meta-flutter · jwinarske · Aug 27, 2024
diff --git a/.github/workflows/flutter-engine-riscv64.yaml b/.github/workflows/flutter-engine-riscv64.yaml
@@ -0,0 +1,148 @@
+name: Linux riscv64
+
+on:
+  pull_request:
+    types: [ opened, synchronize, reopened, closed ]
+  release:
+    types: [ published, created, edited ]
+  workflow_dispatch:
+
+jobs:
+  linux-riscv64:
+
+    env:
+      # TODO - hard coded for now
+      SRCREV: "c9b9d5780da342eb3f0f5e439a7db06f7d112575"
+
+    runs-on: [self-hosted, linux, x64]
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+
+      - name: Install packages
+        run: |
+          git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
+
+      - name: Get Flutter Source
+        run: |
+          rm -rf out/linux_debug_riscv64|true
+          rm -rf out/linux_release_riscv64|true
+          rm -rf out/linux_profile_riscv64|true
+
+          export PATH=$PATH:$PWD/depot_tools
+          export VPYTHON_VIRTUALENV_ROOT=$PWD/vpython
+          gclient config --spec 'solutions=[{"name":"src/flutter","url":"https://github.com/flutter/engine.git","deps_file":"DEPS","managed":False,"custom_deps":{},"custom_vars":{"download_android_deps":False,"download_windows_deps":False,"download_linux_deps":True}}]'
+          gclient sync --force --shallow --no-history -R -D --revision $SRCREV -j$(nproc) -v
+
+          PATCH_DIR=$PWD/patches
+
+          # fetch arm64 sysroot
+          cd src
+
+          # setting system_libdir in args.gn does not work
+          git apply $PATCH_DIR/riscv64/0001-system-libdir.patch
+
+          git apply $PATCH_DIR/0001-clang-toolchain.patch
+          cd flutter
+          git apply $PATCH_DIR/0001-export-GPU-symbols.patch
+
+          git apply $PATCH_DIR/riscv64/0001-gn-riscv32-and-riscv64.patch
+          git apply $PATCH_DIR/riscv64/0002-fml-build-config-add-riscv.patch
+          git apply $PATCH_DIR/riscv64/0003-swiftshader-riscv-support.patch
+          git apply $PATCH_DIR/riscv64/0004-tonic-riscv-support.patch
+
+      - name: Fetch sysroot & toolchain
+        working-directory: src/build/linux
+        run: |
+          rm -rf debian_sid_riscv64-sysroot |true 
+          curl -L "https://drive.usercontent.google.com/download?id=1YM1OR7d_Z7KibqcUHVWuufqhsQlmH3qg&confirm=xxx" -o debian_sid_riscv64-sysroot.tar.gz
+          mkdir -p debian_sid_riscv64-sysroot
+          tar -xvzf debian_sid_riscv64-sysroot.tar.gz -C debian_sid_riscv64-sysroot
+          rm debian_sid_riscv64-sysroot.tar.gz
+
+          cd ../../flutter/buildtools/linux-x64
+
+          rm -rf recipe-sysroot-native |true 
+          curl -L "https://drive.usercontent.google.com/download?id=1gdV-1dJ4HD-EMWdFGAXKJwi8sFWnM1Qq&confirm=xxx" -o recipe-sysroot-native.tar.gz
+          tar -xvzf recipe-sysroot-native.tar.gz -C .
