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2 commits

Author SHA1 Message Date
Ley Foon Tan
baa54ab93c nios2: rework trap handler 
Redefine trap handler as below:

 0  N/A        reserved for system calls
 1  SIGUSR1    user-defined signal 1
 2  SIGUSR2    user-defined signal 2
 3  SIGILL     illegal instruction
 4..29         reserved (but implemented to raise SIGILL instead of being undefined)
30  SIGTRAP    KGDB
31  SIGTRAP    trace/breakpoint trap

Signed-off-by: Ley Foon Tan <lftan@altera.com>
 2015-04-20 11:11:14 +08:00
Ley Foon Tan
771a0163c0 nios2: Traps exception handling 
This patch contains traps exception handling.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
 2014-12-08 12:55:50 +08:00