You've already forked linux-packaging-mono
acceptance-tests
data
debian
docs
external
Newtonsoft.Json
api-doc-tools
api-snapshot
aspnetwebstack
bdwgc
binary-reference-assemblies
bockbuild
boringssl
cecil
cecil-legacy
corefx
corert
helix-binaries
ikdasm
ikvm
illinker-test-assets
linker
llvm-project
clang
clang-tools-extra
compiler-rt
libcxx
libcxxabi
libunwind
lld
lldb
cmake
docs
examples
include
lit
lldb.xcodeproj
lldb.xcworkspace
packages
resources
scripts
source
API
Breakpoint
Commands
Core
DataFormatters
Expression
Host
Initialization
Interpreter
Plugins
ABI
Architecture
Disassembler
DynamicLoader
ExpressionParser
Instruction
InstrumentationRuntime
JITLoader
Language
LanguageRuntime
MemoryHistory
ObjectContainer
ObjectFile
ELF
JIT
CMakeLists.txt
ObjectFileJIT.cpp
ObjectFileJIT.h
Mach-O
PECOFF
CMakeLists.txt
OperatingSystem
Platform
Process
ScriptInterpreter
StructuredData
SymbolFile
SymbolVendor
SystemRuntime
UnwindAssembly
CMakeLists.txt
Symbol
Target
Utility
CMakeLists.txt
lldb.cpp
third_party
tools
unittests
utils
www
.arcconfig
.clang-format
.gitignore
CMakeLists.txt
CODE_OWNERS.txt
INSTALL.txt
LICENSE.TXT
use_lldb_suite_root.py
llvm
openmp
polly
nuget-buildtasks
nunit-lite
roslyn-binaries
rx
xunit-binaries
how-to-bump-roslyn-binaries.md
ikvm-native
llvm
m4
man
mcs
mk
mono
msvc
netcore
po
runtime
samples
scripts
support
tools
COPYING.LIB
LICENSE
Makefile.am
Makefile.in
NEWS
README.md
acinclude.m4
aclocal.m4
autogen.sh
code_of_conduct.md
compile
config.guess
config.h.in
config.rpath
config.sub
configure.REMOVED.git-id
configure.ac.REMOVED.git-id
depcomp
install-sh
ltmain.sh.REMOVED.git-id
missing
mkinstalldirs
mono-uninstalled.pc.in
test-driver
winconfig.h
267 lines
8.6 KiB
C++
267 lines
8.6 KiB
C++
![]() |
//===-- ObjectFileJIT.cpp ---------------------------------------*- C++ -*-===//
|
||
|
//
|
||
|
// The LLVM Compiler Infrastructure
|
||
|
//
|
||
|
// This file is distributed under the University of Illinois Open Source
|
||
|
// License. See LICENSE.TXT for details.
|
||
|
//
|
||
|
//===----------------------------------------------------------------------===//
|
||
|
|
||
|
#include "llvm/ADT/StringRef.h"
|
||
|
|
||
|
#include "ObjectFileJIT.h"
|
||
|
#include "lldb/Core/Debugger.h"
|
||
|
#include "lldb/Core/FileSpecList.h"
|
||
|
#include "lldb/Core/Module.h"
|
||
|
#include "lldb/Core/ModuleSpec.h"
|
||
|
#include "lldb/Core/PluginManager.h"
|
||
|
#include "lldb/Core/RangeMap.h"
|
||
|
#include "lldb/Core/Section.h"
|
||
|
#include "lldb/Core/StreamFile.h"
|
||
|
#include "lldb/Host/Host.h"
|
||
|
#include "lldb/Symbol/ObjectFile.h"
|
||
|
#include "lldb/Target/Platform.h"
|
||
|
#include "lldb/Target/Process.h"
|
||
|
#include "lldb/Target/SectionLoadList.h"
|
||
|
#include "lldb/Target/Target.h"
|
||
|
#include "lldb/Utility/ArchSpec.h"
|
||
|
#include "lldb/Utility/DataBuffer.h"
|
||
|
#include "lldb/Utility/DataBufferHeap.h"
|
||
|
#include "lldb/Utility/FileSpec.h"
|
||
|
#include "lldb/Utility/Log.h"
|
||
|
#include "lldb/Utility/StreamString.h"
|
||
|
#include "lldb/Utility/Timer.h"
|
||
|
#include "lldb/Utility/UUID.h"
|
||
|
|
||
|
#ifndef __APPLE__
|
||
|
#include "Utility/UuidCompatibility.h"
|
||
|
#endif
|
||
|
|
||
|
using namespace lldb;
|
||
|
using namespace lldb_private;
|
||
|
|
||
|
void ObjectFileJIT::Initialize() {
|
||
|
PluginManager::RegisterPlugin(GetPluginNameStatic(),
|
||
|
GetPluginDescriptionStatic(), CreateInstance,
|
||
|
CreateMemoryInstance, GetModuleSpecifications);
|
||
|
}
|
||
|
|
||
|
void ObjectFileJIT::Terminate() {
|
||
|
PluginManager::UnregisterPlugin(CreateInstance);
|
||
|
}
|
||
|
|
||
|
lldb_private::ConstString ObjectFileJIT::GetPluginNameStatic() {
|
||
|
static ConstString g_name("jit");
|
||
|
return g_name;
|
||
|
}
|
||
|
|
||
|
const char *ObjectFileJIT::GetPluginDescriptionStatic() {
