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-rw-r--r--test/test.rs394
1 files changed, 394 insertions, 0 deletions
diff --git a/test/test.rs b/test/test.rs
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+++ b/test/test.rs
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+#![feature(test)]
+
+extern crate test;
+
+extern crate yaxpeax_arch;
+extern crate yaxpeax_arm;
+
+use yaxpeax_arch::{Decodable, LengthedInstruction};
+use yaxpeax_arm::armv7::{ARMv7, Instruction, ConditionCode, Operands, Opcode, ShiftSpec};
+
+fn test_decode(data: [u8; 4], expected: Instruction) {
+ let mut instr = Instruction::blank();
+ instr.decode_into(&data);
+ assert!(
+ instr == expected,
+ "decode error for {:02x}{:02x}{:02x}{:02x}:\n decoded: {:?}\n expected: {:?}\n",
+ data[0], data[1], data[2], data[3],
+ instr, expected
+ );
+}
+
+fn test_display(data: [u8; 4], expected: &'static str) {
+ let mut instr = Instruction::blank();
+ instr.decode_into(&data);
+ let text = format!("{}", instr);
+ assert!(
+ text == expected,
+ "display error for {:02x}{:02x}{:02x}{:02x}:\n decoded: {:?}\n displayed: {}\n expected: {}\n",
+ data[0], data[1], data[2], data[3],
+ instr,
+ text, expected
+ );
+}
+
+#[test]
+fn test_decode_str_ldr() {
+ test_decode(
+ [0x24, 0xc0, 0x9f, 0xe5],
+ Instruction {
+ condition: ConditionCode::AL,
+ opcode: Opcode::LDR(true, true, false),
+ operands: Operands::RegImm(12, 0x24),
+ s: false
+ }
+ );
+ test_decode(
+ [0x10, 0x00, 0x9f, 0xe5],
+ Instruction {
+ condition: ConditionCode::AL,
+ opcode: Opcode::LDR(true, true, false),
+ operands: Operands::RegImm(0, 0x10),
+ s: false
+ }
+ );
+ test_decode(
+ [0x04, 0x20, 0x2d, 0xe5],
+ Instruction {
+ condition: ConditionCode::AL,
+ opcode: Opcode::STR(false, true, true),
+ operands: Operands::TwoRegImm(13, 2, 4),
+ s: false
+ }
+ );
+ test_decode(
+ [0x04, 0x00, 0x2d, 0xe5],
+ Instruction {
+ condition: ConditionCode::AL,
+ opcode: Opcode::STR(false, true, true),
+ operands: Operands::TwoRegImm(13, 0, 4),
+ s: false
+ }
+ );
+ test_decode(
+ [0x14, 0x30, 0x9f, 0xe5],
+ Instruction {
+ condition: ConditionCode::AL,
+ opcode: Opcode::LDR(true, true, false),
+ operands: Operands::RegImm(3, 0x14),
+ s: false
+ }
+ );
+ test_decode(
+ [0x14, 0x20, 0x9f, 0xe5],
+ Instruction {
+ condition: ConditionCode::AL,
+ opcode: Opcode::LDR(true, true, false),
+ operands: Operands::RegImm(2, 0x14),
+ s: false
+ }
+ );
+}
+
+#[test]
+fn test_decode_pop() {
+ test_decode(
+ [0x04, 0x10, 0x9d, 0xe4],
+ Instruction {
