gcconfig.h: Add support for an unmapped memory hole between the end of the initialize...

	* include/private/gcconfig.h: Add support for an unmapped
	memory hole between the end of the initialized data segment
	and the start of the BSS on FreeBSD/i386.

From-SVN: r51867

diff --git a/boehm-gc/ChangeLog b/boehm-gc/ChangeLog
index 571e792..4d2af97 100644 (file)
--- a/boehm-gc/ChangeLog
+++ b/boehm-gc/ChangeLog
@@ -1,3 +1,9 @@
+2002-04-04  Loren J. Rittle  <ljrittle@acm.org>
+
+       * include/private/gcconfig.h: Add support for an unmapped
+       memory hole between the end of the initialized data segment
+       and the start of the BSS on FreeBSD/i386.
+
 2002-03-30  Krister Walfridsson  <cato@df.lth.se>
 
        * include/private/gcconfig.h: define DYNAMIC_LOADING for ELF

diff --git a/boehm-gc/include/private/gcconfig.h b/boehm-gc/include/private/gcconfig.h
index efbfc39..a3f468f 100644 (file)
--- a/boehm-gc/include/private/gcconfig.h
+++ b/boehm-gc/include/private/gcconfig.h
@@ -1058,8 +1058,16 @@
 #      ifdef __ELF__
 #          define DYNAMIC_LOADING
 #      endif
+/* Handle unmapped hole i386*-*-freebsd[45]* may put between etext and edata. */
        extern char etext[];
+       extern char edata[];
+       extern char end[];
+#      define NEED_FIND_LIMIT
 #      define DATASTART ((ptr_t)(etext))
+#      define MIN(x,y) ((x) < (y) ? (x) : (y))
+#      define DATAEND (MIN (GC_find_limit (DATASTART, TRUE), DATASTART2))
+#      define DATASTART2 ((ptr_t)(edata))
+#      define DATAEND2 ((ptr_t)(end))
 #   endif
 #   ifdef NETBSD
 #      define OS_TYPE "NETBSD"