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moz.configure
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# -*- 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(build_project)
def js_standalone(build_project):
if build_project == "js":
return True
# Debug (see Bug 939505)
# ==============================================================
set_define("JS_DEBUG", True, when=moz_debug)
# Branding
# ==============================================================
option(
"--with-app-name",
env="MOZ_APP_NAME",
nargs=1,
help="Used for e.g. the binary program file name. If not set, "
"defaults to a lowercase form of MOZ_APP_BASENAME.",
)
@depends("--with-app-name", js_standalone, moz_app_basename)
def moz_app_name(value, js_standalone, moz_app_basename):
if value:
return value[0]
if js_standalone:
return "js"
return moz_app_basename.lower()
set_config("MOZ_APP_NAME", moz_app_name)
# SmooshMonkey (new frontend)
# ==================================================
# Define here in order to use the option from bindgen.configure.
option(
"--enable-smoosh",
default=False,
help="Enable SmooshMonkey (new JS engine frontend)",
)
@depends("--enable-smoosh")
def enable_smoosh(value):
if value:
return True
set_config("JS_ENABLE_SMOOSH", enable_smoosh)
set_define("JS_ENABLE_SMOOSH", enable_smoosh)
include("../build/moz.configure/nspr.configure", when="--enable-compile-environment")
include("../build/moz.configure/rust.configure", when="--enable-compile-environment")
include("../build/moz.configure/bindgen.configure", when="--enable-compile-environment")
set_config("JS_STANDALONE", js_standalone)
set_define("JS_STANDALONE", js_standalone)
add_old_configure_assignment("JS_STANDALONE", js_standalone)
option(
"--enable-js-shell", default=js_standalone, help="{Build|Do not build} the JS shell"
)
@depends("--enable-js-shell")
def js_disable_shell(value):
if not value:
return True
set_config("JS_DISABLE_SHELL", js_disable_shell)
set_define("JS_64BIT", depends(target)(lambda t: t.bitness == 64 or None))
set_define("JS_PUNBOX64", depends(target)(lambda t: t.bitness == 64 or None))
set_define("JS_NUNBOX32", depends(target)(lambda t: t.bitness == 32 or None))
# SpiderMonkey as a shared library, and how its symbols are exported
# ==================================================================
option(
"--disable-shared-js",
when=js_standalone,
help="{Create|Do not create} a shared library",
)
option(
"--disable-export-js",
when=js_standalone,
help="{Mark|Do not mark} JS symbols as DLL exported/visible",
)
@depends("--disable-shared-js", "--disable-export-js", when=js_standalone)
def shared_js(shared_js, export_js):
if shared_js:
if not export_js:
die("Must export JS symbols when building a shared library.")
return True
set_config("JS_SHARED_LIBRARY", shared_js)
@depends(shared_js, "--disable-export-js", when=js_standalone)
def exportable_js_api(shared_js, export_js):
if not shared_js and export_js:
return True
set_define("STATIC_EXPORTABLE_JS_API", exportable_js_api)
@depends(shared_js, exportable_js_api)
def static_js_api(shared_js, export_js):
if not shared_js and not export_js:
return True
set_define("STATIC_JS_API", static_js_api)
@depends(shared_js)
def static_js(value):
if not value:
return True
set_define("MOZ_STATIC_JS", static_js)
# Enable records and tuples
# ===================================================
option(
"--enable-record-tuple",
default=False,
help="Enable records and tuples (and disables JIT)",
)
@depends("--enable-record-tuple")
def enable_record_tuple(value):
if value:
return True
set_config("ENABLE_RECORD_TUPLE", enable_record_tuple)
set_define("ENABLE_RECORD_TUPLE", enable_record_tuple)
# Enable decorators
# ===================================================
option(
"--enable-decorators",
default=False,
help="Enable experimental JS Decorators support",
)
@depends("--enable-decorators")
def enable_decorators(value):
if value:
return True
set_config("ENABLE_DECORATORS", enable_decorators)
set_define("ENABLE_DECORATORS", enable_decorators)
# Enable explicit resource management
# ===================================================
option(
"--enable-explicit-resource-management",
default=False,
help="Enable explicit resource management",
)
@depends("--enable-explicit-resource-management")
def enable_explicit_resource_management(value):
if value:
return True
set_config("ENABLE_EXPLICIT_RESOURCE_MANAGEMENT", enable_explicit_resource_management)
set_define("ENABLE_EXPLICIT_RESOURCE_MANAGEMENT", enable_explicit_resource_management)
# Portable Baseline Intepreter
# =======================================================
option(
"--enable-portable-baseline-interp",
default=False,
help="{Enable|Disable} the portable baseline interpreter.",
)
set_define(
"ENABLE_PORTABLE_BASELINE_INTERP",
depends_if("--enable-portable-baseline-interp")(lambda _: True),
)
set_config(
"ENABLE_PORTABLE_BASELINE_INTERP",
depends_if("--enable-portable-baseline-interp")(lambda _: True),
)