+ condition: ConditionCode::AL,
+ opcode: Opcode::LDR(true, false, false),
+ operands: Operands::TwoRegImm(13, 1, 4),
+ s: false
+ }
+ );
+ test_display(
+ [0x04, 0x10, 0x9d, 0xe4],
+ "pop {r1}"
+ );
+ test_decode(
+ [0xf0, 0x40, 0x2d, 0xe9],
+ Instruction {
+ condition: ConditionCode::AL,
+ opcode: Opcode::STM(false, true, true, false),
+ operands: Operands::RegRegList(13, 16624),
+ s: false
+ }
+ );
+ test_display(
+ [0xf0, 0x40, 0x2d, 0xe9],
+ "push {r4, r5, r6, r7, lr}"
+ );
+ test_decode(
+ [0xf0, 0x80, 0xbd, 0x18],
+ Instruction {
+ condition: ConditionCode::NE,
+ opcode: Opcode::LDM(true, false, true, false),
+ operands: Operands::RegRegList(13, 33008),
+ s: false
+ }
+ );
+ test_display(
+ [0xf0, 0x80, 0xbd, 0x18],
+ "popne {r4, r5, r6, r7, pc}"
+ );
+}
+
+#[test]
+fn test_decode_mov() {
+ test_decode(
+ [0x0d, 0x20, 0xa0, 0xe1],
+ Instruction {
+ condition: ConditionCode::AL,
+ opcode: Opcode::MOV,
+ operands: Operands::TwoOperand(2, 13),
+ s: false
+ }
+ );
+ test_decode(
+ [0x00, 0xb0, 0xa0, 0xe3],
+ Instruction {
+ condition: ConditionCode::AL,
+ opcode: Opcode::MOV,
+ operands: Operands::RegImm(11, 0),
+ s: false
+ }
+ );
+}
+
+#[test]
+fn test_decode_arithmetic() {
+ test_decode(
+ [0x03, 0x30, 0x8f, 0xe0],
+ Instruction {
+ condition: ConditionCode::AL,
+ opcode: Opcode::ADD,
+ operands: Operands::ThreeOperand(3, 15, 3),
+ s: false
+ }
+ );
+ test_decode(
+ [0x03, 0x30, 0x66, 0xe0],
+ Instruction {
+ condition: ConditionCode::AL,
+ opcode: Opcode::RSB,
+ operands: Operands::ThreeOperand(3, 6, 3),
+ s: false
+ }
+ );
+ test_decode(
+ [0x43, 0x31, 0xa0, 0xe1],
+ Instruction {
+ condition: ConditionCode::AL,
+ opcode: Opcode::MOV,
+ operands: Operands::ThreeOperandWithShift(3, 0, 3, ShiftSpec::Immediate(10)),
+ s: false
+ }
+ );
+ test_decode(
+ [0x01, 0x50, 0x43, 0xe2],
+ Instruction {
+ condition: ConditionCode::AL,
+ opcode: Opcode::SUB,
+ operands: Operands::RegImm(3, 20481),
+ s: false
+ }
+ );
+}
+
+#[test]
+fn test_decode_mul() {
+ test_decode(
+ [0x9c, 0x7d, 0x0b, 0x00],
+ Instruction {
+ condition: ConditionCode::EQ,
+ opcode: Opcode::MUL,
+ operands: Operands::MulThreeRegs(11, 12, 13),
+ s: false
+ }
+ );
+ test_decode(
+ [0x90, 0x79, 0x09, 0x00],
+ Instruction {
+ condition: ConditionCode::EQ,
+ opcode: Opcode::MUL,
+ operands: Operands::MulThreeRegs(9, 0, 9),
+ s: false
+ }
+ );
+ test_decode(
+ [0x94, 0x79, 0x09, 0x00],
+ Instruction {
+ condition: ConditionCode::EQ,
+ opcode: Opcode::MUL,
+ operands: Operands::MulThreeRegs(9, 4, 9),
+ s: false
+ }
