build: enable maglev for Linux on s390x

PR-URL: #60863
Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Jake Yuesong Li <jake.yuesong@gmail.com>

Author: richardlau

configure.py

@@ -55,7 +55,7 @@
 valid_mips_float_abi= ('soft', 'hard')
 valid_intl_modes= ('none', 'small-icu', 'full-icu', 'system-icu')
 icu_versions=json.loads((tools_path/'icu'/'icu_versions.json').read_text(encoding='utf-8'))
-maglev_enabled_architectures= ('x64', 'arm', 'arm64')
+maglev_enabled_architectures= ('x64', 'arm', 'arm64', 's390x')
 
 # builtins may be removed later if they have been disabled by options
 shareable_builtins= {'cjs_module_lexer/lexer': 'deps/cjs-module-lexer/lexer.js',
@@ -1830,6 +1830,7 @@ def configure_v8(o, configs):
 o['variables']['v8_promise_internal_field_count'] =1# Add internal field to promises for async hooks.
 o['variables']['v8_use_siphash'] =0ifoptions.without_siphashelse1
 o['variables']['v8_enable_maglev'] =B(notoptions.v8_disable_maglevand
+flavor!='zos'and
 o['variables']['target_arch'] inmaglev_enabled_architectures)
 o['variables']['v8_enable_pointer_compression'] =1ifoptions.enable_pointer_compressionelse0
 # Using the sandbox requires always allocating array buffer backing stores in the sandbox.