diff options
Diffstat (limited to 'sys/kern/kern_sig.c')
| -rw-r--r-- | sys/kern/kern_sig.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/sys/kern/kern_sig.c b/sys/kern/kern_sig.c index 3f7e5d5..1e8561f 100644 --- a/sys/kern/kern_sig.c +++ b/sys/kern/kern_sig.c @@ -67,6 +67,7 @@ #include <machine/ipl.h> #include <machine/cpu.h> +#include <machine/mutex.h> #include <machine/smp.h> #define ONSIG 32 /* NSIG for osig* syscalls. XXX. */ @@ -166,6 +167,31 @@ static int sigproptbl[NSIG] = { SA_KILL, /* SIGUSR2 */ }; +/* + * Determine signal that should be delivered to process p, the current + * process, 0 if none. If there is a pending stop signal with default + * action, the process stops in issignal(). + * + * MP SAFE + */ +int +CURSIG(struct proc *p) +{ + sigset_t tmpset; + int r; + + tmpset = p->p_siglist; + SIGSETNAND(tmpset, p->p_sigmask); + if (SIGISEMPTY(p->p_siglist) || + (!(p->p_flag & P_TRACED) && SIGISEMPTY(tmpset))) { + return(0); + } + mtx_enter(&Giant, MTX_DEF); + r = issignal(p); + mtx_exit(&Giant, MTX_DEF); + return(r); +} + static __inline int sigprop(int sig) { |