+          rm recipe-sysroot-native.tar.gz
+
+      - name: Build Debug
+        working-directory: src
+        run: |
+          export PATH=$PATH:$PWD/../depot_tools
+          export VPYTHON_VIRTUALENV_ROOT=$PWD/vpython
+          ./flutter/tools/gn --runtime-mode=debug \
+            --embedder-for-target \
+            --no-build-embedder-examples \
+            --enable-impeller-3d \
+            --no-goma --no-rbe \
+            --no-stripped --no-enable-unittests \
+            --no-prebuilt-dart-sdk \
+            --linux-cpu riscv64 \
+            --target-os linux \
+            --target-sysroot $PWD/build/linux/debian_sid_riscv64-sysroot \
+            --target-toolchain $PWD/flutter/buildtools/linux-x64/recipe-sysroot-native/usr \
+            --target-triple riscv64-unknown-linux-gnu
+
+          ninja -C out/linux_debug_riscv64
+
+      - name: Publish Debug
+        working-directory: src/out/linux_debug_riscv64
+        run: |
+          ls -laR exe.unstripped
+          ls -la *.so
+
+      - name: Build Release
+        working-directory: src
+        run: |
+          export PATH=$PATH:$PWD/../depot_tools
+          export VPYTHON_VIRTUALENV_ROOT=$PWD/vpython
+          ./flutter/tools/gn --runtime-mode=release \
+            --embedder-for-target \
+            --no-build-embedder-examples \
+            --enable-impeller-3d \
+            --no-goma --no-rbe \
+            --no-stripped --no-enable-unittests \
+            --no-prebuilt-dart-sdk \
+            --linux-cpu riscv64 \
+            --target-os linux \
+            --target-sysroot $PWD/build/linux/debian_sid_riscv64-sysroot \
+            --target-toolchain $PWD/flutter/buildtools/linux-x64/recipe-sysroot-native/usr \
+            --target-triple riscv64-unknown-linux-gnu
+
+          ninja -C out/linux_release_riscv64
+
+      - name: Publish Release
+        working-directory: src/out/linux_release_riscv64
+        run: |
+          ls -laR exe.unstripped
+          ls -la *.so
+
+      - name: Build Profile
+        working-directory: src
+        run: |
+          export PATH=$PATH:$PWD/../depot_tools
+          export VPYTHON_VIRTUALENV_ROOT=$PWD/vpython
+          ./flutter/tools/gn --runtime-mode=profile \
+            --embedder-for-target \
+            --no-build-embedder-examples \
+            --enable-impeller-3d \
+            --no-goma --no-rbe \
+            --no-stripped --no-enable-unittests \
+            --no-prebuilt-dart-sdk \
+            --linux-cpu riscv64 \
+            --target-os linux \
+            --target-sysroot $PWD/build/linux/debian_sid_riscv64-sysroot \
+            --target-toolchain $PWD/flutter/buildtools/linux-x64/recipe-sysroot-native/usr \
+            --target-triple riscv64-unknown-linux-gnu
+
+          ninja -C out/linux_profile_riscv64
+
+      - name: Publish Profile
+        working-directory: src/out/linux_profile_riscv64
+        run: |
+          ls -laR exe.unstripped
+          ls -la *.so
diff --git a/patches/riscv64/0001-gn-riscv32-and-riscv64.patch b/patches/riscv64/0001-gn-riscv32-and-riscv64.patch
@@ -0,0 +1,26 @@
+From 748e416e394552cac6e4be30112c3ef45d1c0ec3 Mon Sep 17 00:00:00 2001
+From: Joel Winarske <[email protected]>
+Date: Tue, 6 Aug 2024 08:03:59 -0700
+Subject: [PATCH] gn riscv32 and riscv64
+
+Signed-off-by: Joel Winarske <[email protected]>
+---
+ tools/gn | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/tools/gn b/tools/gn
+index 0be76e5477..8fee233aed 100755
+--- a/tools/gn
++++ b/tools/gn
+@@ -1015,7 +1015,7 @@ def parse_args(args):
+   parser.add_argument('--web', action='store_true', default=False)
+   parser.add_argument('--windows', dest='target_os', action='store_const', const='win')
+
+-  parser.add_argument('--linux-cpu', type=str, choices=['x64', 'x86', 'arm64', 'arm'])
++  parser.add_argument('--linux-cpu', type=str, choices=['x64', 'x86', 'arm64', 'arm', 'riscv32', 'riscv64'])
+   parser.add_argument('--fuchsia-cpu', type=str, choices=['x64', 'arm64'], default='x64')
+   parser.add_argument('--windows-cpu', type=str, choices=['x64', 'arm64', 'x86'], default='x64')
+   parser.add_argument('--simulator-cpu', type=str, choices=['x64', 'arm64'], default='x64')
+-- 
+2.45.2
+
diff --git a/patches/riscv64/0001-system-libdir.patch b/patches/riscv64/0001-system-libdir.patch
@@ -0,0 +1,26 @@
+From 2dea579a9473d42a99fafbe79e893d49ed4475bb Mon Sep 17 00:00:00 2001
+From: Joel Winarske <[email protected]>
+Date: Tue, 27 Aug 2024 14:17:06 -0700
+Subject: [PATCH] system libdir
+
+Signed-off-by: Joel Winarske <[email protected]>
+---
+ build/config/linux/pkg_config.gni | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/build/config/linux/pkg_config.gni b/build/config/linux/pkg_config.gni
+index 3deef2b..82d0f97 100644
+--- a/build/config/linux/pkg_config.gni
++++ b/build/config/linux/pkg_config.gni
+@@ -44,7 +44,7 @@ declare_args() {
+   # chrome build scheme. This variable permits controlling this for GN builds
+   # in similar fashion by setting the `system_libdir` variable in the build's
+   # args.gn file to 'lib' or 'lib64' as appropriate for the target architecture.
