commit bb23c838f564e4af2ec26a3871bd63d875c5ea8b
author Karl Wiberg <kwiberg@webrtc.org> Sun Apr 22 19:55:00 2018 +0200
committer Commit Bot <commit-bot@chromium.org> Mon Apr 23 13:41:47 2018 +0000
tree fb1fce37668fb38f07fd121bb1e130783afeea95
parent e999b3fdf7e7d613ed4d6841ce1f0977527f098c

GN hack to tag targets as poisonous (and use it with audio codecs)

Only specially taggged targets may transitively depend on poisonous
targets. We first apply it to audio codecs.

This makes it much clearer exactly what parts of the code still have
dependencies on the audio codecs (and we want to eventually get rid of
pretty much all of them).

Bug: webrtc:8396, webrtc:9121
Change-Id: Iba5c2e806c702b5cfe881022674705f647896d43
Reviewed-on: https://webrtc-review.googlesource.com/69520
Commit-Queue: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22979}

modules/audio_coding/BUILD.gn

diff --git a/modules/audio_coding/BUILD.gn b/modules/audio_coding/BUILD.gn
index 7cea425..7dfe70b 100644
--- a/modules/audio_coding/BUILD.gn
+++ b/modules/audio_coding/BUILD.gn
@@ -104,6 +104,7 @@
 
 rtc_static_library("audio_coding") {
   visibility += [ "*" ]
+  allow_poison = [ "audio_codecs" ]  # TODO(bugs.webrtc.org/8396): Remove.
   sources = [
     "acm2/acm_receiver.cc",
     "acm2/acm_receiver.h",
@@ -220,6 +221,7 @@
 
 rtc_static_library("g711") {
   visibility += [ "*" ]
+  poisonous = [ "audio_codecs" ]
   sources = [
     "codecs/g711/audio_decoder_pcm.cc",
     "codecs/g711/audio_decoder_pcm.h",
@@ -242,6 +244,7 @@
 }
 
 rtc_source_set("g711_c") {
+  poisonous = [ "audio_codecs" ]
   sources = [
     "codecs/g711/g711.c",
     "codecs/g711/g711.h",
@@ -260,6 +263,7 @@
 
 rtc_static_library("g722") {
   visibility += [ "*" ]
+  poisonous = [ "audio_codecs" ]
   sources = [
     "codecs/g722/audio_decoder_g722.cc",
     "codecs/g722/audio_decoder_g722.h",
@@ -283,6 +287,7 @@
 }
 
 rtc_source_set("g722_c") {
+  poisonous = [ "audio_codecs" ]
   sources = [
     "codecs/g722/g722_decode.c",
     "codecs/g722/g722_enc_dec.h",
@@ -302,6 +307,7 @@
 
 rtc_static_library("ilbc") {
   visibility += webrtc_default_visibility
+  poisonous = [ "audio_codecs" ]
   sources = [
     "codecs/ilbc/audio_decoder_ilbc.cc",
     "codecs/ilbc/audio_decoder_ilbc.h",
@@ -326,6 +332,7 @@
 }
 
 rtc_source_set("ilbc_c") {
+  poisonous = [ "audio_codecs" ]
   sources = [
     "codecs/ilbc/abs_quant.c",
     "codecs/ilbc/abs_quant.h",
@@ -483,6 +490,7 @@
 }
 
 rtc_static_library("isac_common") {
+  poisonous = [ "audio_codecs" ]
   sources = [
     "codecs/isac/audio_decoder_isac_t.h",
     "codecs/isac/audio_decoder_isac_t_impl.h",
@@ -508,6 +516,7 @@
 
 rtc_static_library("isac") {
   visibility += [ "*" ]
+  poisonous = [ "audio_codecs" ]
   sources = [
     "codecs/isac/main/include/audio_decoder_isac.h",
     "codecs/isac/main/include/audio_encoder_isac.h",
@@ -525,6 +534,7 @@
 }
 
 rtc_static_library("isac_c") {
+  poisonous = [ "audio_codecs" ]
   sources = [
     "codecs/isac/main/include/isac.h",
     "codecs/isac/main/source/arith_routines.c",
@@ -602,6 +612,7 @@
 
 rtc_static_library("isac_fix") {
   visibility += [ "*" ]
+  poisonous = [ "audio_codecs" ]
   sources = [
     "codecs/isac/fix/source/audio_decoder_isacfix.cc",
     "codecs/isac/fix/source/audio_encoder_isacfix.cc",
@@ -625,6 +636,7 @@
 }
 
 rtc_source_set("isac_fix_common") {
+  poisonous = [ "audio_codecs" ]
   sources = [
     "codecs/isac/fix/source/codec.h",
     "codecs/isac/fix/source/entropy_coding.h",
@@ -645,6 +657,7 @@
 }
 
 rtc_source_set("isac_fix_c_arm_asm") {
+  poisonous = [ "audio_codecs" ]
   sources = []
   if (current_cpu == "arm" && arm_version >= 7) {
     sources += [
@@ -659,6 +672,7 @@
 }
 
 rtc_source_set("isac_fix_c") {
+  poisonous = [ "audio_codecs" ]
   sources = [
     "codecs/isac/fix/include/audio_decoder_isacfix.h",
     "codecs/isac/fix/include/audio_encoder_isacfix.h",
@@ -760,6 +774,7 @@
 
 if (rtc_build_with_neon) {
   rtc_static_library("isac_neon") {
+    poisonous = [ "audio_codecs" ]
     sources = [
       "codecs/isac/fix/source/entropy_coding_neon.c",
       "codecs/isac/fix/source/filterbanks_neon.c",
@@ -801,6 +816,7 @@
 
 rtc_static_library("pcm16b") {
   visibility += [ "*" ]
+  poisonous = [ "audio_codecs" ]
   sources = [
     "codecs/pcm16b/audio_decoder_pcm16b.cc",
     "codecs/pcm16b/audio_decoder_pcm16b.h",
@@ -825,6 +841,7 @@
 }
 
 rtc_source_set("pcm16b_c") {
+  poisonous = [ "audio_codecs" ]
   sources = [
     "codecs/pcm16b/pcm16b.c",
     "codecs/pcm16b/pcm16b.h",
@@ -839,6 +856,7 @@
 
 rtc_static_library("webrtc_opus") {
   visibility += webrtc_default_visibility
+  poisonous = [ "audio_codecs" ]
   sources = [
     "codecs/opus/audio_decoder_opus.cc",
     "codecs/opus/audio_decoder_opus.h",
@@ -874,6 +892,7 @@
 }
 
 rtc_source_set("webrtc_opus_c") {
+  poisonous = [ "audio_codecs" ]
   sources = [
     "codecs/opus/opus_inst.h",
     "codecs/opus/opus_interface.c",