[ObjectYAML] Add support for DWARF5 Unit header

In DWARF5 the Unit header added a new field, UnitType, and swapped the order of the address size and abbreviation offset fields.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297183 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/ObjectYAML/DWARFYAML.h b/include/llvm/ObjectYAML/DWARFYAML.h
index 98da868cd22218eaa4746a2b44bbf8cf85c29d5a..55beb821a2180404185285917da6909ecae0f235 100644 (file)
--- a/include/llvm/ObjectYAML/DWARFYAML.h
+++ b/include/llvm/ObjectYAML/DWARFYAML.h
@@ -100,6 +100,7 @@ struct Entry {
 struct Unit {
   InitialLength Length;
   uint16_t Version;
+  llvm::dwarf::UnitType Type; // Added in DWARF 5
   uint32_t AbbrOffset;
   uint8_t AddrSize;
   std::vector<Entry> Entries;
@@ -285,6 +286,16 @@ template <> struct ScalarEnumerationTraits<dwarf::Form> {
   }
 };
 
+#define HANDLE_DW_UT(unused, name)                                             \
+  io.enumCase(value, "DW_UT_" #name, dwarf::DW_UT_##name);
+
+template <> struct ScalarEnumerationTraits<dwarf::UnitType> {
+  static void enumeration(IO &io, dwarf::UnitType &value) {
+#include "llvm/Support/Dwarf.def"
+    io.enumFallback<Hex8>(value);
+  }
+};
+
 template <> struct ScalarEnumerationTraits<dwarf::Constants> {
   static void enumeration(IO &io, dwarf::Constants &value) {
     io.enumCase(value, "DW_CHILDREN_no", dwarf::DW_CHILDREN_no);

diff --git a/lib/ObjectYAML/DWARFEmitter.cpp b/lib/ObjectYAML/DWARFEmitter.cpp
index c1116a1be4671c0a2ac6325a355ed1e97e22b352..1aa1519b708ba02d30f3693e2731e8818081290d 100644 (file)
--- a/lib/ObjectYAML/DWARFEmitter.cpp
+++ b/lib/ObjectYAML/DWARFEmitter.cpp
@@ -130,8 +130,15 @@ protected:
   virtual void onStartCompileUnit(const DWARFYAML::Unit &CU) {
     writeInitialLength(CU.Length, OS, DebugInfo.IsLittleEndian);
     writeInteger((uint16_t)CU.Version, OS, DebugInfo.IsLittleEndian);
-    writeInteger((uint32_t)CU.AbbrOffset, OS, DebugInfo.IsLittleEndian);
-    writeInteger((uint8_t)CU.AddrSize, OS, DebugInfo.IsLittleEndian);
+    if(CU.Version >= 5) {
+      writeInteger((uint8_t)CU.Type, OS, DebugInfo.IsLittleEndian);
+      writeInteger((uint8_t)CU.AddrSize, OS, DebugInfo.IsLittleEndian);
+      writeInteger((uint32_t)CU.AbbrOffset, OS, DebugInfo.IsLittleEndian);
+    }else {
+      writeInteger((uint32_t)CU.AbbrOffset, OS, DebugInfo.IsLittleEndian);
+      writeInteger((uint8_t)CU.AddrSize, OS, DebugInfo.IsLittleEndian);
+    }
+    
   }
 
   virtual void onStartDIE(const DWARFYAML::Unit &CU,

diff --git a/lib/ObjectYAML/DWARFYAML.cpp b/lib/ObjectYAML/DWARFYAML.cpp
index 2a8cdd5fd4af1fcc7b3c6387b6bcb4dbb555d743..edb9545f14b131805ae6589aea6380607b83f2dc 100644 (file)
--- a/lib/ObjectYAML/DWARFYAML.cpp
+++ b/lib/ObjectYAML/DWARFYAML.cpp
@@ -99,6 +99,8 @@ void MappingTraits<DWARFYAML::PubSection>::mapping(
 void MappingTraits<DWARFYAML::Unit>::mapping(IO &IO, DWARFYAML::Unit &Unit) {
   IO.mapRequired("Length", Unit.Length);
   IO.mapRequired("Version", Unit.Version);
+  if (Unit.Version >= 5)
+    IO.mapRequired("UnitType", Unit.Type);
   IO.mapRequired("AbbrOffset", Unit.AbbrOffset);
   IO.mapRequired("AddrSize", Unit.AddrSize);
   IO.mapOptional("Entries", Unit.Entries);

diff --git a/test/ObjectYAML/MachO/DWARF5-debug_info.yaml b/test/ObjectYAML/MachO/DWARF5-debug_info.yaml
new file mode 100644 (file)
index 0000000..d0e8183
--- /dev/null
+++ b/test/ObjectYAML/MachO/DWARF5-debug_info.yaml
@@ -0,0 +1,582 @@
+# RUN: yaml2obj %s | obj2yaml | FileCheck %s
+
+--- !mach-o
+FileHeader:      
+  magic:           0xFEEDFACF
+  cputype:         0x01000007
+  cpusubtype:      0x00000003
+  filetype:        0x0000000A
+  ncmds:           5
+  sizeofcmds:      1800
+  flags:           0x00000000
+  reserved:        0x00000000
+LoadCommands:    
+  - cmd:             LC_SEGMENT_64
+    cmdsize:         72
+    segname:         __PAGEZERO
+    vmaddr:          0
+    vmsize:          4294967296
+    fileoff:         0
+    filesize:        0