# Option to always force PBL tier.
option(
"--enable-portable-baseline-interp-force",
default=False,
help="{Enable|Disable} forcing use of the portable baseline interpreter.",
)
set_define(
"ENABLE_PORTABLE_BASELINE_INTERP_FORCE",
depends_if("--enable-portable-baseline-interp-force")(lambda _: True),
)
set_config(
"ENABLE_PORTABLE_BASELINE_INTERP_FORCE",
depends_if("--enable-portable-baseline-interp-force")(lambda _: True),
)
# JIT support
# =======================================================
@depends(target, "--enable-record-tuple", "--enable-portable-baseline-interp")
def jit_default(target, enable_record_tuple, enable_portable_baseline_interp):
if enable_record_tuple:
return False
if enable_portable_baseline_interp:
return False
if target.cpu in (
"x86",
"x86_64",
"arm",
"aarch64",
"mips32",
"mips64",
"loongarch64",
):
return True
return False
option("--enable-jit", default=jit_default, help="{Enable|Disable} use of the JITs")
@deprecated_option("--enable-ion")
def report_deprecated(value):
if value:
die("--enable-ion is deprecated, use --enable-jit instead")
else:
die("--disable-ion is deprecated, use --disable-jit instead")
# JIT code simulator for cross compiles
# =======================================================
option(
"--enable-simulator",
choices=("arm", "arm64", "mips32", "mips64", "loong64", "riscv64"),
nargs=1,
help="Enable a JIT code simulator for the specified architecture",
)
@depends("--enable-jit", "--enable-simulator", target)
def simulator(jit_enabled, simulator_enabled, target):
if not jit_enabled or not simulator_enabled:
return
sim_cpu = simulator_enabled[0]
if sim_cpu in ("arm", "mips32"):
if target.cpu != "x86":
die("The %s simulator only works on x86." % sim_cpu)
if sim_cpu in ("arm64", "mips64", "loong64", "riscv64"):
if target.cpu != "x86_64" and target.cpu != "aarch64":
die("The %s simulator only works on x86-64 or arm64." % sim_cpu)
return namespace(**{sim_cpu: True})
set_config("JS_SIMULATOR", depends_if(simulator)(lambda x: True))
set_config("JS_SIMULATOR_ARM", simulator.arm)
set_config("JS_SIMULATOR_ARM64", simulator.arm64)
set_config("JS_SIMULATOR_MIPS32", simulator.mips32)
set_config("JS_SIMULATOR_MIPS64", simulator.mips64)
set_config("JS_SIMULATOR_LOONG64", simulator.loong64)
set_config("JS_SIMULATOR_RISCV64", simulator.riscv64)
set_define("JS_SIMULATOR", depends_if(simulator)(lambda x: True))
set_define("JS_SIMULATOR_ARM", simulator.arm)
set_define("JS_SIMULATOR_ARM64", simulator.arm64)
set_define("JS_SIMULATOR_MIPS32", simulator.mips32)
set_define("JS_SIMULATOR_MIPS64", simulator.mips64)
set_define("JS_SIMULATOR_LOONG64", simulator.loong64)
set_define("JS_SIMULATOR_RISCV64", simulator.riscv64)
@depends("--enable-jit", simulator, target)
def jit_codegen(jit_enabled, simulator, target):
if not jit_enabled:
return namespace(none=True)
if simulator:
return simulator
if target.cpu == "aarch64":
return namespace(arm64=True)
elif target.cpu == "x86_64":
return namespace(x64=True)
elif target.cpu == "loongarch64":
return namespace(loong64=True)
elif target.cpu == "riscv64":
