Merge pull request #888 from xushiwei/q

mv llcppg => github.com/goplus/llcppg

.github/workflows/doc.yml

@@ -0,0 +1,74 @@
+name: Docs
+
+on:
+  push:
+    branches: [ "**" ]
+  pull_request:
+    branches: [ "**" ]
+
+jobs:
+  doc_verify:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Install embedme
+        run: npm install -g embedme
+
+      - name: Verify README.md embedded code
+        run: npx embedme --verify README.md
+
+  doc_test:
+    strategy:
+      matrix:
+        os:
+          - macos-latest
+          - ubuntu-24.04
+    runs-on: ${{matrix.os}}
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.20'
+
+      - name: Install dependencies on macOS
+        if: startsWith(matrix.os, 'macos')
+        run: |
+          set -e
+          set -x
+          source doc/_readme/scripts/install_macos.sh
+
+      - name: Install dependencies on Ubuntu
+        if: startsWith(matrix.os, 'ubuntu')
+        run: |
+          set -e
+          set -x
+          source doc/_readme/scripts/install_ubuntu.sh
+
+      - name: Install llgo
+        run: |
+          set -e
+          set -x
+          git() {
+            if [ "$1" = "clone" ]; then
+              # do nothing because we already have the branch
+              cd ..
+            else
+              command git "$@"
+            fi
+          }
+          source doc/_readme/scripts/install_llgo.sh
+
+      - name: Test doc code blocks
+        run: |
+          set -e
+          set -x
+          source doc/_readme/scripts/run.sh
+

.github/workflows/go.yml

@@ -5,45 +5,91 @@ name: Go
 
 on:
   push:
-    branches: [ "main" ]
+    branches: [ "**" ]
   pull_request:
-    branches: [ "main" ]
+    branches: [ "**" ]
 
 jobs:
+  fmt:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.20'
+
+      - name: Check formatting
+        run: |
+          if [ -n "$(go fmt ./...)" ]; then
+            echo "Some files are not properly formatted. Please run 'go fmt ./...'"
+            exit 1
+          fi
 
   test:
     strategy:
       matrix:
-        os: [macos-latest, ubuntu-latest]
+        os:
+          - macos-latest
+          - ubuntu-24.04
         llvm: [18]
-    runs-on: ${{ matrix.os }}
+    runs-on: ${{matrix.os}}
     steps:
       - uses: actions/checkout@v4
 
-      - name: Update Homebrew
+      - name: Install dependencies
-        # needed as long as LLVM 18 is still fresh
-        if: matrix.llvm == 18 && startsWith(matrix.os, 'macos')
-        run: brew update
-      - name: Install LLVM ${{ matrix.llvm }} and bdw-gc
         if: startsWith(matrix.os, 'macos')
         run: |
-          HOMEBREW_NO_AUTO_UPDATE=1 brew install llvm@${{ matrix.llvm }} bdw-gc
+          brew update
-          echo `brew --prefix llvm@${{ matrix.llvm }}`/bin >> $GITHUB_PATH
+          brew install llvm@${{matrix.llvm}} bdw-gc openssl libffi
-      - name: Install LLVM ${{ matrix.llvm }} and libgc-dev
+          brew link --force libffi
+          echo "$(brew --prefix llvm@${{matrix.llvm}})/bin" >> $GITHUB_PATH
+
+          # Install optional deps for demos.
+          #
+          # NOTE: Keep this list updated as new deps are introduced.
+          opt_deps=(
+            cjson       # for github.com/goplus/llgo/c/cjson
+            sqlite      # for github.com/goplus/llgo/c/sqlite
+            python@3.12 # for github.com/goplus/llgo/py
+          )
+          brew install "${opt_deps[@]}"
+
+      - name: Install dependencies
         if: startsWith(matrix.os, 'ubuntu')
         run: |
-          echo "deb http://apt.llvm.org/$(lsb_release -cs)/ llvm-toolchain-$(lsb_release -cs)-${{ matrix.llvm }} main" | sudo tee /etc/apt/sources.list.d/llvm.list
+          echo "deb http://apt.llvm.org/$(lsb_release -cs)/ llvm-toolchain-$(lsb_release -cs)-${{matrix.llvm}} main" | sudo tee /etc/apt/sources.list.d/llvm.list
           wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
           sudo apt-get update
-          sudo apt-get install -y llvm-${{ matrix.llvm }}-dev clang-${{ matrix.llvm }} lld-${{ matrix.llvm }} pkg-config libgc-dev libcjson-dev libsqlite3-dev python3.11-dev
+          sudo apt-get install -y llvm-${{matrix.llvm}}-dev clang-${{matrix.llvm}} libclang-${{matrix.llvm}}-dev lld-${{matrix.llvm}} pkg-config libgc-dev libssl-dev zlib1g-dev libffi-dev libcjson-dev
-          echo /usr/lib/llvm-${{ matrix.llvm }}/bin >> $GITHUB_PATH
+          echo "/usr/lib/llvm-${{matrix.llvm}}/bin" >> $GITHUB_PATH
-    
+
+          # Install optional deps for demos.
+          #
+          # NOTE: Keep this list updated as new deps are introduced.
+          opt_deps=(
+            libcjson-dev   # for github.com/goplus/llgo/c/cjson
+            libsqlite3-dev # for github.com/goplus/llgo/c/sqlite
+            python3.12-dev # for github.com/goplus/llgo/py
+          )
+          sudo apt-get install -y "${opt_deps[@]}"
+
+      - name: Install further optional dependencies for demos
+        run: |
+          wget -P ./_demo/llama2-c https://huggingface.co/karpathy/tinyllamas/resolve/main/stories15M.bin
+          py_deps=(
+            numpy # for github.com/goplus/llgo/py/numpy
+            torch # for github.com/goplus/llgo/py/torch
+          )
+          pip3.12 install --break-system-packages "${py_deps[@]}"
+
       - name: Clang information
         run: |
           echo $PATH
           which clang
           clang --version
-        
+
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
@@ -52,41 +98,59 @@ jobs:
       - name: Build
         run: go build -v ./...
 
+      - name: Install
+        run: go install ./...
+
       - name: Test
-        if: matrix.os != 'macos-latest'
+        if: ${{!startsWith(matrix.os, 'macos')}}
         run: go test -v ./...
 
       - name: Test with coverage
-        if: matrix.os == 'macos-latest'
+        if: startsWith(matrix.os, 'macos')
         run: go test -v -coverprofile="coverage.txt" -covermode=atomic ./...
 
-      - name: Install
-        run: go install ./...
-      
       - name: LLGO tests
-        if: matrix.os != 'ubuntu-latest'
+        if: ${{!startsWith(matrix.os, 'ubuntu')}}
         run: |
-          echo "Test result on ${{ matrix.os }} with LLVM ${{ matrix.llvm }}" > result.md
+          echo "Test result on ${{matrix.os}} with LLVM ${{matrix.llvm}}" > result.md
-          LLGOROOT=$PWD bash .github/workflows/test_llgo.sh
+          bash .github/workflows/test_llgo.sh
-      
+
-      - name: Test _demo and _pydemo
+      - name: chore/_xtool build tests
         run: |
-          set +e
+          cd chore/_xtool
-          LLGOROOT=$PWD bash .github/workflows/test_demo.sh
+          llgo build -v ./...
-          exit 0
+
-      
+      - name: LLDB tests
+        if: ${{startsWith(matrix.os, 'macos')}}
+        run: |
+          echo "Test lldb with llgo plugin on ${{matrix.os}} with LLVM ${{matrix.llvm}}"
+          bash _lldb/runtest.sh -v
+
+      - name: Test demos
+        run: |
+          # TODO(lijie): force python3-embed to be linked with python-3.12-embed
+          # Currently, python3-embed is python-3.13-embed, doesn't work with pytorch
+          # Will remove this after pytorch is fixed.
+          pcdir=$HOME/pc
+          mkdir -p $pcdir
+          libdir=$(pkg-config --variable=libdir python-3.12-embed)
+          echo "libdir: $libdir"
+          ln -s $libdir/pkgconfig/python-3.12-embed.pc $pcdir/python3-embed.pc
+          export PKG_CONFIG_PATH=$pcdir
+          bash .github/workflows/test_demo.sh
+
       - name: Show test result
         run: cat result.md
 
       - name: PR comment with test result
-        uses: thollander/actions-comment-pull-request@v2
+        uses: thollander/actions-comment-pull-request@v3
         if: false
         with:
           filePath: result.md
-          comment_tag: test-result-on-${{ matrix.os }}-with-llvm-${{ matrix.llvm }}
+          comment_tag: test-result-on-${{matrix.os}}-with-llvm-${{matrix.llvm}}
 
       - name: Upload coverage reports to Codecov
-        uses: codecov/codecov-action@v4
+        uses: codecov/codecov-action@v5
         with:
-          token: ${{ secrets.CODECOV_TOKEN }}
+          token: ${{secrets.CODECOV_TOKEN}}
           slug: goplus/llgo

.github/workflows/populate_darwin_sysroot.sh

@@ -0,0 +1,40 @@
+#!/bin/bash
+
+set -e
+
+TMPDIR="$(mktemp -d)"
+export TMPDIR
+trap 'rm -rf "${TMPDIR}"' EXIT
+
+DARWIN_AMD64_LLVM_PREFIX=.sysroot/darwin/amd64/usr/local/opt/llvm@18
+DARWIN_ARM64_LLVM_PREFIX=.sysroot/darwin/arm64/opt/homebrew/opt/llvm@18
+mkdir -p "${DARWIN_AMD64_LLVM_PREFIX}" "${DARWIN_ARM64_LLVM_PREFIX}"
+
+BREW_LLVM_FORMULA_JSON="$(mktemp)"
+curl -fsSL https://formulae.brew.sh/api/formula/llvm.json > "${BREW_LLVM_FORMULA_JSON}"
+BREW_LLVM_AMD64_BOTTLE_URL=$(jq -r '.bottle.stable.files.sonoma.url' "${BREW_LLVM_FORMULA_JSON}")
+BREW_LLVM_ARM64_BOTTLE_URL=$(jq -r '.bottle.stable.files.arm64_sonoma.url' "${BREW_LLVM_FORMULA_JSON}")
+curl -fsSL -H "Authorization: Bearer QQ==" "${BREW_LLVM_AMD64_BOTTLE_URL}" | tar -xzf - --strip-components=2 -C "${DARWIN_AMD64_LLVM_PREFIX}"
+curl -fsSL -H "Authorization: Bearer QQ==" "${BREW_LLVM_ARM64_BOTTLE_URL}" | tar -xzf - --strip-components=2 -C "${DARWIN_ARM64_LLVM_PREFIX}"
+
+patch_homebrew_lib_dir() {
+	local LIB_DIR="$1"
+	local HOMEBREW_PREFIX="$2"
+	for DYLIB_FILE in "${LIB_DIR}"/*.dylib; do
+		if [[ -f "${DYLIB_FILE}" ]]; then
+			ID=$(otool -D "${DYLIB_FILE}" | grep '@@HOMEBREW_PREFIX@@' | awk '{print $1}')
+			if [[ -n "${ID}" ]]; then
+				NEW_ID=${ID/'@@HOMEBREW_PREFIX@@'/${HOMEBREW_PREFIX}}
+				install_name_tool -id "${NEW_ID}" "${DYLIB_FILE}"
+			fi
+
+			DEPS=$(otool -L "${DYLIB_FILE}" | grep '@@HOMEBREW_PREFIX@@' | awk '{print $1}')
+			for DEP in ${DEPS}; do
+				NEW_DEP=${DEP/'@@HOMEBREW_PREFIX@@'/${HOMEBREW_PREFIX}}
+				install_name_tool -change "${DEP}" "${NEW_DEP}" "${DYLIB_FILE}"
+			done
+		fi
+	done
+}
+patch_homebrew_lib_dir "${DARWIN_AMD64_LLVM_PREFIX}/lib" /usr/lib
+patch_homebrew_lib_dir "${DARWIN_ARM64_LLVM_PREFIX}/lib" /opt/homebrew

.github/workflows/populate_linux_sysroot.sh

@@ -0,0 +1,143 @@
+#!/bin/bash
+
+set -e
+
+TMPDIR="$(mktemp -d)"
+export TMPDIR
+trap 'rm -rf "${TMPDIR}"' EXIT
+
+LINUX_AMD64_PREFIX=.sysroot/linux/amd64
+LINUX_ARM64_PREFIX=.sysroot/linux/arm64
+mkdir -p "${LINUX_AMD64_PREFIX}" "${LINUX_ARM64_PREFIX}"
+
+POPULATE_LINUX_SYSROOT_SCRIPT="$(mktemp)"
+cat > "${POPULATE_LINUX_SYSROOT_SCRIPT}" << EOF
+#!/bin/bash
+
+export DEBIAN_FRONTEND=noninteractive
+
+apt-get update
+apt-get install -y lsb-release gnupg2 wget rsync
+
+echo "deb http://apt.llvm.org/\$(lsb_release -cs)/ llvm-toolchain-\$(lsb_release -cs)-18 main" | tee /etc/apt/sources.list.d/llvm.list
+wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add -
+apt-get update
+apt-get install -y llvm-18-dev
+
+error() {
+	echo -e "\$1" >&2
+	exit 1
+}
+
+exclude_list=()
+include_list=()
+
+exclude_list+=(--exclude "/bin")
+exclude_list+=(--exclude "/boot")
+exclude_list+=(--exclude "/boot*")
+exclude_list+=(--exclude "/dev")
+exclude_list+=(--exclude "/etc")
+exclude_list+=(--exclude "/home")
+exclude_list+=(--exclude "/lib/dhcpd")
+exclude_list+=(--exclude "/lib/firmware")
+exclude_list+=(--exclude "/lib/hdparm")
+exclude_list+=(--exclude "/lib/ifupdown")
+exclude_list+=(--exclude "/lib/modules")
+exclude_list+=(--exclude "/lib/modprobe.d")
+exclude_list+=(--exclude "/lib/modules-load.d")
+exclude_list+=(--exclude "/lib/resolvconf")
+exclude_list+=(--exclude "/lib/startpar")
+exclude_list+=(--exclude "/lib/systemd")
+exclude_list+=(--exclude "/lib/terminfo")
+exclude_list+=(--exclude "/lib/udev")
+exclude_list+=(--exclude "/lib/xtables")
+exclude_list+=(--exclude "/lib/ssl/private")
+exclude_list+=(--exclude "/lost+found")
+exclude_list+=(--exclude "/media")
+exclude_list+=(--exclude "/mnt")
+exclude_list+=(--exclude "/proc")
+exclude_list+=(--exclude "/root")
+exclude_list+=(--exclude "/run")
+exclude_list+=(--exclude "/sbin")
+exclude_list+=(--exclude "/srv")
+exclude_list+=(--exclude "/sys")
+exclude_list+=(--exclude "/tmp")
+exclude_list+=(--exclude "/usr/bin")
+exclude_list+=(--exclude "/usr/games")
+exclude_list+=(--exclude "/usr/sbin")
+exclude_list+=(--exclude "/usr/share")
+exclude_list+=(--exclude "/usr/src")
+exclude_list+=(--exclude "/usr/local/bin")
+exclude_list+=(--exclude "/usr/local/etc")
+exclude_list+=(--exclude "/usr/local/games")
+exclude_list+=(--exclude "/usr/local/man")
+exclude_list+=(--exclude "/usr/local/sbin")
+exclude_list+=(--exclude "/usr/local/share")
+exclude_list+=(--exclude "/usr/local/src")
+exclude_list+=(--exclude "/usr/lib/ssl/private")
+exclude_list+=(--exclude "/var")
+exclude_list+=(--exclude "/snap")
+exclude_list+=(--exclude "*python*")
+
+include_list+=(--include "*.a")
+include_list+=(--include "*.so")
+include_list+=(--include "*.so.*")
+include_list+=(--include "*.h")
+include_list+=(--include "*.hh")
+include_list+=(--include "*.hpp")
+include_list+=(--include "*.hxx")
+include_list+=(--include "*.pc")
+include_list+=(--include "*.def")
+include_list+=(--include "*.inc")
+include_list+=(--include "/lib")
+include_list+=(--include "/lib32")
+include_list+=(--include "/lib64")
+include_list+=(--include "/libx32")
+include_list+=(--include "*/")
+
+do-sync() {
+	from=\$1
+	to=\$2
+
+	args=()
+	args+=(-a)
+	args+=(-z)
+	args+=(-m)
+	args+=(-d)
+	args+=(-h)
+	args+=(--keep-dirlinks)
+	args+=("--info=progress2")
+	args+=(--delete)
+	args+=(--prune-empty-dirs)
+	args+=(--sparse)
+	args+=(--links)
+	args+=(--copy-unsafe-links)
+	args+=("\${exclude_list[@]}")
+	args+=("\${include_list[@]}")
+	args+=(--exclude "*")
+	args+=("\${from}")
+	args+=("\${to}")
+
+	echo "\${args[@]}"
+	rsync "\${args[@]}"
+
+	exit \$?
+}
+
+do-sync / /sysroot/
+EOF
+chmod +x "${POPULATE_LINUX_SYSROOT_SCRIPT}"
+
+populate_linux_sysroot() {
+	local ARCH="$1"
+	local PREFIX="$2"
+	docker run \
+		--rm \
+		--platform "linux/${ARCH}" \
+		-v "$(pwd)/${PREFIX}":/sysroot \
+		-v "${POPULATE_LINUX_SYSROOT_SCRIPT}":/populate_linux_sysroot.sh \
+		debian:bullseye \
+		/populate_linux_sysroot.sh
+}
+populate_linux_sysroot amd64 "${LINUX_AMD64_PREFIX}"
+populate_linux_sysroot arm64 "${LINUX_ARM64_PREFIX}"

.github/workflows/release-build.yml

@@ -0,0 +1,58 @@
+name: Release Build
+
+on:
+  push:
+    tags:
+      - "*"
+
+jobs:
+  populate-darwin-sysroot:
+    runs-on: macos-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+      - name: Populate Darwin sysroot
+        run: bash .github/workflows/populate_darwin_sysroot.sh
+      - name: Create Darwin sysroot tarball
+        run: tar -czvf .sysroot/darwin.tar.gz -C .sysroot darwin
+      - name: Upload Darwin sysroot tarball
+        uses: actions/upload-artifact@v4
+        with:
+          name: darwin-sysroot-tarball
+          path: .sysroot/darwin.tar.gz
+          compression-level: 0
+  build:
+    runs-on: ubuntu-latest
+    needs: populate-darwin-sysroot
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: 1.20.x
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+      - name: Download Darwin sysroot tarball
+        uses: actions/download-artifact@v4
+        with:
+          name: darwin-sysroot-tarball
+          path: .sysroot
+      - name: Populate Darwin sysroot
+        run: tar -xzvf .sysroot/darwin.tar.gz -C .sysroot
+      - name: Populate Linux sysroot
+        run: bash .github/workflows/populate_linux_sysroot.sh
+      - name: Run GoReleaser
+        env:
+          GITHUB_TOKEN: ${{github.token}}
+        run: |
+          docker run \
+            --rm \
+            -e GITHUB_TOKEN=${GITHUB_TOKEN} \
+            -v /var/run/docker.sock:/var/run/docker.sock \
+            -v $(pwd):/go/src/llgo \
+            -w /go/src/llgo \
+            ghcr.io/goreleaser/goreleaser-cross:v1.22 \
+            release --clean --skip nfpm,snapcraft

.github/workflows/test_demo.sh

@@ -1,14 +1,15 @@
 #!/bin/bash
+set -e
 
-# llgo run subdirectories under _demo and _pydemo
+# llgo run subdirectories under _demo and _pydemo that contain *.go files
 total=0
 failed=0
 failed_cases=""
 for d in ./_demo/* ./_pydemo/*; do
-  total=$((total+1))
+  if [ -d "$d" ] && [ -n "$(ls "$d"/*.go 2>/dev/null)" ]; then
-  if [ -d "$d" ]; then
+    total=$((total+1))
     echo "Testing $d"
-    if ! llgo run -v "$d"; then
+    if ! (cd "$d" && llgo run .); then
       echo "FAIL"
       failed=$((failed+1))
       failed_cases="$failed_cases\n* :x: $d"

.github/workflows/test_llgo.sh

@@ -1,10 +1,8 @@
 #!/bin/bash
 set -e
 
-export LLGOROOT=$PWD
-
 testcmd=/tmp/test
-llgo build -o $testcmd ./_test
+llgo build -o $testcmd ./c/bdwgc/_test
 cases=$($testcmd)
 total=$(echo "$cases" | wc -l | tr -d ' ')
 failed=0

.gitignore

@@ -26,6 +26,9 @@ build.dir/
 # Test binary, built with `go test -c`
 *.test
 
+# Debug symbols
+*.dSYM
+
 # Output of the go coverage tool, specifically when used with LiteIDE
 *.out
 *.swp
@@ -35,3 +38,7 @@ build.dir/
 
