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11 changed files with 646 additions and 261 deletions

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Cargo.lock generated
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@ -35,7 +35,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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"proc-macro-crate",
"proc-macro2",
@ -6023,9 +6069,9 @@ checksum = "626bd9fa9734751fc50d6060752170984d7053f5a39061f524cda68023d4db8a"
[[package]]
name = "zvariant"
version = "5.6.0"
version = "5.7.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d91b3680bb339216abd84714172b5138a4edac677e641ef17e1d8cb1b3ca6e6f"
checksum = "999dd3be73c52b1fccd109a4a81e4fcd20fab1d3599c8121b38d04e1419498db"
dependencies = [
"endi",
"enumflags2",
@ -6038,9 +6084,9 @@ dependencies = [
[[package]]
name = "zvariant_derive"
version = "5.6.0"
version = "5.7.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3a8c68501be459a8dbfffbe5d792acdd23b4959940fc87785fb013b32edbc208"
checksum = "6643fd0b26a46d226bd90d3f07c1b5321fe9bb7f04673cb37ac6d6883885b68e"
dependencies = [
"proc-macro-crate",
"proc-macro2",
@ -6051,14 +6097,13 @@ dependencies = [
[[package]]
name = "zvariant_utils"
version = "3.2.0"
version = "3.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e16edfee43e5d7b553b77872d99bc36afdda75c223ca7ad5e3fbecd82ca5fc34"
checksum = "c6949d142f89f6916deca2232cf26a8afacf2b9fdc35ce766105e104478be599"
dependencies = [
"proc-macro2",
"quote",
"serde",
"static_assertions",
"syn",
"winnow",
]

View File

@ -21,16 +21,17 @@ egui_extras = { version = "0.32", features = ["image"] }
egui-notify = "0.20"
egui-winit = "0.32"
egui-wgpu = { version = "0.32", features = ["winit"] }
elf = "0.8"
fxprof-processed-profile = "0.8"
fixed = { version = "1.28", features = ["num-traits"] }
gilrs = { version = "0.11", features = ["serde-serialize"] }
gimli = "0.32"
hex = "0.4"
image = { version = "0.25", default-features = false, features = ["png"] }
itertools = "0.14"
normpath = "1"
num-derive = "0.4"
num-traits = "0.2"
object = "0.37"
oneshot = "0.1"
pollster = "0.4"
rand = "0.9"

View File

@ -18,15 +18,20 @@ use tracing::{error, warn};
use crate::{
audio::Audio,
emulator::cart::Cart,
graphics::TextureSink,
memory::{MemoryRange, MemoryRegion},
};
use cart::Cart;
pub use game_info::GameInfo;
pub use inline_stack_map::InlineStack;
use inline_stack_map::InlineStackMap;
use shrooms_vb_core::{EXPECTED_FRAME_SIZE, Sim, StopReason};
pub use shrooms_vb_core::{SimEvent, VBKey, VBRegister, VBWatchpointType};
mod address_set;
mod cart;
mod game_info;
mod inline_stack_map;
mod shrooms_vb_core;
#[derive(PartialEq, Eq, Hash, Clone, Copy, Debug)]
@ -221,21 +226,19 @@ impl Emulator {
self.sim_state[index].store(SimState::Ready, Ordering::Release);
}
let mut profiling = false;
if let Some(profiler) = self.profilers[sim_id.to_index()].as_ref() {
if let Some(cart) = self.carts[index].as_ref() {
if profiler
if let Some(profiler) = self.profilers[sim_id.to_index()].as_ref()
&& let Some(cart) = self.carts[index].as_ref()
&& profiler
.send(ProfileEvent::Start {
file_path: cart.file_path.clone(),
info: cart.info.clone(),
})
.is_ok()
{
sim.monitor_events(true);
sim.monitor_events(true, cart.info.inline_stack_map().clone());
profiling = true;
}
}
}
if !profiling {
sim.monitor_events(false);
sim.monitor_events(false, InlineStackMap::empty());
}
if self.sim_state[index].load(Ordering::Acquire) == SimState::Ready {
@ -477,13 +480,15 @@ impl Emulator {
continue;
}
if let Some(p) = profiler {
let (event, inline_stack) = sim.take_profiler_updates();
if p.send(ProfileEvent::Update {
cycles,
event: sim.take_sim_event(),
event,
inline_stack,
})
.is_err()
{
sim.monitor_events(false);
sim.monitor_events(false, InlineStackMap::empty());
*profiler = None;
}
}
@ -838,11 +843,12 @@ pub enum DebugEvent {
pub enum ProfileEvent {
Start {
file_path: PathBuf,
info: Arc<GameInfo>,
},
Update {
cycles: u32,
event: Option<SimEvent>,
inline_stack: Option<InlineStack>,
},
}

