1 //===- ELFYAML.cpp - ELF YAMLIO implementation ----------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file defines classes for handling the YAML representation of ELF.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #include "llvm/ObjectYAML/ELFYAML.h"
14 #include "llvm/ADT/MapVector.h"
15 #include "llvm/ADT/StringRef.h"
16 #include "llvm/BinaryFormat/ELF.h"
17 #include "llvm/Support/ARMEHABI.h"
18 #include "llvm/Support/Casting.h"
19 #include "llvm/Support/ErrorHandling.h"
20 #include "llvm/Support/MipsABIFlags.h"
21 #include "llvm/Support/YAMLTraits.h"
22 #include "llvm/Support/WithColor.h"
23 #include <cassert>
24 #include <cstdint>
25 
26 namespace llvm {
27 
28 ELFYAML::Chunk::~Chunk() = default;
29 
30 namespace ELFYAML {
31 unsigned Object::getMachine() const {
32   if (Header.Machine)
33     return *Header.Machine;
34   return llvm::ELF::EM_NONE;
35 }
36 } // namespace ELFYAML
37 
38 namespace yaml {
39 
40 void ScalarEnumerationTraits<ELFYAML::ELF_ET>::enumeration(
41     IO &IO, ELFYAML::ELF_ET &Value) {
42 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
43   ECase(ET_NONE);
44   ECase(ET_REL);
45   ECase(ET_EXEC);
46   ECase(ET_DYN);
47   ECase(ET_CORE);
48 #undef ECase
49   IO.enumFallback<Hex16>(Value);
50 }
51 
52 void ScalarEnumerationTraits<ELFYAML::ELF_PT>::enumeration(
53     IO &IO, ELFYAML::ELF_PT &Value) {
54 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
55   ECase(PT_NULL);
56   ECase(PT_LOAD);
57   ECase(PT_DYNAMIC);
58   ECase(PT_INTERP);
59   ECase(PT_NOTE);
60   ECase(PT_SHLIB);
61   ECase(PT_PHDR);
62   ECase(PT_TLS);
63   ECase(PT_GNU_EH_FRAME);
64   ECase(PT_GNU_STACK);
65   ECase(PT_GNU_RELRO);
66   ECase(PT_GNU_PROPERTY);
67 #undef ECase
68   IO.enumFallback<Hex32>(Value);
69 }
70 
71 void ScalarEnumerationTraits<ELFYAML::ELF_EM>::enumeration(
72     IO &IO, ELFYAML::ELF_EM &Value) {
73 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
74   ECase(EM_NONE);
75   ECase(EM_M32);
76   ECase(EM_SPARC);
77   ECase(EM_386);
78   ECase(EM_68K);
79   ECase(EM_88K);
80   ECase(EM_IAMCU);
81   ECase(EM_860);
82   ECase(EM_MIPS);
83   ECase(EM_S370);
84   ECase(EM_MIPS_RS3_LE);
85   ECase(EM_PARISC);
86   ECase(EM_VPP500);
87   ECase(EM_SPARC32PLUS);
88   ECase(EM_960);
89   ECase(EM_PPC);
90   ECase(EM_PPC64);
91   ECase(EM_S390);
92   ECase(EM_SPU);
93   ECase(EM_V800);
94   ECase(EM_FR20);
95   ECase(EM_RH32);
96   ECase(EM_RCE);
97   ECase(EM_ARM);
98   ECase(EM_ALPHA);
99   ECase(EM_SH);
100   ECase(EM_SPARCV9);
101   ECase(EM_TRICORE);
102   ECase(EM_ARC);
103   ECase(EM_H8_300);
104   ECase(EM_H8_300H);
105   ECase(EM_H8S);
106   ECase(EM_H8_500);
107   ECase(EM_IA_64);
108   ECase(EM_MIPS_X);
109   ECase(EM_COLDFIRE);
110   ECase(EM_68HC12);
111   ECase(EM_MMA);
112   ECase(EM_PCP);
113   ECase(EM_NCPU);
114   ECase(EM_NDR1);
115   ECase(EM_STARCORE);
116   ECase(EM_ME16);
117   ECase(EM_ST100);
118   ECase(EM_TINYJ);
119   ECase(EM_X86_64);
120   ECase(EM_PDSP);
121   ECase(EM_PDP10);
