Build targets task 1: Basic Target Parameter Support for llgo build/run/test commands

.github/workflows/targets.yml

@@ -0,0 +1,180 @@
+
+name: Targets
+
+on:
+  push:
+    branches: ["**"]
+  pull_request:
+    branches: ["**"]
+
+jobs:
+  llgo:
+    continue-on-error: true
+    strategy:
+      matrix:
+        os:
+          - macos-latest
+          - ubuntu-24.04
+        llvm: [19]
+    runs-on: ${{matrix.os}}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install dependencies
+        uses: ./.github/actions/setup-deps
+        with:
+          llvm-version: ${{matrix.llvm}}
+
+      - name: Set up Go for build
+        uses: ./.github/actions/setup-go
+        with:
+          go-version: "1.24.2"
+
+      - name: Install
+        run: |
+          go install ./...
+          echo "LLGO_ROOT=$GITHUB_WORKSPACE" >> $GITHUB_ENV
+
+      - name: Build targets
+        run: |
+          cd _demo/empty
+          for target in \
+            ae-rp2040 \
+            arduino-leonardo \
+            arduino-mega1280 \
+            arduino-mega2560 \
+            arduino-mkr1000 \
+            arduino-mkrwifi1010 \
+            arduino-nano-new \
+            arduino-nano \
+            arduino-nano33 \
+            arduino-zero \
+            arduino \
+            atmega1280 \
+            atmega1284p \
+            atmega2560 \
+            atmega328p \
+            atmega328pb \
+            atmega32u4 \
+            atsamd21e18a \
+            atsamd21g18a \
+            atsamd51g19a \
+            atsamd51j19a \
+            atsamd51j20a \
+            atsamd51p19a \
+            atsamd51p20a \
+            atsame51j19a \
+            atsame54-xpro \
+            atsame54p20a \
+            attiny1616 \
+            attiny85 \
+            badger2040-w \
+            badger2040 \
+            bluepill-clone \
+            bluepill \
+            btt-skr-pico \
+            challenger-rp2040 \
+            circuitplay-express \
+            cortex-m-qemu \
+            cortex-m0 \
+            cortex-m0plus \
+            cortex-m3 \
+            cortex-m33 \
+            cortex-m4 \
+            cortex-m7 \
+            digispark \
+            elecrow-rp2040 \
+            elecrow-rp2350 \
+            esp-c3-32s-kit \
+            esp32-c3-devkit-rust-1 \
+            esp32c3-12f \
+            esp32c3-supermini \
+            esp32c3 \
+            fe310 \
+            feather-m0-express \
+            feather-m0 \
+            feather-m4-can \
+            feather-m4 \
+            feather-rp2040 \
+            feather-stm32f405 \
+            gameboy-advance \
+            gemma-m0 \
+            gnse \
+            gobadge \
+            gopher-badge \
+            gopherbot \
+            grandcentral-m4 \
+            hifive1b \
+            itsybitsy-m0 \
+            itsybitsy-m4 \
+            k210 \
+            kb2040 \
+            lgt92 \
+            lorae5 \
+            m5stamp-c3 \
+            macropad-rp2040 \
+            maixbit \
+            makerfabs-esp32c3spi35 \
+            matrixportal-m4 \
+            metro-m4-airlift \
+            mksnanov3 \
+            nano-rp2040 \
+            nintendoswitch \
+            nucleo-f103rb \
+            nucleo-f722ze \
+            nucleo-l031k6 \
+            nucleo-l432kc \
+            nucleo-l476rg \
+            nucleo-l552ze \
+            nucleo-wl55jc \
+            p1am-100 \
+            pga2350 \
+            pico-plus2 \
+            pico-w \
+            pico \
+            pico2-w \
+            pico2 \
+            pybadge \
+            pygamer \
+            pyportal \
+            qtpy-esp32c3 \
+            qtpy-rp2040 \
+            qtpy \
+            riscv-qemu \
+            riscv32 \
+            riscv64 \
+            rp2040 \
+            rp2350 \
+            rp2350b \
+            simavr \
+            stm32f469disco \
+            stm32f4disco-1 \
+            stm32f4disco \
+            stm32l0x2 \
+            stm32wl5x_cm4 \
+            stm32wle5 \
+            swan \
+            teensy36 \
+            teensy40 \
+            teensy41 \
+            thingplus-rp2040 \
+            thumby \
+            tiny2350 \
+            tkey \
+            trinket-m0 \
+            trinkey-qt2040 \
+            tufty2040 \
+            wasip2 \
+            wasm-unknown \
+            waveshare-rp2040-tiny \
+            waveshare-rp2040-zero \
+            wioterminal \
+            xiao-esp32c3 \
+            xiao-rp2040 \
+            xiao; do
+                ../../llgo.sh build -v -target $target -o hello.out . >/dev/null 2>&1
+                if [ $? -eq 0 ]; then
+                    echo ✅ $target `file hello.out`
+                else
+                    echo ❌ $target
+                fi
+            done

