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[bazel] Upstream BUILD and create config pkg

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- Upstream changes made by BUILD and defs.bzl
- Creates a new config package, since configurations targets
  are different between bazel and blaze
- Runs buildifier in all files

No-Try: true
Change-Id: I65a1bc94a76b79eb26a348baf11eef4249be9552
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3250637
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77597}
This commit is contained in:
Victor Gomes 2021-10-28 16:33:16 +02:00 committed by V8 LUCI CQ
parent 392078fb83
commit 715d5a3a46
7 changed files with 907 additions and 400 deletions
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688
BUILD.bazel
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File diff suppressed because it is too large Load Diff

6
WORKSPACE
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@ -16,6 +16,12 @@ http_archive(
load("@bazel_skylib//:workspace.bzl", "bazel_skylib_workspace")
bazel_skylib_workspace()
new_local_repository(
name = "config",
path = "bazel/config",
build_file = "bazel/config/BUILD.bazel",
)
new_local_repository(
name = "zlib",
path = "third_party/zlib",

1
bazel/BUILD.icu
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@ -26,7 +26,6 @@ cc_library(
"U_ENABLE_RESOURCE_TRACING=0",
"UNISTR_FROM_STRING_EXPLICIT=",
"UNISTR_FROM_CHAR_EXPLICIT=",
"ICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_FILE",
],
copts = [
"-Wno-unused-function",

109
bazel/config/BUILD.bazel Normal file
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@ -0,0 +1,109 @@
# Copyright 2021 the V8 project authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
load("@bazel_skylib//lib:selects.bzl", "selects")
load(
":v8-target-cpu.bzl",
"v8_configure_target_cpu",
"v8_target_cpu",
)
package(
default_visibility = [
"//visibility:public",
],
)
config_setting(
name = "platform_cpu_x64",
constraint_values = ["@platforms//cpu:x86_64"],
)
config_setting(
name = "platform_cpu_ia32",
constraint_values = ["@platforms//cpu:x86_32"],
)
config_setting(
name = "platform_cpu_arm64",
constraint_values = ["@platforms//cpu:arm"],
)
config_setting(
name = "platform_cpu_arm",
constraint_values = ["@platforms//cpu:arm"],
)
v8_target_cpu(
name = "v8_target_cpu",
build_setting_default = "none",
)
config_setting(
name = "v8_host_target_is_none",
flag_values = {
":v8_target_cpu": "none",
},
)
v8_configure_target_cpu(
name = "x64",
matching_configs = [":platform_cpu_x64"],
)
v8_configure_target_cpu(
name = "ia32",
matching_configs = [":platform_cpu_ia32"],
)
v8_configure_target_cpu(
name = "arm",
matching_configs = [":platform_cpu_arm64"],
)
v8_configure_target_cpu(
name = "arm64",
matching_configs = [":platform_cpu_arm"],
)
selects.config_setting_group(
name = "v8_target_is_32_bits",
match_any = [
":v8_target_ia32",
":v8_target_arm",
],
)
# Running arm64 simulator on x64 host.
selects.config_setting_group(
name = "v8_arm64_simulator",
match_all = [
":v8_target_arm64",
":is_x64",
],
)
config_setting(
name = "is_linux",
constraint_values = ["@platforms//os:linux"],
)
config_setting(
name = "is_android",
constraint_values = ["@platforms//os:android"],
)
config_setting(
name = "is_macos",
constraint_values = ["@platforms//os:macos"],
)
selects.config_setting_group(
name = "is_posix",
match_any = [
":is_linux",
":is_android",
":is_macos",
],
)

61
bazel/config/v8-target-cpu.bzl Normal file
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@ -0,0 +1,61 @@
# Copyright 2021 the V8 project authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Build rules to choose the v8 target architecture."""
load("@bazel_skylib//lib:selects.bzl", "selects")
V8CpuTypeInfo = provider(
doc = "A singleton provider that specifies the V8 target CPU type",
fields = {
"value": "The V8 Target CPU selected.",
},
)
def _host_target_cpu_impl(ctx):
allowed_values = ["arm", "arm64", "ia32", "x64", "none"]
cpu_type = ctx.build_setting_value
if cpu_type in allowed_values:
return V8CpuTypeInfo(value = cpu_type)
else:
fail("Error setting " + str(ctx.label) + ": invalid v8 target cpu '" +
cpu_type + "'. Allowed values are " + str(allowed_values))
v8_target_cpu = rule(
implementation = _host_target_cpu_impl,
build_setting = config.string(flag = True),
doc = "CPU that V8 will generate code for.",
)
def v8_configure_target_cpu(name, matching_configs):
selects.config_setting_group(
name = "is_" + name,
match_any = matching_configs,
)
# If v8_target_cpu flag is set to 'name'
native.config_setting(
name = "v8_host_target_is_" + name,
flag_values = {
":v8_target_cpu": name,
},
)
# Default target if no v8_host_target flag is set.
selects.config_setting_group(
name = "v8_target_is_" + name,
match_all = [
":v8_host_target_is_none",
":is_" + name,
],
)
# Select either the default target or the flag.
selects.config_setting_group(
name = "v8_target_" + name,
match_any = [
":v8_host_target_is_" + name,
":v8_target_is_" + name,
],
)

