DLL Programmer's Guide for TNS/E Systems

Advanced DLL Facility Controls
DLL Programmer’s Guide for TNS/E Systems—527252-006
5-12
Controlling What Checks the Linker Makes and
Reports
Messages are the same on all linker host platforms.
Message-Control Options
The appearance of these messages is controlled by the following options:
-verbose tells the linker to show all messages.
-warn tells the linker to show all fatal-error, error, and warning messages, plus
messages requested by command-stream options, as described in the next
subsection.
-no_verbose tells the linker to show all fatal error and error messages, plus
messages requested by command-stream options, as described in the next
subsection. -noverbose is a synonym for -no_verbose.
The default is -no_verbose, except on Guardian, where the default is -verbose.
If -verbose or -warn is in effect, then when a linking operation finishes, the linker
puts out a completion message that covers the entire process and indicates how many
of each type of message (error, warn, or information) were generated during the linking
process.
Command Stream Requests for Linker Messages
In addition to the progress-reporting linker messages described above, you can
request informational messages by inserting one of the following options. These are
effective regardless of the message-control option in effect.
-y <symbolname> tells the linker to show the names of linkfiles that mention
<symbolname> in their external symbol tables and the information in those tables
about the symbol. -y reports on linkfiles that either reference the symbol or offer it
for use beyond the same compilation.
-show_multiple_defs tells the linker to show information about all multiply defined
symbols. Unlike -y, the linker only provides information about linkfiles that offer the
symbol for use beyond the same compilation, not about those that reference it.
Identifier Severity Meaning
500-19999 Fatal Error The linker cannot do what was requested and it
stops immediately.
20000-
29999
Error The linker cannot do what was requested and will
eventually stop.
30000-
39999
Warning The linker can continue but the results seem
questionable.
40000-
49999
Informational This does not indicate a problem.