Land BoringSSL roll on master

third_party/boringssl/BUILD.gn

 # Copyright 2014 The Chromium 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/android/config.gni")
 import("//build/config/sanitizers/sanitizers.gni")
+import("BUILD.generated.gni")
 
 # Config for us and everybody else depending on BoringSSL.
 config("external_config") {
   include_dirs = [ "src/include" ]
   if (is_component_build) {
     defines = [ "BORINGSSL_SHARED_LIBRARY" ]
   }
 }
 
-
 # Config internal to this build file, shared by boringssl and boringssl_fuzzer.
 config("internal_config") {
   visibility = [ ":*" ]  # Only targets in this file can depend on this.
   defines = [
     "BORINGSSL_IMPLEMENTATION",
     "BORINGSSL_NO_STATIC_INITIALIZER",
-    "OPENSSL_SMALL_FOOTPRINT",
+    "OPENSSL_SMALL",
   ]
+  # configs = [
+  #   # TODO(davidben): Fix size_t truncations in BoringSSL.
+  #   # https://crbug.com/429039
+  #   "//build/config/compiler:no_size_t_to_int_warning",
+  # ]
+  if (is_posix) {
+    cflags_c = [ "-std=c99" ]
+    defines += [ "_XOPEN_SOURCE=700" ]
+  }
 }
 
-
 config("no_asm_config") {
   visibility = [ ":*" ]  # Only targets in this file can depend on this.
   defines = [ "OPENSSL_NO_ASM" ]
 }
 
+all_sources = crypto_sources + ssl_sources
 
-# The list of BoringSSL files is kept in boringssl.gypi.
-gypi_values =
-    exec_script("../../tools/gypi_to_gn.py",
-                [ rebase_path("boringssl.gypi") ],
-                "scope",
-                [ "boringssl.gypi" ])
-boringssl_sources =
-    gypi_values.boringssl_crypto_sources + gypi_values.boringssl_ssl_sources
+# Windows' assembly is built with Yasm. The other platforms use the platform
+# assembler.
+if (is_win && !is_msan) {
+  import("//third_party/yasm/yasm_assemble.gni")
+  yasm_assemble("boringssl_asm") {
+    if (current_cpu == "x64") {
+      sources = crypto_sources_win_x86_64
+    } else if (current_cpu == "x86") {
+      sources = crypto_sources_win_x86
+    }
+  }
+} else {
+  # This has no sources on some platforms so must be a source_set.
+  source_set("boringssl_asm") {
+    visibility = [ ":*" ]  # Only targets in this file can depend on this.
 
+    defines = []
+    sources = []
+    include_dirs = [ "src/include" ]
 
-source_set("boringssl_asm") {
-  visibility = [ ":*" ]  # Only targets in this file can depend on this.
-  sources = []
-  #asmflags = []
-  include_dirs = [
-    "src/include",
-    # This is for arm_arch.h, which is needed by some asm files. Since the
-    # asm files are generated and kept in a different directory, they
-    # cannot use relative paths to find this file.
-    "src/crypto",
-  ]
+    if ((current_cpu == "arm" || current_cpu == "arm64") && is_clang) {
+      if (current_cpu == "arm") {
+        # TODO(hans) Enable integrated-as (crbug.com/124610).
+        asmflags += [ "-fno-integrated-as" ]
+      }
+      if (is_android) {
+        rebased_android_toolchain_root =
+            rebase_path(android_toolchain_root, root_build_dir)
 
-  if (current_cpu == "x64") {
-    if (is_ios) {
-      defines += [ "OPENSSL_NO_ASM" ]
-    } else if (is_mac) {
-      sources += gypi_values.boringssl_mac_x86_64_sources
-    } else if (is_linux || is_android) {
-      sources += gypi_values.boringssl_linux_x86_64_sources
+        # Else /usr/bin/as gets picked up.
+        asmflags += [ "-B${rebased_android_toolchain_root}/bin" ]
+      }
+    }
+
+    if (is_msan) {
+      public_configs = [ ":no_asm_config" ]
+    } else if (current_cpu == "x64") {
+      if (is_mac) {
+        sources += crypto_sources_mac_x86_64
+      } else if (is_linux || is_android) {
+        sources += crypto_sources_linux_x86_64
+      } else {
+        public_configs = [ ":no_asm_config" ]
+      }
+    } else if (current_cpu == "x86") {
+      if (is_mac) {
+        sources += crypto_sources_mac_x86
+      } else if (is_linux || is_android) {
+        sources += crypto_sources_linux_x86
+      } else {
+        public_configs = [ ":no_asm_config" ]
+      }
+    } else if (current_cpu == "arm" && (is_linux || is_android)) {
+      sources += crypto_sources_linux_arm
+    } else if (current_cpu == "arm64" && (is_linux || is_android)) {
+      sources += crypto_sources_linux_aarch64
+
+      # TODO(davidben): Remove explicit arch flag once https://crbug.com/576858
+      # is fixed.
+      asmflags += [ "-march=armv8-a+crypto" ]
     } else {
       public_configs = [ ":no_asm_config" ]
     }
-  } else if (current_cpu == "x86") {
-    if (is_ios) {
-      defines += [ "OPENSSL_NO_ASM" ]
-    } else if (is_mac) {
-      sources += gypi_values.boringssl_mac_x86_sources
-    } else if (is_linux || is_android) {
-      sources += gypi_values.boringssl_linux_x86_sources
-    } else {
-      public_configs = [ ":no_asm_config" ]
-    }
-  } else if (current_cpu == "arm" && (is_linux || is_android)) {
-    sources += gypi_values.boringssl_linux_arm_sources
-  } else if (current_cpu == "arm64" && (is_linux || is_android)) {
-    sources += gypi_values.boringssl_linux_aarch64_sources
-  } else {
-    public_configs = [ ":no_asm_config" ]
   }
 }
 
-
 component("boringssl") {
-  sources = boringssl_sources
+  sources = all_sources
   deps = [
     ":boringssl_asm",
   ]
+
   public_configs = [ ":external_config" ]
   configs += [ ":internal_config" ]
+
   configs -= [ "//build/config/compiler:chromium_code" ]
   configs += [ "//build/config/compiler:no_chromium_code" ]
 }