 # Go workspace file
 go.work*
+
+# GoReleaser
+.dist/
+.sysroot/

.goreleaser.yaml

@@ -0,0 +1,145 @@
+version: 2
+
+dist: .dist
+
+env:
+  - SYSROOT_DARWIN_AMD64={{.Env.PWD}}/.sysroot/darwin/amd64
+  - SYSROOT_DARWIN_ARM64={{.Env.PWD}}/.sysroot/darwin/arm64
+  - SYSROOT_LINUX_AMD64={{.Env.PWD}}/.sysroot/linux/amd64
+  - SYSROOT_LINUX_ARM64={{.Env.PWD}}/.sysroot/linux/arm64
+  - CGO_ENABLED=1
+  - CGO_CXXFLAGS=-std=c++17
+
+before:
+  hooks:
+    - go mod download
+
+builds:
+  - id: llgo-darwin-amd64
+    main: ./cmd/llgo
+    flags:
+      - -tags=darwin,amd64,byollvm
+    ldflags:
+      - -X github.com/goplus/llgo/x/env.buildVersion=v{{.Version}}
+      - -X github.com/goplus/llgo/x/env.buildTime={{.Date}}
+      - -X github.com/goplus/llgo/xtool/env/llvm.ldLLVMConfigBin=/usr/local/opt/llvm@18/bin/llvm-config
+    env:
+      - CC=o64-clang
+      - CXX=o64-clang++
+      - CGO_CPPFLAGS=-I{{.Env.SYSROOT_DARWIN_AMD64}}/usr/local/opt/llvm@18/include -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
+      - CGO_LDFLAGS=-L{{.Env.SYSROOT_DARWIN_AMD64}}/usr/local/opt/llvm@18/lib -Wl,-search_paths_first -Wl,-headerpad_max_install_names -lLLVM-18 -lz -lm
+    targets:
+      - darwin_amd64
+    mod_timestamp: "{{.CommitTimestamp}}"
+  - id: llgo-darwin-arm64
+    main: ./cmd/llgo
+    flags:
+      - -tags=darwin,arm64,byollvm
+    ldflags:
+      - -X github.com/goplus/llgo/x/env.buildVersion=v{{.Version}}
+      - -X github.com/goplus/llgo/x/env.buildTime={{.Date}}
+      - -X github.com/goplus/llgo/xtool/env/llvm.ldLLVMConfigBin=/opt/homebrew/opt/llvm@18/bin/llvm-config
+    env:
+      - CC=oa64-clang
+      - CXX=oa64-clang++
+      - CGO_CPPFLAGS=-I{{.Env.SYSROOT_DARWIN_ARM64}}/opt/homebrew/opt/llvm@18/include -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
+      - CGO_LDFLAGS=-L{{.Env.SYSROOT_DARWIN_ARM64}}/opt/homebrew/opt/llvm@18/lib -Wl,-search_paths_first -Wl,-headerpad_max_install_names -lLLVM-18 -lz -lm
+    targets:
+      - darwin_arm64
+    mod_timestamp: "{{.CommitTimestamp}}"
+  - id: llgo-linux-amd64
+    main: ./cmd/llgo
+    flags:
+      - -tags=linux,amd64,byollvm
+    ldflags:
+      - -X github.com/goplus/llgo/x/env.buildVersion=v{{.Version}}
+      - -X github.com/goplus/llgo/x/env.buildTime={{.Date}}
+      - -X github.com/goplus/llgo/xtool/env/llvm.ldLLVMConfigBin=/usr/lib/llvm-18/bin/llvm-config
+    env:
+      - CC=x86_64-linux-gnu-gcc
+      - CXX=x86_64-linux-gnu-g++
+      - CGO_CPPFLAGS=--sysroot={{.Env.SYSROOT_LINUX_AMD64}} -I{{.Env.SYSROOT_LINUX_AMD64}}/usr/include/llvm-18 -I{{.Env.SYSROOT_LINUX_AMD64}}/usr/include/llvm-c-18 -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
+      - CGO_LDFLAGS=--sysroot={{.Env.SYSROOT_LINUX_AMD64}} -L{{.Env.SYSROOT_LINUX_AMD64}}/usr/lib/llvm-18/lib -lLLVM-18
+    targets:
+      - linux_amd64
+    mod_timestamp: "{{.CommitTimestamp}}"
+  - id: llgo-linux-arm64
+    main: ./cmd/llgo
+    flags:
+      - -tags=linux,arm64,byollvm
+    ldflags:
+      - -X github.com/goplus/llgo/x/env.buildVersion=v{{.Version}}
+      - -X github.com/goplus/llgo/x/env.buildTime={{.Date}}
+      - -X github.com/goplus/llgo/xtool/env/llvm.ldLLVMConfigBin=/usr/lib/llvm-18/bin/llvm-config
+    env:
+      - CC=aarch64-linux-gnu-gcc
+      - CXX=aarch64-linux-gnu-g++
+      - CGO_CPPFLAGS=--sysroot={{.Env.SYSROOT_LINUX_ARM64}} -I{{.Env.SYSROOT_LINUX_ARM64}}/usr/include/llvm-18 -I{{.Env.SYSROOT_LINUX_ARM64}}/usr/include/llvm-c-18 -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
+      - CGO_LDFLAGS=--sysroot={{.Env.SYSROOT_LINUX_ARM64}} -L{{.Env.SYSROOT_LINUX_ARM64}}/usr/lib/llvm-18/lib -lLLVM-18
+    targets:
+      - linux_arm64
+    mod_timestamp: "{{.CommitTimestamp}}"
+
+archives:
+  - format: tar.gz
+    name_template: >-
+      {{.ProjectName}}{{.Version}}.{{.Os}}-{{.Arch}}
+      {{- if .Arm}}v{{.Arm}}{{end}}
+    files:
+      - LICENSE
+      - README.md
+
+checksum:
+  name_template: "{{.ProjectName}}{{.Version}}.checksums.txt"
+
+nfpms:
+  - package_name: llgo
+    vendor: goplus
+    homepage: https://github.com/goplus/llgo
+    maintainer: Aofei Sheng <aofei@aofeisheng.com>
+    description: |
+      LLGo is a Go compiler based on LLVM in order to better integrate Go with the C ecosystem including Python. It's a
+      subproject of the Go+ project.
+
+      LLGo aims to expand the boundaries of Go/Go+, providing limitless possibilities such as:
+
+      - Game development
+      - AI and data science
+      - WebAssembly
+      - Embedded development
+      - ...
+    license: Apache-2.0
+    formats:
+      - deb
+      - rpm
+    file_name_template: >-
+      {{.ProjectName}}{{.Version}}.{{.Os}}-{{.Arch}}
+      {{- if .Arm}}v{{.Arm}}{{end}}
+    bindir: /usr/local/bin
+
+snapcrafts:
+  - name: llgo
+    title: A Go compiler based on LLVM
+    summary: A Go compiler based on LLVM
+    description: |
+      LLGo is a Go compiler based on LLVM in order to better integrate Go with the C ecosystem including Python. It's a
+      subproject of the Go+ project.
+
+      LLGo aims to expand the boundaries of Go/Go+, providing limitless possibilities such as:
+
+      - Game development
+      - AI and data science
+      - WebAssembly
+      - Embedded development
+      - ...
+    license: Apache-2.0
+    confinement: classic
+    name_template: >-
+      {{.ProjectName}}{{.Version}}.{{.Os}}-{{.Arch}}
+      {{- if .Arm}}v{{.Arm}}{{end}}
+
+snapshot:
+  name_template: '{{trimprefix .Summary "v"}}'
+
+release:
+  prerelease: auto

README.md

@@ -27,11 +27,13 @@ LLGo := Go + C + Python
 LLGo is compatible with C and Python through the language's **Application Binary Interface (ABI)**, while LLGo is compatible with Go through its **syntax (source code)**.
 
 
-## C standard libary support
+## C/C++ standard libary support
 
-You can import a C standard library in LLGo!
+You can import a C/C++ standard library in LLGo!
 
 * [c](https://pkg.go.dev/github.com/goplus/llgo/c)
+* [c/syscall](https://pkg.go.dev/github.com/goplus/llgo/c/syscall)
+* [c/sys](https://pkg.go.dev/github.com/goplus/llgo/c/sys)
 * [c/os](https://pkg.go.dev/github.com/goplus/llgo/c/os)
 * [c/math](https://pkg.go.dev/github.com/goplus/llgo/c/math)
 * [c/math/cmplx](https://pkg.go.dev/github.com/goplus/llgo/c/math/cmplx)
@@ -40,9 +42,13 @@ You can import a C standard library in LLGo!
 * [c/pthread/sync](https://pkg.go.dev/github.com/goplus/llgo/c/pthread/sync)
 * [c/sync/atomic](https://pkg.go.dev/github.com/goplus/llgo/c/sync/atomic)
 * [c/time](https://pkg.go.dev/github.com/goplus/llgo/c/time)
+* [c/net](https://pkg.go.dev/github.com/goplus/llgo/c/net)
+* [cpp/std](https://pkg.go.dev/github.com/goplus/llgo/cpp/std)
 
 Here is a simple example:
 
+<!-- embedme doc/_readme/llgo_simple/simple.go -->
+
 ```go
 package main
 
@@ -69,6 +75,51 @@ llgo run .
 ```
 
 
+## How support C/C++ and Python
+
+LLGo use `go:linkname` to link an extern symbol througth its ABI:
+
+<!-- embedme doc/_readme/llgo_call_c/call_c.go#L3-L6 -->
+
+```go
+import _ "unsafe" // for go:linkname
+
+//go:linkname Sqrt C.sqrt
+func Sqrt(x float64) float64
+```
+
+You can directly integrate it into [your own code](_demo/linkname/linkname.go):
+
+<!-- embedme doc/_readme/llgo_call_c/call_c.go -->
+
+```go
+package main
+
+import _ "unsafe" // for go:linkname
+
+//go:linkname Sqrt C.sqrt
+func Sqrt(x float64) float64
+
+func main() {
+	println("sqrt(2) =", Sqrt(2))
+}
+```
+
+Or put it into a package (see [c/math](c/math/math.go)):
+
+<!-- embedme doc/_readme/llgo_call_cmath/call_cmath.go -->
+
+```go
+package main
+
+import "github.com/goplus/llgo/c/math"
+
+func main() {
+	println("sqrt(2) =", math.Sqrt(2))
+}
+```
+
+
 ## Python support
 
 You can import a Python library in LLGo!
@@ -92,6 +143,8 @@ Note: For third-party libraries (such as pandas and pytorch), you still need to
 
 Here is an example:
 
+<!-- embedme doc/_readme/llgo_call_py/call_py.go -->
+
 ```go
 package main
 
@@ -109,6 +162,8 @@ func main() {
 
 It is equivalent to the following Python code:
 
+<!-- embedme doc/_readme/llgo_call_py/call_math.py -->
+
 ```py
 import math
 
@@ -120,6 +175,8 @@ Here, We call `py.Float(2)` to create a Python number 2, and pass it to Python
 
 Let's look at a slightly more complex example. For example, we use `numpy` to calculate:
 
+<!-- embedme doc/_readme/llgo_py_list/py_list.go -->
+
 ```go
 package main
 
@@ -171,10 +228,16 @@ The currently supported libraries include:
 * [c/bdwgc](https://pkg.go.dev/github.com/goplus/llgo/c/bdwgc)
 * [c/cjson](https://pkg.go.dev/github.com/goplus/llgo/c/cjson)
 * [c/clang](https://pkg.go.dev/github.com/goplus/llgo/c/clang)
+* [c/libuv](https://pkg.go.dev/github.com/goplus/llgo/c/libuv)
 * [c/llama2](https://pkg.go.dev/github.com/goplus/llgo/c/llama2)
+* [c/lua](https://pkg.go.dev/github.com/goplus/llgo/c/lua)
+* [c/neco](https://pkg.go.dev/github.com/goplus/llgo/c/neco)
+* [c/openssl](https://pkg.go.dev/github.com/goplus/llgo/c/openssl)
 * [c/raylib](https://pkg.go.dev/github.com/goplus/llgo/c/raylib)
 * [c/sqlite](https://pkg.go.dev/github.com/goplus/llgo/c/sqlite)
 * [c/zlib](https://pkg.go.dev/github.com/goplus/llgo/c/zlib)
+* [cpp/inih](https://pkg.go.dev/github.com/goplus/llgo/cpp/inih)
+* [cpp/llvm](https://pkg.go.dev/github.com/goplus/llgo/cpp/llvm)
 
 Here are some examples related to them:
 
@@ -186,7 +249,7 @@ Here are some examples related to them:
 
 ## Go syntax support
 
-All Go syntax is already supported. Here are some examples:
+All Go syntax (not including `cgo`) is already supported. Here are some examples:
 
 * [concat](_demo/concat/concat.go): define a variadic function
 * [genints](_demo/genints/genints.go): various forms of closure usage (including C function, recv.method and anonymous function)
@@ -195,7 +258,7 @@ All Go syntax is already supported. Here are some examples:
 * [goroutine](_demo/goroutine/goroutine.go): goroutine demo
 
 
-## Defer
+### Defer
 
 LLGo `defer` does not support usage in loops. This is not a bug but a feature, because we think that using `defer` in a loop is a very unrecommended practice.
 
@@ -220,33 +283,70 @@ Here are the Go packages that can be imported correctly:
 * [unicode/utf8](https://pkg.go.dev/unicode/utf8)
 * [unicode/utf16](https://pkg.go.dev/unicode/utf16)
 * [math](https://pkg.go.dev/math)
+* [math/big](https://pkg.go.dev/math/big) (partially)
 * [math/bits](https://pkg.go.dev/math/bits)
 * [math/cmplx](https://pkg.go.dev/math/cmplx)
+* [math/rand](https://pkg.go.dev/math/rand)
+* [net/url](https://pkg.go.dev/net/url)
+* [errors](https://pkg.go.dev/errors)
+* [context](https://pkg.go.dev/context)
+* [io](https://pkg.go.dev/io)
+* [io/fs](https://pkg.go.dev/io/fs)
+* [io/ioutil](https://pkg.go.dev/io/ioutil)
+* [log](https://pkg.go.dev/log)
+* [flag](https://pkg.go.dev/flag)
 * [sort](https://pkg.go.dev/sort)
+* [bytes](https://pkg.go.dev/bytes)
+* [bufio](https://pkg.go.dev/bufio)
+* [strings](https://pkg.go.dev/strings)
 * [strconv](https://pkg.go.dev/strconv)
+* [path](https://pkg.go.dev/path)
+* [path/filepath](https://pkg.go.dev/path/filepath)
 * [sync/atomic](https://pkg.go.dev/sync/atomic)
 * [sync](https://pkg.go.dev/sync) (partially)
 * [syscall](https://pkg.go.dev/syscall) (partially)
-* [errors](https://pkg.go.dev/errors) (partially)
+* [runtime](https://pkg.go.dev/runtime) (partially)
-* [io](https://pkg.go.dev/io) (partially)
-* [io/fs](https://pkg.go.dev/io/fs) (partially)
 * [os](https://pkg.go.dev/os) (partially)
+* [os/exec](https://pkg.go.dev/os/exec) (partially)
 * [fmt](https://pkg.go.dev/fmt) (partially)
 * [reflect](https://pkg.go.dev/reflect) (partially)
 * [time](https://pkg.go.dev/time) (partially)
+* [encoding](https://pkg.go.dev/encoding)
+* [encoding/binary](https://pkg.go.dev/encoding/binary)
+* [encoding/hex](https://pkg.go.dev/encoding/hex)
+* [encoding/base32](https://pkg.go.dev/encoding/base32)
+* [encoding/base64](https://pkg.go.dev/encoding/base64)
+* [encoding/csv](https://pkg.go.dev/encoding/csv)
+* [net/textproto](https://pkg.go.dev/net/textproto)
+* [hash](https://pkg.go.dev/hash)
+* [hash/adler32](https://pkg.go.dev/hash/adler32)
+* [hash/crc32](https://pkg.go.dev/hash/crc32) (partially)
+* [hash/crc64](https://pkg.go.dev/hash/crc64)
+* [crypto](https://pkg.go.dev/crypto)
+* [crypto/md5](https://pkg.go.dev/crypto/md5)
+* [crypto/sha1](https://pkg.go.dev/crypto/sha1)
+* [crypto/sha256](https://pkg.go.dev/crypto/sha256)
+* [crypto/sha512](https://pkg.go.dev/crypto/sha512) (partially)
+* [crypto/hmac](https://pkg.go.dev/crypto/hmac) (partially)
+* [crypto/rand](https://pkg.go.dev/crypto/rand) (partially)
+* [crypto/subtle](https://pkg.go.dev/crypto/subtle) (partially)
+* [regexp](https://pkg.go.dev/regexp)
+* [regexp/syntax](https://pkg.go.dev/regexp/syntax)
+* [go/token](https://pkg.go.dev/go/token)
+* [go/scanner](https://pkg.go.dev/go/scanner)
 
 
 ## Dependencies
 
-- [Go 1.20+](https://go.dev) (build only)
+- [Go 1.20+](https://go.dev)
 - [LLVM 18](https://llvm.org)
 - [LLD 18](https://lld.llvm.org)
 - [Clang 18](https://clang.llvm.org)
 - [pkg-config 0.29+](https://www.freedesktop.org/wiki/Software/pkg-config/)
 - [bdwgc/libgc 8.0+](https://www.hboehm.info/gc/)
-- [cJSON 1.7+](https://github.com/DaveGamble/cJSON) (optional, for [github.com/goplus/llgo/c/cjson](https://pkg.go.dev/github.com/goplus/llgo/c/cjson))
+- [OpenSSL 3.0+](https://www.openssl.org/)
-- [SQLite 3](https://www.sqlite.org) (optional, for [github.com/goplus/llgo/c/sqlite](https://pkg.go.dev/github.com/goplus/llgo/c/sqlite))
+- [zlib 1.2+](https://www.zlib.net)
-- [Python 3.11+](https://www.python.org) (optional, for [github.com/goplus/llgo/py](https://pkg.go.dev/github.com/goplus/llgo/py))
+- [Python 3.12+](https://www.python.org) (optional, for [github.com/goplus/llgo/py](https://pkg.go.dev/github.com/goplus/llgo/py))
 
 ## How to install
 
@@ -254,30 +354,28 @@ Follow these steps to generate the `llgo` command (its usage is the same as the
 
 ### on macOS
 
+<!-- embedme doc/_readme/scripts/install_macos.sh#L2-L1000 -->
+
 ```sh
-brew update # execute if needed
+brew update
-brew install llvm@18 pkg-config libgc
+brew install llvm@18 bdw-gc openssl cjson libffi
-brew install cjson sqlite python@3.12 # optional
+brew install python@3.12 # optional
-export PATH=$(brew --prefix llvm@18)/bin:$PATH # you may want to add this to your shell RC file, e.g. ~/.zshrc
+brew link --force libffi
-git clone https://github.com/goplus/llgo.git
+go install -v github.com/goplus/llgo/cmd/llgo@latest
-cd llgo
+
-export LLGOROOT="/path/to/llgo" # Replace this with the root directory of the llgo project
-go install -v ./...
 ```
 
 ### on Linux (Debian/Ubuntu)
 
+<!-- embedme doc/_readme/scripts/install_ubuntu.sh#L2-L1000 -->
+
 ```sh
 echo "deb http://apt.llvm.org/$(lsb_release -cs)/ llvm-toolchain-$(lsb_release -cs)-18 main" | sudo tee /etc/apt/sources.list.d/llvm.list
 wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
-sudo apt-get update # execute if needed
+sudo apt-get update
-sudo apt-get install -y llvm-18-dev clang-18 lld-18 pkg-config libgc-dev
+sudo apt-get install -y llvm-18-dev clang-18 libclang-18-dev lld-18 pkg-config libgc-dev libssl-dev zlib1g-dev libcjson-dev libsqlite3-dev
-sudo apt-get install -y libcjson-dev libsqlite3-dev python3.12-dev # optional
+sudo apt-get install -y python3.12-dev # optional
-export PATH=/usr/lib/llvm-18/bin:$PATH # you may want to add this to your shell RC file, e.g. ~/.bashrc
+go install -v github.com/goplus/llgo/cmd/llgo@latest
-git clone https://github.com/goplus/llgo.git
-cd llgo
-export LLGOROOT="/path/to/llgo" # Replace this with the root directory of the llgo project
-go install -v ./...
 ```
 
 ### on Windows
@@ -295,9 +393,13 @@ TODO
 
 How do I generate these tools?
 
+<!-- embedme doc/_readme/scripts/install_llgo.sh#L2-L1000 -->
+
 ```sh
-export CC=clang CXX=clang++ # only for go build; optional if you have other compatible compilers
+git clone https://github.com/goplus/llgo.git
-go install -v ./...  # compile all tools except pydump
+cd llgo
+go install -v ./cmd/...
+go install -v ./chore/...  # compile all tools except pydump
 cd chore/_xtool
 llgo install ./...   # compile pydump
 go install github.com/goplus/hdq/chore/pysigfetch@v0.8.1  # compile pysigfetch

_cmptest/_bigsqrt2/sqrt2.go

@@ -0,0 +1,47 @@
+package main
+
+import (
+	"fmt"
+	"math"
+	"math/big"
+)
+
+func main() {
+	// We'll do computations with 200 bits of precision in the mantissa.
+	const prec = 200
+
+	// Compute the square root of 2 using Newton's Method. We start with
+	// an initial estimate for sqrt(2), and then iterate:
+	//     x_{n+1} = 1/2 * ( x_n + (2.0 / x_n) )
+
+	// Since Newton's Method doubles the number of correct digits at each
+	// iteration, we need at least log_2(prec) steps.
+	steps := int(math.Log2(prec))
+
+	// Initialize values we need for the computation.
+	two := new(big.Float).SetPrec(prec).SetInt64(2)
+	half := new(big.Float).SetPrec(prec).SetFloat64(0.5)
+
+	// Use 1 as the initial estimate.
+	x := new(big.Float).SetPrec(prec).SetInt64(1)
+
+	// We use t as a temporary variable. There's no need to set its precision
+	// since big.Float values with unset (== 0) precision automatically assume
+	// the largest precision of the arguments when used as the result (receiver)
+	// of a big.Float operation.
+	t := new(big.Float)
+
+	// Iterate.
+	for i := 0; i <= steps; i++ {
+		t.Quo(two, x)  // t = 2.0 / x_n
+		t.Add(x, t)    // t = x_n + (2.0 / x_n)
+		x.Mul(half, t) // x_{n+1} = 0.5 * t
+	}
+
+	// We can use the usual fmt.Printf verbs since big.Float implements fmt.Formatter
+	fmt.Printf("sqrt(2) = %.50f\n", x)
+
+	// Print the error between 2 and x*x.
+	t.Mul(x, x) // t = x*x
+	fmt.Printf("error = %e\n", t.Sub(two, t))
+}

