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Profiler: Fix disassembly view to work with shared libraries

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Also, update path to kernel image from "boot/kernel" to "boot/Kernel".

Fixes #4555
This commit is contained in:
Itamar 2021-01-09 11:11:02 +02:00 • committed by Andreas Kling
parent 1af2f65df5
commit 4728d0dd6a
2 changed files with 28 additions and 15 deletions
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41
DevTools/Profiler/DisassemblyModel.cpp
View file

@ -55,26 +55,39 @@ DisassemblyModel::DisassemblyModel(Profile& profile, ProfileNode& node)
: m_profile(profile)
, m_node(node)
{
String path;
if (m_node.address() >= 0xc0000000)
path = "/boot/Kernel";
else
path = profile.executable_path();
m_file = make<MappedFile>(path);
OwnPtr<ELF::Image> kernel_elf;
const ELF::Image* elf;
FlatPtr base_address = 0;
if (m_node.address() >= 0xc0000000) {
if (!m_kernel_file) {
m_kernel_file = new MappedFile("/boot/Kernel");
if (!m_kernel_file->is_valid())
return;
}
kernel_elf = make<ELF::Image>((const u8*)m_kernel_file->data(), m_kernel_file->size());
elf = kernel_elf.ptr();
} else {
auto library_data = profile.coredump().library_containing(node.address());
if (!library_data) {
dbgln("no library data");
return;
}
elf = &library_data->lib_elf;
base_address = library_data->base_address;
}
if (!m_file->is_valid())
return;
auto elf = ELF::Image((const u8*)m_file->data(), m_file->size());
auto symbol = elf.find_symbol(node.address());
if (!symbol.has_value())
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::ELFSymbolProvider symbol_provider(*elf);
X86::SimpleInstructionStream stream((const u8*)view.characters_without_null_termination(), view.length());
X86::Disassembler disassembler(stream);

2
DevTools/Profiler/DisassemblyModel.h
View file

@ -69,7 +69,7 @@ private:
Profile& m_profile;
ProfileNode& m_node;
OwnPtr<MappedFile> m_file;
OwnPtr<MappedFile> m_kernel_file;
Vector<InstructionData> m_instructions;
};