4515d35f5c
D80519 <https://reviews.llvm.org/D80519> added support for `DW_TAG_GNU_call_site` but Bug 45886 <https://bugs.llvm.org/show_bug.cgi?id=45886> found one case did not work. There is: 0x000000b1: DW_TAG_GNU_call_site DW_AT_low_pc (0x000000000040111e) DW_AT_abstract_origin (0x000000cc "a") ... 0x000000cc: DW_TAG_subprogram DW_AT_name ("a") DW_AT_prototyped (true) DW_AT_low_pc (0x0000000000401109) ^^^^^^^^^^^^ - here it did overwrite the 'low_pc' variable containing value 0x40111e we wanted DW_AT_high_pc (0x0000000000401114) DW_AT_frame_base (DW_OP_call_frame_cfa) DW_AT_GNU_all_call_sites (true) DW_TAG_GNU_call_site attributes order as produced by GCC: 0x000000b1: DW_TAG_GNU_call_site DW_AT_low_pc (0x000000000040111e) DW_AT_abstract_origin (0x000000cc "a") clang produces the attributes in opposite order: 0x00000064: DW_TAG_GNU_call_site DW_AT_abstract_origin (0x0000002a "a") DW_AT_low_pc (0x0000000000401146) Differential Revision: https://reviews.llvm.org/D81334
128 lines
3.4 KiB
C++
128 lines
3.4 KiB
C++
//===-- DWARFBaseDIE.cpp --------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "DWARFBaseDIE.h"
|
|
|
|
#include "DWARFUnit.h"
|
|
#include "DWARFDebugInfoEntry.h"
|
|
#include "SymbolFileDWARF.h"
|
|
|
|
#include "lldb/Core/Module.h"
|
|
#include "lldb/Symbol/ObjectFile.h"
|
|
#include "lldb/Utility/Log.h"
|
|
|
|
using namespace lldb_private;
|
|
|
|
llvm::Optional<DIERef> DWARFBaseDIE::GetDIERef() const {
|
|
if (!IsValid())
|
|
return llvm::None;
|
|
|
|
return DIERef(m_cu->GetSymbolFileDWARF().GetDwoNum(), m_cu->GetDebugSection(),
|
|
m_die->GetOffset());
|
|
}
|
|
|
|
dw_tag_t DWARFBaseDIE::Tag() const {
|
|
if (m_die)
|
|
return m_die->Tag();
|
|
else
|
|
return llvm::dwarf::DW_TAG_null;
|
|
}
|
|
|
|
const char *DWARFBaseDIE::GetTagAsCString() const {
|
|
return lldb_private::DW_TAG_value_to_name(Tag());
|
|
}
|
|
|
|
const char *DWARFBaseDIE::GetAttributeValueAsString(const dw_attr_t attr,
|
|
const char *fail_value) const {
|
|
if (IsValid())
|
|
return m_die->GetAttributeValueAsString(GetCU(), attr, fail_value);
|
|
else
|
|
return fail_value;
|
|
}
|
|
|
|
uint64_t DWARFBaseDIE::GetAttributeValueAsUnsigned(const dw_attr_t attr,
|
|
uint64_t fail_value) const {
|
|
if (IsValid())
|
|
return m_die->GetAttributeValueAsUnsigned(GetCU(), attr, fail_value);
|
|
else
|
|
return fail_value;
|
|
}
|
|
|
|
uint64_t DWARFBaseDIE::GetAttributeValueAsAddress(const dw_attr_t attr,
|
|
uint64_t fail_value) const {
|
|
if (IsValid())
|
|
return m_die->GetAttributeValueAsAddress(GetCU(), attr, fail_value);
|
|
else
|
|
return fail_value;
|
|
}
|
|
|
|
lldb::user_id_t DWARFBaseDIE::GetID() const {
|
|
if (IsValid())
|
|
return GetDWARF()->GetUID(*this);
|
|
return LLDB_INVALID_UID;
|
|
}
|
|
|
|
const char *DWARFBaseDIE::GetName() const {
|
|
if (IsValid())
|
|
return m_die->GetName(m_cu);
|
|
else
|
|
return nullptr;
|
|
}
|
|
|
|
lldb::ModuleSP DWARFBaseDIE::GetModule() const {
|
|
SymbolFileDWARF *dwarf = GetDWARF();
|
|
if (dwarf)
|
|
return dwarf->GetObjectFile()->GetModule();
|
|
else
|
|
return lldb::ModuleSP();
|
|
}
|
|
|
|
dw_offset_t DWARFBaseDIE::GetOffset() const {
|
|
if (IsValid())
|
|
return m_die->GetOffset();
|
|
else
|
|
return DW_INVALID_OFFSET;
|
|
}
|
|
|
|
SymbolFileDWARF *DWARFBaseDIE::GetDWARF() const {
|
|
if (m_cu)
|
|
return &m_cu->GetSymbolFileDWARF();
|
|
else
|
|
return nullptr;
|
|
}
|
|
|
|
bool DWARFBaseDIE::HasChildren() const {
|
|
return m_die && m_die->HasChildren();
|
|
}
|
|
|
|
bool DWARFBaseDIE::Supports_DW_AT_APPLE_objc_complete_type() const {
|
|
return IsValid() && GetDWARF()->Supports_DW_AT_APPLE_objc_complete_type(m_cu);
|
|
}
|
|
|
|
size_t DWARFBaseDIE::GetAttributes(DWARFAttributes &attributes,
|
|
Recurse recurse) const {
|
|
if (IsValid())
|
|
return m_die->GetAttributes(m_cu, attributes, recurse);
|
|
attributes.Clear();
|
|
return 0;
|
|
}
|
|
|
|
bool operator==(const DWARFBaseDIE &lhs, const DWARFBaseDIE &rhs) {
|
|
return lhs.GetDIE() == rhs.GetDIE() && lhs.GetCU() == rhs.GetCU();
|
|
}
|
|
|
|
bool operator!=(const DWARFBaseDIE &lhs, const DWARFBaseDIE &rhs) {
|
|
return !(lhs == rhs);
|
|
}
|
|
|
|
const DWARFDataExtractor &DWARFBaseDIE::GetData() const {
|
|
// Clients must check if this DIE is valid before calling this function.
|
|
assert(IsValid());
|
|
return m_cu->GetData();
|
|
}
|