Module Name:src
Committed By: kamil
Date: Sat May 25 05:11:14 UTC 2019
Modified Files:
src/share/man/man2: siginfo.2
Log Message:
Document TRAP_SCE and TRAP_SCX in siginfo(2)
To generate a diff of this commit:
cvs rdiff -u -r1.22 -r1.23 src/share/man/man2/siginfo.2
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/share/man/man2/siginfo.2
diff -u src/share/man/man2/siginfo.2:1.22 src/share/man/man2/siginfo.2:1.23
--- src/share/man/man2/siginfo.2:1.22 Fri Feb 17 01:14:31 2017
+++ src/share/man/man2/siginfo.2 Sat May 25 05:11:14 2019
@@ -1,4 +1,4 @@
-.\" $NetBSD: siginfo.2,v 1.22 2017/02/17 01:14:31 kamil Exp $
+.\" $NetBSD: siginfo.2,v 1.23 2019/05/25 05:11:14 kamil Exp $
.\"
.\" Copyright (c) 2003 The NetBSD Foundation, Inc.
.\" All rights reserved.
@@ -27,7 +27,7 @@
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
.\" POSSIBILITY OF SUCH DAMAGE.
.\"
-.Dd January 14, 2017
+.Dd May 25, 2019
.Dt SIGINFO 2
.Os
.Sh NAME
@@ -237,6 +237,10 @@ Process hardware debug register trap
Process exec trap
.It TRAP_LWP
Process LWP trap
+.It TRAP_SCE
+Process syscall entry trap
+.It TRAP_SCX
+Process syscall exit trap
.It TRAP_TRACE
Process trace trap
.El
@@ -273,9 +277,11 @@ High priority input available
.El
.Pp
For
-.Dv SIGILL , SIGFPE ,
+.Dv SIGILL ,
+.Dv SIGFPE ,
+.Dv SIGBUS
and
-.Dv SIGTRAP
+.Dv SIGSEGV
the
.Nm
structure contains the following additional members:
@@ -285,14 +291,17 @@ int si_trap;
.Ed
.Pp
.Fa si_addr
-contains the address of the faulting instruction and
+contains the address of the faulting instruction or data and
.Fa si_trap
contains a hardware specific reason.
.Pp
For
-.Dv SIGBUS
+.Dv SIGTRAP
and
-.Dv SIGSEGV
+.Dv TRAP_BRKPT ,
+.Dv TRAP_TRACE
+or
+.Dv TRAP_DBREG
the
.Nm
structure contains the following additional members:
@@ -306,10 +315,34 @@ contains the address of the faulting dat
.Fa si_trap
contains a hardware specific reason.
.Pp
-For some architectures
-the value of
-.Fa si_addr
-may be inaccurate.
+For
+.Dv SIGTRAP
+and
+.Dv TRAP_SCE
+or
+.Dv TRAP_SCX
+the
+.Nm
+structure contains the following additional members:
+.Bd -literal -offset indent
+int si_sysnum;
+int si_retval[2];
+int si_error;
+uint64_t si_args[8];
+.Ed
+.Pp
+.Fa si_sysnum
+contains the syscall number,
+.Fa si_retval
+contains the syscall return value (meaningful for
+.Dv TRAP_SCX
+only),
+.Fa si_error
+contains the syscall error value (meaningful for
+.Dv TRAP_SCX
+only) and
+.Fa si_args[8]
+contains the syscall arguments,
.Pp
For
.Dv SIGIO
@@ -374,9 +407,11 @@ extensions.
The
.Dv TRAP_CHLD ,
.Dv TRAP_DBREG ,
-.Dv TRAP_EXEC
+.Dv TRAP_EXEC ,
+.Dv TRAP_LWP ,
+.Dv TRAP_SCE
and
-.Dv TRAP_LWP
+.Dv TRAP_SCX
signal specific reasons of
.Dv SIGTRAP
are
@@ -390,9 +425,18 @@ functionality first appeared in
.Pp
.Dv TRAP_CHLD ,
.Dv TRAP_DBREG ,
-.Dv TRAP_EXEC
+.Dv TRAP_EXEC ,
+.Dv TRAP_LWP ,
+.Dv TRAP_SCE
and
-.Dv TRAP_LWP
+.Dv TRAP_SCX
first appeared
in
.Nx 8 .
+.Pp
+The additional parameters with syscall information in
+.Dv TRAP_SCE
+and
+.Dv TRAP_SCX
+first appeared in
+.Nx 9 .