return namespace(riscv64=True)
return namespace(**{str(target.cpu): True})
set_config("JS_CODEGEN_NONE", jit_codegen.none)
set_config("JS_CODEGEN_ARM", jit_codegen.arm)
set_config("JS_CODEGEN_ARM64", jit_codegen.arm64)
set_config("JS_CODEGEN_MIPS32", jit_codegen.mips32)
set_config("JS_CODEGEN_MIPS64", jit_codegen.mips64)
set_config("JS_CODEGEN_LOONG64", jit_codegen.loong64)
set_config("JS_CODEGEN_RISCV64", jit_codegen.riscv64)
set_config("JS_CODEGEN_X86", jit_codegen.x86)
set_config("JS_CODEGEN_X64", jit_codegen.x64)
set_config("JS_CODEGEN_WASM32", jit_codegen.wasm32)
set_define("JS_CODEGEN_NONE", jit_codegen.none)
set_define("JS_CODEGEN_ARM", jit_codegen.arm)
set_define("JS_CODEGEN_ARM64", jit_codegen.arm64)
set_define("JS_CODEGEN_MIPS32", jit_codegen.mips32)
set_define("JS_CODEGEN_MIPS64", jit_codegen.mips64)
set_define("JS_CODEGEN_LOONG64", jit_codegen.loong64)
set_define("JS_CODEGEN_RISCV64", jit_codegen.riscv64)
set_define("JS_CODEGEN_X86", jit_codegen.x86)
set_define("JS_CODEGEN_X64", jit_codegen.x64)
set_define("JS_CODEGEN_WASM32", jit_codegen.wasm32)
# Profiling
# =======================================================
option(
"--enable-instruments",
env="MOZ_INSTRUMENTS",
help="Enable instruments remote profiling",
)
@depends("--enable-instruments", target)
def instruments(value, target):
if value and target.os != "OSX":
die("--enable-instruments cannot be used when targeting %s", target.os)
if value:
return True
set_config("MOZ_INSTRUMENTS", instruments)
set_define("MOZ_INSTRUMENTS", instruments)
imply_option("--enable-profiling", instruments, reason="--enable-instruments")
option("--enable-callgrind", env="MOZ_CALLGRIND", help="Enable callgrind profiling")
@depends("--enable-callgrind")
def callgrind(value):
if value:
return True
set_define("MOZ_CALLGRIND", callgrind)
imply_option("--enable-profiling", callgrind)
@depends(milestone)
def enable_profiling(milestone):
return milestone.is_nightly
option(
"--enable-profiling",
env="MOZ_PROFILING",
default=enable_profiling,
help="{Set|Do not set} compile flags necessary for using sampling "
"profilers (e.g. shark, perf)",
)
@depends("--enable-profiling")
def profiling(value):
if value:
return True
with only_when("--enable-compile-environment"):
imply_option("--enable-frame-pointers", True, when=profiling)
@depends(profiling, target)
def imply_vtune(value, target):
ok_cpu = target.cpu in ["x86", "x86_64"]
ok_kernel = target.kernel == "WINNT" or (
target.kernel == "Linux" and target.os == "GNU"
)
if value and ok_cpu and ok_kernel:
return True
set_config("MOZ_PROFILING", profiling)
set_define("MOZ_PROFILING", profiling)
imply_option("--enable-vtune", imply_vtune, reason="--enable-profiling")
@depends(milestone)
def enable_execution_tracing(milestone):
return milestone.is_nightly
option(
"--enable-execution-tracing",
env="MOZ_EXECUTION_TRACING",
default=enable_execution_tracing,
help="{Set|Do not set} compile flags necessary for running the JS "
"execution tracer",
)
@depends("--enable-execution-tracing")
def execution_tracing(value):