+    maxprot:         0
+    initprot:        0
+    nsects:          0
+    flags:           0
+  - cmd:             LC_SEGMENT_64
+    cmdsize:         472
+    segname:         __TEXT
+    vmaddr:          4294967296
+    vmsize:          4096
+    fileoff:         0
+    filesize:        0
+    maxprot:         7
+    initprot:        5
+    nsects:          5
+    flags:           0
+    Sections:        
+      - sectname:        __text
+        segname:         __TEXT
+        addr:            0x0000000100000F50
+        size:            52
+        offset:          0x00000000
+        align:           4
+        reloff:          0x00000000
+        nreloc:          0
+        flags:           0x80000400
+        reserved1:       0x00000000
+        reserved2:       0x00000000
+        reserved3:       0x00000000
+      - sectname:        __stubs
+        segname:         __TEXT
+        addr:            0x0000000100000F84
+        size:            6
+        offset:          0x00000000
+        align:           1
+        reloff:          0x00000000
+        nreloc:          0
+        flags:           0x80000408
+        reserved1:       0x00000000
+        reserved2:       0x00000006
+        reserved3:       0x00000000
+      - sectname:        __stub_helper
+        segname:         __TEXT
+        addr:            0x0000000100000F8C
+        size:            26
+        offset:          0x00000000
+        align:           2
+        reloff:          0x00000000
+        nreloc:          0
+        flags:           0x80000400
+        reserved1:       0x00000000
+        reserved2:       0x00000000
+        reserved3:       0x00000000
+      - sectname:        __cstring
+        segname:         __TEXT
+        addr:            0x0000000100000FA6
+        size:            14
+        offset:          0x00000000
+        align:           0
+        reloff:          0x00000000
+        nreloc:          0
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+        reserved1:       0x00000000
+        reserved2:       0x00000000
+        reserved3:       0x00000000
+      - sectname:        __unwind_info
+        segname:         __TEXT
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+        size:            72
+        offset:          0x00000000
+        align:           2
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+        nreloc:          0
+        flags:           0x00000000
+        reserved1:       0x00000000
+        reserved2:       0x00000000
+        reserved3:       0x00000000
+  - cmd:             LC_SEGMENT_64
+    cmdsize:         232
+    segname:         __DATA
+    vmaddr:          4294971392
+    vmsize:          4096
+    fileoff:         0
+    filesize:        0
+    maxprot:         7
+    initprot:        3
+    nsects:          2
+    flags:           0
+    Sections:        
+      - sectname:        __nl_symbol_ptr
+        segname:         __DATA
+        addr:            0x0000000100001000
+        size:            16
+        offset:          0x00000000
+        align:           3
+        reloff:          0x00000000
+        nreloc:          0
+        flags:           0x00000006
+        reserved1:       0x00000001
+        reserved2:       0x00000000
+        reserved3:       0x00000000
+      - sectname:        __la_symbol_ptr
+        segname:         __DATA
+        addr:            0x0000000100001010
+        size:            8
+        offset:          0x00000000
+        align:           3
+        reloff:          0x00000000
+        nreloc:          0
+        flags:           0x00000007
+        reserved1:       0x00000003
+        reserved2:       0x00000000
+        reserved3:       0x00000000
+  - cmd:             LC_SEGMENT_64
+    cmdsize:         72
+    segname:         __LINKEDIT
+    vmaddr:          4294975488
+    vmsize:          4096
+    fileoff:         4096
+    filesize:        60
+    maxprot:         7
+    initprot:        1
