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-rw-r--r--linux-user/sparc64/syscall.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/linux-user/sparc64/syscall.h b/linux-user/sparc64/syscall.h
index 81a816de94..e60bf311c0 100644
--- a/linux-user/sparc64/syscall.h
+++ b/linux-user/sparc64/syscall.h
@@ -8,3 +8,10 @@ struct target_pt_regs {
};
#define UNAME_MACHINE "sun4u"
+
+/* SPARC kernels don't define this in their Kconfig, but they have the
+ * same ABI as if they did, implemented by sparc-specific code which fishes
+ * directly in the u_regs() struct for half the parameters in sparc_do_fork()
+ * and copy_thread().
+ */
+#define TARGET_CLONE_BACKWARDS