# Copyright 2015 The Native Client 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("//build/config/features.gni")
import("//build/config/nacl/config.gni")

# Generate a nmf file
#
# Native Client Manifest (nmf) is a JSON file that tells the browser where to
# download and load Native Client application files and libraries.
#
# Variables:
#   executables: .nexe/.pexe/.bc executables to generate nmf for
#   lib_prefix: path to prepend to shared libraries in the nmf
#   nmf: the name and the path of the output file
#   nmfflags: additional flags for the nmf generator
#   stage_dependencies: directory for staging libraries
template("generate_nmf") {
  assert(defined(invoker.executables), "Must define executables")
  assert(defined(invoker.nmf), "Must define nmf")

  action(target_name) {
    nmfflags = []

    forward_variables_from(invoker,
                           [
                             "deps",
                             "data_deps",
                             "executables",
                             "lib_prefix",
                             "nmf",
                             "nmfflags",
                             "public_deps",
                             "stage_dependencies",
                             "testonly",
                             "visibility",
                           ])

    # TODO(phosek): Remove this conditional once
    # https://bugs.chromium.org/p/nativeclient/issues/detail?id=4339 is
    # resolved.
    if (current_cpu == "pnacl") {
      objdump = rebase_path("${nacl_toolchain_bindir}/x86_64-nacl-objdump")
    } else {
      objdump = rebase_path("${nacl_toolprefix}objdump")
    }
    if (host_os == "win") {
      objdump += ".exe"
    }

    script = "//native_client_sdk/src/tools/create_nmf.py"
    inputs = [
      objdump,
    ]
    sources = executables
    outputs = [
      nmf,
    ]
    if (is_nacl_glibc) {
      if (defined(stage_dependencies)) {
        nmfflags += [ "--stage-dependencies=" +
                      rebase_path(stage_dependencies, root_build_dir) ]
        lib_path = stage_dependencies
      } else {
        lib_path = root_build_dir
      }
      if (defined(lib_prefix)) {
        nmfflags += [ "--lib-prefix=" + lib_prefix ]
        lib_path += "/${lib_prefix}"
      }

      # NOTE: There is no explicit dependency for the lib32
      # and lib64 directories created in the product directory.
      # They are created as a side-effect of nmf creation.
      nmfflags += [ "--library-path=" + rebase_path(root_out_dir) ]
      if (current_cpu == "x86") {
        nmfflags += [ "--library-path=" +
                      rebase_path("${nacl_toolchain_tooldir}/lib32") ]
        data = [
          "${lib_path}/lib32/",
        ]
      } else if (current_cpu == "x64") {
        nmfflags +=
            [ "--library-path=" + rebase_path("${nacl_toolchain_tooldir}/lib") ]
        data = [
          "${lib_path}/lib64/",
        ]
      } else {
        nmfflags +=
            [ "--library-path=" + rebase_path("${nacl_toolchain_tooldir}/lib") ]
        data = [
          "${lib_path}/lib/",
        ]
      }
    }
    args = [
             "--no-default-libpath",
             "--objdump=" + objdump,
             "--output=" + rebase_path(nmf, root_build_dir),
           ] + nmfflags + rebase_path(sources, root_build_dir)
    if (is_nacl_glibc && current_cpu == "arm") {
      deps += [ "//native_client/src/untrusted/elf_loader:elf_loader" ]
    }
  }
}

# Generate a nmf file for Non-SFI tests
#
# Non-SFI tests use a different manifest format from regular Native Client and
# as such requires a different generator.
#
# Variables:
#   executable: Non-SFI .nexe executable to generate nmf for
#   nmf: the name and the path of the output file
#   nmfflags: additional flags for the nmf generator
template("generate_nonsfi_test_nmf") {
  assert(defined(invoker.executable), "Must define executable")
  assert(defined(invoker.nmf), "Must define nmf")

  action(target_name) {
    nmfflags = []

    forward_variables_from(invoker,
                           [
                             "deps",
                             "data_deps",
                             "executable",
                             "nmf",
                             "nmfflags",
                             "testonly",
                             "public_deps",
                             "visibility",
                           ])

    script = "//ppapi/tests/create_nonsfi_test_nmf.py"
    sources = [
      executable,
    ]
    outputs = [
      nmf,
    ]

    # NOTE: We use target_cpu rather than current_cpu on purpose because
    # current_cpu is always going to be pnacl for Non-SFI, but the Non-SFI
    # .nexe executable is always translated to run on the target machine.
    if (target_cpu == "x86") {
      arch = "x86-32"
    } else if (target_cpu == "x64") {
      arch = "x86-64"
    } else {
      arch = target_cpu
    }
    args = [
             "--program=" + rebase_path(executable, root_build_dir),
             "--arch=${arch}",
             "--output=" + rebase_path(nmf, root_build_dir),
           ] + nmfflags
  }
}