_cmptest/_goparsedemo/parse.go

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"fmt"
+	"go/parser"
+	"go/token"
+)
+
+func main() {
+	fset := token.NewFileSet() // positions are relative to fset
+
+	src := `package foo
+
+import (
+	"fmt"
+	"time"
+)
+
+func bar() {
+	fmt.Println(time.Now())
+}`
+
+	// Parse src but stop after processing the imports.
+	f, err := parser.ParseFile(fset, "", src, parser.ImportsOnly)
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+
+	// Print the imports from the file's AST.
+	for _, s := range f.Imports {
+		fmt.Println(s.Path.Value)
+	}
+}

_cmptest/_jsondemo/json.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"unsafe"
+)
+
+func main() {
+	s := `{"name":"math","items":[{"name":"sqrt","sig":"(x, /)"},{"name":"pi"}]}`
+	data := unsafe.Slice(unsafe.StringData(s), len(s))
+	var v any
+	json.Unmarshal(data, &v)
+	b, _ := json.MarshalIndent(v, "", "  ")
+	fmt.Println(string(b))
+}

_cmptest/_timeout/timer.go

@@ -0,0 +1,19 @@
+package main
+
+import (
+	"fmt"
+	"time"
+)
+
+var c chan int
+
+func handle(int) {}
+
+func main() {
+	select {
+	case m := <-c:
+		handle(m)
+	case <-time.After(time.Second / 10):
+		fmt.Println("timed out")
+	}
+}

_cmptest/base64demo/base64.go

@@ -0,0 +1,48 @@
+package main
+
+import (
+	"encoding/base32"
+	"encoding/base64"
+	"encoding/hex"
+	"fmt"
+	"log"
+)
+
+func base64Demo() {
+	msg := "Hello, 世界"
+	encoded := base64.StdEncoding.EncodeToString([]byte(msg))
+	fmt.Println(encoded)
+	decoded, err := base64.StdEncoding.DecodeString(encoded)
+	if err != nil {
+		fmt.Println("decode error:", err)
+		return
+	}
+	fmt.Println(string(decoded))
+}
+
+func base32Demo() {
+	str := "JBSWY3DPFQQHO33SNRSCC==="
+	dst := make([]byte, base32.StdEncoding.DecodedLen(len(str)))
+	n, err := base32.StdEncoding.Decode(dst, []byte(str))
+	if err != nil {
+		fmt.Println("decode error:", err)
+		return
+	}
+	dst = dst[:n]
+	fmt.Printf("%q\n", dst)
+}
+
+func hexDemo() {
+	const s = "48656c6c6f20476f7068657221"
+	decoded, err := hex.DecodeString(s)
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Printf("%s\n", decoded)
+
+}
+func main() {
+	base64Demo()
+	base32Demo()
+	hexDemo()
+}

_cmptest/bigintdemo/fib.go

@@ -0,0 +1,63 @@
+package main
+
+import (
+	"fmt"
+	"math/big"
+)
+
+func fib() {
+	// Initialize two big ints with the first two numbers in the sequence.
+	a := big.NewInt(0)
+	b := big.NewInt(1)
+
+	// Initialize limit as 10^99, the smallest integer with 100 digits.
+	var limit big.Int
+	limit.Exp(big.NewInt(10), big.NewInt(99), nil)
+
+	// Loop while a is smaller than 1e100.
+	for a.Cmp(&limit) < 0 {
+		// Compute the next Fibonacci number, storing it in a.
+		a.Add(a, b)
+		// Swap a and b so that b is the next number in the sequence.
+		a, b = b, a
+	}
+	fmt.Println(a) // 100-digit Fibonacci number
+}
+
+func abs() {
+	a := big.NewInt(64)
+	b := big.NewInt(-52)
+	a.Set(b)
+	a.Abs(a)
+	a.Set(big.NewInt(-164))
+	a.Abs(a)
+	fmt.Println("value: ", a.String())
+}
+
+func neg() {
+	fmt.Println("value: ", big.NewInt(-64).Neg(big.NewInt(-64)))
+	fmt.Println("value: ", big.NewInt(64).Neg(big.NewInt(64)))
+	fmt.Println("value: ", big.NewInt(0).Neg(big.NewInt(0)))
+}
+
+func calc() {
+	a := big.NewInt(64)
+	b := big.NewInt(-52)
+	c := big.NewInt(54)
+	fmt.Println("value:", a.Add(a, b))
+	fmt.Println("value:", a.Sub(b, c))
+	d := big.NewInt(10)
+	e := big.NewInt(4)
+	fmt.Println("value:", d.Mul(d, e))
+}
+
+func bitop() {
+	a := big.NewInt(4)
+	fmt.Println("value:", a.Lsh(a, 1))
+	b := big.NewInt(16)
+	fmt.Println("value:", b.Rsh(b, 2))
+}
+
+func main() {
+	bitop()
+}

_cmptest/crcdemo/crc.go

@@ -0,0 +1,28 @@
+package main
+
+import (
+	"fmt"
+	"hash/adler32"
+	"hash/crc32"
+	"hash/crc64"
+)
+
+func crc64Demo() {
+	crc := crc64.MakeTable(crc64.ECMA)
+	fmt.Printf("%016x\n", crc64.Checksum([]byte("Hello world"), crc))
+}
+
+func crc32Demo() {
+	crc32q := crc32.MakeTable(crc32.IEEE)
+	fmt.Printf("%08x\n", crc32.Checksum([]byte("Hello world"), crc32q))
+}
+
+func adler32Demo() {
+	fmt.Printf("%08x\n", adler32.Checksum([]byte("Hello world")))
+}
+
+func main() {
+	adler32Demo()
+	crc32Demo()
+	crc64Demo()
+}

_cmptest/csvdemo/csv.go

@@ -0,0 +1,30 @@
+package main
+
+import (
+	"encoding/csv"
+	"fmt"
+	"io"
+	"log"
+	"strings"
+)
+
+func main() {
+	in := `first_name,last_name,username
+"Rob","Pike",rob
+Ken,Thompson,ken
+"Robert","Griesemer","gri"
+`
+	r := csv.NewReader(strings.NewReader(in))
+
+	for {
+		record, err := r.Read()
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			log.Fatal(err)
+		}
+
+		fmt.Println(record)
+	}
+}

_cmptest/ctxcancel/ctx.go

@@ -0,0 +1,39 @@
+package main
+
+import (
+	"context"
+	"fmt"
+)
+
+func main() {
+	// gen generates integers in a separate goroutine and
+	// sends them to the returned channel.
+	// The callers of gen need to cancel the context once
+	// they are done consuming generated integers not to leak
+	// the internal goroutine started by gen.
+	gen := func(ctx context.Context) <-chan int {
+		dst := make(chan int)
+		n := 1
+		go func() {
+			for {
+				select {
+				case <-ctx.Done():
+					return // returning not to leak the goroutine
+				case dst <- n:
+					n++
+				}
+			}
+		}()
+		return dst
+	}
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel() // cancel when we are finished consuming integers
+
+	for n := range gen(ctx) {
+		fmt.Println(n)
+		if n == 5 {
+			break
+		}
+	}
+}

_cmptest/envexpand/expand.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"fmt"
+	"os"
+)
+
+func main() {
+	mapper := func(placeholderName string) string {
+		switch placeholderName {
+		case "DAY_PART":
+			return "morning"
+		case "NAME":
+			return "Gopher"
+		}
+		return ""
+	}
+
+	fmt.Println(os.Expand("Good ${DAY_PART}, $NAME!", mapper))
+}

_cmptest/flagdemo/flagdemo.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"os"
+)
+
+func main() {
+	fmt.Println("args:", os.Args[1:])
+	if len(os.Args) == 1 {
+		os.Args = []string{"flagdemo", "-cpu", "100"}
+	}
+
+	verbose := flag.Bool("v", false, "verbose")
+	cpu := flag.Int("cpu", 1, "cpu number")
+	host := flag.String("host", ":8888", "host")
+	flag.Parse()
+
+	fmt.Println("host:", *host, "cpu:", *cpu, "verbose:", *verbose)
+}

_cmptest/goscandemo/scan.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"fmt"
+	"go/scanner"
+	"go/token"
+)
+
+func main() {
+	// src is the input that we want to tokenize.
+	src := []byte("cos(x) + 1i*sin(x) // Euler")
+
+	// Initialize the scanner.
+	var s scanner.Scanner
+	fset := token.NewFileSet()                      // positions are relative to fset
+	file := fset.AddFile("", fset.Base(), len(src)) // register input "file"
+	s.Init(file, src, nil /* no error handler */, scanner.ScanComments)
+
+	// Repeated calls to Scan yield the token sequence found in the input.
+	for {
+		pos, tok, lit := s.Scan()
+		if tok == token.EOF {
+			break
+		}
+		fmt.Printf("%s\t%s\t%q\n", fset.Position(pos), tok, lit)
+	}
+}

_cmptest/hmacdemo/hmac.go

@@ -0,0 +1,15 @@
+package main
+
+import (
+	"crypto/hmac"
+	"crypto/sha1"
+	"fmt"
+	"io"
+)
+
+func main() {
+	h := hmac.New(sha1.New, []byte("<key>"))
+	io.WriteString(h, "The fog is getting thicker!")
+	io.WriteString(h, "And Leon's getting laaarger!")
+	fmt.Printf("%x", h.Sum(nil))
+}

_cmptest/ioutildemo/ioutil.go

@@ -0,0 +1,19 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"strings"
+)
+
+func main() {
+	r := strings.NewReader("Go is a general-purpose language designed with systems programming in mind.")
+
+	b, err := ioutil.ReadAll(r)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	fmt.Printf("%s\n", b)
+}

_cmptest/md5demo/md5.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"crypto"
+	"crypto/md5"
+	"fmt"
+	"io"
+)
+
+func main() {
+	h := md5.New()
+	io.WriteString(h, "The fog is getting thicker!")
+	io.WriteString(h, "And Leon's getting laaarger!")
+	fmt.Printf("%x\n", h.Sum(nil))
+
+	h = crypto.MD5.New()
+	io.WriteString(h, "The fog is getting thicker!")
+	io.WriteString(h, "And Leon's getting laaarger!")
+	fmt.Printf("%x\n", h.Sum(nil))
+}

_cmptest/osexec/exec.go

@@ -0,0 +1,24 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"runtime"
+
+	"github.com/goplus/llgo/xtool/env/llvm"
+)
+
+func main() {
+	ls := "ls"
+	if runtime.GOOS == "windows" {
+		ls = "dir"
+	}
+	cmd := exec.Command(ls)
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	cmd.Run()
+
+	dir := llvm.New("").BinDir()
+	fmt.Println(dir)
+}

_cmptest/osproc/exec.go

@@ -0,0 +1,30 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"runtime"
+)
+
+func main() {
+	ls := "ls"
+	args := []string{ls, "-l"}
+	if runtime.GOOS == "windows" {
+		ls = "dir"
+		args = []string{ls}
+	}
+	lspath, _ := exec.LookPath(ls)
+	if lspath != "" {
+		ls = lspath
+	}
+	proc, err := os.StartProcess(ls, args, &os.ProcAttr{
+		Files: []*os.File{nil, os.Stdout, os.Stderr},
+	})
+	if err != nil {
+		fmt.Println("os.StartProcess error:", err)
+		return
+	}
+	proc.Wait()
+	fmt.Println("proc.Wait done")
+}

_cmptest/pipedemo/pipe.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+	"fmt"
+	"io"
+)
+
+func main() {
+	data := []byte("This is some data that needs to be stored in Body.")
+	pr, pw := io.Pipe()
+	go func() {
+		defer pw.Close()
+		if _, err := pw.Write(data); err != nil {
+			fmt.Println("Error writing to pipe:", err)
+			return
+		}
+	}()
+	defer pr.Close()
+
+	readData, err := io.ReadAll(pr)
+	if err != nil {
+		fmt.Println("Error reading from Body:", err)
+		return
+	}
+	fmt.Println("Body:", string(readData))
+}

_cmptest/printfdemo/demo.go

@@ -0,0 +1,12 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/goplus/llgo/xtool/nm"
+)
+
+func main() {
+	sym := nm.Symbol{Name: "abc", Type: nm.Text}
+	fmt.Printf("%016x %c %s\n", sym.Addr, sym.Type, sym.Name)
+}

_cmptest/readfiledemo/readf.go

@@ -0,0 +1,25 @@
+package main
+
+import (
+	"fmt"
+	"os"
+)
+
+func main() {
+	fileName := "err.log"
+	os.WriteFile(fileName, []byte("123"), 0644)
+
+	_, err := os.Stat(fileName)
+	if os.IsNotExist(err) {
+		fmt.Fprintf(os.Stderr, "File %s not found\n", fileName)
+		return
+	}
+
+	data, err := os.ReadFile(fileName)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "ReadFile: %v\n", err)
+		return
+	}
+
+	fmt.Printf("%s\n", data)
+}

_cmptest/regexdemo/regex.go

@@ -0,0 +1,11 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/goplus/llgo/xtool/env"
+)
+
+func main() {
+	fmt.Println(env.ExpandEnv("$(pkg-config --libs bdw-gc)"))
+}

_cmptest/sha1demo/sha1.go

@@ -0,0 +1,14 @@
+package main
+
+import (
+	"crypto/sha1"
+	"fmt"
+	"io"
+)
+
+func main() {
+	h := sha1.New()
+	io.WriteString(h, "The fog is getting thicker!")
+	io.WriteString(h, "And Leon's getting laaarger!")
+	fmt.Printf("%x", h.Sum(nil))
+}

_cmptest/sha256demo/sha256.go

@@ -0,0 +1,14 @@
+package main
+
+import (
+	"crypto/sha256"
+	"fmt"
+	"io"
+)
+
+func main() {
+	h := sha256.New()
+	io.WriteString(h, "The fog is getting thicker!")
+	io.WriteString(h, "And Leon's getting laaarger!")
+	fmt.Printf("%x", h.Sum(nil))
+}

_cmptest/sha512demo/sha512.go

@@ -0,0 +1,14 @@
+package main
+
+import (
+	"crypto/sha512"
+	"fmt"
+	"io"
+)
+
+func main() {
+	h := sha512.New()
+	io.WriteString(h, "The fog is getting thicker!")
+	io.WriteString(h, "And Leon's getting laaarger!")
+	fmt.Printf("%x", h.Sum(nil))
+}

_cmptest/strconv/strconv.go

@@ -1,7 +1,12 @@
 package main
 
-import "strconv"
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
 
 func main() {
-	println(strconv.Itoa(-123))
+	fmt.Println(strconv.Itoa(-123))
+	fmt.Println(strings.Split("abc,def,123", ","))
 }

_cmptest/urldemo/url.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"net/url"
+)
+
+func main() {
+	u, err := url.Parse("http://foo.example.com/foo?bar=1")
+	if err != nil {
+		log.Fatal(err)
+	}
+	u.Scheme = "https"
+	u.Host = "bar.example.com"
+	q := u.Query()
+	q.Set("bar", "2")
+	u.RawQuery = q.Encode()
+	fmt.Println(u)
+}

_demo/async/async/async.go

@@ -0,0 +1,31 @@
+package async
+
+import (
+	_ "unsafe"
+)
+
+type Void = [0]byte
+
+type Future[T any] interface {
+	Then(cb func(T))
+}
+
+type future[T any] struct {
+	cb func(func(T))
+}
+
+func (f *future[T]) Then(cb func(T)) {
+	f.cb(cb)
+}
+
+func Async[T any](fn func(func(T))) Future[T] {
+	return &future[T]{fn}
+}
+
+func Run[T any](future Future[T]) T {
+	var ret T
+	future.Then(func(v T) {
+		ret = v
+	})
+	return ret
+}

_demo/async/main.go

@@ -0,0 +1,23 @@
+package main
+
+import (
+	"time"
+
+	"github.com/goplus/llgo/_demo/async/async"
+	"github.com/goplus/llgo/_demo/async/timeout"
+)
+
+func Sleep(i int, d time.Duration) async.Future[int] {
+	return async.Async(func(resolve func(int)) {
+		timeout.Timeout(d).Then(func(async.Void) {
+			resolve(i)
+		})
+	})
+}
+
+func main() {
+	async.Run(async.Async(func(resolve func(async.Void)) {
+		println("read file")
+		defer resolve(async.Void{})
+	}))
+}

_demo/async/timeout/timeout.go

@@ -0,0 +1,16 @@
+package timeout
+
+import (
+	"time"
+
+	"github.com/goplus/llgo/_demo/async/async"
+)
+
+func Timeout(d time.Duration) async.Future[async.Void] {
+	return async.Async(func(resolve func(async.Void)) {
+		go func() {
+			time.Sleep(d)
+			resolve(async.Void{})
+		}()
+	})
+}

_demo/cexec/exec.go

@@ -0,0 +1,11 @@
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/os"
+)
+
+func main() {
+	ls := c.Str("ls")
+	os.Execlp(ls, ls, c.Str("-l"), nil)
+}

_demo/cgobasic/cgobasic.go

@@ -0,0 +1,55 @@
+package main
+
+/*
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+*/
+import "C"
+import (
+	"fmt"
+	"unsafe"
+)
+
+func main() {
+	// C.CString example
+	cstr := C.CString("Hello, World!")
+	C.puts(cstr)
+
+	// C.CBytes example
+	bytes := []byte{65, 66, 67, 68} // ABCD
+	cbytes := C.CBytes(bytes)
+
+	// C.GoString example
+	gostr := C.GoString(cstr)
+	println("Converted back to Go string: ", gostr)
+
+	// C.GoStringN example (with length limit)
+	gostringN := C.GoStringN(cstr, 5) // only take first 5 characters
+	println("Length-limited string: ", gostringN)
+
+	// C.GoBytes example
+	gobytes := C.GoBytes(cbytes, 4) // 4 is the length
+	println("Converted back to Go byte slice: ", gobytes)
+
+	// C math library examples
+	x := 2.0
+	// Calculate square root
+	sqrtResult := C.sqrt(C.double(x))
+	fmt.Printf("sqrt(%v) = %v\n", x, float64(sqrtResult))
+
+	// Calculate sine
+	sinResult := C.sin(C.double(x))
+	fmt.Printf("sin(%v) = %v\n", x, float64(sinResult))
+
+	// Calculate cosine
+	cosResult := C.cos(C.double(x))
+	fmt.Printf("cos(%v) = %v\n", x, float64(cosResult))
+
+	// Calculate natural logarithm
+	logResult := C.log(C.double(x))
+	fmt.Printf("log(%v) = %v\n", x, float64(logResult))
+
+	C.free(unsafe.Pointer(cstr))
+	C.free(cbytes)
+}

_demo/cgocfiles/cgocfiles.go

@@ -0,0 +1,15 @@
+package main
+
+/*
+#include "in.h"
+*/
+import "C"
+import "fmt"
+
+func main() {
+	r := C.test_structs(&C.s4{a: 1}, &C.s8{a: 1, b: 2}, &C.s12{a: 1, b: 2, c: 3}, &C.s16{a: 1, b: 2, c: 3, d: 4}, &C.s20{a: 1, b: 2, c: 3, d: 4, e: 5})
+	fmt.Println(r)
+	if r != 35 {
+		panic("test_structs failed")
+	}
+}

_demo/cgocfiles/in.c

@@ -0,0 +1,12 @@
+#include <stdio.h>
+#include "in.h"
+
+int test_structs(s4* s4, s8* s8, s12* s12, s16* s16, s20* s20) {
+  printf("s4.a: %d\n", s4->a);
+  printf("s8.a: %d, s8.b: %d\n", s8->a, s8->b);
+  printf("s12.a: %d, s12.b: %d, s12.c: %d\n", s12->a, s12->b, s12->c);
+  printf("s16.a: %d, s16.b: %d, s16.c: %d, s16.d: %d\n", s16->a, s16->b, s16->c, s16->d);
+  printf("s20.a: %d, s20.b: %d, s20.c: %d, s20.d: %d, s20.e: %d\n", s20->a, s20->b, s20->c, s20->d, s20->e);
+
+  return s4->a + s8->a + s8->b + s12->a + s12->b + s12->c + s16->a + s16->b + s16->c + s16->d + s20->a + s20->b + s20->c + s20->d + s20->e;
+}

_demo/cgocfiles/in.h

@@ -0,0 +1,33 @@
+#pragma once
+
+typedef struct {
+	int a;
+} s4;
+
+typedef struct {
+  int a;
+  int b;
+} s8;
+
+typedef struct {
+  int a;
+  int b;
+  int c;
+} s12;
+
+typedef struct {
+  int a;
+  int b;
+  int c;
+  int d;
+} s16;
+
+typedef struct {
+  int a;
+  int b;
+  int c;
+  int d;
+  int e;
+} s20;
+
+extern int test_structs(s4* s4, s8* s8, s12* s12, s16* s16, s20* s20);

_demo/cgodefer/cgodefer.go

@@ -0,0 +1,11 @@
+package main
+
+/*
+#include <stdlib.h>
+*/
+import "C"
+
+func main() {
+	p := C.malloc(1024)
+	defer C.free(p)
+}

