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# 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") {
if (is_android) {
ldflags = [
"-Bdynamic",
"-Wl,-z,nocopyreloc",
]
} else {
# Android doesn't support rpath.
ldflags = [
# Want to pass "\$". GN will re-escape as required for ninja.
"-Wl,-rpath=\$ORIGIN/",
"-Wl,-rpath-link=",
# Newer binutils don't set DT_RPATH unless you disable "new" dtags
# and the new DT_RUNPATH doesn't work without --no-as-needed flag.
"-Wl,--disable-new-dtags",
]
}
}
config("no_exceptions") {
cflags_cc = [ "-fno-exceptions" ]
cflags_objcc = cflags_cc
}
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