197
bazel/defs.bzl
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@ -22,10 +22,6 @@ _create_option_int = rule(
build_setting = config.int(flag = True),
)
def v8_raw_flag(name, default = False):
_create_option_flag(name = name, build_setting_default = default)
native.config_setting(name = "raw_" + name, flag_values = {name: "True"})
def v8_flag(name, default = False):
_create_option_flag(name = name, build_setting_default = default)
native.config_setting(name = "is_" + name, flag_values = {name: "True"})
@ -47,21 +43,23 @@ def _custom_config_impl(ctx):
v8_custom_config = rule(
implementation = _custom_config_impl,
attrs = {
"_v8_typed_array_max_size_in_heap":
attr.label(default = ":v8_typed_array_max_size_in_heap"),
}
"_v8_typed_array_max_size_in_heap": attr.label(default = ":v8_typed_array_max_size_in_heap"),
},
)
def _config_impl(ctx):
hdrs = []
# Add headers
for h in ctx.attr.hdrs:
hdrs += h[DefaultInfo].files.to_list()
defs = []
# Add conditional_defines
for f, d in ctx.attr.conditional_defines.items():
if f[FlagInfo].value:
defs.append(d)
# Add defines
for d in ctx.attr.defines:
defs.append(d)
@ -87,9 +85,9 @@ v8_config = rule(
},
)
def _default_args(configs):
def _default_args():
return struct(
deps = configs + [":define_flags"],
deps = [":define_flags"],
copts = [
"-fPIC",
"-Werror",
@ -105,9 +103,9 @@ def _default_args(configs):
],
includes = ["include"],
linkopts = [
"-pthread"
"-pthread",
] + select({
":is_macos": [],
"@v8//bazel/config:is_macos": [],
"//conditions:default": ["-Wl,--no-as-needed -ldl"],
}) + select({
":should_add_rdynamic": ["-rdynamic"],
@ -115,16 +113,51 @@ def _default_args(configs):
}),
)
ENABLE_I18N_SUPPORT_DEFINES = [
"-DV8_INTL_SUPPORT",
"-DICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_STATIC",
# src/regexp/regexp-compiler-tonode.cc uses an unsafe ICU method and
# access a character implicitly.
"-DUNISTR_FROM_CHAR_EXPLICIT=",
]
def _should_emit_noicu_and_icu(noicu_srcs, noicu_deps, icu_srcs, icu_deps):
return noicu_srcs != [] or noicu_deps != [] or icu_srcs != [] or icu_deps != []
# buildifier: disable=function-docstring
def v8_binary(
name,
srcs,
configs = [],
deps = [],
includes = [],
copts = [],
linkopts = [],
noicu_srcs = [],
noicu_deps = [],
icu_srcs = [],
icu_deps = [],
**kwargs):
default = _default_args(configs)
default = _default_args()
if _should_emit_noicu_and_icu(noicu_srcs, noicu_deps, icu_srcs, icu_deps):
native.cc_binary(
name = "noicu/" + name,
srcs = srcs + noicu_srcs,
deps = deps + noicu_deps + default.deps,
includes = includes + default.includes,
copts = copts + default.copts,
linkopts = linkopts + default.linkopts,
**kwargs
)
native.cc_binary(
name = "icu/" + name,
srcs = srcs + icu_srcs,
deps = deps + icu_deps + default.deps,
includes = includes + default.includes,
copts = copts + default.copts + ENABLE_I18N_SUPPORT_DEFINES,
linkopts = linkopts + default.linkopts,
**kwargs
)
else:
native.cc_binary(
name = name,
srcs = srcs,
@ -135,16 +168,42 @@ def v8_binary(
**kwargs
)
# buildifier: disable=function-docstring
def v8_library(
name,
srcs,
configs = [],
deps = [],
includes = [],
copts = [],
linkopts = [],
noicu_srcs = [],
noicu_deps = [],
icu_srcs = [],
icu_deps = [],
**kwargs):
default = _default_args(configs)
default = _default_args()
if _should_emit_noicu_and_icu(noicu_srcs, noicu_deps, icu_srcs, icu_deps):
native.cc_library(
name = "noicu/" + name,
srcs = srcs + noicu_srcs,
deps = deps + noicu_deps + default.deps,
includes = includes + default.includes,
copts = copts + default.copts,
linkopts = linkopts + default.linkopts,
alwayslink = 1,
**kwargs
)
native.cc_library(
name = "icu/" + name,
srcs = srcs + icu_srcs,
deps = deps + icu_deps + default.deps,
includes = includes + default.includes,
copts = copts + default.copts + ENABLE_I18N_SUPPORT_DEFINES,
linkopts = linkopts + default.linkopts,
alwayslink = 1,
**kwargs
)
else:
native.cc_library(
name = name,
srcs = srcs,
@ -157,86 +216,133 @@ def v8_library(
)
def _torque_impl(ctx):
v8root = ctx.attr.v8root[FlagInfo].value
v8root = "."
prefix = ctx.attr.prefix
# Arguments
args = []
args += ctx.attr.args
args.append("-o")
args.append(ctx.bin_dir.path + "/torque-generated")
args.append(ctx.bin_dir.path + "/" + v8root + "/" + ctx.attr.prefix + "/torque-generated")
args.append("-strip-v8-root")
args.append("-v8-root")
args.append(v8root)
# Sources
args += [f.path for f in ctx.files.srcs]
# Generate/declare output files
outs = []
for src in ctx.files.srcs:
root, period, ext = src.path.rpartition(".")
# Strip v8root
if root[:len(v8root)] == v8root:
root = root[len(v8root):]
file = "torque-generated/" + root
file = ctx.attr.prefix + "/torque-generated/" + root
outs.append(ctx.actions.declare_file(file + "-tq-csa.cc"))
outs.append(ctx.actions.declare_file(file + "-tq-csa.h"))
outs.append(ctx.actions.declare_file(file + "-tq-inl.inc"))
outs.append(ctx.actions.declare_file(file + "-tq.inc"))
outs.append(ctx.actions.declare_file(file + "-tq.cc"))
outs += [ctx.actions.declare_file("torque-generated/" + f) for f in ctx.attr.extras]
outs += [ctx.actions.declare_file(ctx.attr.prefix + "/torque-generated/" + f) for f in ctx.attr.extras]
ctx.actions.run(
outputs = outs,
inputs = ctx.files.srcs,
arguments = args,
executable = ctx.executable.tool,
mnemonic = "GenTorque",
progress_message = "Generating Torque files",
)
return [DefaultInfo(files = depset(outs))]
v8_torque = rule(
_v8_torque = rule(
implementation = _torque_impl,
# cfg = v8_target_cpu_transition,
attrs = {
"prefix": attr.string(mandatory = True),
"srcs": attr.label_list(allow_files = True, mandatory = True),
"extras": attr.string_list(),
"tool": attr.label(
default = ":torque",
allow_files = True,
executable = True,
cfg = "host",
cfg = "exec",
),
"args": attr.string_list(),
"v8root": attr.label(default = ":v8_root"),
},
)
def v8_torque(name, noicu_srcs, icu_srcs, args, extras):
_v8_torque(
name = "noicu/" + name,
prefix = "noicu",
srcs = noicu_srcs,
args = args,
extras = extras,
tool = select({
"@config//:v8_target_is_32_bits": ":torque_non_pointer_compression",
"//conditions:default": ":torque",
}),
)
_v8_torque(
name = "icu/" + name,
prefix = "icu",
srcs = icu_srcs,
args = args,
extras = extras,
tool = select({
"@config//:v8_target_is_32_bits": ":torque_non_pointer_compression",
"//conditions:default": ":torque",
}),
)
def _mksnapshot(ctx):
outs = [
ctx.actions.declare_file("snapshot.cc"),
ctx.actions.declare_file("embedded.S"),
ctx.actions.declare_file(ctx.attr.prefix + "/snapshot.cc"),
ctx.actions.declare_file(ctx.attr.prefix + "/embedded.S"),
]
ctx.actions.run(
outputs = outs,
inputs = [],
arguments = [
"--embedded_variant=Default",
"--startup_src", outs[0].path,
"--embedded_src", outs[1].path,
"--startup_src",
outs[0].path,
"--embedded_src",
outs[1].path,
] + ctx.attr.args,
executable = ctx.executable.tool,
progress_message = "Running mksnapshot"
progress_message = "Running mksnapshot",
)
return [DefaultInfo(files = depset(outs))]
v8_mksnapshot = rule(
_v8_mksnapshot = rule(
implementation = _mksnapshot,
attrs = {
"args": attr.string_list(),
"tool": attr.label(
default = ":mksnapshot",
mandatory = True,
allow_files = True,
executable = True,
cfg = "host",
cfg = "exec",
),
}
"prefix": attr.string(mandatory = True),
},
)
def v8_mksnapshot(name, args):
_v8_mksnapshot(
name = "noicu/" + name,
args = args,
prefix = "noicu",
tool = ":noicu/mksnapshot",
)
_v8_mksnapshot(
name = "icu/" + name,
args = args,
prefix = "icu",
tool = ":icu/mksnapshot",
)
def _quote(val):
@ -256,11 +362,8 @@ def _json(kv_pairs):
content += "}\n"
return content
# TODO(victorgomes): Create a rule (instead of a macro), that can
# dynamically populate the build config.
def v8_build_config(name):
cpu = _quote("x64")
content = _json([
def build_config_content(cpu, icu):
return _json([
("current_cpu", cpu),
("dcheck_always_on", "false"),
("is_android", "false"),
@ -276,10 +379,11 @@ def v8_build_config(name):
("is_ubsan_vptr", "false"),
("target_cpu", cpu),
("v8_current_cpu", cpu),
("v8_dict_property_const_tracking", "false"),
("v8_enable_atomic_marking_state", "false"),
("v8_enable_atomic_object_field_writes", "false"),
("v8_enable_concurrent_marking", "false"),
("v8_enable_i18n_support", "true"),
("v8_enable_i18n_support", icu),
("v8_enable_verify_predictable", "false"),
("v8_enable_verify_csa", "false"),
("v8_enable_lite_mode", "false"),
@ -290,10 +394,21 @@ def v8_build_config(name):
("v8_enable_webassembly", "false"),
("v8_control_flow_integrity", "false"),
("v8_enable_single_generation", "false"),
("v8_enable_virtual_memory_cage", "false"),
("v8_target_cpu", cpu),
])
# TODO(victorgomes): Create a rule (instead of a macro), that can
# dynamically populate the build config.
def v8_build_config(name):
cpu = _quote("x64")
native.genrule(
name = name,
outs = [name + ".json"],
cmd = "echo '" + content + "' > \"$@\"",
name = "noicu/" + name,
outs = ["noicu/" + name + ".json"],
cmd = "echo '" + build_config_content(cpu, "false") + "' > \"$@\"",
)
native.genrule(
name = "icu/" + name,
outs = ["icu/" + name + ".json"],
cmd = "echo '" + build_config_content(cpu, "true") + "' > \"$@\"",
)