if value:
return True
set_config("MOZ_EXECUTION_TRACING", execution_tracing)
set_define("MOZ_EXECUTION_TRACING", execution_tracing)
option("--enable-vtune", env="MOZ_VTUNE", help="Enable VTune profiling")
@depends("--enable-vtune")
def vtune(value):
if value:
return True
set_config("MOZ_VTUNE", vtune)
set_define("MOZ_VTUNE", vtune)
option(
"--enable-gc-probes",
env="JS_GC_PROBES",
help="Turn on probes for allocation and finalization",
)
@depends("--enable-gc-probes")
def gc_probes(value):
if value:
return True
set_define("JS_GC_PROBES", gc_probes)
option(
"--enable-gczeal",
default=depends(when=moz_debug)(lambda: True),
help="{Enable|Disable} zealous GCing",
)
set_define("JS_GC_ZEAL", depends_if("--enable-gczeal")(lambda _: True))
# Enable breakpoint for artificial OOMs
# =======================================================
option(
"--enable-oom-breakpoint", help="Enable a breakpoint function for artificial OOMs"
)
set_define("JS_OOM_BREAKPOINT", depends_if("--enable-oom-breakpoint")(lambda _: True))
option("--enable-perf", env="JS_ION_PERF", help="Enable Linux perf integration")
@depends("--enable-perf", target)
def ion_perf(value, target):
is_linux = target.kernel == "Linux"
is_mac = target.kernel == "Darwin" and target.os == "OSX"
if value and (is_linux or is_mac):
return True
set_define("JS_ION_PERF", ion_perf)
option(
"--enable-jitspew",
default=depends(when=moz_debug)(lambda: True),
help="{Enable|Disable} the Jit spew and IONFLAGS environment " "variable",
)
set_define("JS_JITSPEW", depends_if("--enable-jitspew")(lambda _: True))
set_config("JS_JITSPEW", depends_if("--enable-jitspew")(lambda _: True))
# Also enable the structured spewer
set_define("JS_STRUCTURED_SPEW", depends_if("--enable-jitspew")(lambda _: True))
set_config("JS_STRUCTURED_SPEW", depends_if("--enable-jitspew")(lambda _: True))
@depends("--enable-jit", "--enable-jitspew", simulator, target, moz_debug)
def jit_disasm_arm(jit_enabled, spew, simulator, target, debug):
if not jit_enabled:
return
if simulator and (debug or spew):
if getattr(simulator, "arm", None):
return True
if target.cpu == "arm" and (debug or spew):
return True
set_config("JS_DISASM_ARM", jit_disasm_arm)
set_define("JS_DISASM_ARM", jit_disasm_arm)
@depends("--enable-jit", "--enable-jitspew", simulator, target, moz_debug)
def jit_disasm_riscv(jit_enabled, spew, simulator, target, debug):
if not jit_enabled:
return
if simulator and (debug or spew):
if getattr(simulator, "riscv64", None):
return True
if target.cpu == "riscv64" and (debug or spew):
return True
set_config("JS_DISASM_RISCV64", jit_disasm_riscv)
set_define("JS_DISASM_RISCV64", jit_disasm_riscv)
@depends("--enable-jit", "--enable-jitspew", simulator, target, moz_debug)
def jit_disasm_arm64(jit_enabled, spew, simulator, target, debug):
if not jit_enabled:
return
if simulator and (debug or spew):
if getattr(simulator, "arm64", None):
return True
if target.cpu == "aarch64" and (debug or spew):
return True
set_config("JS_DISASM_ARM64", jit_disasm_arm64)
set_define("JS_DISASM_ARM64", jit_disasm_arm64)
