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-rw-r--r--gdb/main.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/gdb/main.c b/gdb/main.c
index fd25750b94e..240aa00acfd 100644
--- a/gdb/main.c
+++ b/gdb/main.c
@@ -168,6 +168,10 @@ captured_main (void *data)
/* This needs to happen before the first use of malloc. */
init_malloc (NULL);
+#ifdef HAVE_SBRK
+ lim_at_start = (char *) sbrk (0);
+#endif
+
#if defined (ALIGN_STACK_ON_STARTUP)
i = (int) &count & 0x3;
if (i != 0)