[llvm-readobj] dump auxiliary entries for the C_DWARF, C_BLOCK and C_FCN symbols.

[Esme]

Summary

This patch adds support for dumping C_DWARF, C_BLOCK and C_FCN symbols in llvm-readobj.

[Esme]

D113825 includes this patch's work.

llvm/include/llvm/Object/XCOFFObjectFile.h

 
 struct XCOFFSectAuxEntForStat {
   support::ubig32_t SectionLength;
   support::ubig16_t NumberOfRelocEnt;
   support::ubig16_t NumberOfLineNum;
   uint8_t Pad[10];
 };
 
+struct XCOFFSectAuxEntForDwarf32 {
+  support::ubig32_t PortionLength;
+  uint8_t ReservedZeros_1[4];
+  support::ubig32_t NumberOfRelocEnt;
+  uint8_t ReservedZeros_2[4];
+  uint8_t ReservedZeros_3[2];
+};
+
+struct XCOFFSectAuxEntForDwarf64 {
+  support::ubig64_t PortionLength;
+  support::ubig64_t NumberOfRelocEnt;
+  uint8_t ReservedZeros[1];
+  uint8_t AuxType; // Contains _AUX_SECT; Type of Auxillary entry
+};
+
+struct XCOFFBlockAuxEnt32 {
+  uint8_t ReservedZeros_1[2];
+  support::ubig16_t LineNum_Hi;
+  support::ubig16_t LineNum_Lo;
+  uint8_t ReservedZeros_2[12];
+};
+
+struct XCOFFBlockAuxEnt64 {
+  support::ubig32_t LineNum;
+  uint8_t ReservedZeros[13];
+  uint8_t AuxType; // Contains _AUX_SYM; Type of auxiliary entry
+};
+
 struct XCOFFRelocation32 {
   // Masks for packing/unpacking the r_rsize field of relocations.
 
   // The msb is used to indicate if the bits being relocated are signed or
   // unsigned.
   static constexpr uint8_t XR_SIGN_INDICATOR_MASK = 0x80;
 
