[llvm] [XCOFF] print out symbol value name for llvm-readobj (PR #125861)

[zhijian lin via llvm-commits]

https://github.com/diggerlin created https://github.com/llvm/llvm-project/pull/125861

llvm-readobj print out symbol value name for xcoff symbol table

>From 72c3ef6d75b9face66f82ce794dd838fa341b11f Mon Sep 17 00:00:00 2001
From: zhijian <zhijian at ca.ibm.com>
Date: Wed, 5 Feb 2025 14:30:17 +0000
Subject: [PATCH] Symbol Value Name

---
 .../tools/llvm-readobj/XCOFF/symbols.test     | 105 ++++++++++++++++++
 llvm/tools/llvm-readobj/XCOFFDumper.cpp       |  10 +-
 2 files changed, 112 insertions(+), 3 deletions(-)

diff --git a/llvm/test/tools/llvm-readobj/XCOFF/symbols.test b/llvm/test/tools/llvm-readobj/XCOFF/symbols.test
index 71347a85f1ba55..f298210e9611fc 100644
--- a/llvm/test/tools/llvm-readobj/XCOFF/symbols.test
+++ b/llvm/test/tools/llvm-readobj/XCOFF/symbols.test
@@ -162,6 +162,48 @@ Symbols:
         SectionOrLength:        256
         StabInfoIndex:          44
         StabSectNum:            55
+  - Name:               .fun3
+    Value:              0x0
+    Section:            N_DEBUG
+    Type:               0x20
+    StorageClass:       C_WEAKEXT
+
+  - Name:              stsym
+    Value:              0x05
+    Section:            .text
+    Type:               0x00
+    StorageClass:       C_STSYM
+
+  - Name:              bincl
+    Value:              0x06
+    Section:            .text
+    Type:               0x00
+    StorageClass:       C_BINCL
+
+  - Name:              lsym
+    Value:              0x07
+    Section:            .text
+    Type:               0x00
+    StorageClass:       C_LSYM
+
+  - Name:              rsym
+    Value:              0x08
+    Section:            .text
+    Type:               0x00
+    StorageClass:       C_RSYM
+
+  - Name:              ecoml
+    Value:              0x09
+    Section:            .text
+    Type:               0x00
+    StorageClass:       C_ECOML
+
+  - Name:              cinfo
+    Value:              0x02
+    Section:            .text
+    Type:               0x00
+    StorageClass:       C_INFO
+
 
