[lld] a257616 - [LLD][MachO] Do not run Mach-O tests on big-endian hosts

[Ulrich Weigand via llvm-commits]

Author: Ulrich Weigand
Date: 2023-05-02T09:33:16+02:00
New Revision: a257616bce1ebb2b2071ee01d7d437074a63dacc

URL: https://github.com/llvm/llvm-project/commit/a257616bce1ebb2b2071ee01d7d437074a63dacc
DIFF: https://github.com/llvm/llvm-project/commit/a257616bce1ebb2b2071ee01d7d437074a63dacc.diff

LOG: [LLD][MachO] Do not run Mach-O tests on big-endian hosts

Currently, most Mach-O tests fail when executed on a big-endian host. This is
because the Mach-O back-end does not perform the necessary byte swaps when
accessing the (little-endian) binary file format.

For now, simply consider all Mach-O tests unsupported on big-endian hosts,
to enable running the test suite at all on such hosts.

Reviewed by: oontvoo

Differential Revision: https://reviews.llvm.org/D149270

Added: 
    

Modified: 
    lld/test/MachO/lit.local.cfg

Removed: 
    


################################################################################
diff  --git a/lld/test/MachO/lit.local.cfg b/lld/test/MachO/lit.local.cfg
index 929160d0c001f..08bec0a1aff19 100644
--- a/lld/test/MachO/lit.local.cfg
+++ b/lld/test/MachO/lit.local.cfg
@@ -2,6 +2,12 @@
 
 import os
 
+# FIXME: The MachO back-end currently does not respect endianness when
+# accessing binary data structures, and therefore only works correctly
+# on little-endian host systems.  Skip all tests on big-endian hosts.
+if sys.byteorder == 'big':
+    config.unsupported = True
+
 # We specify the most commonly-used archs and platform versions in our tests
 # here. Tests which need 
diff erent settings can just append to this, as only
 # the last value will be used.