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DevTools: Move to Userland/DevTools/

This commit is contained in:
Andreas Kling 2021-01-12 12:18:55 +01:00
parent 13d7c09125
commit 4055b03291
125 changed files with 2 additions and 2 deletions

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set(SOURCES
DisassemblyModel.cpp
main.cpp
Profile.cpp
ProfileModel.cpp
ProfileTimelineWidget.cpp
)
serenity_app(Profiler ICON app-profiler)
target_link_libraries(Profiler LibGUI LibX86 LibCoreDump)

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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "DisassemblyModel.h"
#include "Profile.h"
#include <AK/MappedFile.h>
#include <LibELF/Image.h>
#include <LibGUI/Painter.h>
#include <LibX86/Disassembler.h>
#include <LibX86/ELFSymbolProvider.h>
#include <ctype.h>
#include <stdio.h>
static const Gfx::Bitmap& heat_gradient()
{
static RefPtr<Gfx::Bitmap> bitmap;
if (!bitmap) {
bitmap = Gfx::Bitmap::create(Gfx::BitmapFormat::RGB32, { 101, 1 });
GUI::Painter painter(*bitmap);
painter.fill_rect_with_gradient(Orientation::Horizontal, bitmap->rect(), Color::from_rgb(0xffc080), Color::from_rgb(0xff3000));
}
return *bitmap;
}
static Color color_for_percent(int percent)
{
ASSERT(percent >= 0 && percent <= 100);
return heat_gradient().get_pixel(percent, 0);
}
DisassemblyModel::DisassemblyModel(Profile& profile, ProfileNode& node)
: m_profile(profile)
, m_node(node)
{
OwnPtr<ELF::Image> kernel_elf;
const ELF::Image* elf;
FlatPtr base_address = 0;
if (m_node.address() >= 0xc0000000) {
if (!m_kernel_file) {
auto file_or_error = MappedFile::map("/boot/Kernel");
if (file_or_error.is_error())
return;
m_kernel_file = file_or_error.release_value();
}
kernel_elf = make<ELF::Image>((const u8*)m_kernel_file->data(), m_kernel_file->size());
elf = kernel_elf.ptr();
} else {
auto library_data = profile.libraries().library_containing(node.address());
if (!library_data) {
dbgln("no library data");
return;
}
elf = &library_data->elf;
base_address = library_data->base;
}
ASSERT(elf != nullptr);
auto symbol = elf->find_symbol(node.address() - base_address);
if (!symbol.has_value()) {
dbgln("DisassemblyModel: symbol not found");
return;
}
ASSERT(symbol.has_value());
auto view = symbol.value().raw_data();
X86::ELFSymbolProvider symbol_provider(*elf);
X86::SimpleInstructionStream stream((const u8*)view.characters_without_null_termination(), view.length());
X86::Disassembler disassembler(stream);
size_t offset_into_symbol = 0;
for (;;) {
auto insn = disassembler.next();
if (!insn.has_value())
break;
FlatPtr address_in_profiled_program = symbol.value().value() + offset_into_symbol;
auto disassembly = insn.value().to_string(address_in_profiled_program, &symbol_provider);
StringView instruction_bytes = view.substring_view(offset_into_symbol, insn.value().length());
size_t samples_at_this_instruction = m_node.events_per_address().get(address_in_profiled_program).value_or(0);
float percent = ((float)samples_at_this_instruction / (float)m_node.event_count()) * 100.0f;
m_instructions.append({ insn.value(), disassembly, instruction_bytes, address_in_profiled_program, samples_at_this_instruction, percent });
offset_into_symbol += insn.value().length();
}
}
DisassemblyModel::~DisassemblyModel()
{
}
int DisassemblyModel::row_count(const GUI::ModelIndex&) const
{
return m_instructions.size();
}
String DisassemblyModel::column_name(int column) const
{
switch (column) {
case Column::SampleCount:
return m_profile.show_percentages() ? "% Samples" : "# Samples";
case Column::Address:
return "Address";
case Column::InstructionBytes:
return "Insn Bytes";
case Column::Disassembly:
return "Disassembly";
default:
ASSERT_NOT_REACHED();
return {};
}
}
struct ColorPair {
Color background;
Color foreground;
};
static Optional<ColorPair> color_pair_for(const InstructionData& insn)
{
if (insn.percent == 0)
return {};
Color background = color_for_percent(insn.percent);
Color foreground;
if (insn.percent > 50)
foreground = Color::White;
else
foreground = Color::Black;
return ColorPair { background, foreground };
}
GUI::Variant DisassemblyModel::data(const GUI::ModelIndex& index, GUI::ModelRole role) const
{
auto& insn = m_instructions[index.row()];
if (role == GUI::ModelRole::BackgroundColor) {
auto colors = color_pair_for(insn);
if (!colors.has_value())
return {};
return colors.value().background;
}
if (role == GUI::ModelRole::ForegroundColor) {
auto colors = color_pair_for(insn);
if (!colors.has_value())
return {};
return colors.value().foreground;
}
if (role == GUI::ModelRole::Display) {