View File

@ -4,21 +4,24 @@ use std::{
fs::{self, File},
io::{Read, Seek as _, SeekFrom, Write as _},
path::{Path, PathBuf},
sync::Arc,
};
use crate::emulator::SimId;
use crate::emulator::{SimId, game_info::GameInfo};
pub struct Cart {
pub file_path: PathBuf,
pub rom: Vec<u8>,
sram_file: File,
pub sram: Vec<u8>,
pub info: Arc<GameInfo>,
}
impl Cart {
pub fn load(file_path: &Path, sim_id: SimId) -> Result<Self> {
let rom = fs::read(file_path)?;
let rom = try_parse_elf(&rom).unwrap_or(rom);
let (rom, info) =
try_parse_elf(file_path, &rom).unwrap_or_else(|| (rom, GameInfo::empty(file_path)));
let mut sram_file = File::options()
.read(true)
@ -46,6 +49,7 @@ impl Cart {
rom,
sram_file,
sram,
info: Arc::new(info),
})
}
@ -56,18 +60,39 @@ impl Cart {
}
}
fn try_parse_elf(data: &[u8]) -> Option<Vec<u8>> {
let parsed = elf::ElfBytes::<elf::endian::AnyEndian>::minimal_parse(data).ok()?;
fn try_parse_elf(file_path: &Path, data: &[u8]) -> Option<(Vec<u8>, GameInfo)> {
use object::read::elf::FileHeader;
let program = match object::FileKind::parse(data).ok()? {
object::FileKind::Elf32 => {
let header = object::elf::FileHeader32::parse(data).ok()?;
parse_elf_program(header, data)?
}
object::FileKind::Elf64 => {
let header = object::elf::FileHeader64::parse(data).ok()?;
parse_elf_program(header, data)?
}
_ => return None,
};
let info = GameInfo::new(file_path, data).unwrap_or_else(|_| GameInfo::empty(file_path));
Some((program, info))
}
fn parse_elf_program<Elf: object::read::elf::FileHeader<Endian = object::Endianness>>(
header: &Elf,
data: &[u8],
) -> Option<Vec<u8>> {
use object::read::elf::ProgramHeader;
let endian = header.endian().ok()?;
let mut bytes = vec![];
let mut pstart = None;
for phdr in parsed.segments()? {
if phdr.p_filesz == 0 {
for phdr in header.program_headers(endian, data).ok()? {
if phdr.p_filesz(endian).into() == 0 {
continue;
}
let start = pstart.unwrap_or(phdr.p_paddr);
let start = pstart.unwrap_or(phdr.p_paddr(endian).into());
pstart = Some(start);
bytes.resize((phdr.p_paddr - start) as usize, 0);
let data = parsed.segment_data(&phdr).ok()?;
bytes.resize((phdr.p_paddr(endian).into() - start) as usize, 0);
let data = phdr.data(endian, data).ok()?;
bytes.extend_from_slice(data);
}
Some(bytes)