   // The 2nd msb is used to indicate that the binder has replaced/modified the

llvm/test/tools/llvm-readobj/XCOFF/symbols-dwarf.test

+# This file tests the ability of llvm-readobj to display symbol entries 
+# with the StorageClass of C_DWARF for a 32-bit XCOFF object file.
+# The object file used is generated by the following source file
+# and command on AIX:
+#
+# > cat test8.c
+#
+# extern int i;
+# extern int TestforXcoff;
+# extern int fun(int i);
+# static int static_i;
+# char* p="abcd";
+# int fun1(int j) {
+#   static_i++;
+#   j++;
+#   j=j+*p;
+#   return j;
+# }
+#
+# int main() {
+#   i++;
+#   fun(i);
+#   return fun1(i);
+# }
+#
+# > clang -c test8.c -gdwarf-3 -o symbol-dwarf.o
+
+RUN: llvm-readobj --symbols %p/Inputs/symbol-dwarf.o | \
+RUN: FileCheck --check-prefix=SYMBOL32 %s
+
+SYMBOL32:      File: {{.*}}symbol-dwarf.o
+SYMBOL32-NEXT: Format: aixcoff-rs6000
+SYMBOL32-NEXT: Arch: powerpc
+SYMBOL32-NEXT: AddressSize: 32bit
+SYMBOL32-NEXT: Symbols [
+SYMBOL32-NEXT:   Symbol {
+SYMBOL32-NEXT:     Index: 0
+SYMBOL32-NEXT:     Name: .file
+SYMBOL32-NEXT:     Value (SymbolTableIndex): 0x0
+SYMBOL32-NEXT:     Section: N_DEBUG
+SYMBOL32-NEXT:     Source Language ID: TB_C (0x0)
+SYMBOL32-NEXT:     CPU Version ID: TCPU_COM (0x3)
+SYMBOL32-NEXT:     StorageClass: C_FILE (0x67)
+SYMBOL32-NEXT:     NumberOfAuxEntries: 1
+SYMBOL32-NEXT:     File Auxiliary Entry {
+SYMBOL32-NEXT:       Index: 1
+SYMBOL32-NEXT:       Name: 2.c
+SYMBOL32-NEXT:       Type: XFT_FN (0x0)
+SYMBOL32-NEXT:     }
+SYMBOL32-NEXT:   }
+SYMBOL32-NEXT:   Symbol {
+SYMBOL32-NEXT:     Index: 2
+SYMBOL32-NEXT:     Name: .fun
+SYMBOL32-NEXT:     Value (RelocatableAddress): 0x0
+SYMBOL32-NEXT:     Section: N_UNDEF
+SYMBOL32-NEXT:     Type: 0x0
+SYMBOL32-NEXT:     StorageClass: C_EXT (0x2)
+SYMBOL32-NEXT:     NumberOfAuxEntries: 1
+SYMBOL32-NEXT:     CSECT Auxiliary Entry {
+SYMBOL32-NEXT:       Index: 3
+SYMBOL32-NEXT:       SectionLen: 0
+SYMBOL32-NEXT:       ParameterHashIndex: 0x0
+SYMBOL32-NEXT:       TypeChkSectNum: 0x0
+SYMBOL32-NEXT:       SymbolAlignmentLog2: 0
+SYMBOL32-NEXT:       SymbolType: XTY_ER (0x0)
+SYMBOL32-NEXT:       StorageMappingClass: XMC_PR (0x0)
+SYMBOL32-NEXT:       StabInfoIndex: 0x0
+SYMBOL32-NEXT:       StabSectNum: 0x0
+SYMBOL32-NEXT:     }
+SYMBOL32-NEXT:   }
+SYMBOL32-NEXT:   Symbol {
+SYMBOL32-NEXT:     Index: 4
+SYMBOL32-NEXT:     Name: i
+SYMBOL32-NEXT:     Value (RelocatableAddress): 0x0
+SYMBOL32-NEXT:     Section: N_UNDEF
+SYMBOL32-NEXT:     Type: 0x0
+SYMBOL32-NEXT:     StorageClass: C_EXT (0x2)
+SYMBOL32-NEXT:     NumberOfAuxEntries: 1
+SYMBOL32-NEXT:     CSECT Auxiliary Entry {
+SYMBOL32-NEXT:       Index: 5
+SYMBOL32-NEXT:       SectionLen: 0
+SYMBOL32-NEXT:       ParameterHashIndex: 0x0
+SYMBOL32-NEXT:       TypeChkSectNum: 0x0
+SYMBOL32-NEXT:       SymbolAlignmentLog2: 0
+SYMBOL32-NEXT:       SymbolType: XTY_ER (0x0)
+SYMBOL32-NEXT:       StorageMappingClass: XMC_UA (0x4)
+SYMBOL32-NEXT:       StabInfoIndex: 0x0
