rialo-build-lib 0.11.2

// Copyright (c) Subzero Labs, Inc.
// SPDX-License-Identifier: Apache-2.0

use std::path::Path;

use anyhow::{Context, Result};

use super::{BuildConfig, BuildResult, CompileFlags, ProgramBuilder, RiscvTarget};
use crate::{
    sanitize_nested_cargo_env,
    toolchain::{GnuRiscvToolchain, RialoRustToolchain, Toolchain},
};

/// Convert a RISC-V ELF file to a PolkaVM blob
///
/// This function uses the polkavm-linker with production settings:
/// - Strip debug symbols
/// - Optimize the blob (O1 to work around a linker bug)
/// - Set minimum stack size to 256KB (0x40000 bytes)
///
/// This is the same configuration used by the simulator's `load_elf_with_linking()` method.
fn link_elf_to_polkavm(elf_bytes: &[u8]) -> Result<Vec<u8>> {
    // Configure linker with production settings
    let mut config = polkavm_linker::Config::default();
    config.set_strip(true);
    config.set_optimize(true);
    config.set_min_stack_size(0x40000); // 256KB stack

    // FIXME(SUB-1596): Use O1 optimization instead of O2 by default due to a bug
    // that generates invalid return addresses in `__fixunsdfdi` (f64→u64 conversion).
    config.set_opt_level(polkavm_linker::OptLevel::O1);

    // Link ELF to PolkaVM blob
    polkavm_linker::program_from_elf(config, elf_bytes)
        .map_err(|e| anyhow::anyhow!("PolkaVM linking failed: {}", e))
}

/// RISC-V program builder
///
/// Supports building both C and Rust programs:
/// - C programs: Uses GNU RISC-V toolchain (gcc, binutils)
/// - Rust programs: Uses Rialo custom Rust toolchain (cargo +rialo)
pub struct RiscvBuilder {
    /// GNU RISC-V toolchain for C programs
    gnu_toolchain: GnuRiscvToolchain,
    /// Rialo Rust toolchain for Rust programs
    rust_toolchain: Option<RialoRustToolchain>,
    /// Target architecture
    target: RiscvTarget,
    /// Custom compile flags for C programs
    compile_flags: Option<CompileFlags>,
}

impl RiscvBuilder {
    /// Create a new RISC-V builder with default toolchain versions
    pub fn new(target: RiscvTarget) -> Result<Self> {
        let gnu_toolchain = GnuRiscvToolchain::new()?;

        // Initialize Rialo Rust toolchain if needed for this target
        let rust_toolchain = if target.requires_rialo_toolchain() {
            Some(RialoRustToolchain::new()?)
        } else {
            None
        };

        Ok(Self {
            gnu_toolchain,
            rust_toolchain,
            target,
            compile_flags: None,
        })
    }

    /// Create a new RISC-V builder with specific toolchain versions
    pub fn with_version(version: &str, target: RiscvTarget) -> Result<Self> {
        let gnu_toolchain = GnuRiscvToolchain::with_version(version)?;

        // Initialize Rialo Rust toolchain if needed for this target
        let rust_toolchain = if target.requires_rialo_toolchain() {
            Some(RialoRustToolchain::with_version(version)?)
        } else {
            None
        };

        Ok(Self {
            gnu_toolchain,
            rust_toolchain,
            target,
            compile_flags: None,
        })
    }

    /// Set custom compile flags
    pub fn with_compile_flags(mut self, flags: CompileFlags) -> Self {
        self.compile_flags = Some(flags);
        self
    }

    /// Check if a directory contains C source files (.c or .S)
    fn has_c_source_files(dir: &Path) -> bool {
        if let Ok(entries) = std::fs::read_dir(dir) {
            for entry in entries.flatten() {
                if let Some(ext) = entry.path().extension().and_then(|e| e.to_str()) {
                    if ext == "c" || ext == "S" {
                        return true;
                    }
                }
            }
        }
        false
    }

    /// Detect the program type based on directory contents
    fn detect_program_type(&self, dir: &Path) -> Result<ProgramType> {
        let cargo_toml = dir.join("Cargo.toml");
        let has_cargo_toml = cargo_toml.exists();

        // Check for C source files in root directory
        let has_c_files = Self::has_c_source_files(dir);

