# -*- 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/.

WASM_SOURCES += [
    "/memory/mozalloc/mozalloc.cpp",
    "/third_party/rlbox_wasm2c_sandbox/c_src/wasm2c_sandbox_wrapper.c",
]

LOCAL_INCLUDES += ["/third_party/wasm2c/wasm2c/"]

EXPORTS += [
    "/third_party/wasm2c/wasm2c/wasm-rt.h",
]

SOURCES += [
    "!rlbox.wasm.c",
    "/third_party/wasm2c/wasm2c/wasm-rt-impl.c",
]

# Configuration for the wasm2c runtime used by RLBox

# Use a mmap style allocation
DEFINES["WASM_RT_USE_MMAP"] = 1

# Don't use internal signal handler as Firefox already provides one
DEFINES["WASM_RT_SKIP_SIGNAL_RECOVERY"] = 1

# We provide a custom trap handler that calls MOZ_CRASH
DEFINES["WASM_RT_TRAP_HANDLER"] = "moz_wasm2c_trap_handler"

# Don't limit the nested call depth
DEFINES["WASM_RT_USE_STACK_DEPTH_COUNT"] = 0

# Configure the wasm runtime to invoke a callback when a Wasm memory growth
# fails inside the sandbox. This information is used to annotate crash reports.
DEFINES["WASM_RT_GROW_FAILED_HANDLER"] = "moz_wasm2c_memgrow_failed"


FINAL_LIBRARY = "xul"

# Allow compiler warnings both in wasm compiles (because they're third-party
# libraries), and C compiles (because they're code generated by wasm2c).
AllowCompilerWarnings()

WASM_DEFINES["MOZILLA_CLIENT"] = True
WASM_DEFINES["_WASI_EMULATED_PROCESS_CLOCKS"] = True
WASM_DEFINES["MOZ_IN_WASM_SANDBOX"] = True
if CONFIG["ENABLE_CLANG_PLUGIN"]:
    WASM_DEFINES["MOZ_CLANG_PLUGIN"] = True

SANDBOXED_WASM_LIBRARY_NAME = "rlbox.wasm"

if CONFIG["MOZ_WASM_SANDBOXING_HUNSPELL"]:
    include("/extensions/spellcheck/hunspell/src/sources.mozbuild")
    WASM_SOURCES += [
        "/extensions/spellcheck/hunspell/src/" + s for s in hunspell_sources
    ]
    LOCAL_INCLUDES += [
        "/extensions/spellcheck/hunspell/glue",
        "/extensions/spellcheck/hunspell/src",
    ]

if CONFIG["MOZ_WASM_SANDBOXING_GRAPHITE"]:
    include("/gfx/graphite2/src/sources.mozbuild")
    WASM_SOURCES += ["/gfx/graphite2/src/" + s for s in graphite_sources]
    WASM_SOURCES += [
        "/gfx/graphite2/src/call_machine.cpp",
    ]
    for k, v in graphite_defines:
        WASM_DEFINES[k] = v
    LOCAL_INCLUDES += ["/gfx/graphite2/src"]

if CONFIG["MOZ_WASM_SANDBOXING_OGG"]:
    include("/media/libogg/sources.mozbuild")
    WASM_SOURCES += ["/media/libogg/" + s for s in ogg_sources]
    LOCAL_INCLUDES += ["/media/libogg"]

if CONFIG["MOZ_WASM_SANDBOXING_EXPAT"]:
    include("/parser/expat/lib/sources.mozbuild")
    WASM_SOURCES += ["/parser/expat/lib/" + s for s in expat_sources]
    for k, v in expat_defines:
        WASM_DEFINES[k] = v
    LOCAL_INCLUDES += ["/parser/expat/lib/"]

if CONFIG["MOZ_WASM_SANDBOXING_WOFF2"]:
    include("/modules/woff2/sources.mozbuild")
    WASM_SOURCES += ["/modules/woff2/" + s for s in woff2_sources]
    LOCAL_INCLUDES += ["/modules/woff2/include"]

# Ideally we'd also list rlbox.wasm.h as an output, but that would put the
# generation in export rather than pre-compile, and we prefer the latter.
GeneratedFile(
    "rlbox.wasm.c",
    script="/config/wasm2c.py",
    entry_point="wasm2c",
    inputs=["!/dist/host/bin/wasm2c" + CONFIG["HOST_BIN_SUFFIX"], "!rlbox.wasm"],
)