+ );
+}
+
+static instruction_bytes: [u8; 4 * 60] = [
+ 0x24, 0xc0, 0x9f, 0xe5,
+ 0x00, 0xb0, 0xa0, 0xe3,
+ 0x04, 0x10, 0x9d, 0xe4,
+ 0x0d, 0x20, 0xa0, 0xe1,
+ 0x04, 0x20, 0x2d, 0xe5,
+ 0x04, 0x00, 0x2d, 0xe5,
+ 0x10, 0x00, 0x9f, 0xe5,
+ 0x10, 0x30, 0x9f, 0xe5,
+ 0x04, 0xc0, 0x2d, 0xe5,
+ 0x4b, 0xfe, 0xff, 0xeb,
+ 0xd5, 0xfd, 0xff, 0xeb,
+ 0x90, 0x79, 0x09, 0x00,
+ 0x64, 0xd0, 0x01, 0x00,
+ 0x94, 0x79, 0x09, 0x00,
+ 0x14, 0x30, 0x9f, 0xe5,
+ 0x14, 0x20, 0x9f, 0xe5,
+ 0x03, 0x30, 0x8f, 0xe0,
+ 0x02, 0x10, 0x93, 0xe7,
+ 0x00, 0x00, 0x51, 0xe3,
+ 0x0e, 0xf0, 0xa0, 0x01,
+ 0x01, 0xfe, 0xff, 0xea,
+ 0x58, 0x75, 0x09, 0x00,
+ 0xec, 0x02, 0x00, 0x00,
+ 0xf0, 0x40, 0x2d, 0xe9,
+ 0x54, 0x70, 0x9f, 0xe5,
+ 0x00, 0x30, 0xd7, 0xe5,
+ 0x00, 0x00, 0x53, 0xe3,
+ 0xf0, 0x80, 0xbd, 0x18,
+ 0x48, 0x60, 0x9f, 0xe5,
+ 0x48, 0x30, 0x9f, 0xe5,
+ 0x48, 0x40, 0x9f, 0xe5,
+ 0x03, 0x30, 0x66, 0xe0,
+ 0x43, 0x31, 0xa0, 0xe1,
+ 0x00, 0x20, 0x94, 0xe5,
+ 0x01, 0x50, 0x43, 0xe2,
+ 0x05, 0x00, 0x52, 0xe1,
+ 0x06, 0x00, 0x00, 0x2a,
+ 0x01, 0x30, 0x82, 0xe2,
+ 0x00, 0x30, 0x84, 0xe5,
+ 0x0f, 0xe0, 0xa0, 0xe1,
+ 0x03, 0xf1, 0x96, 0xe7,
+ 0x00, 0x20, 0x94, 0xe5,
+ 0x05, 0x00, 0x52, 0xe1,
+ 0xf8, 0xff, 0xff, 0x3a,
+ 0x01, 0x30, 0xa0, 0xe3,
+ 0x00, 0x30, 0xc7, 0xe5,
+ 0xf0, 0x80, 0xbd, 0xe8,
+ 0x9c, 0x7d, 0x0b, 0x00,
+ 0xa0, 0x33, 0x0b, 0x00,
+ 0xa4, 0x33, 0x0b, 0x00,
+ 0xa0, 0x7d, 0x0b, 0x00,
+ 0x04, 0xe0, 0x2d, 0xe5,
+ 0x04, 0xf0, 0x9d, 0xe4,
+ 0x24, 0x00, 0x9f, 0xe5,
+ 0x00, 0x30, 0x90, 0xe5,
+ 0x00, 0x00, 0x53, 0xe3,
+ 0x04, 0xe0, 0x2d, 0xe5,
+ 0x04, 0xf0, 0x9d, 0x04,
+ 0x14, 0x30, 0x9f, 0xe5,
+ 0x00, 0x00, 0x53, 0xe3
+ ];
+
+
+#[test]
+fn test_decode_span() {
+ let mut i = 0u32;
+ while i < instruction_bytes.len() as u32 {
+ let mut instr = Instruction::blank();
+ instr.decode_into(&instruction_bytes[(i as usize)..]);
+ println!(
+ "Decoded {:02x}{:02x}{:02x}{:02x}: {}", //{:?}\n {}",
+ instruction_bytes[i as usize],
+ instruction_bytes[i as usize + 1],
+ instruction_bytes[i as usize + 2],
+ instruction_bytes[i as usize + 3],
+// instr,
+ instr);
+ i += instr.len();
+ }
+ panic!("done");
+}
+/*
+ * from debian 5.0.10 bash 3.2-4_arm
+ * 0x0001bee4 24c09fe5 ldr ip, sym.__libc_csu_fini
+ * 0x0001bee8 00b0a0e3 mov fp, 0
+ * 0x0001beec 04109de4 pop {r1}
+ * 0x0001bef0 0d20a0e1 mov r2, sp
+ * 0x0001bef4 04202de5 str r2, [sp, -4]!
+ * 0x0001bef8 04002de5 str r0, [sp, -4]!
+ * 0x0001befc 10009fe5 ldr r0, sym.main
+ * 0x0001bf00 10309fe5 ldr r3, sym.__libc_csu_init
+ * 0x0001bf04 04c02de5 str ip, [sp, -4]!