        // Check src directory for C files
        let src_dir = dir.join("src");
        let has_c_in_src = src_dir.exists() && Self::has_c_source_files(&src_dir);

        if has_cargo_toml {
            Ok(ProgramType::Rust)
        } else if has_c_files || has_c_in_src {
            Ok(ProgramType::C)
        } else {
            Err(anyhow::anyhow!(
                "Could not detect program type. Directory must contain either Cargo.toml (Rust) or .c/.S files (C)"
            ))
        }
    }

    /// Build a C program
    fn build_c_program(&self, config: &BuildConfig) -> Result<BuildResult> {
        println!("Building C program for RISC-V...");

        // Get the program name from directory
        let program_name = config
            .program_path
            .file_name()
            .context("Failed to get program directory name")?
            .to_str()
            .context("Failed to convert directory name to string")?;

        // Create output directory
        let output_dir = config.output_dir.join(format!("{program_name}-riscv"));
        std::fs::create_dir_all(&output_dir).with_context(|| {
            format!("Failed to create output directory {}", output_dir.display())
        })?;

        // Collect all C and assembly source files
        let mut source_files = Vec::new();
        let src_dir = config.program_path.join("src");
        let search_dirs = if src_dir.exists() {
            vec![&config.program_path, &src_dir]
        } else {
            vec![&config.program_path]
        };

        for dir in search_dirs {
            if let Ok(entries) = std::fs::read_dir(dir) {
                for entry in entries.flatten() {
                    let path = entry.path();
                    if let Some(ext) = path.extension().and_then(|e| e.to_str()) {
                        if ext == "c" || ext == "S" {
                            source_files.push(path);
                        }
                    }
                }
            }
        }

        if source_files.is_empty() {
            return Err(anyhow::anyhow!(
                "No C source files (.c or .S) found in {}",
                config.program_path.display()
            ));
        }

        println!("Found {} source files", source_files.len());

        // Get toolchain bin path
        let bin_path = self.gnu_toolchain.get_bin_path()?;
        let gcc_path = bin_path.join(format!("{}-gcc", self.gnu_toolchain.get_tool_prefix()));

        // Build the program
        let output_elf = output_dir.join(format!("{program_name}.elf"));

        let mut command = std::process::Command::new(&gcc_path);

        // Apply compile flags (custom or default)
        if let Some(flags) = &self.compile_flags {
            // Use custom flags from config
            if let Some(march) = &flags.march {
                command.args(["-march", march]);
            } else {
                command.args(["-march", self.target.as_march()]);
            }

            if let Some(mabi) = &flags.mabi {
                command.args(["-mabi", mabi]);
            } else {
                command.args(["-mabi", self.target.as_mabi()]);
            }

            // Default flags (can be overridden by additional_flags)
            command
                .arg("-static")
                .arg("-nostdlib")
                .arg("-nostartfiles")
                .arg("-fno-common")
                .arg("-fvisibility=hidden");

            // Optimization
            if let Some(opt) = &flags.optimization {
                command.arg(format!("-{}", opt));
            } else {
                command.arg("-O2");
            }

            // Additional flags
            for flag in &flags.additional_flags {
                command.arg(flag);
            }
        } else {
            // Use default flags
            command
                .args(["-march", self.target.as_march()])
                .args(["-mabi", self.target.as_mabi()])
                .arg("-static")
                .arg("-nostdlib")
                .arg("-nostartfiles")
                .arg("-fno-common")
                .arg("-fvisibility=hidden")
                .arg("-O2");
        }

        command.arg("-o").arg(&output_elf);

        // Add all source files
        for source in &source_files {
            command.arg(source);
        }

        // Check for linker script
        let linker_script = config.program_path.join("link.ld");
        if linker_script.exists() {
            command.arg("-T").arg(&linker_script);
        }

        println!("Compiling with: {:?}", command);

        let status = command.status().with_context(|| {
            format!(
                "Failed to execute gcc at {}.\n\
                \n\
                Is the GNU RISC-V toolchain installed?\n\
                Run: rialo-build toolchain install gnu-riscv\n\
                \n\
                Note: If you're building Rust programs, you don't need the GNU toolchain.\n\
                Use auto-detection instead: rialo-build --program-path /path/to/program",
                gcc_path.display()
            )
        })?;

        if !status.success() {
            return Err(anyhow::anyhow!(
                "Compilation failed. Check the error output above for details.\n\
                \n\
                Common issues:\n\
                  - Missing or incorrect C source code syntax\n\
                  - Incompatible compiler flags for target architecture\n\
                  - Missing linker script (link.ld)\n\
                \n\
                For Rust programs, use auto-detection instead:\n\
                  rialo-build --program-path /path/to/program"
            ));
        }

        println!("✅ C program compiled successfully");

