Source code
Revision control
Copy as Markdown
Other Tools
# -*- 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
@depends(build_project)
def js_standalone(build_project):
if build_project == "js":
return True
# ==============================================================
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=milestone.is_nightly,
help="{Enable|Disable} 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))
# Enable perf jitdump integration for nightly.
# The following must be true for jitdump to be enabled:
# (a) --disable-jitdump was not provided.
# (b) target is Linux or Mac
# (c) milestone is a nightly build
# =======================================================
option(
"--enable-jitdump",
default=milestone.is_nightly,
help="{Enable|Disable} perf jitdump integration",
)
@depends("--enable-jitdump", target)
def ion_perf(enable_jitdump, target):
is_linux_or_mac = target.kernel == "Linux" or (
target.kernel == "Darwin" and target.os == "OSX"
)
if enable_jitdump and is_linux_or_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 JS PI spec.
# ===========================
@depends(
milestone.is_nightly,
"--enable-jit",
"--enable-simulator",
target,
)
def default_wasm_jspi(
is_nightly,
jit_enabled,
simulator,
target,
):
if not jit_enabled:
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",
"--wasm-no-experimental",
target,
)
def wasm_jspi(value, jit_enabled, simulator, no_experimental, target):
if no_experimental or not value:
return
if not jit_enabled:
die("--enable-wasm-jspi requires --enable-jit")
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")
def wasm_js_string_builtins(value):
if 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
if target.cpu in ("x86_64", "x86"):
return True
option(
"--enable-wasm-avx",
default=default_wasm_avx,
help="{Enable|Disable} AVX support for WebAssembly SIMD",
)
@depends(
"--enable-wasm-avx",
"--enable-wasm-simd",
"--enable-simulator",
target,
"--wasm-no-experimental",
)
def wasm_avx(value, wasm_simd_enabled, simulator, target, no_experimental):
if no_experimental or not value:
return
if not wasm_simd_enabled:
die("--enable-wasm-avx requires --enable-wasm-simd")
if simulator:
die("--enable-wasm-avx is not supported for simulators")
if target.cpu in ("x86_64", "x86"):
return True
die("--enable-wasm-avx only possible when targeting the x86_64/x86 jits")
set_config("ENABLE_WASM_AVX", wasm_avx)
set_define("ENABLE_WASM_AVX", wasm_avx)
# Support for WebAssembly relaxed SIMD
# =====================================================
@depends(milestone.is_nightly, "--enable-wasm-simd")
def default_wasm_relaxed_simd(is_nightly, wasm_simd):
if is_nightly and wasm_simd:
return True
option(
"--enable-wasm-relaxed-simd",
default=default_wasm_relaxed_simd,
help="{Enable|Disable} WebAssembly relaxed SIMD",
)
@depends("--enable-wasm-relaxed-simd", "--enable-wasm-simd", "--wasm-no-experimental")
def wasm_relaxed_simd(value, wasm_simd, no_experimental):
if no_experimental or not value:
return
if not wasm_simd:
die("relaxed SIMD requires SIMD")
return True
set_config("ENABLE_WASM_RELAXED_SIMD", wasm_relaxed_simd)
set_define("ENABLE_WASM_RELAXED_SIMD", wasm_relaxed_simd)
# Support for WebAssembly intgemm private intrinsics
# =====================================================
@depends(target)
def default_wasm_moz_intgemm(target):
return target.cpu in ("x86", "x86_64", "aarch64")
option(
"--enable-wasm-moz-intgemm",
default=default_wasm_moz_intgemm,
help="{Enable|Disable} WebAssembly intgemm private intrinsics",
)
@depends("--enable-wasm-moz-intgemm", "--wasm-no-experimental")
def wasm_moz_intgemm(value, no_experimental):
if no_experimental:
return
if value:
return True
set_config("ENABLE_WASM_MOZ_INTGEMM", wasm_moz_intgemm)
set_define("ENABLE_WASM_MOZ_INTGEMM", wasm_moz_intgemm)
# Support for WebAssembly Memory64.
# ===========================
@depends("--enable-simulator", target)
def default_wasm_memory64(simulator, target):
if target.cpu == "mips32":
return
if simulator and simulator[0] == "mips32":
return
return True
option(
"--enable-wasm-memory64",
default=default_wasm_memory64,
help="{Enable|Disable} WebAssembly Memory64",
)
@depends("--enable-wasm-memory64", "--enable-simulator", target)
def wasm_memory64(value, simulator, target):
if not value:
return
if target.cpu == "mips32":
die("Memory64 is incompatible with MIPS32 target")
if simulator and simulator[0] == "mips32":
die("Memory64 is incompatible with MIPS32 simulator")
return True
set_config("ENABLE_WASM_MEMORY64", wasm_memory64)
set_define("ENABLE_WASM_MEMORY64", wasm_memory64)
