Add loongson3a Build jobs.

Change-Id: I4a0259f82272099e08df0e7dea91489f6d641ca4
Reviewed-on: https://skia-review.googlesource.com/113670
Commit-Queue: Ben Wagner <benjaminwagner@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>

7 files changed, 265 insertions, 4 deletions

diff --git a/gn/BUILD.gn b/gn/BUILD.gn
index e7fffa2ab9..4c6eac27b0 100644
--- a/gn/BUILD.gn
+++ b/gn/BUILD.gn
@@ -112,6 +112,17 @@ config("default") {
       "-mfpu=neon",
       "-mthumb",
     ]
+  } else if (current_cpu == "loongson3a") {
+    asmflags += [ "-march=loongson3a" ]
+    cflags += [
+      "-march=loongson3a",
+
+      # Causes an internal compiler error.
+      "-DSKCMS_PORTABLE",
+    ]
+  } else if (current_cpu == "mips64el") {
+    asmflags += [ "-march=mips64" ]
+    cflags += [ "-march=mips64" ]
   } else if (current_cpu == "x86" && !is_win) {
     asmflags += [ "-m32" ]
     cflags += [
diff --git a/infra/bots/gen_tasks.go b/infra/bots/gen_tasks.go
index 76570ff15b..6706a46f01 100644
--- a/infra/bots/gen_tasks.go
+++ b/infra/bots/gen_tasks.go
@@ -546,6 +546,12 @@ func compile(b *specs.TasksCfgBuilder, name string, parts map[string]string) str
 		if strings.Contains(name, "EMCC") {
 			pkgs = append(pkgs, b.MustGetCipdPackageFromAsset("emscripten_sdk"))
 		}
+		if parts["target_arch"] == "mips64el" || parts["target_arch"] == "loongson3a" {
+			if parts["compiler"] != "GCC" {
+				glog.Fatalf("mips64el toolchain is GCC, but compiler is %q in %q", parts["compiler"], name)
+			}
+			pkgs = append(pkgs, b.MustGetCipdPackageFromAsset("mips64el_toolchain_linux"))
+		}
 	} else if strings.Contains(name, "Win") {
 		deps = append(deps, isolateCIPDAsset(b, ISOLATE_WIN_TOOLCHAIN_NAME))
 		if strings.Contains(name, "Clang") {
diff --git a/infra/bots/jobs.json b/infra/bots/jobs.json
index 5cf84d6fce..0cbc39c976 100644
--- a/infra/bots/jobs.json
+++ b/infra/bots/jobs.json
@@ -48,6 +48,10 @@
   "Build-Debian9-EMCC-wasm-Release",
   "Build-Debian9-GCC-arm-Debug-Chromecast",
   "Build-Debian9-GCC-arm-Release-Chromecast",
+  "Build-Debian9-GCC-loongson3a-Debug",
+  "Build-Debian9-GCC-loongson3a-Release",
+  "Build-Debian9-GCC-mips64el-Debug",
+  "Build-Debian9-GCC-mips64el-Release",
   "Build-Debian9-GCC-x86-Debug",
   "Build-Debian9-GCC-x86-Release",
   "Build-Debian9-GCC-x86_64-Debug",
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-GCC-loongson3a-Release.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-GCC-loongson3a-Release.json
new file mode 100644
index 0000000000..92099f6c9b
--- /dev/null
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Build-Debian9-GCC-loongson3a-Release.json
@@ -0,0 +1,72 @@
+[
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/mips64el_toolchain_linux/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get mips64el_toolchain_linux VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "BUILDTYPE": "Release",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-GCC-loongson3a-Release"
+    },
+    "infra_step": true,
+    "name": "fetch-gn"
+  },
+  {
+    "cmd": [
+      "[CUSTOM_/_B_WORK]/skia/bin/gn",
+      "gen",
+      "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-GCC-loongson3a-Release/Release",
+      "--args=cc=\"[START_DIR]/mips64el_toolchain_linux/bin/mips64el-linux-gnuabi64-gcc-7\" cxx=\"[START_DIR]/mips64el_toolchain_linux/bin/mips64el-linux-gnuabi64-g++-7\" extra_cflags=[\"-Wno-format-truncation\", \"-Wno-uninitialized\", \"-DDUMMY_mips64el_toolchain_linux_version=42\", \"-Wno-strict-overflow\"] extra_ldflags=[\"-L[START_DIR]/mips64el_toolchain_linux/mips64el-linux-gnuabi64/lib\"] is_debug=false skia_enable_gpu=false skia_use_fontconfig=false skia_use_system_freetype2=false target_cpu=\"loongson3a\""
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "BUILDTYPE": "Release",
+      "CHROME_HEADLESS": "1",
+      "LD_LIBRARY_PATH": "[START_DIR]/mips64el_toolchain_linux/lib/x86_64-linux-gnu/",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-GCC-loongson3a-Release"
+    },
+    "name": "gn gen"
+  },
+  {
+    "cmd": [
+      "ninja",
+      "-k",
+      "0",
+      "-C",
+      "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-GCC-loongson3a-Release/Release"
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "BUILDTYPE": "Release",
+      "CHROME_HEADLESS": "1",
+      "LD_LIBRARY_PATH": "[START_DIR]/mips64el_toolchain_linux/lib/x86_64-linux-gnu/",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[CUSTOM_/_B_WORK]/skia/out/Build-Debian9-GCC-loongson3a-Release"
+    },
+    "name": "ninja"
+  },
+  {
+    "name": "$result",
+    "recipe_result": null,
+    "status_code": 0
+  }
+]
\ No newline at end of file
diff --git a/infra/bots/recipe_modules/flavor/examples/full.py b/infra/bots/recipe_modules/flavor/examples/full.py
index 9030e2c43d..2bb86d912f 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.py
+++ b/infra/bots/recipe_modules/flavor/examples/full.py
@@ -70,6 +70,7 @@ TEST_BUILDERS = [
   'Build-Debian9-Clang-x86_64-Release-NoDEPS',
   'Build-Debian9-Clang-x86_64-Release-Vulkan',
   'Build-Debian9-EMCC-wasm-Release',
+  'Build-Debian9-GCC-loongson3a-Release',
   'Build-Debian9-GCC-x86_64-Debug-EmbededResouces',
   'Build-Debian9-GCC-x86_64-Release-ANGLE',
   'Build-Debian9-GCC-x86_64-Release-Flutter_Android',
diff --git a/infra/bots/recipe_modules/flavor/gn_flavor.py b/infra/bots/recipe_modules/flavor/gn_flavor.py
index cc137ea8ad..f5efffa8b4 100644
--- a/infra/bots/recipe_modules/flavor/gn_flavor.py
+++ b/infra/bots/recipe_modules/flavor/gn_flavor.py
@@ -41,6 +41,8 @@ class GNFlavorUtils(default_flavor.DefaultFlavorUtils):
     cc, cxx = None, None
     extra_cflags = []
     extra_ldflags = []
+    args = {}
+    env = {}
 
