bazel 可以构建 dll 吗？

Question

I've tried to compile a DLL using bazel for days. I followed the example bazel build hoping to generate a DLL. The BUILD file I used is as follow:

cc_binary(
    name = "expdtctlib",
    srcs = ["expdtctlib.cpp"],

    deps = [
        "//tensorflow/core:tensorflow",
    ],
    linkshared = 1,
)

cc_binary(
    name = "expdetect",
    srcs = ["expdetect.cpp"],
    data = [":expdtctlib.dll"],
    deps = [
        "//tensorflow/core:tensorflow",
    ],
)

I ran the command :

bazel build :expdetect

But an error said the "expdtctlib.dll" was missing. Don't bazel first generate "expdtctlib.dll" and then compile "expdetect.cpp"?

Besides,I've tried to use a another way to build DLL.The BUILD file is as follow:

cc_library(
    name = "ExpDetector",
    srcs = ["ExpDetector.cc"],
    hdrs = ["ExpDetector.h"],
    deps = [
        "//tensorflow/core:tensorflow",
    ],
)

cc_binary(
    name = "expdetect",
    srcs = ["expdetect.cc"],
    deps = [
        "//tensorflow/core:tensorflow",
        ":ExpDetector",
    ],
)

After a long time compiling,though a EXE file was output and ran well,I could only find .lib and .exp file but the .dll file.

Is there anyone successfully build DLL using bazel?I need your help please.

Answer 1

I modified two BUILD files as follow and it worked well!

filegroup(
    name = "srcs",
    srcs = glob(["**"]),
    visibility = ["//examples:__pkg__"],
)


cc_binary(
    name = "expdtctlib.dll",
    srcs = ["expdtctlib.cc",
            "expdtctlib.h"],

    deps = [
        "//tensorflow/core:tensorflow",
    ],
    linkshared = 1,
)

cc_binary(
    name = "expdetect",
    srcs = ["expdetect.cc"],
    data = [":expdtctlib.dll"],
    deps = [
        "//tensorflow/core:tensorflow",
    ],
)

The one below is in "//tensorflow".

exports_files(
    [
        "LICENSE",
        "ACKNOWLEDGEMENTS",
    ],
)

package(default_visibility = ["//visibility:public"])

filegroup(
    name = "srcs",
    srcs = glob(["**"]) + [
        "//tensorflow/tensorflow/detector0405:srcs",
    ],
)

I am not familiar with bazel and c++,but these modification work.I'll read Bazel Document to learn more.