IBM Z Software
This portal is to open public enhancement requests against IBM Z Software products. To view all of your ideas submitted to IBM, create and manage groups of Ideas, or create an idea explicitly set to be either visible by all (public) or visible only to you and IBM (private), use the IBM Unified Ideas Portal (https://ideas.ibm.com).
Shape the future of IBM!
We invite you to shape the future of IBM, including product roadmaps, by submitting ideas that matter to you the most. Here's how it works:
Search existing ideas
Start by searching and reviewing ideas and requests to enhance a product or service. Take a look at ideas others have posted, and add a comment, vote, or subscribe to updates on them if they matter to you. If you can't find what you are looking for,
Post your ideas
Post an idea.
Get feedback from the IBM team and other customers to refine your idea.
Follow the idea through the IBM Ideas process.
Specific links you will want to bookmark for future use
Welcome to the IBM Ideas Portal (https://www.ibm.com/ideas) - Use this site to find out additional information and details about the IBM Ideas process and statuses.
IBM Unified Ideas Portal (https://ideas.ibm.com) - Use this site to view all of your ideas, create new ideas for any IBM product, or search for ideas across all of IBM.
ideasibm@us.ibm.com - Use this email to suggest enhancements to the Ideas process or request help from IBM for submitting your Ideas.
Due to processing by IBM, this request was reassigned to have the following updated attributes:
Brand - Servers and Systems Software
Product family - Programming Languages
Product - C/C++ Compilers
For recording keeping, the previous attributes were:
Brand - Rational
Product family - Design & development
Product - C/C++ Compilers
The compiler is working as designed.
The reason for the linker error is because ARG_POS is defined on line 4 of TRPFM131.C and it controls the 'static' keyword in the TRPHF101.h header file. When ARG_POS is defined, the pe_cpt() function in TRPFM131.C has internal linkage. As a result, the static function is available only from the point where it is defined to the end of the current translation unit ie, it has no external linkage and it does not export any symbols. Hence, the linker complains.
Below is a reduced version of the test case:
$ cat test.cpp
static unsigned int foo();
unsigned int foo()
{
int j = 0;
for (int i=0; i<10; ++i)
j = j+i;
return 0;
}
$
$ xlC -G test.cpp -o test.so
ld: 0711-244 ERROR: No csects or exported symbols have been saved.
$
If test.cpp is modified to remove the 'static' keyword, it links fine.
Similarly, if ARG_POS is not defined in TRPFM131.C, it links fine.