+    nsects:          0
+    flags:           0
+  - cmd:             LC_SEGMENT_64
+    cmdsize:         952
+    segname:         __DWARF
+    vmaddr:          4294979584
+    vmsize:          4096
+    fileoff:         8192
+    filesize:        765
+    maxprot:         7
+    initprot:        3
+    nsects:          11
+    flags:           0
+    Sections:        
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+        segname:         __DWARF
+        addr:            0x0000000100003000
+        size:            69
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+        align:           0
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+        addr:            0x0000000100003045
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+        nreloc:          0
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+        reserved2:       0x00000000
+        reserved3:       0x00000000
+      - sectname:        __debug_pubtypes
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+        addr:            0x0000000100003060
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+        reserved2:       0x00000000
+        reserved3:       0x00000000
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+        segname:         __DWARF
+        addr:            0x0000000100003083
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+        offset:          0x00002083
+        align:           0
+        reloff:          0x00000000
+        nreloc:          0
+        flags:           0x00000000
+        reserved1:       0x00000000
+        reserved2:       0x00000000
+        reserved3:       0x00000000
+      - sectname:        __debug_info
+        segname:         __DWARF
+        addr:            0x00000001000030B3
+        size:            122
+        offset:          0x000020B3
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+        reserved1:       0x00000000
+        reserved2:       0x00000000
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+        segname:         __DWARF
+        addr:            0x000000010000312C
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+        reserved3:       0x00000000
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+        segname:         __DWARF
+        addr:            0x0000000100003178
+        size:            142
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+        segname:         __DWARF
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+        offset:          0x00002207
+        align:           0
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+        nreloc:          0
+        flags:           0x00000000
+        reserved1:       0x00000000
+        reserved2:       0x00000000
+        reserved3:       0x00000000
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+        segname:         __DWARF
+        addr:            0x0000000100003242
+        size:            36
+        offset:          0x00002243
+        align:           0
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+        flags:           0x00000000
+        reserved1:       0x00000000
+        reserved2:       0x00000000
+        reserved3:       0x00000000
+      - sectname:        __apple_types
+        segname:         __DWARF
+        addr:            0x0000000100003266
+        size:            114
+        offset:          0x00002267
+        align:           0
+        reloff:          0x00000000
+        nreloc:          0
+        flags:           0x00000000
+        reserved1:       0x00000000
+        reserved2:       0x00000000
+        reserved3:       0x00000000
+      - sectname:        __apple_objc
+        segname:         __DWARF
+        addr:            0x00000001000032D8
+        size:            36
+        offset:          0x000022D9
+        align:           0
+        reloff:          0x00000000
+        nreloc:          0
+        flags:           0x00000000
+        reserved1:       0x00000000