 # SYMBOL32:      Symbols [
 # SYMBOL32-NEXT:   Symbol {
@@ -368,4 +410,67 @@ Symbols:
 # SYMBOL32-NEXT:       StabSectNum: 0x37
 # SYMBOL32-NEXT:     }
 # SYMBOL32-NEXT:   }
+# SYMBOL32-NEXT:   Symbol {
+# SYMBOL32-NEXT:     Index: 25
+# SYMBOL32-NEXT:     Name: .fun3
+# SYMBOL32-NEXT:     Value (RelocatableAddress): 0x0
+# SYMBOL32-NEXT:     Section: N_DEBUG
+# SYMBOL32-NEXT:     Type: 0x20
+# SYMBOL32-NEXT:     StorageClass: C_WEAKEXT (0x6F)
+# SYMBOL32-NEXT:     NumberOfAuxEntries: 0
+# SYMBOL32-NEXT:   }
+# SYMBOL32-NEXT:   Symbol {
+# SYMBOL32-NEXT:     Index: 26
+# SYMBOL32-NEXT:     Name: Unimplemented Debug Name
+# SYMBOL32-NEXT:     Value (OffsetInCSect): 0x5
+# SYMBOL32-NEXT:     Section: .text
+# SYMBOL32-NEXT:     Type: 0x0
+# SYMBOL32-NEXT:     StorageClass: C_STSYM (0x85)
+# SYMBOL32-NEXT:     NumberOfAuxEntries: 0
+# SYMBOL32-NEXT:   }
+# SYMBOL32-NEXT:   Symbol {
+# SYMBOL32-NEXT:     Index: 27
+# SYMBOL32-NEXT:     Name: bincl
+# SYMBOL32-NEXT:     Value (OffsetInFile): 0x6
+# SYMBOL32-NEXT:     Section: .text
+# SYMBOL32-NEXT:     Type: 0x0
+# SYMBOL32-NEXT:     StorageClass: C_BINCL (0x6C)
+# SYMBOL32-NEXT:     NumberOfAuxEntries: 0
+# SYMBOL32-NEXT:   }
+# SYMBOL32-NEXT:   Symbol {
+# SYMBOL32-NEXT:     Index: 28
+# SYMBOL32-NEXT:     Name: Unimplemented Debug Name
+# SYMBOL32-NEXT:     Value (OffsetRelToStackFrame): 0x7
+# SYMBOL32-NEXT:     Section: .text
+# SYMBOL32-NEXT:     Type: 0x0
+# SYMBOL32-NEXT:     StorageClass: C_LSYM (0x81)
+# SYMBOL32-NEXT:     NumberOfAuxEntries: 0
+# SYMBOL32-NEXT:   }
+# SYMBOL32-NEXT:   Symbol {
+# SYMBOL32-NEXT:     Index: 29
+# SYMBOL32-NEXT:     Name: Unimplemented Debug Name
+# SYMBOL32-NEXT:     Value (RegisterNumber): 0x8
+# SYMBOL32-NEXT:     Section: .text
+# SYMBOL32-NEXT:     Type: 0x0
+# SYMBOL32-NEXT:     StorageClass: C_RSYM (0x83)
+# SYMBOL32-NEXT:     NumberOfAuxEntries: 0
+# SYMBOL32-NEXT:   }
+# SYMBOL32-NEXT:   Symbol {
+# SYMBOL32-NEXT:     Index: 30
+# SYMBOL32-NEXT:     Name: Unimplemented Debug Name
+# SYMBOL32-NEXT:     Value (OffsetInCommBlock): 0x9
+# SYMBOL32-NEXT:     Section: .text
+# SYMBOL32-NEXT:     Type: 0x0
+# SYMBOL32-NEXT:     StorageClass: C_ECOML (0x88)
+# SYMBOL32-NEXT:     NumberOfAuxEntries: 0
+# SYMBOL32-NEXT:   }
+# SYMBOL32-NEXT:   Symbol {
+# SYMBOL32-NEXT:     Index: 31
+# SYMBOL32-NEXT:     Name: cinfo
+# SYMBOL32-NEXT:     Value (OffsetInCommentSection): 0x2
+# SYMBOL32-NEXT:     Section: .text
+# SYMBOL32-NEXT:     Type: 0x0
+# SYMBOL32-NEXT:     StorageClass: C_INFO (0x6E)
+# SYMBOL32-NEXT:     NumberOfAuxEntries: 0
+# SYMBOL32-NEXT:   }
 # SYMBOL32-NEXT: ]
diff --git a/llvm/tools/llvm-readobj/XCOFFDumper.cpp b/llvm/tools/llvm-readobj/XCOFFDumper.cpp
index 6a099c08e1acad..03764e9ba483da 100644
--- a/llvm/tools/llvm-readobj/XCOFFDumper.cpp
+++ b/llvm/tools/llvm-readobj/XCOFFDumper.cpp
@@ -692,22 +692,26 @@ static StringRef GetSymbolValueName(XCOFF::StorageClass SC) {
   case XCOFF::C_BLOCK:
     return "Value (RelocatableAddress)";
   case XCOFF::C_FILE:
+  case XCOFF::C_BSTAT:
     return "Value (SymbolTableIndex)";
   case XCOFF::C_DWARF:
     return "Value (OffsetInDWARF)";
   case XCOFF::C_FUN:
   case XCOFF::C_STSYM:
+    return "Value (OffsetInCSect)";
   case XCOFF::C_BINCL:
   case XCOFF::C_EINCL:
+    return "Value (OffsetInFile)";
   case XCOFF::C_INFO:
-  case XCOFF::C_BSTAT:
+    return "Value (OffsetInCommentSection)";
   case XCOFF::C_LSYM:
   case XCOFF::C_PSYM:
+    return "Value (OffsetRelToStackFrame)";
   case XCOFF::C_RPSYM:
   case XCOFF::C_RSYM:
+    return "Value (RegisterNumber)";
   case XCOFF::C_ECOML:
-    assert(false && "This StorageClass for the symbol is not yet implemented.");
-    return "";
+    return "Value (OffsetInCommBlock)";
   default:
     return "Value";
   }