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140 lines
4.3 KiB
Plaintext
140 lines
4.3 KiB
Plaintext
# Copyright 2017 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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import("//build/config/fuchsia/config.gni")
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import("//build/config/fuchsia/rules.gni")
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import("//build/config/sysroot.gni")
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assert(is_fuchsia)
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assert(!is_posix)
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config("compiler") {
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sdk_version_file = rebase_path("$fuchsia_sdk/.hash")
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sdk_version = read_file(sdk_version_file, "trim string")
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defines = [
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# To force full builds after SDK updates in case of ABI changes.
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"FUCHSIA_SDK_VERSION=$sdk_version",
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]
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cflags = []
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ldflags = []
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if (current_cpu == "arm64") {
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cflags += [ "--target=aarch64-fuchsia" ]
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ldflags += [ "--target=aarch64-fuchsia" ]
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} else if (current_cpu == "x64") {
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cflags += [ "--target=x86_64-fuchsia" ]
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ldflags += [ "--target=x86_64-fuchsia" ]
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} else {
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assert(false, "Unsupported architecture")
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}
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asmflags = cflags
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ldflags += [
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# TODO(thakis): Once Fuchsia's libclang_rt.builtin no longer has upstream
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# patches, we might want to make tools/clang/scripts/update.py build it
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# and bundle it with the clang package instead of using the library from
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# the SDK, https://crbug.com/724204
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# Note: Intentionally 7.0.0 instead of $clang_version because the clang
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# version of the toolchain_libs directory in the Fuchsia SDK can be
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# different from the version of Chromium's clang.
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"-resource-dir",
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rebase_path(fuchsia_sdk, root_build_dir) + "/toolchain_libs/clang/7.0.0",
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# The stack defaults to 256k on Fuchsia (see
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# https://fuchsia.googlesource.com/zircon/+/master/system/private/zircon/stack.h#9),
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# but on other platforms it's much higher, so a variety of code assumes more
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# will be available. Raise to 8M which matches e.g. macOS.
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"-Wl,-z,stack-size=0x800000",
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# We always want fdio or else e.g. stdio wouldn't be initialized if fdio
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# happens to not be directly referenced. The common POSIX-y compiler setup
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# uses -Wl,--as-needed which drops it if it's simply "-lfdio" from a libs
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# setting. Disable --as-needed, add fdio, and then set back to --as-needed.
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# https://crbug.com/731217.
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"-Wl,--no-as-needed",
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"-lfdio",
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"-Wl,--as-needed",
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]
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# Add SDK lib dir for -lfdio above.
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lib_dirs = [ rebase_path("${fuchsia_sdk}/arch/${current_cpu}/lib") ]
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# TODO(crbug.com/821951): Clang enables SafeStack by default when targeting
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# Fuchsia, but it breaks some tests, notably in V8.
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cflags += [ "-fno-sanitize=safe-stack" ]
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libs = [ "zircon" ]
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}
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# Writes an extended version of fvm.blk to fvm.extended.blk.
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blobstore_extended_path = "$root_out_dir/fvm.extended.blk"
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action("blobstore_extended_fvm") {
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# The file is grown by 1GB, which should be large enough to hold packaged
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# binaries and assets. The value should be increased if the size becomes a
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# limitation in the future.
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_extend_size = "1073741824" # 1GB
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if (current_cpu == "arm64") {
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_target_dir = "//third_party/fuchsia-sdk/sdk/target/aarch64"
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} else if (current_cpu == "x64") {
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_target_dir = "//third_party/fuchsia-sdk/sdk/target/x86_64"
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}
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script = "//build/config/fuchsia/extend_fvm.py"
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inputs = [
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"${_target_dir}/fvm.blk",
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"${_target_dir}/bootdata-blob.bin",
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"${_target_dir}/zircon.bin",
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]
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outputs = [
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blobstore_extended_path,
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]
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args = [
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rebase_path("${fuchsia_sdk}/tools/fvm"),
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rebase_path("${_target_dir}/fvm.blk"),
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rebase_path(blobstore_extended_path),
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_extend_size,
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]
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}
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# _________________________________________
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# / Create a compressed copy-on-write (COW) \
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# \ image based on fvm.blk. /
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# -----------------------------------------
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# \ ^__^
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# \ (oo)\_______
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# (__)\ )\/\
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# ||----w |
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# || ||
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action("blobstore_extended_qcow2") {
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script = "//build/gn_run_binary.py"
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deps = [
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":blobstore_extended_fvm",
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]
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inputs = [
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blobstore_extended_path,
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]
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outputs = [
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blobstore_qcow_path,
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]
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data = [
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blobstore_qcow_path,
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]
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args = [
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rebase_path("//third_party/fuchsia-sdk/sdk/qemu/bin/qemu-img",
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root_build_dir),
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"convert",
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"-f",
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"raw",
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"-O",
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"qcow2",
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"-c",
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rebase_path(blobstore_extended_path),
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rebase_path(blobstore_qcow_path),
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]
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}
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