Skip to main content Module syscall_handler Copy item path Source InterruptionHolder Holds parameters required to resume a deferred exec and whether it originated at root depth. LAST_LOG_TIME STATE_NUM_WORDS hook_ed_decompress Checks if a compressed Edwards point can be decompressed. hook_rsa_mul_mod Given the product of some 256-byte numbers and a modulus, this function does a modular
reduction and hints back the values to the vm in order to constrain it. invoke_runtime_handler Dispatches a system function index to its corresponding syscall handler. syscall_bls12381_add_handler syscall_bls12381_add_impl BLS12-381 curve point addition. syscall_bls12381_decompress_handler syscall_bls12381_decompress_impl BLS12-381 point decompression. syscall_bls12381_double_handler syscall_bls12381_double_impl BLS12-381 curve point doubling. syscall_bn254_add_handler syscall_bn254_add_impl BN254 curve point addition. syscall_bn254_double_handler syscall_bn254_double_impl BN254 curve point doubling. syscall_charge_fuel_handler Consumes fuel from the engine and mirrors the consumption in the runtime context. syscall_charge_fuel_impl Adds the consumed fuel to the runtime context and checks against the context fuel limit. syscall_charge_fuel_manually_handler Validates that fuel metering is disabled, applies manual charge/refund, and returns remaining fuel. syscall_charge_fuel_manually_impl Updates context fuel accounting with manual consumption and refund values. syscall_debug_log_handler syscall_debug_log_impl syscall_ed25519_decompress_handler syscall_ed25519_decompress_impl syscall_edwards_add_handler syscall_edwards_add_impl syscall_enter_leave_unconstrained_handler syscall_enter_leave_unconstrained_impl syscall_exec_continue Continues an exec after an interruption, executing the delegated call. syscall_exec_handler Dispatches the exec syscall: validates fuel, captures parameters, and triggers an interruption. syscall_exec_impl Executes a nested runtime with the given parameters and merges the result into ctx. syscall_exit_handler syscall_exit_impl syscall_forward_output_handler Copies [offset, offset+length) from return_data into output; halts on out-of-bounds. syscall_forward_output_impl syscall_fuel_handler Writes the remaining fuel (or u64::MAX if metering is disabled) into result[0]. syscall_fuel_impl syscall_hashing_blake3_handler syscall_hashing_blake3_impl syscall_hashing_keccak256_handler syscall_hashing_keccak256_impl syscall_hashing_keccak256_permute_handler syscall_hashing_keccak256_permute_impl syscall_hashing_sha256_compress_handler syscall_hashing_sha256_compress_impl syscall_hashing_sha256_extend_handler syscall_hashing_sha256_extend_impl syscall_hashing_sha256_handler syscall_hashing_sha256_impl syscall_input_size_handler Writes the input length in bytes into result[0]. syscall_input_size_impl syscall_output_size_handler Writes the length of ctx.execution_result.return_data into result[0]. syscall_output_size_impl syscall_read_input_handler Reads [offset, offset+length) from ctx.input and writes it at target_ptr. syscall_read_input_impl syscall_read_output_handler Reads [offset, offset+length) from ctx.execution_result.return_data and writes it at target_ptr. syscall_read_output_impl syscall_resume_handler Handles the resume syscall. Copies return data, applies fuel, resumes the target, and writes back the exit code. syscall_resume_impl Resumes the runtime identified by call_id using the provided return data and fuel accounting. syscall_secp256k1_add_handler syscall_secp256k1_add_impl Secp256k1 curve point addition. syscall_secp256k1_decompress_handler syscall_secp256k1_decompress_impl Secp256k1 point decompression. syscall_secp256k1_double_handler syscall_secp256k1_double_impl Secp256k1 curve point doubling. syscall_secp256r1_add_handler syscall_secp256r1_add_impl Secp256r1 curve point addition. syscall_secp256r1_decompress_handler syscall_secp256r1_decompress_impl Secp256r1 point decompression. syscall_secp256r1_double_handler syscall_secp256r1_double_impl Secp256r1 curve point doubling. syscall_state_handler Writes ctx.state into result[0]. syscall_state_impl syscall_tower_fp1_bls12381_add_handler syscall_tower_fp1_bls12381_add_impl syscall_tower_fp1_bls12381_mul_handler syscall_tower_fp1_bls12381_mul_impl syscall_tower_fp1_bls12381_sub_handler syscall_tower_fp1_bls12381_sub_impl syscall_tower_fp1_bn254_add_handler syscall_tower_fp1_bn254_add_impl syscall_tower_fp1_bn254_mul_handler syscall_tower_fp1_bn254_mul_impl syscall_tower_fp1_bn254_sub_handler syscall_tower_fp1_bn254_sub_impl syscall_tower_fp2_bls12381_add_handler syscall_tower_fp2_bls12381_add_impl syscall_tower_fp2_bls12381_mul_handler syscall_tower_fp2_bls12381_mul_impl syscall_tower_fp2_bls12381_sub_handler syscall_tower_fp2_bls12381_sub_impl syscall_tower_fp2_bn254_add_handler syscall_tower_fp2_bn254_add_impl syscall_tower_fp2_bn254_mul_handler syscall_tower_fp2_bn254_mul_impl syscall_tower_fp2_bn254_sub_handler syscall_tower_fp2_bn254_sub_impl syscall_uint256_mul_mod_handler syscall_uint256_mul_mod_impl syscall_uint256_x2048_mul_handler syscall_uint256_x2048_mul_impl syscall_write_fd_handler syscall_write_fd_impl syscall_write_output_handler Reads a slice from linear memory and appends it to ctx.execution_result.output. syscall_write_output_impl