#!/bin/bash
# setup.sh - 解压工具链到母项目 (android_kernel_eebbk_sm6150) 旁边
#
# 用法:
#   git clone <toolchain-repo>  # 克隆工具链仓库
#   cd <toolchain-repo>         # 进入
#   ./setup.sh                  # 运行, 会把工具链放到母项目同级目录
#
# 最终目录结构:
#   <parent>/
#   ├── android_kernel_eebbk_sm6150/   <- 内核源码
#   └── toolchain/
#       ├── android_prebuilts_clang_host_linux-x86_clang-6443078-10.0/
#       └── binutils-2.27-install/

set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
# 工具链仓库目录的上一级 = 母项目目录
PARENT_DIR="$(dirname "$SCRIPT_DIR")"
TOOLCHAIN_DIR="$PARENT_DIR/toolchain"

echo "=== 工具链安装到: $TOOLCHAIN_DIR ==="
mkdir -p "$TOOLCHAIN_DIR"

echo "=== 解压 binutils-2.27 ==="
tar -xzf "$SCRIPT_DIR/binutils-2.27-install.tar.gz" -C "$TOOLCHAIN_DIR"
echo "完成"

echo "=== 解压 clang-11.0.1 (较大, 请稍候) ==="
tar -xzf "$SCRIPT_DIR/clang-6443078.tar.gz" -C "$TOOLCHAIN_DIR"
echo "完成"

echo ""
echo "=== 工具链就绪 ==="
ls -d "$TOOLCHAIN_DIR"/android_prebuilts_clang_host_linux-x86_clang-6443078-10.0
ls -d "$TOOLCHAIN_DIR"/binutils-2.27-install
echo ""
echo "编译内核时设置:"
echo "  export TC=$TOOLCHAIN_DIR"
echo "  export CROSS_COMPILE=\$TC/binutils-2.27-install/bin/aarch64-linux-gnu-"
echo "  export CLANG=\$TC/android_prebuilts_clang_host_linux-x86_clang-6443078-10.0"
echo "  export PATH=\$CLANG/bin:\$PATH"