     if compiler == 'Clang' and self.m.vars.is_linux:
       cc  = clang_linux + '/bin/clang'
@@ -56,7 +58,31 @@ class GNFlavorUtils(default_flavor.DefaultFlavorUtils):
     elif compiler == 'Clang':
       cc, cxx = 'clang', 'clang++'
     elif compiler == 'GCC':
-      cc, cxx = 'gcc', 'g++'
+      if target_arch in ['mips64el', 'loongson3a']:
+        mips64el_toolchain_linux = str(self.m.vars.slave_dir.join(
+            'mips64el_toolchain_linux'))
+        cc  = mips64el_toolchain_linux + '/bin/mips64el-linux-gnuabi64-gcc-7'
+        cxx = mips64el_toolchain_linux + '/bin/mips64el-linux-gnuabi64-g++-7'
+        env['LD_LIBRARY_PATH'] = (
+            mips64el_toolchain_linux + '/lib/x86_64-linux-gnu/')
+        extra_ldflags.append('-L' + mips64el_toolchain_linux +
+                             '/mips64el-linux-gnuabi64/lib')
+        extra_cflags.extend([
+            '-Wno-format-truncation',
+            '-Wno-uninitialized',
+            ('-DDUMMY_mips64el_toolchain_linux_version=%s' %
+             self.m.run.asset_version('mips64el_toolchain_linux'))
+        ])
+        if configuration == 'Release':
+          # This warning is only triggered when fuzz_canvas is inlined.
+          extra_cflags.append('-Wno-strict-overflow')
+        args.update({
+          'skia_use_system_freetype2': 'false',
+          'skia_use_fontconfig':       'false',
+          'skia_enable_gpu':           'false',
+        })
+      else:
+        cc, cxx = 'gcc', 'g++'
     elif compiler == 'EMCC':
       cc   = emscripten_sdk + '/emscripten/incoming/emcc'
       cxx  = emscripten_sdk + '/emscripten/incoming/em++'
@@ -91,9 +117,6 @@ class GNFlavorUtils(default_flavor.DefaultFlavorUtils):
     if 'MSAN' in extra_tokens:
       extra_ldflags.append('-L' + clang_linux + '/msan')
 
