* go32-nat.c (read_memory_region): Make sure the segment limit was

[external/binutils.git] / gdb / go32-nat.c

diff --git a/gdb/go32-nat.c b/gdb/go32-nat.c
index fce7a0f..b2828eb 100644 (file)
--- a/gdb/go32-nat.c
+++ b/gdb/go32-nat.c
@@ -1331,7 +1331,10 @@ read_memory_region (unsigned long addr, void *dest, size_t len)
 
          if (__dpmi_set_segment_base_address (sel, addr) != -1
              && __dpmi_set_descriptor_access_rights (sel, access_rights) != -1
-             && __dpmi_set_segment_limit (sel, segment_limit) != -1)
+             && __dpmi_set_segment_limit (sel, segment_limit) != -1
+             /* W2K silently fails to set the segment limit, leaving
+                it at zero; this test avoids the resulting crash.  */
+             && __dpmi_get_segment_limit (sel) >= segment_limit)
            movedata (sel, 0, _my_ds (), (unsigned)dest, len);
          else
            retval = 0;