if (index.column() == Column::SampleCount) {
if (m_profile.show_percentages())
return ((float)insn.event_count / (float)m_node.event_count()) * 100.0f;
return insn.event_count;
}
if (index.column() == Column::Address)
return String::formatted("{:p}", insn.address);
if (index.column() == Column::InstructionBytes) {
StringBuilder builder;
for (auto ch : insn.bytes) {
builder.appendff("{:02x} ", (u8)ch);
}
return builder.to_string();
}
if (index.column() == Column::Disassembly)
return insn.disassembly;
return {};
}
return {};
}
void DisassemblyModel::update()
{
did_update();
}

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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <LibGUI/Model.h>
#include <LibX86/Instruction.h>
class Profile;
class ProfileNode;
struct InstructionData {
X86::Instruction insn;
String disassembly;
StringView bytes;
FlatPtr address { 0 };
u32 event_count { 0 };
float percent { 0 };
};
class DisassemblyModel final : public GUI::Model {
public:
static NonnullRefPtr<DisassemblyModel> create(Profile& profile, ProfileNode& node)
{
return adopt(*new DisassemblyModel(profile, node));
}
enum Column {
Address,
SampleCount,
InstructionBytes,
Disassembly,
__Count
};
virtual ~DisassemblyModel() override;
virtual int row_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override;
virtual int column_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override { return Column::__Count; }
virtual String column_name(int) const override;
virtual GUI::Variant data(const GUI::ModelIndex&, GUI::ModelRole) const override;
virtual void update() override;
private:
DisassemblyModel(Profile&, ProfileNode&);
Profile& m_profile;
ProfileNode& m_node;
RefPtr<MappedFile> m_kernel_file;
Vector<InstructionData> m_instructions;
};

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/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "Profile.h"
#include "DisassemblyModel.h"
#include "ProfileModel.h"
#include <AK/HashTable.h>
#include <AK/MappedFile.h>
#include <AK/QuickSort.h>
#include <AK/RefPtr.h>
#include <LibCore/File.h>
#include <LibELF/Image.h>
#include <stdio.h>
#include <sys/stat.h>
static void sort_profile_nodes(Vector<NonnullRefPtr<ProfileNode>>& nodes)
{
quick_sort(nodes.begin(), nodes.end(), [](auto& a, auto& b) {
return a->event_count() >= b->event_count();
});
for (auto& child : nodes)
child->sort_children();
}
Profile::Profile(String executable_path, Vector<Event> events, NonnullOwnPtr<LibraryMetadata> library_metadata)
: m_executable_path(move(executable_path))
, m_events(move(events))
, m_library_metadata(move(library_metadata))
{
m_first_timestamp = m_events.first().timestamp;
m_last_timestamp = m_events.last().timestamp;
m_model = ProfileModel::create(*this);
for (auto& event : m_events) {
m_deepest_stack_depth = max((u32)event.frames.size(), m_deepest_stack_depth);
}
rebuild_tree();
}
Profile::~Profile()
{
}
GUI::Model& Profile::model()
{
return *m_model;
}
void Profile::rebuild_tree()
{
u32 filtered_event_count = 0;
Vector<NonnullRefPtr<ProfileNode>> roots;
auto find_or_create_root = [&roots](const String& symbol, u32 address, u32 offset, u64 timestamp) -> ProfileNode& {
for (size_t i = 0; i < roots.size(); ++i) {
auto& root = roots[i];
if (root->symbol() == symbol) {
return root;
}
}
auto new_root = ProfileNode::create(symbol, address, offset, timestamp);
roots.append(new_root);
return new_root;
};
HashTable<FlatPtr> live_allocations;
for (auto& event : m_events) {
if (has_timestamp_filter_range()) {
auto timestamp = event.timestamp;
if (timestamp < m_timestamp_filter_range_start || timestamp > m_timestamp_filter_range_end)
continue;
}
if (event.type == "malloc")
live_allocations.set(event.ptr);
else if (event.type == "free")
live_allocations.remove(event.ptr);
}
for (size_t event_index = 0; event_index < m_events.size(); ++event_index) {
auto& event = m_events.at(event_index);
if (has_timestamp_filter_range()) {
auto timestamp = event.timestamp;
if (timestamp < m_timestamp_filter_range_start || timestamp > m_timestamp_filter_range_end)
continue;
}
if (event.type == "malloc" && !live_allocations.contains(event.ptr))
continue;
if (event.type == "free")
continue;
auto for_each_frame = [&]<typename Callback>(Callback callback) {
if (!m_inverted) {
for (size_t i = 0; i < event.frames.size(); ++i) {
if (callback(event.frames.at(i), i == event.frames.size() - 1) == IterationDecision::Break)
break;
}
} else {
for (ssize_t i = event.frames.size() - 1; i >= 0; --i) {
if (callback(event.frames.at(i), static_cast<size_t>(i) == event.frames.size() - 1) == IterationDecision::Break)
