# -*- 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/.

FINAL_LIBRARY = "js"

if CONFIG["MOZ_SYSTEM_FFI"]:
    OS_LIBS += CONFIG["MOZ_FFI_LIBS"]
else:
    AllowCompilerWarnings()
    NoVisibilityFlags()

    CONFIGURE_DEFINE_FILES += [
        "/js/src/ctypes/libffi/fficonfig.h",
    ]
    LOCAL_INCLUDES += [
        "!/js/src/ctypes/libffi",
        "!/js/src/ctypes/libffi/include",
        "/js/src/ctypes/libffi/include",
        "/js/src/ctypes/libffi/src/%s" % CONFIG["FFI_TARGET_DIR"],
    ]

    DEFINES["TARGET"] = CONFIG["FFI_TARGET"]
    DEFINES[CONFIG["FFI_TARGET"]] = True
    DEFINES["FFI_NO_RAW_API"] = True
    DEFINES["FFI_BUILDING"] = True
    DEFINES["HAVE_AS_ASCII_PSEUDO_OP"] = True
    DEFINES["HAVE_AS_STRING_PSEUDO_OP"] = True

    if CONFIG["MOZ_DEBUG"]:
        DEFINES["FFI_DEBUG"] = True
        if not CONFIG["MOZ_NO_DEBUG_RTL"]:
            DEFINES["USE_DEBUG_RTL"] = True
        SOURCES += [
            "/js/src/ctypes/libffi/src/debug.c",
        ]

    if CONFIG["OS_TARGET"] != "WINNT":
        DEFINES["HAVE_HIDDEN_VISIBILITY_ATTRIBUTE"] = True

    if CONFIG["INTEL_ARCHITECTURE"]:
        DEFINES["HAVE_AS_X86_PCREL"] = True

    # Don't bother setting EH_FRAME_FLAGS on Windows.
    # Quoted defines confuse msvcc.sh, and the value isn't used there.
    if CONFIG["OS_TARGET"] != "WINNT":
        if CONFIG["FFI_TARGET"] == "ARM":
            DEFINES["EH_FRAME_FLAGS"] = '"aw"'
        else:
            DEFINES["EH_FRAME_FLAGS"] = '"a"'

    # Common source files.
    SOURCES += [
        "/js/src/ctypes/libffi/src/closures.c",
        "/js/src/ctypes/libffi/src/java_raw_api.c",
        "/js/src/ctypes/libffi/src/prep_cif.c",
        "/js/src/ctypes/libffi/src/raw_api.c",
        "/js/src/ctypes/libffi/src/types.c",
    ]

    # Per-platform sources and flags.
    ffi_srcs = ()
    ffi_h_defines = []
    if CONFIG["FFI_TARGET"] == "X86_WIN64":
        if CONFIG["CC_TYPE"] == "clang-cl":
            ffi_srcs = ("ffiw64.c",)
            # libffi asm needs to be preprocessed for MSVC's assembler
            GeneratedFile(
                "win64_intel.asm",
                inputs=[
                    "/js/src/ctypes/libffi/src/x86/win64_intel.S",
                    "!/js/src/ctypes/libffi/fficonfig.h",
                    "!/js/src/ctypes/libffi/include/ffi.h",
                ],
                script="preprocess_libffi_asm.py",
                flags=["$(DEFINES)", "$(LOCAL_INCLUDES)"],
            )
            SOURCES += ["!win64_intel.asm"]
        else:
            ffi_srcs = ("ffiw64.c", "win64.S")

    elif CONFIG["FFI_TARGET"] == "X86_64":
        DEFINES["HAVE_AS_X86_64_UNWIND_SECTION_TYPE"] = True
        ffi_srcs = ("ffi64.c", "unix64.S", "ffiw64.c", "win64.S")

    elif CONFIG["FFI_TARGET"] == "X86_WIN32" and CONFIG["CC_TYPE"] == "clang-cl":
        ffi_srcs = ("ffi.c",)
        # libffi asm needs to be preprocessed for MSVC's assembler
        GeneratedFile(
            "sysv_intel.asm",
            inputs=[
                "/js/src/ctypes/libffi/src/x86/sysv_intel.S",
                "!/js/src/ctypes/libffi/fficonfig.h",
                "!/js/src/ctypes/libffi/include/ffi.h",
            ],
            script="preprocess_libffi_asm.py",
            flags=["$(DEFINES)", "$(LOCAL_INCLUDES)"],
        )
        SOURCES += ["!sysv_intel.asm"]
        ASFLAGS += ["-safeseh"]

    elif CONFIG["FFI_TARGET"] == "ARM_WIN64":
        ffi_srcs = ("ffi.c",)

        # libffi asm needs to be preprocessed for MSVC's assembler
        GeneratedFile(
            "win64_armasm.asm",
            inputs=[
                "/js/src/ctypes/libffi/src/aarch64/win64_armasm.S",
                "!/js/src/ctypes/libffi/fficonfig.h",
                "!/js/src/ctypes/libffi/include/ffi.h",
            ],
            script="preprocess_libffi_asm.py",
            flags=["$(DEFINES)", "$(LOCAL_INCLUDES)"],
        )
        SOURCES += ["!win64_armasm.asm"]

    else:
        ffi_srcs = ("ffi.c", "sysv.S")

    if CONFIG["FFI_TARGET"] in ("X86_WIN32", "X86_DARWIN") and CONFIG["CC_TYPE"] in (
        "gcc",
        "clang",
    ):
        DEFINES["SYMBOL_UNDERSCORE"] = True

    if CONFIG["OS_ARCH"] == "Darwin" and CONFIG["TARGET_CPU"] in ("arm", "aarch64"):
        DEFINES["FFI_EXEC_TRAMPOLINE_TABLE"] = True
        ffi_h_defines.append("FFI_EXEC_TRAMPOLINE_TABLE")

    elif (
        CONFIG["OS_ARCH"] in ("Darwin", "FreeBSD", "GNU_kFreeBSD", "OpenBSD", "SunOS")
        or CONFIG["OS_TARGET"] == "Android"
    ):
        DEFINES["FFI_MMAP_EXEC_WRIT"] = True

    SOURCES += [
        "/js/src/ctypes/libffi/src/%s/%s" % (CONFIG["FFI_TARGET_DIR"], s)
        for s in sorted(ffi_srcs)
    ]

    GeneratedFile(
        "/js/src/ctypes/libffi/include/ffi.h",
        script="subst_header.py",
        inputs=["/js/src/ctypes/libffi/include/ffi.h.in"],
        flags=ffi_h_defines,
    )