_demo/cgofull/bar.go

@@ -0,0 +1,16 @@
+package main
+
+/*
+#cgo CFLAGS: -DBAR
+#include <stdio.h>
+#include "foo.h"
+static void foo(Foo* f) {
+	printf("foo in bar: %d\n", f->a);
+}
+*/
+import "C"
+
+func Bar(f *C.Foo) {
+	C.print_foo(f)
+	C.foo(f)
+}

_demo/cgofull/cgofull.go

@@ -0,0 +1,95 @@
+package main
+
+/*
+#cgo windows,!amd64 CFLAGS: -D_WIN32
+#cgo !windows CFLAGS: -D_POSIX
+#cgo windows,amd64 CFLAGS: -D_WIN64
+#cgo linux,amd64 CFLAGS: -D_LINUX64
+#cgo !windows,amd64 CFLAGS: -D_UNIX64
+#include <stdio.h>
+#include "foo.h"
+typedef struct {
+	int a;
+} s4;
+
+typedef struct {
+  int a;
+  int b;
+} s8;
+
+typedef struct {
+  int a;
+  int b;
+  int c;
+} s12;
+
+typedef struct {
+  int a;
+  int b;
+  int c;
+  int d;
+} s16;
+
+typedef struct {
+  int a;
+  int b;
+  int c;
+  int d;
+  int e;
+} s20;
+
+static int test_structs(s4* s4, s8* s8, s12* s12, s16* s16, s20* s20) {
+  printf("s4.a: %d\n", s4->a);
+  printf("s8.a: %d, s8.b: %d\n", s8->a, s8->b);
+  printf("s12.a: %d, s12.b: %d, s12.c: %d\n", s12->a, s12->b, s12->c);
+  printf("s16.a: %d, s16.b: %d, s16.c: %d, s16.d: %d\n", s16->a, s16->b, s16->c, s16->d);
+  printf("s20.a: %d, s20.b: %d, s20.c: %d, s20.d: %d, s20.e: %d\n", s20->a, s20->b, s20->c, s20->d, s20->e);
+
+  return s4->a + s8->a + s8->b + s12->a + s12->b + s12->c + s16->a + s16->b + s16->c + s16->d + s20->a + s20->b + s20->c + s20->d + s20->e;
+}
+
+static void test_macros() {
+#ifdef FOO
+	printf("FOO is defined\n");
+#endif
+#ifdef BAR
+	printf("BAR is defined\n");
+#endif
+#ifdef _WIN32
+	printf("WIN32 is defined\n");
+#endif
+#ifdef _POSIX
+	printf("POSIX is defined\n");
+#endif
+#ifdef _WIN64
+	printf("WIN64 is defined\n");
+#endif
+#ifdef _LINUX64
+	printf("LINUX64 is defined\n");
+#endif
+#ifdef _UNIX64
+	printf("UNIX64 is defined\n");
+#endif
+}
+*/
+import "C"
+import "fmt"
+
+func main() {
+	runPy()
+	f := &C.Foo{a: 1}
+	Foo(f)
+	Bar(f)
+	C.test_macros()
+	r := C.test_structs(&C.s4{a: 1}, &C.s8{a: 1, b: 2}, &C.s12{a: 1, b: 2, c: 3}, &C.s16{a: 1, b: 2, c: 3, d: 4}, &C.s20{a: 1, b: 2, c: 3, d: 4, e: 5})
+	fmt.Println(r)
+	if r != 35 {
+		panic("test_structs failed")
+	}
+}
+
+func runPy() {
+	Initialize()
+	defer Finalize()
+	Run("print('Hello, Python!')")
+}

_demo/cgofull/foo.c

@@ -0,0 +1,6 @@
+#include <stdio.h>
+#include "foo.h"
+
+void print_foo(Foo* f) {
+	printf("print_foo: %d\n", f->a);
+}

_demo/cgofull/foo.go

@@ -0,0 +1,16 @@
+package main
+
+/*
+#cgo CFLAGS: -DFOO
+#include <stdio.h>
+#include "foo.h"
+static void foo(Foo* f) {
+	printf("foo in bar: %d\n", f->a);
+}
+*/
+import "C"
+
+func Foo(f *C.Foo) {
+	C.print_foo(f)
+	C.foo(f)
+}

_demo/cgofull/foo.h

@@ -0,0 +1,7 @@
+#pragma once
+
+typedef struct {
+	int a;
+} Foo;
+
+extern void print_foo(Foo* f);

_demo/cgofull/py.go

@@ -0,0 +1,24 @@
+package main
+
+/*
+#cgo pkg-config: python3-embed
+#include <Python.h>
+*/
+import "C"
+import "fmt"
+
+func Initialize() {
+	C.Py_Initialize()
+}
+
+func Finalize() {
+	C.Py_Finalize()
+}
+
+func Run(code string) error {
+	if C.PyRun_SimpleString(C.CString(code)) != 0 {
+		C.PyErr_Print()
+		return fmt.Errorf("failed to run code")
+	}
+	return nil
+}

_demo/cgopython/cgopython.go

@@ -0,0 +1,13 @@
+package main
+
+/*
+#cgo pkg-config: python3-embed
+#include <Python.h>
+*/
+import "C"
+
+func main() {
+	C.Py_Initialize()
+	defer C.Py_Finalize()
+	C.PyRun_SimpleString(C.CString("print('Hello, Python!')"))
+}

_demo/checkfile/demo.go

@@ -0,0 +1,28 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+)
+
+func main() {
+	tempDir := os.TempDir()
+	noexist := filepath.Join(tempDir, "noexist.txt")
+
+	if _, err := os.Stat(noexist); err != nil {
+		if os.IsNotExist(err) {
+			fmt.Println("noexist:", err.Error())
+		} else {
+			fmt.Println("exist,other err:", err.Error())
+		}
+	}
+
+	if _, err := os.Open(noexist); err != nil {
+		if os.IsNotExist(err) {
+			fmt.Println("noexist:", err.Error())
+		} else {
+			fmt.Println("exist,other err:", err.Error())
+		}
+	}
+}

_demo/crand/rand.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/math/rand"
+	"github.com/goplus/llgo/c/time"
+)
+
+func fastrand64() uint64 {
+	v1 := uint64(rand.Random())
+	v2 := uint64(rand.Random())
+	return v1 ^ (v2 << 32)
+}
+
+func main() {
+	rand.Srand(c.Uint(time.Time(nil)))
+	fmt.Printf("%x\n", rand.Rand())
+	fmt.Printf("%x\n", rand.Rand())
+
+	rand.Srandom(c.Uint(time.Time(nil)))
+	fmt.Printf("%x\n", rand.Random())
+	fmt.Printf("%x\n", rand.Random())
+	fmt.Printf("%x\n", fastrand64())
+}

_demo/fcntl/fcntl.go

@@ -0,0 +1,77 @@
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/os"
+	"unsafe"
+)
+
+func main() {
+
+	filename := c.Str("testfile.txt")
+	data := c.Str("Hello, os!")
+	var buffer [20]c.Char
+
+	// Open a file, O_CREAT|O_WRONLY|O_TRUNC means create, write only, or clear the file
+	fd := os.Open(filename, os.O_CREAT|os.O_WRONLY|os.O_TRUNC, 0644)
+	if fd == -1 {
+		c.Printf(c.Str("open error\n"))
+		return
+	}
+
+	// Writing data to a file
+	bytesWritten := os.Write(fd, c.Pointer(data), c.Strlen(data))
+	if bytesWritten == -1 {
+		c.Printf(c.Str("write error\n"))
+		os.Close(fd)
+		return
+	}
+	c.Printf(c.Str("Written %ld bytes to %s\n"), bytesWritten, filename)
+
+	// Get file status flags
+	flags := os.Fcntl(fd, os.F_GETFL)
+	if flags == -1 {
+		c.Printf(c.Str("os error\n"))
+		os.Close(fd)
+		return
+	}
+	c.Printf(c.Str("File flags: %d\n"), flags)
+
+	// Set the file status flag to non-blocking mode
+	if os.Fcntl(fd, os.F_SETFL, flags|os.O_NONBLOCK) == -1 {
+		c.Printf(c.Str("os error\n"))
+		os.Close(fd)
+		return
+	}
+	c.Printf(c.Str("set file status successfully\n"))
+
+
+
+	c.Printf(c.Str("111"))
+	// Close file
+	os.Close(fd)
+
+	// Reopen the file, O_RDONLY means read-only
+	fd = os.Open(filename, os.O_RDONLY)
+	if fd == -1 {
+		c.Printf(c.Str("open error\n"))
+		return
+	}
+
+	// Reading data from a file
+	// &buffer[:][0]
+	// unsafe.SliceData(buffer[:])
+	bytesRead := os.Read(fd, c.Pointer(unsafe.SliceData(buffer[:])), unsafe.Sizeof(buffer)-1)
+	if bytesRead == -1 {
+		c.Printf(c.Str("read error\n"))
+		os.Close(fd)
+		return
+	}
+
+	// Ensure that the buffer is null-terminated
+	buffer[bytesRead] = c.Char(0)
+	c.Printf(c.Str("Read %ld bytes: %s\n"), bytesRead, &buffer[0])
+
+	// Close file
+	os.Close(fd)
+}

_demo/hello/hello.go

@@ -9,5 +9,5 @@ func main() {
 }
 
 /* Expected output:
-Hello World
+Hello world
 */

_demo/linkname/linkname.go

@@ -0,0 +1,10 @@
+package main
+
+import _ "unsafe" // for go:linkname
+
+//go:linkname Sqrt C.sqrt
+func Sqrt(x float64) float64
+
+func main() {
+	println("sqrt(2) =", Sqrt(2))
+}

_demo/llama2-c/run.go

@@ -3,6 +3,7 @@ package main
 import (
 	"github.com/goplus/llgo/c"
 	"github.com/goplus/llgo/c/llama2"
+	"github.com/goplus/llgo/c/time"
 )
 
 func main() {
@@ -11,7 +12,7 @@ func main() {
 	var tokenizerPath *c.Char = c.Str("tokenizer.bin")
 	var temperature, topp c.Float = 1.0, 0.9
 	var steps c.Int = 256
-	var rngSeed uint64 = uint64(c.Time(nil))
+	var rngSeed uint64 = uint64(time.Time(nil))
 
 loop: // parse command line arguments
 	for {

_demo/logdemo/log.go

@@ -0,0 +1,9 @@
+package main
+
+import (
+	"log"
+)
+
+func main() {
+	log.Println("Hello")
+}

_demo/mimeheader/mimeheader.go

@@ -0,0 +1,13 @@
+package main
+
+import "net/textproto"
+
+func main() {
+	h := make(textproto.MIMEHeader)
+	h.Set("host", "www.example.com")
+	println(h.Get("Host"))
+}
+
+/* Expected output:
+www.example.com
+*/

_demo/mkdirdemo/mkdir.go

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+)
+
+func main() {
+	tempDir, err := os.MkdirTemp("", "example*")
+	if err != nil {
+		fmt.Println("Failed to create temp directory:", err)
+		return
+	}
+	defer os.Remove(tempDir)
+	fmt.Println("Temp directory:", tempDir)
+
+	tempFile, err := os.CreateTemp("", "example*.txt")
+	if err != nil {
+		fmt.Println("Failed to create temp file:", err)
+		return
+	}
+	defer tempFile.Close()
+	defer os.Remove(tempFile.Name())
+	fmt.Println("Temp file:", tempFile.Name())
+
+	nestedDir := filepath.Join("nested", "directory")
+	err = os.MkdirAll(nestedDir, 0755)
+	if err != nil {
+		fmt.Println("Failed to create nested directory:", err)
+		return
+	}
+	fmt.Println("Nest directory:", nestedDir)
+}

_demo/netdbdemo/netdb.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/net"
+)
+
+func main() {
+	var hints net.AddrInfo
+	hints.Family = net.AF_UNSPEC
+	hints.SockType = net.SOCK_STREAM
+
+	host := "httpbin.org"
+	port := "80"
+
+	var result *net.AddrInfo
+	c.Printf(c.Str("%d\n"), net.Getaddrinfo(c.Str(host), c.Str(port), &hints, &result))
+
+	c.Printf(c.Str("%d\n"), net.Freeaddrinfo(result))
+}

_demo/oslookpath/lookpath.go

@@ -0,0 +1,19 @@
+package main
+
+import (
+	"fmt"
+	"os/exec"
+	"runtime"
+)
+
+func main() {
+	ls := "ls"
+	if runtime.GOOS == "windows" {
+		ls = "dir"
+	}
+	lspath, _ := exec.LookPath(ls)
+	if lspath != "" {
+		ls = lspath
+	}
+	fmt.Println(ls)
+}

_demo/rand/rand.go

@@ -1,15 +0,0 @@
-package main
-
-import (
-	"github.com/goplus/llgo/c"
-	"github.com/goplus/llgo/c/math/rand"
-)
-
-func main() {
-	var s c.Uint = 6
-	rand.Srand(s)
-	rr := rand.RandR(&s)
-	r := rand.Rand()
-	println("r:", r)
-	println("rr:", rr)
-}

_demo/randcrypt/rand.go

@@ -0,0 +1,18 @@
+package main
+
+import (
+	"crypto/rand"
+	"fmt"
+)
+
+func main() {
+	c := 10
+	b := make([]byte, c)
+	_, err := rand.Read(b)
+	if err != nil {
+		fmt.Println("error:", err)
+		return
+	}
+	// The slice should now contain random bytes instead of only zeroes.
+	fmt.Printf("%x\n", b)
+}

_demo/randdemo/rand.go

@@ -0,0 +1,12 @@
+package main
+
+import (
+	"fmt"
+	"math/rand"
+)
+
+func main() {
+	fmt.Println(rand.Intn(100))
+	fmt.Println(rand.Intn(100))
+	fmt.Println(rand.Intn(100))
+}

_demo/reflectfunc/reflectfunc.go

@@ -0,0 +1,41 @@
+package main
+
+import (
+	"fmt"
+	"reflect"
+)
+
+func add(a, b int) int {
+	return a + b
+}
+
+func main() {
+	fn := func(a, b int) int {
+		return a + b
+	}
+	var i int
+	fn1 := func() {
+		i++
+	}
+	fn2 := func() func() {
+		return func() {
+			println("closure", i)
+		}
+	}
+	fns := []any{add, fn, fn1, fn2}
+	for _, fn := range fns {
+		v := reflect.ValueOf(fn)
+		fmt.Println(v.Type())
+		fmt.Println(v.Kind())
+		if v.Kind() != reflect.Func {
+			panic(fmt.Sprintf("not func: %T", fn))
+		}
+
+		t := v.Type()
+		fmt.Println(t)
+		fmt.Println(t.Kind())
+		if t.Kind() != reflect.Func {
+			panic(fmt.Sprintf("not func: %T", fn))
+		}
+	}
+}

_demo/socket/client/client.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"unsafe"
+
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/net"
+	"github.com/goplus/llgo/c/os"
+)
+
+func main() {
+	sockfd := net.Socket(net.AF_INET, net.SOCK_STREAM, 0)
+	msg := c.Str("Hello, World!")
+	defer os.Close(sockfd)
+
+	server := net.GetHostByName(c.Str("localhost"))
+	if server == nil {
+		c.Perror(c.Str("hostname get error"))
+		return
+	}
+
+	servAddr := &net.SockaddrIn{}
+	servAddr.Family = net.AF_INET
+	servAddr.Port = net.Htons(uint16(1234))
+	c.Memcpy(unsafe.Pointer(&servAddr.Addr.Addr), unsafe.Pointer(*server.AddrList), uintptr(server.Length))
+
+	if res := net.Connect(sockfd, (*net.SockAddr)(unsafe.Pointer(servAddr)), c.Uint(16)); res < 0 {
+		c.Perror(c.Str("connect error"))
+		return
+	}
+	os.Write(sockfd, unsafe.Pointer(msg), c.Strlen(msg))
+}

_demo/socket/server/server.go

@@ -0,0 +1,43 @@
+package main
+
+import (
+	"unsafe"
+
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/net"
+	"github.com/goplus/llgo/c/os"
+)
+
+func main() {
+	var buffer [256]c.Char
+
+	sockfd := net.Socket(net.AF_INET, net.SOCK_STREAM, 0)
+	defer os.Close(sockfd)
+
+	servAddr := &net.SockaddrIn{
+		Family: net.AF_INET,
+		Port:   net.Htons(uint16(1234)),
+		Addr:   net.InAddr{Addr: 0x00000000},
+		Zero:   [8]c.Char{0, 0, 0, 0, 0, 0, 0, 0},
+	}
+	if res := net.Bind(sockfd, servAddr, c.Uint(unsafe.Sizeof(*servAddr))); res < 0 {
+		c.Perror(c.Str("bind error"))
+		return
+	}
+
+	if net.Listen(sockfd, 5) < 0 {
+		c.Printf(c.Str("listen error"))
+		return
+	}
+	c.Printf(c.Str("Listening on port 1234...\n"))
+
+	cliAddr, clilen := &net.SockaddrIn{}, c.Uint(unsafe.Sizeof(servAddr))
+
+	newsockfd := net.Accept(sockfd, cliAddr, &clilen)
+	defer os.Close(newsockfd)
+	c.Printf(c.Str("Connection accepted."))
+
+	os.Read(newsockfd, unsafe.Pointer(unsafe.SliceData(buffer[:])), 256)
+	c.Printf(c.Str("Received: %s"), &buffer[0])
+
+}

_demo/syncdebug/syncdebug.go

@@ -0,0 +1,31 @@
+package main
+
+import (
+	"io"
+	"os"
+	"sync"
+	"unsafe"
+
+	llsync "github.com/goplus/llgo/c/pthread/sync"
+)
+
+type L struct {
+	mu sync.Mutex
+	s  string
+	i  int
+	w  io.Writer
+}
+
+func main() {
+	l := &L{s: "hello", i: 123, w: os.Stdout}
+	println("sizeof(L):", unsafe.Sizeof(L{}))
+	println("sizeof(sync.Mutex):", unsafe.Sizeof(sync.Mutex{}))
+	println("sizeof(llsync.Mutex):", unsafe.Sizeof(llsync.Mutex{}))
+	println("l:", l, "l.s:", l.s, "l.i:", l.i, "l.w:", l.w)
+	l.mu.Lock()
+	println("locked")
+	println("l:", l, "l.s:", l.s, "l.i:", l.i, "l.w:", l.w)
+	l.w.Write([]byte(l.s))
+	l.w.Write([]byte("\n"))
+	l.mu.Unlock()
+}

_demo/sysexec/exec.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+	"fmt"
+	"os/exec"
+	"runtime"
+	"syscall"
+)
+
+func main() {
+	ls := "ls"
+	args := []string{ls, "-l"}
+	if runtime.GOOS == "windows" {
+		ls = "dir"
+		args = []string{ls}
+	}
+	lspath, _ := exec.LookPath(ls)
+	if lspath != "" {
+		ls = lspath
+	}
+	err := syscall.Exec(ls, args, nil)
+	if err != nil {
+		fmt.Println("syscall.Exec error:", err)
+		return
+	}
+}

_demo/timedur/timedur.go

@@ -0,0 +1,11 @@
+package main
+
+import (
+	"fmt"
+	"time"
+)
+
+func main() {
+	t := time.Now().Add(time.Second * 5)
+	fmt.Println(time.Until(t))
+}