122   ECase(EM_PDP11);
123   ECase(EM_FX66);
124   ECase(EM_ST9PLUS);
125   ECase(EM_ST7);
126   ECase(EM_68HC16);
127   ECase(EM_68HC11);
128   ECase(EM_68HC08);
129   ECase(EM_68HC05);
130   ECase(EM_SVX);
131   ECase(EM_ST19);
132   ECase(EM_VAX);
133   ECase(EM_CRIS);
134   ECase(EM_JAVELIN);
135   ECase(EM_FIREPATH);
136   ECase(EM_ZSP);
137   ECase(EM_MMIX);
138   ECase(EM_HUANY);
139   ECase(EM_PRISM);
140   ECase(EM_AVR);
141   ECase(EM_FR30);
142   ECase(EM_D10V);
143   ECase(EM_D30V);
144   ECase(EM_V850);
145   ECase(EM_M32R);
146   ECase(EM_MN10300);
147   ECase(EM_MN10200);
148   ECase(EM_PJ);
149   ECase(EM_OPENRISC);
150   ECase(EM_ARC_COMPACT);
151   ECase(EM_XTENSA);
152   ECase(EM_VIDEOCORE);
153   ECase(EM_TMM_GPP);
154   ECase(EM_NS32K);
155   ECase(EM_TPC);
156   ECase(EM_SNP1K);
157   ECase(EM_ST200);
158   ECase(EM_IP2K);
159   ECase(EM_MAX);
160   ECase(EM_CR);
161   ECase(EM_F2MC16);
162   ECase(EM_MSP430);
163   ECase(EM_BLACKFIN);
164   ECase(EM_SE_C33);
165   ECase(EM_SEP);
166   ECase(EM_ARCA);
167   ECase(EM_UNICORE);
168   ECase(EM_EXCESS);
169   ECase(EM_DXP);
170   ECase(EM_ALTERA_NIOS2);
171   ECase(EM_CRX);
172   ECase(EM_XGATE);
173   ECase(EM_C166);
174   ECase(EM_M16C);
175   ECase(EM_DSPIC30F);
176   ECase(EM_CE);
177   ECase(EM_M32C);
178   ECase(EM_TSK3000);
179   ECase(EM_RS08);
180   ECase(EM_SHARC);
181   ECase(EM_ECOG2);
182   ECase(EM_SCORE7);
183   ECase(EM_DSP24);
184   ECase(EM_VIDEOCORE3);
185   ECase(EM_LATTICEMICO32);
186   ECase(EM_SE_C17);
187   ECase(EM_TI_C6000);
188   ECase(EM_TI_C2000);
189   ECase(EM_TI_C5500);
190   ECase(EM_MMDSP_PLUS);
191   ECase(EM_CYPRESS_M8C);
192   ECase(EM_R32C);
193   ECase(EM_TRIMEDIA);
194   ECase(EM_HEXAGON);
195   ECase(EM_8051);
196   ECase(EM_STXP7X);
197   ECase(EM_NDS32);
198   ECase(EM_ECOG1);
199   ECase(EM_ECOG1X);
200   ECase(EM_MAXQ30);
201   ECase(EM_XIMO16);
202   ECase(EM_MANIK);
203   ECase(EM_CRAYNV2);
204   ECase(EM_RX);
205   ECase(EM_METAG);
206   ECase(EM_MCST_ELBRUS);
207   ECase(EM_ECOG16);
208   ECase(EM_CR16);
209   ECase(EM_ETPU);
210   ECase(EM_SLE9X);
211   ECase(EM_L10M);
212   ECase(EM_K10M);
213   ECase(EM_AARCH64);
214   ECase(EM_AVR32);
215   ECase(EM_STM8);
216   ECase(EM_TILE64);
217   ECase(EM_TILEPRO);
218   ECase(EM_CUDA);
219   ECase(EM_TILEGX);
220   ECase(EM_CLOUDSHIELD);
221   ECase(EM_COREA_1ST);
222   ECase(EM_COREA_2ND);
223   ECase(EM_ARC_COMPACT2);
224   ECase(EM_OPEN8);
225   ECase(EM_RL78);
226   ECase(EM_VIDEOCORE5);
227   ECase(EM_78KOR);
228   ECase(EM_56800EX);
229   ECase(EM_AMDGPU);
230   ECase(EM_RISCV);
231   ECase(EM_LANAI);
232   ECase(EM_BPF);
233   ECase(EM_VE);
234   ECase(EM_CSKY);
235 #undef ECase
236   IO.enumFallback<Hex16>(Value);
237 }
238 
239 void ScalarEnumerationTraits<ELFYAML::ELF_ELFCLASS>::enumeration(
240     IO &IO, ELFYAML::ELF_ELFCLASS &Value) {
241 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
242   // Since the semantics of ELFCLASSNONE is "invalid", just don't accept it
243   // here.
