From a2bed43939b40ec843fd99bc9fd0d0e58124e082 Mon Sep 17 00:00:00 2001
From: Michael Brown
Date: Sun, 5 Feb 2023 22:02:05 +0000
Subject: [xen] Allow for platforms that have no Xen support

The Xen headers support only x86 and ARM.  Allow for platforms such as
LoongArch64 to build despite the absence of Xen support by providing
an architecture-specific <bits/xen.h> that simply does:

  #ifndef _BITS_XEN_H
  #define _BITS_XEN_H
  #include <ipxe/nonxen.h>
  #endif /* _BITS_XEN_H */

Signed-off-by: Michael Brown <mcb30@ipxe.org>
---
 src/include/xen/import.pl | 4 ++++
 src/include/xen/xen.h     | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

(limited to 'src/include/xen')

diff --git a/src/include/xen/import.pl b/src/include/xen/import.pl
index 9f09a77a4..12c7b0013 100755
--- a/src/include/xen/import.pl
+++ b/src/include/xen/import.pl
@@ -59,6 +59,10 @@ sub try_import_file {
     if ( /^\#include\s+[<\"](\S+)[>\"]/ ) {
       push @dependencies, catfile ( $subdir, $1 );
     }
+    # Patch "Unsupported architecture" line
+    if ( /^\#error\s+"Unsupported\sarchitecture"/ ) {
+      $_ = "#include <bits/xen.h>"
+    }
     # Write out line
     print $outfh "$_\n";
     # Apply FILE_LICENCE() immediately after include guard
diff --git a/src/include/xen/xen.h b/src/include/xen/xen.h
index 8a4b30b39..c35008aa0 100644
--- a/src/include/xen/xen.h
+++ b/src/include/xen/xen.h
@@ -19,7 +19,7 @@ FILE_LICENCE ( MIT );
 #elif defined(__arm__) || defined (__aarch64__)
 #include "arch-arm.h"
 #else
-#error "Unsupported architecture"
+#include <bits/xen.h>
 #endif
 
 #ifndef __ASSEMBLY__
-- 
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