Add support for R_386_TLS_GD, R_386_TLS_LE_32, R_386_TLS_IE and R_386_TLS_LE.

llvm-svn: 117494

include/llvm/Support/ELF.h

@@ -232,10 +232,35 @@ enum {
   R_386_GOTOFF        = 9,
   R_386_GOTPC         = 10,
   R_386_32PLT         = 11,
+  R_386_TLS_TPOFF     = 14,
+  R_386_TLS_IE        = 15,
+  R_386_TLS_GOTIE     = 16,
+  R_386_TLS_LE        = 17,
+  R_386_TLS_GD        = 18,
+  R_386_TLS_LDM       = 19,
   R_386_16            = 20,
   R_386_PC16          = 21,
   R_386_8             = 22,
-  R_386_PC8           = 23
+  R_386_PC8           = 23,
+  R_386_TLS_GD_32     = 24,
+  R_386_TLS_GD_PUSH   = 25,
+  R_386_TLS_GD_CALL   = 26,
+  R_386_TLS_GD_POP    = 27,
+  R_386_TLS_LDM_32    = 28,
+  R_386_TLS_LDM_PUSH  = 29,
+  R_386_TLS_LDM_CALL  = 30,
+  R_386_TLS_LDM_POP   = 31,
+  R_386_TLS_LDO_32    = 32,
+  R_386_TLS_IE_32     = 33,
+  R_386_TLS_LE_32     = 34,
+  R_386_TLS_DTPMOD32  = 35,
+  R_386_TLS_DTPOFF32  = 36,
+  R_386_TLS_TPOFF32   = 37,
+  R_386_TLS_GOTDESC   = 39,
+  R_386_TLS_DESC_CALL = 40,
+  R_386_TLS_DESC      = 41,
+  R_386_IRELATIVE     = 42,
+  R_386_NUM           = 43
 };
 
 // Section header.

lib/MC/ELFObjectWriter.cpp

@@ -79,6 +79,7 @@ static bool isFixupKindX86PCRel(unsigned Kind) {
 }
 
 static bool RelocNeedsGOT(unsigned Type) {
+  // FIXME: Can we use the VariantKind?
   switch (Type) {
   default:
     return false;
@@ -88,6 +89,10 @@ static bool RelocNeedsGOT(unsigned Type) {
   case ELF::R_X86_64_TPOFF32:
   case ELF::R_X86_64_TLSGD:
   case ELF::R_X86_64_GOTTPOFF:
+  case ELF::R_386_TLS_GD:
+  case ELF::R_386_TLS_LE_32:
+  case ELF::R_386_TLS_IE:
+  case ELF::R_386_TLS_LE:
     return true;
   }
 }
@@ -766,6 +771,18 @@ void ELFObjectWriterImpl::RecordRelocation(const MCAssembler &Asm,
         case MCSymbolRefExpr::VK_GOTOFF:
           Type = ELF::R_386_GOTOFF;
           break;
+        case MCSymbolRefExpr::VK_TLSGD:
+          Type = ELF::R_386_TLS_GD;
+          break;
+        case MCSymbolRefExpr::VK_TPOFF:
+          Type = ELF::R_386_TLS_LE_32;
+          break;
+        case MCSymbolRefExpr::VK_INDNTPOFF:
+          Type = ELF::R_386_TLS_IE;
+          break;
+        case MCSymbolRefExpr::VK_NTPOFF:
+          Type = ELF::R_386_TLS_LE;
+          break;
         }
         break;
       case FK_Data_2: Type = ELF::R_386_16; break;

test/MC/ELF/relocation-386.s

@@ -50,6 +50,33 @@
 // CHECK-NEXT:  ('r_type', 0x00000003
 // CHECK-NEXT: ),
 
+// Relocation 5 (foo@TLSGD) is of type R_386_TLS_GD
+// CHECK-NEXT: # Relocation 0x00000005
+// CHECK-NEXT: (('r_offset', 0x00000020)
+// CHECK-NEXT:  ('r_sym', 0x0000000b)
+// CHECK-NEXT:  ('r_type', 0x00000012)
+// CHECK-NEXT: ),
+
+// Relocation 6 ($foo@TPOFF) is of type R_386_TLS_LE_32
+// CHECK-NEXT: # Relocation 0x00000006
+// CHECK-NEXT: (('r_offset', 0x00000025)
+// CHECK-NEXT:  ('r_sym', 0x0000000b)
+// CHECK-NEXT:  ('r_type', 0x00000022)
+// CHECK-NEXT: ),
+
+// Relocation 7 (foo@INDNTPOFF) is of type R_386_TLS_IE
+// CHECK-NEXT: # Relocation 0x00000007
+// CHECK-NEXT: (('r_offset', 0x0000002b)
+// CHECK-NEXT:  ('r_sym', 0x0000000b)
+// CHECK-NEXT:  ('r_type', 0x0000000f)
+// CHECK-NEXT: ),
+
+// Relocation 8 (foo@NTPOFF) is of type R_386_TLS_LE
+// CHECK-NEXT: # Relocation 0x00000008
+// CHECK-NEXT: (('r_offset', 0x00000031)
+// CHECK-NEXT:  ('r_sym', 0x0000000b)
+// CHECK-NEXT:  ('r_type', 0x00000011)
+
         .text
 bar:
 	leal	.Lfoo@GOTOFF(%ebx), %eax
@@ -66,6 +93,11 @@ bar2:
 
         movl	bar2j@GOT(%eax), %eax
 
+        leal foo@TLSGD(, %ebx,1), %eax
+        movl $foo@TPOFF, %edx
+        movl foo@INDNTPOFF, %ecx
+        addl foo@NTPOFF(%eax), %eax
+
         .section	.rodata.str1.16,"aMS",@progbits,1
 .Lfoo:
 	.asciz	 "bool llvm::llvm_start_multithreaded()"