        // Convert ELF to PolkaVM blob (only for Rialo custom target)
        if self.target.requires_rialo_toolchain() {
            println!("Converting ELF to PolkaVM blob...");

            let elf_bytes = std::fs::read(&output_elf)
                .context("Failed to read ELF file for PolkaVM linking")?;

            let polkavm_bytes =
                link_elf_to_polkavm(&elf_bytes).context("Failed to link ELF to PolkaVM blob")?;

            let artifact_name = program_name.replace('-', "_");
            let polkavm_path = output_dir.join(format!("{artifact_name}.polkavm"));
            std::fs::write(&polkavm_path, &polkavm_bytes).with_context(|| {
                format!("Failed to write PolkaVM blob to {}", polkavm_path.display())
            })?;

            println!("✅ PolkaVM blob created: {}", polkavm_path.display());

            // Return the PolkaVM blob as the primary output
            Ok(BuildResult {
                package_name: program_name.to_string(),
                output_dir: output_dir.clone(),
                program_binary: polkavm_path,
                program_keypair: None,
            })
        } else {
            // For non-Rialo targets, return the ELF as the primary output
            Ok(BuildResult {
                package_name: program_name.to_string(),
                output_dir: output_dir.clone(),
                program_binary: output_elf,
                program_keypair: None,
            })
        }
    }

    /// Build a Rust program
    fn build_rust_program(&self, config: &BuildConfig) -> Result<BuildResult> {
        println!("Building Rust program for RISC-V...");

        // Check which toolchain to use
        let use_rialo_toolchain = self.target.requires_rialo_toolchain();

        if use_rialo_toolchain {
            // Ensure Rialo Rust toolchain is available
            let rust_toolchain = self.rust_toolchain.as_ref().ok_or_else(|| {
                anyhow::anyhow!(
                    "Rialo Rust toolchain not initialized for target {}",
                    self.target.as_target_triple()
                )
            })?;

            // When RIALO_BUILD_CARGO_PATH is set (Bazel rialo_program invocation),
            // the rialo cargo binary is used directly — no rustup registration needed.
            // Skip ensure_installed_atomically() so we don't require either a live
            // internet connection or a rialoman-managed toolchain install during CI.
            let using_direct_cargo = std::env::var("RIALO_BUILD_CARGO_PATH")
                .map(|p| !p.is_empty())
                .unwrap_or(false);

            if !using_direct_cargo {
                rust_toolchain.ensure_installed_atomically()?;
            }

            self.build_rust_with_rialo_toolchain(config)
        } else {
            self.build_rust_with_gnu_toolchain(config)
        }
    }

    /// Build a Rust program using the Rialo custom Rust toolchain
    fn build_rust_with_rialo_toolchain(&self, config: &BuildConfig) -> Result<BuildResult> {
        // When RIALO_BUILD_CARGO_PATH is set (by the Bazel rialo_program rule),
        // invoke the rialo cargo binary directly instead of going through the
        // rustup shim (`cargo +rialo`).  Direct invocation:
        //   - Eliminates the rustup dependency from the build hot path.
        //   - Prevents the workspace rust-toolchain.toml from triggering a
        //     competing toolchain sync when multiple Bazel actions run in parallel.
        //   - Allows the Bazel action to declare the cargo binary as an explicit
        //     file input so its content hash enters the remote-cache key.
        //
        // Fallback to `cargo +rialo` preserves backwards compatibility for
        // manual / rialoman-managed invocations where RIALO_BUILD_CARGO_PATH is
        // not set.
        let direct_cargo = std::env::var("RIALO_BUILD_CARGO_PATH")
            .ok()
            .filter(|p| !p.is_empty());
        let use_direct = direct_cargo.is_some();

        let toolchain_label = if use_direct {
            format!("direct ({})", direct_cargo.as_deref().unwrap_or_default())
        } else {
            "cargo +rialo".to_string()
        };
        println!("Using Rialo custom Rust toolchain ({})", toolchain_label);
        println!("Target: {}", self.target.as_target_triple());

