| # Copyright 2016 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| # This file should only be imported from files that define toolchains. |
| # There's no way to enforce this exactly, but all toolchains are processed |
| # in the context of the default_toolchain, so we can at least check for that. |
| assert(current_toolchain == default_toolchain) |
| |
| import("//build/config/compiler/compiler.gni") |
| import("//build/config/sanitizers/sanitizers.gni") |
| import("//build/toolchain/toolchain.gni") |
| |
| declare_args() { |
| # Limit the number of concurrent links; we often want to run fewer |
| # links at once than we do compiles, because linking is memory-intensive. |
| # The default to use varies by platform and by the amount of memory |
| # available, so we call out to a script to get the right value. |
| concurrent_links = -1 |
| } |
| |
| if (concurrent_links == -1) { |
| if (use_thin_lto) { |
| _args = [ |
| "--mem_per_link_gb=10", |
| "--reserve_mem_gb=10", |
| ] |
| } else if (use_sanitizer_coverage || use_fuzzing_engine) { |
| # Sanitizer coverage instrumentation increases linker memory consumption |
| # significantly. |
| _args = [ "--mem_per_link_gb=16" ] |
| } else if (is_win && symbol_level == 1 && !is_debug) { |
| _args = [ "--mem_per_link_gb=3" ] |
| } else if (is_win) { |
| _args = [ "--mem_per_link_gb=5" ] |
| } else if (is_mac) { |
| _args = [ "--mem_per_link_gb=4" ] |
| } else if (is_android && !is_component_build && symbol_level == 2) { |
| # Full debug symbols require large memory for link. |
| _args = [ "--mem_per_link_gb=25" ] |
| } else if (is_android && !is_debug && !using_sanitizer && symbol_level < 2) { |
| # Increase the number of concurrent links for release bots. Debug builds |
| # make heavier use of ProGuard, and so should not be raised. Sanitizers also |
| # increase the memory overhead. |
| if (symbol_level == 1) { |
| _args = [ "--mem_per_link_gb=6" ] |
| } else { |
| _args = [ "--mem_per_link_gb=4" ] |
| } |
| } else if (is_linux && !is_chromeos && symbol_level == 0) { |
| # Memory consumption on link without debug symbols is low on linux. |
| _args = [ "--mem_per_link_gb=3" ] |
| } else { |
| _args = [] |
| } |
| |
| # TODO(crbug.com/617429) Pass more build configuration info to the script |
| # so that we can compute better values. |
| concurrent_links = exec_script("get_concurrent_links.py", _args, "value") |
| } |