2012-02-23 Patrick Marlier <patrick.marlier@gmail.com>

	    Jack Howarth  <howarth@bromo.med.uc.edu>

boehm-gc/

	PR boehm-gc/52179
	* include/gc_config.h.in: Undefine HAVE_PTHREAD_GET_STACKADDR_NP.
	* include/private/gcconfig.h (DARWIN): Define STACKBOTTOM with
	pthread_get_stackaddr_np when available.
	* configure.ac (THREADS): Check availability of pthread_get_stackaddr_np.
	* configure: Regenerate.

libjava/

	PR target/49461
	* configure.ac (SYSTEMSPEC): No longer pass -no_pie for darwin11.
	* configure: Regenerate.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@184555 138bc75d-0d04-0410-961f-82ee72b054a4

5 files changed, 35 insertions, 2 deletions

diff --git a/boehm-gc/ChangeLog b/boehm-gc/ChangeLog
index e9d1eb5a6e8..173ad8033e4 100644
--- a/boehm-gc/ChangeLog
+++ b/boehm-gc/ChangeLog
@@ -1,3 +1,13 @@
+2012-02-23  Patrick Marlier  <patrick.marlier@gmail.com>
+	    Jack Howarth  <howarth@bromo.med.uc.edu>
+
+	PR boehm-gc/52179
+	* include/gc_config.h.in: Undefine HAVE_PTHREAD_GET_STACKADDR_NP.
+	* include/private/gcconfig.h (DARWIN): Define STACKBOTTOM with
+	pthread_get_stackaddr_np when available.
+	* configure.ac (THREADS): Check availability of pthread_get_stackaddr_np.
+	* configure: Regenerate.
+
 2012-02-10  Kai Tietz  <ktietz@redhat.com>
 
 	PR boehm-gc/48514
diff --git a/boehm-gc/configure b/boehm-gc/configure
index a901e505b73..c76ea447af5 100755
--- a/boehm-gc/configure
+++ b/boehm-gc/configure
@@ -15141,6 +15141,17 @@ _ACEOF
 fi
 done
 
+for ac_func in pthread_get_stackaddr_np
+do :
+  ac_fn_c_check_func "$LINENO" "pthread_get_stackaddr_np" "ac_cv_func_pthread_get_stackaddr_np"
+if test "x$ac_cv_func_pthread_get_stackaddr_np" = x""yes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_PTHREAD_GET_STACKADDR_NP 1
+_ACEOF
+
+fi
+done
+
 LIBS="$oldLIBS"
 
 # Configuration of machine-dependent code
diff --git a/boehm-gc/configure.ac b/boehm-gc/configure.ac
index a741ca6d27a..2eddc9fe7ab 100644
--- a/boehm-gc/configure.ac
+++ b/boehm-gc/configure.ac
@@ -380,6 +380,7 @@ esac
 oldLIBS="$LIBS"
 LIBS="$LIBS $THREADLIBS"
 AC_CHECK_FUNCS([pthread_getattr_np])
+AC_CHECK_FUNCS([pthread_get_stackaddr_np])
 LIBS="$oldLIBS"
 
 # Configuration of machine-dependent code
diff --git a/boehm-gc/include/gc_config.h.in b/boehm-gc/include/gc_config.h.in
index ea6cb03d22a..6bdd807bcfa 100644
--- a/boehm-gc/include/gc_config.h.in
+++ b/boehm-gc/include/gc_config.h.in
@@ -87,6 +87,9 @@
 /* Define to 1 if you have the `pthread_getattr_np' function. */
 #undef HAVE_PTHREAD_GETATTR_NP
 
+/* Define to 1 if you have the `pthread_get_stackaddr_np_np' function. */
+#undef HAVE_PTHREAD_GET_STACKADDR_NP
+
 /* Define to 1 if you have the <stdint.h> header file. */
 #undef HAVE_STDINT_H
 
diff --git a/boehm-gc/include/private/gcconfig.h b/boehm-gc/include/private/gcconfig.h
index 25fff6e7e6a..fb09cf73cc0 100644
--- a/boehm-gc/include/private/gcconfig.h
+++ b/boehm-gc/include/private/gcconfig.h
@@ -1331,7 +1331,11 @@
 	 These aren't used when dyld support is enabled (it is by default) */
 #     define DATASTART ((ptr_t) get_etext())
 #     define DATAEND	((ptr_t) get_end())
-#     define STACKBOTTOM ((ptr_t) 0xc0000000)
+#     ifdef HAVE_PTHREAD_GET_STACKADDR_NP
+#       define STACKBOTTOM (ptr_t)pthread_get_stackaddr_np(pthread_self())
+#     else
+#       define STACKBOTTOM ((ptr_t) 0xc0000000)
+#     endif
 #     define USE_MMAP
 #     define USE_MMAP_ANON
 #     define USE_ASM_PUSH_REGS
@@ -2014,7 +2018,11 @@
 	 These aren't used when dyld support is enabled (it is by default) */
 #     define DATASTART ((ptr_t) get_etext())
 #     define DATAEND	((ptr_t) get_end())
-#     define STACKBOTTOM ((ptr_t) 0x7fff5fc00000)
+#     ifdef HAVE_PTHREAD_GET_STACKADDR_NP
+#       define STACKBOTTOM (ptr_t)pthread_get_stackaddr_np(pthread_self())
+#     else
+#       define STACKBOTTOM ((ptr_t) 0x7fff5fc00000)
+#     endif
 #     define USE_MMAP
 #     define USE_MMAP_ANON
 #     ifdef GC_DARWIN_THREADS