# When enabled, masm will generate assumeUnreachable calls that act as
# assertions in the generated code. This option is worth disabling when you
# have to track mutated values through the generated code, to avoid constantly
# dumping registers on and off the stack.
option(
"--enable-masm-verbose",
default=depends(when=moz_debug)(lambda: True),
help="{Enable|Disable} MacroAssembler verbosity of generated code.",
)
set_define("JS_MASM_VERBOSE", depends_if("--enable-masm-verbose")(lambda _: True))
set_config("JS_MASM_VERBOSE", depends_if("--enable-masm-verbose")(lambda _: True))
# Architecture feature flags
# =======================================================
# Apple silicon does not seem to have any way to query the OS for the JSCVT
# flag stored in the ID_AA64ISAR1_EL1 system register. In the mean time, we
# hard code the value of the JSCVT flag which guards the implementation of
# FJCVTZS instruction as part of ARMv8.3-JSConv.
@depends(target)
def is_apple_silicon(target):
return target.kernel == "Darwin" and target.cpu == "aarch64"
option(
"--enable-arm64-fjcvtzs",
default=is_apple_silicon,
help="{Enable|Disable} static use of FJCVTZS instruction on Aarch64 targets.",
)
# The "ARM Architecture Reference Manual" for ARMv8 defines the JSCVT flag as
# being a 4 bit integer (D12.2.52) and it can be manipulated using >= operator
# (D12.1.4).
#
# The FJCVTZS instruction is implemented if ID_AA64ISAR1_EL1.JSCVT >= 1.
@depends("--enable-arm64-fjcvtzs", target, simulator)
def aarch64_jscvt(fjcvtzs, target, simulator):
if target.cpu == "aarch64" and fjcvtzs:
return 1
if simulator and getattr(simulator, "arm64", False) and fjcvtzs:
return 1
return 0
set_define("MOZ_AARCH64_JSCVT", aarch64_jscvt)
@depends(target)
def has_apple_fast_wx(target):
return target.kernel == "Darwin" and target.cpu == "aarch64"
# On Apple Silicon macOS we use MAP_JIT with pthread_jit_write_protect_np to
# implement JIT code write protection, while on iOS we use MAP_JIT with
# be_memory_inline_jit_restrict_*.
set_define("JS_USE_APPLE_FAST_WX", True, when=has_apple_fast_wx)
# CTypes
# =======================================================
@depends(js_standalone)
def ctypes_default(js_standalone):
return not js_standalone
option("--enable-ctypes", default=ctypes_default, help="{Enable|Disable} js-ctypes")
build_ctypes = depends_if("--enable-ctypes")(lambda _: True)
set_config("BUILD_CTYPES", build_ctypes)
set_define("BUILD_CTYPES", build_ctypes)
set_config("JS_HAS_CTYPES", build_ctypes)
set_define("JS_HAS_CTYPES", build_ctypes)
@depends("--enable-ctypes", "--enable-compile-environment")
def ctypes_and_compile_environment(ctypes, compile_environment):
return ctypes and compile_environment
include("ffi.configure", when=ctypes_and_compile_environment)
# Enable pipeline operator
# ===================================================
option("--enable-pipeline-operator", default=False, help="Enable pipeline operator")
@depends("--enable-pipeline-operator")
def enable_pipeline_operator(value):
if value:
return True
set_config("ENABLE_PIPELINE_OPERATOR", enable_pipeline_operator)
set_define("ENABLE_PIPELINE_OPERATOR", enable_pipeline_operator)
# SIMD acceleration for encoding_rs
# ==============================================================
option(
"--enable-rust-simd", env="MOZ_RUST_SIMD", help="Enable explicit SIMD in Rust code."