244   ECase(ELFCLASS32);
245   ECase(ELFCLASS64);
246 #undef ECase
247 }
248 
249 void ScalarEnumerationTraits<ELFYAML::ELF_ELFDATA>::enumeration(
250     IO &IO, ELFYAML::ELF_ELFDATA &Value) {
251 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
252   // ELFDATANONE is an invalid data encoding, but we accept it because
253   // we want to be able to produce invalid binaries for the tests.
254   ECase(ELFDATANONE);
255   ECase(ELFDATA2LSB);
256   ECase(ELFDATA2MSB);
257 #undef ECase
258 }
259 
260 void ScalarEnumerationTraits<ELFYAML::ELF_ELFOSABI>::enumeration(
261     IO &IO, ELFYAML::ELF_ELFOSABI &Value) {
262 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
263   ECase(ELFOSABI_NONE);
264   ECase(ELFOSABI_HPUX);
265   ECase(ELFOSABI_NETBSD);
266   ECase(ELFOSABI_GNU);
267   ECase(ELFOSABI_LINUX);
268   ECase(ELFOSABI_HURD);
269   ECase(ELFOSABI_SOLARIS);
270   ECase(ELFOSABI_AIX);
271   ECase(ELFOSABI_IRIX);
272   ECase(ELFOSABI_FREEBSD);
273   ECase(ELFOSABI_TRU64);
274   ECase(ELFOSABI_MODESTO);
275   ECase(ELFOSABI_OPENBSD);
276   ECase(ELFOSABI_OPENVMS);
277   ECase(ELFOSABI_NSK);
278   ECase(ELFOSABI_AROS);
279   ECase(ELFOSABI_FENIXOS);
280   ECase(ELFOSABI_CLOUDABI);
281   ECase(ELFOSABI_AMDGPU_HSA);
282   ECase(ELFOSABI_AMDGPU_PAL);
283   ECase(ELFOSABI_AMDGPU_MESA3D);
284   ECase(ELFOSABI_ARM);
285   ECase(ELFOSABI_C6000_ELFABI);
286   ECase(ELFOSABI_C6000_LINUX);
287   ECase(ELFOSABI_STANDALONE);
288 #undef ECase
289   IO.enumFallback<Hex8>(Value);
290 }
291 
292 void ScalarBitSetTraits<ELFYAML::ELF_EF>::bitset(IO &IO,
293                                                  ELFYAML::ELF_EF &Value) {
294   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
295   assert(Object && "The IO context is not initialized");
296 #define BCase(X) IO.bitSetCase(Value, #X, ELF::X)
297 #define BCaseMask(X, M) IO.maskedBitSetCase(Value, #X, ELF::X, ELF::M)
298   switch (Object->getMachine()) {
299   case ELF::EM_ARM:
300     BCase(EF_ARM_SOFT_FLOAT);
301     BCase(EF_ARM_VFP_FLOAT);
302     BCaseMask(EF_ARM_EABI_UNKNOWN, EF_ARM_EABIMASK);
303     BCaseMask(EF_ARM_EABI_VER1, EF_ARM_EABIMASK);
304     BCaseMask(EF_ARM_EABI_VER2, EF_ARM_EABIMASK);
305     BCaseMask(EF_ARM_EABI_VER3, EF_ARM_EABIMASK);
306     BCaseMask(EF_ARM_EABI_VER4, EF_ARM_EABIMASK);
307     BCaseMask(EF_ARM_EABI_VER5, EF_ARM_EABIMASK);
