LDP
/
man-pages
mirror of https://github.com/mkerrisk/man-pages
0
1
Fork 0
Code Releases Activity

Reformatted tables as lists; other minor reformattings and wording changes.

This commit is contained in:
Michael Kerrisk 2007-06-29 17:32:54 +00:00
parent 88276dadd8
commit 1812a94934
1 changed files with 198 additions and 102 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

300
man2/sigaction.2
View File

@ -263,111 +263,207 @@ fills in
.IR si_band " and " si_fd .
.PP
.I si_code
indicates why this signal was sent.
It is a value, not a bitmask.
The values which are possible for any signal are listed in this table:
.TS
tab(:) allbox;
c s
l l.
\fIsi_code\fR
Value:Signal origin
SI_USER:kill(2) or raise(3)
SI_KERNEL:The kernel
SI_QUEUE:sigqueue(2)
SI_TIMER:POSIX timer expired
SI_MESGQ:POSIX message queue state changed (since Linux 2.6.6)
SI_ASYNCIO:AIO completed
SI_SIGIO:queued SIGIO
SI_TKILL:tkill(2) or tgkill(2) (since Linux 2.4.19)
is a value (not a bit mask)
indicating why this signal was sent.
The following list shows the values can be placed in
.I si_code
for any signal, along with reason that the signal was generated.
.RS 4
.TP 15
.B SI_USER
.BR kill (2)
or
.BR raise (3)
.TP
.B SI_KERNEL
Sent by the kernel.
.TP
.B SI_QUEUE
.BR sigqueue (2)
.TP
.B SI_TIMER
POSIX timer expired
.TP
.B SI_MESGQ
POSIX message queue state changed (since Linux 2.6.6); see
.BR mq_notify (3)
.TP
.B SI_ASYNCIO
AIO completed
.TP
.B SI_SIGIO
queued SIGIO
.TP
.B SI_TKILL
.BR tkill (2)
or
.BR tgkill (2)
(since Linux 2.4.19)
.\" SI_DETHREAD is defined in 2.6.9 sources, but isn't implemented
.\" It appears to have been an idea that was tried during 2.5.6
.\" through to 2.5.24 and then was backed out.
.TE
.TS
tab(:) allbox;
c s
l l.
SIGILL
ILL_ILLOPC:illegal opcode
ILL_ILLOPN:illegal operand
ILL_ILLADR:illegal addressing mode
ILL_ILLTRP:illegal trap
ILL_PRVOPC:privileged opcode
ILL_PRVREG:privileged register
ILL_COPROC:coprocessor error
ILL_BADSTK:internal stack error
.TE
.TS
tab(:) allbox;
c s
l l.
SIGFPE
FPE_INTDIV:integer divide by zero
FPE_INTOVF:integer overflow
FPE_FLTDIV:floating point divide by zero
FPE_FLTOVF:floating point overflow
FPE_FLTUND:floating point underflow
FPE_FLTRES:floating point inexact result
FPE_FLTINV:floating point invalid operation
FPE_FLTSUB:subscript out of range
.TE
.TS
tab(:) allbox;
c s
l l.
SIGSEGV
SEGV_MAPERR:address not mapped to object
SEGV_ACCERR:invalid permissions for mapped object
.TE
.TS
tab(:) allbox;
c s
l l.
SIGBUS
BUS_ADRALN:invalid address alignment
BUS_ADRERR:non-existent physical address
BUS_OBJERR:object specific hardware error
.TE
.TS
tab(:) allbox;
c s
l l.
SIGTRAP
TRAP_BRKPT:process breakpoint
TRAP_TRACE:process trace trap
.TE
.TS
tab(:) allbox;
c s
l l.
SIGCHLD
CLD_EXITED:child has exited
CLD_KILLED:child was killed
CLD_DUMPED:child terminated abnormally
CLD_TRAPPED:traced child has trapped
CLD_STOPPED:child has stopped
CLD_CONTINUED:stopped child has continued (since Linux 2.6.9)
.TE
.TS
tab(:) allbox;
c s
l l.
SIGPOLL
POLL_IN:data input available
POLL_OUT:output buffers available
POLL_MSG:input message available
POLL_ERR:i/o error
POLL_PRI:high priority input available
POLL_HUP:device disconnected
.TE
.RE
.PP
The following values can be place in
.I si_code
for a
.B SIGILL
signal:
.RS 4
.TP 15
.B ILL_ILLOPC
illegal opcode
.TP
.B ILL_ILLOPN
illegal operand
.TP
.B ILL_ILLADR
illegal addressing mode
.TP
.B ILL_ILLTRP
illegal trap
.TP
.B ILL_PRVOPC
privileged opcode
.TP
.B ILL_PRVREG
privileged register
.TP
.B ILL_COPROC
coprocessor error
.TP
.B ILL_BADSTK
internal stack error
.RE
.PP
The following values can be place in
.I si_code
for a
.B SIGFPE
signal:
.RS 4
.TP 15
.B FPE_INTDIV
integer divide by zero
.TP
.B FPE_INTOVF
integer overflow
.TP
.B FPE_FLTDIV
floating point divide by zero
.TP
.B FPE_FLTOVF
floating point overflow
.TP
.B FPE_FLTUND
floating point underflow
.TP
.B FPE_FLTRES
floating point inexact result
.TP
.B FPE_FLTINV
floating point invalid operation
.TP
.B FPE_FLTSUB
subscript out of range
.RE
.PP
The following values can be place in
.I si_code
for a
.B SIGSEGV
signal:
.RS 4
.TP 15
.B SEGV_MAPERR
address not mapped to object
.TP
.B SEGV_ACCERR
invalid permissions for mapped object
.RE
.PP
The following values can be place in
.I si_code
for a
.B SIGBUS
signal:
.RS 4
.TP 15
.B BUS_ADRALN
invalid address alignment
.TP
.B BUS_ADRERR
non-existent physical address
.TP
.B BUS_OBJERR
object specific hardware error
.RE
.PP
The following values can be place in
.I si_code
for a
.B SIGTRAP
signal:
.RS 4
.TP 15
.B TRAP_BRKPT
process breakpoint
.TP
.B TRAP_TRACE
process trace trap
.RE
.PP
The following values can be place in
.I si_code
for a
.B SIGILL
signal:
.RS 4
.TP 15
.B CLD_EXITED
child has exited
.TP
.B CLD_KILLED
child was killed
.TP
.B CLD_DUMPED
child terminated abnormally
.TP
.B CLD_TRAPPED
traced child has trapped
.TP
.B CLD_STOPPED
child has stopped
.TP
.B CLD_CONTINUED
stopped child has continued (since Linux 2.6.9)
.RE
.PP
The following values can be place in
.I si_code
for a
.B SIGPOLL
signal:
.RS 4
.TP 15
.B POLL_IN
data input available
.TP
.B POLL_OUT
output buffers available
.TP
.B POLL_MSG
input message available
.TP
.B POLL_ERR
i/o error
.TP
.B POLL_PRI
high priority input available
.TP
.B POLL_HUP
device disconnected
.RE
.SH "RETURN VALUE"
.BR sigaction ()
returns 0 on success and \-1 on error.