)
@depends("--enable-rust-simd", target)
def rust_simd(value, target):
# As of 2019-09-17, the simd-accel feature of encoding_rs has not
# been properly set up outside aarch64, armv7, x86 and x86_64.
if target.cpu in ("aarch64", "arm", "x86", "x86_64") and value:
return True
set_config("MOZ_RUST_SIMD", rust_simd)
set_define("MOZ_RUST_SIMD", rust_simd)
# Telemetry to measure compile time and generated-code runtime
# ============================================================
option(
"--enable-spidermonkey-telemetry",
default=milestone.is_nightly,
help="{Enable|Disable} performance telemetry for SpiderMonkey (e.g. compile and run times)",
)
set_define(
"ENABLE_SPIDERMONKEY_TELEMETRY",
depends_if("--enable-spidermonkey-telemetry")(lambda x: True),
)
# Support for debugging code generated by wasm backends
# =====================================================
option(
"--enable-wasm-codegen-debug",
default=depends(when=moz_debug)(lambda: True),
help="{Enable|Disable} debugging for wasm codegen",
)
set_config(
"WASM_CODEGEN_DEBUG", depends_if("--enable-wasm-codegen-debug")(lambda x: True)
)
set_define(
"WASM_CODEGEN_DEBUG", depends_if("--enable-wasm-codegen-debug")(lambda x: True)
)
# WebAssembly feature flags
# ==================================================
option(
"--wasm-no-experimental",
default=False,
help="Force disable all wasm experimental features for testing.",
)
# Support for WebAssembly tail-calls.
# ===========================
@depends(target)
def default_wasm_tail_calls(target):
if target.cpu in ("x86", "x86_64", "arm", "aarch64", "loongarch64", "mips64"):
return True
option(
"--enable-wasm-tail-calls",
default=default_wasm_tail_calls,
help="{Enable|Disable} WebAssembly tail-calls",
)
@depends("--enable-wasm-tail-calls", target)
def wasm_tail_calls(value, target):
if not value:
return
if target.cpu in ("x86", "x86_64", "arm", "aarch64", "loongarch64", "mips64"):
return True
die(
"--enable-wasm-tail-calls only possible when targeting the x86_64/x86/arm64/arm/loongarch64/mips64 jits"
)
set_config("ENABLE_WASM_TAIL_CALLS", wasm_tail_calls)
set_define("ENABLE_WASM_TAIL_CALLS", wasm_tail_calls)
# Support for WebAssembly GC.
# ===========================
option("--disable-wasm-gc", default=True, help="{Enable|Disable} WebAssembly GC")
@depends("--disable-wasm-gc")
def wasm_gc(value):
if not value:
return
return True
set_config("ENABLE_WASM_GC", wasm_gc)
set_define("ENABLE_WASM_GC", wasm_gc)
# Support for JS PI spec.
# ===========================
@depends(
milestone.is_nightly,
"--enable-jit",
"--enable-simulator",
"--enable-wasm-gc",
"--enable-wasm-tail-calls",
target,
)
def default_wasm_jspi(
is_nightly,
jit_enabled,
simulator,
gc,
tail_calls,
target,
):
if not jit_enabled:
return
if not gc or not tail_calls:
return
if not is_nightly:
return
if simulator:
return simulator[0] == "arm64" or simulator[0] == "arm"
if target.cpu in ("x86_64", "x86", "aarch64", "arm", "loongarch64"):
return True
option(
"--enable-wasm-jspi",
default=default_wasm_jspi,
help="{Enable|Disable} WebAssembly JS PI",
)
@depends(
"--enable-wasm-jspi",
"--enable-jit",
"--enable-simulator",
"--enable-wasm-gc",
"--enable-wasm-tail-calls",
"--wasm-no-experimental",
target,
)
def wasm_jspi(value, jit_enabled, simulator, gc, tail_calls, no_experimental, target):
if no_experimental or not value:
return
if not jit_enabled:
die("--enable-wasm-jspi requires --enable-jit")
if not gc:
die("--enable-wasm-jspi requires --enable-wasm-gc")
if not tail_calls:
die("--enable-wasm-jspi requires --enable-wasm-tail-calls")
