aarch64: Fix build failure due to missing header

Including the "arm_acle.h" header in aarch64-unwind.h requires
stdint.h to be present and it may not be available during the
first stage of cross-compilation of GCC.

When cross-building GCC for the aarch64-none-linux-gnu target
(on any supporting host) using the 3-stage bootstrap build
process when we build native compiler from source, libgcc fails
to compile due to missing header that has not been installed yet.

This could be worked around but it's better to fix the issue.

libgcc/ChangeLog:

	* config/aarch64/aarch64-unwind.h (_CHKFEAT_GCS): Add.

diff --git a/libgcc/config/aarch64/aarch64-unwind.h b/libgcc/config/aarch64/aarch64-unwind.h
index 85468f9685e0660a914ede9e09eb9c92c25586c3..d11753a0e0373beb6768837b14b6be5ea33090f8 100644 (file)
--- a/libgcc/config/aarch64/aarch64-unwind.h
+++ b/libgcc/config/aarch64/aarch64-unwind.h
@@ -29,7 +29,6 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 
 #include "ansidecl.h"
 #include <stdbool.h>
-#include <arm_acle.h>
 
 #define AARCH64_DWARF_REGNUM_RA_STATE 34
 #define AARCH64_DWARF_RA_STATE_MASK   0x1
@@ -180,7 +179,7 @@ aarch64_demangle_return_addr (struct _Unwind_Context *context,
 }
 
 /* GCS enable flag for chkfeat instruction.  */
-
+#define _CHKFEAT_GCS 1
 /* SME runtime function local to libgcc, streaming compatible
    and preserves more registers than the base PCS requires, but
    we don't rely on that here.  */