# Support for WebAssembly memory control.
# ===========================
@depends(milestone.is_nightly)
def default_wasm_memory_control(is_nightly):
if is_nightly:
return True
option(
"--enable-wasm-memory-control",
default=default_wasm_memory_control,
help="{Enable|Disable} WebAssembly fine-grained memory control instructions",
)
@depends("--enable-wasm-memory-control", "--wasm-no-experimental")
def wasm_memory_control(value, no_experimental):
if no_experimental or not value:
return
return True
set_config("ENABLE_WASM_MEMORY_CONTROL", wasm_memory_control)
set_define("ENABLE_WASM_MEMORY_CONTROL", wasm_memory_control)
# Support for WebAssembly Multi Memory.
# =====================================
option(
"--disable-wasm-multi-memory",
help="{Enable|Disable} WebAssembly multi-memory",
)
@depends("--disable-wasm-multi-memory")
def wasm_multi_memory(value):
if value:
return True
set_config("ENABLE_WASM_MULTI_MEMORY", wasm_multi_memory)
set_define("ENABLE_WASM_MULTI_MEMORY", wasm_multi_memory)
# Support for WebAssembly Branch-hinting.
# ===========================
@depends(milestone.is_nightly)
def default_wasm_branch_hinting(is_nightly):
if is_nightly:
return True
option(
"--enable-wasm-branch-hinting",
default=default_wasm_branch_hinting,
help="{Enable|Disable} WebAssembly Branch hints",
)
@depends("--enable-wasm-branch-hinting", "--wasm-no-experimental")
def wasm_branch_hinting(value, no_experimental):
if no_experimental or not value:
return
return True
set_config("ENABLE_WASM_BRANCH_HINTING", wasm_branch_hinting)
set_define("ENABLE_WASM_BRANCH_HINTING", wasm_branch_hinting)
# Options for generating the shell as a script
# ============================================
option("--with-qemu-exe", nargs=1, help="Use path as an arm emulator on host platforms")
set_config("QEMU_EXE", depends_if("--with-qemu-exe")(lambda x: x))
option(
"--with-cross-lib",
nargs=1,
default=depends(target.alias)(lambda x: "/usr/%s" % x),
help="Use dir as the location for arm libraries",
)
set_config("CROSS_LIB", depends_if("--with-cross-lib")(lambda x: x))
# Enable static checking using sixgill
# ====================================
option("--with-sixgill", nargs=1, help="Enable static checking of code using sixgill")
@depends_if("--with-sixgill")
@imports("os")
def sixgill(value):
for f in ("bin/xdbfind", "gcc/xgill.so", "scripts/wrap_gcc/g++"):
if not os.path.exists(os.path.join(value[0], f)):
die("The sixgill plugin and binaries are not at the specified path")
return value[0]
set_config("SIXGILL_PATH", sixgill)
# Support for readline
# =====================================================
@depends("--enable-js-shell", target_is_windows, compile_environment, target)
def editline(js_shell, is_windows, compile_environment, target):
return js_shell and not is_windows and compile_environment and (target.os != "WASI")
option(
"--enable-readline", help="Link js shell to system readline library", when=editline
)
has_readline = check_symbol(
"readline",
flags=["-lreadline"],
when="--enable-readline",
onerror=lambda: die("No system readline library found"),
)
set_config("EDITLINE_LIBS", ["-lreadline"], when=has_readline)
@depends("--enable-readline", editline, when=editline)
def bundled_editline(readline, editline):
return editline and not readline
set_config("JS_BUNDLED_EDITLINE", bundled_editline)
set_define("EDITLINE", True, when=editline)
# JIT observers
# =============
option(
"--with-jitreport-granularity",
default="3",
choices=("0", "1", "2", "3"),
help="Default granularity at which to report JIT code to external tools "
"(0 - no info, 1 - code ranges for while functions only, "
"2 - per-line information, 3 - per-op information)",
)
set_define(
"JS_DEFAULT_JITREPORT_GRANULARITY",
depends_if("--with-jitreport-granularity")(lambda value: value[0]),
)
# ECMAScript Internationalization API Support (uses ICU)
# ======================================================
system_lib_option(
"--with-system-icu",
help="Use system ICU",
when=use_pkg_config,
)
@depends("--with-system-icu", when=use_pkg_config)
def enable_system_icu_option(enable_system_icu):
