Support GC_init (and get_stack_base) from non-main thread on NetBSD

Now GC_get_[main_]stack_base uses pthread_getattr_np() and
pthread_attr_getstack() to determine the stack base address on NetBSD.

* include/private/gcconfig.h [NETBSD && !NO_PTHREAD_GETATTR_NP]
(HAVE_PTHREAD_GETATTR_NP): Define.

diff --git a/include/private/gcconfig.h b/include/private/gcconfig.h
index 7fb63e0..faa3f09 100644 (file)
--- a/include/private/gcconfig.h
+++ b/include/private/gcconfig.h
@@ -3029,7 +3029,7 @@
 
 /* Outline pthread primitives to use in GC_get_[main_]stack_base.       */
 #if ((defined(FREEBSD) && defined(__GLIBC__)) /* kFreeBSD */ \
-     || defined(LINUX) || defined(PLATFORM_ANDROID)) \
+     || defined(LINUX) || defined(NETBSD) || defined(PLATFORM_ANDROID)) \
     && !defined(NO_PTHREAD_GETATTR_NP)
 # define HAVE_PTHREAD_GETATTR_NP 1
 #elif defined(FREEBSD) && !defined(__GLIBC__) \