+        reserved2:       0x00000000
+        reserved3:       0x00000000
+LinkEditData:    
+  NameList:        
+    - n_strx:          2
+      n_type:          0x0F
+      n_sect:          1
+      n_desc:          16
+      n_value:         4294967296
+    - n_strx:          22
+      n_type:          0x0F
+      n_sect:          1
+      n_desc:          0
+      n_value:         4294971216
+  StringTable:     
+    - ''
+    - ''
+    - __mh_execute_header
+    - _main
+DWARF:           
+  debug_abbrev:    
+    - Code:            0x00000001
+      Tag:             DW_TAG_compile_unit
+      Children:        DW_CHILDREN_yes
+      Attributes:      
+        - Attribute:       DW_AT_producer
+          Form:            DW_FORM_strp
+        - Attribute:       DW_AT_language
+          Form:            DW_FORM_data2
+        - Attribute:       DW_AT_name
+          Form:            DW_FORM_strp
+        - Attribute:       DW_AT_stmt_list
+          Form:            DW_FORM_sec_offset
+        - Attribute:       DW_AT_comp_dir
+          Form:            DW_FORM_strp
+        - Attribute:       DW_AT_low_pc
+          Form:            DW_FORM_addr
+        - Attribute:       DW_AT_high_pc
+          Form:            DW_FORM_data4
+    - Code:            0x00000002
+      Tag:             DW_TAG_subprogram
+      Children:        DW_CHILDREN_yes
+      Attributes:      
+        - Attribute:       DW_AT_low_pc
+          Form:            DW_FORM_addr
+        - Attribute:       DW_AT_high_pc
+          Form:            DW_FORM_data4
+        - Attribute:       DW_AT_frame_base
+          Form:            DW_FORM_exprloc
+        - Attribute:       DW_AT_name
+          Form:            DW_FORM_strp
+        - Attribute:       DW_AT_decl_file
+          Form:            DW_FORM_data1
+        - Attribute:       DW_AT_decl_line
+          Form:            DW_FORM_data1
+        - Attribute:       DW_AT_prototyped
+          Form:            DW_FORM_flag_present
+        - Attribute:       DW_AT_type
+          Form:            DW_FORM_ref4
+        - Attribute:       DW_AT_external
+          Form:            DW_FORM_flag_present
+    - Code:            0x00000003
+      Tag:             DW_TAG_formal_parameter
+      Children:        DW_CHILDREN_no
+      Attributes:      
+        - Attribute:       DW_AT_location
+          Form:            DW_FORM_exprloc
+        - Attribute:       DW_AT_name
+          Form:            DW_FORM_strp
+        - Attribute:       DW_AT_decl_file
+          Form:            DW_FORM_data1
+        - Attribute:       DW_AT_decl_line
+          Form:            DW_FORM_data1
+        - Attribute:       DW_AT_type
+          Form:            DW_FORM_ref4
+    - Code:            0x00000004
+      Tag:             DW_TAG_base_type
+      Children:        DW_CHILDREN_no
+      Attributes:      
+        - Attribute:       DW_AT_name
+          Form:            DW_FORM_strp
+        - Attribute:       DW_AT_encoding
+          Form:            DW_FORM_data1
+        - Attribute:       DW_AT_byte_size
+          Form:            DW_FORM_data1
+    - Code:            0x00000005
+      Tag:             DW_TAG_pointer_type
+      Children:        DW_CHILDREN_no
+      Attributes:      
+        - Attribute:       DW_AT_type
+          Form:            DW_FORM_ref4
+  debug_aranges:   
+    - Length:          
+        TotalLength:     44
+      Version:         2
+      CuOffset:        0
+      AddrSize:        8
+      SegSize:         0
+      Descriptors:     
+        - Address:         0x0000000100000F50
+          Length:          52
+  debug_info:      
+    - Length:          
+        TotalLength:     118
+      Version:         5
+      UnitType:        DW_UT_compile
+      AbbrOffset:      0
+      AddrSize:        8
+      Entries:         
+        - AbbrCode:        0x00000001
+          Values:          
+            - Value:           0x0000000000000001
