c982b3d6e6
to launch a process for debugging. Since this isn't supported on all platforms,
we need to do what we used to do if this isn't supported. I added:
bool
Platform::CanDebugProcess ();
This will get checked before trying to launch a process for debugging and then
fall back to launching the process through the current host debugger. This
should solve the issue for linux and keep the platform code clean.
Centralized logging code for logging errors, warnings and logs when reporting
things for modules or symbol files. Both lldb_private::Module and
lldb_private::SymbolFile now have the following member functions:
void
LogMessage (Log *log, const char *format, ...);
void
ReportWarning (const char *format, ...);
void
ReportError (const char *format, ...);
These will all output the module name and object (if any) such as:
"error: lldb.so ...."
"warning: my_archive.a(foo.o) ...."
This will keep the output consistent and stop a lot of logging calls from
having to try and output all of the information that uniquely identifies
a module or symbol file. Many places in the code were grabbing the path to the
object file manually and if the module represented a .o file in an archive, we
would see log messages like:
error: foo.a - some error happened
llvm-svn: 145219
428 lines
16 KiB
C++
428 lines
16 KiB
C++
//===-- DWARFDebugInfoEntry.h -----------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SymbolFileDWARF_DWARFDebugInfoEntry_h_
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#define SymbolFileDWARF_DWARFDebugInfoEntry_h_
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#include "SymbolFileDWARF.h"
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#include "llvm/ADT/SmallVector.h"
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#include "DWARFDebugAbbrev.h"
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#include "DWARFAbbreviationDeclaration.h"
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#include "DWARFDebugRanges.h"
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#include <vector>
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#include <map>
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#include <set>
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typedef std::map<const DWARFDebugInfoEntry*, dw_addr_t> DIEToAddressMap;
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typedef DIEToAddressMap::iterator DIEToAddressMapIter;
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typedef DIEToAddressMap::const_iterator DIEToAddressMapConstIter;
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typedef std::map<dw_addr_t, const DWARFDebugInfoEntry*> AddressToDIEMap;
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typedef AddressToDIEMap::iterator AddressToDIEMapIter;
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typedef AddressToDIEMap::const_iterator AddressToDIEMapConstIter;
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typedef std::map<dw_offset_t, dw_offset_t> DIEToDIEMap;
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typedef DIEToDIEMap::iterator DIEToDIEMapIter;
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typedef DIEToDIEMap::const_iterator DIEToDIEMapConstIter;
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typedef std::map<uint32_t, const DWARFDebugInfoEntry*> UInt32ToDIEMap;
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typedef UInt32ToDIEMap::iterator UInt32ToDIEMapIter;
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typedef UInt32ToDIEMap::const_iterator UInt32ToDIEMapConstIter;
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typedef std::multimap<uint32_t, const DWARFDebugInfoEntry*> UInt32ToDIEMMap;
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typedef UInt32ToDIEMMap::iterator UInt32ToDIEMMapIter;
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typedef UInt32ToDIEMMap::const_iterator UInt32ToDIEMMapConstIter;
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#define DIE_SIBLING_IDX_BITSIZE 31
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#define DIE_ABBR_IDX_BITSIZE 15
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class DWARFDebugInfoEntry
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{
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public:
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typedef std::vector<DWARFDebugInfoEntry> collection;
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typedef collection::iterator iterator;
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typedef collection::const_iterator const_iterator;
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typedef std::vector<dw_offset_t> offset_collection;
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typedef offset_collection::iterator offset_collection_iterator;
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typedef offset_collection::const_iterator offset_collection_const_iterator;
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class Attributes
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{
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public:
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Attributes();
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~Attributes();
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void Append(const DWARFCompileUnit *cu, dw_offset_t attr_die_offset, dw_attr_t attr, dw_form_t form);
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const DWARFCompileUnit * CompileUnitAtIndex(uint32_t i) const { return m_infos[i].cu; }
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dw_offset_t DIEOffsetAtIndex(uint32_t i) const { return m_infos[i].die_offset; }
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dw_attr_t AttributeAtIndex(uint32_t i) const { return m_infos[i].attr; }
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dw_attr_t FormAtIndex(uint32_t i) const { return m_infos[i].form; }
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bool ExtractFormValueAtIndex (SymbolFileDWARF* dwarf2Data, uint32_t i, DWARFFormValue &form_value) const;
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uint64_t FormValueAsUnsignedAtIndex (SymbolFileDWARF* dwarf2Data, uint32_t i, uint64_t fail_value) const;
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uint64_t FormValueAsUnsigned (SymbolFileDWARF* dwarf2Data, dw_attr_t attr, uint64_t fail_value) const;
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uint32_t FindAttributeIndex(dw_attr_t attr) const;
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bool ContainsAttribute(dw_attr_t attr) const;
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bool RemoveAttribute(dw_attr_t attr);
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void Clear() { m_infos.clear(); }
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uint32_t Size() const { return m_infos.size(); }
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protected:
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struct Info
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{
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const DWARFCompileUnit *cu; // Keep the compile unit with each attribute in case we have DW_FORM_ref_addr values
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dw_offset_t die_offset;
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dw_attr_t attr;
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dw_form_t form;
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};
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typedef llvm::SmallVector<Info, 32> collection;
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collection m_infos;
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};
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struct CompareState
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{
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CompareState() :
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die_offset_pairs()
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{
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assert(sizeof(dw_offset_t)*2 == sizeof(uint64_t));
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}
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bool AddTypePair(dw_offset_t a, dw_offset_t b)
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{
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uint64_t a_b_offsets = (uint64_t)a << 32 | (uint64_t)b;
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// Return true if this type was inserted, false otherwise
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return die_offset_pairs.insert(a_b_offsets).second;
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}
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std::set< uint64_t > die_offset_pairs;
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};
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DWARFDebugInfoEntry():
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m_offset (DW_INVALID_OFFSET),
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m_parent_idx (0),
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m_sibling_idx (0),