return enable_system_icu
system_icu = pkg_check_modules("MOZ_ICU", "icu-i18n >= 73.1", when="--with-system-icu")
@depends(enable_system_icu_option)
def in_tree_icu(system_icu):
return not system_icu
# Set MOZ_ICU_CFLAGS to an explicit empty value when --with-system-icu is *not* used,
# for layout/style/extra-bindgen-flags
set_config("MOZ_ICU_CFLAGS", [], when=in_tree_icu)
set_config("MOZ_SYSTEM_ICU", True, when=system_icu)
set_define("MOZ_SYSTEM_ICU", True, when=system_icu)
option("--disable-icu4x", help="Disable using ICU4X")
@depends("--enable-icu4x", js_standalone)
def check_icu4x(enabled, js_standalone):
if not enabled and not js_standalone:
die("--disable-icu4x is not supported")
set_config("MOZ_ICU4X", True, when="--enable-icu4x")
set_define("MOZ_ICU4X", True, when="--enable-icu4x")
option("--without-intl-api", help="Disable ECMAScript Internationalization API")
@depends("--with-intl-api", js_standalone)
def check_intl_api(enabled, js_standalone):
if not enabled and not js_standalone:
die("--without-intl-api is not supported")
set_config("JS_HAS_INTL_API", True, when="--with-intl-api")
set_define("JS_HAS_INTL_API", True, when="--with-intl-api")
@depends(build_environment, when="--with-intl-api")
@imports(_from="__builtin__", _import="open")
@imports(_from="__builtin__", _import="ValueError")
def icu_version(build_env):
path = os.path.join(
build_env.topsrcdir, "intl", "icu", "source", "common", "unicode", "uvernum.h"
)
with open(path, encoding="utf-8") as fh:
for line in fh:
if line.startswith("#define"):
define = line.split(None, 3)
if len(define) == 3 and define[1] == "U_ICU_VERSION_MAJOR_NUM":
try:
return str(int(define[2]))
except ValueError:
pass
die("Cannot determine ICU version number from uvernum.h header file")
set_config("MOZ_ICU_VERSION", icu_version)
# Source files that use ICU should have control over which parts of the ICU
# namespace they want to use.
set_define("U_USING_ICU_NAMESPACE", "0", when="--with-intl-api")
# We build ICU as a static library.
set_define("U_STATIC_IMPLEMENTATION", True, when=depends(system_icu)(lambda x: not x))
# ECMAScript Temporal API Support (uses ICU and ICU4X)
# ======================================================
option("--with-temporal-api", default=False, help="Enable ECMAScript Temporal API")
set_config("JS_HAS_TEMPORAL_API", True, when="--with-temporal-api")
set_define("JS_HAS_TEMPORAL_API", True, when="--with-temporal-api")
@depends("--with-temporal-api", "--with-intl-api", "--enable-icu4x")
def check_temporal_api(temporal_enabled, intl_enabled, icu4x_enabled):
if temporal_enabled and not (intl_enabled and icu4x_enabled):
die("Can't use --with-temporal-api with --without-intl-api or --disable-icu4x")
# Initial support for WebAssembly JS-API Type Reflections
# =======================================================
@depends(milestone.is_nightly)
def default_wasm_type_reflections(is_nightly):
return is_nightly
option(
"--enable-wasm-type-reflections",
default=default_wasm_type_reflections,
help="{Enable|Disable} type reflection in WASM JS-API",
)
set_config(
"ENABLE_WASM_TYPE_REFLECTIONS",
depends_if("--enable-wasm-type-reflections")(lambda x: True),
)
set_define(
"ENABLE_WASM_TYPE_REFLECTIONS",
depends_if("--enable-wasm-type-reflections")(lambda x: True),
)
# Wasi configuration
# ===================================================
@depends(target.os)
def is_wasi_target(os):
return os == "WASI"
set_define("_WASI_EMULATED_PROCESS_CLOCKS", True, when=is_wasi_target)
set_define("_WASI_EMULATED_GETPID", True, when=is_wasi_target)
@depends(milestone.version)
def js_version(version):
return Version(version)
set_config("MOZJS_MAJOR_VERSION", depends(js_version.major)(lambda m: str(m)))
set_define("MOZJS_MAJOR_VERSION", js_version.major)
set_config("MOZJS_MINOR_VERSION", depends(js_version.minor)(lambda m: str(m)))
set_define("MOZJS_MINOR_VERSION", js_version.minor)
set_config("MOZJS_PATCH_VERSION", depends(js_version.patch)(lambda p: str(p)))
set_config(
"MOZJS_ALPHA",
depends(js_version)(
lambda x: x.version[-2] if str(x.version[-2]) in "ab" else None
),
)