break;
}
}
};
if (!m_show_top_functions) {
ProfileNode* node = nullptr;
for_each_frame([&](const Frame& frame, bool is_innermost_frame) {
auto& symbol = frame.symbol;
auto& address = frame.address;
auto& offset = frame.offset;
if (symbol.is_empty())
return IterationDecision::Break;
if (!node)
node = &find_or_create_root(symbol, address, offset, event.timestamp);
else
node = &node->find_or_create_child(symbol, address, offset, event.timestamp);
node->increment_event_count();
if (is_innermost_frame) {
node->add_event_address(address);
node->increment_self_count();
}
return IterationDecision::Continue;
});
} else {
for (size_t i = 0; i < event.frames.size(); ++i) {
ProfileNode* node = nullptr;
ProfileNode* root = nullptr;
for (size_t j = i; j < event.frames.size(); ++j) {
auto& frame = event.frames.at(j);
auto& symbol = frame.symbol;
auto& address = frame.address;
auto& offset = frame.offset;
if (symbol.is_empty())
break;
if (!node) {
node = &find_or_create_root(symbol, address, offset, event.timestamp);
root = node;
root->will_track_seen_events(m_events.size());
} else {
node = &node->find_or_create_child(symbol, address, offset, event.timestamp);
}
if (!root->has_seen_event(event_index)) {
root->did_see_event(event_index);
root->increment_event_count();
} else if (node != root) {
node->increment_event_count();
}
if (j == event.frames.size() - 1) {
node->add_event_address(address);
node->increment_self_count();
}
}
}
}
++filtered_event_count;
}
sort_profile_nodes(roots);
m_filtered_event_count = filtered_event_count;
m_roots = move(roots);
m_model->update();
}
Result<NonnullOwnPtr<Profile>, String> Profile::load_from_perfcore_file(const StringView& path)
{
auto file = Core::File::construct(path);
if (!file->open(Core::IODevice::ReadOnly))
return String::formatted("Unable to open {}, error: {}", path, file->error_string());
auto json = JsonValue::from_string(file->read_all());
if (!json.has_value() || !json.value().is_object())
return String { "Invalid perfcore format (not a JSON object)" };
auto& object = json.value().as_object();
auto executable_path = object.get("executable").to_string();
auto pid = object.get("pid");
if (!pid.is_u32())
return String { "Invalid perfcore format (no process ID)" };
auto file_or_error = MappedFile::map("/boot/Kernel");
OwnPtr<ELF::Image> kernel_elf;
if (!file_or_error.is_error())
kernel_elf = make<ELF::Image>(file_or_error.value()->bytes());
auto events_value = object.get("events");
if (!events_value.is_array())
return String { "Malformed profile (events is not an array)" };
auto regions_value = object.get("regions");
if (!regions_value.is_array() || regions_value.as_array().is_empty())
return String { "Malformed profile (regions is not an array, or it is empty)" };
auto& perf_events = events_value.as_array();
if (perf_events.is_empty())
return String { "No events captured (targeted process was never on CPU)" };
auto library_metadata = make<LibraryMetadata>(regions_value.as_array());
Vector<Event> events;
for (auto& perf_event_value : perf_events.values()) {
auto& perf_event = perf_event_value.as_object();
Event event;
event.timestamp = perf_event.get("timestamp").to_number<u64>();
event.type = perf_event.get("type").to_string();
if (event.type == "malloc") {
event.ptr = perf_event.get("ptr").to_number<FlatPtr>();
event.size = perf_event.get("size").to_number<size_t>();
} else if (event.type == "free") {
event.ptr = perf_event.get("ptr").to_number<FlatPtr>();
}
auto stack_array = perf_event.get("stack").as_array();
for (ssize_t i = stack_array.values().size() - 1; i >= 0; --i) {
auto& frame = stack_array.at(i);
auto ptr = frame.to_number<u32>();
u32 offset = 0;
String symbol;
if (ptr >= 0xc0000000) {
if (kernel_elf) {
symbol = kernel_elf->symbolicate(ptr, &offset);
} else {
symbol = "??";
}
} else {
symbol = library_metadata->symbolicate(ptr, offset);
}
event.frames.append({ symbol, ptr, offset });
}
if (event.frames.size() < 2)
continue;
FlatPtr innermost_frame_address = event.frames.at(1).address;
event.in_kernel = innermost_frame_address >= 0xc0000000;
events.append(move(event));
}
return adopt_own(*new Profile(executable_path, move(events), move(library_metadata)));
}
void ProfileNode::sort_children()
{
sort_profile_nodes(m_children);
}
void Profile::set_timestamp_filter_range(u64 start, u64 end)
{
if (m_has_timestamp_filter_range && m_timestamp_filter_range_start == start && m_timestamp_filter_range_end == end)
return;
m_has_timestamp_filter_range = true;
m_timestamp_filter_range_start = min(start, end);
