diff --git a/cfg/posix.cfg b/cfg/posix.cfg
index 29cf36052..418c238ab 100644
--- a/cfg/posix.cfg
+++ b/cfg/posix.cfg
@@ -2908,6 +2908,44 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     </arg>
     <arg nr="3"/>
   </function>
+  <!-- http://pubs.opengroup.org/onlinepubs/9699919799/functions/sigaltstack.html -->
+  <!-- int sigaltstack(const stack_t *restrict ss, stack_t *restrict oss); -->
+  <function name="sigaltstack">
+    <noreturn>false</noreturn>
+    <leak-ignore/>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <arg nr="2"/>
+  </function>
+  <!-- http://pubs.opengroup.org/onlinepubs/9699919799/functions/sigsetjmp.html -->
+  <!-- int sigsetjmp(sigjmp_buf env, int savemask); -->
+  <function name="sigsetjmp">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+	<arg nr="2">
+      <not-uninit/>
+    </arg>
+  </function>
+  <!-- http://pubs.opengroup.org/onlinepubs/9699919799/functions/sigprocmask.html -->
+  <!-- int pthread_sigmask(int how, const sigset_t *restrict set,
+       sigset_t *restrict oset);
+		int sigprocmask(int how, const sigset_t *restrict set,
+       sigset_t *restrict oset); -->
+   <function name="pthread_sigmask,sigprocmask">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+	<arg nr="2">
+      <not-uninit/>
+    </arg>
+	<arg nr="3">
+      <not-uninit/>
+    </arg>
+  </function>   
   <!-- http://man7.org/linux/man-pages/man2/getrusage.2.html-->
   <!-- int getrusage(int who, struct rusage *usage);-->
   <function name="getrusage">
@@ -3059,6 +3097,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
   <podtype name="timeval"/>
   <podtype name="timezone"/>
   <podtype name="sigaction"/>
+  <podtype name="stack_t"/>
   <podtype name="mq_attr"/>
   <podtype name="mqd_t"/>
   <podtype name="datum"/>