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-rw-r--r--linux-user/xtensa/target_mman.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/linux-user/xtensa/target_mman.h b/linux-user/xtensa/target_mman.h
index 3933771..c4f671a 100644
--- a/linux-user/xtensa/target_mman.h
+++ b/linux-user/xtensa/target_mman.h
@@ -14,6 +14,12 @@
#define TARGET_MAP_STACK 0x40000
#define TARGET_MAP_HUGETLB 0x80000
+/*
+ * arch/xtensa/include/asm/processor.h:
+ * TASK_UNMAPPED_BASE (TASK_SIZE / 2)
+ */
+#define TASK_UNMAPPED_BASE (1u << (TARGET_VIRT_ADDR_SPACE_BITS - 1))
+
#include "../generic/target_mman.h"
#endif