Currently a SIGTRAP can denote any one of below reasons. - Breakpoint hit - H/W debug register hit - Single step - Signal sent through kill() or rasie() Architectures like powerpc/parisc provides infrastructure to demultiplex SIGTRAP signal by passing down the information for receiving SIGTRAP through si_code of siginfot_t structure. Here is an attempt is generalise this infrastructure by extending it to x86 and x86_64 archs. Signed-off-by: Srinivasa DS <srinivasa@in.ibm.com> Cc: Roland McGrath <roland@redhat.com> Cc: akpm@linux-foundation.org Cc: paulus@samba.org Cc: linuxppc-dev@ozlabs.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
		
			
				
	
	
		
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			21 lines
		
	
	
	
		
			571 B
			
		
	
	
	
		
			C
		
	
	
	
	
	
#ifndef _ASM_POWERPC_SIGINFO_H
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#define _ASM_POWERPC_SIGINFO_H
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/*
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version
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 * 2 of the License, or (at your option) any later version.
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 */
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#ifdef __powerpc64__
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#    define __ARCH_SI_PREAMBLE_SIZE	(4 * sizeof(int))
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#    define SI_PAD_SIZE32		((SI_MAX_SIZE/sizeof(int)) - 3)
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#endif
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#include <asm-generic/siginfo.h>
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#undef NSIGTRAP
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#define NSIGTRAP	4
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#endif	/* _ASM_POWERPC_SIGINFO_H */
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