Move android port code to servoshell

Signed-off-by: Jonathan Schwender <jonathan.schwender@huawei.com>
Signed-off-by: Jonathan Schwender <schwenderjonathan@gmail.com>

Cargo.toml

@@ -2,7 +2,6 @@
 resolver = "2"
 members = [
     "ports/servoshell",
-    "ports/jniapi/",
     "tests/unit/*",
     "support/crown",
 ]

etc/ci/check_dynamic_symbols.py

@@ -39,7 +39,7 @@
         'android-toolchains', 'ndk', 'toolchains', 'arm-linux-androideabi-4.9',
         'prebuilt', 'linux-x86_64', 'bin', 'arm-linux-androideabi-objdump'),
     '-T',
-    'target/android/armv7-linux-androideabi/debug/libsimpleservo.so']
+    'target/android/armv7-linux-androideabi/debug/libservoshell.so']
 ).split(b'\n')
 
 for line in objdump_output:

etc/run_in_headless_android_emulator.py

@@ -66,7 +66,7 @@ def main(avd_name, apk_path, *args):
         # in case they say something useful while we wait in subsequent steps.
         logcat_args = [
             "--format=raw",  # Print no metadata, only log messages
-            "simpleservo:D",  # Show (debug level) Rust stdio
+            "servoshell:D",  # Show (debug level) Rust stdio
             "*:S",  # Hide everything else
         ]
         with terminate_on_exit(adb + ["logcat"] + logcat_args) as logcat:

ports/servoshell/Cargo.toml

@@ -17,8 +17,16 @@ name = "servo"
 path = "main.rs"
 bench = false
 
+# Some of these dependencies are only needed for a specific target os, but
+# since build-scripts can't detect the cargo target os at build-time, we
+# must unconditionally add these dependencies. See https://github.com/rust-lang/cargo/issues/4932
 [build-dependencies]
 vergen = { version = "8.3.1", features = ["git", "git2"] }
+# Android and OpenHarmony
+gl_generator = "0.14"
+# Android only
+serde_json = { workspace = true }
+# MacOS only
 cc = "1.0"
 
 [target.'cfg(windows)'.build-dependencies]
@@ -47,26 +55,37 @@ webgl_backtrace = ["libservo/webgl_backtrace"]
 xr-profile = ["libservo/xr-profile"]
 
 [dependencies]
-# For optional feature servo_allocator/use-system-allocator
-servo_allocator = { path = "../../components/allocator" }
 libc = { workspace = true }
 libservo = { path = "../../components/servo" }
 cfg-if = { workspace = true }
 log = { workspace = true }
-url = { workspace = true }
 lazy_static = { workspace = true }
+getopts = { workspace = true }
+url = { workspace = true }
+
+[target.'cfg(target_os = "android")'.dependencies]
+android_logger = "0.14"
+ipc-channel = { workspace = true }
+jni = "0.21.1"
+libloading = "0.8"
+serde_json = { workspace = true }
+servo-media = { workspace = true }
+surfman = { workspace = true, features = ["sm-angle-default"] }
+webxr = { git = "https://github.com/servo/webxr" }
 
 
 [target.'cfg(not(target_os = "android"))'.dependencies]
 backtrace = { workspace = true }
-getopts = { workspace = true }
 
 [target.'cfg(target_env = "ohos")'.dependencies]
-# force inprocess, until libc-rs is updated to include `shm_open` and unlink.
+# force inprocess, until libc-rs 0.2.156 is released containing
+# https://github.com/rust-lang/libc/commit/9e248e212c5602cb4e98676e4c21ea0382663a12
 ipc-channel = { workspace = true, features = ["force-inprocess"] }
 
 
 [target.'cfg(not(any(target_os = "android", target_env = "ohos")))'.dependencies]
+# For optional feature servo_allocator/use-system-allocator
+servo_allocator = { path = "../../components/allocator" }
 arboard = { version = "3" }
 egui = { version = "0.26.2" }
 egui_glow = { version = "0.26.2", features = ["winit"] }

ports/servoshell/build.rs

@@ -3,8 +3,12 @@
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
 use std::error::Error;
-use std::path::Path;
+use std::fs::File;
+use std::io::Write;
+use std::path::{Path, PathBuf};
 
+use gl_generator::{Api, Fallbacks, Profile, Registry};
+use serde_json::Value;
 use vergen::EmitBuilder;
 
 fn main() -> Result<(), Box<dyn Error>> {
@@ -39,6 +43,29 @@ fn main() -> Result<(), Box<dyn Error>> {
         cc::Build::new()
             .file("platform/macos/count_threads.c")
             .compile("count_threads");
+    } else if target_os == "android" {
+        // Generate GL bindings. For now, we only support EGL.
+        let mut file = File::create(out.join("egl_bindings.rs")).unwrap();
+        Registry::new(Api::Egl, (1, 5), Profile::Core, Fallbacks::All, [])
+            .write_bindings(gl_generator::StaticStructGenerator, &mut file)
+            .unwrap();
+        println!("cargo:rustc-link-lib=EGL");
+
+        // FIXME: We need this workaround since jemalloc-sys still links
+        // to libgcc instead of libunwind, but Android NDK 23c and above
+        // don't have libgcc. We can't disable jemalloc for Android as
+        // in 64-bit aarch builds, the system allocator uses tagged
+        // pointers by default which causes the assertions in SM & mozjs
+        // to fail. See https://github.com/servo/servo/issues/32175.
+        let mut libgcc = File::create(out.join("libgcc.a")).unwrap();
+        libgcc.write_all(b"INPUT(-lunwind)").unwrap();
+        println!("cargo:rustc-link-search=native={}", out.display());
+
+        let mut default_prefs = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
+        default_prefs.push("../../resources/prefs.json");
+        let prefs: Value = serde_json::from_reader(File::open(&default_prefs).unwrap()).unwrap();
+        let file = File::create(out.join("prefs.json")).unwrap();
+        serde_json::to_writer(file, &prefs).unwrap();
     }
 
     if let Err(error) = EmitBuilder::builder()