Add ppc64le build

.github/workflows/build.yml

@@ -97,7 +97,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        arch: [x64, x86, arm64, arm, mipsel, mips64el, riscv64]
+        arch: [x64, x86, arm64, arm, mipsel, mips64el, riscv64, ppc64]
     env:
       EXTRA_FLAGS: 'target_cpu="${{ matrix.arch }}"'
       BUNDLE: naiveproxy-${{ github.event.release.tag_name }}-${{ github.job }}-${{ matrix.arch }}
@@ -141,6 +141,9 @@ jobs:
           sudo dpkg -i qemu-user-static*.deb
           # libc6-i386 interferes with x86 build
           sudo apt remove libc6-i386
+      - name: Import Debian patches (ppc64el)
+        run: ./get-ppc64le-patches.sh
+        if: ${{ matrix.arch == 'ppc64' }}
       - run: ./get-clang.sh
       - run: ccache -z
       - run: ./build.sh

src/base/allocator/partition_allocator/partition_alloc.gni

@@ -17,7 +17,7 @@ if (is_nacl) {
   has_64_bit_pointers = false
 } else if (current_cpu == "x64" || current_cpu == "arm64" ||
            current_cpu == "loong64" || current_cpu == "riscv64" ||
-           current_cpu == "mips64el") {
+           current_cpu == "mips64el" || current_cpu == "ppc64") {
   has_64_bit_pointers = true
 } else if (current_cpu == "x86" || current_cpu == "arm" || current_cpu == "mipsel") {
   has_64_bit_pointers = false

src/build/config/compiler/BUILD.gn

@@ -1365,6 +1365,10 @@ config("compiler_cpu_abi") {
         ldflags += [ "-mips64r2" ]
       }
     } else if (current_cpu == "ppc64") {
+      if (is_clang && custom_toolchain == "" && current_os != "openwrt") {
+        cflags += [ "--target=powerpc64le-linux-gnu" ]
+        ldflags += [ "--target=powerpc64le-linux-gnu" ]
+      }
       if (current_os == "aix") {
         cflags += [ "-maix64" ]
         ldflags += [ "-maix64" ]

src/build/linux/sysroot_scripts/install-sysroot.py

@@ -37,7 +37,7 @@ SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
 URL_PREFIX = 'https://commondatastorage.googleapis.com'
 URL_PATH = 'chrome-linux-sysroot/toolchain'
 
-VALID_ARCHS = ('amd64', 'i386', 'armhf', 'arm64', 'armel', 'mipsel', 'mips64el', 'riscv64')
+VALID_ARCHS = ('amd64', 'i386', 'armhf', 'arm64', 'armel', 'mipsel', 'mips64el', 'riscv64', 'ppc64el')
 
 ARCH_TRANSLATIONS = {
     'x64': 'amd64',
@@ -45,6 +45,7 @@ ARCH_TRANSLATIONS = {
     'arm': 'armhf',
     'mips': 'mipsel',
     'mips64': 'mips64el',
+    'ppc64': 'ppc64el',
 }
 
 DEFAULT_TARGET_PLATFORM = 'bullseye'

src/build/linux/sysroot_scripts/sysroot-creator.sh

@@ -99,6 +99,15 @@ DEBIAN_PACKAGES_MIPS64EL="
 DEBIAN_PACKAGES_RISCV64="
 "
 
+DEBIAN_PACKAGES_PPC64EL="
+  libasan6
+  libitm1
+  liblsan0
+  libquadmath0
+  libtsan0
+  libubsan1
+"
+
 readonly REQUIRED_TOOLS="curl xzcat"
 
 ######################################################################
@@ -221,6 +230,10 @@ SetEnvironmentVariables() {
       # RISCV64 has no support in bookworm
       APT_SOURCES_LIST=("https://snapshot.debian.org/archive/debian-ports/20230724T141507Z/ sid main")
       ;;
+    ppc64el)
+      TRIPLE=powerpc64le-linux-gnu
+      DEBIAN_PACKAGES_ARCH="${DEBIAN_PACKAGES_PPC64EL}"
+      ;;
     *)
       echo "ERROR: Unsupported architecture: $ARCH"
       Usage

src/build/linux/sysroot_scripts/sysroots.json

@@ -46,5 +46,11 @@
         "Sha1Sum": "",
         "SysrootDir": "debian_bullseye_riscv64-sysroot",
         "Tarball": "debian_bullseye_riscv64_sysroot.tar.xz"
+    },
+    "bullseye_ppc64el": {
+      "Key": "",
+      "Sha1Sum": "",
+      "SysrootDir": "debian_bullseye_ppc64el-sysroot",
+      "Tarball": "debian_bullseye_ppc64el_sysroot.tar.xz"
     }
 }