|
||
|
return "JIT code object file";
|
||
|
}
|
||
|
|
||
|
ObjectFile *ObjectFileJIT::CreateInstance(const lldb::ModuleSP &module_sp,
|
||
|
DataBufferSP &data_sp,
|
||
|
lldb::offset_t data_offset,
|
||
|
const FileSpec *file,
|
||
|
lldb::offset_t file_offset,
|
||
|
lldb::offset_t length) {
|
||
|
// JIT'ed object file is backed by the ObjectFileJITDelegate, never
|
||
|
// read from a file
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
ObjectFile *ObjectFileJIT::CreateMemoryInstance(const lldb::ModuleSP &module_sp,
|
||
|
DataBufferSP &data_sp,
|
||
|
const ProcessSP &process_sp,
|
||
|
lldb::addr_t header_addr) {
|
||
|
// JIT'ed object file is backed by the ObjectFileJITDelegate, never
|
||
|
// read from memory
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
size_t ObjectFileJIT::GetModuleSpecifications(
|
||
|
const lldb_private::FileSpec &file, lldb::DataBufferSP &data_sp,
|
||
|
lldb::offset_t data_offset, lldb::offset_t file_offset,
|
||
|
lldb::offset_t length, lldb_private::ModuleSpecList &specs) {
|
||
|
// JIT'ed object file can't be read from a file on disk
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
ObjectFileJIT::ObjectFileJIT(const lldb::ModuleSP &module_sp,
|
||
|
const ObjectFileJITDelegateSP &delegate_sp)
|
||
|
: ObjectFile(module_sp, NULL, 0, 0, DataBufferSP(), 0), m_delegate_wp() {
|
||
|
if (delegate_sp) {
|
||
|
m_delegate_wp = delegate_sp;
|
||
|
m_data.SetByteOrder(delegate_sp->GetByteOrder());
|
||
|
m_data.SetAddressByteSize(delegate_sp->GetAddressByteSize());
|
||
|
}
|
||
|
}
|
||
|
|
||
|
ObjectFileJIT::~ObjectFileJIT() {}
|
||
|
|
||
|
bool ObjectFileJIT::ParseHeader() {
|
||
|
// JIT code is never in a file, nor is it required to have any header
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
ByteOrder ObjectFileJIT::GetByteOrder() const { return m_data.GetByteOrder(); }
|
||
|
|
||
|
bool ObjectFileJIT::IsExecutable() const { return false; }
|
||
|
|
||
|
uint32_t ObjectFileJIT::GetAddressByteSize() const {
|
||
|
return m_data.GetAddressByteSize();
|
||
|
}
|
||
|
|
||
|
Symtab *ObjectFileJIT::GetSymtab() {
|
||
|
ModuleSP module_sp(GetModule());
|
||
|
if (module_sp) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
|
||
|
if (m_symtab_ap.get() == NULL) {
|
||
|
m_symtab_ap.reset(new Symtab(this));
|
||
|
std::lock_guard<std::recursive_mutex> symtab_guard(
|
||
|
m_symtab_ap->GetMutex());
|
||
|
ObjectFileJITDelegateSP delegate_sp(m_delegate_wp.lock());
|
||
|
if (delegate_sp)
|
||
|
delegate_sp->PopulateSymtab(this, *m_symtab_ap);
|
||
|
// TODO: get symbols from delegate
|
||
|
m_symtab_ap->Finalize();
|
||
|
}
|
||
|
}
|
||
|
return m_symtab_ap.get();
|
||
|
}
|
||
|
|
||
|
bool ObjectFileJIT::IsStripped() {
|
||
|
return false; // JIT code that is in a module is never stripped
|
||
|
}
|
||
|
|
||
|
void ObjectFileJIT::CreateSections(SectionList &unified_section_list) {
|
||
|
if (!m_sections_ap.get()) {
|
||
|
m_sections_ap.reset(new SectionList());
|
||
|
ObjectFileJITDelegateSP delegate_sp(m_delegate_wp.lock());
|
||
|
if (delegate_sp) {
|
||
|
delegate_sp->PopulateSectionList(this, *m_sections_ap);
|
||
|
unified_section_list = *m_sections_ap;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void ObjectFileJIT::Dump(Stream *s) {
|
||
|
ModuleSP module_sp(GetModule());
|
||
|
if (module_sp) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
|
||
|
s->Printf("%p: ", static_cast<void *>(this));
|
||
|
s->Indent();
|
||
|
s->PutCString("ObjectFileJIT");
|
||
|
|
||
|
ArchSpec arch;
|
||
|
if (GetArchitecture(arch))
|
||
|
*s << ", arch = " << arch.GetArchitectureName();
|
||
|
|
||
|
s->EOL();
|
||
|
|
||
|
SectionList *sections = GetSectionList();
|
||
|
if (sections)
|
||
|
sections->Dump(s, NULL, true, UINT32_MAX);
|
||
|
|
||
|
