User PDB instead of SYM files for Domino 9 Win64

Daniel Nashed  7 November 2013 23:00:00

The current error message that NSD will generate is:

WARNING (0): Sym file (C:\Domino\nnshtest.sym) is version 2. The supported sym file format version for this release is 3. This sym file will be ignored.

In Domino 9.0.1 the message has been updated:

WARNING (0): Sym file (C:\Domino\nnshtest.sym) is version 2. The supported sym file format version for this release is 3. This sym file will be ignored. For improved diagnostics, consider using the PDB files instead.


The new recommendation from IBM is to generate a PDB file instead of SYM files. They will not ship a new maip2isym tool. Domino will search for the file in the original path and the current path -- as long the filename stays the same.

So if you link your application with

/Debug /PDB:nnshtest.pdb /PDBSTRIPPED:nnshtest_stripped.pdb

You have to provide the stripped version but need to rename it to the unstripped version when you deploy it.

NSD in Domino 9 (I have tested it also with some earlier versions and NSD has also used PDB files there) is able to read PDB files and you should ship your application with PDB files instead of SYM files in Domino 9.
You can continue to use SYM files for 32bit. I am personally keeping my Domino 8.5.x development environment for 32bit and continue to distribute code that works on Domino 8.5.x and Domino 9.x.
But I will recompile code for Domino 9 Win64 using the new compiler and generating PDB files.

So for full Domino 9 64bit support an ISV needs to switch to the Microsoft Visual Studio 2010 SP1 compiler as mentioned in a previous log post and also switch from SYM to PDB.

I checked IBM and they are working on an update for the C-API toolkit to describe what exactly is required and maybe they are also updating the makefiles for the sample programs.


-- Daniel

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