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JUNE 15, 2026
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fortran

Fortran Adds Debug Functions for OpenMP Data Structures

The Fortran compiler now includes debug functions for OpenMP data structures, enabling easier inspection during debugging.

The Fortran compiler now provides debug functions (show_omp_namelist and show_omp_clauses) for inspecting OpenMP data structures. These functions were previously unusable in GDB due to a null dumpfile pointer at debug time. This commit adds debug wrappers that temporarily set dumpfile to stderr, allowing these functions to be called from GDB and facilitating debugging of OpenMP code.

In Details

The show_omp_namelist and show_omp_clauses functions could not be called from GDB because dumpfile was NULL at debug time. This commit introduces debug wrappers that temporarily set it to stderr, enabling their use during debugging.

For Context

OpenMP is a standard for writing parallel programs, allowing code to run on multiple processors simultaneously. Debugging parallel programs can be challenging, as the interactions between different threads can be complex. This commit adds debugging aids to the Fortran compiler, making it easier to inspect the data structures used by OpenMP and understand how the parallel program is behaving. This will help developers identify and fix issues in their OpenMP code.

Filed Under: fortranopenmpdebugging