POSIX siginfo
From: David Xu (bsddiy_at_126.com)
Date: 10/13/05
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Date: Thu, 13 Oct 2005 11:23:19 +0800 To: arch@freebsd.org
I am trying to implement POSIX sigqueue, while staring some code
in machdep.c and trap.c, I found our si_code for siginfo structure
is not in POSIX standard, all are machine dependent magical values
pushed by CPU. POSIX lists all these standard codes:
http://www.opengroup.org/onlinepubs/009695399/basedefs/signal.h.html
/* codes for SIGILL */
ILL_ILLOPC
ILL_ILLOPN
ILL_ILLADR
ILL_ILLTRP
ILL_PRVOPC
ILL_PRVREG
ILL_COPROC
ILL_BADSTK
/* codes for SIGBUS */
BUS_ADRALN
BUS_ADRERR
BUS_OBJERR
BUS_RESERVED
/* codes for SIGSEGV */
SEGV_MAPERR
SEGV_ACCERR
/* codes for SIGFPE */
FPE_INTOVF 1
FPE_INTDIV 2
FPE_FLTDIV 3
FPE_FLTOVF 4
FPE_FLTUND 5
FPE_FLTRES 6
FPE_FLTINV 7
FPE_FLTSUB 8
/* codes for SIGTRAP */
TRAP_BRKPT
TRAP_TRACE
...
Note that, NetBSD and Linux had already used the POSIX codes, should we
use them too?
David Xu
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- Previous message: Poul-Henning Kamp: "Re: [RFC] Teaching mount(8) to use nmount()"
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