+SYMBOL32-NEXT:       StabSectNum: 0x0
+SYMBOL32-NEXT:     }
+SYMBOL32-NEXT:   }
+SYMBOL32-NEXT:   Symbol {
+SYMBOL32-NEXT:     Index: 6
+SYMBOL32-NEXT:     Name: fun
+SYMBOL32-NEXT:     Value (RelocatableAddress): 0x0
+SYMBOL32-NEXT:     Section: N_UNDEF
+SYMBOL32-NEXT:     Type: 0x0
+SYMBOL32-NEXT:     StorageClass: C_EXT (0x2)
+SYMBOL32-NEXT:     NumberOfAuxEntries: 1
+SYMBOL32-NEXT:     CSECT Auxiliary Entry {
+SYMBOL32-NEXT:       Index: 7
+SYMBOL32-NEXT:       SectionLen: 0
+SYMBOL32-NEXT:       ParameterHashIndex: 0x0
+SYMBOL32-NEXT:       TypeChkSectNum: 0x0
+SYMBOL32-NEXT:       SymbolAlignmentLog2: 0
+SYMBOL32-NEXT:       SymbolType: XTY_ER (0x0)
+SYMBOL32-NEXT:       StorageMappingClass: XMC_DS (0xA)
+SYMBOL32-NEXT:       StabInfoIndex: 0x0
+SYMBOL32-NEXT:       StabSectNum: 0x0
+SYMBOL32-NEXT:     }
+SYMBOL32-NEXT:   }
+SYMBOL32-NEXT:   Symbol {
+SYMBOL32-NEXT:     Index: 8
+SYMBOL32-NEXT:     Name: .dwline
+SYMBOL32-NEXT:     Value (OffsetInDWARF): 0x0
+SYMBOL32-NEXT:     Section: .dwline
+SYMBOL32-NEXT:     Type: 0x0
+SYMBOL32-NEXT:     StorageClass: C_DWARF (0x70)
+SYMBOL32-NEXT:     NumberOfAuxEntries: 1
+SYMBOL32-NEXT:     Sect Auxiliary Entry For Dwarf {
+SYMBOL32-NEXT:       PortionLength: 276
+SYMBOL32-NEXT:       NumberOfRelocEnt: 0
+SYMBOL32-NEXT:     }
+SYMBOL32-NEXT:   }
+SYMBOL32-NEXT:   Symbol {
+SYMBOL32-NEXT:     Index: 10
+SYMBOL32-NEXT:     Name: .dwinfo
+SYMBOL32-NEXT:     Value (OffsetInDWARF): 0x0
+SYMBOL32-NEXT:     Section: .dwinfo
+SYMBOL32-NEXT:     Type: 0x0
+SYMBOL32-NEXT:     StorageClass: C_DWARF (0x70)
+SYMBOL32-NEXT:     NumberOfAuxEntries: 1
+SYMBOL32-NEXT:     Sect Auxiliary Entry For Dwarf {
+SYMBOL32-NEXT:       PortionLength: 153
+SYMBOL32-NEXT:       NumberOfRelocEnt: 0
+SYMBOL32-NEXT:     }
+SYMBOL32-NEXT:   }
+SYMBOL32-NEXT:   Symbol {
+SYMBOL32-NEXT:     Index: 12
+SYMBOL32-NEXT:     Name: .dwabrev
+SYMBOL32-NEXT:     Value (OffsetInDWARF): 0x0
+SYMBOL32-NEXT:     Section: .dwabrev
+SYMBOL32-NEXT:     Type: 0x0
+SYMBOL32-NEXT:     StorageClass: C_DWARF (0x70)
+SYMBOL32-NEXT:     NumberOfAuxEntries: 1
+SYMBOL32-NEXT:     Sect Auxiliary Entry For Dwarf {
+SYMBOL32-NEXT:       PortionLength: 129
+SYMBOL32-NEXT:       NumberOfRelocEnt: 0
+SYMBOL32-NEXT:     }
+SYMBOL32-NEXT:   }
+SYMBOL32-NEXT:   Symbol {
+SYMBOL32-NEXT:     Index: 14
+SYMBOL32-NEXT:     Name: .dwstr
+SYMBOL32-NEXT:     Value (OffsetInDWARF): 0x0
+SYMBOL32-NEXT:     Section: .dwstr
+SYMBOL32-NEXT:     Type: 0x0
+SYMBOL32-NEXT:     StorageClass: C_DWARF (0x70)
+SYMBOL32-NEXT:     NumberOfAuxEntries: 1
+SYMBOL32-NEXT:     Sect Auxiliary Entry For Dwarf {
+SYMBOL32-NEXT:       PortionLength: 207
+SYMBOL32-NEXT:       NumberOfRelocEnt: 0
+SYMBOL32-NEXT:     }
+SYMBOL32-NEXT:   }
+SYMBOL32-NEXT:   Symbol {
+SYMBOL32-NEXT:     Index: 16
+SYMBOL32-NEXT:     Name: .text
+SYMBOL32-NEXT:     Value (RelocatableAddress): 0x0
+SYMBOL32-NEXT:     Section: .text
+SYMBOL32-NEXT:     Type: 0x0
+SYMBOL32-NEXT:     StorageClass: C_HIDEXT (0x6B)