201
src/emulator/game_info.rs Normal file
View File

@ -0,0 +1,201 @@
use std::{borrow::Cow, path::Path, sync::Arc};
use anyhow::{Result, bail};
use fxprof_processed_profile::{LibraryInfo, Symbol, SymbolTable, debugid::DebugId};
use object::{Object, ObjectSection, ObjectSymbol};
use wholesym::samply_symbols::{DebugIdExt, demangle_any};
use crate::emulator::inline_stack_map::{InlineStackMap, InlineStackMapBuilder};
#[derive(Debug)]
pub struct GameInfo {
library_info: LibraryInfo,
inline_stack_map: InlineStackMap,
}
impl GameInfo {
pub fn new(file_path: &Path, input: &[u8]) -> Result<Self> {
let file = object::File::parse(input)?;
let (name, path) = name_and_path(file_path);
let debug_id = file
.build_id()?
.map(|id| DebugId::from_identifier(id, true))
.unwrap_or_default();
let code_id = file.build_id()?.map(hex::encode);
let mut symbols = vec![];
for sym in file.symbols() {
symbols.push(Symbol {
address: sym.address() as u32,
size: Some(sym.size() as u32),
name: demangle_any(sym.name()?),
});
}
let inline_stack_map =
build_inline_stack_map(file).unwrap_or_else(|_| InlineStackMap::empty());
let library_info = LibraryInfo {
name: name.clone(),
debug_name: name,
path: path.clone(),
debug_path: path,
debug_id,
code_id,
arch: None,
symbol_table: Some(Arc::new(SymbolTable::new(symbols))),
};
Ok(Self {
library_info,
inline_stack_map,
})
}
pub fn empty(file_path: &Path) -> Self {
let (name, path) = name_and_path(file_path);
let library_info = LibraryInfo {
name: name.clone(),
debug_name: name,
path: path.clone(),
debug_path: path,
debug_id: DebugId::default(),
code_id: None,
arch: None,
symbol_table: None,
};
let inline_stack_map = InlineStackMap::empty();
Self {
library_info,
inline_stack_map,
}
}
pub fn name(&self) -> &str {
&self.library_info.name
}
pub fn library_info(&self) -> &LibraryInfo {
&self.library_info
}
pub fn inline_stack_map(&self) -> &InlineStackMap {
&self.inline_stack_map
}
}
fn build_inline_stack_map(file: object::File) -> Result<InlineStackMap> {
let endian = if file.is_little_endian() {
gimli::RunTimeEndian::Little
} else {
gimli::RunTimeEndian::Big
};
fn load_section<'a>(file: &'a object::File, id: gimli::SectionId) -> Result<Cow<'a, [u8]>> {
let input = match file.section_by_name(id.name()) {
Some(section) => section.uncompressed_data()?,
None => Cow::Owned(vec![]),
};
Ok(input)
}
let dorf = gimli::DwarfSections::load(|id| load_section(&file, id))?;
let dorf = dorf.borrow(|sec| gimli::EndianSlice::new(sec, endian));
let mut units = dorf.units();
let mut frames = InlineStackMap::builder();
while let Some(header) = units.next()? {
let unit = dorf.unit(header)?;
let mut entree = unit.entries_tree(None)?;
let root = entree.root()?;
let mut ctx = ParseContext {
dorf: &dorf,
unit: &unit,
frames: &mut frames,
};
parse_inline(&mut ctx, root)?;
}
Ok(frames.build())
}
type Reader<'a> = gimli::EndianSlice<'a, gimli::RunTimeEndian>;
struct ParseContext<'a> {
dorf: &'a gimli::Dwarf<Reader<'a>>,
unit: &'a gimli::Unit<Reader<'a>>,
frames: &'a mut InlineStackMapBuilder,
}
impl ParseContext<'_> {
fn name_attr(&self, attr: gimli::AttributeValue<Reader>) -> Result<Option<String>> {
match attr {
gimli::AttributeValue::DebugInfoRef(offset) => {
let mut units = self.dorf.units();
while let Some(header) = units.next()? {
if let Some(offset) = offset.to_unit_offset(&header) {
let unit = self.dorf.unit(header)?;
return self.name_entry(&unit, offset);
}
}
Ok(None)
}
gimli::AttributeValue::UnitRef(offset) => self.name_entry(self.unit, offset),
other => {
bail!("unrecognized attr {other:?}");
}
}
}
fn name_entry(
&self,
unit: &gimli::Unit<Reader>,
offset: gimli::UnitOffset,
) -> Result<Option<String>> {
let abbreviations = self.dorf.abbreviations(&unit.header)?;
let mut entries = unit.header.entries_raw(&abbreviations, Some(offset))?;
let Some(abbrev) = entries.read_abbreviation()? else {
return Ok(None);
};
let mut name = None;
for spec in abbrev.attributes() {
let attr = entries.read_attribute(*spec)?;
if attr.name() == gimli::DW_AT_linkage_name
|| (attr.name() == gimli::DW_AT_name && name.is_none())
{
name = Some(self.dorf.attr_string(unit, attr.value())?)
}
}
Ok(name.map(|n| demangle_any(&String::from_utf8_lossy(&n))))
}
}
fn parse_inline(ctx: &mut ParseContext, node: gimli::EntriesTreeNode<Reader>) -> Result<()> {
if node.entry().tag() == gimli::DW_TAG_inlined_subroutine
&& let Some(attr) = node.entry().attr_value(gimli::DW_AT_abstract_origin)?
&& let Some(name) = ctx.name_attr(attr)?
{
let name = Arc::new(name);
let mut ranges = ctx.dorf.die_ranges(ctx.unit, node.entry())?;
while let Some(range) = ranges.next()? {
let start = range.begin as u32;
let end = range.end as u32;
ctx.frames.add(start, end, name.clone());
}
}
let mut children = node.children();
while let Some(child) = children.next()? {
parse_inline(ctx, child)?;
}
Ok(())
}
fn name_and_path(file_path: &Path) -> (String, String) {
let normalized = normpath::PathExt::normalize(file_path);
let path = normalized
.as_ref()
.map(|n| n.as_path())
.unwrap_or(file_path);
let name = match path.file_stem() {
Some(s) => s.to_string_lossy().into_owned(),
None => "game".to_string(),
};
let path = path.to_string_lossy().into_owned();
(name, path)
}

