From cea904e6183e980ebd9e61ced1472953dc7101e2 Mon Sep 17 00:00:00 2001
From: Yota Toyama <raviqqe@gmail.com>
Date: Fri, 26 Apr 2019 03:31:56 +0000
Subject: [PATCH] Build custom libgc

---
 .circleci/config.yml                  |  3 ++-
 .gitmodules                           |  6 +++++
 Cargo.lock                            | 26 +++++++++++++++++++
 Cargo.toml                            |  5 ++++
 README.md                             |  2 +-
 build.rs                              | 37 +++++++++++++++++++++++++++
 examples/borrow_check_free/Cargo.lock | 26 +++++++++++++++++++
 examples/dynamic_threads/Cargo.lock   | 26 +++++++++++++++++++
 examples/gc_free/Cargo.lock           | 26 +++++++++++++++++++
 examples/static_threads/Cargo.lock    | 26 +++++++++++++++++++
 src/lib.rs                            |  2 +-
 vendor/bdwgc                          |  1 +
 vendor/libatomic_ops                  |  1 +
 13 files changed, 184 insertions(+), 3 deletions(-)
 create mode 100644 .gitmodules
 create mode 100644 build.rs
 create mode 160000 vendor/bdwgc
 create mode 160000 vendor/libatomic_ops

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 6fd497f..f715ac0 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -5,7 +5,8 @@ jobs:
       - image: rust
     steps:
       - run: apt -y update --fix-missing
-      - run: apt -y install libgc-dev
+      - run: apt -y install cmake
       - checkout
+      - run: git submodule update --init --recursive
       - run: cargo build
       - run: cd examples && ./test.sh
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..284c541
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "vendor/bdwgc"]
+	path = vendor/bdwgc
+	url = https://github.com/raviqqe/bdwgc
+[submodule "vendor/libatomic_ops"]
+	path = vendor/libatomic_ops
+	url = https://github.com/ivmai/libatomic_ops
diff --git a/Cargo.lock b/Cargo.lock
index caef28e..49bc55b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,16 +1,42 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+[[package]]
+name = "autotools"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "bdwgc-alloc"
 version = "0.2.1"
 dependencies = [
+ "autotools 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cmake 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "cc"
+version = "1.0.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "cmake"
+version = "0.1.38"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "libc"
 version = "0.2.51"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [metadata]
+"checksum autotools 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "774fd1b2d459a939302a0bad631a3de176b8bd5f87cbfc28ceb1f6c18d731094"
+"checksum cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)" = "5e5f3fee5eeb60324c2781f1e41286bdee933850fff9b3c672587fed5ec58c83"
+"checksum cmake 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)" = "96210eec534fc3fbfc0452a63769424eaa80205fda6cea98e5b61cb3d97bcec8"
 "checksum libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)" = "bedcc7a809076656486ffe045abeeac163da1b558e963a31e29fbfbeba916917"
diff --git a/Cargo.toml b/Cargo.toml
index 60cca5b..894ca00 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,6 +6,11 @@ authors = ["swgillespie <sean.william.g@gmail.com>", "Yota Toyama <raviqqe@gmail
 repository = "https://github.com/raviqqe/bdwgc-alloc"
 edition = "2018"
 license = "MIT"
+build = "build.rs"
 
 [dependencies]
 libc = "0.2"
+
+[build-dependencies]
+autotools = "0.2"
+cmake = "0.1"
diff --git a/README.md b/README.md
index 1a616d7..b993313 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 [![Crate](https://img.shields.io/crates/v/bdwgc-alloc.svg?style=flat-square)](https://crates.io/crates/bdwgc-alloc)
 [![License](https://img.shields.io/github/license/raviqqe/bdwgc-alloc.svg?style=flat-square)](LICENSE)
 
-[`GlobalAlloc`](https://doc.rust-lang.org/std/alloc/trait.GlobalAlloc.html) implementation for [bdwgc](https://github.com/ivmai/bdwgc), the conservative garbage collector.
+[`GlobalAlloc`](https://doc.rust-lang.org/std/alloc/trait.GlobalAlloc.html) implementation for [bdwgc](https://github.com/ivmai/bdwgc), the conservative garbage collector. This crate supports only Unix-like operating systems currently.
 
 ## Usage
 
diff --git a/build.rs b/build.rs
new file mode 100644
index 0000000..9b50d4f
--- /dev/null
+++ b/build.rs
@@ -0,0 +1,37 @@
+extern crate cmake;
+
+const LIB_ATOMIC_OPS_DIR: &str = "vendor/libatomic_ops";
+const LIB_GC_DIR: &str = "vendor/bdwgc";
+
+fn main() {
+    for dir in &[LIB_ATOMIC_OPS_DIR, LIB_GC_DIR] {
+        std::process::Command::new("sh")
+            .arg("-c")
+            .arg(format!("cd {} && ./autogen.sh", dir))
+            .output()
+            .unwrap();
+    }
+
+    let dst = autotools::Config::new(LIB_ATOMIC_OPS_DIR)
+        .cflag("-fPIC")
+        .build();
+
+    println!(
+        "cargo:rustc-link-search=native={}",
+        dst.join("lib").display()
+    );
+    println!("cargo:rustc-link-lib=static=atomic_ops");
+
+    let dst = autotools::Config::new(LIB_GC_DIR)
+        .cflag(format!(
+            "-I{} -L/lib/x86_64-linux-gnu -lpthread -fPIC",
+            dst.join("include").display()
+        ))
+        .build();
+
+    println!(
+        "cargo:rustc-link-search=native={}",
+        dst.join("lib").display()
+    );
+    println!("cargo:rustc-link-lib=static=gc");
+}
diff --git a/examples/borrow_check_free/Cargo.lock b/examples/borrow_check_free/Cargo.lock
index f1ecc6b..e557553 100644
--- a/examples/borrow_check_free/Cargo.lock
+++ b/examples/borrow_check_free/Cargo.lock
@@ -1,9 +1,19 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+[[package]]
+name = "autotools"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "bdwgc-alloc"
 version = "0.2.1"
 dependencies = [
+ "autotools 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cmake 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -14,10 +24,26 @@ dependencies = [
  "bdwgc-alloc 0.2.1",
 ]
 