_lldb/README.md

@@ -0,0 +1,115 @@
+## LLGo Plugin of LLDB
+
+### Build with debug info
+
+```shell
+LLGO_DEBUG=1 llgo build -o cl/_testdata/debug/out ./cl/_testdata/debug
+```
+
+### Debug with lldb
+
+```shell
+_lldb/runlldb.sh ./cl/_testdata/debug/out
+```
+
+or
+
+```shell
+/opt/homebrew/bin/lldb -O "command script import _lldb/llgo_plugin.py" ./cl/_testdata/debug/out
+# github.com/goplus/llgo/cl/_testdata/debug
+Breakpoint 1: no locations (pending).
+Breakpoint set in dummy target, will get copied into future targets.
+(lldb) command script import _lldb/llgo_plugin.py
+(lldb) target create "./cl/_testdata/debug/out"
+Current executable set to '/Users/lijie/source/goplus/llgo/cl/_testdata/debug/out' (arm64).
+(lldb) r
+Process 21992 launched: '/Users/lijie/source/goplus/llgo/cl/_testdata/debug/out' (arm64)
+globalInt: 301
+s: 0x100123e40
+0x100123be0
+5 8
+called function with struct
+1 2 3 4 5 6 7 8 9 10 +1.100000e+01 +1.200000e+01 true (+1.300000e+01+1.400000e+01i) (+1.500000e+01+1.600000e+01i) [3/3]0x1001129a0 [3/3]0x100112920 hello 0x1001149b0 0x100123ab0 0x100123d10 0x1001149e0 (0x100116810,0x1001149d0) 0x10011bf00 0x10010fa80 (0x100116840,0x100112940) 0x10001b4a4
+9
+1 (0x1001167e0,0x100112900)
+called function with types
+0x100123e40
+0x1000343d0
+Process 21992 stopped
+* thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1
+    frame #0: 0x000000010001b3b4 out`main at in.go:225:12
+   222 		//   s.i8: '\x01'
+   223 		//   s.i16: 2
+   224 		s.i8 = 0x12
+-> 225 		println(s.i8)
+   226 		// Expected:
+   227 		//   all variables: globalInt globalStruct globalStructPtr s i err
+   228 		//   s.i8: '\x12'
+(lldb) v
+var i int = <variable not available>
+var s github.com/goplus/llgo/cl/_testdata/debug.StructWithAllTypeFields = {
+  i8 = '\x12',
+  i16 = 2,
+  i32 = 3,
+  i64 = 4,
+  i = 5,
+  u8 = '\x06',
+  u16 = 7,
+  u32 = 8,
+  u64 = 9,
+  u = 10,
+  f32 = 11,
+  f64 = 12,
+  b = true,
+  c64 = {real = 13, imag = 14},
+  c128 = {real = 15, imag = 16},
+  slice = []int{21, 22, 23},
+  arr = [3]int{24, 25, 26},
+  arr2 = [3]github.com/goplus/llgo/cl/_testdata/debug.E{{i = 27}, {i = 28}, {i = 29}},
+  s = "hello",
+  e = {i = 30},
+  pf = 0x0000000100123d10,
+  pi = 0x00000001001149e0,
+  intr = {type = 0x0000000100116810, data = 0x00000001001149d0},
+  m = {count = 4296130304},
+  c = {},
+  err = {type = 0x0000000100116840, data = 0x0000000100112940},
+  fn = {f = 0x000000010001b4a4, data = 0x00000001001149c0},
+  pad1 = 100,
+  pad2 = 200
+}
+var globalStructPtr *github.com/goplus/llgo/cl/_testdata/debug.StructWithAllTypeFields = <variable not available>
+var globalStruct github.com/goplus/llgo/cl/_testdata/debug.StructWithAllTypeFields = {
+  i8 = '\x01',
+  i16 = 2,
+  i32 = 3,
+  i64 = 4,
+  i = 5,
+  u8 = '\x06',
+  u16 = 7,
+  u32 = 8,
+  u64 = 9,
+  u = 10,
+  f32 = 11,
+  f64 = 12,
+  b = true,
+  c64 = {real = 13, imag = 14},
+  c128 = {real = 15, imag = 16},
+  slice = []int{21, 22, 23},
+  arr = [3]int{24, 25, 26},
+  arr2 = [3]github.com/goplus/llgo/cl/_testdata/debug.E{{i = 27}, {i = 28}, {i = 29}},
+  s = "hello",
+  e = {i = 30},
+  pf = 0x0000000100123d10,
+  pi = 0x00000001001149e0,
+  intr = {type = 0x0000000100116810, data = 0x00000001001149d0},
+  m = {count = 4296130304},
+  c = {},
+  err = {type = 0x0000000100116840, data = 0x0000000100112940},
+  fn = {f = 0x000000010001b4a4, data = 0x00000001001149c0},
+  pad1 = 100,
+  pad2 = 200
+}
+var globalInt int = 301
+var err error = {type = 0x0000000100112900, data = 0x000000000000001a}
+```

_lldb/common.sh

@@ -0,0 +1,40 @@
+#!/bin/bash
+
+# Function to find LLDB 18+
+find_lldb() {
+    local lldb_paths=(
+        "/opt/homebrew/bin/lldb"
+        "/usr/local/bin/lldb"
+        "/usr/bin/lldb"
+        "lldb"  # This will use the system PATH
+    )
+
+    for lldb_path in "${lldb_paths[@]}"; do
+        if command -v "$lldb_path" >/dev/null 2>&1; then
+            local version
+            version=$("$lldb_path" --version | grep -oE '[0-9]+' | head -1)
+            if [ "$version" -ge 18 ]; then
+                echo "$lldb_path"
+                return 0
+            fi
+        fi
+    done
+
+    echo "Error: LLDB 18 or higher not found" >&2
+    exit 1
+}
+
+# Find LLDB 18+
+LLDB_PATH=$(find_lldb)
+echo "LLDB_PATH: $LLDB_PATH"
+$LLDB_PATH --version
+export LLDB_PATH
+
+# Default package path
+export DEFAULT_PACKAGE_PATH="./cl/_testdata/debug"
+
+# Function to build the project
+build_project() {
+    local package_path="$1"
+    LLGO_DEBUG=1 go run ./cmd/llgo build -o "${package_path}/debug.out" "${package_path}"
+}

_lldb/llgo_plugin.py

@@ -0,0 +1,297 @@
+# pylint: disable=missing-module-docstring,missing-class-docstring,missing-function-docstring
+
+from typing import List, Optional, Dict, Any, Tuple
+import re
+import lldb
+
+
+def log(*args: Any, **kwargs: Any) -> None:
+    print(*args, **kwargs, flush=True)
+
+
+def __lldb_init_module(debugger: lldb.SBDebugger, _: Dict[str, Any]) -> None:
+    debugger.HandleCommand(
+        'command script add -f llgo_plugin.print_go_expression p')
+    debugger.HandleCommand(
+        'command script add -f llgo_plugin.print_all_variables v')
+
+
+def is_llgo_compiler(_target: lldb.SBTarget) -> bool:
+    return True
+
+
+def get_indexed_value(value: lldb.SBValue, index: int) -> Optional[lldb.SBValue]:
+    if not value or not value.IsValid():
+        return None
+
+    type_name = value.GetType().GetName()
+
+    if type_name.startswith('[]'):  # Slice
+        data_ptr = value.GetChildMemberWithName('data')
+        element_type = data_ptr.GetType().GetPointeeType()
+        element_size = element_type.GetByteSize()
+        ptr_value = int(data_ptr.GetValue(), 16)
+        element_address = ptr_value + index * element_size
+        target = value.GetTarget()
+        return target.CreateValueFromAddress(
+            f"element_{index}", lldb.SBAddress(element_address, target), element_type)
+    elif value.GetType().IsArrayType():  # Array
+        return value.GetChildAtIndex(index)
+    else:
+        return None
+
+
+def evaluate_expression(frame: lldb.SBFrame, expression: str) -> Optional[lldb.SBValue]:
+    parts = re.findall(r'\*|\w+|\(|\)|\[.*?\]|\.', expression)
+
+    def evaluate_part(i: int) -> Tuple[Optional[lldb.SBValue], int]:
+        nonlocal parts
+        value: Optional[lldb.SBValue] = None
+        while i < len(parts):
+            part = parts[i]
+
+            if part == '*':
+                sub_value, i = evaluate_part(i + 1)
+                if sub_value and sub_value.IsValid():
+                    value = sub_value.Dereference()
+                else:
+                    return None, i
+            elif part == '(':
+                depth = 1
+                j = i + 1
+                while j < len(parts) and depth > 0:
+                    if parts[j] == '(':
+                        depth += 1
+                    elif parts[j] == ')':
+                        depth -= 1
+                    j += 1
+                value, i = evaluate_part(i + 1)
+                i = j - 1
+            elif part == ')':
+                return value, i + 1
+            elif part == '.':
+                if value is None:
+                    value = frame.FindVariable(parts[i+1])
+                else:
+                    value = value.GetChildMemberWithName(parts[i+1])
+                i += 2
+            elif part.startswith('['):
+                index = int(part[1:-1])
+                value = get_indexed_value(value, index)
+                i += 1
+            else:
+                if value is None:
+                    value = frame.FindVariable(part)
+                else:
+                    value = value.GetChildMemberWithName(part)
+                i += 1
+
+            if not value or not value.IsValid():
+                return None, i
+
+        return value, i
+
+    value, _ = evaluate_part(0)
+    return value
+
+
+def print_go_expression(debugger: lldb.SBDebugger, command: str, result: lldb.SBCommandReturnObject, _internal_dict: Dict[str, Any]) -> None:
+    frame = debugger.GetSelectedTarget().GetProcess(
+    ).GetSelectedThread().GetSelectedFrame()
+    value = evaluate_expression(frame, command)
+    if value and value.IsValid():
+        result.AppendMessage(format_value(value, debugger))
+    else:
+        result.AppendMessage(
+            f"Error: Unable to evaluate expression '{command}'")
+
+
+def print_all_variables(debugger: lldb.SBDebugger, _command: str, result: lldb.SBCommandReturnObject, _internal_dict: Dict[str, Any]) -> None:
+    target = debugger.GetSelectedTarget()
+    if not is_llgo_compiler(target):
+        result.AppendMessage("Not a LLGo compiled binary.")
+        return
+
+    frame = debugger.GetSelectedTarget().GetProcess(
+    ).GetSelectedThread().GetSelectedFrame()
+    variables = frame.GetVariables(True, True, True, True)
+
+    output: List[str] = []
+    for var in variables:
+        type_name = map_type_name(var.GetType().GetName())
+        formatted = format_value(var, debugger, include_type=False, indent=0)
+        output.append(f"var {var.GetName()} {type_name} = {formatted}")
+
+    result.AppendMessage("\n".join(output))
+
+
+def is_pointer(frame: lldb.SBFrame, var_name: str) -> bool:
+    var = frame.FindVariable(var_name)
+    return var.IsValid() and var.GetType().IsPointerType()
+
+
+def format_value(var: lldb.SBValue, debugger: lldb.SBDebugger, include_type: bool = True, indent: int = 0) -> str:
+    if not var.IsValid():
+        return "<variable not available>"
+
+    var_type = var.GetType()
+    type_class = var_type.GetTypeClass()
+    type_name = map_type_name(var_type.GetName())
+
+    # Handle typedef types
+    original_type_name = type_name
+    while var_type.IsTypedefType():
+        var_type = var_type.GetTypedefedType()
+        type_name = map_type_name(var_type.GetName())
+        type_class = var_type.GetTypeClass()
+
+    if var_type.IsPointerType():
+        return format_pointer(var, debugger, indent, original_type_name)
+
+    if type_name.startswith('[]'):  # Slice
+        return format_slice(var, debugger, indent)
+    elif var_type.IsArrayType():
+        return format_array(var, debugger, indent)
+    elif type_name == 'string':  # String
+        return format_string(var)
+    elif type_class in [lldb.eTypeClassStruct, lldb.eTypeClassClass]:
+        return format_struct(var, debugger, include_type, indent, original_type_name)
+    else:
+        value = var.GetValue()
+        summary = var.GetSummary()
+        if value is not None:
+            return f"{value}" if include_type else str(value)
+        elif summary is not None:
+            return f"{summary}" if include_type else summary
+        else:
+            return "<variable not available>"
+
+
+def format_slice(var: lldb.SBValue, debugger: lldb.SBDebugger, indent: int) -> str:
+    length = var.GetChildMemberWithName('len').GetValue()
+    if length is None:
+        return "<variable not available>"
+    length = int(length)
+    data_ptr = var.GetChildMemberWithName('data')
+    elements: List[str] = []
+
+    ptr_value = int(data_ptr.GetValue(), 16)
+    element_type = data_ptr.GetType().GetPointeeType()
+    element_size = element_type.GetByteSize()
+
+    target = debugger.GetSelectedTarget()
+    indent_str = '  ' * indent
+    next_indent_str = '  ' * (indent + 1)
+
+    for i in range(length):
+        element_address = ptr_value + i * element_size
+        element = target.CreateValueFromAddress(
+            f"element_{i}", lldb.SBAddress(element_address, target), element_type)
+        value = format_value(
+            element, debugger, include_type=False, indent=indent+1)
+        elements.append(value)
+
+    type_name = var.GetType().GetName()
+
+    if len(elements) > 5:  # 如果元素数量大于5，则进行折行显示
+        result = f"{type_name}{{\n{next_indent_str}" + \
+            f",\n{next_indent_str}".join(elements) + f"\n{indent_str}}}"
+    else:
+        result = f"{type_name}{{{', '.join(elements)}}}"
+
+    return result
+
+
+def format_array(var: lldb.SBValue, debugger: lldb.SBDebugger, indent: int) -> str:
+    elements: List[str] = []
+    indent_str = '  ' * indent
+    next_indent_str = '  ' * (indent + 1)
+
+    for i in range(var.GetNumChildren()):
+        value = format_value(var.GetChildAtIndex(
+            i), debugger, include_type=False, indent=indent+1)
+        elements.append(value)
+
+    array_size = var.GetNumChildren()
+    element_type = map_type_name(var.GetType().GetArrayElementType().GetName())
+    type_name = f"[{array_size}]{element_type}"
+
+    if len(elements) > 5:  # wrap line if too many elements
+        return f"{type_name}{{\n{next_indent_str}" + f",\n{next_indent_str}".join(elements) + f"\n{indent_str}}}"
+    else:
+        return f"{type_name}{{{', '.join(elements)}}}"
+
+
+def format_string(var: lldb.SBValue) -> str:
+    summary = var.GetSummary()
+    if summary is not None:
+        return summary  # Keep the quotes
+    else:
+        data = var.GetChildMemberWithName('data').GetValue()
+        length = var.GetChildMemberWithName('len').GetValue()
+        if data and length:
+            length = int(length)
+            error = lldb.SBError()
+            return '"%s"' % var.process.ReadCStringFromMemory(int(data, 16), length + 1, error)
+    return "<variable not available>"
+
+
+def format_struct(var: lldb.SBValue, debugger: lldb.SBDebugger, include_type: bool = True, indent: int = 0, type_name: str = "") -> str:
+    children: List[str] = []
+    indent_str = '  ' * indent
+    next_indent_str = '  ' * (indent + 1)
+
+    for i in range(var.GetNumChildren()):
+        child = var.GetChildAtIndex(i)
+        child_name = child.GetName()
+        child_value = format_value(
+            child, debugger, include_type=False, indent=indent+1)
+        children.append(f"{child_name} = {child_value}")
+
+    if len(children) > 5:  # 如果字段数量大于5，则进行折行显示
+        struct_content = "{\n" + ",\n".join(
+            [f"{next_indent_str}{child}" for child in children]) + f"\n{indent_str}}}"
+    else:
+        struct_content = f"{{{', '.join(children)}}}"
+
+    if include_type:
+        return f"{type_name}{struct_content}"
+    else:
+        return struct_content
+
+
+def format_pointer(var: lldb.SBValue, _debugger: lldb.SBDebugger, _indent: int, _type_name: str) -> str:
+    if not var.IsValid() or var.GetValueAsUnsigned() == 0:
+        return "<variable not available>"
+    return var.GetValue()  # Return the address as a string
+
+
+def map_type_name(type_name: str) -> str:
+    # Handle pointer types
+    if type_name.endswith('*'):
+        base_type = type_name[:-1].strip()
+        mapped_base_type = map_type_name(base_type)
+        return f"*{mapped_base_type}"
+
+    # Map other types
+    type_mapping: Dict[str, str] = {
+        'long': 'int',
+        'void': 'unsafe.Pointer',
+        'char': 'byte',
+        'short': 'int16',
+        'int': 'int32',
+        'long long': 'int64',
+        'unsigned char': 'uint8',
+        'unsigned short': 'uint16',
+        'unsigned int': 'uint32',
+        'unsigned long': 'uint',
+        'unsigned long long': 'uint64',
+        'float': 'float32',
+        'double': 'float64',
+    }
+
+    for c_type, go_type in type_mapping.items():
+        if type_name.startswith(c_type):
+            return type_name.replace(c_type, go_type, 1)
+
+    return type_name

_lldb/runlldb.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+set -e
+
+# Source common functions and variables
+# shellcheck source=./_lldb/common.sh
+source "$(dirname "$0")/common.sh"
+
+executable="$1"
+
+# Get the directory of the current script
+script_dir="$(dirname "$0")"
+
+# Run LLDB with the LLGO plugin
+"$LLDB_PATH" -O "command script import ${script_dir}/llgo_plugin.py" "$executable"

_lldb/runtest.sh

@@ -0,0 +1,69 @@
+#!/bin/bash
+
+set -e
+
+# Source common functions and variables
+# shellcheck source=./_lldb/common.sh
+# shellcheck disable=SC1091
+source "$(dirname "$0")/common.sh" || exit 1
+
+# Parse command-line arguments
+package_path="$DEFAULT_PACKAGE_PATH"
+verbose=False
+interactive=False
+plugin_path=None
+
+while [[ $# -gt 0 ]]; do
+    case $1 in
+        -v|--verbose)
+            verbose=True
+            shift
+            ;;
+        -i|--interactive)
+            interactive=True
+            shift
+            ;;
+        -p|--plugin)
+            plugin_path="\"$2\""
+            shift 2
+            ;;
+        *)
+            package_path="$1"
+            shift
+            ;;
+    esac
+done
+
+# Build the project
+build_project "$package_path" || exit 1
+
+# Set up the result file path
+result_file="/tmp/lldb_exit_code"
+
+# Prepare LLDB commands
+lldb_commands=(
+    "command script import _lldb/llgo_plugin.py"
+    "command script import _lldb/test.py"
+    "script test.run_tests_with_result('${package_path}/debug.out', ['${package_path}/in.go'], $verbose, $interactive, $plugin_path, '$result_file')"
+    "quit"
+)
+
+# Run LLDB with prepared commands 
+lldb_command_string=""
+for cmd in "${lldb_commands[@]}"; do
+    lldb_command_string+=" -o \"$cmd\""
+done
+
+
+# Run LLDB with the test script
+eval "$LLDB_PATH $lldb_command_string"
+
+# Read the exit code from the result file
+if [ -f "$result_file" ]; then
+    exit_code=$(cat "$result_file")
+    rm "$result_file"
+    exit "$exit_code"
+else
+    echo "Error: Could not find exit code file"
+    exit 1
+fi