View File

@ -0,0 +1,87 @@
use std::{
collections::{BTreeMap, HashMap},
sync::Arc,
};
pub type InlineStack = Arc<Vec<Arc<String>>>;
#[derive(Debug, Clone)]
pub struct InlineStackMap {
entries: Vec<(u32, InlineStack)>,
empty: InlineStack,
}
impl InlineStackMap {
pub fn empty() -> Self {
Self {
entries: vec![],
empty: Arc::new(vec![]),
}
}
pub fn builder() -> InlineStackMapBuilder {
InlineStackMapBuilder {
events: BTreeMap::new(),
}
}
pub fn get(&self, address: u32) -> &InlineStack {
match self.entries.binary_search_by_key(&address, |(a, _)| *a) {
Ok(index) => self.entries.get(index),
Err(after) => after.checked_sub(1).and_then(|i| self.entries.get(i)),
}
.map(|(_, s)| s)
.unwrap_or(&self.empty)
}
}
#[derive(Default)]
struct Event {
end: usize,
start: Vec<Arc<String>>,
}
pub struct InlineStackMapBuilder {
events: BTreeMap<u32, Event>,
}
impl InlineStackMapBuilder {
pub fn add(&mut self, start: u32, end: u32, name: Arc<String>) {
self.events.entry(start).or_default().start.push(name);
self.events.entry(end).or_default().end += 1;
}
pub fn build(self) -> InlineStackMap {
let empty = Arc::new(vec![]);
let mut entries = vec![];
let mut stack_indexes = vec![];
let mut stack = vec![];
let mut string_dedup = HashMap::new();
let mut stack_dedup = BTreeMap::new();
stack_dedup.insert(vec![], empty.clone());
for (address, event) in self.events {
for _ in 0..event.end {
stack.pop();
stack_indexes.pop();
}
for call in event.start {
if let Some(index) = string_dedup.get(&call) {
stack.push(call);
stack_indexes.push(*index);
} else {
let index = string_dedup.len();
string_dedup.insert(call.clone(), index);
stack.push(call);
stack_indexes.push(index);
}
}
if let Some(stack) = stack_dedup.get(&stack_indexes) {
entries.push((address, stack.clone()));
} else {
let stack = Arc::new(stack.clone());
stack_dedup.insert(stack_indexes.clone(), stack.clone());
entries.push((address, stack));
}
}
InlineStackMap { entries, empty }
}
}

