Restore SIGILL handler if sigprocmask fails

We've never encountered this case, but better safe then sorry.

1 files changed, 6 insertions, 0 deletions

diff --git a/gcm_simd.cpp b/gcm_simd.cpp
index ef9e2ebf..c8375f5c 100644
--- a/gcm_simd.cpp
+++ b/gcm_simd.cpp
@@ -123,7 +123,10 @@ bool CPU_ProbePMULL()
 

     volatile sigset_t oldMask;

     if (sigprocmask(0, NULLPTR, (sigset_t*)&oldMask))

+    {

+        signal(SIGILL, oldHandler);

         return false;

+    }

 

     if (setjmp(s_jmpSIGILL))

         result = false;

@@ -174,7 +177,10 @@ bool CPU_ProbePMULL()
 

     volatile sigset_t oldMask;

     if (sigprocmask(0, NULLPTR, (sigset_t*)&oldMask))

+    {

+        signal(SIGILL, oldHandler);

         return false;

+    }

 

     if (setjmp(s_jmpSIGILL))

         result = false;