build: add option to disable shared readonly heap

PR-URL: https://github.com/nodejs/node/pull/45887
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/configure.py b/configure.py
index 1c01c6fdb2..c1d8815fc0 100755
--- a/configure.py
+++ b/configure.py
@@ -484,6 +484,12 @@ parser.add_argument('--experimental-enable-pointer-compression',
     default=None,
     help='[Experimental] Enable V8 pointer compression (limits max heap to 4GB and breaks ABI compatibility)')
 
+parser.add_argument('--disable-shared-readonly-heap',
+    action='store_true',
+    dest='disable_shared_ro_heap',
+    default=None,
+    help='Disable the shared read-only heap feature in V8')
+
 parser.add_argument('--v8-options',
     action='store',
     dest='v8_options',
@@ -1471,7 +1477,7 @@ def configure_v8(o):
   o['variables']['v8_use_siphash'] = 0 if options.without_siphash else 1
   o['variables']['v8_enable_pointer_compression'] = 1 if options.enable_pointer_compression else 0
   o['variables']['v8_enable_31bit_smis_on_64bit_arch'] = 1 if options.enable_pointer_compression else 0
-  o['variables']['v8_enable_shared_ro_heap'] = 0 if options.enable_pointer_compression else 1
+  o['variables']['v8_enable_shared_ro_heap'] = 0 if options.enable_pointer_compression or options.disable_shared_ro_heap else 1
   o['variables']['v8_trace_maps'] = 1 if options.trace_maps else 0
   o['variables']['node_use_v8_platform'] = b(not options.without_v8_platform)
   o['variables']['node_use_bundled_v8'] = b(not options.without_bundled_v8)