tools/nolibc: move MIPS ABI validation into arch-mips.h

When installing nolibc to a sysroot arch.h is not used so its ABI check
is bypassed. This makes is possible to compile nolibc with a non O32 ABI
which may build but can not run.

Move the check into arch-mips.h so it will always be evaluated.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Willy Tarreau <w@1wt.eu>

tools/include/nolibc/arch-mips.h

@@ -10,6 +10,10 @@
 #include "compiler.h"
 #include "crt.h"
 
+#if !defined(_ABIO32)
+#error Unsupported MIPS ABI
+#endif
+
 /* Syscalls for MIPS ABI O32 :
  *   - WARNING! there's always a delayed slot!
  *   - WARNING again, the syntax is different, registers take a '$' and numbers

tools/include/nolibc/arch.h

@@ -23,7 +23,7 @@
 #include "arch-arm.h"
 #elif defined(__aarch64__)
 #include "arch-aarch64.h"
-#elif defined(__mips__) && defined(_ABIO32)
+#elif defined(__mips__)
 #include "arch-mips.h"
 #elif defined(__powerpc__)
 #include "arch-powerpc.h"