~4Dgifts/toolbox/src/swtools/tracebackCode README Two programs are contained herein, myfile.c+traceback.c and test.c. These provide alternate implementations of a function which, when called, prints a stack traceback of the calling program. They are principally useful for debugging code that has gotten into an 'interesting' location. Since the functions return normally, the application can continue to operate. myfile.c+traceback.c uses the library libexc, while the other, test.c, lets dbx do the work. /usr/include/exception.h is your best source. There's also a conference proceedings paper, mentioned in traceback.c trace.ps: "Optimally Profiling and Tracing Programs", 31 pages, 9/91
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