        // Get package name from Cargo.toml
        let package_name = get_package_name(&config.program_path)?;

        // Create output directory
        let output_dir = config.output_dir.join(format!("{package_name}-riscv"));
        std::fs::create_dir_all(&output_dir).with_context(|| {
            format!("Failed to create output directory {}", output_dir.display())
        })?;

        // Convert target_dir to absolute path to avoid issues with relative paths
        // when cargo runs from a different working directory
        let absolute_target_dir = if config.target_dir.is_absolute() {
            config.target_dir.clone()
        } else {
            std::env::current_dir()
                .context("Failed to get current directory")?
                .join(&config.target_dir)
        };

        // Build the cargo command.
        let mut command = if let Some(ref cargo_path) = direct_cargo {
            // Direct invocation: the rialo cargo binary already knows its paired
            // rustc (it's in the same bin/ directory), so no `+rialo` channel
            // selector is needed.
            //
            // IMPORTANT: resolve the cargo path to absolute NOW, before
            // command.current_dir() changes the child's working directory.
            // Bazel passes RIALO_BUILD_CARGO_PATH as an exec-root-relative path
            // (e.g. "external/_main~.../bin/cargo").  After current_dir() the
            // kernel resolves that relative path from the new CWD (program_path),
            // where the binary does not exist, causing ENOENT.
            let abs_cargo = if std::path::Path::new(cargo_path).is_absolute() {
                std::path::PathBuf::from(cargo_path)
            } else {
                std::env::current_dir()
                    .context("Failed to get current working directory")?
                    .join(cargo_path)
            };
            std::process::Command::new(abs_cargo)
        } else {
            // Rustup-shim fallback: tell rustup to use the 'rialo' toolchain.
            let mut cmd = std::process::Command::new("cargo");
            cmd.arg("+rialo");
            cmd
        };
        command.current_dir(&config.program_path);

        let target_triple = self.target.as_target_triple();

        command
            .arg("build")
            .arg("--release")
            .arg("--target")
            .arg(target_triple)
            .arg("--target-dir")
            .arg(&absolute_target_dir);

        // Check if the implementation feature is present in the Cargo.toml
        if has_implementation_feature(&config.program_path)? {
            command
                .arg("--features")
                .arg(rialo_venus_dsl::generate::constants::IMPLEMENTATION_FEATURE);
        }

        sanitize_nested_cargo_env(&mut command);

        // Override rust-toolchain.toml so the rialo cargo doesn't invoke
        // rustup to install host-toolchain components (e.g. clippy-preview)
        // which conflicts with concurrent Bazel steps that already have the
        // component installed.
        command.env("RUSTUP_TOOLCHAIN", "rialo");

        let cargo_display = if use_direct {
            direct_cargo.as_deref().unwrap_or("cargo")
        } else {
            "cargo +rialo"
        };
        println!(
            "Building with: {} build --release --target {}",
            cargo_display, target_triple
        );

        let status = command
            .status()
            .context("Failed to execute cargo +rialo build")?;

        if !status.success() {
            return Err(anyhow::anyhow!("Cargo build failed"));
        }

        // Find the built ELF file
        let target_dir = absolute_target_dir.join(target_triple).join("release");

        // Convert package name hyphens to underscores (Rust convention for binaries)
        let binary_name = package_name.replace('-', "_");

        let source_elf = target_dir.join(&binary_name).with_extension("elf");
        if !source_elf.exists() {
            return Err(anyhow::anyhow!(
                "Built ELF not found at {}. Expected cargo to produce a binary.",
                source_elf.display()
            ));
        }

        println!("✅ Rust program compiled successfully with Rialo toolchain");

        // Convert ELF to PolkaVM blob (only for Rialo custom target)
        if self.target.requires_rialo_toolchain() {
            println!("Converting ELF to PolkaVM blob...");

            let elf_bytes = std::fs::read(&source_elf)
                .context("Failed to read ELF file for PolkaVM linking")?;

            let polkavm_bytes =
                link_elf_to_polkavm(&elf_bytes).context("Failed to link ELF to PolkaVM blob")?;

            let polkavm_path = output_dir.join(format!("{binary_name}.polkavm"));
            std::fs::write(&polkavm_path, &polkavm_bytes).with_context(|| {
                format!("Failed to write PolkaVM blob to {}", polkavm_path.display())
            })?;

            println!("✅ PolkaVM blob created: {}", polkavm_path.display());

