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Exporting new libgomp functions
- From: Amittai Aviram <amittai dot aviram at yale dot edu>
- To: gcc-help at gcc dot gnu dot org
- Date: Wed, 12 Jan 2011 09:21:45 -0500
- Subject: Exporting new libgomp functions
I would like to define some new functions in libgomp and make these available to applications compiled with GCC with the -fopenmp flag. Suppose I want to export function void foo(void). I had thought that I could just define it in, say, foo.c, include foo.c into my build of libgomp, and provide a header file in my application with foo's signature. However, when I do this, I get a linker error that the application uses an "undefined function." I have verified that foo.o and foo.lo are in my gcc_obj build directory tree, and that the definition of "foo" does indeed occur in foo.o (i.e., I can see its disassembly using objdump -d). Now, libgomp already exports a bunch of functions, such as omp_get_thread_num, etc. How can I do the same with my new functions? Thanks!
Amittai Aviram
PhD Student in Computer Science
Yale University
646 483 2639
amittai.aviram@yale.edu
http://www.amittai.com