objdiff/objdiff-core/tests/arch_mips.rs

47 lines
2.3 KiB
Rust

use objdiff_core::{diff, obj};
mod common;
#[test]
#[cfg(feature = "mips")]
fn read_mips() {
let diff_config = diff::DiffObjConfig { mips_register_prefix: true, ..Default::default() };
let obj = obj::read::parse(include_object!("data/mips/main.c.o"), &diff_config).unwrap();
insta::assert_debug_snapshot!(obj);
let symbol_idx = obj.symbols.iter().position(|s| s.name == "ControlEntry").unwrap();
let diff = diff::code::no_diff_code(&obj, symbol_idx, &diff_config).unwrap();
insta::assert_debug_snapshot!(diff.instruction_rows);
let output = common::display_diff(&obj, &diff, symbol_idx, &diff_config);
insta::assert_snapshot!(output);
}
#[test]
#[cfg(feature = "mips")]
fn cross_endian_diff() {
let diff_config = diff::DiffObjConfig::default();
let obj_be = obj::read::parse(include_object!("data/mips/code_be.o"), &diff_config).unwrap();
assert_eq!(obj_be.endianness, object::Endianness::Big);
let obj_le = obj::read::parse(include_object!("data/mips/code_le.o"), &diff_config).unwrap();
assert_eq!(obj_le.endianness, object::Endianness::Little);
let left_symbol_idx = obj_be.symbols.iter().position(|s| s.name == "func_00000000").unwrap();
let right_symbol_idx =
obj_le.symbols.iter().position(|s| s.name == "func_00000000__FPcPc").unwrap();
let (left_diff, right_diff) =
diff::code::diff_code(&obj_be, &obj_le, left_symbol_idx, right_symbol_idx, &diff_config)
.unwrap();
// Although the objects differ in endianness, the instructions should match.
assert_eq!(left_diff.instruction_rows[0].kind, diff::InstructionDiffKind::None);
assert_eq!(right_diff.instruction_rows[0].kind, diff::InstructionDiffKind::None);
assert_eq!(left_diff.instruction_rows[1].kind, diff::InstructionDiffKind::None);
assert_eq!(right_diff.instruction_rows[1].kind, diff::InstructionDiffKind::None);
assert_eq!(left_diff.instruction_rows[2].kind, diff::InstructionDiffKind::None);
assert_eq!(right_diff.instruction_rows[2].kind, diff::InstructionDiffKind::None);
}
#[test]
#[cfg(feature = "mips")]
fn filter_non_matching() {
let diff_config = diff::DiffObjConfig::default();
let obj = obj::read::parse(include_object!("data/mips/vw_main.c.o"), &diff_config).unwrap();
insta::assert_debug_snapshot!(obj.symbols);
}