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Altera_Forum's avatar
Altera_Forum
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14 years ago

About exceptions: Is try, catch and thow supported?

I would like to use try-catch statements, but it does not seems to work for me. I work with Quartus II 11.0sp1 and nios II (the fpga includes a vic). When I debug what happens in my throw state...
Altera_Forum's avatar
Altera_Forum
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14 years ago

Some basic c++ exception tests for rtems rt os also fail using 11.0sp1 nios eds. Apprarently gcc uses either setjmp/longjmp or DWARF based mechanisms to unwind the stack, but I haven't yet determined which of these is used for nios2. We are building the nios2 cross compiler configuring for multi-threaded execution but I am starting to suspect that using the current state of the nios2 gcc 4 compiler with threads is sketchy as the Altera built compiler is configured for single-threaded use. We need C++ so we can port community software to the nios2.