Compilation Targets

Seen's shipped LLVM compiler can build native binaries for the platforms below. Use the canonical target names with seen compile --target=<name>.

Target	LLVM Triple	Notes
linux-x86_64	x86_64-unknown-linux-gnu	Default Linux desktop/server target
linux-arm64	aarch64-unknown-linux-gnu	GNU/Linux AArch64 cross target
linux-riscv64	riscv64-unknown-linux-gnu	RV64GC Linux GNU, LP64D ABI
windows-x86_64	x86_64-w64-windows-gnu	Windows cross-build/package target
macos-x86_64	x86_64-apple-darwin	Intel macOS target
macos-arm64	arm64-apple-darwin	Apple Silicon macOS target
ios-arm64	arm64-apple-ios	iOS device target
ios-sim-arm64	arm64-apple-ios-simulator	iOS simulator target
android-arm64	aarch64-linux-android	Android NDK ARM64 target

Aliases accepted by the compiler include riscv64, riscv64-linux-gnu, and riscv64-unknown-linux-gnu for linux-riscv64.

Linux RISC-V

linux-riscv64 is a first-class cross target for 64-bit Linux RISC-V userspace. The baseline is RV64GC with the LP64D ABI. Runtime SIMD reports scalar fallback features on RISC-V until RVV lowering is implemented.

On Arch-compatible hosts, the toolchain used by the QEMU smoke scripts is:

sudo pacman -Syu --needed clang llvm lld file qemu-user qemu-user-static qemu-system-riscv qemu-system-riscv-firmware riscv64-linux-gnu-binutils riscv64-linux-gnu-gcc riscv64-linux-gnu-glibc

Fast user-mode verification:

bash scripts/test_riscv64_qemu.sh --compiler compiler_seen/target/seen --require

Optional full-system verification requires a RISC-V kernel/rootfs and runs:

SEEN_RISCV64_QEMU_KERNEL=/path/to/Image \
SEEN_RISCV64_QEMU_ROOTFS=/path/to/rootfs.qcow2 \
SEEN_RISCV64_QEMU_IDENTITY=/path/to/key \
bash scripts/test_riscv64_system_qemu.sh --compiler compiler_seen/target/seen --require

Cross-Build Artifacts

Packaging and cross-build helpers can request per-module LLVM IR without scraping global temporary directories:

seen compile app.seen app-rv64 --target=linux-riscv64 \
  --emit-module-ir-dir target/riscv64-ir --stop-after-ir

The build and packaging scripts cache IR, transformed objects, runtime objects, and package payload manifests under ignored target/ directories when the full target, toolchain, compiler, runtime, profile, and LTO signatures match.