Re: lib/49653: tests/lib/libc/gen/t_siginfo:sigbus_adraln failed on m68k

[Tetsuya Isaki <isaki%pastel-flower.jp@localhost>]

The following reply was made to PR lib/49653; it has been noted by GNATS.

From: Tetsuya Isaki <isaki%pastel-flower.jp@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: lib-bug-people%netbsd.org@localhost,
	gnats-admin%netbsd.org@localhost,
	netbsd-bugs%netbsd.org@localhost
Subject: Re: lib/49653: tests/lib/libc/gen/t_siginfo:sigbus_adraln failed on m68k
Date: Sat, 14 Feb 2015 12:04:27 +0900

 At Tue, 10 Feb 2015 09:55:00 +0000 (UTC),
 Martin Husemann wrote:
 >  Please do not do it as a #ifdef compile time check, but use a proper sysctl
 >  variable to check at runtime.
 >  
 >  Other archtiectures use for example:
 >  
 >  	machdep.unaligned_sigbus = 1
 >  
 >  (e.g. on macppc and arm, where it depends on the concrete cpu model you are
 >  running on)
 
 I see, I agree that mine is not good way if there are two types cpu
 in an arch.
 
 Then I re-read the kernel source code (to try to implement the sysctl)
 and if my understanding is correct, sun2's arch seems "m68000" not
 "m68k". Furthermore all m68k (except sun2) seems not support 68010.
 This means that the SIGBUS never happens on all m68k.
 
 If so, how about this?
 
 Index: tests/lib/libc/gen/t_siginfo.c
 ===================================================================
 RCS file: /cvsroot/src/tests/lib/libc/gen/t_siginfo.c,v
 retrieving revision 1.27
 diff -u -r1.27 t_siginfo.c
 --- tests/lib/libc/gen/t_siginfo.c	29 Dec 2014 18:36:27 -0000	1.27
 +++ tests/lib/libc/gen/t_siginfo.c	11 Feb 2015 14:17:18 -0000
 @@ -464,6 +464,9 @@
  	if (val == 0)
  		atf_tc_skip("No SIGBUS signal for unaligned accesses");
  #endif
 +#if defined(__m68k__)
 +	atf_tc_skip("No SIGBUS signal for unaligned accesses");
 +#endif
  
  	sa.sa_flags = SA_SIGINFO;
  	sa.sa_sigaction = sigbus_action;
 
 ---
 Tetsuya Isaki <isaki%pastel-flower.jp@localhost / isaki%NetBSD.org@localhost>