+SYMBOL32-NEXT:     NumberOfAuxEntries: 1
+SYMBOL32-NEXT:     CSECT Auxiliary Entry {
+SYMBOL32-NEXT:       Index: 17
+SYMBOL32-NEXT:       SectionLen: 215
+SYMBOL32-NEXT:       ParameterHashIndex: 0x0
+SYMBOL32-NEXT:       TypeChkSectNum: 0x0
+SYMBOL32-NEXT:       SymbolAlignmentLog2: 2
+SYMBOL32-NEXT:       SymbolType: XTY_SD (0x1)
+SYMBOL32-NEXT:       StorageMappingClass: XMC_PR (0x0)
+SYMBOL32-NEXT:       StabInfoIndex: 0x0
+SYMBOL32-NEXT:       StabSectNum: 0x0
+SYMBOL32-NEXT:     }
+SYMBOL32-NEXT:   }
+SYMBOL32-NEXT:   Symbol {
+SYMBOL32-NEXT:     Index: 18
+SYMBOL32-NEXT:     Name: .fun1
+SYMBOL32-NEXT:     Value (RelocatableAddress): 0x0
+SYMBOL32-NEXT:     Section: .text
+SYMBOL32-NEXT:     Type: 0x0
+SYMBOL32-NEXT:     StorageClass: C_EXT (0x2)
+SYMBOL32-NEXT:     NumberOfAuxEntries: 1
+SYMBOL32-NEXT:     CSECT Auxiliary Entry {
+SYMBOL32-NEXT:       Index: 19
+SYMBOL32-NEXT:       ContainingCsectSymbolIndex: 16
+SYMBOL32-NEXT:       ParameterHashIndex: 0x0
+SYMBOL32-NEXT:       TypeChkSectNum: 0x0
+SYMBOL32-NEXT:       SymbolAlignmentLog2: 0
+SYMBOL32-NEXT:       SymbolType: XTY_LD (0x2)
+SYMBOL32-NEXT:       StorageMappingClass: XMC_PR (0x0)
+SYMBOL32-NEXT:       StabInfoIndex: 0x0
+SYMBOL32-NEXT:       StabSectNum: 0x0
+SYMBOL32-NEXT:     }
+SYMBOL32-NEXT:   }
+SYMBOL32-NEXT:   Symbol {
+SYMBOL32-NEXT:     Index: 20
+SYMBOL32-NEXT:     Name: .main
+SYMBOL32-NEXT:     Value (RelocatableAddress): 0x60
+SYMBOL32-NEXT:     Section: .text
+SYMBOL32-NEXT:     Type: 0x0
+SYMBOL32-NEXT:     StorageClass: C_EXT (0x2)
+SYMBOL32-NEXT:     NumberOfAuxEntries: 1
+SYMBOL32-NEXT:     CSECT Auxiliary Entry {
+SYMBOL32-NEXT:       Index: 21
+SYMBOL32-NEXT:       ContainingCsectSymbolIndex: 16
+SYMBOL32-NEXT:       ParameterHashIndex: 0x0
+SYMBOL32-NEXT:       TypeChkSectNum: 0x0
+SYMBOL32-NEXT:       SymbolAlignmentLog2: 0
+SYMBOL32-NEXT:       SymbolType: XTY_LD (0x2)
+SYMBOL32-NEXT:       StorageMappingClass: XMC_PR (0x0)
+SYMBOL32-NEXT:       StabInfoIndex: 0x0
+SYMBOL32-NEXT:       StabSectNum: 0x0
+SYMBOL32-NEXT:     }
+SYMBOL32-NEXT:   }
+SYMBOL32-NEXT:   Symbol {
+SYMBOL32-NEXT:     Index: 22
+SYMBOL32-NEXT:     Name: .rodata.str1.1L...str
+SYMBOL32-NEXT:     Value (RelocatableAddress): 0xD8
+SYMBOL32-NEXT:     Section: .text
+SYMBOL32-NEXT:     Type: 0x0
+SYMBOL32-NEXT:     StorageClass: C_HIDEXT (0x6B)
+SYMBOL32-NEXT:     NumberOfAuxEntries: 1
+SYMBOL32-NEXT:     CSECT Auxiliary Entry {
+SYMBOL32-NEXT:       Index: 23
+SYMBOL32-NEXT:       SectionLen: 5
+SYMBOL32-NEXT:       ParameterHashIndex: 0x0
+SYMBOL32-NEXT:       TypeChkSectNum: 0x0
+SYMBOL32-NEXT:       SymbolAlignmentLog2: 2
+SYMBOL32-NEXT:       SymbolType: XTY_SD (0x1)
+SYMBOL32-NEXT:       StorageMappingClass: XMC_RO (0x1)
+SYMBOL32-NEXT:       StabInfoIndex: 0x0
+SYMBOL32-NEXT:       StabSectNum: 0x0
+SYMBOL32-NEXT:     }
+SYMBOL32-NEXT:   }
+SYMBOL32-NEXT:   Symbol {
+SYMBOL32-NEXT:     Index: 24
+SYMBOL32-NEXT:     Name: fun1
+SYMBOL32-NEXT:     Value (RelocatableAddress): 0xE0
