diff options
Diffstat (limited to 'lib/libc/sys/sigaltstack.2')
| -rw-r--r-- | lib/libc/sys/sigaltstack.2 | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/lib/libc/sys/sigaltstack.2 b/lib/libc/sys/sigaltstack.2 index b44db94..fe8fda5 100644 --- a/lib/libc/sys/sigaltstack.2 +++ b/lib/libc/sys/sigaltstack.2 @@ -52,7 +52,9 @@ typedef struct sigaltstack { .Ft int .Fn sigaltstack "const stack_t * restrict ss" "stack_t * restrict oss" .Sh DESCRIPTION -.Fn Sigaltstack +The +.Fn sigaltstack +system call allows users to define an alternate stack on which signals are to be processed. If @@ -66,7 +68,7 @@ on that stack. When a signal's action indicates its handler should execute on the signal stack (specified with a .Xr sigaction 2 -call), the system checks to see +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, the system arranges a switch to the signal stack for the @@ -135,7 +137,9 @@ unpredictable results may occur. .Sh RETURN VALUES .Rv -std sigaltstack .Sh ERRORS -.Fn Sigaltstack +The +.Fn sigaltstack +system call will fail and the signal stack context will remain unchanged if one of the following occurs. .Bl -tag -width Er |