m_timestamp_filter_range_end = max(start, end);
rebuild_tree();
}
void Profile::clear_timestamp_filter_range()
{
if (!m_has_timestamp_filter_range)
return;
m_has_timestamp_filter_range = false;
rebuild_tree();
}
void Profile::set_inverted(bool inverted)
{
if (m_inverted == inverted)
return;
m_inverted = inverted;
rebuild_tree();
}
void Profile::set_show_top_functions(bool show)
{
if (m_show_top_functions == show)
return;
m_show_top_functions = show;
rebuild_tree();
}
void Profile::set_show_percentages(bool show_percentages)
{
if (m_show_percentages == show_percentages)
return;
m_show_percentages = show_percentages;
}
void Profile::set_disassembly_index(const GUI::ModelIndex& index)
{
if (m_disassembly_index == index)
return;
m_disassembly_index = index;
auto* node = static_cast<ProfileNode*>(index.internal_data());
m_disassembly_model = DisassemblyModel::create(*this, *node);
}
GUI::Model* Profile::disassembly_model()
{
return m_disassembly_model;
}
Profile::LibraryMetadata::LibraryMetadata(JsonArray regions)
: m_regions(move(regions))
{
for (auto& region_value : m_regions.values()) {
auto& region = region_value.as_object();
auto base = region.get("base").as_u32();
auto size = region.get("size").as_u32();
auto name = region.get("name").as_string();
String path;
if (name.contains("Loader.so"))
path = "Loader.so";
else if (!name.contains(":"))
continue;
else
path = name.substring(0, name.view().find_first_of(":").value());
if (name.contains(".so"))
path = String::formatted("/usr/lib/{}", path);
auto file_or_error = MappedFile::map(path);
if (file_or_error.is_error()) {
m_libraries.set(name, {});
continue;
}
auto elf = ELF::Image(file_or_error.value()->bytes());
if (!elf.is_valid())
continue;
auto library = make<Library>(base, size, name, file_or_error.release_value(), move(elf));
m_libraries.set(name, move(library));
}
}
const Profile::LibraryMetadata::Library* Profile::LibraryMetadata::library_containing(FlatPtr ptr) const
{
for (auto& it : m_libraries) {
if (!it.value)
continue;
auto& library = *it.value;
if (ptr >= library.base && ptr < (library.base + library.size))
return &library;
}
return nullptr;
}
String Profile::LibraryMetadata::symbolicate(FlatPtr ptr, u32& offset) const
{
if (auto* library = library_containing(ptr))
return String::formatted("[{}] {}", library->name, library->elf.symbolicate(ptr - library->base, &offset));
return "??";
}

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/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/Bitmap.h>
#include <AK/JsonArray.h>
#include <AK/JsonObject.h>
#include <AK/JsonValue.h>
#include <AK/MappedFile.h>
#include <AK/NonnullRefPtrVector.h>
#include <AK/OwnPtr.h>
#include <AK/Result.h>
#include <LibELF/Image.h>
#include <LibGUI/Forward.h>
#include <LibGUI/ModelIndex.h>
class ProfileModel;
class DisassemblyModel;
class ProfileNode : public RefCounted<ProfileNode> {
public:
static NonnullRefPtr<ProfileNode> create(const String& symbol, u32 address, u32 offset, u64 timestamp)
{
return adopt(*new ProfileNode(symbol, address, offset, timestamp));
}
// These functions are only relevant for root nodes
void will_track_seen_events(size_t profile_event_count)
{
if (m_seen_events.size() != profile_event_count)
m_seen_events = Bitmap::create(profile_event_count, false);
}
bool has_seen_event(size_t event_index) const { return m_seen_events.get(event_index); }
void did_see_event(size_t event_index) { m_seen_events.set(event_index, true); }
const String& symbol() const { return m_symbol; }
u32 address() const { return m_address; }
u32 offset() const { return m_offset; }
u64 timestamp() const { return m_timestamp; }
u32 event_count() const { return m_event_count; }
u32 self_count() const { return m_self_count; }
int child_count() const { return m_children.size(); }
const Vector<NonnullRefPtr<ProfileNode>>& children() const { return m_children; }
void add_child(ProfileNode& child)
{
if (child.m_parent == this)
return;
ASSERT(!child.m_parent);
child.m_parent = this;
m_children.append(child);
}
ProfileNode& find_or_create_child(const String& symbol, u32 address, u32 offset, u64 timestamp)
{
for (size_t i = 0; i < m_children.size(); ++i) {
auto& child = m_children[i];
if (child->symbol() == symbol) {
return child;
}
}
auto new_child = ProfileNode::create(symbol, address, offset, timestamp);
add_child(new_child);
return new_child;
};
ProfileNode* parent() { return m_parent; }
const ProfileNode* parent() const { return m_parent; }
void increment_event_count() { ++m_event_count; }
void increment_self_count() { ++m_self_count; }