_lldb/test.py

@@ -0,0 +1,402 @@
+# pylint: disable=missing-module-docstring,missing-class-docstring,missing-function-docstring
+
+import os
+import sys
+import argparse
+import signal
+from dataclasses import dataclass, field
+from typing import List, Optional, Set, Dict, Any
+import lldb
+import llgo_plugin
+from llgo_plugin import log
+
+
+class LLDBTestException(Exception):
+    pass
+
+
+@dataclass
+class Test:
+    source_file: str
+    line_number: int
+    variable: str
+    expected_value: str
+
+
+@dataclass
+class TestResult:
+    test: Test
+    status: str
+    actual: Optional[str] = None
+    message: Optional[str] = None
+    missing: Optional[Set[str]] = None
+    extra: Optional[Set[str]] = None
+
+
+@dataclass
+class TestCase:
+    source_file: str
+    start_line: int
+    end_line: int
+    tests: List[Test]
+
+
+@dataclass
+class CaseResult:
+    test_case: TestCase
+    function: str
+    results: List[TestResult]
+
+
+@dataclass
+class TestResults:
+    total: int = 0
+    passed: int = 0
+    failed: int = 0
+    case_results: List[CaseResult] = field(default_factory=list)
+
+
+class LLDBDebugger:
+    def __init__(self, executable_path: str, plugin_path: Optional[str] = None) -> None:
+        self.executable_path: str = executable_path
+        self.plugin_path: Optional[str] = plugin_path
+        self.debugger: lldb.SBDebugger = lldb.SBDebugger.Create()
+        self.debugger.SetAsync(False)
+        self.target: Optional[lldb.SBTarget] = None
+        self.process: Optional[lldb.SBProcess] = None
+        self.type_mapping: Dict[str, str] = {
+            'long': 'int',
+            'unsigned long': 'uint',
+        }
+
+    def setup(self) -> None:
+        if self.plugin_path:
+            self.debugger.HandleCommand(
+                f'command script import "{self.plugin_path}"')
+        self.target = self.debugger.CreateTarget(self.executable_path)
+        if not self.target:
+            raise LLDBTestException(
+                f"Failed to create target for {self.executable_path}")
+
+        self.debugger.HandleCommand(
+            'command script add -f llgo_plugin.print_go_expression p')
+        self.debugger.HandleCommand(
+            'command script add -f llgo_plugin.print_all_variables v')
+
+    def set_breakpoint(self, file_spec: str, line_number: int) -> lldb.SBBreakpoint:
+        bp = self.target.BreakpointCreateByLocation(file_spec, line_number)
+        if not bp.IsValid():
+            raise LLDBTestException(
+                f"Failed to set breakpoint at {file_spec}: {line_number}")
+        return bp
+
+    def run_to_breakpoint(self) -> None:
+        if not self.process:
+            self.process = self.target.LaunchSimple(None, None, os.getcwd())
+        else:
+            self.process.Continue()
+        if self.process.GetState() != lldb.eStateStopped:
+            raise LLDBTestException("Process didn't stop at breakpoint")
+
+    def get_variable_value(self, var_expression: str) -> Optional[str]:
+        frame = self.process.GetSelectedThread().GetFrameAtIndex(0)
+        value = llgo_plugin.evaluate_expression(frame, var_expression)
+        if value and value.IsValid():
+            return llgo_plugin.format_value(value, self.debugger)
+        return None
+
+    def get_all_variable_names(self) -> Set[str]:
+        frame = self.process.GetSelectedThread().GetFrameAtIndex(0)
+        return set(var.GetName() for var in frame.GetVariables(True, True, True, True))
+
+    def get_current_function_name(self) -> str:
+        frame = self.process.GetSelectedThread().GetFrameAtIndex(0)
+        return frame.GetFunctionName()
+
+    def cleanup(self) -> None:
+        if self.process and self.process.IsValid():
+            self.process.Kill()
+        lldb.SBDebugger.Destroy(self.debugger)
+
+    def run_console(self) -> bool:
+        log("\nEntering LLDB interactive mode.")
+        log("Type 'quit' to exit and continue with the next test case.")
+        log("Use Ctrl+D to exit and continue, or Ctrl+C to abort all tests.")
+
+        old_stdin, old_stdout, old_stderr = sys.stdin, sys.stdout, sys.stderr
+        sys.stdin, sys.stdout, sys.stderr = sys.__stdin__, sys.__stdout__, sys.__stderr__
+
+        self.debugger.SetAsync(True)
+        self.debugger.HandleCommand("settings set auto-confirm true")
+        self.debugger.HandleCommand("command script import lldb")
+
+        interpreter = self.debugger.GetCommandInterpreter()
+        continue_tests = True
+
+        def keyboard_interrupt_handler(_sig: Any, _frame: Any) -> None:
+            nonlocal continue_tests
+            log("\nTest execution aborted by user.")
+            continue_tests = False
+            raise KeyboardInterrupt
+
+        original_handler = signal.signal(
+            signal.SIGINT, keyboard_interrupt_handler)
+
+        try:
+            while continue_tests:
+                log("\n(lldb) ", end="")
+                try:
+                    command = input().strip()
+                except EOFError:
+                    log("\nExiting LLDB interactive mode. Continuing with next test case.")
+                    break
+                except KeyboardInterrupt:
+                    break
+
+                if command.lower() == 'quit':
+                    log("\nExiting LLDB interactive mode. Continuing with next test case.")
+                    break
+
+                result = lldb.SBCommandReturnObject()
+                interpreter.HandleCommand(command, result)
+                log(result.GetOutput().rstrip() if result.Succeeded()
+                    else result.GetError().rstrip())
+
+        finally:
+            signal.signal(signal.SIGINT, original_handler)
+            sys.stdin, sys.stdout, sys.stderr = old_stdin, old_stdout, old_stderr
+
+        return continue_tests
+
+
+def parse_expected_values(source_files: List[str]) -> List[TestCase]:
+    test_cases: List[TestCase] = []
+    for source_file in source_files:
+        with open(source_file, 'r', encoding='utf-8') as f:
+            content = f.readlines()
+            i = 0
+            while i < len(content):
+                line = content[i].strip()
+                if line.startswith('// Expected:'):
+                    start_line = i + 1
+                    tests: List[Test] = []
+                    i += 1
+                    while i < len(content):
+                        line = content[i].strip()
+                        if not line.startswith('//'):
+                            break
+                        parts = line.lstrip('//').strip().split(':', 1)
+                        if len(parts) == 2:
+                            var, value = map(str.strip, parts)
+                            tests.append(Test(source_file, i + 1, var, value))
+                        i += 1
+                    end_line = i
+                    test_cases.append(
+                        TestCase(source_file, start_line, end_line, tests))
+                else:
+                    i += 1
+    return test_cases
+
+
+def execute_tests(executable_path: str, test_cases: List[TestCase], verbose: bool, interactive: bool, plugin_path: Optional[str]) -> TestResults:
+    results = TestResults()
+
+    for test_case in test_cases:
+        debugger = LLDBDebugger(executable_path, plugin_path)
+        try:
+            if verbose:
+                log(
+                    f"\nSetting breakpoint at {test_case.source_file}:{test_case.end_line}")
+            debugger.setup()
+            debugger.set_breakpoint(test_case.source_file, test_case.end_line)
+            debugger.run_to_breakpoint()
+
+            all_variable_names = debugger.get_all_variable_names()
+
+            case_result = execute_test_case(
+                debugger, test_case, all_variable_names)
+
+            results.total += len(case_result.results)
+            results.passed += sum(1 for r in case_result.results if r.status == 'pass')
+            results.failed += sum(1 for r in case_result.results if r.status != 'pass')
+            results.case_results.append(case_result)
+
+            case = case_result.test_case
+            loc = f"{case.source_file}:{case.start_line}-{case.end_line}"
+            if verbose or interactive or any(r.status != 'pass' for r in case_result.results):
+                log(f"\nTest case: {loc} in function '{case_result.function}'")
+            for result in case_result.results:
+                print_test_result(result, verbose=verbose)
+
+            if interactive and any(r.status != 'pass' for r in case_result.results):
+                log("\nTest case failed. Entering LLDB interactive mode.")
+                continue_tests = debugger.run_console()
+                if not continue_tests:
+                    log("Aborting all tests.")
+                    break
+
+        finally:
+            debugger.cleanup()
+
+    return results
+
+
+def run_tests(executable_path: str, source_files: List[str], verbose: bool, interactive: bool, plugin_path: Optional[str]) -> int:
+    test_cases = parse_expected_values(source_files)
+    if verbose:
+        log(f"Running tests for {', '.join(source_files)} with {executable_path}")
+        log(f"Found {len(test_cases)} test cases")
+
+    results = execute_tests(executable_path, test_cases,
+                            verbose, interactive, plugin_path)
+    print_test_results(results)
+
+    # Return 0 if all tests passed, 1 otherwise
+    return 0 if results.failed == 0 else 1
+
+
+def execute_test_case(debugger: LLDBDebugger, test_case: TestCase, all_variable_names: Set[str]) -> CaseResult:
+    results: List[TestResult] = []
+
+    for test in test_case.tests:
+        if test.variable == "all variables":
+            result = execute_all_variables_test(test, all_variable_names)
+        else:
+            result = execute_single_variable_test(debugger, test)
+        results.append(result)
+
+    return CaseResult(test_case, debugger.get_current_function_name(), results)
+
+
+def execute_all_variables_test(test: Test, all_variable_names: Set[str]) -> TestResult:
+    expected_vars = set(test.expected_value.split())
+    if expected_vars == all_variable_names:
+        return TestResult(
+            test=test,
+            status='pass',
+            actual=all_variable_names
+        )
+    else:
+        return TestResult(
+            test=test,
+            status='fail',
+            actual=all_variable_names,
+            missing=expected_vars - all_variable_names,
+            extra=all_variable_names - expected_vars
+        )
+
+
+def execute_single_variable_test(debugger: LLDBDebugger, test: Test) -> TestResult:
+    actual_value = debugger.get_variable_value(test.variable)
+    if actual_value is None:
+        return TestResult(
+            test=test,
+            status='error',
+            message=f'Unable to fetch value for {test.variable}'
+        )
+
+    actual_value = actual_value.strip()
+    expected_value = test.expected_value.strip()
+
+    if actual_value == expected_value:
+        return TestResult(
+            test=test,
+            status='pass',
+            actual=actual_value
+        )
+    else:
+        return TestResult(
+            test=test,
+            status='fail',
+            actual=actual_value
+        )
+
+
+def print_test_results(results: TestResults) -> None:
+    log("\nTest results:")
+    log(f"  Total tests: {results.total}")
+    log(f"  Passed tests: {results.passed}")
+    log(f"  Failed tests: {results.failed}")
+    if results.total == results.passed:
+        log("All tests passed!")
+    else:
+        log("Some tests failed")
+
+
+def print_test_result(result: TestResult, verbose: bool) -> None:
+    status_symbol = "✓" if result.status == 'pass' else "✗"
+    status_text = "Pass" if result.status == 'pass' else "Fail"
+    test = result.test
+
+    if result.status == 'pass':
+        if verbose:
+            log(f"{status_symbol} Line {test.line_number}, {test.variable}: {status_text}")
+            if test.variable == 'all variables':
+                log(f"    Variables: {', '.join(sorted(result.actual))}")
+    else:  # fail or error
+        log(f"{status_symbol} Line {test.line_number}, {test.variable}: {status_text}")
+        if test.variable == 'all variables':
+            if result.missing:
+                log(f"    Missing variables: {', '.join(sorted(result.missing))}")
+            if result.extra:
+                log(f"    Extra variables: {', '.join(sorted(result.extra))}")
+            log(f"    Expected: {', '.join(sorted(test.expected_value.split()))}")
+            log(f"    Actual: {', '.join(sorted(result.actual))}")
+        elif result.status == 'error':
+            log(f"    Error: {result.message}")
+        else:
+            log(f"    Expected: {test.expected_value}")
+            log(f"    Actual: {result.actual}")
+
+
+def run_tests_with_result(executable_path: str, source_files: List[str], verbose: bool, interactive: bool, plugin_path: Optional[str], result_path: str) -> int:
+    try:
+        exit_code = run_tests(executable_path, source_files,
+                              verbose, interactive, plugin_path)
+    except Exception as e:
+        log(f"An error occurred during test execution: {str(e)}")
+        exit_code = 2  # Use a different exit code for unexpected errors
+
+    try:
+        with open(result_path, 'w', encoding='utf-8') as f:
+            f.write(str(exit_code))
+    except IOError as e:
+        log(f"Error writing result to file {result_path}: {str(e)}")
+        # If we can't write to the file, we should still return the exit code
+
+    return exit_code
+
+
+def main() -> None:
+    log(sys.argv)
+    parser = argparse.ArgumentParser(
+        description="LLDB 18 Debug Script with DWARF 5 Support")
+    parser.add_argument("executable", help="Path to the executable")
+    parser.add_argument("sources", nargs='+', help="Paths to the source files")
+    parser.add_argument("-v", "--verbose", action="store_true",
+                        help="Enable verbose output")
+    parser.add_argument("-i", "--interactive", action="store_true",
+                        help="Enable interactive mode on test failure")
+    parser.add_argument("--plugin", help="Path to the LLDB plugin")
+    parser.add_argument("--result-path", help="Path to write the result")
+    args = parser.parse_args()
+
+    plugin_path = args.plugin or os.path.join(os.path.dirname(
+        os.path.realpath(__file__)), "go_lldb_plugin.py")
+
+    try:
+        if args.result_path:
+            exit_code = run_tests_with_result(args.executable, args.sources,
+                                              args.verbose, args.interactive, plugin_path, args.result_path)
+        else:
+            exit_code = run_tests(args.executable, args.sources,
+                                  args.verbose, args.interactive, plugin_path)
+    except Exception as e:
+        log(f"An unexpected error occurred: {str(e)}")
+        exit_code = 2  # Use a different exit code for unexpected errors
+
+    sys.exit(exit_code)
+
+
+if __name__ == "__main__":
+    main()

c/bdwgc/_test/bdwgc.go

@@ -3,9 +3,9 @@ package main
 import (
 	"unsafe"
 
-	"github.com/goplus/llgo/_test/testing"
 	"github.com/goplus/llgo/c"
 	"github.com/goplus/llgo/c/bdwgc"
+	"github.com/goplus/llgo/c/bdwgc/_test/testing"
 )
 
 // ------ Test malloc ------

c/bdwgc/_test/main.go

@@ -1,8 +1,8 @@
 package main
 
 import (
-	"github.com/goplus/llgo/_test/testing"
 	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/bdwgc/_test/testing"
 )
 
 type TestCase struct {

c/c.go

@@ -28,6 +28,7 @@ const (
 )
 
 type (
+	Void    = [0]byte
 	Char    = int8
 	Float   = float32
 	Double  = float64
@@ -68,6 +69,9 @@ func Alloca(size uintptr) Pointer
 //go:linkname AllocaCStr llgo.allocaCStr
 func AllocaCStr(s string) *Char
 
+//go:linkname AllocaCStrs llgo.allocaCStrs
+func AllocaCStrs(strs []string, endWithNil bool) **Char
+
 // TODO(xsw):
 // llgo:link AllocaNew llgo.allocaNew
 func AllocaNew[T any]() *T { return nil }
@@ -75,9 +79,15 @@ func AllocaNew[T any]() *T { return nil }
 //go:linkname Malloc C.malloc
 func Malloc(size uintptr) Pointer
 
+//go:linkname Calloc C.calloc
+func Calloc(num uintptr, size uintptr) Pointer
+
 //go:linkname Free C.free
 func Free(ptr Pointer)
 
+//go:linkname Realloc C.realloc
+func Realloc(ptr Pointer, size uintptr) Pointer
+
 //go:linkname Memcpy C.memcpy
 func Memcpy(dst, src Pointer, n uintptr) Pointer
 
@@ -209,13 +219,22 @@ func Fputc(c Int, fp FilePtr) Int
 //go:linkname Fputs C.fputs
 func Fputs(s *Char, fp FilePtr) Int
 
+//go:linkname Fread C.fread
+func Fread(data Pointer, size, count uintptr, fp FilePtr) uintptr
+
 //go:linkname Fflush C.fflush
 func Fflush(fp FilePtr) Int
 
-// -----------------------------------------------------------------------------
+//go:linkname Fopen C.fopen
+func Fopen(c *Char, mod *Char) FilePtr
 
-//go:linkname Time C.time
+//go:linkname Fclose C.fclose
-func Time(*int32) int32
+func Fclose(fp FilePtr) Int
+
+//go:linkname Perror C.perror
+func Perror(s *Char)
+
+// -----------------------------------------------------------------------------
 
 //go:linkname Usleep C.usleep
 func Usleep(useconds Uint) Int
@@ -257,3 +276,6 @@ func GetoptLong(argc Int, argv **Char, optstring *Char, longopts *Option, longin
 func GetoptLongOnly(argc Int, argv **Char, optstring *Char, longopts *Option, longindex *Int) Int
 
 // -----------------------------------------------------------------------------
+
+//go:linkname Sysconf C.sysconf
+func Sysconf(name Int) Long

c/cjson/_demo/mkjson/mkjson.go

@@ -22,6 +22,22 @@ func main() {
 
 	mod.SetItem(c.Str("items"), syms)
 
-	c.Printf(c.Str("%s\n"), mod.CStr())
+	cstr := mod.CStr()
+	str := c.GoString(cstr)
+	c.Printf(c.Str("%s\n"), cstr)
+	cjson.FreeCStr(cstr)
+
+	mod.Delete()
+
+	cjsonLoad(str)
+}
+
+func cjsonLoad(str string) {
+	mod := cjson.ParseString(str)
+
+	cstr := mod.Print()
+	c.Printf(c.Str("%s\n"), cstr)
+	cjson.FreeCStr(cstr)
+
 	mod.Delete()
 }

c/cjson/cjson.go

@@ -17,7 +17,7 @@
 package cjson
 
 import (
-	_ "unsafe"
+	"unsafe"
 
 	"github.com/goplus/llgo/c"
 )
@@ -26,73 +26,25 @@ const (
 	LLGoPackage = "link: $(pkg-config --libs libcjson); -lcjson"
 )
 
+type Bool c.Int
+
 // llgo:type C
 type JSON struct {
 	Unused [0]byte
 }
 
-//go:linkname Null C.cJSON_CreateNull
+func ParseBytes(value []byte) *JSON {
-func Null() *JSON
+	return ParseWithLength((*c.Char)(unsafe.Pointer(unsafe.SliceData(value))), uintptr(len(value)))
+}
 
-//go:linkname True C.cJSON_CreateTrue
+func ParseString(value string) *JSON {
-func True() *JSON
+	return ParseWithLength((*c.Char)(unsafe.Pointer(unsafe.StringData(value))), uintptr(len(value)))
+}
 
-//go:linkname False C.cJSON_CreateFalse
+// CJSON_PUBLIC(char *) cJSON_PrintUnformatted(const cJSON *item);
-func False() *JSON
-
-//go:linkname Bool C.cJSON_CreateBool
-func Bool(boolean c.Int) *JSON
-
-//go:linkname Number C.cJSON_CreateNumber
-func Number(num float64) *JSON
-
-//go:linkname String C.cJSON_CreateString
-func String(str *c.Char) *JSON
-
-//go:linkname Array C.cJSON_CreateArray
-func Array() *JSON
-
-//go:linkname Object C.cJSON_CreateObject
-func Object() *JSON
-
-// raw json
 //
-//go:linkname Raw C.cJSON_CreateRaw
+// Render a cJSON entity to text for transfer/storage without any formatting.
-func Raw(raw *c.Char) *JSON
-
-// Create a string where valuestring references a string so
-// it will not be freed by Delete
 //
-//go:linkname StringRef C.cJSON_CreateStringReference
-func StringRef(str *c.Char) *JSON
-
-// Create an object that only references it's elements so
-// they will not be freed by Delete
-//
-//go:linkname ObjectRef C.cJSON_CreateObjectReference
-func ObjectRef(child *JSON) *JSON
-
-// Create an array that only references it's elements so
-// they will not be freed by Delete
-//
-//go:linkname ArrayRef C.cJSON_CreateArrayReference
-func ArrayRef(child *JSON) *JSON
-
-// Delete a JSON entity and all subentities.
-//
-// llgo:link (*JSON).Delete C.cJSON_Delete
-func (o *JSON) Delete() {}
-
-// Append item to the specified array.
-//
-// llgo:link (*JSON).AddItem C.cJSON_AddItemToArray
-func (o *JSON) AddItem(item *JSON) c.Int { return 0 }
-
-// Append item to the specified object.
-//
-// llgo:link (*JSON).SetItem C.cJSON_AddItemToObject
-func (o *JSON) SetItem(key *c.Char, item *JSON) c.Int { return 0 }
-
 // llgo:link (*JSON).CStr C.cJSON_PrintUnformatted
 func (o *JSON) CStr() *c.Char { return nil }
 
@@ -101,21 +53,618 @@ func (o *JSON) CStr() *c.Char { return nil }
 // llgo:link (*JSON).Cstr C.cJSON_PrintUnformatted
 func (o *JSON) Cstr() *c.Char { return nil }
 
+// malloc/free objects using the malloc/free functions that have been set with cJSON_InitHooks
+//
+//go:linkname FreeCStr C.cJSON_free
+func FreeCStr(*c.Char)
+
+// CJSON_PUBLIC(const char*) cJSON_Version(void);
+//
+// returns the version of cJSON as a string
+//
+//go:linkname Version C.cJSON_Version
+func Version() *c.Char
+
+// CJSON_PUBLIC(cJSON *) cJSON_Parse(const char *value);
+//
+// Memory Management: the caller is always responsible to free
+// the results from all variants of cJSON_Parse (with cJSON_Delete)
+// and cJSON_Print (with stdlib free, cJSON_Hooks.free_fn, or
+// cJSON_free as appropriate). The exception is cJSON_PrintPreallocated,
+// where the caller has full responsibility of the buffer.
+//
+//go:linkname Parse C.cJSON_Parse
+func Parse(value *c.Char) *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_ParseWithLength(const char *value, size_t buffer_length);
+//
+// Memory Management: the caller is always responsible to free
+// the results from all variants of cJSON_Parse (with cJSON_Delete)
+// and cJSON_Print (with stdlib free, cJSON_Hooks.free_fn, or
+// cJSON_free as appropriate). The exception is cJSON_PrintPreallocated,
+// where the caller has full responsibility of the buffer.
+//
+//go:linkname ParseWithLength C.cJSON_ParseWithLength
+func ParseWithLength(value *c.Char, valueLength uintptr) *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_ParseWithOpts(const char *value, const char **return_parse_end, cJSON_Bool require_null_terminated);
+//
+// ParseWithOpts allows you to require (and check) that the JSON is null terminated,
+// and to retrieve the pointer to the final byte parsed.
+// If you supply a ptr in return_parse_end and parsing fails, then
+// return_parse_end will contain a pointer to the error so will match
+// cJSON_GetErrorPtr().
+//
+//go:linkname ParseWithOpts C.cJSON_ParseWithOpts
+func ParseWithOpts(value *c.Char, return_parse_end **c.Char, require_null_terminated Bool) *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_ParseWithLengthOpts(const char *value, size_t buffer_length, const char **return_parse_end, cJSON_Bool require_null_terminated);
+//
+// ParseWithOpts allows you to require (and check) that the JSON is null terminated,
+// and to retrieve the pointer to the final byte parsed.
+// If you supply a ptr in return_parse_end and parsing fails, then
+// return_parse_end will contain a pointer to the error so will match
+// cJSON_GetErrorPtr().
+//
+//go:linkname ParseWithLengthOpts C.cJSON_ParseWithLengthOpts
+func ParseWithLengthOpts(value *c.Char, buffer_length uintptr, return_parse_end **c.Char, require_null_terminated Bool) *JSON
+
+// CJSON_PUBLIC(char *) cJSON_Print(const cJSON *item);
 // Render a JSON entity to text for transfer/storage.
 //
 // llgo:link (*JSON).Print C.cJSON_Print
 func (o *JSON) Print() *c.Char { return nil }
 
+// CJSON_PUBLIC(char *) cJSON_PrintUnformatted(const cJSON *item);
 // Render a JSON entity to text for transfer/storage without any formatting.
 //
 // llgo:link (*JSON).PrintUnformatted C.cJSON_PrintUnformatted
 func (o *JSON) PrintUnformatted() *c.Char { return nil }
 