+-  system_libdir = "lib"
++  system_libdir = "lib/riscv64-linux-gnu"
+ }
+
+ pkg_config_script = "//build/config/linux/pkg-config.py"
+-- 
+2.25.1
+
diff --git a/patches/riscv64/0002-fml-build-config-add-riscv.patch b/patches/riscv64/0002-fml-build-config-add-riscv.patch
@@ -0,0 +1,34 @@
+From 8b34fbdace418dcf338492ac63ce1048ecc20bf5 Mon Sep 17 00:00:00 2001
+From: Joel Winarske <[email protected]>
+Date: Wed, 13 Mar 2024 21:28:43 +0000
+Subject: [PATCH] fml build config add riscv
+
+Signed-off-by: Joel Winarske <[email protected]>
+---
+ fml/build_config.h | 10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+diff --git a/fml/build_config.h b/fml/build_config.h
+index d42a88e..9ee6e04 100644
+--- a/fml/build_config.h
++++ b/fml/build_config.h
+@@ -93,6 +93,16 @@
+ #define FML_ARCH_CPU_ARM64 1
+ #define FML_ARCH_CPU_64_BITS 1
+ #define FML_ARCH_CPU_LITTLE_ENDIAN 1
++#elif defined(__riscv)
++#define FML_ARCH_CPU_RISC_FAMILY 1
++#if (__riscv_xlen == 32)
++#define FML_ARCH_CPU_RISCV32 1
++#define FML_ARCH_CPU_32_BITS 1
++#elif (__riscv_xlen == 64)
++#define FML_ARCH_CPU_RISCV64 1
++#define FML_ARCH_CPU_64_BITS 1
++#endif
++#define FML_ARCH_CPU_LITTLE_ENDIAN 1
+ #elif defined(__pnacl__)
+ #define FML_ARCH_CPU_32_BITS 1
+ #define FML_ARCH_CPU_LITTLE_ENDIAN 1
+-- 
+2.44.0
+
diff --git a/patches/riscv64/0003-swiftshader-riscv-support.patch b/patches/riscv64/0003-swiftshader-riscv-support.patch
@@ -0,0 +1,26 @@
+From 9d3788480dba3dcc27cd00d4852c968b0e5de502 Mon Sep 17 00:00:00 2001
+From: Joel Winarske <[email protected]>
+Date: Sun, 4 Aug 2024 20:41:17 +0000
+Subject: [PATCH] swiftshader-riscv
+
+Signed-off-by: Joel Winarske <[email protected]>
+---
+ third_party/swiftshader/src/Reactor/BUILD.gn | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/third_party/swiftshader/src/Reactor/BUILD.gn b/third_party/swiftshader/src/Reactor/BUILD.gn
+index 67dfeb0..dcb1361 100644
+--- a/third_party/swiftshader/src/Reactor/BUILD.gn
++++ b/third_party/swiftshader/src/Reactor/BUILD.gn
+@@ -307,7 +307,7 @@ if (supports_subzero) {
+
+ if (supports_llvm) {
+   swiftshader_source_set("swiftshader_llvm_reactor") {
+-    llvm_dir = "../../third_party/llvm-10.0"
++    llvm_dir = "../../third_party/llvm-16.0"
+
+     deps = [
+       ":swiftshader_reactor_base",
+-- 
+2.45.2
+
diff --git a/patches/riscv64/0004-tonic-riscv-support.patch b/patches/riscv64/0004-tonic-riscv-support.patch
@@ -0,0 +1,34 @@
+From 9be5e09115a693ab7fc8cee2122d0a4318fc6e71 Mon Sep 17 00:00:00 2001
+From: Joel Winarske <[email protected]>
+Date: Sun, 4 Aug 2024 20:53:56 +0000
+Subject: [PATCH] tonic riscv support
+
+Signed-off-by: Joel Winarske <[email protected]>
+---
+ third_party/tonic/common/build_config.h | 10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+diff --git a/third_party/tonic/common/build_config.h b/third_party/tonic/common/build_config.h
+index 365808a1a7..f3edb471be 100644
+--- a/third_party/tonic/common/build_config.h
++++ b/third_party/tonic/common/build_config.h
+@@ -88,6 +88,16 @@
+ #define ARCH_CPU_ARM64 1
+ #define ARCH_CPU_64_BITS 1
+ #define ARCH_CPU_LITTLE_ENDIAN 1
++#elif defined(__riscv)
++#define FML_ARCH_CPU_RISC_FAMILY 1
++#if (__riscv_xlen == 32)
++#define ARCH_CPU_RISCV32 1
++#define ARCH_CPU_32_BITS 1
++#elif (__riscv_xlen == 64)
++#define ARCH_CPU_RISCV64 1
++#define ARCH_CPU_64_BITS 1
++#endif
++#define ARCH_CPU_LITTLE_ENDIAN 1
+ #elif defined(__pnacl__)
+ #define ARCH_CPU_32_BITS 1
+ #define ARCH_CPU_LITTLE_ENDIAN 1
+-- 
+2.45.2
+