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authorDr. David von Oheimb <David.von.Oheimb@siemens.com>2020-06-10 14:15:28 +0200
committerDr. David von Oheimb <David.von.Oheimb@siemens.com>2020-07-05 11:29:43 +0200
commit036cbb6bbf30955abdcffaf6e52cd926d8d8ee75 (patch)
tree1929b9d33c7041858cbbed980f8c981d8eb77c3c /NOTES-VMS.md
parent915e7e75a49343ff5ddd23a54219eb32f57aa01c (diff)
Rename NOTES*, README*, VERSION, HACKING, LICENSE to .md or .txt
Reviewed-by: Tim Hudson <tjh@openssl.org> (Merged from https://github.com/openssl/openssl/pull/12109)
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+
+ NOTES FOR THE OPENVMS PLATFORM
+ ==============================
+
+ Requirement details
+ -------------------
+
+ In addition to the requirements and instructions listed in INSTALL,
+ this are required as well:
+
+ * At least ODS-5 disk organization for source and build.
+ Installation can be done on any existing disk organization.
+
+
+ About ANSI C compiler
+ ---------------------
+
+ An ANSI C compiled is needed among other things. This means that
+ VAX C is not and will not be supported.
+
+ We have only tested with DEC C (aka HP VMS C / VSI C) and require
+ version 7.1 or later. Compiling with a different ANSI C compiler may
+ require some work.
+
+ Please avoid using C RTL feature logical names DECC$* when building
+ and testing OpenSSL. Most of all, they can be disruptive when
+ running the tests, as they affect the Perl interpreter.
+
+
+ About ODS-5 directory names and Perl
+ ------------------------------------
+
+ It seems that the perl function canonpath() in the File::Spec module
+ doesn't treat file specifications where the last directory name
+ contains periods very well. Unfortunately, some versions of VMS tar
+ will keep the periods in the OpenSSL source directory instead of
+ converting them to underscore, thereby leaving your source in
+ something like [.openssl-1^.1^.0]. This will lead to issues when
+ configuring and building OpenSSL.
+
+ We have no replacement for Perl's canonpath(), so the best workaround
+ for now is to rename the OpenSSL source directory, as follows (please
+ adjust for the actual source directory name you have):
+
+ $ rename openssl-1^.1^.0.DIR openssl-1_1_0.DIR
+
+
+ About MMS and DCL
+ -----------------
+
+ MMS has certain limitations when it comes to line length, and DCL has
+ certain limitations when it comes to total command length. We do
+ what we can to mitigate, but there is the possibility that it's not
+ enough. Should you run into issues, a very simple solution is to set
+ yourself up a few logical names for the directory trees you're going
+ to use.
+
+
+ About debugging
+ ---------------
+
+ If you build for debugging, the default on VMS is that image
+ activation starts the debugger automatically, giving you a debug
+ prompt. Unfortunately, this disrupts all other uses, such as running
+ test programs in the test framework.
+
+ Generally speaking, if you build for debugging, only use the programs
+ directly for debugging. Do not try to use them from a script, such
+ as running the test suite.
+
+ *The following is not available on Alpha*
+
+ As a compromise, we're turning off the flag that makes the debugger
+ start automatically. If there is a program that you need to debug,
+ you need to turn that flag back on first, for example:
+
+ $ set image /flag=call_debug [.test]evp_test.exe
+
+ Then just run it and you will find yourself in a debugging session.
+ When done, we recommend that you turn that flag back off:
+
+ $ set image /flag=nocall_debug [.test]evp_test.exe
+
+
+ Checking the distribution
+ -------------------------
+
+ There have been reports of places where the distribution didn't quite
+ get through, for example if you've copied the tree from a NFS-mounted
+ Unix mount point.
+
+ The easiest way to check if everything got through as it should is to
+ check for one of the following files:
+
+ [.crypto]opensslconf^.h.in
+
+ The best way to get a correct distribution is to download the gzipped
+ tar file from ftp://ftp.openssl.org/source/, use GZIP -d to uncompress
+ it and VMSTAR to unpack the resulting tar file.
+
+ Gzip and VMSTAR are available here:
+
+ http://antinode.info/dec/index.html#Software
+
+ Should you need it, you can find UnZip for VMS here:
+
+ http://www.info-zip.org/UnZip.html