void sort_children();
const HashMap<FlatPtr, size_t>& events_per_address() const { return m_events_per_address; }
void add_event_address(FlatPtr address)
{
auto it = m_events_per_address.find(address);
if (it == m_events_per_address.end())
m_events_per_address.set(address, 1);
else
m_events_per_address.set(address, it->value + 1);
}
private:
explicit ProfileNode(const String& symbol, u32 address, u32 offset, u64 timestamp)
: m_symbol(symbol)
, m_address(address)
, m_offset(offset)
, m_timestamp(timestamp)
{
}
ProfileNode* m_parent { nullptr };
String m_symbol;
u32 m_address { 0 };
u32 m_offset { 0 };
u32 m_event_count { 0 };
u32 m_self_count { 0 };
u64 m_timestamp { 0 };
Vector<NonnullRefPtr<ProfileNode>> m_children;
HashMap<FlatPtr, size_t> m_events_per_address;
Bitmap m_seen_events;
};
class Profile {
public:
static Result<NonnullOwnPtr<Profile>, String> load_from_perfcore_file(const StringView& path);
~Profile();
GUI::Model& model();
GUI::Model* disassembly_model();
void set_disassembly_index(const GUI::ModelIndex&);
const Vector<NonnullRefPtr<ProfileNode>>& roots() const { return m_roots; }
struct Frame {
String symbol;
u32 address { 0 };
u32 offset { 0 };
};
struct Event {
u64 timestamp { 0 };
String type;
FlatPtr ptr { 0 };
size_t size { 0 };
bool in_kernel { false };
Vector<Frame> frames;
};
u32 filtered_event_count() const { return m_filtered_event_count; }
const Vector<Event>& events() const { return m_events; }
u64 length_in_ms() const { return m_last_timestamp - m_first_timestamp; }
u64 first_timestamp() const { return m_first_timestamp; }
u64 last_timestamp() const { return m_last_timestamp; }
u32 deepest_stack_depth() const { return m_deepest_stack_depth; }
void set_timestamp_filter_range(u64 start, u64 end);
void clear_timestamp_filter_range();
bool has_timestamp_filter_range() const { return m_has_timestamp_filter_range; }
bool is_inverted() const { return m_inverted; }
void set_inverted(bool);
void set_show_top_functions(bool);
bool show_percentages() const { return m_show_percentages; }
void set_show_percentages(bool);
const String& executable_path() const { return m_executable_path; }
class LibraryMetadata {
public:
LibraryMetadata(JsonArray regions);
String symbolicate(FlatPtr ptr, u32& offset) const;
struct Library {
FlatPtr base;
size_t size;
String name;
NonnullRefPtr<MappedFile> file;
ELF::Image elf;
};
const Library* library_containing(FlatPtr) const;
private:
mutable HashMap<String, OwnPtr<Library>> m_libraries;
JsonArray m_regions;
};
const LibraryMetadata& libraries() const { return *m_library_metadata; }
private:
Profile(String executable_path, Vector<Event>, NonnullOwnPtr<LibraryMetadata>);
void rebuild_tree();
String m_executable_path;
RefPtr<ProfileModel> m_model;
RefPtr<DisassemblyModel> m_disassembly_model;
GUI::ModelIndex m_disassembly_index;
Vector<NonnullRefPtr<ProfileNode>> m_roots;
u32 m_filtered_event_count { 0 };
u64 m_first_timestamp { 0 };
u64 m_last_timestamp { 0 };
Vector<Event> m_events;
NonnullOwnPtr<LibraryMetadata> m_library_metadata;
bool m_has_timestamp_filter_range { false };
u64 m_timestamp_filter_range_start { 0 };
u64 m_timestamp_filter_range_end { 0 };
u32 m_deepest_stack_depth { 0 };
bool m_inverted { false };
bool m_show_top_functions { false };
bool m_show_percentages { false };
};

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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "ProfileModel.h"
#include "Profile.h"
#include <AK/StringBuilder.h>
#include <ctype.h>
#include <stdio.h>
ProfileModel::ProfileModel(Profile& profile)
: m_profile(profile)
{
m_user_frame_icon.set_bitmap_for_size(16, Gfx::Bitmap::load_from_file("/res/icons/16x16/inspector-object.png"));
m_kernel_frame_icon.set_bitmap_for_size(16, Gfx::Bitmap::load_from_file("/res/icons/16x16/inspector-object-red.png"));
}
ProfileModel::~ProfileModel()
{
}
GUI::ModelIndex ProfileModel::index(int row, int column, const GUI::ModelIndex& parent) const
{
if (!parent.is_valid()) {
if (m_profile.roots().is_empty())
return {};
return create_index(row, column, m_profile.roots().at(row).ptr());
}
auto& remote_parent = *static_cast<ProfileNode*>(parent.internal_data());
return create_index(row, column, remote_parent.children().at(row).ptr());
}
GUI::ModelIndex ProfileModel::parent_index(const GUI::ModelIndex& index) const
{
if (!index.is_valid())
return {};
auto& node = *static_cast<ProfileNode*>(index.internal_data());
if (!node.parent())
return {};
// NOTE: If the parent has no parent, it's a root, so we have to look among the roots.