308     break;
309   case ELF::EM_MIPS:
310     BCase(EF_MIPS_NOREORDER);
311     BCase(EF_MIPS_PIC);
312     BCase(EF_MIPS_CPIC);
313     BCase(EF_MIPS_ABI2);
314     BCase(EF_MIPS_32BITMODE);
315     BCase(EF_MIPS_FP64);
316     BCase(EF_MIPS_NAN2008);
317     BCase(EF_MIPS_MICROMIPS);
318     BCase(EF_MIPS_ARCH_ASE_M16);
319     BCase(EF_MIPS_ARCH_ASE_MDMX);
320     BCaseMask(EF_MIPS_ABI_O32, EF_MIPS_ABI);
321     BCaseMask(EF_MIPS_ABI_O64, EF_MIPS_ABI);
322     BCaseMask(EF_MIPS_ABI_EABI32, EF_MIPS_ABI);
323     BCaseMask(EF_MIPS_ABI_EABI64, EF_MIPS_ABI);
324     BCaseMask(EF_MIPS_MACH_3900, EF_MIPS_MACH);
325     BCaseMask(EF_MIPS_MACH_4010, EF_MIPS_MACH);
326     BCaseMask(EF_MIPS_MACH_4100, EF_MIPS_MACH);
327     BCaseMask(EF_MIPS_MACH_4650, EF_MIPS_MACH);
328     BCaseMask(EF_MIPS_MACH_4120, EF_MIPS_MACH);
329     BCaseMask(EF_MIPS_MACH_4111, EF_MIPS_MACH);
330     BCaseMask(EF_MIPS_MACH_SB1, EF_MIPS_MACH);
331     BCaseMask(EF_MIPS_MACH_OCTEON, EF_MIPS_MACH);
332     BCaseMask(EF_MIPS_MACH_XLR, EF_MIPS_MACH);
333     BCaseMask(EF_MIPS_MACH_OCTEON2, EF_MIPS_MACH);
334     BCaseMask(EF_MIPS_MACH_OCTEON3, EF_MIPS_MACH);
335     BCaseMask(EF_MIPS_MACH_5400, EF_MIPS_MACH);
336     BCaseMask(EF_MIPS_MACH_5900, EF_MIPS_MACH);
337     BCaseMask(EF_MIPS_MACH_5500, EF_MIPS_MACH);
338     BCaseMask(EF_MIPS_MACH_9000, EF_MIPS_MACH);
339     BCaseMask(EF_MIPS_MACH_LS2E, EF_MIPS_MACH);
340     BCaseMask(EF_MIPS_MACH_LS2F, EF_MIPS_MACH);
341     BCaseMask(EF_MIPS_MACH_LS3A, EF_MIPS_MACH);
342     BCaseMask(EF_MIPS_ARCH_1, EF_MIPS_ARCH);
343     BCaseMask(EF_MIPS_ARCH_2, EF_MIPS_ARCH);
344     BCaseMask(EF_MIPS_ARCH_3, EF_MIPS_ARCH);
345     BCaseMask(EF_MIPS_ARCH_4, EF_MIPS_ARCH);
346     BCaseMask(EF_MIPS_ARCH_5, EF_MIPS_ARCH);
347     BCaseMask(EF_MIPS_ARCH_32, EF_MIPS_ARCH);
348     BCaseMask(EF_MIPS_ARCH_64, EF_MIPS_ARCH);
349     BCaseMask(EF_MIPS_ARCH_32R2, EF_MIPS_ARCH);
350     BCaseMask(EF_MIPS_ARCH_64R2, EF_MIPS_ARCH);
351     BCaseMask(EF_MIPS_ARCH_32R6, EF_MIPS_ARCH);
352     BCaseMask(EF_MIPS_ARCH_64R6, EF_MIPS_ARCH);
353     break;
354   case ELF::EM_HEXAGON:
355     BCase(EF_HEXAGON_MACH_V2);
356     BCase(EF_HEXAGON_MACH_V3);
357     BCase(EF_HEXAGON_MACH_V4);
358     BCase(EF_HEXAGON_MACH_V5);
359     BCase(EF_HEXAGON_MACH_V55);
360     BCase(EF_HEXAGON_MACH_V60);