# Some platforms have HeapReg, some don't
# =====================================================
# The ARM simulator runs on x86 and might be excluded by the first test,
# so we special-case it.
@depends("--enable-simulator", target)
def wasm_has_heapreg(simulator, target):
if target.cpu != "x86":
return True
if simulator and simulator[0] == "arm":
return True
set_define("WASM_HAS_HEAPREG", wasm_has_heapreg)
# Check for tm_zone, tm_gmtoff in struct tm
# ===================================================
with only_when(compile_environment):
set_define(
"HAVE_TM_ZONE_TM_GMTOFF",
c_compiler.try_compile(
includes=["time.h"],
body="struct tm tm; tm.tm_zone = 0; tm.tm_gmtoff = 1;",
check_msg="for tm_zone and tm_gmtoff in struct tm",
),
)
# Optimization flags
# ==============================================================
@depends(
target,
c_compiler,
configured_moz_optimize_flags,
when="--enable-compile-environment",
)
@imports(_from="mozbuild.shellutil", _import="split")
def moz_js_optimize_flags(target, compiler, configured_moz_optimize_flags):
if configured_moz_optimize_flags:
return configured_moz_optimize_flags
if target.kernel in ("Darwin", "Linux"):
flags = ["-O3"]
if target.os == "Android" and compiler.type == "gcc":
flags += ["-fno-reorder-functions"]
return flags
elif target.kernel == "WINNT":
return ["-O2"]
else:
return ["-O"]
set_config("MOZ_JS_OPTIMIZE_FLAGS", moz_js_optimize_flags, when=~js_build)
set_config("MOZ_OPTIMIZE_FLAGS", moz_js_optimize_flags, when=js_build)
# link executables against mozglue
# ==============================================================
@depends(
target_is_android | target_is_windows | target_is_darwin,
js_standalone & ~depends(when="--enable-jemalloc")(True),
)
def moz_glue_in_program(is_excluded_target, is_js_without_jemalloc):
return not is_excluded_target and not is_js_without_jemalloc
set_define("MOZ_GLUE_IN_PROGRAM", True, when=moz_glue_in_program)
set_config("MOZ_GLUE_IN_PROGRAM", True, when=moz_glue_in_program)
# JavaScript shell
# ==============================================================
@depends(milestone.symbolversion, js_standalone)
def js_library_name(symbolversion, js_standalone):
if js_standalone:
return f"mozjs-{symbolversion}"
else:
return "mozjs"
set_config("JS_LIBRARY_NAME", js_library_name)
@depends(nspr_config.libs, nspr_pkg.libs, instruments)
def js_config_libs(nspr_libs, nspr_pkg_libs, instruments):
libs = []
if nspr_libs:
libs += nspr_libs
if nspr_pkg_libs:
libs += nspr_pkg_libs
if instruments:
libs += ["-framework", "CoreFoundation"]
return libs
set_config("JS_CONFIG_LIBS", js_config_libs)
@depends(js_library_name, c_compiler, "--libdir", when=compile_environment)
def js_config_moz_js_libs(js_library_name, compiler, libdir):
if compiler.type == "clang-cl":
return [f"{libdir[0]}/{js_library_name}.lib"]
else:
return [f"-L{libdir[0]}", f"-l{js_library_name}"]
set_config("JS_CONFIG_MOZ_JS_LIBS", js_config_moz_js_libs)
#
# Checks for library functions
# ==============================================================
with only_when(compile_environment & depends(target.os)(lambda os: os != "WINNT")):
set_define("HAVE_GETPAGESIZE", check_symbol("getpagesize"))
set_define("HAVE_GMTIME_R", check_symbol("gmtime_r"))
set_define("HAVE_LOCALTIME_R", check_symbol("localtime_r"))
set_define("HAVE_GETTID", check_symbol("gettid"))
set_define("HAVE_SETPRIORITY", check_symbol("setpriority"))
set_define("HAVE_SYSCALL", check_symbol("syscall"))
set_define("HAVE_GETC_UNLOCKED", check_symbol("getc_unlocked"))
set_define("HAVE_PTHREAD_GETNAME_NP", check_symbol("pthread_getname_np"))
set_define("HAVE_PTHREAD_GET_NAME_NP", check_symbol("pthread_get_name_np"))
set_define("HAVE_STRERROR", check_symbol("strerror"))
set_config(
"HAVE_LANGINFO_CODESET",
try_link(
includes=["langinfo.h"],
body="char* cs = nl_langinfo(CODESET);",
check_msg="for nl_langinfo and CODESET",
when=building_with_gnu_compatible_cc,
),
)
@depends(check_symbol("__cxa_demangle", language="C++"), moz_debug, dmd)
def demangle_symbols(cxa_demangle, moz_debug, dmd):
# Demangle only for debug or DMD builds
if cxa_demangle and (moz_debug or dmd):
return True
set_define("MOZ_DEMANGLE_SYMBOLS", demangle_symbols)
set_define("HAVE__UNWIND_BACKTRACE", True, when=have_unwind)
with only_when(compile_environment):
set_define("HAVE__GETC_NOLOCK", check_symbol("_getc_nolock"))
set_define("HAVE_LOCALECONV", check_symbol("localeconv"))