View File

@ -1,10 +1,12 @@
use std::{borrow::Cow, ffi::c_void, ptr, slice};
use std::{borrow::Cow, ffi::c_void, ptr, slice, sync::Arc};
use anyhow::{Result, anyhow};
use bitflags::bitflags;
use num_derive::{FromPrimitive, ToPrimitive};
use serde::{Deserialize, Serialize};
use crate::emulator::inline_stack_map::{InlineStack, InlineStackMap};
use super::address_set::AddressSet;
#[repr(C)]
@ -206,11 +208,9 @@ extern "C" fn on_execute(sim: *mut VB, address: u32, code: *const u16, length: c
if data.monitor.enabled {
// SAFETY: length is the length of code, in elements
let code = unsafe { slice::from_raw_parts(code, length as usize) };
if data.monitor.detect_event(sim, address, code) {
data.monitor.detect_event(sim, address, code);
// Something interesting will happen after this instruction is run.
// The on_fetch callback will fire when it does.
unsafe { vb_set_fetch_callback(sim, Some(on_fetch)) };
}
// We'll react in the on_fetch callback it does.
}
let mut stopped = data.stop_reason.is_some() || data.monitor.event.is_some();
@ -231,7 +231,7 @@ extern "C" fn on_execute(sim: *mut VB, address: u32, code: *const u16, length: c
extern "C" fn on_fetch(
sim: *mut VB,
_fetch: c_int,
_address: u32,
address: u32,
_value: *mut i32,
_cycles: *mut u32,
) -> c_int {
@ -239,9 +239,13 @@ extern "C" fn on_fetch(
// There is no way for the userdata to be null or otherwise invalid.
let data: &mut VBState = unsafe { &mut *vb_get_user_data(sim).cast() };
data.monitor.event = data.monitor.queued_event.take();
data.monitor.new_inline_stack = data.monitor.detect_new_inline_stack(address);
unsafe { vb_set_exception_callback(sim, Some(on_exception)) };
unsafe { vb_set_fetch_callback(sim, None) };
if data.monitor.event.is_some() || data.monitor.new_inline_stack.is_some() {
1
} else {
0
}
}
#[unsafe(no_mangle)]
@ -249,17 +253,21 @@ extern "C" fn on_exception(sim: *mut VB, cause: *mut u16) -> c_int {
// SAFETY: the *mut VB owns its userdata.
// There is no way for the userdata to be null or otherwise invalid.
let data: &mut VBState = unsafe { &mut *vb_get_user_data(sim).cast() };
data.monitor.event = data.monitor.queued_event.take();
let cause = unsafe { *cause };
let pc = if cause == 0xff70 {
0xffffff60
} else {
(cause & 0xfff0) as u32 | 0xffff0000
};
data.monitor.event = data.monitor.queued_event.take();
data.monitor.new_inline_stack = data.monitor.detect_new_inline_stack(pc);
data.monitor.queued_event = Some(SimEvent::Interrupt(cause, pc));
unsafe { vb_set_exception_callback(sim, None) };
unsafe { vb_set_fetch_callback(sim, Some(on_fetch)) };
if data.monitor.event.is_some() { 1 } else { 0 }
if data.monitor.event.is_some() || data.monitor.new_inline_stack.is_some() {
1
} else {
0
}
}
#[unsafe(no_mangle)]
@ -292,7 +300,7 @@ extern "C" fn on_read(
extern "C" fn on_write(
sim: *mut VB,
address: u32,
_type: VBDataType,
typ_: VBDataType,
value: *mut i32,
_cycles: *mut u32,
_cancel: *mut c_int,
@ -309,6 +317,29 @@ extern "C" fn on_write(
}
}
// If we have profiling enabled, track custom markers
if data.monitor.enabled {
let normalized_hw_address = address & 0x0700003f;
if normalized_hw_address == 0x02000038 && matches!(typ_, VBDataType::S32) {
assert!(data.monitor.queued_event.is_none());
// The game has written the address of a null-terminated string
// (whose length is at most 64 bytes). Read that string.
let str_address = unsafe { *value } as u32;
let mut bytes = [0u8; 64];
let mut len = 0;
for (dst, src_address) in bytes.iter_mut().zip(str_address..str_address + 64) {
let char = unsafe { vb_read(sim, src_address, VBDataType::U8) } as u8;
if char == 0 {
break;
}
*dst = char;
len += 1;
}
let name = String::from_utf8_lossy(&bytes[..len]).into_owned();
data.monitor.queued_event = Some(SimEvent::Marker(Cow::Owned(name)));
}
}
if let Some(start) = data.write_watchpoints.start_of_range_containing(address) {
let watch = if data.read_watchpoints.contains(address) {