_demo/empty/empty.go

@@ -0,0 +1,4 @@
+package main
+
+func main() {
+}

cmd/internal/build/build.go

@@ -29,7 +29,7 @@ import (
 
 // llgo build
 var Cmd = &base.Command{
-	UsageLine: "llgo build [-o output] [build flags] [packages]",
+	UsageLine: "llgo build [-o output] [-target platform] [build flags] [packages]",
 	Short:     "Compile packages and dependencies",
 }
 
@@ -50,6 +50,7 @@ func runCmd(cmd *base.Command, args []string) {
 	conf.Tags = flags.Tags
 	conf.Verbose = flags.Verbose
 	conf.OutFile = flags.OutputFile
+	conf.Target = flags.Target
 
 	args = cmd.Flag.Args()
 

cmd/internal/flags/flags.go

@@ -13,11 +13,13 @@ func AddOutputFlags(fs *flag.FlagSet) {
 var Verbose bool
 var BuildEnv string
 var Tags string
+var Target string
 
 func AddBuildFlags(fs *flag.FlagSet) {
 	fs.BoolVar(&Verbose, "v", false, "Verbose mode")
 	fs.StringVar(&Tags, "tags", "", "Build tags")
 	fs.StringVar(&BuildEnv, "buildenv", "", "Build environment")
+	fs.StringVar(&Target, "target", "", "Target platform (e.g., rp2040, wasi)")
 }
 
 var Gen bool

cmd/internal/run/run.go

@@ -34,7 +34,7 @@ var (
 
 // llgo run
 var Cmd = &base.Command{
-	UsageLine: "llgo run [build flags] package [arguments...]",
+	UsageLine: "llgo run [-target platform] [build flags] package [arguments...]",
 	Short:     "Compile and run Go program",
 }
 
@@ -54,11 +54,11 @@ func init() {
 }
 
 func runCmd(cmd *base.Command, args []string) {
-	runCmdEx(cmd, args, build.ModeRun)
+	runCmdEx(cmd, args, build.ModeRun) // support target
 }
 
 func runCmpTest(cmd *base.Command, args []string) {
-	runCmdEx(cmd, args, build.ModeCmpTest)
+	runCmdEx(cmd, args, build.ModeCmpTest) // no target support
 }
 
 func runCmdEx(cmd *base.Command, args []string, mode build.Mode) {
@@ -71,6 +71,7 @@ func runCmdEx(cmd *base.Command, args []string, mode build.Mode) {
 	conf.Tags = flags.Tags
 	conf.Verbose = flags.Verbose
 	conf.GenExpect = flags.Gen
+	conf.Target = flags.Target
 
 	args = cmd.Flag.Args()
 	args, runArgs, err := parseRunArgs(args)

cmd/internal/test/test.go

@@ -11,7 +11,7 @@ import (
 
 // llgo test
 var Cmd = &base.Command{
-	UsageLine: "llgo test [build flags] package [arguments...]",
+	UsageLine: "llgo test [-target platform] [build flags] package [arguments...]",
 	Short:     "Compile and run Go test",
 }
 
@@ -29,6 +29,7 @@ func runCmd(cmd *base.Command, args []string) {
 	conf := build.NewDefaultConf(build.ModeTest)
 	conf.Tags = flags.Tags
 	conf.Verbose = flags.Verbose
+	conf.Target = flags.Target
 
 	args = cmd.Flag.Args()
 	_, err := build.Do(args, conf)