59
bazel/v8-non-pointer-compression.bzl Normal file
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@ -0,0 +1,59 @@
def _v8_disable_pointer_compression(settings, attr):
return {
"//third_party/v8/HEAD:v8_enable_pointer_compression": "False",
}
v8_disable_pointer_compression = transition(
implementation = _v8_disable_pointer_compression,
inputs = [],
outputs = ["//third_party/v8/HEAD:v8_enable_pointer_compression"],
)
# The implementation of transition_rule: all this does is copy the
# cc_binary's output to its own output and propagate its runfiles
# and executable to use for "$ bazel run".
#
# This makes transition_rule as close to a pure wrapper of cc_binary
# as possible.
def _v8_binary_non_pointer_compression(ctx):
binary = ctx.attr.binary[0]
outfile = ctx.actions.declare_file(ctx.label.name)
cc_binary_outfile = binary[DefaultInfo].files.to_list()[0]
ctx.actions.run_shell(
inputs = [cc_binary_outfile],
outputs = [outfile],
command = "cp %s %s" % (cc_binary_outfile.path, outfile.path),
)
return [
DefaultInfo(
executable = outfile,
data_runfiles = binary[DefaultInfo].data_runfiles,
),
]
# The purpose of this rule is to transition to a config where v8_target_cpu is
# set to the appropriate architecture, which will remain in place through exec
# transitions, so mksnapshot can for instance build on x64 but for arm64.
v8_binary_non_pointer_compression = rule(
implementation = _v8_binary_non_pointer_compression,
attrs = {
# This is the cc_binary whose deps will select() on that feature.
# Note specificaly how it's configured with v8_target_cpu_transition, which
# ensures that setting propagates down the graph.
"binary": attr.label(cfg = v8_disable_pointer_compression),
# This is a stock Bazel requirement for any rule that uses Starlark
# transitions. It's okay to copy the below verbatim for all such rules.
#
# The purpose of this requirement is to give the ability to restrict
# which packages can invoke these rules, since Starlark transitions
# make much larger graphs possible that can have memory and performance
# consequences for your build. The whitelist defaults to "everything".
# But you can redefine it more strictly if you feel that's prudent.
"_allowlist_function_transition": attr.label(
default = "//tools/allowlists/function_transition_allowlist",
),
},
# Making this executable means it works with "$ bazel run".
executable = True,
)