VBWatchpointType::Access
@ -339,18 +370,35 @@ struct EventMonitor {
event: Option<SimEvent>,
queued_event: Option<SimEvent>,
just_halted: bool,
inline_stack_map: InlineStackMap,
new_inline_stack: Option<InlineStack>,
last_inline_stack: InlineStack,
}
impl EventMonitor {
fn new() -> Self {
let inline_stack_map = InlineStackMap::empty();
let last_inline_stack = inline_stack_map.get(0).clone();
Self {
enabled: false,
event: None,
queued_event: None,
just_halted: false,
inline_stack_map,
new_inline_stack: None,
last_inline_stack,
}
}
fn detect_new_inline_stack(&mut self, address: u32) -> Option<InlineStack> {
let stack = self.inline_stack_map.get(address);
if Arc::ptr_eq(stack, &self.last_inline_stack) {
return None;
}
self.last_inline_stack = stack.clone();
Some(stack.clone())
}
fn detect_event(&mut self, sim: *mut VB, address: u32, code: &[u16]) -> bool {
self.queued_event = self.do_detect_event(sim, address, code);
self.queued_event.is_some()
@ -440,6 +488,10 @@ impl VBState {
|| !self.read_watchpoints.is_empty()
|| !self.write_watchpoints.is_empty()
}
fn needs_write_callback(&self) -> bool {
self.stdout.is_some() || self.monitor.enabled || !self.write_watchpoints.is_empty()
}
}
pub enum StopReason {
@ -492,20 +544,30 @@ impl Sim {
unsafe { vb_reset(self.sim) };
}
pub fn monitor_events(&mut self, enabled: bool) {
pub fn monitor_events(&mut self, enabled: bool, inline_stack_map: InlineStackMap) {
let state = self.get_state();
state.monitor.enabled = enabled;
state.monitor.event = None;
state.monitor.queued_event = None;
state.monitor.new_inline_stack = None;
state.monitor.last_inline_stack = inline_stack_map.get(0).clone();
state.monitor.inline_stack_map = inline_stack_map;
if enabled {
unsafe { vb_set_execute_callback(self.sim, Some(on_execute)) };
unsafe { vb_set_exception_callback(self.sim, Some(on_exception)) };
unsafe { vb_set_fetch_callback(self.sim, Some(on_fetch)) };
unsafe { vb_set_write_callback(self.sim, Some(on_write)) };
} else {
if !state.needs_execute_callback() {
let needs_execute = state.needs_execute_callback();
let needs_write = state.needs_write_callback();
if !needs_execute {
unsafe { vb_set_execute_callback(self.sim, None) };
}
unsafe { vb_set_exception_callback(self.sim, None) };
unsafe { vb_set_fetch_callback(self.sim, None) };
if !needs_write {
unsafe { vb_set_write_callback(self.sim, None) };
}
}
}
@ -747,9 +809,10 @@ impl Sim {
fn remove_write_watchpoint(&mut self, address: u32, length: usize) {
let state = self.get_state();
state.write_watchpoints.remove(address, length);
let needs_write = state.needs_write_callback();
let needs_execute = state.needs_execute_callback();
if state.write_watchpoints.is_empty() {
if state.stdout.is_none() {
if !needs_write {
unsafe { vb_set_write_callback(self.sim, None) };
}
if !needs_execute {
@ -773,13 +836,16 @@ impl Sim {
data.breakpoints.clear();
data.read_watchpoints.clear();
data.write_watchpoints.clear();
let needs_write = data.stdout.is_some();
let needs_write = data.needs_write_callback();
let needs_execute = data.needs_execute_callback();
unsafe { vb_set_read_callback(self.sim, None) };
if !needs_write {
unsafe { vb_set_write_callback(self.sim, None) };
}
if !needs_execute {
unsafe { vb_set_execute_callback(self.sim, None) };
}
}
pub fn watch_stdout(&mut self, watch: bool) {
let data = self.get_state();
@ -790,7 +856,7 @@ impl Sim {
}
} else {
data.stdout.take();
if data.write_watchpoints.is_empty() {
if !data.needs_write_callback() {
unsafe { vb_set_write_callback(self.sim, None) };
}
}
@ -816,9 +882,11 @@ impl Sim {
reason
}
pub fn take_sim_event(&mut self) -> Option<SimEvent> {
pub fn take_profiler_updates(&mut self) -> (Option<SimEvent>, Option<InlineStack>) {
let data = self.get_state();
data.monitor.event.take()
let event = data.monitor.event.take();
let inline_stack = data.monitor.new_inline_stack.take();
(event, inline_stack)
}
fn get_state(&mut self) -> &mut VBState {