+SYMBOL32-NEXT:     Section: .data
+SYMBOL32-NEXT:     Type: 0x0
+SYMBOL32-NEXT:     StorageClass: C_EXT (0x2)
+SYMBOL32-NEXT:     NumberOfAuxEntries: 1
+SYMBOL32-NEXT:     CSECT Auxiliary Entry {
+SYMBOL32-NEXT:       Index: 25
+SYMBOL32-NEXT:       SectionLen: 12
+SYMBOL32-NEXT:       ParameterHashIndex: 0x0
+SYMBOL32-NEXT:       TypeChkSectNum: 0x0
+SYMBOL32-NEXT:       SymbolAlignmentLog2: 2
+SYMBOL32-NEXT:       SymbolType: XTY_SD (0x1)
+SYMBOL32-NEXT:       StorageMappingClass: XMC_DS (0xA)
+SYMBOL32-NEXT:       StabInfoIndex: 0x0
+SYMBOL32-NEXT:       StabSectNum: 0x0
+SYMBOL32-NEXT:     }
+SYMBOL32-NEXT:   }
+SYMBOL32-NEXT:   Symbol {
+SYMBOL32-NEXT:     Index: 26
+SYMBOL32-NEXT:     Name: main
+SYMBOL32-NEXT:     Value (RelocatableAddress): 0xEC
+SYMBOL32-NEXT:     Section: .data
+SYMBOL32-NEXT:     Type: 0x0
+SYMBOL32-NEXT:     StorageClass: C_EXT (0x2)
+SYMBOL32-NEXT:     NumberOfAuxEntries: 1
+SYMBOL32-NEXT:     CSECT Auxiliary Entry {
+SYMBOL32-NEXT:       Index: 27
+SYMBOL32-NEXT:       SectionLen: 12
+SYMBOL32-NEXT:       ParameterHashIndex: 0x0
+SYMBOL32-NEXT:       TypeChkSectNum: 0x0
+SYMBOL32-NEXT:       SymbolAlignmentLog2: 2
+SYMBOL32-NEXT:       SymbolType: XTY_SD (0x1)
+SYMBOL32-NEXT:       StorageMappingClass: XMC_DS (0xA)
+SYMBOL32-NEXT:       StabInfoIndex: 0x0
+SYMBOL32-NEXT:       StabSectNum: 0x0
+SYMBOL32-NEXT:     }
+SYMBOL32-NEXT:   }
+SYMBOL32-NEXT:   Symbol {
+SYMBOL32-NEXT:     Index: 28
+SYMBOL32-NEXT:     Name: p
+SYMBOL32-NEXT:     Value (RelocatableAddress): 0xF8
+SYMBOL32-NEXT:     Section: .data
+SYMBOL32-NEXT:     Type: 0x0
+SYMBOL32-NEXT:     StorageClass: C_EXT (0x2)
+SYMBOL32-NEXT:     NumberOfAuxEntries: 1
+SYMBOL32-NEXT:     CSECT Auxiliary Entry {
+SYMBOL32-NEXT:       Index: 29
+SYMBOL32-NEXT:       SectionLen: 4
+SYMBOL32-NEXT:       ParameterHashIndex: 0x0
+SYMBOL32-NEXT:       TypeChkSectNum: 0x0
+SYMBOL32-NEXT:       SymbolAlignmentLog2: 2
+SYMBOL32-NEXT:       SymbolType: XTY_SD (0x1)
+SYMBOL32-NEXT:       StorageMappingClass: XMC_RW (0x5)
+SYMBOL32-NEXT:       StabInfoIndex: 0x0
+SYMBOL32-NEXT:       StabSectNum: 0x0
+SYMBOL32-NEXT:     }
+SYMBOL32-NEXT:   }
+SYMBOL32-NEXT:   Symbol {
+SYMBOL32-NEXT:     Index: 30
+SYMBOL32-NEXT:     Name: TOC
+SYMBOL32-NEXT:     Value (RelocatableAddress): 0xFC
+SYMBOL32-NEXT:     Section: .data
+SYMBOL32-NEXT:     Type: 0x0
+SYMBOL32-NEXT:     StorageClass: C_HIDEXT (0x6B)
+SYMBOL32-NEXT:     NumberOfAuxEntries: 1
+SYMBOL32-NEXT:     CSECT Auxiliary Entry {
+SYMBOL32-NEXT:       Index: 31
+SYMBOL32-NEXT:       SectionLen: 0
+SYMBOL32-NEXT:       ParameterHashIndex: 0x0
+SYMBOL32-NEXT:       TypeChkSectNum: 0x0
+SYMBOL32-NEXT:       SymbolAlignmentLog2: 2
+SYMBOL32-NEXT:       SymbolType: XTY_SD (0x1)
+SYMBOL32-NEXT:       StorageMappingClass: XMC_TC0 (0xF)
+SYMBOL32-NEXT:       StabInfoIndex: 0x0
+SYMBOL32-NEXT:       StabSectNum: 0x0
+SYMBOL32-NEXT:     }
+SYMBOL32-NEXT:   }
+SYMBOL32-NEXT:   Symbol {
+SYMBOL32-NEXT:     Index: 32
+SYMBOL32-NEXT:     Name: static_i