+            - Value:           0x000000000000000C
+            - Value:           0x0000000000000038
+            - Value:           0x0000000000000000
+            - Value:           0x0000000000000046
+            - Value:           0x0000000100000F50
+            - Value:           0x0000000000000034
+        - AbbrCode:        0x00000002
+          Values:          
+            - Value:           0x0000000100000F50
+            - Value:           0x0000000000000034
+            - Value:           0x0000000000000001
+              BlockData:       
+                - 0x56
+            - Value:           0x0000000000000076
+            - Value:           0x0000000000000001
+            - Value:           0x0000000000000003
+            - Value:           0x0000000000000001
+            - Value:           0x0000000000000060
+            - Value:           0x0000000000000001
+        - AbbrCode:        0x00000003
+          Values:          
+            - Value:           0x0000000000000002
+              BlockData:       
+                - 0x91
+                - 0x78
+            - Value:           0x000000000000007B
+            - Value:           0x0000000000000001
+            - Value:           0x0000000000000003
+            - Value:           0x0000000000000060
+        - AbbrCode:        0x00000003
+          Values:          
+            - Value:           0x0000000000000002
+              BlockData:       
+                - 0x91
+                - 0x70
+            - Value:           0x0000000000000080
+            - Value:           0x0000000000000001
+            - Value:           0x0000000000000003
+            - Value:           0x0000000000000067
+        - AbbrCode:        0x00000000
+          Values:          
+        - AbbrCode:        0x00000004
+          Values:          
+            - Value:           0x0000000000000085
+            - Value:           0x0000000000000005
+            - Value:           0x0000000000000004
+        - AbbrCode:        0x00000005
+          Values:          
+            - Value:           0x000000000000006C
+        - AbbrCode:        0x00000005
+          Values:          
+            - Value:           0x0000000000000071
+        - AbbrCode:        0x00000004
+          Values:          
+            - Value:           0x0000000000000089
+            - Value:           0x0000000000000006
+            - Value:           0x0000000000000001
+        - AbbrCode:        0x00000000
+          Values:          
+  debug_line:      
+    - Length:          
+        TotalLength:     65
+      Version:         2
+      PrologueLength:  36
+      MinInstLength:   1
+      DefaultIsStmt:   1
+      LineBase:        251
+      LineRange:       14
+      OpcodeBase:      13
+      StandardOpcodeLengths: 
+        - 0
+        - 1
+        - 1
+        - 1
+        - 1
+        - 0
+        - 0
+        - 0
+        - 1
+        - 0
+        - 0
+        - 1
+      IncludeDirs:     
+      Files:           
+        - Name:            hello_world.c
+          DirIdx:          0
+          ModTime:         0
+          Length:          0
+      Opcodes:         
+        - Opcode:          DW_LNS_extended_op
+          ExtLen:          9
+          SubOpcode:       DW_LNE_set_address
+          Data:            4294971216
+        - Opcode:          0x14
+          Data:            4294971216
+        - Opcode:          DW_LNS_set_column
+          Data:            3
+        - Opcode:          DW_LNS_set_prologue_end
+          Data:            3
+        - Opcode:          DW_LNS_const_add_pc
+          Data:            3
+        - Opcode:          0xBB
+          Data:            3
+        - Opcode:          0xBB
+          Data:            3
+        - Opcode:          DW_LNS_advance_pc
+          Data:            11
+        - Opcode:          DW_LNS_extended_op
+          ExtLen:          1
+          SubOpcode:       DW_LNE_end_sequence
+          Data:            11
+...
