js/ffi.configure
author David Teller <dteller@mozilla.com>
Thu, 25 Apr 2019 08:07:57 +0000
changeset 530129 d0eebfb3d9160645793e1ad8a04b89b76faad529
parent 510458 3f00314f0fe03d7b9166323326a136349b17b736
permissions -rw-r--r--
Bug 1545751 - In BinAST, pass Context while parsing;r=arai The Context 0.1 format specifies that the (de)compression of nodes is determined by: - its node type; - its parent type; - the index in the parent node; - whether the node is an element of an array. This patch modifies the parser generator to pass the information during parsing. Differential Revision: https://phabricator.services.mozilla.com/D28534

# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
# vim: set filetype=python:
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

@depends(target)
def force_system_ffi(target):
    # Pre-emptively move to system ffi for non-tier one platforms.
    if target.cpu not in ('x86', 'x86_64', 'arm', 'aarch64'):
        return True

imply_option('--with-system-ffi', force_system_ffi, "target")

js_option('--with-system-ffi',
          help='Use system libffi (located with pkgconfig)')

use_system_ffi = depends_if('--with-system-ffi')(lambda _: True)

system_ffi = pkg_check_modules('MOZ_FFI', 'libffi > 3.0.9',
                               when=use_system_ffi)

building_ffi = depends(system_ffi)(lambda v: v is None)

set_config('MOZ_SYSTEM_FFI', depends_if(system_ffi)(lambda _: True))

# Target selection, based on ffi/configure.ac.
@depends(target, when=building_ffi)
def ffi_target(target):
    if target.cpu not in ('x86', 'x86_64', 'arm', 'aarch64'):
        die('Building libffi from the tree is not supported on this platform. '
            'Use --with-system-ffi instead.')

    if target.os == 'WINNT':
        target_dir, target_name = {
            'x86_64': ('x86', 'X86_WIN64'),
            'x86': ('x86', 'X86_WIN32'),
            'aarch64': ('aarch64', 'ARM64_WIN64'),
        }[target.cpu]
    elif target.os == 'OSX':
        target_dir = 'x86'
        target_name = 'X86_DARWIN'
    elif target.cpu == 'arm':
        target_dir = 'arm'
        target_name = 'ARM'
    elif target.cpu == 'aarch64':
        target_dir = 'aarch64'
        target_name = 'AARCH64'
    else:
        target_dir = 'x86'
        target_name = target.cpu.upper()

    return namespace(
        name=target_name,
        dir=target_dir
    )

set_config('FFI_TARGET', ffi_target.name)
set_config('FFI_TARGET_DIR', ffi_target.dir)