+[[package]]
+name = "cc"
+version = "1.0.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "cmake"
+version = "0.1.38"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "libc"
 version = "0.2.51"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [metadata]
+"checksum autotools 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "774fd1b2d459a939302a0bad631a3de176b8bd5f87cbfc28ceb1f6c18d731094"
+"checksum cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)" = "5e5f3fee5eeb60324c2781f1e41286bdee933850fff9b3c672587fed5ec58c83"
+"checksum cmake 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)" = "96210eec534fc3fbfc0452a63769424eaa80205fda6cea98e5b61cb3d97bcec8"
 "checksum libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)" = "bedcc7a809076656486ffe045abeeac163da1b558e963a31e29fbfbeba916917"
diff --git a/examples/dynamic_threads/Cargo.lock b/examples/dynamic_threads/Cargo.lock
index 6e4c229..153a025 100644
--- a/examples/dynamic_threads/Cargo.lock
+++ b/examples/dynamic_threads/Cargo.lock
@@ -1,12 +1,35 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+[[package]]
+name = "autotools"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "bdwgc-alloc"
 version = "0.2.1"
 dependencies = [
+ "autotools 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cmake 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "cc"
+version = "1.0.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "cmake"
+version = "0.1.38"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "dynamic_threads"
 version = "0.1.0"
@@ -20,4 +43,7 @@ version = "0.2.51"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [metadata]
+"checksum autotools 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "774fd1b2d459a939302a0bad631a3de176b8bd5f87cbfc28ceb1f6c18d731094"
+"checksum cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)" = "5e5f3fee5eeb60324c2781f1e41286bdee933850fff9b3c672587fed5ec58c83"
+"checksum cmake 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)" = "96210eec534fc3fbfc0452a63769424eaa80205fda6cea98e5b61cb3d97bcec8"
 "checksum libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)" = "bedcc7a809076656486ffe045abeeac163da1b558e963a31e29fbfbeba916917"
diff --git a/examples/gc_free/Cargo.lock b/examples/gc_free/Cargo.lock
index 2e8b414..4400875 100644
--- a/examples/gc_free/Cargo.lock
+++ b/examples/gc_free/Cargo.lock
@@ -1,12 +1,35 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+[[package]]
+name = "autotools"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "bdwgc-alloc"
 version = "0.2.1"
 dependencies = [
+ "autotools 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cmake 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "cc"
+version = "1.0.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "cmake"
+version = "0.1.38"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "gc_free"
 version = "0.1.0"
@@ -20,4 +43,7 @@ version = "0.2.51"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [metadata]
+"checksum autotools 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "774fd1b2d459a939302a0bad631a3de176b8bd5f87cbfc28ceb1f6c18d731094"
+"checksum cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)" = "5e5f3fee5eeb60324c2781f1e41286bdee933850fff9b3c672587fed5ec58c83"
+"checksum cmake 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)" = "96210eec534fc3fbfc0452a63769424eaa80205fda6cea98e5b61cb3d97bcec8"
 "checksum libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)" = "bedcc7a809076656486ffe045abeeac163da1b558e963a31e29fbfbeba916917"
diff --git a/examples/static_threads/Cargo.lock b/examples/static_threads/Cargo.lock
index d90985f..8907da6 100644
--- a/examples/static_threads/Cargo.lock
+++ b/examples/static_threads/Cargo.lock
@@ -1,12 +1,35 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+[[package]]
+name = "autotools"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "bdwgc-alloc"
 version = "0.2.1"
 dependencies = [
+ "autotools 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cmake 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "cc"
+version = "1.0.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "cmake"
+version = "0.1.38"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "libc"
 version = "0.2.51"
@@ -20,4 +43,7 @@ dependencies = [
 ]
 
 [metadata]
+"checksum autotools 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "774fd1b2d459a939302a0bad631a3de176b8bd5f87cbfc28ceb1f6c18d731094"
+"checksum cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)" = "5e5f3fee5eeb60324c2781f1e41286bdee933850fff9b3c672587fed5ec58c83"
+"checksum cmake 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)" = "96210eec534fc3fbfc0452a63769424eaa80205fda6cea98e5b61cb3d97bcec8"
 "checksum libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)" = "bedcc7a809076656486ffe045abeeac163da1b558e963a31e29fbfbeba916917"
diff --git a/src/lib.rs b/src/lib.rs
index 4105b3d..b2482d7 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -13,7 +13,7 @@ struct GcStackBase {
     reg_base: *const c_void,
 }
 
-#[link(name = "gc")]
+#[link(name = "gc", kind = "static")]
 extern "C" {
     fn GC_allow_register_threads() -> c_void;
     fn GC_free(ptr: *mut c_void);
diff --git a/vendor/bdwgc b/vendor/bdwgc
new file mode 160000
index 0000000..51a44b9
--- /dev/null
+++ b/vendor/bdwgc
@@ -0,0 +1 @@
+Subproject commit 51a44b9cdb0f28e60509a6d930e7787163d110c4
diff --git a/vendor/libatomic_ops b/vendor/libatomic_ops
new file mode 160000
index 0000000..6287479
--- /dev/null
+++ b/vendor/libatomic_ops
@@ -0,0 +1 @@
+Subproject commit 6287479564021893f2bf81149d0738bcb492b81c