+
+
+#CHECK: DWARF:           
+#CHECK:   debug_info:      
+#CHECK:     - Length:          
+#CHECK:         TotalLength:     118
+#CHECK:       Version:         5
+#CHECK:       UnitType:        DW_UT_compile
+#CHECK:       AbbrOffset:      0
+#CHECK:       AddrSize:        8
+#CHECK:       Entries:         
+#CHECK:         - AbbrCode:        0x00000001
+#CHECK:           Values:          
+#CHECK:             - Value:           0x0000000000000001
+#CHECK:             - Value:           0x000000000000000C
+#CHECK:             - Value:           0x0000000000000038
+#CHECK:             - Value:           0x0000000000000000
+#CHECK:             - Value:           0x0000000000000046
+#CHECK:             - Value:           0x0000000100000F50
+#CHECK:             - Value:           0x0000000000000034
+#CHECK:         - AbbrCode:        0x00000002
+#CHECK:           Values:          
+#CHECK:             - Value:           0x0000000100000F50
+#CHECK:             - Value:           0x0000000000000034
+#CHECK:             - Value:           0x0000000000000001
+#CHECK:               BlockData:       
+#CHECK:                 - 0x56
+#CHECK:             - Value:           0x0000000000000076
+#CHECK:             - Value:           0x0000000000000001
+#CHECK:             - Value:           0x0000000000000003
+#CHECK:             - Value:           0x0000000000000001
+#CHECK:             - Value:           0x0000000000000060
+#CHECK:             - Value:           0x0000000000000001
+#CHECK:         - AbbrCode:        0x00000003
+#CHECK:           Values:          
+#CHECK:             - Value:           0x0000000000000002
+#CHECK:               BlockData:       
+#CHECK:                 - 0x91
+#CHECK:                 - 0x78
+#CHECK:             - Value:           0x000000000000007B
+#CHECK:             - Value:           0x0000000000000001
+#CHECK:             - Value:           0x0000000000000003
+#CHECK:             - Value:           0x0000000000000060
+#CHECK:         - AbbrCode:        0x00000003
+#CHECK:           Values:          
+#CHECK:             - Value:           0x0000000000000002
+#CHECK:               BlockData:       
+#CHECK:                 - 0x91
+#CHECK:                 - 0x70
+#CHECK:             - Value:           0x0000000000000080
+#CHECK:             - Value:           0x0000000000000001
+#CHECK:             - Value:           0x0000000000000003
+#CHECK:             - Value:           0x0000000000000067
+#CHECK:         - AbbrCode:        0x00000000
+#CHECK:           Values:          
+#CHECK:         - AbbrCode:        0x00000004
+#CHECK:           Values:          
+#CHECK:             - Value:           0x0000000000000085
+#CHECK:             - Value:           0x0000000000000005
+#CHECK:             - Value:           0x0000000000000004
+#CHECK:         - AbbrCode:        0x00000005
+#CHECK:           Values:          
+#CHECK:             - Value:           0x000000000000006C
+#CHECK:         - AbbrCode:        0x00000005
+#CHECK:           Values:          
+#CHECK:             - Value:           0x0000000000000071
+#CHECK:         - AbbrCode:        0x00000004
+#CHECK:           Values:          
+#CHECK:             - Value:           0x0000000000000089
+#CHECK:             - Value:           0x0000000000000006
+#CHECK:             - Value:           0x0000000000000001
+#CHECK:         - AbbrCode:        0x00000000
+#CHECK:           Values:          

diff --git a/tools/obj2yaml/dwarf2yaml.cpp b/tools/obj2yaml/dwarf2yaml.cpp
index db34c37873a6b29c62699ec5d2c2a8958a2b2ebe..d41b44c0681080a2149721dc3cd93e02a42a0b9d 100644 (file)
--- a/tools/obj2yaml/dwarf2yaml.cpp
+++ b/tools/obj2yaml/dwarf2yaml.cpp
@@ -116,6 +116,8 @@ void dumpDebugInfo(DWARFContextInMemory &DCtx, DWARFYAML::Data &Y) {
     DWARFYAML::Unit NewUnit;
     NewUnit.Length.setLength(CU->getLength());
     NewUnit.Version = CU->getVersion();
+    if(NewUnit.Version >= 5)
+      NewUnit.Type = (dwarf::UnitType)CU->getUnitType();
     NewUnit.AbbrOffset = CU->getAbbreviations()->getOffset();
     NewUnit.AddrSize = CU->getAddressByteSize();
     for (auto DIE : CU->dies()) {