View File

@ -1,5 +1,4 @@
use std::{
path::PathBuf,
sync::{Arc, Mutex},
thread,
};
@ -7,13 +6,14 @@ use std::{
use anyhow::Result;
use tokio::{select, sync::mpsc};
use crate::emulator::{EmulatorClient, EmulatorCommand, ProfileEvent, SimEvent, SimId};
use crate::emulator::{
EmulatorClient, EmulatorCommand, GameInfo, InlineStack, ProfileEvent, SimEvent, SimId,
};
use recording::Recording;
use state::ProgramState;
mod recording;
mod state;
mod symbols;
pub struct Profiler {
sim_id: SimId,
@ -132,12 +132,19 @@ async fn run_profile(
async fn handle_event(event: ProfileEvent, session: &mut ProfilerSession) -> Result<()> {
match event {
ProfileEvent::Start { file_path } => session.start_profiling(file_path).await,
ProfileEvent::Update { cycles, event } => {
ProfileEvent::Start { info } => session.start_profiling(info).await,
ProfileEvent::Update {
cycles,
event,
inline_stack,
} => {
session.track_elapsed_cycles(cycles);
if let Some(event) = event {
session.track_event(event)?;
}
if let Some(stack) = inline_stack {
session.track_inline_stack(stack);
}
}
}
Ok(())
@ -199,8 +206,8 @@ impl ProfilerSession {
}
}
async fn start_profiling(&mut self, file_path: PathBuf) {
let program = ProgramState::new(file_path).await;
async fn start_profiling(&mut self, info: Arc<GameInfo>) {
let program = ProgramState::new(info).await;
let recording = if self.recording.is_some() {
Some(Recording::new(&program))
} else {
@ -235,6 +242,12 @@ impl ProfilerSession {
}
}
fn track_inline_stack(&mut self, inline_stack: InlineStack) {
if let Some(program) = &mut self.program {
program.track_inline_stack(inline_stack);
}
}
fn start_recording(&mut self) {
if let Some(program) = &self.program {
self.recording = Some(Recording::new(program));

View File

@ -24,10 +24,8 @@ impl Recording {
let process =
profile.add_process(state.name(), 1, Timestamp::from_nanos_since_reference(0));
if let Some(symbol_file) = state.symbol_file() {
let lib = profile.add_lib(symbol_file.library_info().clone());
let lib = profile.add_lib(state.library_info().clone());
profile.add_lib_mapping(process, lib, 0x00000000, 0xffffffff, 0);
}
let mut me = Self {
profile,
@ -91,14 +89,21 @@ impl Recording {
thread: ThreadHandle,
frames: &[StackFrame],
) -> Option<StackHandle> {
self.profile.intern_stack_frames(
thread,
frames.iter().map(|f| FrameInfo {
frame: Frame::InstructionPointer(f.address as u64),
let frames = frames
.iter()
.map(|f| {
let frame = match f {
StackFrame::Address(address) => Frame::InstructionPointer(*address as u64),
StackFrame::Label(label) => Frame::Label(self.profile.intern_string(label)),
};
FrameInfo {
frame,
category_pair: CategoryHandle::OTHER.into(),
flags: FrameFlags::empty(),
}),
)
}
})
.collect::<Vec<_>>();
self.profile.intern_stack_frames(thread, frames.into_iter())
}
}

