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Add basic fission support to SymbolFileDWARF
* Create new dwo symbol file class * Add handling for .dwo sections * Change indexes in SymbolFileDWARF to store compile unit offset next to DIE offset * Propagate queries from dwarf compile unit to the dwo compile unit where applicable Differential revision: http://reviews.llvm.org/D12291 llvm-svn: 247132
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Tamas Berghammer
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Sep 9, 2015
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| //===-- DIERef.cpp ----------------------------------------------*- C++ -*-===// | ||
| // | ||
| // The LLVM Compiler Infrastructure | ||
| // | ||
| // This file is distributed under the University of Illinois Open Source | ||
| // License. See LICENSE.TXT for details. | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
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| #include "DIERef.h" | ||
| #include "DWARFCompileUnit.h" | ||
| #include "DWARFFormValue.h" | ||
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| DIERef::DIERef() : | ||
| cu_offset(DW_INVALID_OFFSET), | ||
| die_offset(DW_INVALID_OFFSET) | ||
| {} | ||
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| DIERef::DIERef(dw_offset_t d) : | ||
| cu_offset(DW_INVALID_OFFSET), | ||
| die_offset(d) | ||
| {} | ||
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| DIERef::DIERef(dw_offset_t c, dw_offset_t d) : | ||
| cu_offset(c), | ||
| die_offset(d) | ||
| {} | ||
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| DIERef::DIERef(lldb::user_id_t uid) : | ||
| cu_offset(uid>>32), | ||
| die_offset(uid&0xffffffff) | ||
| {} | ||
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| DIERef::DIERef(const DWARFFormValue& form_value) : | ||
| cu_offset(DW_INVALID_OFFSET), | ||
| die_offset(DW_INVALID_OFFSET) | ||
| { | ||
| if (form_value.IsValid()) | ||
| { | ||
| const DWARFCompileUnit* dwarf_cu = form_value.GetCompileUnit(); | ||
| if (dwarf_cu) | ||
| { | ||
| if (dwarf_cu->GetBaseObjOffset() != DW_INVALID_OFFSET) | ||
| cu_offset = dwarf_cu->GetBaseObjOffset(); | ||
| else | ||
| cu_offset = dwarf_cu->GetOffset(); | ||
| } | ||
| die_offset = form_value.Reference(); | ||
| } | ||
| } | ||
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| lldb::user_id_t | ||
| DIERef::GetUID() const | ||
| { | ||
| return ((lldb::user_id_t)cu_offset) << 32 | die_offset; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| //===-- DIERef.h ------------------------------------------------*- C++ -*-===// | ||
| // | ||
| // The LLVM Compiler Infrastructure | ||
| // | ||
| // This file is distributed under the University of Illinois Open Source | ||
| // License. See LICENSE.TXT for details. | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
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| #ifndef SymbolFileDWARF_DIERef_h_ | ||
| #define SymbolFileDWARF_DIERef_h_ | ||
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| #include "lldb/Core/dwarf.h" | ||
| #include "lldb/lldb-defines.h" | ||
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| class DWARFFormValue; | ||
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| struct DIERef | ||
| { | ||
| DIERef(); | ||
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| explicit | ||
| DIERef(dw_offset_t d); | ||
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| DIERef(dw_offset_t c, dw_offset_t d); | ||
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| explicit | ||
| DIERef(lldb::user_id_t uid); | ||
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| explicit | ||
| DIERef(const DWARFFormValue& form_value); | ||
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| lldb::user_id_t | ||
| GetUID() const; | ||
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| dw_offset_t cu_offset; | ||
| dw_offset_t die_offset; | ||
| }; | ||
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| typedef std::vector<DIERef> DIEArray; | ||
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| #endif // SymbolFileDWARF_DIERef_h_ |
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