if (m_symtab_ap.get())
|
||
|
m_symtab_ap->Dump(s, NULL, eSortOrderNone);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
bool ObjectFileJIT::GetUUID(lldb_private::UUID *uuid) {
|
||
|
// TODO: maybe get from delegate, not needed for first pass
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
uint32_t ObjectFileJIT::GetDependentModules(FileSpecList &files) {
|
||
|
// JIT modules don't have dependencies, but they could
|
||
|
// if external functions are called and we know where they are
|
||
|
files.Clear();
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
lldb_private::Address ObjectFileJIT::GetEntryPointAddress() {
|
||
|
return Address();
|
||
|
}
|
||
|
|
||
|
lldb_private::Address ObjectFileJIT::GetHeaderAddress() { return Address(); }
|
||
|
|
||
|
ObjectFile::Type ObjectFileJIT::CalculateType() { return eTypeJIT; }
|
||
|
|
||
|
ObjectFile::Strata ObjectFileJIT::CalculateStrata() { return eStrataJIT; }
|
||
|
|
||
|
bool ObjectFileJIT::GetArchitecture(ArchSpec &arch) {
|
||
|
ObjectFileJITDelegateSP delegate_sp(m_delegate_wp.lock());
|
||
|
if (delegate_sp)
|
||
|
return delegate_sp->GetArchitecture(arch);
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
//------------------------------------------------------------------
|
||
|
// PluginInterface protocol
|
||
|
//------------------------------------------------------------------
|
||
|
lldb_private::ConstString ObjectFileJIT::GetPluginName() {
|
||
|
return GetPluginNameStatic();
|
||
|
}
|
||
|
|
||
|
uint32_t ObjectFileJIT::GetPluginVersion() { return 1; }
|
||
|
|
||
|
bool ObjectFileJIT::SetLoadAddress(Target &target, lldb::addr_t value,
|
||
|
bool value_is_offset) {
|
||
|
size_t num_loaded_sections = 0;
|
||
|
SectionList *section_list = GetSectionList();
|
||
|
if (section_list) {
|
||
|
const size_t num_sections = section_list->GetSize();
|
||
|
// "value" is an offset to apply to each top level segment
|
||
|
for (size_t sect_idx = 0; sect_idx < num_sections; ++sect_idx) {
|
||
|
// Iterate through the object file sections to find all
|
||
|
// of the sections that size on disk (to avoid __PAGEZERO)
|
||
|
// and load them
|
||
|
SectionSP section_sp(section_list->GetSectionAtIndex(sect_idx));
|
||
|
if (section_sp && section_sp->GetFileSize() > 0 &&
|
||
|
section_sp->IsThreadSpecific() == false) {
|
||
|
if (target.GetSectionLoadList().SetSectionLoadAddress(
|
||
|
section_sp, section_sp->GetFileAddress() + value))
|
||
|
++num_loaded_sections;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
return num_loaded_sections > 0;
|
||
|
}
|
||
|
|
||
|
size_t ObjectFileJIT::ReadSectionData(lldb_private::Section *section,
|
||
|
lldb::offset_t section_offset, void *dst,
|
||
|
size_t dst_len) {
|
||
|
lldb::offset_t file_size = section->GetFileSize();
|
||
|
if (section_offset < file_size) {
|
||
|
size_t src_len = file_size - section_offset;
|
||
|
if (src_len > dst_len)
|
||
|
src_len = dst_len;
|
||
|
const uint8_t *src =
|
||
|
((uint8_t *)(uintptr_t)section->GetFileOffset()) + section_offset;
|
||
|
|
||
|
memcpy(dst, src, src_len);
|
||
|
return src_len;
|
||
|
}
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
size_t ObjectFileJIT::ReadSectionData(
|
||
|
lldb_private::Section *section,
|
||
|
lldb_private::DataExtractor §ion_data) {
|
||
|
if (section->GetFileSize()) {
|
||
|
const void *src = (void *)(uintptr_t)section->GetFileOffset();
|
||
|
|
||
|
DataBufferSP data_sp(
|
||
|
new lldb_private::DataBufferHeap(src, section->GetFileSize()));
|
||
|
if (data_sp) {
|
||
|
section_data.SetData(data_sp, 0, data_sp->GetByteSize());
|
||
|
section_data.SetByteOrder(GetByteOrder());
|
||
|
section_data.SetAddressByteSize(GetAddressByteSize());
|
||
|
return section_data.GetByteSize();
|
||
|
}
|
||
|
}
|
||
|
section_data.Clear();
|
||
|
return 0;
|
||
|
}
|