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Added definitions for evaluating the signal code argument.

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Currently the code field is only valid for SIGFPE, SIGBUS and SIGSEGV.
This commit is contained in:
mark 1996-10-14 23:02:53 +00:00
parent 06083cc7b9
commit 9ddac81db7
1 changed files with 37 additions and 1 deletions
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38
sys/arch/arm32/include/signal.h
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@ -1,4 +1,4 @@
/* $NetBSD: signal.h,v 1.3 1996/03/14 23:11:47 mark Exp $ */
/* $NetBSD: signal.h,v 1.4 1996/10/14 23:02:53 mark Exp $ */
/*
* Copyright (c) 1994-1996 Mark Brinicombe.
@ -84,6 +84,42 @@ struct sigcontext {
#endif
/* Signals codes */
/*
* SIGFPE codes
*
* see ieeefp.h for definition of FP exception codes
*/
#define SIG_CODE_FPE_CODE_MASK 0x00000f00 /* Mask for exception code */
#define SIG_CODE_FPE_CODE_SHIFT 8 /* Shift for exception code */
#define SIG_CODE_FPE_TYPE_MASK 0x000000ff /* Mask for specific code */
/*
* SIGILL codes
*
* the signal code is the instruction that raised the signal
*/
/*
* SIGBUS and SIGSEGV codes
*
* The signal code is combination of the fault address and the fault code.
*
* The fault code is the coproc #15 fault status code
*
* The exception to this is a SIGBUS or SIGSEGV from a prefetch abort.
* In this case the fault status code is not valid so the TYPE_MASK
* should be treated as undefined (in practice it is the bottom 4 bits
* of the fault address).
*/
#define SIG_CODE_BUS_ADDR_MASK 0xfffffff0
#define SIG_CODE_BUS_TYPE_MASK 0x0000000f
#define SIG_CODE_SEGV_ADDR_MASK SIG_CODE_BUS_ADDR_MASK
#define SIG_CODE_SEGV_TYPE_MASK SIG_CODE_BUS_TYPE_MASK
#endif /* _ARM_SIGNAL_H_ */
/* End of signal.h */