69 lines
1.9 KiB
Text
69 lines
1.9 KiB
Text
# Copyright 2015 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/chromecast_build.gni")
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assert(is_chromecast)
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config("static_config") {
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ldflags = [
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# We want to statically link libstdc++/libgcc.
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"-static-libstdc++",
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"-static-libgcc",
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# Don't allow visible symbols from libraries that contain
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# assembly code with symbols that aren't hidden properly.
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# http://b/26390825
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"-Wl,--exclude-libs=libffmpeg.a",
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]
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}
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config("ldconfig") {
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visibility = [ ":*" ]
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# Chromecast executables depend on several shared libraries in
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# /oem_cast_shlib, $ORIGIN, and $ORIGIN/lib. Add these rpaths to each binary.
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# This is explicitly disabled in Chrome for security reasons (see comments in
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# //build/config/gcc/BUILD.gn), but necessary on Chromecast so that OEM's may
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# override the default libraries shipped in the Cast receiver package.
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ldflags = [
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"-Wl,-rpath=/oem_cast_shlib",
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"-Wl,-rpath=\$ORIGIN/lib",
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"-Wl,-rpath=\$ORIGIN",
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]
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}
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config("executable_config") {
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configs = [ ":ldconfig" ]
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if (current_cpu == "arm") {
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ldflags = [
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# Export stdlibc++ and libgcc symbols to force shlibs to refer to these
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# symbols from the executable.
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"-Wl,--export-dynamic",
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"-lm", # stdlibc++ requires math.h
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# In case we redefined stdlibc++ symbols (e.g. tc_malloc)
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"-Wl,--allow-multiple-definition",
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"-Wl,--whole-archive",
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"-l:libstdc++.a",
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"-l:libgcc.a",
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"-Wl,--no-whole-archive",
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]
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# Despite including libstdc++/libgcc archives, we still need to specify
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# static linking for them in order to prevent the executable from having a
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# dynamic dependency on them.
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configs += [ ":static_config" ]
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}
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}
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config("shared_library_config") {
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configs = [ ":ldconfig" ]
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if (current_cpu == "arm") {
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configs += [ ":static_config" ]
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}
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}
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