blob: 8328582ee11fd280c74b570058f2a8fb9a5cd0b8 [file] [log] [blame]
# Copyright 2019 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import("$zx/public/gn/resource.gni")
import("$zx/public/gn/toolchain/environment_redirect.gni")
# TODO(38226): This is a kludge to make fuzzer.foosan builds actually just use
# the plain foosan build of libfdio. This works around the problem that
# libfuzzer itself calls into libfdio and so its own calls pollute the data
# it's collecting about the code under test. By redirecting from the fuzzer
# environment to the base environment (i.e. "user.fuzzer" -> "user"), we get
# the build that has the same foosan instrumentation to catch bugs but doesn't
# have the fuzzer (i.e. coverage tracking) instrumentation that influences
# libfuzzer's choices.
if (get_path_info(toolchain.environment, "extension") == "fuzzer") {
foreach(target,
[
"fdio",
"headers",
]) {
environment_redirect(target) {
environment_label =
"$zx/public/gn/toolchain:${toolchain.base_environment}"
shlib = true
variant = toolchain.variant
deps = [ ":$target" ]
if (target == "fdio") {
deps += [ ":fuzzer-redirect-manifest" ]
}
}
}
} else {
zx_library("fdio") {
sdk = "shared"
sdk_publishable = true
sdk_headers = [
"lib/fdio/directory.h",
"lib/fdio/fd.h",
"lib/fdio/fdio.h",
"lib/fdio/io.h",
"lib/fdio/limits.h",
"lib/fdio/namespace.h",
"lib/fdio/private.h",
"lib/fdio/spawn.h",
"lib/fdio/unsafe.h",
"lib/fdio/vfs.h",
"lib/fdio/watcher.h",
]
shared = true
sources = [
"bsdsocket.cc",
"fd.cc",
"fdio.cc",
"get-vmo.cc",
"namespace/local-connection.cc",
"namespace/local-filesystem.cc",
"namespace/local-vnode.cc",
"namespace/namespace.cc",
"null.cc",
"remoteio.cc",
"socket.cc",
"spawn.cc",
"stubs.cc",
"uname.cc",
"unistd.cc",
"waitable.cc",
"watcher.cc",
"zxio.cc",
]
deps = [
"$zx/system/fidl/fuchsia-device:llcpp",
"$zx/system/fidl/fuchsia-io:llcpp",
"$zx/system/fidl/fuchsia-ldsvc:c",
"$zx/system/fidl/fuchsia-net:llcpp",
"$zx/system/fidl/fuchsia-posix-socket:llcpp",
"$zx/system/fidl/fuchsia-process:c",
"$zx/system/ulib/fbl",
"$zx/system/ulib/fidl",
"$zx/system/ulib/zircon",
"$zx/system/ulib/zircon-internal",
"$zx/system/ulib/zx",
"$zx/system/ulib/zxio",
"$zx/third_party/ulib/safemath",
]
configs += [ "$zx_build/public/gn/config:static-libc++" ]
public_configs = [ "$zx/public/gn/config:Wno-unused-function" ]
}
# TODO(38226): Binaries built in the fuzzer environment look for libraries
# in that environment.variant's libprefix. But the redirect above sent it
# to the base environment (with the same variant), which has a different
# libprefix. So add metadata that places the runtime shlib binary
# underneath the fuzzer libprefix so it will be found where it's expected.
# Note that the manifest will also mention the base environment variant
# location for the same library, which is superfluous but harmless.
resource("fuzzer-redirect-manifest") {
visibility = [ ":*" ]
sources = [ "$target_out_dir/libfdio.so" ]
outputs = [ "lib/fuzzer.${toolchain.variant}/{{source_file_part}}" ]
}
}