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1 //===-- MCAsmBackend.cpp - Target MC Assembly Backend ----------------------==//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #include "llvm/MC/MCAsmBackend.h"
11 #include "llvm/ADT/STLExtras.h"
12 #include "llvm/MC/MCFixupKindInfo.h"
13 using namespace llvm;
14 
MCAsmBackend()15 MCAsmBackend::MCAsmBackend()
16   : HasReliableSymbolDifference(false), HasDataInCodeSupport(false) {}
17 
~MCAsmBackend()18 MCAsmBackend::~MCAsmBackend() {}
19 
20 const MCFixupKindInfo &
getFixupKindInfo(MCFixupKind Kind) const21 MCAsmBackend::getFixupKindInfo(MCFixupKind Kind) const {
22   static const MCFixupKindInfo Builtins[] = {
23     { "FK_Data_1",  0,  8, 0 },
24     { "FK_Data_2",  0, 16, 0 },
25     { "FK_Data_4",  0, 32, 0 },
26     { "FK_Data_8",  0, 64, 0 },
27     { "FK_PCRel_1", 0,  8, MCFixupKindInfo::FKF_IsPCRel },
28     { "FK_PCRel_2", 0, 16, MCFixupKindInfo::FKF_IsPCRel },
29     { "FK_PCRel_4", 0, 32, MCFixupKindInfo::FKF_IsPCRel },
30     { "FK_PCRel_8", 0, 64, MCFixupKindInfo::FKF_IsPCRel },
31     { "FK_GPRel_1", 0,  8, 0 },
32     { "FK_GPRel_2", 0, 16, 0 },
33     { "FK_GPRel_4", 0, 32, 0 },
34     { "FK_GPRel_8", 0, 64, 0 },
35     { "FK_SecRel_1", 0,  8, 0 },
36     { "FK_SecRel_2", 0, 16, 0 },
37     { "FK_SecRel_4", 0, 32, 0 },
38     { "FK_SecRel_8", 0, 64, 0 }
39   };
40 
41   assert((size_t)Kind <= array_lengthof(Builtins) && "Unknown fixup kind");
42   return Builtins[Kind];
43 }
44