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Simplify. NFC. 

llvm-svn: 309141
This commit is contained in:
Rafael Espindola 2017-07-26 17:27:27 +00:00
parent 2fae2465c1
commit e06e4df8be
1 changed files with 117 additions and 179 deletions
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296
llvm/lib/Target/ARM/MCTargetDesc/ARMELFObjectWriter.cpp
View File

@ -78,7 +78,6 @@ unsigned ARMELFObjectWriter::GetRelocTypeInner(const MCValue &Target,
MCContext &Ctx) const {
MCSymbolRefExpr::VariantKind Modifier = Target.getAccessVariant();
unsigned Type = 0;
if (IsPCRel) {
switch ((unsigned)Fixup.getKind()) {
default:
@ -86,215 +85,154 @@ unsigned ARMELFObjectWriter::GetRelocTypeInner(const MCValue &Target,
return ELF::R_ARM_NONE;
case FK_Data_4:
switch (Modifier) {
default: llvm_unreachable("Unsupported Modifier");
default:
llvm_unreachable("Unsupported Modifier");
case MCSymbolRefExpr::VK_None:
Type = ELF::R_ARM_REL32;
break;
case MCSymbolRefExpr::VK_TLSGD:
llvm_unreachable("unimplemented");
return ELF::R_ARM_REL32;
case MCSymbolRefExpr::VK_GOTTPOFF:
Type = ELF::R_ARM_TLS_IE32;
break;
return ELF::R_ARM_TLS_IE32;
case MCSymbolRefExpr::VK_ARM_GOT_PREL:
Type = ELF::R_ARM_GOT_PREL;
break;
return ELF::R_ARM_GOT_PREL;
case MCSymbolRefExpr::VK_ARM_PREL31:
Type = ELF::R_ARM_PREL31;
break;
return ELF::R_ARM_PREL31;
}
break;
case ARM::fixup_arm_blx:
case ARM::fixup_arm_uncondbl:
switch (Modifier) {
case MCSymbolRefExpr::VK_PLT:
Type = ELF::R_ARM_CALL;
break;
return ELF::R_ARM_CALL;
case MCSymbolRefExpr::VK_TLSCALL:
Type = ELF::R_ARM_TLS_CALL;
break;
return ELF::R_ARM_TLS_CALL;
default:
Type = ELF::R_ARM_CALL;
break;
return ELF::R_ARM_CALL;
}
break;
case ARM::fixup_arm_condbl:
case ARM::fixup_arm_condbranch:
case ARM::fixup_arm_uncondbranch:
Type = ELF::R_ARM_JUMP24;
break;
return ELF::R_ARM_JUMP24;
case ARM::fixup_t2_condbranch:
Type = ELF::R_ARM_THM_JUMP19;
break;
return ELF::R_ARM_THM_JUMP19;
case ARM::fixup_t2_uncondbranch:
Type = ELF::R_ARM_THM_JUMP24;
break;
return ELF::R_ARM_THM_JUMP24;
case ARM::fixup_arm_movt_hi16:
Type = ELF::R_ARM_MOVT_PREL;
break;
return ELF::R_ARM_MOVT_PREL;
case ARM::fixup_arm_movw_lo16:
Type = ELF::R_ARM_MOVW_PREL_NC;
break;
return ELF::R_ARM_MOVW_PREL_NC;
case ARM::fixup_t2_movt_hi16:
Type = ELF::R_ARM_THM_MOVT_PREL;
break;
return ELF::R_ARM_THM_MOVT_PREL;
case ARM::fixup_t2_movw_lo16:
Type = ELF::R_ARM_THM_MOVW_PREL_NC;
break;
return ELF::R_ARM_THM_MOVW_PREL_NC;
case ARM::fixup_arm_thumb_br:
Type = ELF::R_ARM_THM_JUMP11;
break;
return ELF::R_ARM_THM_JUMP11;
case ARM::fixup_arm_thumb_bcc:
Type = ELF::R_ARM_THM_JUMP8;
break;
return ELF::R_ARM_THM_JUMP8;
case ARM::fixup_arm_thumb_bl:
case ARM::fixup_arm_thumb_blx:
switch (Modifier) {
case MCSymbolRefExpr::VK_TLSCALL:
Type = ELF::R_ARM_THM_TLS_CALL;
break;
return ELF::R_ARM_THM_TLS_CALL;
default:
Type = ELF::R_ARM_THM_CALL;
break;
return ELF::R_ARM_THM_CALL;
}
break;
}
} else {