src/get-ppc64le-patches.sh

@@ -0,0 +1,40 @@
+#!/bin/sh
+
+set -ex
+
+DEBIAN_TAG_VERSION=115.0.5790.170-1
+url=https://salsa.debian.org/chromium-team/chromium/-/archive/debian/$DEBIAN_TAG_VERSION/chromium-debian-$DEBIAN_TAG_VERSION.tar.gz
+
+rm -rf chromium-debian-$DEBIAN_TAG_VERSION
+trap "rm -rf chromium-debian-$DEBIAN_TAG_VERSION" EXIT
+curl -L $url -o- | tar xzf -
+
+series="
+third_party/0001-Add-PPC64-support-for-boringssl.patch
+third_party/0001-third_party-boringssl-Properly-detect-ppc64le-in-BUI.patch
+third_party/0001-third_party-lss-Don-t-look-for-mmap2-on-ppc64.patch
+third_party/0002-third_party-lss-kernel-structs.patch
+third_party/0002-third-party-boringssl-add-generated-files.patch
+third_party/use-sysconf-page-size-on-ppc64.patch
+"
+for i in $series; do
+  patch --batch -p1 <chromium-debian-$DEBIAN_TAG_VERSION/debian/patches/ppc64le/$i || true
+done
+
+patch -p2 <<EOF
+diff --git a/src/third_party/boringssl/src/crypto/fipsmodule/modes/internal.h b/src/third_party/boringssl/src/crypto/fipsmodule/modes/internal.h
+index ecda045c59..8780f7e3d6 100644
+--- a/src/third_party/boringssl/src/crypto/fipsmodule/modes/internal.h
++++ b/src/third_party/boringssl/src/crypto/fipsmodule/modes/internal.h
+@@ -329,8 +329,8 @@ void aes_gcm_dec_kernel(const uint8_t *in, uint64_t in_bits, void *out,
+ #define GHASH_ASM_PPC64LE
+ #define GCM_FUNCREF
+ void gcm_init_p8(u128 Htable[16], const uint64_t Xi[2]);
+-void gcm_gmult_p8(uint64_t Xi[2], const u128 Htable[16]);
+-void gcm_ghash_p8(uint64_t Xi[2], const u128 Htable[16], const uint8_t *inp,
++void gcm_gmult_p8(uint8_t Xi[16], const u128 Htable[16]);
++void gcm_ghash_p8(uint8_t Xi[16], const u128 Htable[16], const uint8_t *inp,
+                   size_t len);
+ #endif
+ #endif  // OPENSSL_NO_ASM
+EOF

src/get-sysroot.sh

@@ -42,6 +42,7 @@ case "$ARCH" in
         mipsel) SYSROOT_ARCH=mipsel;;
         mips64el) SYSROOT_ARCH=mips64el;;
         riscv64) SYSROOT_ARCH=riscv64;;
+        ppc64) SYSROOT_ARCH=ppc64el;;
       esac
       if [ "$SYSROOT_ARCH" ]; then
         WITH_SYSROOT="out/sysroot-build/bullseye/bullseye_${SYSROOT_ARCH}_staging"

tests/basic.py

@@ -78,6 +78,8 @@ def start_naive(naive_args):
         with_qemu = 'mips64el'
     elif argv.target_cpu == 'riscv64':
         with_qemu = 'riscv64'
+    elif argv.target_cpu == 'ppc64':
+        with_qemu = 'ppc64el'
 
     if argv.rootfs:
         if not with_qemu:
@@ -148,15 +150,14 @@ def test_naive_once(proxy, *args, **kwargs):
     proxy = proxy.format_map(port_dict)
 
     config_file = kwargs.get('config_file', 'config.json')
-    if argv.rootfs:
-        config_file = os.path.join(argv.rootfs, config_file)
     config_content = kwargs.get('config_content')
     if config_content is not None:
         config_content = config_content.format_map(port_dict)
         with open(config_file, 'w') as f:
-            f.write('{')
-            f.write(config_content)
-            f.write('}')
+            f.write('{' + config_content + '}')
+        if argv.rootfs:
+            with open(os.path.join(argv.rootfs, config_file), 'w') as f:
+                f.write('{' + config_content + '}')
 
     naive_procs = []