+SYMBOL32-NEXT:     Value (RelocatableAddress): 0xFC
+SYMBOL32-NEXT:     Section: .data
+SYMBOL32-NEXT:     Type: 0x0
+SYMBOL32-NEXT:     StorageClass: C_HIDEXT (0x6B)
+SYMBOL32-NEXT:     NumberOfAuxEntries: 1
+SYMBOL32-NEXT:     CSECT Auxiliary Entry {
+SYMBOL32-NEXT:       Index: 33
+SYMBOL32-NEXT:       SectionLen: 4
+SYMBOL32-NEXT:       ParameterHashIndex: 0x0
+SYMBOL32-NEXT:       TypeChkSectNum: 0x0
+SYMBOL32-NEXT:       SymbolAlignmentLog2: 2
+SYMBOL32-NEXT:       SymbolType: XTY_SD (0x1)
+SYMBOL32-NEXT:       StorageMappingClass: XMC_TC (0x3)
+SYMBOL32-NEXT:       StabInfoIndex: 0x0
+SYMBOL32-NEXT:       StabSectNum: 0x0
+SYMBOL32-NEXT:     }
+SYMBOL32-NEXT:   }
+SYMBOL32-NEXT:   Symbol {
+SYMBOL32-NEXT:     Index: 34
+SYMBOL32-NEXT:     Name: p
+SYMBOL32-NEXT:     Value (RelocatableAddress): 0x100
+SYMBOL32-NEXT:     Section: .data
+SYMBOL32-NEXT:     Type: 0x0
+SYMBOL32-NEXT:     StorageClass: C_HIDEXT (0x6B)
+SYMBOL32-NEXT:     NumberOfAuxEntries: 1
+SYMBOL32-NEXT:     CSECT Auxiliary Entry {
+SYMBOL32-NEXT:       Index: 35
+SYMBOL32-NEXT:       SectionLen: 4
+SYMBOL32-NEXT:       ParameterHashIndex: 0x0
+SYMBOL32-NEXT:       TypeChkSectNum: 0x0
+SYMBOL32-NEXT:       SymbolAlignmentLog2: 2
+SYMBOL32-NEXT:       SymbolType: XTY_SD (0x1)
+SYMBOL32-NEXT:       StorageMappingClass: XMC_TC (0x3)
+SYMBOL32-NEXT:       StabInfoIndex: 0x0
+SYMBOL32-NEXT:       StabSectNum: 0x0
+SYMBOL32-NEXT:     }
+SYMBOL32-NEXT:   }
+SYMBOL32-NEXT:   Symbol {
+SYMBOL32-NEXT:     Index: 36
+SYMBOL32-NEXT:     Name: i
+SYMBOL32-NEXT:     Value (RelocatableAddress): 0x104
+SYMBOL32-NEXT:     Section: .data
+SYMBOL32-NEXT:     Type: 0x0
+SYMBOL32-NEXT:     StorageClass: C_HIDEXT (0x6B)
+SYMBOL32-NEXT:     NumberOfAuxEntries: 1
+SYMBOL32-NEXT:     CSECT Auxiliary Entry {
+SYMBOL32-NEXT:       Index: 37
+SYMBOL32-NEXT:       SectionLen: 4
+SYMBOL32-NEXT:       ParameterHashIndex: 0x0
+SYMBOL32-NEXT:       TypeChkSectNum: 0x0
+SYMBOL32-NEXT:       SymbolAlignmentLog2: 2
+SYMBOL32-NEXT:       SymbolType: XTY_SD (0x1)
+SYMBOL32-NEXT:       StorageMappingClass: XMC_TC (0x3)
+SYMBOL32-NEXT:       StabInfoIndex: 0x0
+SYMBOL32-NEXT:       StabSectNum: 0x0
+SYMBOL32-NEXT:     }
+SYMBOL32-NEXT:   }
+SYMBOL32-NEXT:   Symbol {
+SYMBOL32-NEXT:     Index: 38
+SYMBOL32-NEXT:     Name: static_i
+SYMBOL32-NEXT:     Value (RelocatableAddress): 0x108
+SYMBOL32-NEXT:     Section: .bss
+SYMBOL32-NEXT:     Type: 0x0
+SYMBOL32-NEXT:     StorageClass: C_HIDEXT (0x6B)
+SYMBOL32-NEXT:     NumberOfAuxEntries: 1
+SYMBOL32-NEXT:     CSECT Auxiliary Entry {
+SYMBOL32-NEXT:       Index: 39
+SYMBOL32-NEXT:       SectionLen: 4
+SYMBOL32-NEXT:       ParameterHashIndex: 0x0
+SYMBOL32-NEXT:       TypeChkSectNum: 0x0
+SYMBOL32-NEXT:       SymbolAlignmentLog2: 2
+SYMBOL32-NEXT:       SymbolType: XTY_CM (0x3)
+SYMBOL32-NEXT:       StorageMappingClass: XMC_BS (0x9)
+SYMBOL32-NEXT:       StabInfoIndex: 0x0
+SYMBOL32-NEXT:       StabSectNum: 0x0
+SYMBOL32-NEXT:     }
+SYMBOL32-NEXT:   }
+SYMBOL32-NEXT: ]

