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[PowerPC] Add some special @got@tprel fixup cases
When a target@got@tprel or target@got@tprel@l symbol variant is used in a fixup_ppc_half16 (*not* fixup_ppc_half16ds) context, we currently fail, since the corresponding R_PPC64_GOT_TPREL16 / R_PPC64_GOT_TPREL16_LO relocation types do not exist. However, since such symbol variants resolve to GOT offsets which are always 4-aligned, we can simply instead use the _DS variants of the relocation types, which *do* exist. The same applies for the @got@dtprel variants. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185700 91177308-0d34-0410-b5e6-96231b3b80d8
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@@ -228,9 +228,29 @@ unsigned PPCELFObjectWriter::getRelocTypeInner(const MCValue &Target,
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case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_HA:
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Type = ELF::R_PPC64_GOT_TLSLD16_HA;
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break;
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case MCSymbolRefExpr::VK_PPC_GOT_TPREL:
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/* We don't have R_PPC64_GOT_TPREL16, but since GOT offsets
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are always 4-aligned, we can use R_PPC64_GOT_TPREL16_DS. */
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Type = ELF::R_PPC64_GOT_TPREL16_DS;
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break;
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case MCSymbolRefExpr::VK_PPC_GOT_TPREL_LO:
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/* We don't have R_PPC64_GOT_TPREL16_LO, but since GOT offsets
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are always 4-aligned, we can use R_PPC64_GOT_TPREL16_LO_DS. */
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Type = ELF::R_PPC64_GOT_TPREL16_LO_DS;
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break;
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case MCSymbolRefExpr::VK_PPC_GOT_TPREL_HI:
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Type = ELF::R_PPC64_GOT_TPREL16_HI;
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break;
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case MCSymbolRefExpr::VK_PPC_GOT_DTPREL:
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/* We don't have R_PPC64_GOT_DTPREL16, but since GOT offsets
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are always 4-aligned, we can use R_PPC64_GOT_DTPREL16_DS. */
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Type = ELF::R_PPC64_GOT_DTPREL16_DS;
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break;
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case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_LO:
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/* We don't have R_PPC64_GOT_DTPREL16_LO, but since GOT offsets
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are always 4-aligned, we can use R_PPC64_GOT_DTPREL16_LO_DS. */
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Type = ELF::R_PPC64_GOT_DTPREL16_LO_DS;
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break;
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case MCSymbolRefExpr::VK_PPC_GOT_TPREL_HA:
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Type = ELF::R_PPC64_GOT_TPREL16_HA;
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break;
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