riscv-etrace 0.5.2

Decoder and tracer for RISC-V efficient instruction tracing
Documentation 
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// Copyright (C) 2025 FZI Forschungszentrum Informatik
// SPDX-License-Identifier: Apache-2.0

#[macro_use]
mod gen;

mod chapter12;
mod jumps;
mod section762;
mod traps;

use super::*;

use crate::binary;
use crate::decoder::{payload, unit};
use crate::instruction;
use crate::types::branch;

use instruction::{Kind, COMPRESSED, UNCOMPRESSED};
use item::{Context, Item};

trace_test!(
    full_branch_map,
    test_bin_1(),
    start_packet(0x80000010) => {
        (0x80000010, Context::default()),
        (0x80000010, UNCOMPRESSED)
    }
    payload::Branch {
        branch_map: branch::Map::new(31, 0),
        address: None,
    } => {
        (
            31,
            (0x80000014, COMPRESSED),
            (0x80000016, COMPRESSED),
            (0x80000018, COMPRESSED),
            (0x8000001a, COMPRESSED),
            (0x8000001c, Kind::new_bltu(11, 12, -8))
        )
    }
);

trace_test!(
    full_address,
    test_bin_1(),
    sync::Support {
        ienable: true,
        ioptions: unit::ReferenceIOptions {
            full_address: true,
            ..Default::default()
        },
        ..Default::default()
    } => {}
    sync::Start {
        branch: true,
        ctx: Default::default(),
        address: 0x80000000,
    } => {
        (0x80000000, Context::default()),
        (0x80000000, Kind::new_auipc(13, 0x0))
    }
    payload::Branch {
        branch_map: branch::Map::new(1, 1),
        address: Some(payload::AddressInfo {
            address: 0x80000026,
            notify: false,
            updiscon: false,
            irdepth: None,
        }),
    } => {
        (0x80000004, UNCOMPRESSED),
        (0x80000008, UNCOMPRESSED),
        (0x8000000c, Kind::new_auipc(1, 0x0)),
        (0x80000010, UNCOMPRESSED),
        (0x80000014, COMPRESSED),
        (0x80000016, COMPRESSED),
        (0x80000018, COMPRESSED),
        (0x8000001a, COMPRESSED),
        (0x8000001c, Kind::new_bltu(11, 12, -8)),
        (0x80000020, Kind::fence_i),
        (0x80000024, Kind::new_c_jr(1)),
        (0x80000026, UNCOMPRESSED)
    }
    payload::AddressInfo {
        address: 0x80000034,
        notify: false,
        updiscon: false,
        irdepth: None,
    } => {
        (0x8000002a, UNCOMPRESSED),
        (0x8000002e, COMPRESSED),
        (0x80000030, Kind::wfi),
        (0x80000034, Kind::new_c_j(0, -4))
    }
);

trace_test!(
    resync,
    test_bin_1(),
    start_packet(0x80000000) => {
        (0x80000000, Context::default()),
        (0x80000000, Kind::new_auipc(13, 0x0))
    }
    start_packet(0x80000010) => {
        (0x80000004, UNCOMPRESSED),
        (0x80000008, UNCOMPRESSED),
        (0x8000000c, Kind::new_auipc(1, 0x0)),
        (0x80000010, Context::default()),
        (0x80000010, UNCOMPRESSED)
    }
);

trace_test!(
    ended_ntr,
    test_bin_1(),
    start_packet(0x80000014) => {
        (0x80000014, Context::default()),
        (0x80000014, COMPRESSED)
    }
    sync::Support {
        ienable: true,
        qual_status: sync::QualStatus::EndedNtr,
        ..Default::default()
    } => {}
);

trace_test!(
    trace_notify,
    test_bin_1(),
    start_packet(0x80000000) => {
        (0x80000000, Context::default()),
        (0x80000000, Kind::new_auipc(13, 0x0))
    }
    payload::AddressInfo {
        address: 0x14,
        notify: true,
        updiscon: false,
        irdepth: None,
    } => {
        (0x80000004, UNCOMPRESSED),
        (0x80000008, UNCOMPRESSED),
        (0x8000000c, Kind::new_auipc(1, 0x0)),
        (0x80000010, UNCOMPRESSED),
        (0x80000014, COMPRESSED)
    }
);

fn start_packet(address: u64) -> payload::InstructionTrace {
    sync::Start {
        branch: true,
        ctx: Default::default(),
        address,
    }
    .into()
}

fn test_bin_1() -> [(u64, instruction::Instruction); 17] {
    [
        (0x80000000, Kind::new_auipc(13, 0x0).into()),
        (0x80000004, UNCOMPRESSED),
        (0x80000008, UNCOMPRESSED),
        (0x8000000c, Kind::new_auipc(1, 0x0).into()),
        (0x80000010, UNCOMPRESSED),
        // _copy_code
        (0x80000014, COMPRESSED),
        (0x80000016, COMPRESSED),
        (0x80000018, COMPRESSED),
        (0x8000001a, COMPRESSED),
        (0x8000001c, Kind::new_bltu(11, 12, -8).into()),
        (0x80000020, Kind::fence_i.into()),
        (0x80000024, Kind::new_c_jr(1).into()),
        // _entry
        (0x80000026, UNCOMPRESSED),
        (0x8000002a, UNCOMPRESSED),
        (0x8000002e, COMPRESSED),
        // _die
        (0x80000030, Kind::wfi.into()),
        (0x80000034, Kind::new_c_j(0, -4).into()),
    ]
}