+// CJSON_PUBLIC(char *) cJSON_PrintBuffered(const cJSON *item, int prebuffer, cJSON_Bool fmt);
+//
 // Render a JSON entity to text using a buffered strategy.
-//
 // prebuffer is a guess at the final size. guessing well reduces reallocation.
-//
 // fmt=0 gives unformatted, =1 gives formatted.
 //
 // llgo:link (*JSON).PrintBuffered C.cJSON_PrintBuffered
-func (o *JSON) PrintBuffered(prebuffer c.Int, fmt c.Int) *c.Char { return nil }
+func (o *JSON) PrintBuffered(prebuffer c.Int, fmt Bool) *c.Char { return nil }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_PrintPreallocated(cJSON *item, char *buffer, const int length, const cJSON_Bool format);
+//
+// Render a cJSON entity to text using a buffer already allocated in memory with given
+// length. Returns 1 on success and 0 on failure.
+// note that cJSON is not always 100% accurate in estimating how much memory it will use,
+// so to be safe allocate 5 bytes more than you actually need
+//
+// llgo:link (*JSON).PrintPreallocated C.cJSON_PrintPreallocated
+func (o *JSON) PrintPreallocated(buffer *c.Char, length c.Int, format Bool) Bool {
+	return Bool(0)
+}
+
+// CJSON_PUBLIC(void) cJSON_Delete(cJSON *item);
+// Delete a JSON entity and all subentities.
+//
+// llgo:link (*JSON).Delete C.cJSON_Delete
+func (o *JSON) Delete() {}
+
+// CJSON_PUBLIC(int) cJSON_GetArraySize(const cJSON *array);
+//
+// Returns the number of items in an array (or object).
+//
+// llgo:link (*JSON).GetArraySize C.cJSON_GetArraySize
+func (o *JSON) GetArraySize() c.Int { return 0 }
+
+// CJSON_PUBLIC(cJSON *) cJSON_GetArrayItem(const cJSON *array, int index);
+//
+// Retrieve item number "index" from array "array". Returns NULL if unsuccessful.
+//
+// llgo:link (*JSON).GetArrayItem C.cJSON_GetArrayItem
+func (o *JSON) GetArrayItem(index c.Int) *JSON { return nil }
+
+// CJSON_PUBLIC(cJSON *) cJSON_GetObjectItem(const cJSON * const object, const char * const string);
+//
+// Get item "string" from object. Case insensitive.
+//
+// llgo:link (*JSON).GetObjectItem C.cJSON_GetObjectItem
+func (o *JSON) GetObjectItem(s *c.Char) *JSON { return nil }
+
+// CJSON_PUBLIC(cJSON *) cJSON_GetObjectItemCaseSensitive(const cJSON * const object, const char * const string);
+//
+// Get item "string" from object. Case sensitive.
+//
+// llgo:link (*JSON).GetObjectItemCaseSensitive C.cJSON_GetObjectItemCaseSensitive
+func (o *JSON) GetObjectItemCaseSensitive(key *c.Char) *JSON { return nil }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_HasObjectItem(const cJSON *object, const char *string);
+//
+// llgo:link (*JSON).HasObjectItem C.cJSON_HasObjectItem
+func (o *JSON) HasObjectItem(s *c.Char) Bool { return Bool(0) }
+
+// CJSON_PUBLIC(const char *) cJSON_GetErrorPtr(void);
+//
+// For analysing failed parses. This returns a pointer to the parse error.
+// You'll probably need to look a few chars back to make sense of it.
+// Defined when cJSON_Parse() returns 0. 0 when cJSON_Parse() succeeds.
+//
+//go:linkname GetErrorPtr C.cJSON_GetErrorPtr
+func GetErrorPtr() *c.Char
+
+// CJSON_PUBLIC(char *) cJSON_GetStringValue(const cJSON * const item);
+//
+//	Check item type and return its value
+//
+// llgo:link (*JSON).GetStringValue C.cJSON_GetStringValue
+func (o *JSON) GetStringValue() *c.Char { return nil }
+
+// CJSON_PUBLIC(double) cJSON_GetNumberValue(const cJSON * const item);
+//
+//	Check item type and return its value
+//
+// llgo:link (*JSON).GetNumberValue C.cJSON_GetNumberValue
+func (o *JSON) GetNumberValue() c.Double { return 0 }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_IsInvalid(const cJSON * const item);
+//
+//	These functions check the type of an item
+//
+// llgo:link (*JSON).IsInvalid C.cJSON_IsInvalid
+func (o *JSON) IsInvalid() Bool { return Bool(0) }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_IsFalse(const cJSON * const item);
+//
+//	These functions check the type of an item
+//
+// llgo:link (*JSON).IsFalse C.cJSON_IsFalse
+func (o *JSON) IsFalse() Bool { return Bool(0) }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_IsTrue(const cJSON * const item);
+//
+//	These functions check the type of an item
+//
+// llgo:link (*JSON).IsTrue C.cJSON_IsTrue
+func (o *JSON) IsTrue() Bool { return Bool(0) }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_IsBool(const cJSON * const item);
+//
+//	These functions check the type of an item
+//
+// llgo:link (*JSON).IsBool C.cJSON_IsBool
+func (o *JSON) IsBool() Bool { return Bool(0) }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_IsNull(const cJSON * const item);
+//
+//	These functions check the type of an item
+//
+// llgo:link (*JSON).IsNull C.cJSON_IsNull
+func (o *JSON) IsNull() Bool { return Bool(0) }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_IsNumber(const cJSON * const item);
+//
+//	These functions check the type of an item
+//
+// llgo:link (*JSON).IsNumber C.cJSON_IsNumber
+func (o *JSON) IsNumber() Bool { return Bool(0) }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_IsString(const cJSON * const item);
+//
+//	These functions check the type of an item
+//
+// llgo:link (*JSON).IsString C.cJSON_IsString
+func (o *JSON) IsString() Bool { return Bool(0) }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_IsArray(const cJSON * const item);
+//
+//	These functions check the type of an item
+//
+// llgo:link (*JSON).IsArray C.cJSON_IsArray
+func (o *JSON) IsArray() Bool { return Bool(0) }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_IsObject(const cJSON * const item);
+//
+//	These functions check the type of an item
+//
+// llgo:link (*JSON).IsObject C.cJSON_IsObject
+func (o *JSON) IsObject() Bool { return Bool(0) }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_IsRaw(const cJSON * const item);
+//
+//	These functions check the type of an item
+//
+// llgo:link (*JSON).IsRaw C.cJSON_IsRaw
+func (o *JSON) IsRaw() Bool { return Bool(0) }
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateNull(void);
+//
+// These calls create a cJSON item of the appropriate type.
+//
+//go:linkname Null C.cJSON_CreateNull
+func Null() *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateNull(void);
+//
+// same as Null func
+//
+//go:linkname CreateNull C.cJSON_CreateNull
+func CreateNull() *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateTrue(void);
+//
+//go:linkname True C.cJSON_CreateTrue
+func True() *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateTrue(void);
+//
+// same as True func
+//
+//go:linkname CreateTrue C.cJSON_CreateTrue
+func CreateTrue() *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateFalse(void);
+//
+//go:linkname False C.cJSON_CreateFalse
+func False() *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateFalse(void);
+//
+// same as False func
+//
+//go:linkname CreateFalse C.cJSON_CreateFalse
+func CreateFalse() *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateBool(cJSON_Bool boolean);
+//
+// same as Bool func
+//
+//go:linkname CreateBool C.cJSON_CreateBool
+func CreateBool(boolean c.Int) *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateNumber(double num);
+//
+//go:linkname Number C.cJSON_CreateNumber
+func Number(num float64) *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateNumber(double num);
+//
+// same as Number func
+//
+//go:linkname CreateNumber C.cJSON_CreateNumber
+func CreateNumber(num float64) *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateString(const char *string);
+//
+//go:linkname String C.cJSON_CreateString
+func String(str *c.Char) *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateString(const char *string);
+//
+// same as String func
+//
+//go:linkname CreateString C.cJSON_CreateString
+func CreateString(str *c.Char) *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateRaw(const char *raw);
+// raw json
+//
+//go:linkname Raw C.cJSON_CreateRaw
+func Raw(raw *c.Char) *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateRaw(const char *raw);
+//
+// same as Raw func
+//
+//go:linkname CreateRaw C.cJSON_CreateRaw
+func CreateRaw(raw *c.Char) *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateArray(void);
+//
+//go:linkname Array C.cJSON_CreateArray
+func Array() *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateArray(void);
+//
+// same as Array func
+//
+//go:linkname CreateArray C.cJSON_CreateArray
+func CreateArray() *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateObject(void);
+//
+//go:linkname Object C.cJSON_CreateObject
+func Object() *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateObject(void);
+//
+// same as Object func
+//
+//go:linkname CreateObject C.cJSON_CreateObject
+func CreateObject() *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateStringReference(const char *string);
+//
+// Create a string where valuestring references a string so
+// it will not be freed by Delete
+//
+//go:linkname StringRef C.cJSON_CreateStringReference
+func StringRef(str *c.Char) *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateStringReference(const char *string);
+//
+// same as StringRef func
+//
+//go:linkname CreateStringReference C.cJSON_CreateStringReference
+func CreateStringReference(str *c.Char) *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateObjectReference(const cJSON *child);
+//
+// Create an object that only references it's elements so
+// they will not be freed by Delete
+//
+//go:linkname ObjectRef C.cJSON_CreateObjectReference
+func ObjectRef(child *JSON) *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateObjectReference(const cJSON *child);
+//
+// same as ObjectRef func
+//
+//go:linkname CreateObjectReference C.cJSON_CreateObjectReference
+func CreateObjectReference(child *JSON) *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateArrayReference(const cJSON *child);
+//
+// Create an array that only references it's elements so
+// they will not be freed by Delete
+//
+//go:linkname ArrayRef C.cJSON_CreateArrayReference
+func ArrayRef(child *JSON) *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateArrayReference(const cJSON *child);
+//
+// same as ArrayRef func
+//
+//go:linkname CreateArrayReference C.cJSON_CreateArrayReference
+func CreateArrayReference(child *JSON) *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateIntArray(const int *numbers, int count);
+//
+//go:linkname CreateIntArray C.cJSON_CreateIntArray
+func CreateIntArray(numbers *c.Int, count c.Int) *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateFloatArray(const float *numbers, int count);
+//
+//go:linkname CreateFloatArray C.cJSON_CreateFloatArray
+func CreateFloatArray(numbers *c.Float, count c.Int) *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateDoubleArray(const double *numbers, int count);
+//
+//go:linkname CreateDoubleArray C.cJSON_CreateDoubleArray
+func CreateDoubleArray(numbers *c.Double, count c.Int) *JSON
+
+// CJSON_PUBLIC(cJSON *) cJSON_CreateStringArray(const char *const *strings, int count);
+//
+//go:linkname CreateStringArray C.cJSON_CreateStringArray
+func CreateStringArray(strings *c.Char, count c.Int) *JSON
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_AddItemToArray(cJSON *array, cJSON *item);
+//
+// Append item to the specified array.
+//
+// llgo:link (*JSON).AddItem C.cJSON_AddItemToArray
+func (o *JSON) AddItem(item *JSON) Bool { return Bool(0) }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_AddItemToArray(cJSON *array, cJSON *item);
+//
+// same as AddItem func
+//
+// llgo:link (*JSON).AddItemToArray C.cJSON_AddItemToArray
+func (o *JSON) AddItemToArray(item *JSON) Bool { return Bool(0) }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_AddItemToObject(cJSON *object, const char *string, cJSON *item);
+//
+// Append item to the specified object.
+//
+// llgo:link (*JSON).SetItem C.cJSON_AddItemToObject
+func (o *JSON) SetItem(key *c.Char, item *JSON) Bool { return Bool(0) }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_AddItemToObject(cJSON *object, const char *string, cJSON *item);
+//
+// same as SetItem func
+//
+// llgo:link (*JSON).AddItemToObject C.cJSON_AddItemToObject
+func (o *JSON) AddItemToObject(key *c.Char, item *JSON) Bool { return Bool(0) }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_AddItemToObjectCS(cJSON *object, const char *string, cJSON *item);
+//
+// Use this when string is definitely const (i.e. a literal, or as good as),
+// and will definitely survive the cJSON object.
+// warning that When this function was used, make sure to always check that
+// (item->type & cJSON_StringIsConst) is zero before writing to `item->string`
+//
+// llgo:link (*JSON).AddItemToObjectCS C.cJSON_AddItemToObjectCS
+func (o *JSON) AddItemToObjectCS(s *c.Char, item *JSON) Bool { return Bool(0) }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item);
+//
+// Append reference to item to the specified array/object.
+// Use this when you want to add an existing cJSON to a new cJSON,
+// but don't want to corrupt your existing cJSON.
+//
+// llgo:link (*JSON).AddItemReferenceToArray C.cJSON_AddItemReferenceToArray
+func (o *JSON) AddItemReferenceToArray(item *JSON) Bool { return Bool(0) }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_AddItemReferenceToObject(cJSON *object, const char *string, cJSON *item);
+//
+// llgo:link (*JSON).AddItemReferenceToObject C.cJSON_AddItemReferenceToObject
+func (o *JSON) AddItemReferenceToObject(s *c.Char, item *JSON) Bool { return Bool(0) }
+
+// CJSON_PUBLIC(cJSON *) cJSON_DetachItemViaPointer(cJSON *parent, cJSON * const item);
+//
+// Remove/Detach items from Arrays/Objects.
+//
+// llgo:link (*JSON).DetachItemViaPointer C.cJSON_DetachItemViaPointer
+func (o *JSON) DetachItemViaPointer(item *JSON) *JSON { return nil }
+
+// CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromArray(cJSON *array, int which);
+//
+// llgo:link (*JSON).DetachItemFromArray C.cJSON_DetachItemFromArray
+func (o *JSON) DetachItemFromArray(which c.Int) *JSON { return nil }
+
+// CJSON_PUBLIC(void) cJSON_DeleteItemFromArray(cJSON *array, int which);
+//
+// llgo:link (*JSON).DeleteItemFromArray C.cJSON_DeleteItemFromArray
+func (o *JSON) DeleteItemFromArray(which c.Int) {}
+
+// CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromObject(cJSON *object, const char *string);
+//
+// llgo:link (*JSON).DetachItemFromObject C.cJSON_DetachItemFromObject
+func (o *JSON) DetachItemFromObject(s *c.Char) *JSON { return nil }
+
+// CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromObjectCaseSensitive(cJSON *object, const char *string);
+//
+// llgo:link (*JSON).DetachItemFromObjectCaseSensitive C.cJSON_DetachItemFromObjectCaseSensitive
+func (o *JSON) DetachItemFromObjectCaseSensitive(s *c.Char) *JSON { return nil }
+
+// CJSON_PUBLIC(void) cJSON_DeleteItemFromObject(cJSON *object, const char *string);
+//
+// llgo:link (*JSON).DeleteItemFromObject C.cJSON_DeleteItemFromObject
+func (o *JSON) DeleteItemFromObject(s *c.Char) {}
+
+// CJSON_PUBLIC(void) cJSON_DeleteItemFromObjectCaseSensitive(cJSON *object, const char *string);
+//
+// llgo:link (*JSON).DeleteItemFromObjectCaseSensitive C.cJSON_DeleteItemFromObjectCaseSensitive
+func (o *JSON) DeleteItemFromObjectCaseSensitive(s *c.Char) {}
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_InsertItemInArray(cJSON *array, int which, cJSON *newitem);
+//
+// Update array items.
+// Shifts pre-existing items to the right.
+//
+// llgo:link (*JSON).InsertItemInArray C.cJSON_InsertItemInArray
+func (o *JSON) InsertItemInArray(which c.Int, newitem *JSON) Bool { return Bool(0) }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_ReplaceItemViaPointer(cJSON * const parent, cJSON * const item, cJSON * replacement);
+//
+// llgo:link (*JSON).ReplaceItemViaPointer C.cJSON_ReplaceItemViaPointer
+func (o *JSON) ReplaceItemViaPointer(item *JSON, replacement *JSON) Bool { return Bool(0) }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_ReplaceItemInArray(cJSON *array, int which, cJSON *newitem);
+//
+// llgo:link (*JSON).ReplaceItemInArray C.cJSON_ReplaceItemInArray
+func (o *JSON) ReplaceItemInArray(which c.Int, newitem *JSON) Bool { return Bool(0) }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_ReplaceItemInObject(cJSON *object,const char *string,cJSON *newitem);
+//
+// llgo:link (*JSON).ReplaceItemInObject C.cJSON_ReplaceItemInObject
+func (o *JSON) ReplaceItemInObject(s *c.Char, newitem *JSON) Bool { return Bool(0) }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_ReplaceItemInObjectCaseSensitive(cJSON *object,const char *string,cJSON *newitem);
+//
+// llgo:link (*JSON).ReplaceItemInObjectCaseSensitive C.cJSON_ReplaceItemInObjectCaseSensitive
+func (o *JSON) ReplaceItemInObjectCaseSensitive(s *c.Char, newitem *JSON) Bool {
+	return Bool(0)
+}
+
+// CJSON_PUBLIC(cJSON *) cJSON_Duplicate(const cJSON *item, cJSON_Bool recurse);
+//
+//	Duplicate a cJSON item
+//
+// Duplicate will create a new, identical cJSON item to the one you pass,
+// in new memory that will need to be released. With recurse!=0,
+// it will duplicate any children connected to the item.
+// The item->next and ->prev pointers are always zero on return from Duplicate.
+//
+// llgo:link (*JSON).Duplicate C.cJSON_Duplicate
+func (o *JSON) Duplicate(recurse Bool) *JSON { return nil }
+
+// CJSON_PUBLIC(cJSON_Bool) cJSON_Compare(const cJSON * const a, const cJSON * const b, const cJSON_Bool case_sensitive);
+//
+// Recursively compare two cJSON items for equality. If either a or b is NULL or invalid,
+// they will be considered unequal. case_sensitive determines if object keys are treated
+// case sensitive (1) or case insensitive (0)
+//
+// llgo:link (*JSON).Compare C.cJSON_Compare
+func (o *JSON) Compare(b *JSON, case_sensitive Bool) Bool { return Bool(0) }
+
+// CJSON_PUBLIC(void) cJSON_Minify(char *json);
+//
+// Minify a strings, remove blank characters(such as ' ', '\t', '\r', '\n') from strings.
+// The input pointer json cannot point to a read-only address area, such as a string constant,
+// but should point to a readable and writable address area.
+//
+//go:linkname Minify C.cJSON_Minify
+func Minify()
+
+// CJSON_PUBLIC(cJSON*) cJSON_AddNullToObject(cJSON * const object, const char * const name);
+//
+// Helper functions for creating and adding items to an object at the same time.
+// They return the added item or NULL on failure.
+//
+// llgo:link (*JSON).AddNullToObject C.cJSON_AddNullToObject
+func (o *JSON) AddNullToObject(name *c.Char) *JSON { return nil }
+
+// CJSON_PUBLIC(cJSON*) cJSON_AddTrueToObject(cJSON * const object, const char * const name);
+//
+// llgo:link (*JSON).AddTrueToObject C.cJSON_AddTrueToObject
+func (o *JSON) AddTrueToObject(name *c.Char) *JSON { return nil }
+
+// CJSON_PUBLIC(cJSON*) cJSON_AddFalseToObject(cJSON * const object, const char * const name);
+//
+// llgo:link (*JSON).AddFalseToObject C.cJSON_AddFalseToObject
+func (o *JSON) AddFalseToObject(name *c.Char) *JSON { return nil }
+
+// CJSON_PUBLIC(cJSON*) cJSON_AddBoolToObject(cJSON * const object, const char * const name, const cJSON_Bool boolean);
+//
+// llgo:link (*JSON).AddBoolToObject C.cJSON_AddBoolToObject
+func (o *JSON) AddBoolToObject(name *c.Char, b Bool) *JSON { return nil }
+
+// CJSON_PUBLIC(cJSON*) cJSON_AddNumberToObject(cJSON * const object, const char * const name, const double number);
+//
+// llgo:link (*JSON).AddNumberToObject C.cJSON_AddNumberToObject
+func (o *JSON) AddNumberToObject(name *c.Char, num c.Double) *JSON { return nil }
+
+// CJSON_PUBLIC(cJSON*) cJSON_AddStringToObject(cJSON * const object, const char * const name, const char * const string);
+//
+// llgo:link (*JSON).AddStringToObject C.cJSON_AddStringToObject
+func (o *JSON) AddStringToObject(name *c.Char, s *c.Char) *JSON { return nil }
+
+// CJSON_PUBLIC(cJSON*) cJSON_AddRawToObject(cJSON * const object, const char * const name, const char * const raw);
+//
+// llgo:link (*JSON).AddRawToObject C.cJSON_AddRawToObject
+func (o *JSON) AddRawToObject(name *c.Char, raw *c.Char) *JSON { return nil }
+
+// CJSON_PUBLIC(cJSON*) cJSON_AddObjectToObject(cJSON * const object, const char * const name);
+//
+// llgo:link (*JSON).AddObjectToObject C.cJSON_AddObjectToObject
+func (o *JSON) AddObjectToObject(name *c.Char) *JSON { return nil }
+
+// CJSON_PUBLIC(cJSON*) cJSON_AddArrayToObject(cJSON * const object, const char * const name);
+//
+// llgo:link (*JSON).AddArrayToObject C.cJSON_AddArrayToObject
+func (o *JSON) AddArrayToObject(name *c.Char) *JSON { return nil }
+
+// CJSON_PUBLIC(double) cJSON_SetNumberHelper(cJSON *object, double number);
+//
+// helper for the cJSON_SetNumberValue macro
+//
+// llgo:link (*JSON).SetNumberHelper C.cJSON_SetNumberHelper
+func (o *JSON) SetNumberHelper(number c.Double) c.Double { return 0 }
+
+// CJSON_PUBLIC(char*) cJSON_SetValuestring(cJSON *object, const char *valuestring);
+//
+// Change the valuestring of a cJSON_String object, only takes effect when type of
+// object is cJSON_String
+//
+// llgo:link (*JSON).SetValuestring C.cJSON_SetValuestring
+func (o *JSON) SetValuestring(v *c.Char) *c.Char { return nil }
+
+// CJSON_PUBLIC(void *) cJSON_malloc(size_t size);
+//
+// malloc/free objects using the malloc/free functions that have been set with cJSON_InitHooks
+//
+//go:linkname Malloc C.cJSON_malloc
+func Malloc(size uintptr)
+
+// CJSON_PUBLIC(void) cJSON_free(void *object);
+//
+//go:linkname Free C.cJSON_free
+func Free(ptr unsafe.Pointer)

c/clang/_demo/castdump/astdump.go

@@ -1,49 +0,0 @@
-package main
-
-import (
-	"github.com/goplus/llgo/c"
-	"github.com/goplus/llgo/c/clang"
-)
-
-func visit(cursor, parent clang.Cursor, clientData c.Pointer) clang.ChildVisitResult {
-	depth := *(*c.Uint)(clientData)
-	printAST(cursor, depth+1)
-	return clang.ChildVisit_Continue
-}
-
-func printAST(cursor clang.Cursor, depth c.Uint) {
-	cursorKind := cursor.Kind.String()
-	cursorSpelling := cursor.String()
-
-	for i := c.Uint(0); i < depth; i++ {
-		c.Fputs(c.Str("  "), c.Stdout)
-	}
-
-	c.Printf(c.Str("%s: %s\n"), cursorKind.CStr(), cursorSpelling.CStr())
-
-	cursorKind.Dispose()
-	cursorSpelling.Dispose()
-
-	clang.VisitChildren(cursor, visit, c.Pointer(&depth))
-}
-
-func main() {
-	index := clang.CreateIndex(0, 0)
-	unit := index.ParseTranslationUnit(
-		c.Str("todo"),
-		nil, 0,
-		nil, 0,
-		clang.TranslationUnit_None,
-	)
-
-	if unit == nil {
-		println("Unable to parse translation unit. Quitting.")
-		c.Exit(1)
-	}
-
-	cursor := unit.Cursor()
-	printAST(cursor, 0)
-
-	unit.Dispose()
-	index.Dispose()
-}