switch ((unsigned)Fixup.getKind()) {
default:
Ctx.reportFatalError(Fixup.getLoc(), "unsupported relocation on symbol");
return ELF::R_ARM_NONE;
case FK_Data_1:
switch (Modifier) {
default: llvm_unreachable("unsupported Modifier");
case MCSymbolRefExpr::VK_None:
Type = ELF::R_ARM_ABS8;
break;
}
break;
case FK_Data_2:
switch (Modifier) {
default: llvm_unreachable("unsupported modifier");
case MCSymbolRefExpr::VK_None:
Type = ELF::R_ARM_ABS16;
break;
}
break;
case FK_Data_4:
switch (Modifier) {
default: llvm_unreachable("Unsupported Modifier");
case MCSymbolRefExpr::VK_ARM_NONE:
Type = ELF::R_ARM_NONE;
break;
case MCSymbolRefExpr::VK_GOT:
Type = ELF::R_ARM_GOT_BREL;
break;
case MCSymbolRefExpr::VK_TLSGD:
Type = ELF::R_ARM_TLS_GD32;
break;
case MCSymbolRefExpr::VK_TPOFF:
Type = ELF::R_ARM_TLS_LE32;
break;
case MCSymbolRefExpr::VK_GOTTPOFF:
Type = ELF::R_ARM_TLS_IE32;
break;
case MCSymbolRefExpr::VK_None:
Type = ELF::R_ARM_ABS32;
break;
case MCSymbolRefExpr::VK_GOTOFF:
Type = ELF::R_ARM_GOTOFF32;
break;
case MCSymbolRefExpr::VK_ARM_GOT_PREL:
Type = ELF::R_ARM_GOT_PREL;
break;
case MCSymbolRefExpr::VK_ARM_TARGET1:
Type = ELF::R_ARM_TARGET1;
break;
case MCSymbolRefExpr::VK_ARM_TARGET2:
Type = ELF::R_ARM_TARGET2;
break;
case MCSymbolRefExpr::VK_ARM_PREL31:
Type = ELF::R_ARM_PREL31;
break;
case MCSymbolRefExpr::VK_ARM_SBREL:
Type = ELF::R_ARM_SBREL32;
break;
case MCSymbolRefExpr::VK_ARM_TLSLDO:
Type = ELF::R_ARM_TLS_LDO32;
break;
case MCSymbolRefExpr::VK_TLSCALL:
Type = ELF::R_ARM_TLS_CALL;
break;
case MCSymbolRefExpr::VK_TLSDESC:
Type = ELF::R_ARM_TLS_GOTDESC;
break;
case MCSymbolRefExpr::VK_TLSLDM:
Type = ELF::R_ARM_TLS_LDM32;
break;
case MCSymbolRefExpr::VK_ARM_TLSDESCSEQ:
Type = ELF::R_ARM_TLS_DESCSEQ;
break;
}
break;
case ARM::fixup_arm_ldst_pcrel_12:
case ARM::fixup_arm_pcrel_10:
case ARM::fixup_arm_adr_pcrel_12:
case ARM::fixup_arm_thumb_bl:
case ARM::fixup_arm_thumb_cb:
case ARM::fixup_arm_thumb_cp:
case ARM::fixup_arm_thumb_br:
llvm_unreachable("Unimplemented");
case ARM::fixup_arm_condbranch:
case ARM::fixup_arm_uncondbranch:
Type = ELF::R_ARM_JUMP24;
break;
case ARM::fixup_arm_movt_hi16:
switch (Modifier) {
default: llvm_unreachable("Unsupported Modifier");
case MCSymbolRefExpr::VK_None:
Type = ELF::R_ARM_MOVT_ABS;
break;
case MCSymbolRefExpr::VK_ARM_SBREL:
Type = ELF:: R_ARM_MOVT_BREL;
break;
}
break;
case ARM::fixup_arm_movw_lo16:
switch (Modifier) {
default: llvm_unreachable("Unsupported Modifier");
case MCSymbolRefExpr::VK_None:
Type = ELF::R_ARM_MOVW_ABS_NC;
break;
case MCSymbolRefExpr::VK_ARM_SBREL:
Type = ELF:: R_ARM_MOVW_BREL_NC;
break;
}
break;
case ARM::fixup_t2_movt_hi16:
switch (Modifier) {
default: llvm_unreachable("Unsupported Modifier");
case MCSymbolRefExpr::VK_None:
Type = ELF::R_ARM_THM_MOVT_ABS;
break;
case MCSymbolRefExpr::VK_ARM_SBREL:
Type = ELF:: R_ARM_THM_MOVT_BREL;
break;
}
break;
case ARM::fixup_t2_movw_lo16:
switch (Modifier) {