+ * 0x0001bf08 4bfeffeb bl sym.imp.__libc_start_main
+ * 0x0001bf0c d5fdffeb bl sym.imp.abort
+ * 0x0001bf10 90790900 muleq sb, r0, sb
+ * 0x0001bf14 64d00100 andeq sp, r1, r4, rrx
+ * 0x0001bf18 94790900 muleq sb, r4, sb
+ * 0x0001bf1c 14309fe5 ldr r3, [0x0001bf38]
+ * 0x0001bf20 14209fe5 ldr r2, [0x0001bf3c]
+ * 0x0001bf24 03308fe0 add r3, pc, r3
+ * 0x0001bf28 021093e7 ldr r1, [r3, r2]
+ * 0x0001bf2c 000051e3 cmp r1, 0
+ * 0x0001bf30 0ef0a001 moveq pc, lr
+ * 0x0001bf34 01feffea b loc.imp.__gmon_start__
+ * 0x0001bf38 58750900 andeq r7, sb, r8, asr r5
+ * 0x0001bf3c ec020000 andeq r0, r0, ip, ror 5
+ * 0x0001bf40 f0402de9 push {r4, r5, r6, r7, lr}
+ * 0x0001bf44 54709fe5 ldr r7, [0x0001bfa0]
+ * 0x0001bf48 0030d7e5 ldrb r3, [r7]
+ * 0x0001bf4c 000053e3 cmp r3, 0
+ * 0x0001bf50 f080bd18 popne {r4, r5, r6, r7, pc}
+ * 0x0001bf54 48609fe5 ldr r6, [0x0001bfa4]
+ * 0x0001bf58 48309fe5 ldr r3, [0x0001bfa8]
+ * 0x0001bf5c 48409fe5 ldr r4, [0x0001bfac]
+ * 0x0001bf60 033066e0 rsb r3, r6, r3
+ * 0x0001bf64 4331a0e1 asr r3, r3, 2
+ * 0x0001bf68 002094e5 ldr r2, [r4]
+ * 0x0001bf6c 015043e2 sub r5, r3, 1
+ * 0x0001bf70 050052e1 cmp r2, r5
+ * 0x0001bf74 0600002a bhs 0x1bf94
+ * 0x0001bf78 013082e2 add r3, r2, 1
+ * 0x0001bf7c 003084e5 str r3, [r4]
+ * 0x0001bf80 0fe0a0e1 mov lr, pc
+ * 0x0001bf84 03f196e7 ldr pc, [r6, r3, lsl 2]
+ * 0x0001bf88 002094e5 ldr r2, [r4]
+ * 0x0001bf8c 050052e1 cmp r2, r5
+ * 0x0001bf90 f8ffff3a blo 0x1bf78
+ * 0x0001bf94 0130a0e3 mov r3, 1
+ * 0x0001bf98 0030c7e5 strb r3, [r7]
+ * 0x0001bf9c f080bde8 pop {r4, r5, r6, r7, pc}
+ * 0x0001bfa0 9c7d0b00 muleq fp, ip, sp
+ * 0x0001bfa4 a0330b00 andeq r3, fp, r0, lsr 7
+ * 0x0001bfa8 a4330b00 andeq r3, fp, r4, lsr 7
+ * 0x0001bfac a07d0b00 andeq r7, fp, r0, lsr 27
+ * 0x0001bfb0 04e02de5 str lr, [sp, -4]!
+ * 0x0001bfb4 04f09de4 pop {pc}
+ * 0x0001bfb8 24009fe5 ldr r0, [0x0001bfe4]
+ * 0x0001bfbc 003090e5 ldr r3, [r0]
+ * 0x0001bfc0 000053e3 cmp r3, 0
+ * 0x0001bfc4 04e02de5 str lr, [sp, -4]!
+ * 0x0001bfc8 04f09d04 popeq {pc}
+ * 0x0001bfcc 14309fe5 ldr r3, [0x0001bfe8]
+ * 0x0001bfd0 000053e3 cmp r3, 0
+ */
+
+use test::Bencher;
+#[bench]
+pub fn bench_60000_instrs(b: &mut Bencher) {
+ b.iter(|| {
+ for i in (0..1000) {
+ let mut iter = instruction_bytes.iter();
+ let mut result = Instruction::blank();
+ loop {
+ match result.decode_into(&mut iter) {
+ Some(result) => {
+ test::black_box(&result);
+ },
+ None => {
+ break;
+ }
+ }
+ }
+ }
+ });
+}
generated by cgit v1.1 at 2024-11-01 06:23:43 +0000