2012-03-01 Basile Starynkevitch <basile@starynkevitch.net>

	MELT branch merged with trunk rev 184686 using svnmerge



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/melt-branch@184689 138bc75d-0d04-0410-961f-82ee72b054a4

6 files changed, 85 insertions, 13 deletions

diff --git a/boehm-gc/ChangeLog b/boehm-gc/ChangeLog
index e9d1eb5a6e8..fcefa849157 100644
--- a/boehm-gc/ChangeLog
+++ b/boehm-gc/ChangeLog
@@ -1,3 +1,19 @@
+2012-02-27  Jack Howarth  <howarth@bromo.med.uc.edu>
+	    Patrick Marlier  <patrick.marlier@gmail.com>
+
+	PR boehm-gc/48299
+	* testsuite/boehm-gc.c/thread_leak_test.c: Merge upstream changes.
+
+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
diff --git a/boehm-gc/testsuite/boehm-gc.c/thread_leak_test.c b/boehm-gc/testsuite/boehm-gc.c/thread_leak_test.c
index eb4cb9bd018..89014651261 100644
--- a/boehm-gc/testsuite/boehm-gc.c/thread_leak_test.c
+++ b/boehm-gc/testsuite/boehm-gc.c/thread_leak_test.c
@@ -1,13 +1,22 @@
-#define GC_LINUX_THREADS
+#ifndef GC_THREADS
+# define GC_THREADS
+#endif
 #include "leak_detector.h"
-#include <pthread.h>
+#ifdef GC_PTHREADS
+# include <pthread.h>
+#else
+# include <windows.h>
+#endif
 #include <stdio.h>
 
-void * test(void * arg) {
+#ifdef GC_PTHREADS
+  void * test(void * arg)
+#else
+  DWORD WINAPI test(LPVOID arg)
+#endif
+{
     int *p[10];
     int i;
-    GC_find_leak = 1; /* for new collect versions not compiled  */
-    /* with -DFIND_LEAK.                                        */
     for (i = 0; i < 10; ++i) {
         p[i] = malloc(sizeof(int)+i);
     }
@@ -15,23 +24,47 @@ void * test(void * arg) {
     for (i = 1; i < 10; ++i) {
         free(p[i]);
     }
-}       
+#ifdef GC_PTHREADS
+    return arg;
+#else
+    return (DWORD)(GC_word)arg;
+#endif
+}
 
 #define NTHREADS 5
 
-int main() {
+int main(void) {
     int i;
+#ifdef GC_PTHREADS
     pthread_t t[NTHREADS];
+#else
+    HANDLE t[NTHREADS];
+    DWORD thread_id;
+#endif
     int code;
 
+    GC_find_leak = 1;    /* for new collect versions not compiled       */
+    GC_INIT();
     for (i = 0; i < NTHREADS; ++i) {
-	if ((code = pthread_create(t + i, 0, test, 0)) != 0) {
-    	    printf("Thread creation failed %d\n", code);
+#ifdef GC_PTHREADS
+       code = pthread_create(t + i, 0, test, 0);
+#else
+       t[i] = CreateThread(NULL, 0, test, 0, 0, &thread_id);
+       code = t[i] != NULL ? 0 : (int)GetLastError();
+#endif
+       if (code != 0) {
+          printf("Thread creation failed %d\n", code);
         }
     }
     for (i = 0; i < NTHREADS; ++i) {
-	if ((code = pthread_join(t[i], 0)) != 0) {
-            printf("Thread join failed %lu\n", code);
+#ifdef GC_PTHREADS
+       code = pthread_join(t[i], 0);
+#else
+       code = WaitForSingleObject(t[i], INFINITE) == WAIT_OBJECT_0 ? 0 :
+                                                        (int)GetLastError();
+#endif
+       if (code != 0) {
+          printf("Thread join failed %d\n", code);
         }
     }
     CHECK_LEAKS();