v8/snapshot_toolchain.gni
vogelheim 54f663e2f2 Revert of Re-land "Fix double-building of v8 in GN builds" (patchset #2 id:20001 of https://codereview.chromium.org/2171083003/ )
Reason for revert:
Reverted, because it breaks some funky android build.

Can reproduce breakage locally, w/ args.gn as follows:
disable_brotli_filter = true
disable_file_support = true
disable_ftp_support = true
enable_websockets = false
ffmpeg_branding = "Chrome"
is_component_build = false
is_debug = true
proprietary_codecs = true
symbol_level = 1
target_cpu = "x86"
target_os = "android"
use_goma = true
use_platform_icu_alternatives = true

This ends up building the mkpeephole tool w/ an architecture that won't run on the build machine.

Original issue's description:
> Re-land "Fix double-building of v8 in GN builds"
>
> This re-lands r37926 w/ the needed fix for cross-compiles; we
> can only re-use the default toolchain when the host can actually
> run it.
>
> R=machenbach@chromium.org
> BUG=629825
>
> Committed: https://crrev.com/5b762044b53f988fa9a534fe1a84f9938b3abd75
> Cr-Commit-Position: refs/heads/master@{#37970}

TBR=machenbach@chromium.org,dpranke@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=629825

Review-Url: https://codereview.chromium.org/2175693003
Cr-Commit-Position: refs/heads/master@{#37984}
2016-07-22 13:22:21 +00:00

70 lines
3.0 KiB
Plaintext

# Copyright 2015 the V8 project authors. All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import("//build/config/v8_target_cpu.gni")
declare_args() {
# The snapshot needs to be compiled for the host, but compiled with
# a toolchain that matches the bit-width of the target.
v8_snapshot_toolchain = ""
}
# TODO(GYP): For now we only support 32-bit little-endian target builds from an
# x64 Linux host. Eventually we need to support all of the host/target
# configurations v8 runs on.
if (v8_snapshot_toolchain == "") {
if (host_cpu == "x64" && host_os == "linux") {
if (current_cpu == "arm" || current_cpu == "mipsel" ||
current_cpu == "x86") {
_snapshot_cpu = "x86"
} else {
assert(current_cpu == "arm64" || current_cpu == "x64" ||
current_cpu == "mips64el",
"Need environment for this arch: $current_cpu")
_snapshot_cpu = "x64"
}
if (v8_current_cpu != _snapshot_cpu) {
_cpus = "${_snapshot_cpu}_v8_${v8_current_cpu}"
} else {
_cpus = _snapshot_cpu
}
if ((host_os == "linux" && current_os == "android") || is_clang) {
v8_snapshot_toolchain = "//build/toolchain/linux:clang_${_cpus}"
} else {
v8_snapshot_toolchain = "//build/toolchain/linux:${_cpus}"
}
} else if (host_os == "mac" && current_os == "win") {
assert(v8_current_cpu == current_cpu,
"v8 target must match the regular target on this platform")
v8_snapshot_toolchain = "//build/toolchain/mac:clang_$current_cpu"
} else {
v8_snapshot_toolchain = default_toolchain
}
}