Split targets mixing .c and .cc sources.

webrtc/common_audio/BUILD.gn

 # Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 import("//build/config/arm.gni")
 import("../build/webrtc.gni")
@@ skipping 10 matching lines @@
   sources = [
     "audio_converter.cc",
     "audio_converter.h",
     "audio_ring_buffer.cc",
     "audio_ring_buffer.h",
     "audio_util.cc",
     "blocker.cc",
     "blocker.h",
     "channel_buffer.cc",
     "channel_buffer.h",
-    "fft4g.c",
-    "fft4g.h",
     "fir_filter.cc",
     "fir_filter.h",
     "fir_filter_neon.h",
     "fir_filter_sse.h",
     "include/audio_util.h",
     "lapped_transform.cc",
     "lapped_transform.h",
     "real_fourier.cc",
     "real_fourier.h",
     "real_fourier_ooura.cc",
     "real_fourier_ooura.h",
     "resampler/include/push_resampler.h",
     "resampler/include/resampler.h",
     "resampler/push_resampler.cc",
     "resampler/push_sinc_resampler.cc",
     "resampler/push_sinc_resampler.h",
     "resampler/resampler.cc",
     "resampler/sinc_resampler.cc",
     "resampler/sinc_resampler.h",
+    "smoothing_filter.cc",
+    "smoothing_filter.h",
+    "sparse_fir_filter.cc",
+    "sparse_fir_filter.h",
+    "vad/include/vad.h",
+    "vad/vad.cc",
+    "wav_file.cc",
+    "wav_file.h",
+    "wav_header.cc",
+    "wav_header.h",
+    "window_generator.cc",
+    "window_generator.h",
+  ]
+
+  deps = [
+    "../base:rtc_analytics",
+    "../system_wrappers",
+  ]
+  public_deps = [
+    ":common_audio_c",
+  ]
+
+  defines = []
+  if (rtc_use_openmax_dl) {
+    sources += [
+      "real_fourier_openmax.cc",
+      "real_fourier_openmax.h",
+    ]
+    defines += [ "RTC_USE_OPENMAX_DL" ]
+    if (rtc_build_openmax_dl) {
+      deps += [ "//third_party/openmax_dl/dl" ]
+    }
+  }
+
+  if (rtc_build_with_neon) {
+    deps += [ ":common_audio_neon" ]
+  }
+
+  if (is_win) {
+    cflags = [ "/wd4334" ]  # Ignore warning on shift operator promotion.
+  }
+
+  public_configs = [ ":common_audio_config" ]
+
+  if (!build_with_chromium && is_clang) {
+    # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
+    suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
+  }
+
+  if (current_cpu == "x86" || current_cpu == "x64") {
+    deps += [ ":common_audio_sse2" ]
+  }
+}
+
+rtc_source_set("common_audio_c") {
+  visibility = [ ":*" ]  # Only targets in this file can depend on this.
+  sources = [
+    "fft4g.c",
+    "fft4g.h",
     "ring_buffer.c",
     "ring_buffer.h",
     "signal_processing/auto_corr_to_refl_coef.c",
     "signal_processing/auto_correlation.c",
     "signal_processing/complex_fft_tables.h",
     "signal_processing/copy_set_operations.c",
     "signal_processing/cross_correlation.c",
     "signal_processing/division_operations.c",
     "signal_processing/dot_product_with_scale.c",
     "signal_processing/downsample_fast.c",
@@ skipping 17 matching lines @@
     "signal_processing/resample_by_2.c",
     "signal_processing/resample_by_2_internal.c",
     "signal_processing/resample_by_2_internal.h",
     "signal_processing/resample_fractional.c",
     "signal_processing/spl_init.c",
     "signal_processing/spl_inl.c",
     "signal_processing/spl_sqrt.c",
     "signal_processing/splitting_filter.c",
     "signal_processing/sqrt_of_one_minus_x_squared.c",
     "signal_processing/vector_scaling_operations.c",
-    "smoothing_filter.cc",
-    "smoothing_filter.h",
-    "sparse_fir_filter.cc",
-    "sparse_fir_filter.h",
-    "vad/include/vad.h",
     "vad/include/webrtc_vad.h",
-    "vad/vad.cc",
     "vad/vad_core.c",
     "vad/vad_core.h",
     "vad/vad_filterbank.c",
     "vad/vad_filterbank.h",
     "vad/vad_gmm.c",
     "vad/vad_gmm.h",
     "vad/vad_sp.c",
     "vad/vad_sp.h",
     "vad/webrtc_vad.c",
-    "wav_file.cc",
-    "wav_file.h",
-    "wav_header.cc",
-    "wav_header.h",
-    "window_generator.cc",
-    "window_generator.h",
   ]
 
