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Profiler: Move ELF object name to its own profile graph column

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This way you don't have to look at all the library names if you don't
want to. Since we're pretty good about namespacing our things, the
library names are slightly redundant information.
This commit is contained in:
Andreas Kling 2021-02-27 17:45:41 +01:00
parent 2f0ea9ae33
commit 340180ba05
4 changed files with 43 additions and 24 deletions
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42
Userland/DevTools/Profiler/Profile.cpp
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@ -28,12 +28,12 @@
#include "DisassemblyModel.h"
#include "ProfileModel.h"
#include <AK/HashTable.h>
#include <AK/LexicalPath.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)
@ -77,14 +77,14 @@ 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& {
auto find_or_create_root = [&roots](FlyString object_name, 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);
auto new_root = ProfileNode::create(move(object_name), move(symbol), address, offset, timestamp);
roots.append(new_root);
return new_root;
};
@ -135,6 +135,7 @@ void Profile::rebuild_tree()
if (!m_show_top_functions) {
ProfileNode* node = nullptr;
for_each_frame([&](const Frame& frame, bool is_innermost_frame) {
auto& object_name = frame.object_name;
auto& symbol = frame.symbol;
auto& address = frame.address;
auto& offset = frame.offset;
@ -143,9 +144,9 @@ void Profile::rebuild_tree()
return IterationDecision::Break;
if (!node)
node = &find_or_create_root(symbol, address, offset, event.timestamp);
node = &find_or_create_root(object_name, symbol, address, offset, event.timestamp);
else
node = &node->find_or_create_child(symbol, address, offset, event.timestamp);
node = &node->find_or_create_child(object_name, symbol, address, offset, event.timestamp);
node->increment_event_count();
if (is_innermost_frame) {
@ -160,6 +161,7 @@ void Profile::rebuild_tree()
ProfileNode* root = nullptr;
for (size_t j = i; j < event.frames.size(); ++j) {
auto& frame = event.frames.at(j);
auto& object_name = frame.object_name;
auto& symbol = frame.symbol;
auto& address = frame.address;
auto& offset = frame.offset;
@ -167,11 +169,11 @@ void Profile::rebuild_tree()
break;
if (!node) {
node = &find_or_create_root(symbol, address, offset, event.timestamp);
node = &find_or_create_root(object_name, 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);
node = &node->find_or_create_child(object_name, symbol, address, offset, event.timestamp);
}
if (!root->has_seen_event(event_index)) {
@ -257,6 +259,7 @@ Result<NonnullOwnPtr<Profile>, String> Profile::load_from_perfcore_file(const St
auto& frame = stack_array.at(i);
auto ptr = frame.to_number<u32>();
u32 offset = 0;
FlyString object_name;
String symbol;
if (ptr >= 0xc0000000) {
@ -266,10 +269,15 @@ Result<NonnullOwnPtr<Profile>, String> Profile::load_from_perfcore_file(const St
symbol = "??";
}
} else {
symbol = library_metadata->symbolicate(ptr, offset);
if (auto* library = library_metadata->library_containing(ptr)) {
object_name = library->name;
symbol = library->elf.symbolicate(ptr - library->base, &offset);
} else {
symbol = "??";
}
}
event.frames.append({ symbol, ptr, offset });
event.frames.append({ object_name, symbol, ptr, offset });
}
if (event.frames.size() < 2)
@ -391,9 +399,17 @@ const Profile::LibraryMetadata::Library* Profile::LibraryMetadata::library_conta
return nullptr;
}
String Profile::LibraryMetadata::symbolicate(FlatPtr ptr, u32& offset) const
ProfileNode::ProfileNode(const String& object_name, String symbol, u32 address, u32 offset, u64 timestamp)
: m_symbol(move(symbol))
, m_address(address)
, m_offset(offset)
, m_timestamp(timestamp)
{
if (auto* library = library_containing(ptr))
return String::formatted("[{}] {}", library->name, library->elf.symbolicate(ptr - library->base, &offset));
return "??";
String object;
if (object_name.ends_with(": .text")) {
object = object_name.view().substring_view(0, object_name.length() - 7);
} else {
object = object_name;
}
m_object_name = LexicalPath(object).basename();
}