if (!node.parent()->parent()) {
for (size_t row = 0; row < m_profile.roots().size(); ++row) {
if (m_profile.roots()[row].ptr() == node.parent()) {
return create_index(row, index.column(), node.parent());
}
}
ASSERT_NOT_REACHED();
return {};
}
for (size_t row = 0; row < node.parent()->parent()->children().size(); ++row) {
if (node.parent()->parent()->children()[row].ptr() == node.parent())
return create_index(row, index.column(), node.parent());
}
ASSERT_NOT_REACHED();
return {};
}
int ProfileModel::row_count(const GUI::ModelIndex& index) const
{
if (!index.is_valid())
return m_profile.roots().size();
auto& node = *static_cast<ProfileNode*>(index.internal_data());
return node.children().size();
}
int ProfileModel::column_count(const GUI::ModelIndex&) const
{
return Column::__Count;
}
String ProfileModel::column_name(int column) const
{
switch (column) {
case Column::SampleCount:
return m_profile.show_percentages() ? "% Samples" : "# Samples";
case Column::SelfCount:
return m_profile.show_percentages() ? "% Self" : "# Self";
case Column::StackFrame:
return "Stack Frame";
default:
ASSERT_NOT_REACHED();
return {};
}
}
GUI::Variant ProfileModel::data(const GUI::ModelIndex& index, GUI::ModelRole role) const
{
auto* node = static_cast<ProfileNode*>(index.internal_data());
if (role == GUI::ModelRole::TextAlignment) {
if (index.column() == Column::SampleCount || index.column() == Column::SelfCount)
return Gfx::TextAlignment::CenterRight;
}
if (role == GUI::ModelRole::Icon) {
if (index.column() == Column::StackFrame) {
if (node->address() >= 0xc0000000)
return m_kernel_frame_icon;
return m_user_frame_icon;
}
return {};
}
if (role == GUI::ModelRole::Display) {
if (index.column() == Column::SampleCount) {
if (m_profile.show_percentages())
return ((float)node->event_count() / (float)m_profile.filtered_event_count()) * 100.0f;
return node->event_count();
}
if (index.column() == Column::SelfCount) {
if (m_profile.show_percentages())
return ((float)node->self_count() / (float)m_profile.filtered_event_count()) * 100.0f;
return node->self_count();
}
if (index.column() == Column::StackFrame)
return node->symbol();
return {};
}
return {};
}
void ProfileModel::update()
{
did_update(Model::InvalidateAllIndexes);
}

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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <LibGUI/Model.h>
class Profile;
class ProfileModel final : public GUI::Model {
public:
static NonnullRefPtr<ProfileModel> create(Profile& profile)
{
return adopt(*new ProfileModel(profile));
}
enum Column {
SampleCount,
SelfCount,
StackFrame,
__Count
};
virtual ~ProfileModel() override;
virtual int row_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override;
virtual int column_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override;
virtual String column_name(int) const override;
virtual GUI::Variant data(const GUI::ModelIndex&, GUI::ModelRole) const override;
virtual GUI::ModelIndex index(int row, int column, const GUI::ModelIndex& parent = GUI::ModelIndex()) const override;
virtual GUI::ModelIndex parent_index(const GUI::ModelIndex&) const override;
virtual void update() override;
virtual int tree_column() const override { return Column::StackFrame; }
private:
explicit ProfileModel(Profile&);
Profile& m_profile;
GUI::Icon m_user_frame_icon;
GUI::Icon m_kernel_frame_icon;
};

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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "ProfileTimelineWidget.h"
#include "Profile.h"
#include <LibGUI/Painter.h>
ProfileTimelineWidget::ProfileTimelineWidget(Profile& profile)
: m_profile(profile)
{
set_fill_with_background_color(true);
set_fixed_height(80);
}
ProfileTimelineWidget::~ProfileTimelineWidget()
{
}
void ProfileTimelineWidget::paint_event(GUI::PaintEvent& event)
{
GUI::Frame::paint_event(event);
GUI::Painter painter(*this);
painter.add_clip_rect(event.rect());
float column_width = (float)frame_inner_rect().width() / (float)m_profile.length_in_ms();
float frame_height = (float)frame_inner_rect().height() / (float)m_profile.deepest_stack_depth();
for (auto& event : m_profile.events()) {
u64 t = event.timestamp - m_profile.first_timestamp();
int x = (int)((float)t * column_width);
int cw = max(1, (int)column_width);
