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Add support for R_386_TLS_GD, R_386_TLS_LE_32, R_386_TLS_IE and R_386_TLS_LE.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117494 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2010-10-27 21:23:52 +00:00
parent 529b1a4398
commit 3cede2d0b2
3 changed files with 75 additions and 1 deletions
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27
include/llvm/Support/ELF.h
View File

@ -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.

17
lib/MC/ELFObjectWriter.cpp
View File

@ -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;

32
test/MC/ELF/relocation-386.s
View File

@ -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()"