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m_empty_children(false),
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m_abbr_idx (0),
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m_has_children (false),
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m_tag (0)
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{
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}
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void Clear ()
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{
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m_offset = DW_INVALID_OFFSET;
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m_parent_idx = 0;
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m_sibling_idx = 0;
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m_empty_children = false;
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m_abbr_idx = 0;
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m_has_children = false;
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m_tag = 0;
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}
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bool Contains (const DWARFDebugInfoEntry *die) const;
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void BuildAddressRangeTable(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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DWARFDebugAranges* debug_aranges) const;
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void BuildFunctionAddressRangeTable(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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DWARFDebugAranges* debug_aranges) const;
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bool FastExtract(
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const lldb_private::DataExtractor& debug_info_data,
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const DWARFCompileUnit* cu,
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const uint8_t *fixed_form_sizes,
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dw_offset_t* offset_ptr);
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bool Extract(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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dw_offset_t* offset_ptr);
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bool LookupAddress(
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const dw_addr_t address,
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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DWARFDebugInfoEntry** function_die,
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DWARFDebugInfoEntry** block_die);
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size_t GetAttributes(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const uint8_t *fixed_form_sizes,
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DWARFDebugInfoEntry::Attributes& attrs,
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uint32_t curr_depth = 0) const; // "curr_depth" for internal use only, don't set this yourself!!!
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dw_offset_t GetAttributeValue(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const dw_attr_t attr,
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DWARFFormValue& formValue,
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dw_offset_t* end_attr_offset_ptr = NULL) const;
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const char* GetAttributeValueAsString(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const dw_attr_t attr,
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const char* fail_value) const;
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uint64_t GetAttributeValueAsUnsigned(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const dw_attr_t attr,
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uint64_t fail_value) const;
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uint64_t GetAttributeValueAsReference(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const dw_attr_t attr,
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uint64_t fail_value) const;
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int64_t GetAttributeValueAsSigned(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const dw_attr_t attr,
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int64_t fail_value) const;
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dw_offset_t GetAttributeValueAsLocation(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const dw_attr_t attr,
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lldb_private::DataExtractor& data,
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uint32_t &block_size) const;
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const char* GetName(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu) const;
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const char* GetMangledName(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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bool substitute_name_allowed = true) const;
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const char* GetPubname(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu) const;
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static bool GetName(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const dw_offset_t die_offset,
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lldb_private::Stream &s);
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static bool AppendTypeName(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const dw_offset_t die_offset,
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lldb_private::Stream &s);
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const char * GetQualifiedName (
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SymbolFileDWARF* dwarf2Data,
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DWARFCompileUnit* cu,
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std::string &storage) const;
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const char * GetQualifiedName (
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SymbolFileDWARF* dwarf2Data,
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DWARFCompileUnit* cu,
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const DWARFDebugInfoEntry::Attributes& attributes,
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std::string &storage) const;
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// static int Compare(
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// SymbolFileDWARF* dwarf2Data,
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// dw_offset_t a_die_offset,
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// dw_offset_t b_die_offset,
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// CompareState &compare_state,
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// bool compare_siblings,
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// bool compare_children);
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//
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// static int Compare(
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// SymbolFileDWARF* dwarf2Data,
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// DWARFCompileUnit* a_cu, const DWARFDebugInfoEntry* a_die,
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// DWARFCompileUnit* b_cu, const DWARFDebugInfoEntry* b_die,
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// CompareState &compare_state,
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// bool compare_siblings,
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// bool compare_children);
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static bool OffsetLessThan (
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const DWARFDebugInfoEntry& a,
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const DWARFDebugInfoEntry& b);
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void Dump(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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lldb_private::Stream &s,
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uint32_t recurse_depth) const;
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void DumpAncestry(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const DWARFDebugInfoEntry* oldest,
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lldb_private::Stream &s,
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uint32_t recurse_depth) const;
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static void DumpAttribute(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const lldb_private::DataExtractor& debug_info_data,
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uint32_t* offset_ptr,
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lldb_private::Stream &s,
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dw_attr_t attr,
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dw_form_t form);
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// This one dumps the comp unit name, objfile name and die offset for this die so the stream S.
