build: Add MIPS architectures

src/build/config/nacl/config.gni

@@ -19,6 +19,8 @@ if (is_nacl_glibc) {
     nacl_toolchain_package = "nacl_x86_glibc"
   } else if (current_cpu == "arm") {
     nacl_toolchain_package = "nacl_arm_glibc"
+  } else if (current_cpu == "mips") {
+    nacl_toolchain_package = "nacl_mips_glibc"
   }
 } else {
   nacl_toolchain_package = "pnacl_newlib"

src/build/toolchain/linux/BUILD.gn

@@ -185,6 +185,20 @@ clang_toolchain("clang_mips64el") {
   }
 }
 
+clang_toolchain("clang_mips") {
+  toolchain_args = {
+    current_cpu = "mips"
+    current_os = "linux"
+  }
+}
+
+clang_toolchain("clang_mips64") {
+  toolchain_args = {
+    current_cpu = "mips64"
+    current_os = "linux"
+  }
+}
+
 gcc_toolchain("mipsel") {
   toolprefix = "mipsel-linux-gnu-"
 

src/build/toolchain/nacl/BUILD.gn

@@ -167,6 +167,12 @@ nacl_glibc_toolchain("arm") {
   toolchain_tuple = "arm-nacl"
 }
 
+nacl_glibc_toolchain("mips") {
+  toolchain_package = ""
+  toolchain_revision = ""
+  toolchain_tuple = ""
+}
+
 template("nacl_clang_toolchain") {
   toolchain_cpu = target_name
   assert(defined(invoker.toolchain_tuple), "Must define toolchain_tuple")
@@ -264,3 +270,7 @@ nacl_clang_toolchains("arm") {
 nacl_clang_toolchains("mipsel") {
   toolchain_tuple = "mipsel-nacl"
 }
+
+nacl_clang_toolchains("mips") {
+  toolchain_tuple = "mips-nacl"
+}

src/chrome/installer/linux/BUILD.gn

@@ -403,6 +403,10 @@ template("linux_package") {
       deb_arch = "mipsel"
     } else if (current_cpu == "mips64el") {
       deb_arch = "mips64el"
+    } else if (current_cpu == "mips") {
+      deb_arch = "mips"
+    } else if (current_cpu == "mips64") {
+      deb_arch = "mips64"
     } else {
       assert(false, "Linux installer not configured for this architecture.")
     }
@@ -461,6 +465,10 @@ template("linux_package") {
         rpm_arch = "mipsel"
       } else if (current_cpu == "mips64el") {
         rpm_arch = "mips64el"
+      } else if (current_cpu == "mips") {
+        rpm_arch = "mips"
+      } else if (current_cpu == "mips64") {
+        rpm_arch = "mips64"
       } else {
         assert(false, "Linux installer not configured for this architecture.")
       }

src/native_client/src/trusted/service_runtime/linux/BUILD.gn

@@ -52,6 +52,10 @@ if (current_toolchain == bootstrap_toolchain) {
     nacl_reserve_top = "0x40008000"
     linker_emulation = "elf32ltsmip"
   }
+  if (current_cpu == "mips") {
+    nacl_reserve_top = ""
+    linker_emulation = ""
+  }
 
   static_library("nacl_bootstrap_lib") {
     # This code has very specific requirements related to its static

src/native_client/src/trusted/service_runtime/linux/toolchain/BUILD.gn

@@ -36,3 +36,7 @@ nacl_bootstrap_toolchain("nacl_bootstrap_arm") {
 nacl_bootstrap_toolchain("nacl_bootstrap_mipsel") {
   toolchain_cpu = "mipsel"
 }
+
+nacl_bootstrap_toolchain("nacl_bootstrap_mips") {
+  toolchain_cpu = "mips"
+}

src/ppapi/native_client/nacl_test_data.gni

@@ -220,6 +220,8 @@ template("nacl_test_data") {
             arch = "x86-32-nonsfi"
           } else if (translate_cpu == "arm") {
             arch = "arm-nonsfi"
+          } else if (translate_cpu == "mips") {
+            arch = "mips"
           }
         } else {
           # TODO(phosek): remove the following once change 1360243003 is rolled
@@ -232,6 +234,8 @@ template("nacl_test_data") {
             arch = "armv7"
           } else if (translate_cpu == "mipsel") {
             arch = "mipsel"
+          } else if (translate_cpu == "mips") {
+            arch = "mips"
           }
         }
 

src/ppapi/native_client/src/untrusted/pnacl_support_extension/BUILD.gn

@@ -53,7 +53,7 @@ action("pnacl_support_extension") {
 
   if (target_cpu == "arm") {
     output_cpu = "arm"
-  } else if (target_cpu == "mipsel") {
+  } else if (target_cpu == "mipsel" || target_cpu == "mips") {
     output_cpu = "mips32"
   } else if (target_cpu == "x64") {
     output_cpu = "x86_64"

src/skia/BUILD.gn

@@ -18,6 +18,9 @@ if (current_cpu == "arm") {
 if (current_cpu == "mipsel" || current_cpu == "mips64el") {
   import("//build/config/mips.gni")
 }
+if (current_cpu == "mips" || current_cpu == "mips64") {
+  import("//build/config/mips.gni")
+}
 
 skia_support_gpu = !is_ios
 skia_support_pdf = !is_ios && enable_basic_printing
@@ -714,7 +717,7 @@ skia_source_set("skia_opts") {
   } else if (current_cpu == "arm64") {
     sources = skia_opts.arm64_sources
     deps += [ ":skia_opts_crc32" ]
-  } else if (current_cpu == "mipsel") {
+  } else if (current_cpu == "mipsel" || current_cpu == "mips") {
     cflags += [ "-fomit-frame-pointer" ]
 
     if (mips_dsp_rev >= 1) {
@@ -722,7 +725,7 @@ skia_source_set("skia_opts") {
     } else {
       sources = skia_opts.none_sources
     }
-  } else if (current_cpu == "mips64el") {
+  } else if (current_cpu == "mips64el" || current_cpu == "mips64") {
     cflags += [ "-fomit-frame-pointer" ]
     sources = skia_opts.none_sources
   } else if (current_cpu == "ppc64") {

src/third_party/angle/gni/angle.gni

@@ -26,10 +26,12 @@ angle_data_dir = "angledata"
 declare_args() {
   if (current_cpu == "arm64" || current_cpu == "x64" ||
       current_cpu == "mips64el" || current_cpu == "s390x" ||
+      current_cpu == "mips64" ||
       current_cpu == "ppc64") {
     angle_64bit_current_cpu = true
   } else if (current_cpu == "arm" || current_cpu == "x86" ||
              current_cpu == "mipsel" || current_cpu == "s390" ||
+             current_cpu == "mips" ||
              current_cpu == "ppc") {
     angle_64bit_current_cpu = false
   } else {

src/third_party/swiftshader/third_party/llvm-7.0/BUILD.gn

@@ -333,6 +333,8 @@ swiftshader_source_set("swiftshader_llvm") {
     deps += [":swiftshader_llvm_aarch64"]
   } else if (target_cpu == "mipsel" || target_cpu == "mips64el") {
     deps += [":swiftshader_llvm_mips"]
+  } else if (target_cpu == "mips" || target_cpu == "mips64") {
+    deps += [":swiftshader_llvm_mips"]
   } else if (target_cpu == "ppc64") {
     deps += [":swiftshader_llvm_ppc"]
   } else {