int column_height = frame_inner_rect().height() - (int)((float)event.frames.size() * frame_height);
bool in_kernel = event.in_kernel;
Color color = in_kernel ? Color::from_rgb(0xc25e5a) : Color::from_rgb(0x5a65c2);
for (int i = 0; i < cw; ++i)
painter.draw_line({ x + i, frame_thickness() + column_height }, { x + i, height() - frame_thickness() * 2 }, color);
}
u64 normalized_start_time = min(m_select_start_time, m_select_end_time);
u64 normalized_end_time = max(m_select_start_time, m_select_end_time);
int select_start_x = (int)((float)(normalized_start_time - m_profile.first_timestamp()) * column_width);
int select_end_x = (int)((float)(normalized_end_time - m_profile.first_timestamp()) * column_width);
painter.fill_rect({ select_start_x, frame_thickness(), select_end_x - select_start_x, height() - frame_thickness() * 2 }, Color(0, 0, 0, 60));
}
u64 ProfileTimelineWidget::timestamp_at_x(int x) const
{
float column_width = (float)frame_inner_rect().width() / (float)m_profile.length_in_ms();
float ms_into_profile = (float)x / column_width;
return m_profile.first_timestamp() + (u64)ms_into_profile;
}
void ProfileTimelineWidget::mousedown_event(GUI::MouseEvent& event)
{
if (event.button() != GUI::MouseButton::Left)
return;
m_selecting = true;
m_select_start_time = timestamp_at_x(event.x());
m_select_end_time = m_select_start_time;
m_profile.set_timestamp_filter_range(m_select_start_time, m_select_end_time);
update();
}
void ProfileTimelineWidget::mousemove_event(GUI::MouseEvent& event)
{
if (!m_selecting)
return;
m_select_end_time = timestamp_at_x(event.x());
m_profile.set_timestamp_filter_range(m_select_start_time, m_select_end_time);
update();
}
void ProfileTimelineWidget::mouseup_event(GUI::MouseEvent& event)
{
if (event.button() != GUI::MouseButton::Left)
return;
m_selecting = false;
if (m_select_start_time == m_select_end_time)
m_profile.clear_timestamp_filter_range();
}

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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <LibGUI/Frame.h>
class Profile;
class ProfileTimelineWidget final : public GUI::Frame {
C_OBJECT(ProfileTimelineWidget)
public:
virtual ~ProfileTimelineWidget() override;
private:
virtual void paint_event(GUI::PaintEvent&) override;
virtual void mousedown_event(GUI::MouseEvent&) override;
virtual void mousemove_event(GUI::MouseEvent&) override;
virtual void mouseup_event(GUI::MouseEvent&) override;
explicit ProfileTimelineWidget(Profile&);
u64 timestamp_at_x(int x) const;
Profile& m_profile;
bool m_selecting { false };
u64 m_select_start_time { 0 };
u64 m_select_end_time { 0 };
};

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/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "Profile.h"
#include "ProfileTimelineWidget.h"
#include <LibCore/ArgsParser.h>
#include <LibCore/ElapsedTimer.h>
#include <LibCore/EventLoop.h>
#include <LibCore/ProcessStatisticsReader.h>
#include <LibCore/Timer.h>
#include <LibGUI/Action.h>
#include <LibGUI/Application.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/Button.h>
#include <LibGUI/Desktop.h>
#include <LibGUI/Label.h>
#include <LibGUI/Menu.h>
#include <LibGUI/MenuBar.h>
#include <LibGUI/MessageBox.h>
#include <LibGUI/Model.h>
#include <LibGUI/ProcessChooser.h>
#include <LibGUI/Splitter.h>
#include <LibGUI/TableView.h>
#include <LibGUI/TreeView.h>
#include <LibGUI/Window.h>
#include <serenity.h>
#include <stdio.h>
#include <string.h>
static bool generate_profile(pid_t& pid);
int main(int argc, char** argv)
{
Core::ArgsParser args_parser;
int pid = 0;
args_parser.add_option(pid, "PID to profile", "pid", 'p', "PID");
args_parser.parse(argc, argv, false);
auto app = GUI::Application::construct(argc, argv);
auto app_icon = GUI::Icon::default_icon("app-profiler");
String path;
if (argc != 2) {
if (!generate_profile(pid))
return 0;
path = String::formatted("/proc/{}/perf_events", pid);
} else {
path = argv[1];
}
auto profile_or_error = Profile::load_from_perfcore_file(path);
if (profile_or_error.is_error()) {
GUI::MessageBox::show(nullptr, profile_or_error.error(), "Profiler", GUI::MessageBox::Type::Error);
return 0;
}
auto& profile = profile_or_error.value();
auto window = GUI::Window::construct();
window->set_title("Profiler");
window->set_icon(app_icon.bitmap_for_size(16));