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void DumpLocation(
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SymbolFileDWARF* dwarf2Data,
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DWARFCompileUnit* cu,
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lldb_private::Stream &s) const;
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bool GetDIENamesAndRanges(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const char * &name,
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const char * &mangled,
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DWARFDebugRanges::RangeList& rangeList,
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int& decl_file,
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int& decl_line,
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int& decl_column,
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int& call_file,
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int& call_line,
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int& call_column,
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lldb_private::DWARFExpression *frame_base = NULL) const;
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const DWARFAbbreviationDeclaration*
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GetAbbreviationDeclarationPtr (const DWARFCompileUnit *cu) const;
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dw_tag_t
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Tag () const
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{
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return m_tag;
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}
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bool
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IsNULL() const
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{
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return m_abbr_idx == 0;
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}
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dw_offset_t
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GetOffset () const
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{
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return m_offset;
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}
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void
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SetOffset (dw_offset_t offset)
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{
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m_offset = offset;
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}
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bool
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HasChildren () const
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{
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return m_has_children;
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}
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void
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SetHasChildren (bool b)
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{
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m_has_children = b;
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}
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// We know we are kept in a vector of contiguous entries, so we know
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// our parent will be some index behind "this".
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DWARFDebugInfoEntry* GetParent() { return m_parent_idx > 0 ? this - m_parent_idx : NULL; }
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const DWARFDebugInfoEntry* GetParent() const { return m_parent_idx > 0 ? this - m_parent_idx : NULL; }
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// We know we are kept in a vector of contiguous entries, so we know
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// our sibling will be some index after "this".
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DWARFDebugInfoEntry* GetSibling() { return m_sibling_idx > 0 ? this + m_sibling_idx : NULL; }
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const DWARFDebugInfoEntry* GetSibling() const { return m_sibling_idx > 0 ? this + m_sibling_idx : NULL; }
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// We know we are kept in a vector of contiguous entries, so we know
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// we don't need to store our child pointer, if we have a child it will
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// be the next entry in the list...
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DWARFDebugInfoEntry* GetFirstChild() { return (HasChildren() && !m_empty_children) ? this + 1 : NULL; }
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const DWARFDebugInfoEntry* GetFirstChild() const { return (HasChildren() && !m_empty_children) ? this + 1 : NULL; }
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const DWARFDebugInfoEntry* GetParentDeclContextDIE (SymbolFileDWARF* dwarf2Data,
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DWARFCompileUnit* cu) const;
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const DWARFDebugInfoEntry* GetParentDeclContextDIE (SymbolFileDWARF* dwarf2Data,
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DWARFCompileUnit* cu,
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const DWARFDebugInfoEntry::Attributes& attributes) const;
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void
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SetParent (DWARFDebugInfoEntry* parent)
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{
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if (parent)
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{
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// We know we are kept in a vector of contiguous entries, so we know
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// our parent will be some index behind "this".
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m_parent_idx = this - parent;
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}
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else
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m_parent_idx = 0;
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}
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void
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SetSibling (DWARFDebugInfoEntry* sibling)
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{
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if (sibling)
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{
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// We know we are kept in a vector of contiguous entries, so we know
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// our sibling will be some index after "this".
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m_sibling_idx = sibling - this;
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sibling->SetParent(GetParent());
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}
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else
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m_sibling_idx = 0;
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}
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void
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SetSiblingIndex (uint32_t idx)
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{
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m_sibling_idx = idx;
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}
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void
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SetParentIndex (uint32_t idx)
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{
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m_parent_idx = idx;
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}
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bool
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GetEmptyChildren () const
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{
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return m_empty_children;
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}
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void
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SetEmptyChildren (bool b)
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{
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m_empty_children = b;
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}
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static void
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DumpDIECollection (lldb_private::Stream &strm,
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DWARFDebugInfoEntry::collection &die_collection);
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protected:
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dw_offset_t m_offset; // Offset within the .debug_info of the start of this entry
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uint32_t m_parent_idx; // How many to subtract from "this" to get the parent. If zero this die has no parent
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uint32_t m_sibling_idx:31, // How many to add to "this" to get the sibling.
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m_empty_children:1; // If a DIE says it had children, yet it just contained a NULL tag, this will be set.
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uint32_t m_abbr_idx:DIE_ABBR_IDX_BITSIZE,
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m_has_children:1, // Set to 1 if this DIE has children
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m_tag:16; // A copy of the DW_TAG value so we don't have to go through the compile unit abbrev table
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};
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#endif // SymbolFileDWARF_DWARFDebugInfoEntry_h_
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