8 files changed, 22 insertions, 28 deletions
diff --git a/lib/libc/sys/execve.2 b/lib/libc/sys/execve.2
index cdd4197..acc6471 100644
--- a/lib/libc/sys/execve.2
+++ b/lib/libc/sys/execve.2
@@ -189,8 +189,8 @@ the calling process:
 .It interval timers Ta see Xr getitimer 2
 .It resource limits Ta see Xr getrlimit 2
 .It file mode mask Ta see Xr umask 2
-.It signal mask Ta see Xr sigvec 2 ,
-.Xr sigsetmask 2
+.It signal mask Ta see Xr sigaction 2 ,
+.Xr sigprocmask 2
 .El
 .Pp
 When a program is executed as a result of an
diff --git a/lib/libc/sys/fcntl.2 b/lib/libc/sys/fcntl.2
index 250cef4..a801b60 100644
--- a/lib/libc/sys/fcntl.2
+++ b/lib/libc/sys/fcntl.2
@@ -618,7 +618,7 @@ for the reasons as stated in
 .Xr flock 2 ,
 .Xr getdtablesize 2 ,
 .Xr open 2 ,
-.Xr sigvec 2 ,
+.Xr sigaction 2 ,
 .Xr lockf 3 ,
 .Xr tcgetpgrp 3 ,
 .Xr tcsetpgrp 3
diff --git a/lib/libc/sys/getitimer.2 b/lib/libc/sys/getitimer.2
index 260f8f0..e942cc8 100644
--- a/lib/libc/sys/getitimer.2
+++ b/lib/libc/sys/getitimer.2
@@ -171,7 +171,7 @@ to be handled.
 .Sh SEE ALSO
 .Xr gettimeofday 2 ,
 .Xr select 2 ,
-.Xr sigvec 2 ,
+.Xr sigaction 2 ,
 .Xr clocks 7
 .Sh HISTORY
 The
diff --git a/lib/libc/sys/getrlimit.2 b/lib/libc/sys/getrlimit.2
index 48feea0..35198bc 100644
--- a/lib/libc/sys/getrlimit.2
+++ b/lib/libc/sys/getrlimit.2
@@ -193,7 +193,7 @@ raised the maximum limit value, and the caller is not the super-user.
 .Xr quota 1 ,
 .Xr quotactl 2 ,
 .Xr sigaltstack 2 ,
-.Xr sigvec 2 ,
+.Xr sigaction 2 ,
 .Xr sysctl 3 ,
 .Xr ulimit 3
 .Sh HISTORY
diff --git a/lib/libc/sys/sigaction.2 b/lib/libc/sys/sigaction.2
index 3b4f2f0..47b3a72 100644
--- a/lib/libc/sys/sigaction.2
+++ b/lib/libc/sys/sigaction.2
@@ -609,13 +609,9 @@ or
 .Xr kill 2 ,
 .Xr ptrace 2 ,
 .Xr sigaltstack 2 ,
-.Xr sigblock 2 ,
-.Xr sigpause 2 ,
 .Xr sigpending 2 ,
 .Xr sigprocmask 2 ,
-.Xr sigsetmask 2 ,
 .Xr sigsuspend 2 ,
-.Xr sigvec 2 ,
 .Xr wait 2 ,
 .Xr fpsetmask 3 ,
 .Xr setjmp 3 ,
diff --git a/lib/libc/sys/sigaltstack.2 b/lib/libc/sys/sigaltstack.2
index da6877e..6119c6a 100644
--- a/lib/libc/sys/sigaltstack.2
+++ b/lib/libc/sys/sigaltstack.2
@@ -28,7 +28,7 @@
 .\"     @(#)sigaltstack.2	8.2 (Berkeley) 5/1/95
 .\" $FreeBSD$
 .\"
-.Dd May 1, 1995
+.Dd May 6, 2010
 .Dt SIGALTSTACK 2
 .Os
 .Sh NAME
@@ -39,7 +39,7 @@
 .Sh SYNOPSIS
 .In signal.h
 .Bd -literal
-typedef struct sigaltstack {
+typedef struct {
         char    *ss_sp;
         size_t  ss_size;
         int     ss_flags;
@@ -51,25 +51,25 @@ typedef struct sigaltstack {
 The
 .Fn sigaltstack
 system call
-allows users to define an alternate stack on which signals
-are to be processed.
+allows defining an alternate stack on which signals
+are to be processed for the current thread.
 If
 .Fa ss
 is non-zero,
 it specifies a pointer to and the size of a
 .Em "signal stack"
-on which to deliver signals,
-and tells the system if the process is currently executing
-on that stack.
+on which to deliver signals.
 When a signal's action indicates its handler
 should execute on the signal stack (specified with a
 .Xr sigaction 2
 system call), the system checks to see
-if the process is currently executing on that stack.
-If the process is not currently executing on the signal stack,
+if the thread is currently executing on that stack.
+If the thread is not currently executing on the signal stack,
 the system arranges a switch to the signal stack for the
 duration of the signal handler's execution.
 .Pp
+An active stack cannot be modified.
+.Pp
 If
 .Dv SS_DISABLE
 is set in
@@ -78,12 +78,6 @@ is set in
 and
 .Fa ss_size
 are ignored and the signal stack will be disabled.
-Trying to disable an active stack will cause
-.Fn sigaltstack
-to return -1 with
-.Va errno
-set to
-.Er EINVAL .
 A disabled stack will cause all signals to be
 taken on the regular user stack.
 If the stack is later re-enabled then all signals that were specified
@@ -96,7 +90,7 @@ The
 .Fa ss_flags
 field will contain the value
 .Dv SS_ONSTACK
-if the process is currently on a signal stack and
+if the thread is currently on a signal stack and
 .Dv SS_DISABLE
 if the signal stack is currently disabled.
 .Sh NOTES
@@ -146,8 +140,12 @@ or
 .Fa oss
 points to memory that is not a valid part of the process
 address space.
+.It Bq Er EPERM
+An attempt was made to modify an active stack.
 .It Bq Er EINVAL
-An attempt was made to disable an active stack.
+The
+.Fa ss_flags
+field was invalid.
 .It Bq Er ENOMEM
 Size of alternate stack area is less than or equal to
 .Dv MINSIGSTKSZ .
diff --git a/lib/libc/sys/sigreturn.2 b/lib/libc/sys/sigreturn.2
index a022470..02d75a8 100644
--- a/lib/libc/sys/sigreturn.2
+++ b/lib/libc/sys/sigreturn.2
@@ -83,7 +83,7 @@ The process status longword is invalid or would improperly
 raise the privilege level of the process.
 .El
 .Sh SEE ALSO
-.Xr sigvec 2 ,
+.Xr sigaction 2 ,
 .Xr setjmp 3 ,
 .Xr ucontext 3
 .Sh HISTORY
diff --git a/lib/libc/sys/vfork.2 b/lib/libc/sys/vfork.2
index 3cd3368..1cfaa61 100644
--- a/lib/libc/sys/vfork.2
+++ b/lib/libc/sys/vfork.2
@@ -104,7 +104,7 @@ Same as for
 .Xr _exit 2 ,
 .Xr fork 2 ,
 .Xr rfork 2 ,
-.Xr sigvec 2 ,
+.Xr sigaction 2 ,
 .Xr wait 2 ,
 .Xr exit 3
 .Sh HISTORY