if simulator and not (simulator[0] == "arm64" or simulator[0] == "arm"):
die("--enable-wasm-jspi is only supported for arm64/arm simulators")
if target.cpu in ("x86_64", "x86", "aarch64", "arm", "loongarch64"):
return True
die(
"--enable-wasm-jspi only possible when targeting the x86_64/x86/arm64/arm/loongarch64 jits"
)
set_config("ENABLE_WASM_JSPI", wasm_jspi)
set_define("ENABLE_WASM_JSPI", wasm_jspi)
# Support for WebAssembly JS String Builtins
# ==========================================
option(
"--disable-wasm-js-string-builtins",
default=True,
help="{Enable|Disable} WebAssembly JS String Builtins",
)
@depends("--disable-wasm-js-string-builtins", "--wasm-no-experimental")
def wasm_js_string_builtins(value, no_experimental):
if no_experimental or not value:
return
return True
set_config("ENABLE_WASM_JS_STRING_BUILTINS", wasm_js_string_builtins)
set_define("ENABLE_WASM_JS_STRING_BUILTINS", wasm_js_string_builtins)
# Support for WebAssembly shared memory and atomics.
#
# This affects the JS shell only.
# =====================================================
option(
"--disable-shared-memory", help="Disable JS/WebAssembly shared memory and atomics"
)
@depends("--disable-shared-memory")
def enable_shared_memory(value):
if value:
return True
set_config("ENABLE_SHARED_MEMORY", enable_shared_memory)
set_define("ENABLE_SHARED_MEMORY", enable_shared_memory)
# Support for WebAssembly SIMD
# =====================================================
@depends("--enable-jit", "--enable-simulator", target)
def default_wasm_simd(jit_enabled, simulator, target):
if not jit_enabled:
return
if simulator and (simulator[0] != "arm64"):
return
if target.cpu in ("x86_64", "x86", "aarch64"):
return True
option(
"--enable-wasm-simd",
default=default_wasm_simd,
help="{Enable|Disable} WebAssembly SIMD",
)
@depends(
"--enable-wasm-simd",
"--enable-jit",
"--enable-simulator",
target,
"--wasm-no-experimental",
)
def wasm_simd(value, jit_enabled, simulator, target, no_experimental):
if no_experimental or not value:
return
if not jit_enabled:
die("--enable-wasm-simd requires --enable-jit")
if simulator and (simulator[0] != "arm64"):
die("--enable-wasm-simd is not supported for simulators, except arm64")
if target.cpu in ("x86_64", "x86", "aarch64"):
return True
die("--enable-wasm-simd only possible when targeting the x86_64/x86/arm64 jits")
set_config("ENABLE_WASM_SIMD", wasm_simd)
set_define("ENABLE_WASM_SIMD", wasm_simd)
# Whether to check for field changes in WebAssembly serialization
#
# See the comment for 'WASM_VERIFY_SERIALIZATION_FOR_SIZE' in WasmSerialize.cpp
# for more background.
# =====================================================================
@depends(
target,
c_compiler,
moz_debug,
milestone,
"--wasm-no-experimental",
)
def wasm_verify_serialization_for_size(
target, c_compiler, debug, milestone, no_experimental
):
if (
debug == True
and target.kernel == "Linux"
and target.cpu == "x86_64"
and c_compiler
and c_compiler.type == "clang"
and milestone.is_nightly
and not no_experimental
):
return True
return
set_define(
"ENABLE_WASM_VERIFY_SERIALIZATION_FOR_SIZE", wasm_verify_serialization_for_size
)
# Support for Intel AVX instruction.
#
# AVX is exclusively used in WebAssembly SIMD instructions at the moment:
# set direct dependency on "--enable-wasm-simd".
# =====================================================
@depends("--enable-wasm-simd", "--enable-simulator", target)
def default_wasm_avx(wasm_simd_enabled, simulator, target):
if not wasm_simd_enabled:
return
if simulator:
return