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//===-- RISCVMCExpr.cpp - RISC-V specific MC expression classes -----------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file contains the implementation of the assembly expression modifiers
// accepted by the RISC-V architecture (e.g. ":lo12:", ":gottprel_g1:", ...).
//
//===----------------------------------------------------------------------===//
#include "MCTargetDesc/RISCVAsmBackend.h"
#include "MCTargetDesc/RISCVMCAsmInfo.h"
#include "llvm/BinaryFormat/ELF.h"
#include "llvm/Support/ErrorHandling.h"
using namespace llvm;
#define DEBUG_TYPE "riscvmcexpr"
RISCV::Specifier RISCV::parseSpecifierName(StringRef name) {
return StringSwitch<RISCV::Specifier>(name)
.Case("lo", RISCV::S_LO)
.Case("hi", ELF::R_RISCV_HI20)
.Case("pcrel_lo", RISCV::S_PCREL_LO)
.Case("pcrel_hi", ELF::R_RISCV_PCREL_HI20)
.Case("got_pcrel_hi", ELF::R_RISCV_GOT_HI20)
.Case("tprel_lo", RISCV::S_TPREL_LO)
.Case("tprel_hi", ELF::R_RISCV_TPREL_HI20)
.Case("tprel_add", ELF::R_RISCV_TPREL_ADD)
.Case("tls_ie_pcrel_hi", ELF::R_RISCV_TLS_GOT_HI20)
.Case("tls_gd_pcrel_hi", ELF::R_RISCV_TLS_GD_HI20)
.Case("tlsdesc_hi", ELF::R_RISCV_TLSDESC_HI20)
.Case("tlsdesc_load_lo", ELF::R_RISCV_TLSDESC_LOAD_LO12)
.Case("tlsdesc_add_lo", ELF::R_RISCV_TLSDESC_ADD_LO12)
.Case("tlsdesc_call", ELF::R_RISCV_TLSDESC_CALL)
.Case("qc.abs20", RISCV::S_QC_ABS20)
// Used in data directives
.Case("pltpcrel", ELF::R_RISCV_PLT32)
.Case("gotpcrel", ELF::R_RISCV_GOT32_PCREL)
.Default(0);
}
StringRef RISCV::getSpecifierName(Specifier S) {
switch (S) {
case RISCV::S_None:
llvm_unreachable("not used as %specifier()");
case RISCV::S_LO:
return "lo";
case ELF::R_RISCV_HI20:
return "hi";
case RISCV::S_PCREL_LO:
return "pcrel_lo";
case ELF::R_RISCV_PCREL_HI20:
return "pcrel_hi";
case ELF::R_RISCV_GOT_HI20:
return "got_pcrel_hi";
case RISCV::S_TPREL_LO:
return "tprel_lo";
case ELF::R_RISCV_TPREL_HI20:
return "tprel_hi";
case ELF::R_RISCV_TPREL_ADD:
return "tprel_add";
case ELF::R_RISCV_TLS_GOT_HI20:
return "tls_ie_pcrel_hi";
case ELF::R_RISCV_TLSDESC_HI20:
return "tlsdesc_hi";
case ELF::R_RISCV_TLSDESC_LOAD_LO12:
return "tlsdesc_load_lo";
case ELF::R_RISCV_TLSDESC_ADD_LO12:
return "tlsdesc_add_lo";
case ELF::R_RISCV_TLSDESC_CALL:
return "tlsdesc_call";
case ELF::R_RISCV_TLS_GD_HI20:
return "tls_gd_pcrel_hi";
case ELF::R_RISCV_CALL_PLT:
return "call_plt";
case ELF::R_RISCV_32_PCREL:
return "32_pcrel";
case ELF::R_RISCV_GOT32_PCREL:
return "gotpcrel";
case ELF::R_RISCV_PLT32:
return "pltpcrel";
case RISCV::S_QC_ABS20:
return "qc.abs20";
}
llvm_unreachable("Invalid ELF symbol kind");
}
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