-    args = {}
-    env = {}
-
     if configuration != 'Debug':
       args['is_debug'] = 'false'
     if 'ANGLE' in extra_tokens:
diff --git a/infra/bots/tasks.json b/infra/bots/tasks.json
index a47532d7dd..d6e93c11a1 100644
--- a/infra/bots/tasks.json
+++ b/infra/bots/tasks.json
@@ -294,6 +294,30 @@
         "Build-Debian9-GCC-arm-Release-Chromecast"
       ]
     },
+    "Build-Debian9-GCC-loongson3a-Debug": {
+      "priority": 0.8,
+      "tasks": [
+        "Build-Debian9-GCC-loongson3a-Debug"
+      ]
+    },
+    "Build-Debian9-GCC-loongson3a-Release": {
+      "priority": 0.8,
+      "tasks": [
+        "Build-Debian9-GCC-loongson3a-Release"
+      ]
+    },
+    "Build-Debian9-GCC-mips64el-Debug": {
+      "priority": 0.8,
+      "tasks": [
+        "Build-Debian9-GCC-mips64el-Debug"
+      ]
+    },
+    "Build-Debian9-GCC-mips64el-Release": {
+      "priority": 0.8,
+      "tasks": [
+        "Build-Debian9-GCC-mips64el-Release"
+      ]
+    },
     "Build-Debian9-GCC-x86-Debug": {
       "priority": 0.8,
       "tasks": [
@@ -4772,6 +4796,126 @@
       "isolate": "compile_skia.isolate",
       "priority": 0.8
     },
+    "Build-Debian9-GCC-loongson3a-Debug": {
+      "cipd_packages": [
+        {
+          "name": "skia/bots/mips64el_toolchain_linux",
+          "path": "mips64el_toolchain_linux",
+          "version": "version:4"
+        }
+      ],
+      "dimensions": [
+        "cpu:x86-64-Haswell_GCE",
+        "gpu:none",
+        "os:Debian-9.2",
+        "pool:Skia"
+      ],
+      "extra_args": [
+        "--workdir",
+        "../../..",
+        "compile",
+        "repository=<(REPO)",
+        "buildername=Build-Debian9-GCC-loongson3a-Debug",
+        "swarm_out_dir=${ISOLATED_OUTDIR}",
+        "revision=<(REVISION)",
+        "patch_repo=<(PATCH_REPO)",
+        "patch_storage=<(PATCH_STORAGE)",
+        "patch_issue=<(ISSUE)",
+        "patch_set=<(PATCHSET)"
+      ],
+      "isolate": "compile_skia.isolate",
+      "priority": 0.8
+    },
+    "Build-Debian9-GCC-loongson3a-Release": {
+      "cipd_packages": [
+        {
+          "name": "skia/bots/mips64el_toolchain_linux",
+          "path": "mips64el_toolchain_linux",
+          "version": "version:4"
+        }
+      ],
+      "dimensions": [
+        "cpu:x86-64-Haswell_GCE",
+        "gpu:none",
+        "os:Debian-9.2",
+        "pool:Skia"
+      ],
+      "extra_args": [
+        "--workdir",
+        "../../..",
+        "compile",
+        "repository=<(REPO)",
+        "buildername=Build-Debian9-GCC-loongson3a-Release",
+        "swarm_out_dir=${ISOLATED_OUTDIR}",
+        "revision=<(REVISION)",
+        "patch_repo=<(PATCH_REPO)",
+        "patch_storage=<(PATCH_STORAGE)",
+        "patch_issue=<(ISSUE)",
+        "patch_set=<(PATCHSET)"
+      ],
+      "isolate": "compile_skia.isolate",
+      "priority": 0.8
+    },
+    "Build-Debian9-GCC-mips64el-Debug": {
+      "cipd_packages": [
+        {
+          "name": "skia/bots/mips64el_toolchain_linux",
+          "path": "mips64el_toolchain_linux",
+          "version": "version:4"
+        }
+      ],
+      "dimensions": [
+        "cpu:x86-64-Haswell_GCE",
+        "gpu:none",
+        "os:Debian-9.2",
+        "pool:Skia"
+      ],
+      "extra_args": [
+        "--workdir",
+        "../../..",
+        "compile",
+        "repository=<(REPO)",
+        "buildername=Build-Debian9-GCC-mips64el-Debug",
+        "swarm_out_dir=${ISOLATED_OUTDIR}",
+        "revision=<(REVISION)",
+        "patch_repo=<(PATCH_REPO)",
+        "patch_storage=<(PATCH_STORAGE)",
+        "patch_issue=<(ISSUE)",
+        "patch_set=<(PATCHSET)"
+      ],
+      "isolate": "compile_skia.isolate",
+      "priority": 0.8
+    },
+    "Build-Debian9-GCC-mips64el-Release": {
+      "cipd_packages": [
+        {
+          "name": "skia/bots/mips64el_toolchain_linux",
+          "path": "mips64el_toolchain_linux",
+          "version": "version:4"
+        }
+      ],
+      "dimensions": [
+        "cpu:x86-64-Haswell_GCE",
+        "gpu:none",
+        "os:Debian-9.2",
+        "pool:Skia"
+      ],
+      "extra_args": [
+        "--workdir",
+        "../../..",
+        "compile",
+        "repository=<(REPO)",
+        "buildername=Build-Debian9-GCC-mips64el-Release",
+        "swarm_out_dir=${ISOLATED_OUTDIR}",
+        "revision=<(REVISION)",
+        "patch_repo=<(PATCH_REPO)",
+        "patch_storage=<(PATCH_STORAGE)",
+        "patch_issue=<(ISSUE)",
+        "patch_set=<(PATCHSET)"
+      ],
+      "isolate": "compile_skia.isolate",
+      "priority": 0.8
+    },
     "Build-Debian9-GCC-x86-Debug": {
       "dimensions": [
         "cpu:x86-64-Haswell_GCE",