window->resize(800, 600);
auto& main_widget = window->set_main_widget<GUI::Widget>();
main_widget.set_fill_with_background_color(true);
main_widget.set_layout<GUI::VerticalBoxLayout>();
main_widget.add<ProfileTimelineWidget>(*profile);
auto& bottom_splitter = main_widget.add<GUI::VerticalSplitter>();
auto& tree_view = bottom_splitter.add<GUI::TreeView>();
tree_view.set_should_fill_selected_rows(true);
tree_view.set_column_headers_visible(true);
tree_view.set_model(profile->model());
auto& disassembly_view = bottom_splitter.add<GUI::TableView>();
tree_view.on_selection = [&](auto& index) {
profile->set_disassembly_index(index);
disassembly_view.set_model(profile->disassembly_model());
};
auto menubar = GUI::MenuBar::construct();
auto& app_menu = menubar->add_menu("Profiler");
app_menu.add_action(GUI::CommonActions::make_quit_action([&](auto&) { app->quit(); }));
auto& view_menu = menubar->add_menu("View");
auto update_window_title = [&](auto title, bool is_checked) {
StringBuilder name;
name.append("Profiler");
if (is_checked) {
name.append(" - ");
name.append(title);
}
window->set_title(name.to_string());
};
auto invert_action = GUI::Action::create_checkable("Invert tree", { Mod_Ctrl, Key_I }, [&](auto& action) {
profile->set_inverted(action.is_checked());
update_window_title("Invert tree", action.is_checked());
});
invert_action->set_checked(false);
view_menu.add_action(invert_action);
auto top_functions_action = GUI::Action::create_checkable("Top functions", { Mod_Ctrl, Key_T }, [&](auto& action) {
profile->set_show_top_functions(action.is_checked());
update_window_title("Top functions", action.is_checked());
});
top_functions_action->set_checked(false);
view_menu.add_action(top_functions_action);
auto percent_action = GUI::Action::create_checkable("Show percentages", { Mod_Ctrl, Key_P }, [&](auto& action) {
profile->set_show_percentages(action.is_checked());
tree_view.update();
disassembly_view.update();
update_window_title("Show percentages", action.is_checked());
});
percent_action->set_checked(false);
view_menu.add_action(percent_action);
auto& help_menu = menubar->add_menu("Help");
help_menu.add_action(GUI::CommonActions::make_about_action("Profiler", app_icon, window));
app->set_menubar(move(menubar));
window->show();
return app->exec();
}
static bool prompt_to_stop_profiling(pid_t pid, const String& process_name)
{
auto window = GUI::Window::construct();
window->set_title(String::formatted("Profiling {}({})", process_name, pid));
window->resize(240, 100);
window->set_icon(Gfx::Bitmap::load_from_file("/res/icons/16x16/app-profiler.png"));
window->center_on_screen();
auto& widget = window->set_main_widget<GUI::Widget>();
widget.set_fill_with_background_color(true);
auto& layout = widget.set_layout<GUI::VerticalBoxLayout>();
layout.set_margins(GUI::Margins(0, 0, 0, 16));
auto& timer_label = widget.add<GUI::Label>("...");
Core::ElapsedTimer clock;
clock.start();
auto update_timer = Core::Timer::construct(100, [&] {
timer_label.set_text(String::format("%.1f seconds", (float)clock.elapsed() / 1000.0f));
});
auto& stop_button = widget.add<GUI::Button>("Stop");
stop_button.set_fixed_size(140, 22);
stop_button.on_click = [&](auto) {
GUI::Application::the()->quit();
};
window->show();
return GUI::Application::the()->exec() == 0;
}
bool generate_profile(pid_t& pid)
{
if (!pid) {
auto process_chooser = GUI::ProcessChooser::construct("Profiler", "Profile", Gfx::Bitmap::load_from_file("/res/icons/16x16/app-profiler.png"));
if (process_chooser->exec() == GUI::Dialog::ExecCancel)
return false;
pid = process_chooser->pid();
}
String process_name;
auto all_processes = Core::ProcessStatisticsReader::get_all();
if (all_processes.has_value()) {
if (auto it = all_processes.value().find(pid); it != all_processes.value().end())
process_name = it->value.name;
else
process_name = "(unknown)";
} else {
process_name = "(unknown)";
}
if (profiling_enable(pid) < 0) {
int saved_errno = errno;
GUI::MessageBox::show(nullptr, String::formatted("Unable to profile process {}({}): {}", process_name, pid, strerror(saved_errno)), "Profiler", GUI::MessageBox::Type::Error);
return false;
}
if (!prompt_to_stop_profiling(pid, process_name))
return false;
if (profiling_disable(pid) < 0) {
return false;
}
return true;
}