            // Return the PolkaVM blob as the primary output
            Ok(BuildResult {
                package_name,
                output_dir: output_dir.clone(),
                program_binary: polkavm_path,
                program_keypair: None,
            })
        } else {
            // For non-Rialo targets, copy the ELF to the output directory
            let output_elf = output_dir.join(format!("{binary_name}.elf"));
            std::fs::copy(&source_elf, &output_elf).with_context(|| {
                format!(
                    "Failed to copy {} to {}",
                    source_elf.display(),
                    output_elf.display()
                )
            })?;

            Ok(BuildResult {
                package_name,
                output_dir: output_dir.clone(),
                program_binary: output_elf,
                program_keypair: None,
            })
        }
    }

    /// Build a Rust program using the GNU RISC-V toolchain (fallback)
    fn build_rust_with_gnu_toolchain(&self, config: &BuildConfig) -> Result<BuildResult> {
        println!("Using GNU RISC-V toolchain with cargo");

        // Get package name from Cargo.toml
        let package_name = get_package_name(&config.program_path)?;

        // Create output directory
        let output_dir = config.output_dir.join(format!("{package_name}-riscv"));
        std::fs::create_dir_all(&output_dir).with_context(|| {
            format!("Failed to create output directory {}", output_dir.display())
        })?;

        // Convert target_dir to absolute path to avoid issues with relative paths
        // when cargo runs from a different working directory
        let absolute_target_dir = if config.target_dir.is_absolute() {
            config.target_dir.clone()
        } else {
            std::env::current_dir()
                .context("Failed to get current directory")?
                .join(&config.target_dir)
        };

        // Get toolchain paths for environment variables
        let bin_path = self.gnu_toolchain.get_bin_path()?;
        let tool_prefix = self.gnu_toolchain.get_tool_prefix();

        // Set up environment variables for cross-compilation
        let mut command = std::process::Command::new("cargo");
        command.current_dir(&config.program_path);

        // Set CC and AR for the target
        let target_triple = self.target.as_target_triple();
        let env_prefix = target_triple.replace('-', "_").to_uppercase();

        command
            .env(
                format!("CC_{}", env_prefix),
                bin_path.join(format!("{}-gcc", tool_prefix)),
            )
            .env(
                format!("AR_{}", env_prefix),
                bin_path.join(format!("{}-ar", tool_prefix)),
            )
            .env("CARGO_BUILD_TARGET", target_triple);

        // Build command
        command
            .arg("build")
            .arg("--release")
            .arg("--target")
            .arg(target_triple)
            .arg("--target-dir")
            .arg(&absolute_target_dir);

        // Add -Z build-std for no_std targets
        command.arg("-Z").arg("build-std=core,alloc");

        println!("Building with cargo: {:?}", command);

        let status = command.status().context("Failed to execute cargo build")?;

        if !status.success() {
            return Err(anyhow::anyhow!("Cargo build failed"));
        }

        // Find the built ELF file
        let target_dir = absolute_target_dir.join(target_triple).join("release");

        // Convert package name hyphens to underscores (Rust convention for binaries)
        let binary_name = package_name.replace('-', "_");

        let source_elf = target_dir.join(&binary_name).with_extension("elf");
        if !source_elf.exists() {
            return Err(anyhow::anyhow!(
                "Built ELF not found at {}. Expected cargo to produce a binary.",
                source_elf.display()
            ));
        }

        println!("✅ Rust program compiled successfully with GNU toolchain");

        // Convert ELF to PolkaVM blob (only for Rialo custom target)
        if self.target.requires_rialo_toolchain() {
            println!("Converting ELF to PolkaVM blob...");

            let elf_bytes = std::fs::read(&source_elf)
                .context("Failed to read ELF file for PolkaVM linking")?;

            let polkavm_bytes =
                link_elf_to_polkavm(&elf_bytes).context("Failed to link ELF to PolkaVM blob")?;

            let polkavm_path = output_dir.join(format!("{binary_name}.polkavm"));
            std::fs::write(&polkavm_path, &polkavm_bytes).with_context(|| {
                format!("Failed to write PolkaVM blob to {}", polkavm_path.display())
            })?;

            println!("✅ PolkaVM blob created: {}", polkavm_path.display());

