From 179d5d9cb7e94851ba69bf67f6d2dfbafa6aa6fe Mon Sep 17 00:00:00 2001 From: iximeow Date: Thu, 28 Nov 2019 02:21:34 -0800 Subject: update arm to revised decoder trait --- test/armv8/a64.rs | 169 ++++++++++++++++++++++++++++++++++++++++++++++++------ 1 file changed, 153 insertions(+), 16 deletions(-) (limited to 'test/armv8') diff --git a/test/armv8/a64.rs b/test/armv8/a64.rs index 80bd31c..4886fe1 100644 --- a/test/armv8/a64.rs +++ b/test/armv8/a64.rs @@ -1,9 +1,8 @@ -use yaxpeax_arch::{Decodable, LengthedInstruction}; -use yaxpeax_arm::armv8::a64::{ARMv8, Instruction, Operand, Opcode, SizeCode}; +use yaxpeax_arch::{Arch, Decoder, LengthedInstruction}; +use yaxpeax_arm::armv8::a64::{ARMv8, Instruction, Operand, Opcode, SizeCode, ShiftStyle}; fn test_decode(data: [u8; 4], expected: Instruction) { - let mut instr = Instruction::blank(); - instr.decode_into(data.to_vec()); + let instr = ::Decoder::default().decode(data.to_vec()).unwrap(); assert!( instr == expected, "decode error for {:02x}{:02x}{:02x}{:02x}:\n decoded: {:?}\n expected: {:?}\n", @@ -13,8 +12,7 @@ fn test_decode(data: [u8; 4], expected: Instruction) { } fn test_display(data: [u8; 4], expected: &'static str) { - let mut instr = Instruction::blank(); - instr.decode_into(data.to_vec()); + let instr = ::Decoder::default().decode(data.to_vec()).unwrap(); let text = format!("{}", instr); assert!( text == expected, @@ -41,19 +39,51 @@ fn test_display_misc() { fn test_decode_str_ldr() { test_decode( [0x31, 0x03, 0x40, 0xf9], - Instruction::blank() + Instruction { + opcode: Opcode::LDR, + operands: [ + Operand::Register(SizeCode::X, 17), + Operand::RegOffset(25, 0), + Operand::Nothing, + Operand::Nothing, + ] + } ); test_decode( [0xf5, 0x5b, 0x00, 0xf9], - Instruction::blank() + Instruction { + opcode: Opcode::STR, + operands: [ + Operand::Register(SizeCode::X, 21), + Operand::RegOffset(31, 0xb0), + Operand::Nothing, + Operand::Nothing, + ] + } ); test_decode( [0x60, 0x02, 0x0a, 0x39], - Instruction::blank() + Instruction { + opcode: Opcode::STRB, + operands: [ + Operand::Register(SizeCode::W, 0), + Operand::RegOffset(19, 0x280), + Operand::Nothing, + Operand::Nothing, + ] + } ); test_decode( [0xfd, 0x7b, 0xbe, 0xa9], - Instruction::blank() + Instruction { + opcode: Opcode::STP, + operands: [ + Operand::Register(SizeCode::X, 29), + Operand::Register(SizeCode::X, 30), + Operand::RegPreIndex(31, -0x20), + Operand::Nothing, + ] + } ); } @@ -90,6 +120,44 @@ fn test_decode_misc() { } #[test] +fn test_display_ldr() { + test_display( + [0xff, 0xff, 0x00, 0x1c], + "ldr s31, $+0x1ffc" + ); + test_display( + [0xff, 0xff, 0x00, 0x5c], + "ldr d31, $+0x1ffc" + ); + test_display( + [0xff, 0xff, 0x00, 0x9c], + "ldr q31, $+0x1ffc" + ); + test_display( + [0xff, 0xff, 0x00, 0xdc], + "invalid" + ); + test_display( + [0x88, 0xff, 0x00, 0x18], + "ldr w8, $+0x1ff0" + ); + test_display( + [0x88, 0xff, 0x00, 0x58], + "ldr x8, $+0x1ff0" + ); + test_display( + [0x88, 0xff, 0x00, 0x98], + "ldrsw x8, $+0x1ff0" + ); + /* TODO: + test_display( + [0x88, 0xff, 0x00, 0xd8], + "prfm plil1keep, 0x1ff0" + ); + */ +} + +#[test] fn test_decode_mov() { test_decode( [0x20, 0x00, 0x80, 0x52], @@ -149,7 +217,15 @@ fn test_decode_branch() { fn test_decode_arithmetic() { test_decode( [0x21, 0xfc, 0x41, 0x8b], - Instruction::blank() + Instruction { + opcode: Opcode::ADD, + operands: [ + Operand::Register(SizeCode::X, 1), + Operand::Register(SizeCode::X, 1), + Operand::RegShift(ShiftStyle::LSR, 63, SizeCode::X, 1), + Operand::Nothing + ] + } ); test_decode( [0x21, 0xfc, 0x43, 0x93], @@ -169,7 +245,7 @@ fn test_decode_arithmetic() { opcode: Opcode::SUBS, operands: [ Operand::Register(SizeCode::X, 31), - Operand::Register(SizeCode::X, 1), + Operand::RegisterOrSP(SizeCode::X, 1), Operand::Immediate(0xe), Operand::Nothing, ] @@ -2168,15 +2244,75 @@ fn test_decode_chrome_entrypoint() { ); } -static instruction_bytes: [u8; 4 * 0] = [ +static instruction_bytes: [u8; 4 * 61] = [ + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x20, 0xd4, + 0x00, 0x00, 0x80, 0x12, + 0x00, 0x01, 0x3f, 0xd6, + 0x00, 0x02, 0x00, 0x36, + 0x00, 0x03, 0x00, 0x35, + 0x00, 0x04, 0x00, 0x36, + 0x00, 0x04, 0x40, 0xf9, + 0x00, 0x07, 0x00, 0x34, + 0x00, 0x08, 0x47, 0xf9, + 0x00, 0x0b, 0x80, 0x52, + 0x00, 0x14, 0x42, 0xf9, + 0x00, 0x1b, 0x80, 0x52, + 0x00, 0x20, 0x40, 0xf9, + 0x00, 0x24, 0x47, 0xf9, + 0x00, 0x2b, 0x03, 0x90, + 0x00, 0x34, 0x42, 0xf9, + 0x00, 0x39, 0x04, 0xb0, + 0x00, 0x3b, 0x04, 0xb0, + 0x00, 0x3c, 0x43, 0xf9, + 0x00, 0x44, 0x44, 0xf9, + 0x00, 0x50, 0x14, 0x91, + 0x00, 0x54, 0x44, 0xf9, + 0x00, 0x58, 0x42, 0xf9, + 0x00, 0x5c, 0x44, 0xf9, + 0x00, 0x60, 0x1e, 0x91, + 0x00, 0x70, 0x47, 0xf9, + 0x00, 0x80, 0x1e, 0x91, + 0x00, 0x80, 0x44, 0xf9, + 0x00, 0x84, 0x47, 0xf9, + 0x00, 0xac, 0x40, 0xf9, + 0x00, 0xc0, 0x09, 0x91, + 0x00, 0xc4, 0x45, 0xf9, + 0x00, 0xcc, 0x41, 0xf9, + 0x00, 0xdc, 0x35, 0x91, + 0x00, 0xf4, 0x47, 0xf9, + 0x01, 0x00, 0x00, 0x14, + 0x01, 0x00, 0x40, 0xf9, + 0x01, 0x05, 0x40, 0xf9, + 0x01, 0xfb, 0x4b, 0x95, + 0x02, 0x00, 0x00, 0x14, + 0x02, 0x00, 0x00, 0x90, + 0x02, 0x00, 0x80, 0x92, + 0x02, 0x04, 0xf8, 0x97, + 0x02, 0x2c, 0x80, 0x52, + 0x08, 0x00, 0x40, 0xf9, + 0x08, 0x01, 0x40, 0xf9, + 0x08, 0x05, 0x40, 0xf9, + 0x08, 0x06, 0xf8, 0x97, + 0x08, 0x09, 0x40, 0xf9, + 0x08, 0x1d, 0x40, 0x92, + 0x08, 0x1f, 0x00, 0x13, + 0x08, 0x21, 0x0a, 0x91, + 0x08, 0x41, 0x00, 0x91, + 0x08, 0x41, 0x40, 0xf9, + 0x08, 0x81, 0x0a, 0x91, + 0x08, 0xa1, 0x11, 0x91, + 0x08, 0xc1, 0x1e, 0x91, + 0x08, 0xdd, 0x46, 0xf9, + 0x08, 0xe1, 0x0e, 0x91, + 0x08, 0xf2, 0xff, 0x36, ]; #[test] fn test_decode_span() { let mut i = 0u64; while i < instruction_bytes.len() as u64 { - let mut instr = Instruction::blank(); - instr.decode_into(instruction_bytes[(i as usize)..].iter().map(|x| *x)); + let instr = ::Decoder::default().decode(instruction_bytes[(i as usize)..].iter().cloned()).unwrap(); println!( "Decoded {:02x}{:02x}{:02x}{:02x}: {}", //{:?}\n {}", instruction_bytes[i as usize], @@ -2195,9 +2331,10 @@ pub fn bench_60000_instrs(b: &mut Bencher) { b.iter(|| { for i in (0..1000) { let mut iter = instruction_bytes.iter().map(|x| *x); + let decoder = ::Decoder::default(); let mut result = Instruction::blank(); loop { - match result.decode_into(&mut iter) { + match decoder.decode_into(&mut result, &mut iter) { Some(result) => { test::black_box(&result); }, -- cgit v1.1