c/clang/_demo/inclusion/inclusion.go

@@ -0,0 +1,35 @@
+package main
+
+import (
+	"unsafe"
+
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/clang"
+	"github.com/goplus/llgo/chore/_xtool/llcppsymg/clangutils"
+)
+
+func main() {
+	_, unit, err := clangutils.CreateTranslationUnit(&clangutils.Config{
+		File:  "#include <stddef.h>",
+		Temp:  true,
+		IsCpp: false,
+	})
+	if err != nil {
+		println(err.Error())
+		return
+	}
+
+	clang.GetInclusions(unit, func(included_file clang.File, inclusion_stack *clang.SourceLocation, include_len c.Uint, client_data c.Pointer) {
+		filename := included_file.FileName()
+		c.Printf(c.Str("Included file: %s Include length: %d\n"), filename.CStr(), include_len)
+		inclusions := unsafe.Slice(inclusion_stack, include_len)
+		for i := range inclusions {
+			loc := inclusions[i]
+			var file clang.File
+			var line, column c.Uint
+			loc.SpellingLocation(&file, &line, &column, nil)
+			filename = file.FileName()
+			c.Printf(c.Str("  included from: %s:%d:%d\n"), filename.CStr(), line, column)
+		}
+	}, nil)
+}

c/clang/_demo/symboldump/symboldump.go

@@ -0,0 +1,163 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"unsafe"
+
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/clang"
+)
+
+type Context struct {
+	namespaceName string
+	className     string
+	unit          *clang.TranslationUnit
+}
+
+func newContext() *Context {
+	return &Context{}
+}
+
+func (c *Context) setNamespaceName(name string) {
+	c.namespaceName = name
+}
+
+func (c *Context) setClassName(name string) {
+	c.className = name
+}
+
+func (c *Context) setUnit(unit *clang.TranslationUnit) {
+	c.unit = unit
+}
+
+var context = newContext()
+
+func printCursorLocation(cursor clang.Cursor) {
+	loc := cursor.Location()
+	var file clang.File
+	var line, column c.Uint
+
+	loc.SpellingLocation(&file, &line, &column, nil)
+	filename := file.FileName()
+	defer filename.Dispose()
+
+	c.Printf(c.Str("%s:%d:%d\n"), filename.CStr(), line, column)
+}
+
+func printMarcoInfo(cursor clang.Cursor) {
+	printCursorLocation(cursor)
+	name := cursor.String()
+	c.Printf(c.Str("Marco Name: %s\n"), name.CStr())
+	ran := cursor.Extent()
+	var numTokens c.Uint
+	var tokens *clang.Token
+	context.unit.Tokenize(ran, &tokens, &numTokens)
+	c.Printf(c.Str("Content: "))
+
+	tokensSlice := unsafe.Slice(tokens, int(numTokens))
+	for _, tok := range tokensSlice {
+		tokStr := context.unit.Token(tok)
+		c.Printf(c.Str("%s "), tokStr.CStr())
+		tokStr.Dispose()
+	}
+
+	c.Printf(c.Str("\n"))
+	println("--------------------------------")
+}
+func printFuncInfo(cursor clang.Cursor) {
+	printCursorLocation(cursor)
+
+	cursorStr := cursor.String()
+	symbol := cursor.Mangling()
+	defer symbol.Dispose()
+	defer cursorStr.Dispose()
+
+	if context.namespaceName != "" && context.className != "" {
+		fmt.Printf("%s:%s:", context.namespaceName, context.className)
+	} else if context.namespaceName != "" {
+		fmt.Printf("%s:", context.namespaceName)
+	}
+	c.Printf(c.Str("%s\n"), cursorStr.CStr())
+
+	if cursor.Kind == clang.CursorCXXMethod || cursor.Kind == clang.CursorFunctionDecl {
+		c.Printf(c.Str("symbol:%s\n"), symbol.CStr())
+
+		typeStr := cursor.ResultType().String()
+		defer typeStr.Dispose()
+		c.Printf(c.Str("Return Type: %s\n"), typeStr.CStr())
+		c.Printf(c.Str("Parameters(%d): ( "), cursor.NumArguments())
+
+		for i := 0; i < int(cursor.NumArguments()); i++ {
+			argCurSor := cursor.Argument(c.Uint(i))
+			argType := argCurSor.Type().String()
+			argName := argCurSor.String()
+			c.Printf(c.Str("%s %s"), argType.CStr(), argName.CStr())
+			if i < int(cursor.NumArguments())-1 {
+				c.Printf(c.Str(", "))
+			}
+
+			argType.Dispose()
+			argName.Dispose()
+		}
+
+		c.Printf(c.Str(" )\n"))
+		println("--------------------------------")
+	}
+}
+
+func visit(cursor, parent clang.Cursor, clientData c.Pointer) clang.ChildVisitResult {
+	if cursor.Kind == clang.CursorMacroDefinition {
+		printMarcoInfo(cursor)
+	} else if cursor.Kind == clang.CursorNamespace {
+		nameStr := cursor.String()
+		context.setNamespaceName(c.GoString(nameStr.CStr()))
+		clang.VisitChildren(cursor, visit, nil)
+		context.setNamespaceName("")
+	} else if cursor.Kind == clang.CursorClassDecl {
+		nameStr := cursor.String()
+		context.setClassName(c.GoString(nameStr.CStr()))
+		clang.VisitChildren(cursor, visit, nil)
+		context.setClassName("")
+	} else if cursor.Kind == clang.CursorCXXMethod || cursor.Kind == clang.CursorFunctionDecl {
+		printFuncInfo(cursor)
+	}
+
+	return clang.ChildVisit_Continue
+}
+
+func parse(filename *c.Char) {
+	index := clang.CreateIndex(0, 0)
+	args := make([]*c.Char, 3)
+	args[0] = c.Str("-x")
+	args[1] = c.Str("c++")
+	args[2] = c.Str("-std=c++11")
+	unit := index.ParseTranslationUnit(
+		filename,
+		unsafe.SliceData(args), 3,
+		nil, 0,
+		clang.DetailedPreprocessingRecord,
+	)
+
+	if unit == nil {
+		println("Unable to parse translation unit. Quitting.")
+		c.Exit(1)
+	}
+
+	context.setUnit(unit)
+	cursor := unit.Cursor()
+
+	clang.VisitChildren(cursor, visit, nil)
+	unit.Dispose()
+	index.Dispose()
+}
+
+func main() {
+	if c.Argc != 2 {
+		fmt.Fprintln(os.Stderr, "Usage: <C++ header file>\n")
+		return
+	} else {
+		sourceFile := *c.Advance(c.Argv, 1)
+		parse(sourceFile)
+	}
+}

c/clang/_wrap/cursor.cpp

@@ -0,0 +1,216 @@
+#include <clang-c/Index.h>
+#include <stdio.h>
+
+typedef enum CXChildVisitResult (*wrap_CXCursorVisitor)(CXCursor *cursor, CXCursor *parent, CXClientData client_data);
+
+typedef struct {
+    CXClientData data;
+    wrap_CXCursorVisitor visitor;
+} wrap_data;
+
+CXChildVisitResult wrap_visitor(CXCursor cursor, CXCursor parent, CXClientData data) {
+    wrap_data *d = (wrap_data *)(data);
+    return d->visitor(&cursor, &parent, d->data);
+}
+
+extern "C" {
+
+void wrap_clang_getLocation(CXTranslationUnit tu, CXFile file, unsigned line, unsigned column, CXSourceLocation *loc) {
+    *loc = clang_getLocation(tu, file, line, column);
+}
+
+void wrap_clang_getLocationForOffset(CXTranslationUnit tu, CXFile file, unsigned offset, CXSourceLocation *loc) {
+    *loc = clang_getLocationForOffset(tu, file, offset);
+}
+
+void wrap_clang_getTranslationUnitCursor(CXTranslationUnit uint, CXCursor *cur) {
+    *cur = clang_getTranslationUnitCursor(uint);
+}
+
+unsigned wrap_clang_equalCursors(CXCursor *cursor1, CXCursor *cursor2) {
+    return clang_equalCursors(*cursor1, *cursor2);
+}
+
+int wrap_clang_Cursor_isNull(CXCursor *cursor) { return clang_Cursor_isNull(*cursor); }
+
+void wrap_clang_getCursorSemanticParent(CXCursor *C, CXCursor *parent) { *parent = clang_getCursorSemanticParent(*C); }
+
+void wrap_clang_getCursorLexicalParent(CXCursor *C, CXCursor *parent) { *parent = clang_getCursorLexicalParent(*C); }
+
+void wrap_clang_getOverriddenCursors(CXCursor *cursor, CXCursor **overridden, unsigned *num_overridden) {
+    clang_getOverriddenCursors(*cursor, overridden, num_overridden);
+}
+
+CXFile wrap_clang_getIncludedFile(CXCursor *cursor) { return clang_getIncludedFile(*cursor); }
+
+void wrap_clang_getCursor(CXTranslationUnit uint, CXSourceLocation *loc, CXCursor *cur) {
+    *cur = clang_getCursor(uint, *loc);
+}
+
+void wrap_clang_getCursorLocation(CXCursor *cur, CXSourceLocation *loc) { *loc = clang_getCursorLocation(*cur); }
+
+void wrap_clang_getCursorExtent(CXCursor *cur, CXSourceRange *range) { *range = clang_getCursorExtent(*cur); }
+
+void wrap_clang_getCursorType(CXCursor *cur, CXType *typ) { *typ = clang_getCursorType(*cur); }
+
+CXString wrap_clang_getTypeSpelling(CXType *typ) { return clang_getTypeSpelling(*typ); }
+
+void wrap_clang_getTypedefDeclUnderlyingType(CXCursor *cur, CXType *typ) {
+    *typ = clang_getTypedefDeclUnderlyingType(*cur);
+}
+
+long long wrap_clang_getEnumConstantDeclValue(CXCursor *cur) { return clang_getEnumConstantDeclValue(*cur); }
+
+int wrap_clang_Cursor_getNumArguments(CXCursor *cur) { return clang_Cursor_getNumArguments(*cur); }
+
+void wrap_clang_Cursor_getArgument(CXCursor *C, unsigned i, CXCursor *argCur) {
+    *argCur = clang_Cursor_getArgument(*C, i);
+}
+
+void wrap_clang_getCanonicalType(CXType *typ, CXType *canonicalType) { *canonicalType = clang_getCanonicalType(*typ); }
+
+unsigned wrap_clang_isConstQualifiedType(CXType *typ) { return clang_isConstQualifiedType(*typ); }
+
+unsigned wrap_clang_Cursor_isMacroFunctionLike(CXCursor *cur) { return clang_Cursor_isMacroFunctionLike(*cur); }
+
+unsigned wrap_clang_Cursor_isMacroBuiltin(CXCursor *cur) { return clang_Cursor_isMacroBuiltin(*cur); }
+
+unsigned wrap_clang_Cursor_isFunctionInlined(CXCursor *cur) { return clang_Cursor_isFunctionInlined(*cur); }
+
+unsigned wrap_clang_isVolatileQualifiedType(CXType *T) { return clang_isVolatileQualifiedType(*T); }
+
+unsigned wrap_clang_isRestrictQualifiedType(CXType *T) { return clang_isRestrictQualifiedType(*T); }
+
+void wrap_clang_getPointeeType(CXType *pointerTyp, CXType *pointeeTyp) {
+    *pointeeTyp = clang_getPointeeType(*pointerTyp);
+}
+
+void wrap_clang_getNonReferenceType(CXType *typ, CXType *nonRefTyp) { *nonRefTyp = clang_getNonReferenceType(*typ); }
+
+void wrap_clang_getTypeDeclaration(CXType *typ, CXCursor *cur) { *cur = clang_getTypeDeclaration(*typ); }
+
+void wrap_clang_getResultType(CXType *typ, CXType *resultTyp) { *resultTyp = clang_getResultType(*typ); }
+
+int wrap_clang_getNumArgTypes(CXType *typ) { return clang_getNumArgTypes(*typ); }
+
+void wrap_clang_getArgType(CXType *typ, unsigned i, CXType *argTyp) { *argTyp = clang_getArgType(*typ, i); }
+
+unsigned wrap_clang_isFunctionTypeVariadic(CXType *typ) { return clang_isFunctionTypeVariadic(*typ); }
+
+void wrap_clang_getCursorResultType(CXCursor *cur, CXType *typ) { *typ = clang_getCursorResultType(*cur); }
+
+void wrap_clang_getElementType(CXType *Typ, CXType *elemTyp) { *elemTyp = clang_getElementType(*Typ); }
+
+void wrap_clang_getArrayElementType(CXType *arrayTyp, CXType *elemTyp) {
+    *elemTyp = clang_getArrayElementType(*arrayTyp);
+}
+
+long long wrap_clang_getArraySize(CXType *arrayTyp) { return clang_getArraySize(*arrayTyp); }
+
+void wrap_clang_Type_getNamedType(CXType *typ, CXType *namedTyp) { *namedTyp = clang_Type_getNamedType(*typ); }
+
+unsigned wrap_clang_Cursor_isAnonymous(CXCursor *cursor) { return clang_Cursor_isAnonymous(*cursor); }
+
+unsigned wrap_clang_Cursor_isAnonymousRecordDecl(CXCursor *cursor) {
+    return clang_Cursor_isAnonymousRecordDecl(*cursor);
+}
+
+enum CX_CXXAccessSpecifier wrap_clang_getCXXAccessSpecifier(CXCursor *cursor) {
+    return clang_getCXXAccessSpecifier(*cursor);
+}
+
+enum CX_StorageClass wrap_clang_Cursor_getStorageClass(CXCursor *cursor) {
+    return clang_Cursor_getStorageClass(*cursor);
+}
+
+CXString wrap_clang_getCursorUSR(CXCursor *cur) { return clang_getCursorUSR(*cur); }
+
+CXString wrap_clang_getCursorSpelling(CXCursor *cur) { return clang_getCursorSpelling(*cur); }
+
+CXString wrap_clang_getCursorDisplayName(CXCursor *cur) { return clang_getCursorDisplayName(*cur); }
+
+void wrap_clang_getCursorReferenced(CXCursor *cur, CXCursor *referenced) {
+    *referenced = clang_getCursorReferenced(*cur);
+}
+
+unsigned wrap_clang_Cursor_isVariadic(CXCursor *cur) { return clang_Cursor_isVariadic(*cur); }
+
+void wrap_clang_Cursor_getCommentRange(CXCursor *cur, CXSourceRange *range) {
+    *range = clang_Cursor_getCommentRange(*cur);
+}
+
+CXString wrap_clang_Cursor_getRawCommentText(CXCursor *cursor) { return clang_Cursor_getRawCommentText(*cursor); }
+
+CXString wrap_clang_Cursor_getMangling(CXCursor *cur) { return clang_Cursor_getMangling(*cur); }
+
+unsigned wrap_clang_CXXConstructor_isConvertingConstructor(CXCursor *cursor) {
+    return clang_CXXConstructor_isConvertingConstructor(*cursor);
+}
+
+unsigned wrap_clang_CXXConstructor_isCopyConstructor(CXCursor *cursor) {
+    return clang_CXXConstructor_isCopyConstructor(*cursor);
+}
+
+unsigned wrap_clang_CXXConstructor_isDefaultConstructor(CXCursor *cursor) {
+    return clang_CXXConstructor_isDefaultConstructor(*cursor);
+}
+
+unsigned wrap_clang_CXXConstructor_isMoveConstructor(CXCursor *cursor) {
+    return clang_CXXConstructor_isMoveConstructor(*cursor);
+}
+
+unsigned wrap_clang_CXXField_isMutable(CXCursor *cursor) { return clang_CXXField_isMutable(*cursor); }
+
+unsigned wrap_clang_CXXMethod_isDefaulted(CXCursor *cursor) { return clang_CXXMethod_isDefaulted(*cursor); }
+
+unsigned wrap_clang_CXXMethod_isDeleted(CXCursor *cursor) { return clang_CXXMethod_isDeleted(*cursor); }
+
+unsigned wrap_clang_CXXMethod_isPureVirtual(CXCursor *cursor) { return clang_CXXMethod_isPureVirtual(*cursor); }
+
+unsigned wrap_clang_CXXMethod_isStatic(CXCursor *cursor) { return clang_CXXMethod_isStatic(*cursor); }
+
+unsigned wrap_clang_CXXMethod_isVirtual(CXCursor *cursor) { return clang_CXXMethod_isVirtual(*cursor); }
+
+unsigned wrap_clang_CXXMethod_isCopyAssignmentOperator(CXCursor *cursor) {
+    return clang_CXXMethod_isCopyAssignmentOperator(*cursor);
+}
+
+unsigned wrap_clang_CXXMethod_isMoveAssignmentOperator(CXCursor *cursor) {
+    return clang_CXXMethod_isMoveAssignmentOperator(*cursor);
+}
+
+unsigned wrap_clang_CXXMethod_isExplicit(CXCursor *cursor) { return clang_CXXMethod_isExplicit(*cursor); }
+
+unsigned wrap_clang_CXXRecord_isAbstract(CXCursor *cursor) { return clang_CXXRecord_isAbstract(*cursor); }
+
+unsigned wrap_clang_EnumDecl_isScoped(CXCursor *cursor) { return clang_EnumDecl_isScoped(*cursor); }
+
+unsigned wrap_clang_CXXMethod_isConst(CXCursor *cursor) { return clang_CXXMethod_isConst(*cursor); }
+
+CXTokenKind wrap_clang_getTokenKind(CXToken *token) { return clang_getTokenKind(*token); }
+
+CXString wrap_clang_getTokenSpelling(CXTranslationUnit unit, CXToken *token) {
+    return clang_getTokenSpelling(unit, *token);
+}
+
+void wrap_clang_tokenize(CXTranslationUnit unit, CXSourceRange *Range, CXToken **Tokens, unsigned *NumTokens) {
+    clang_tokenize(unit, *Range, Tokens, NumTokens);
+}
+
+unsigned wrap_clang_visitChildren(CXCursor *parent, wrap_CXCursorVisitor visitor, CXClientData client_data) {
+    wrap_data data = {client_data, visitor};
+    return clang_visitChildren(*parent, wrap_visitor, CXClientData(&data));
+}
+
+int wrap_clang_Location_isInSystemHeader(CXSourceLocation *loc) { return clang_Location_isInSystemHeader(*loc); }
+
+void wrap_clang_getSpellingLocation(CXSourceLocation *loc, CXFile *file, unsigned *line, unsigned *column,
+                                    unsigned *offset) {
+    clang_getSpellingLocation(*loc, file, line, column, offset);
+}
+
+void wrap_clang_getRangeStart(CXSourceRange *range, CXSourceLocation *loc) { *loc = clang_getRangeStart(*range); }
+
+void wrap_clang_getRangeEnd(CXSourceRange *range, CXSourceLocation *loc) { *loc = clang_getRangeEnd(*range); }
+
+} // extern "C"

c/clang/_wrap/llgo_check.cpp

@@ -0,0 +1,7 @@
+#include <stdio.h>
+#include <clang-c/Index.h>
+
+int main() {
+    printf("sizeof(clang.Cursor) = %lu\n", sizeof(CXCursor));
+    return 0;
+}

c/clang/_wrap/llgo_check.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"unsafe"
+
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/clang"
+)
+
+const (
+	LLGoCFlags = "-I$(llvm-config --includedir)"
+)
+
+func main() {
+	c.Printf(c.Str("sizeof(clang.Cursor) = %lu\n"), unsafe.Sizeof(clang.Cursor{}))
+}

c/clang/basic.go

@@ -38,13 +38,13 @@ type String struct {
 /**
  * Retrieve the character data associated with the given string.
  */
-// llgo:link C.clang_getCString
+// llgo:link String.CStr C.clang_getCString
 func (String) CStr() *c.Char { return nil }
 
 /**
  * Free the given string.
  */
-// llgo:link C.clang_disposeString
+// llgo:link String.Dispose C.clang_disposeString
 func (String) Dispose() {}
 
 type StringSet struct {
@@ -55,5 +55,5 @@ type StringSet struct {
 /**
  * Free the given string set.
  */
-// llgo:link C.clang_disposeStringSet
+// llgo:link (*StringSet).Dispose C.clang_disposeStringSet
 func (*StringSet) Dispose() {}

c/ffi/_demo/_wrap/wrap.c

@@ -0,0 +1,25 @@
+#include <stdio.h>
+
+struct array
+{
+    int x;
+    int y;
+    int z;
+    int k;
+};
+
+int demo1(struct array a)
+{
+    printf("c.demo1: %d %d %d %d\n",a.x,a.y,a.z,a.k);
+    return a.x+a.y+a.z+a.k;
+}
+
+int demo2( int (*fn)(struct array)) {
+    printf("c.demo2: %p\n",fn);
+    struct array a;
+    a.x = 1;
+    a.y = 2;
+    a.z = 3;
+    a.k = 4;
+    return (*fn)(a);
+}