            // Return the PolkaVM blob as the primary output
            Ok(BuildResult {
                package_name,
                output_dir: output_dir.clone(),
                program_binary: polkavm_path,
                program_keypair: None,
            })
        } else {
            // For non-Rialo targets, copy the ELF to the output directory
            let output_elf = output_dir.join(format!("{binary_name}.elf"));
            std::fs::copy(&source_elf, &output_elf).with_context(|| {
                format!(
                    "Failed to copy {} to {}",
                    source_elf.display(),
                    output_elf.display()
                )
            })?;

            Ok(BuildResult {
                package_name,
                output_dir: output_dir.clone(),
                program_binary: output_elf,
                program_keypair: None,
            })
        }
    }
}

impl ProgramBuilder for RiscvBuilder {
    fn validate(&self) -> Result<()> {
        // Only validate GNU toolchain if not using rialo-custom target
        // (rialo-custom requires rialo-rust toolchain, not GNU)
        if !self.target.requires_rialo_toolchain() {
            self.gnu_toolchain.validate()?;
        }

        // Validate Rialo Rust toolchain if needed for this target
        if let Some(ref rust_toolchain) = self.rust_toolchain {
            if rust_toolchain.is_installed()? {
                rust_toolchain.validate()?;
            } else {
                println!("Note: Rialo Rust toolchain not installed. It will be automatically installed when building Rust programs.");
            }
        }

        Ok(())
    }

    fn build(&self, config: &BuildConfig) -> Result<BuildResult> {
        // Validate program path exists (backwards compatibility)
        crate::validate_program_path(&config.program_path)?;

        // Detect program type
        let program_type = self.detect_program_type(&config.program_path)?;

        match program_type {
            ProgramType::C => self.build_c_program(config),
            ProgramType::Rust => self.build_rust_program(config),
        }
    }
}

/// Program type detected from directory contents
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
enum ProgramType {
    /// C program
    C,
    /// Rust program
    Rust,
}

/// Get the package name from Cargo.toml in the specified directory
fn get_package_name(dir: &Path) -> Result<String> {
    let dir = dir
        .canonicalize()
        .with_context(|| format!("Failed to canonicalize directory {}", dir.display()))?;
    let manifest_path = dir.join("Cargo.toml");

    let metadata = cargo_metadata::MetadataCommand::new()
        .manifest_path(&manifest_path)
        .no_deps()
        .exec()
        .with_context(|| format!("Failed to parse Cargo.toml at {}", manifest_path.display()))?;

    Ok(match metadata.workspace_default_packages().first() {
        Some(p) => p.name.clone(),
        None => "<unknown>".into(),
    })
}

/// Check if the implementation feature is present in the Cargo.toml
fn has_implementation_feature(dir: &Path) -> Result<bool> {
    let cargo_toml_path = dir.join("Cargo.toml");
    if !cargo_toml_path.exists() {
        anyhow::bail!("Cargo.toml not found at: {}", cargo_toml_path.display());
    }

    let manifest = cargo_toml::Manifest::from_path(cargo_toml_path)?;
    Ok(manifest
        .features
        .contains_key(rialo_venus_dsl::generate::constants::IMPLEMENTATION_FEATURE))
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_riscv_target_conversions() {
        assert_eq!(
            RiscvTarget::Rv64gc.as_target_triple(),
            "riscv64gc-unknown-none-elf"
        );
        assert_eq!(RiscvTarget::Rv64gc.as_march(), "rv64gc");
        assert_eq!(RiscvTarget::Rv64gc.as_mabi(), "lp64d");

        assert_eq!(
            RiscvTarget::Rv32i.as_target_triple(),
            "riscv32i-unknown-none-elf"
        );
        assert_eq!(RiscvTarget::Rv32i.as_march(), "rv32i");
        assert_eq!(RiscvTarget::Rv32i.as_mabi(), "ilp32");
    }

    #[test]
    fn test_default_target() {
        assert_eq!(RiscvTarget::default(), RiscvTarget::RialoCustom);
    }
}