-  deps = [
-    "../base:rtc_analytics",
-    "../system_wrappers",
-  ]
-
-  defines = []
-  if (rtc_use_openmax_dl) {
-    sources += [
-      "real_fourier_openmax.cc",
-      "real_fourier_openmax.h",
-    ]
-    defines += [ "RTC_USE_OPENMAX_DL" ]
-    if (rtc_build_openmax_dl) {
-      deps += [ "//third_party/openmax_dl/dl" ]
-    }
-  }
-
   if (current_cpu == "arm") {
     sources += [
       "signal_processing/complex_bit_reverse_arm.S",
       "signal_processing/spl_sqrt_floor_arm.S",
     ]
 
     if (arm_version >= 7) {
       sources += [ "signal_processing/filter_ar_fast_q12_armv7.S" ]
     } else {
       sources += [ "signal_processing/filter_ar_fast_q12.c" ]
     }
   }
 
-  if (rtc_build_with_neon) {
-    deps += [ ":common_audio_neon" ]
-  }
-
   if (current_cpu == "mipsel") {
     sources += [
       "signal_processing/complex_bit_reverse_mips.c",
       "signal_processing/complex_fft_mips.c",
       "signal_processing/cross_correlation_mips.c",
       "signal_processing/downsample_fast_mips.c",
       "signal_processing/filter_ar_fast_q12_mips.c",
       "signal_processing/include/spl_inl_mips.h",
       "signal_processing/min_max_operations_mips.c",
       "signal_processing/resample_by_2_mips.c",
@@ skipping 12 matching lines @@
       "signal_processing/filter_ar_fast_q12.c",
       "signal_processing/spl_sqrt_floor.c",
     ]
   }
 
   if (is_win) {
     cflags = [ "/wd4334" ]  # Ignore warning on shift operator promotion.
   }
 
   public_configs = [ ":common_audio_config" ]
-
-  if (!build_with_chromium && is_clang) {
-    # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
-    suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
-  }
-
-  if (current_cpu == "x86" || current_cpu == "x64") {
-    deps += [ ":common_audio_sse2" ]
-  }
 }
 
 if (current_cpu == "x86" || current_cpu == "x64") {
   rtc_static_library("common_audio_sse2") {
     sources = [
       "fir_filter_sse.cc",
       "resampler/sinc_resampler_sse.cc",
     ]
 
     if (is_posix) {
       cflags = [ "-msse2" ]
     }
 
     if (!build_with_chromium && is_clang) {
       # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
       suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
     }
   }
 }
 
 if (rtc_build_with_neon) {
   rtc_static_library("common_audio_neon") {
     sources = [
       "fir_filter_neon.cc",
       "resampler/sinc_resampler_neon.cc",
+    ]
+
+    if (current_cpu != "arm64") {
+      # Enable compilation for the NEON instruction set. This is needed
+      # since //build/config/arm.gni only enables NEON for iOS, not Android.
+      # This provides the same functionality as webrtc/build/arm_neon.gypi.
+      suppressed_configs += [ "//build/config/compiler:compiler_arm_fpu" ]
+      cflags = [ "-mfpu=neon" ]
+    }
+
+    # Disable LTO on NEON targets due to compiler bug.
+    # TODO(fdegans): Enable this. See crbug.com/408997.
+    if (rtc_use_lto) {
+      cflags -= [
+        "-flto",
+        "-ffat-lto-objects",
+      ]
+    }
+
+    if (!build_with_chromium && is_clang) {
+      # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
+      suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
+    }
+
+    public_deps = [
+      ":common_audio_neon_c",
+    ]
+  }
+
+  rtc_source_set("common_audio_neon_c") {
+    visibility = [ ":*" ]  # Only targets in this file can depend on this.
+    sources = [
       "signal_processing/cross_correlation_neon.c",
       "signal_processing/downsample_fast_neon.c",
       "signal_processing/min_max_operations_neon.c",
     ]
 
     if (current_cpu != "arm64") {
       # Enable compilation for the NEON instruction set. This is needed
       # since //build/config/arm.gni only enables NEON for iOS, not Android.
       # This provides the same functionality as webrtc/build/arm_neon.gypi.
       suppressed_configs += [ "//build/config/compiler:compiler_arm_fpu" ]
@@ skipping 71 matching lines @@
       "//testing/gtest",
     ]
 
     if (is_android) {
       deps += [ "//testing/android/native_test:native_test_support" ]
 
       shard_timeout = 900
     }
   }
 }