This commit was generated by cvs2svn to compensate for changes in r33746,

which included commits to RCS files with non-trunk default branches.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33747 138bc75d-0d04-0410-961f-82ee72b054a4

4 files changed, 21 insertions, 8 deletions

diff --git a/boehm-gc/gcj_mlc.c b/boehm-gc/gcj_mlc.c
index ba51cbe498f..eb67eac1f36 100644
--- a/boehm-gc/gcj_mlc.c
+++ b/boehm-gc/gcj_mlc.c
@@ -282,4 +282,8 @@ DCL_LOCK_STATE;
     return((GC_PTR) op);
 }
 
+#else
+
+char GC_no_gcj_support;
+
 #endif  /* GC_GCJ_SUPPORT */
diff --git a/boehm-gc/include/gc_cpp.h b/boehm-gc/include/gc_cpp.h
index 36013e135b9..35686fc3527 100644
--- a/boehm-gc/include/gc_cpp.h
+++ b/boehm-gc/include/gc_cpp.h
@@ -255,12 +255,12 @@ inline gc_cleanup::gc_cleanup() {
     GC_finalization_proc oldProc;
     void* oldData;
     void* base = GC_base( (void *) this );
-    if (0 == base) return;
-    GC_REGISTER_FINALIZER_IGNORE_SELF( 
-        base, cleanup, (void*) ((char*) this - (char*) base), 
+    if (0 != base)  {
+      GC_REGISTER_FINALIZER_IGNORE_SELF( 
+        base, (GC_finalization_proc)cleanup, (void*) ((char*) this - (char*) base), 
         &oldProc, &oldData );
-    if (0 != oldProc) {
-        GC_REGISTER_FINALIZER_IGNORE_SELF( base, oldProc, oldData, 0, 0 );}}
+      if (0 != oldProc) {
+        GC_REGISTER_FINALIZER_IGNORE_SELF( base, oldProc, oldData, 0, 0 );}}}
 
 inline void* operator new( 
     size_t size, 
diff --git a/boehm-gc/include/private/gc_priv.h b/boehm-gc/include/private/gc_priv.h
index eabb85f0c20..ce685875549 100644
--- a/boehm-gc/include/private/gc_priv.h
+++ b/boehm-gc/include/private/gc_priv.h
@@ -1405,7 +1405,7 @@ extern GC_bool GC_objects_are_marked;	/* There are marked objects in  */
   extern GC_bool GC_incremental;
 			/* Using incremental/generational collection. */
 #else
-# define GC_incremental TRUE
+# define GC_incremental FALSE
 			/* Hopefully allow optimizer to remove some code. */
 #endif
 
diff --git a/boehm-gc/include/private/gcconfig.h b/boehm-gc/include/private/gcconfig.h
index 4c4bca31222..045617a1d7b 100644
--- a/boehm-gc/include/private/gcconfig.h
+++ b/boehm-gc/include/private/gcconfig.h
@@ -386,6 +386,11 @@
  *		to the nearest plausible page boundary, and use that instead
  *		of STACKBOTTOM.
  *
+ * Gustavo Rodriguez-Rivera points out that on most (all?) Unix machines,
+ * the value of environ is a pointer that can serve as STACKBOTTOM.
+ * I expect that HEURISTIC2 can be replaced by this approach, which
+ * interferes far less with debugging. 
+ *
  * If no expression for STACKBOTTOM can be found, and neither of the above
  * heuristics are usable, the collector can still be used with all of the above
  * undefined, provided one of the following is done:
@@ -553,6 +558,7 @@
 				/* This was 2, but that didn't sound right. */
 #     define OS_TYPE "LINUX"
 #     define HEURISTIC1
+#     define DYNAMIC_LOADING
 #     undef STACK_GRAN
 #     define STACK_GRAN 0x10000000
 	/* Stack usually starts at 0x80000000 */
@@ -990,7 +996,11 @@
 	/* this.)							*/
 #       define STACKBOTTOM ((ptr_t) 0x7b033000)  /* from /etc/conf/h/param.h */
 #   else
-#       define HEURISTIC2
+	/* Gustavo Rodriguez-Rivera suggested changing HEURISTIC2	*/
+	/* to this.  We'll probably do this on other platforms, too.	*/
+	/* For now I'll use it where I can test it.			*/
+	extern char ** environ;
+#       define STACKBOTTOM ((ptr_t)environ)
 #   endif
 #   define STACK_GROWS_UP
 #   define DYNAMIC_LOADING
@@ -1076,7 +1086,6 @@
 		/* Requires Linux 2.3.47 or later.	*/
 	extern int _end;
 #	define DATAEND (&_end)
-	/* PREFETCH appears to have a large performance impact.	*/
 #	define PREFETCH(x) \
 	  __asm__ ("	lfetch	[%0]": : "r"((void *)(x)))
 #	define PREFETCH_FOR_WRITE(x) \