View File

@ -1,54 +1,39 @@
use std::{collections::HashMap, path::PathBuf};
use std::{collections::HashMap, sync::Arc};
use anyhow::{Result, bail};
use fxprof_processed_profile::LibraryInfo;
use crate::profiler::symbols::SymbolFile;
use crate::emulator::{GameInfo, InlineStack};
pub struct ProgramState {
name: String,
symbol_file: Option<SymbolFile>,
info: Arc<GameInfo>,
call_stacks: HashMap<u16, Vec<StackFrame>>,
context_stack: Vec<u16>,
}
pub struct StackFrame {
pub address: u32,
pub enum StackFrame {
Address(u32),
Label(Arc<String>),
}
pub const RESET_CODE: u16 = 0xfff0;
impl ProgramState {
pub async fn new(file_path: PathBuf) -> Self {
let symbol_file = SymbolFile::load(&file_path).await.ok();
let name = symbol_file
.as_ref()
.map(|f| f.name().to_string())
.or_else(|| {
file_path
.file_stem()
.map(|s| s.to_string_lossy().into_owned())
})
.unwrap_or_else(|| "game".to_string());
pub async fn new(info: Arc<GameInfo>) -> Self {
let mut call_stacks = HashMap::new();
call_stacks.insert(
RESET_CODE,
vec![StackFrame {
address: 0xfffffff0,
}],
);
call_stacks.insert(RESET_CODE, vec![StackFrame::Address(0xfffffff0)]);
Self {
name,
symbol_file,
info,
call_stacks,
context_stack: vec![RESET_CODE],
}
}
pub fn name(&self) -> &str {
&self.name
self.info.name()
}
pub fn symbol_file(&self) -> Option<&SymbolFile> {
self.symbol_file.as_ref()
pub fn library_info(&self) -> &LibraryInfo {
self.info.library_info()
}
pub fn current_stack(&self) -> Option<(u16, &[StackFrame])> {
@ -64,7 +49,7 @@ impl ProgramState {
let Some(stack) = self.call_stacks.get_mut(code) else {
bail!("missing stack {code:04x}");
};
stack.push(StackFrame { address });
stack.push(StackFrame::Address(address));
Ok(())
}
@ -100,7 +85,7 @@ impl ProgramState {
self.context_stack.push(code);
if self
.call_stacks
.insert(code, vec![StackFrame { address }])
.insert(code, vec![StackFrame::Address(address)])
.is_some()
{
bail!("{code:04x} fired twice");
@ -120,4 +105,20 @@ impl ProgramState {
}
Ok(())
}
pub fn track_inline_stack(&mut self, inline_stack: InlineStack) {
let Some(code) = self.context_stack.last() else {
return;
};
let Some(call_stack) = self.call_stacks.get_mut(code) else {
return;
};
while call_stack
.pop_if(|f| matches!(f, StackFrame::Label(_)))
.is_some()
{}
for label in inline_stack.iter() {
call_stack.push(StackFrame::Label(label.clone()));
}
}
}

View File

@ -1,67 +0,0 @@
use std::{path::Path, sync::Arc};
use anyhow::Result;
use fxprof_processed_profile::{LibraryInfo, Symbol, SymbolTable};
use wholesym::{SymbolManager, samply_symbols::demangle_any};
pub struct SymbolFile {
library_info: LibraryInfo,
}
impl SymbolFile {
pub async fn load(file_path: &Path) -> Result<Self> {
let normalized = normpath::PathExt::normalize(file_path)?;
let library_info =
SymbolManager::library_info_for_binary_at_path(normalized.as_path(), None).await?;
let symbol_manager = SymbolManager::with_config(Default::default());
let symbol_map = symbol_manager
.load_symbol_map_for_binary_at_path(normalized.as_path(), None)
.await?;
let name = library_info
.name
.or_else(|| {
normalized
.file_name()
.map(|n| n.to_string_lossy().into_owned())
})
.unwrap_or("game".to_string());
let debug_name = library_info.debug_name.unwrap_or_else(|| name.clone());
let path = library_info
.path
.unwrap_or_else(|| normalized.into_os_string().to_string_lossy().into_owned());
let debug_path = library_info.debug_path.unwrap_or_else(|| path.clone());
let debug_id = library_info.debug_id.unwrap_or_default();
let code_id = library_info.code_id.map(|id| id.to_string());
let arch = library_info.arch;
let symbols = symbol_map
.iter_symbols()
.map(|(address, name)| Symbol {
address: address + 0x07000000,
size: None,
name: demangle_any(&name),
})
.collect();
Ok(Self {
library_info: LibraryInfo {
name,
debug_name,
path,
debug_path,
debug_id,
code_id,
arch,
symbol_table: Some(Arc::new(SymbolTable::new(symbols))),
},
})
}
pub fn name(&self) -> &str {
&self.library_info.name
}
pub fn library_info(&self) -> &LibraryInfo {
&self.library_info
}
}