bsd-user/signal.c: handle_pending_signal

Handle a queued signal.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Kyle Evans <kevans@freebsd.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/bsd-user/qemu.h b/bsd-user/qemu.h
index de20650a00..02921ac8b3 100644
--- a/bsd-user/qemu.h
+++ b/bsd-user/qemu.h
@@ -99,6 +99,8 @@ typedef struct TaskState {
      * from multiple threads.)
      */
     int signal_pending;
+    /* True if we're leaving a sigsuspend and sigsuspend_mask is valid. */
+    bool in_sigsuspend;
     /*
      * This thread's signal mask, as requested by the guest program.
      * The actual signal mask of this thread may differ:
@@ -106,6 +108,11 @@ typedef struct TaskState {
      *  + sometimes we block all signals to avoid races
      */
     sigset_t signal_mask;
+    /*
+     * The signal mask imposed by a guest sigsuspend syscall, if we are
+     * currently in the middle of such a syscall
+     */
+    sigset_t sigsuspend_mask;
 
     /* This thread's sigaltstack, if it has one */
     struct target_sigaltstack sigaltstack_used;