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After Clang 6.0, changing the value of a single string can change the order of symbols in the .rodata section. This confuses Golem's checks for the equivalence of two binaries. This change adds a GN flag to omit the git hash and commit time from the Dart VM's version string to avoid re-running Golem benchmarks on commits where the only VM change is in the version string. To use it, pass --gn-args="dart_version_git_info=false" to gn.py Change-Id: I8134714d50e3c9b6dae750a515dc3c2228d76b53 Reviewed-on: https://dart-review.googlesource.com/33000 Reviewed-by: Siva Annamalai <asiva@google.com> Commit-Queue: Zach Anderson <zra@google.com>
60 lines
2.5 KiB
Plaintext
60 lines
2.5 KiB
Plaintext
# Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
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# for details. All rights reserved. Use of this source code is governed by a
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# BSD-style license that can be found in the LICENSE file.
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declare_args() {
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# Instead of using is_debug, we introduce a different flag for specifying a
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# Debug build of Dart so that clients can still use a Release build of Dart
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# while themselves doing a Debug build.
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dart_debug = false
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# Set the runtime mode. This affects how the runtime is built and what
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# features it has. Valid values are:
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# 'develop' (the default) - VM is built to run as a JIT with all development
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# features enabled.
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# 'profile' - The VM is built to run with AOT compiled code with only the
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# CPU profiling features enabled.
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# 'release' - The VM is built to run with AOT compiled code with no developer
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# features enabled.
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#
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# These settings are only used for Flutter, at the moment. A standalone build
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# of the Dart VM should leave this set to "develop", and should set
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# 'is_debug', 'is_release', or 'is_product'.
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#
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# TODO(rmacnak): dart_runtime_mode no longer selects whether libdart is build
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# for JIT or AOT, since libdart waw split into libdart_jit and
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# libdart_precompiled_runtime. We should remove this flag and just set
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# dart_debug/dart_product.
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dart_runtime_mode = "develop"
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# Explicitly set the target architecture to use a simulator.
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# Available options are: arm, arm64, x64, ia32, and dbc.
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dart_target_arch = target_cpu
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# The optimization level to use for debug builds.
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dart_debug_optimization_level = "2"
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# Whether to fall back to built-in root certificates when they cannot be
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# verified at the operating system level.
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dart_use_fallback_root_certificates = false
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# The BUILD.gn file that we pull from chromium as part of zlib has a
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# dependence on //base, which we don't pull in. In a standalone build of the
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# VM, we set this to //runtime/bin/zlib where we have a BUILD.gn file without
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# a dependence on //base.
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dart_zlib_path = "//third_party/zlib"
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# Whether to link the standalone VM against tcmalloc. The standalone build of
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# the VM enables this only for Linux builds.
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dart_use_tcmalloc = false
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# Controls the kind of core snapshot linked into the standalone VM. Using a
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# core-jit snapshot breaks the ability to change various flags that affect
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# code generation.
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dart_core_snapshot_kind = "core"
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# Whether the Dart binary version string should include the git hash and
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# git commit time.
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dart_version_git_info = true
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}
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