pub fn transpile_elf(elf: &[u8], output: &mut [u8]) -> Result<usize, Error>Available on crate feature
transpiler only.Expand description
Parse RISC-V ELF, extracting the binary data and converting the instructions to the Embive format. Returns an error if the output binary is larger than the provided buffer.
§Arguments
elf: The RISC-V ELF file.output: The output buffer to write the Embive binary format.
§Returns
Ok(usize): Transpilation was successful, returns the size of the binary.Err(Error): An error occurred during the transpilation.
Examples found in repository?
examples/gdb_tcp.rs (line 123)
108fn main() -> Result<(), Box<dyn std::error::Error>> {
109 // Get the ELF file path from the command line arguments
110 let args: Vec<String> = env::args().collect();
111 if args.len() != 2 {
112 eprintln!("Usage: {} <binary.elf>", args[0]);
113 return Err(std::io::Error::from(std::io::ErrorKind::InvalidInput).into());
114 }
115
116 // Read the ELF file
117 println!("Reading ELF: {}", args[1]);
118 let elf = std::fs::read(&args[1])?;
119
120 // Transpile the ELF file
121 let mut code = [0; 256 * 1024];
122 println!("Transpiling ELF...");
123 transpile_elf(&elf, &mut code)?;
124 println!("ELF transpiled!");
125
126 // Initialize the debugger
127 let mut ram = [0; 64 * 1024];
128 let mut memory = SliceMemory::new(code.as_slice(), &mut ram);
129 let mut debugger: Debugger<'_, _, TcpConnection, _> = Debugger::new(&mut memory, syscall);
130
131 // Wait for GDB client to connect
132 println!("Waiting for GDB client to connect (localhost:9001)...");
133 let sock = TcpListener::bind(SocketAddr::new(Ipv4Addr::new(127, 0, 0, 1).into(), 9001))?;
134 let (stream, addr) = sock.accept()?;
135 let conn = TcpConnection::new(stream);
136 println!("Connected to: {}", addr);
137
138 // Create a GDB server
139 let mut buffer = [0; 4096];
140 let gdb = GdbStub::builder(conn)
141 .with_packet_buffer(&mut buffer)
142 .build()
143 .map_err(|e| std::io::Error::other(e.to_string()))?;
144
145 // Run the GDB server
146 match gdb.run_blocking::<Debugger<'_, _, TcpConnection, _>>(&mut debugger) {
147 Ok(disconnect_reason) => match disconnect_reason {
148 DisconnectReason::Disconnect => {
149 println!("GDB client has disconnected.");
150 }
151 DisconnectReason::TargetExited(code) => {
152 println!("Target exited with code {}!", code)
153 }
154 DisconnectReason::TargetTerminated(sig) => {
155 println!("Target terminated with signal {}!", sig)
156 }
157 DisconnectReason::Kill => println!("GDB sent a kill command!"),
158 },
159 Err(e) => {
160 if e.is_target_error() {
161 println!(
162 "target encountered a fatal error: {}",
163 e.into_target_error().unwrap()
164 )
165 } else if e.is_connection_error() {
166 let (e, kind) = e.into_connection_error().unwrap();
167 println!("connection error: {:?} - {}", kind, e,)
168 } else {
169 println!("gdbstub encountered a fatal error: {}", e)
170 }
171 }
172 }
173
174 // Interpreter state after debugging ended
175 let mut interpreter: Interpreter<'_, SliceMemory> = debugger.into();
176 println!("");
177 println!("Interpreter State:");
178 println!("Registers: {:?}", interpreter.registers.cpu);
179 println!("Program Counter: {:#08x}", interpreter.program_counter);
180 println!("Instruction: {:?}", interpreter.fetch());
181
182 return Ok(());
183}