llvm/tools/llvm-readobj/XCOFFDumper.cpp

 
 private:
   template <typename T> void printSectionHeaders(ArrayRef<T> Sections);
   template <typename T> void printGenericSectionHeader(T &Sec) const;
   template <typename T> void printOverflowSectionHeader(T &Sec) const;
   void printFileAuxEnt(const XCOFFFileAuxEnt *AuxEntPtr);
   void printCsectAuxEnt32(const XCOFFCsectAuxEnt32 *AuxEntPtr);
   void printSectAuxEntForStat(const XCOFFSectAuxEntForStat *AuxEntPtr);
+  void printSectAuxEntForDwarf32(const XCOFFSectAuxEntForDwarf32 *AuxEntPtr);
+  void printBlockAuxEnt32(const XCOFFBlockAuxEnt32 *AuxEntPtr);
   void printSymbol(const SymbolRef &);
   void printRelocations(ArrayRef<XCOFFSectionHeader32> Sections);
   const XCOFFObjectFile &Obj;
 };
 } // anonymous namespace
 
 void XCOFFDumper::printFileHeaders() {
   DictScope DS(W, "FileHeader");
void XCOFFDumper::printSectAuxEntForStat(
   W.printNumber("SectionLength", AuxEntPtr->SectionLength);
 
   // Unlike the corresponding fields in the section header, NumberOfRelocEnt
   // and NumberOfLineNum do not handle values greater than 65535.
   W.printNumber("NumberOfRelocEnt", AuxEntPtr->NumberOfRelocEnt);
   W.printNumber("NumberOfLineNum", AuxEntPtr->NumberOfLineNum);
 }
 
+void XCOFFDumper::printSectAuxEntForDwarf32(
+    const XCOFFSectAuxEntForDwarf32 *AuxEntPtr) {
+  assert(!Obj.is64Bit() && "32-bit interface called on 64-bit object file.");
+
+  DictScope SymDs(W, "Sect Auxiliary Entry For Dwarf");
+  W.printNumber("PortionLength", AuxEntPtr->PortionLength);
+  W.printNumber("NumberOfRelocEnt", AuxEntPtr->NumberOfRelocEnt);
+}
+
+void XCOFFDumper::printBlockAuxEnt32(const XCOFFBlockAuxEnt32 *AuxEntPtr) {
+  assert(!Obj.is64Bit() && "32-bit interface called on 64-bit object file.");
+
+  DictScope SymDs(W, "Block Auxiliary Entry");
+  W.printNumber("LineNumber_High16", AuxEntPtr->LineNum_Hi);
+  W.printNumber("LineNumber_Low16", AuxEntPtr->LineNum_Lo);
+}
+
 static const EnumEntry<XCOFF::StorageClass> SymStorageClass[] = {
 #define ECase(X)                                                               \
   { #X, XCOFF::X }
     ECase(C_NULL),  ECase(C_AUTO),    ECase(C_EXT),     ECase(C_STAT),
     ECase(C_REG),   ECase(C_EXTDEF),  ECase(C_LABEL),   ECase(C_ULABEL),
     ECase(C_MOS),   ECase(C_ARG),     ECase(C_STRTAG),  ECase(C_MOU),
     ECase(C_UNTAG), ECase(C_TPDEF),   ECase(C_USTATIC), ECase(C_ENTAG),
     ECase(C_MOE),   ECase(C_REGPARM), ECase(C_FIELD),   ECase(C_BLOCK),

