Do not pthread_self when raise is called before libpthread init

* Versions (__pthread_threads): Add in GLIBC_PRIVATE.
* pthreadP.h (__pthread_threads): Declare.
* sysdeps/generic/raise.c (__pthread_threads): Make symbol weak.
(raise): Check for __pthread_threads before calling __pthread_self.

3 files changed, 4 insertions, 1 deletions

diff --git a/Versions b/Versions
index 089c6b5..4ad3c3e 100644
--- a/Versions
+++ b/Versions
@@ -142,5 +142,6 @@ libpthread {
   }
   GLIBC_PRIVATE {
     __shm_directory;
+    __pthread_threads;
   }
 }
diff --git a/pthreadP.h b/pthreadP.h
index f1fd625..97e3028 100644
--- a/pthreadP.h
+++ b/pthreadP.h
@@ -22,5 +22,6 @@
 
 extern pthread_t __pthread_self (void);
 extern int __pthread_kill (pthread_t threadid, int signo);
+extern struct __pthread **__pthread_threads;
 
 #endif	/* pthreadP.h */
diff --git a/sysdeps/generic/raise.c b/sysdeps/generic/raise.c
index cc18b39..b98cf51 100644
--- a/sysdeps/generic/raise.c
+++ b/sysdeps/generic/raise.c
@@ -24,6 +24,7 @@
 
 #pragma weak __pthread_kill
 #pragma weak __pthread_self
+#pragma weak __pthread_threads
 int
 raise (int signo)
 {
@@ -31,7 +32,7 @@ raise (int signo)
      "the effect of the raise() function shall be equivalent to
      calling: pthread_kill(pthread_self(), sig);"  */
 
-  if (__pthread_kill)
+  if (__pthread_kill && __pthread_threads)
     {
       int err;
       err = __pthread_kill (__pthread_self (), signo);