default: llvm_unreachable("Unsupported Modifier");
case MCSymbolRefExpr::VK_None:
Type = ELF::R_ARM_THM_MOVW_ABS_NC;
break;
case MCSymbolRefExpr::VK_ARM_SBREL:
Type = ELF:: R_ARM_THM_MOVW_BREL_NC;
break;
}
break;
}
}
return Type;
switch ((unsigned)Fixup.getKind()) {
default:
Ctx.reportFatalError(Fixup.getLoc(), "unsupported relocation on symbol");
return ELF::R_ARM_NONE;
case FK_Data_1:
switch (Modifier) {
default:
llvm_unreachable("unsupported Modifier");
case MCSymbolRefExpr::VK_None:
return ELF::R_ARM_ABS8;
}
case FK_Data_2:
switch (Modifier) {
default:
llvm_unreachable("unsupported modifier");
case MCSymbolRefExpr::VK_None:
return ELF::R_ARM_ABS16;
}
case FK_Data_4:
switch (Modifier) {
default:
llvm_unreachable("Unsupported Modifier");
case MCSymbolRefExpr::VK_ARM_NONE:
return ELF::R_ARM_NONE;
case MCSymbolRefExpr::VK_GOT:
return ELF::R_ARM_GOT_BREL;
case MCSymbolRefExpr::VK_TLSGD:
return ELF::R_ARM_TLS_GD32;
case MCSymbolRefExpr::VK_TPOFF:
return ELF::R_ARM_TLS_LE32;
case MCSymbolRefExpr::VK_GOTTPOFF:
return ELF::R_ARM_TLS_IE32;
case MCSymbolRefExpr::VK_None:
return ELF::R_ARM_ABS32;
case MCSymbolRefExpr::VK_GOTOFF:
return ELF::R_ARM_GOTOFF32;
case MCSymbolRefExpr::VK_ARM_GOT_PREL:
return ELF::R_ARM_GOT_PREL;
case MCSymbolRefExpr::VK_ARM_TARGET1:
return ELF::R_ARM_TARGET1;
case MCSymbolRefExpr::VK_ARM_TARGET2:
return ELF::R_ARM_TARGET2;
case MCSymbolRefExpr::VK_ARM_PREL31:
return ELF::R_ARM_PREL31;
case MCSymbolRefExpr::VK_ARM_SBREL:
return ELF::R_ARM_SBREL32;
case MCSymbolRefExpr::VK_ARM_TLSLDO:
return ELF::R_ARM_TLS_LDO32;
case MCSymbolRefExpr::VK_TLSCALL:
return ELF::R_ARM_TLS_CALL;
case MCSymbolRefExpr::VK_TLSDESC:
return ELF::R_ARM_TLS_GOTDESC;
case MCSymbolRefExpr::VK_TLSLDM:
return ELF::R_ARM_TLS_LDM32;
case MCSymbolRefExpr::VK_ARM_TLSDESCSEQ:
return ELF::R_ARM_TLS_DESCSEQ;
}
case ARM::fixup_arm_condbranch:
case ARM::fixup_arm_uncondbranch:
return ELF::R_ARM_JUMP24;
case ARM::fixup_arm_movt_hi16:
switch (Modifier) {
default:
llvm_unreachable("Unsupported Modifier");
case MCSymbolRefExpr::VK_None:
return ELF::R_ARM_MOVT_ABS;
case MCSymbolRefExpr::VK_ARM_SBREL:
return ELF::R_ARM_MOVT_BREL;
}
case ARM::fixup_arm_movw_lo16:
switch (Modifier) {
default:
llvm_unreachable("Unsupported Modifier");
case MCSymbolRefExpr::VK_None:
return ELF::R_ARM_MOVW_ABS_NC;
case MCSymbolRefExpr::VK_ARM_SBREL:
return ELF::R_ARM_MOVW_BREL_NC;
}
case ARM::fixup_t2_movt_hi16:
switch (Modifier) {
default:
llvm_unreachable("Unsupported Modifier");
case MCSymbolRefExpr::VK_None:
return ELF::R_ARM_THM_MOVT_ABS;
case MCSymbolRefExpr::VK_ARM_SBREL:
return ELF::R_ARM_THM_MOVT_BREL;
}
case ARM::fixup_t2_movw_lo16:
switch (Modifier) {
default:
llvm_unreachable("Unsupported Modifier");
case MCSymbolRefExpr::VK_None:
return ELF::R_ARM_THM_MOVW_ABS_NC;
case MCSymbolRefExpr::VK_ARM_SBREL:
return ELF::R_ARM_THM_MOVW_BREL_NC;
}
}
}
MCObjectWriter *llvm::createARMELFObjectWriter(raw_pwrite_stream &OS,