (C/C++ v9).  It also provides a way of using 
      7 these files to build YASM with Visual Studio 2005 (C/C++ v8).
      8 
      9 1. The Compiler
     10 ---------------
     11 
     12 If you want to build the 64-bit version of YASM you will need 
     13 to install the Visual Studio 2008 64-bit tools, which may not 
     14 be installed by default.
     15 
     16 2. YASM Download
     17 ----------------
     18 
     19 First YASM needs to be downloaded and the files placed within 
     20 a suitable directory, which will be called <yasm> here but can 
     21 be named and located as you wish.
     22 
     23 3. Building YASM with Microsoft VC9
     24 -----------------------------------
     25 
     26 Now locate and double click on the yasm.sln solution file in 
     27 the 'Mkfiles/vc9' subdirectory to open the build project in 
     28 the Visual Studio 2008 IDE and then select:
     29 
     30     win32 or x64 build
     31     release or debug build
     32 
     33 as appropriate to build the YASM binaries that you need.
     34 
     35 4. Using YASM with Visual Sudio 2008 and VC++ version 9
     36 -------------------------------------------------------
     37 
     38 1. Firstly you need to locate the directory (or directories) 
     39 where the VC++ compiler binaries are located and put copies 
     40 of the appropriate yasm.exe binary in these directories. A
     41 typical location is:
     42 
     43 C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\bin
     44 
     45 Depending on your system you can use either the win32 or the
     46 x64 version of YASM.
     47 
     48 2. To use the new custom tools facility in Visual Studio 2008,
     49 you need to place a copy of the yasm.rules file in the Visual 
     50 Studio 2008 VC project defaults directory, which is typically 
     51 located at:
     52 
     53 C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC
     54   \VCProjectDefaults
     55 
     56 This allows you to configure YASM as an assembler within the VC++
     57 IDE. To use YASM in a project, right click on the project in the
     58 Solution Explorer and select 'Custom Build Rules..'. This will 
     59 give you a dialog box that allows you to select YASM as an 
     60 assembler (note that your assembler files need to have the 
     61 extension '.asm').
     62 
     63 To assemble a file with YASM, select the Property Page for the 
     64 file and the select 'Yasm Assembler' in the Tool dialog entry. 
     65 Then click 'Apply' and an additional property page entry will 
     66 appear and enable YASM settings to be established.
     67 
     68 As alternative to placing the yasm.rules files as described 
     69 above is to set the rules file path in the Visual Studio 2008
     70 settings dialogue.
     71 
     72 5. A Linker Issue
     73 -----------------
     74 
     75 There appears to be a linker bug in the VC++ v9 linker that 
     76 prevents symbols with absolute addresses being linked in DLL 
     77 builds.  This means, for example, that LEA instructions of 
     78 the general form:
     79 
     80    lea, rax,[rax+symbol]
     81 
     82 cannot be used for DLL builds.  The following general form 
     83 has to be used instead:
     84 
     85    lea rcx,[symbol wrt rip]
     86    lea rax,[rax+rcx]
     87 
     88 This limitation may also cause problems with other instruction 
     89 that use absolute addresses.
     90 
     91 6. Building with Visual Studio 2005
     92 -----------------------------------
     93 
     94 The Python program vc98_swap.py will convert VC9 build projects 
     95 into those  needed for Visual Studio 2005 (VC8).  It will also 
     96 convert files that have been converted in this way back into their
     97 original form.  It does this conversion by looking for *.vcproj 
     98 and *.sln files in the current working directory and its sub-directories and changing the following line in each *.vcproj 
     99 file:
    100 
    101     Version="9.00"
    102 
    103 to:
    104 
    105     Version="8.00"
    106 
    107 or vice versa.
    108 
    109 The lines
    110 
    111   Microsoft Visual Studio Solution File, Format Version 10.00
    112   # Visual Studio 2008
    113  
    114 in *.sln files are changed to:
    115 
    116   Microsoft Visual Studio Solution File, Format Version 9.00
    117   # Visual Studio 2005
    118 
    119 or vice versa.
    120 
    121 Because it acts recursively on all sub-directories of this 
    122 directory it is important not to run it at a directory level 
    123 in which not all projects are to be converted.
    124 
    125 7. Acknowledgements
    126 -------------------
    127 
    128 I am most grateful for the fantastic support that Peter Johnson,
    129 YASM's creator, has given me in tracking down issues in using
    130 YASM for the production of Windows x64 code.
    131 
    132   Brian Gladman, 10th October 2008
    133