 };
 
 static StringRef GetSymbolValueName(XCOFF::StorageClass SC) {
   switch (SC) {
   case XCOFF::C_EXT:
   case XCOFF::C_WEAKEXT:
   case XCOFF::C_HIDEXT:
   case XCOFF::C_STAT:
+  case XCOFF::C_FCN:
+  case XCOFF::C_BLOCK:
     return "Value (RelocatableAddress)";
   case XCOFF::C_FILE:
     return "Value (SymbolTableIndex)";
-  case XCOFF::C_FCN:
-  case XCOFF::C_BLOCK:
+  case XCOFF::C_DWARF:
+    return "Value (OffsetInDWARF)";
   case XCOFF::C_FUN:
   case XCOFF::C_STSYM:
   case XCOFF::C_BINCL:
   case XCOFF::C_EINCL:
   case XCOFF::C_INFO:
   case XCOFF::C_BSTAT:
   case XCOFF::C_LSYM:
   case XCOFF::C_PSYM:
   case XCOFF::C_RPSYM:
   case XCOFF::C_RSYM:
   case XCOFF::C_ECOML:
-  case XCOFF::C_DWARF:
     assert(false && "This StorageClass for the symbol is not yet implemented.");
     return "";
   default:
     return "Value";
   }
 }
 
 static const EnumEntry<XCOFF::CFileLangId> CFileLangIdClass[] = {
case XCOFF::C_STAT:
     StatAuxEntPtr =
         reinterpret_cast<const XCOFFSectAuxEntForStat *>(SymbolEntPtr + 1);
 #ifndef NDEBUG
     Obj.checkSymbolEntryPointer(reinterpret_cast<uintptr_t>(StatAuxEntPtr));
 #endif
     printSectAuxEntForStat(StatAuxEntPtr);
     break;
   case XCOFF::C_DWARF:
+    if (NumberOfAuxEntries > 1)
+      report_fatal_error(
+          "C_DWARF symbol should not have more than 1 auxiliary entry.");
+
+    const XCOFFSectAuxEntForDwarf32 *DwarfAuxEntPtr;
+    DwarfAuxEntPtr =
+        reinterpret_cast<const XCOFFSectAuxEntForDwarf32 *>(SymbolEntPtr + 1);
+#ifndef NDEBUG
+    Obj.checkSymbolEntryPointer(reinterpret_cast<uintptr_t>(DwarfAuxEntPtr));
+#endif
+    printSectAuxEntForDwarf32(DwarfAuxEntPtr);
+    break;
   case XCOFF::C_BLOCK:
   case XCOFF::C_FCN:
-    report_fatal_error("Symbol table entry printing for this storage class "
-                       "type is unimplemented.");
+    // The Block Auxiliary Entry provides information associated with the begin
+    // and end blocks of functions.
+    for (int i = 1; i <= NumberOfAuxEntries; ++i) {
+      const XCOFFBlockAuxEnt32 *BlockAuxEntPtr =
+          reinterpret_cast<const XCOFFBlockAuxEnt32 *>(SymbolEntPtr + i);
+#ifndef NDEBUG
+      Obj.checkSymbolEntryPointer(reinterpret_cast<uintptr_t>(BlockAuxEntPtr));
+#endif
+      printBlockAuxEnt32(BlockAuxEntPtr);
+    }
     break;
   default:
     for (int i = 1; i <= NumberOfAuxEntries; i++) {
       W.startLine() << "!Unexpected raw auxiliary entry data:\n";
       W.startLine() << format_bytes(
           ArrayRef<uint8_t>(reinterpret_cast<const uint8_t *>(SymbolEntPtr + i),
                             XCOFF::SymbolTableEntrySize));
     }