| # Copyright 2014 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 config causes functions not to be automatically exported from shared |
| # libraries. By default, all symbols are exported but this means there are |
| # lots of exports that slow everything down. In general we explicitly mark |
| # which functiosn we want to export from components. |
| # |
| # Some third_party code assumes all functions are exported so this is separated |
| # into its own config so such libraries can remove this config to make symbols |
| # public again. |
| # |
| # See http://gcc.gnu.org/wiki/Visibility |
| config("symbol_visibility_hidden") { |
| # Note that -fvisibility-inlines-hidden is set globally in the compiler |
| # config since that can almost always be applied. |
| cflags = [ "-fvisibility=hidden" ] |
| } |
| |
| # Settings for executables and shared libraries. |
| config("executable_ldconfig") { |
| ldflags = [ |
| # Want to pass "\$". Need to escape both '\' and '$'. GN will re-escape as |
| # required for ninja. |
| "-Wl,-rpath=\\\$ORIGIN/lib/", |
| |
| "-Wl,-rpath-link=lib/", |
| ] |
| |
| if (is_android) { |
| ldflags += [ |
| "-Bdynamic", |
| "-Wl,-z,nocopyreloc", |
| ] |
| } |
| } |
| |
| config("no_exceptions") { |
| cflags_cc = [ "-fno-exceptions" ] |
| } |