361     BCase(EF_HEXAGON_MACH_V62);
362     BCase(EF_HEXAGON_MACH_V65);
363     BCase(EF_HEXAGON_MACH_V66);
364     BCase(EF_HEXAGON_MACH_V67);
365     BCase(EF_HEXAGON_MACH_V67T);
366     BCase(EF_HEXAGON_ISA_V2);
367     BCase(EF_HEXAGON_ISA_V3);
368     BCase(EF_HEXAGON_ISA_V4);
369     BCase(EF_HEXAGON_ISA_V5);
370     BCase(EF_HEXAGON_ISA_V55);
371     BCase(EF_HEXAGON_ISA_V60);
372     BCase(EF_HEXAGON_ISA_V62);
373     BCase(EF_HEXAGON_ISA_V65);
374     BCase(EF_HEXAGON_ISA_V66);
375     BCase(EF_HEXAGON_ISA_V67);
376     break;
377   case ELF::EM_AVR:
378     BCase(EF_AVR_ARCH_AVR1);
379     BCase(EF_AVR_ARCH_AVR2);
380     BCase(EF_AVR_ARCH_AVR25);
381     BCase(EF_AVR_ARCH_AVR3);
382     BCase(EF_AVR_ARCH_AVR31);
383     BCase(EF_AVR_ARCH_AVR35);
384     BCase(EF_AVR_ARCH_AVR4);
385     BCase(EF_AVR_ARCH_AVR51);
386     BCase(EF_AVR_ARCH_AVR6);
387     BCase(EF_AVR_ARCH_AVRTINY);
388     BCase(EF_AVR_ARCH_XMEGA1);
389     BCase(EF_AVR_ARCH_XMEGA2);
390     BCase(EF_AVR_ARCH_XMEGA3);
391     BCase(EF_AVR_ARCH_XMEGA4);
392     BCase(EF_AVR_ARCH_XMEGA5);
393     BCase(EF_AVR_ARCH_XMEGA6);
394     BCase(EF_AVR_ARCH_XMEGA7);
395     break;
396   case ELF::EM_RISCV:
397     BCase(EF_RISCV_RVC);
398     BCaseMask(EF_RISCV_FLOAT_ABI_SOFT, EF_RISCV_FLOAT_ABI);
399     BCaseMask(EF_RISCV_FLOAT_ABI_SINGLE, EF_RISCV_FLOAT_ABI);
400     BCaseMask(EF_RISCV_FLOAT_ABI_DOUBLE, EF_RISCV_FLOAT_ABI);
401     BCaseMask(EF_RISCV_FLOAT_ABI_QUAD, EF_RISCV_FLOAT_ABI);
402     BCase(EF_RISCV_RVE);
403     break;
404   case ELF::EM_AMDGPU:
405     BCaseMask(EF_AMDGPU_MACH_NONE, EF_AMDGPU_MACH);
406     BCaseMask(EF_AMDGPU_MACH_R600_R600, EF_AMDGPU_MACH);
407     BCaseMask(EF_AMDGPU_MACH_R600_R630, EF_AMDGPU_MACH);
408     BCaseMask(EF_AMDGPU_MACH_R600_RS880, EF_AMDGPU_MACH);
409     BCaseMask(EF_AMDGPU_MACH_R600_RV670, EF_AMDGPU_MACH);
410     BCaseMask(EF_AMDGPU_MACH_R600_RV710, EF_AMDGPU_MACH);
411     BCaseMask(EF_AMDGPU_MACH_R600_RV730, EF_AMDGPU_MACH);
412     BCaseMask(EF_AMDGPU_MACH_R600_RV770, EF_AMDGPU_MACH);
413     BCaseMask(EF_AMDGPU_MACH_R600_CEDAR, EF_AMDGPU_MACH);
414     BCaseMask(EF_AMDGPU_MACH_R600_CYPRESS, EF_AMDGPU_MACH);
415     BCaseMask(EF_AMDGPU_MACH_R600_JUNIPER, EF_AMDGPU_MACH);
416     BCaseMask(EF_AMDGPU_MACH_R600_REDWOOD, EF_AMDGPU_MACH);
417     BCaseMask(EF_AMDGPU_MACH_R600_SUMO, EF_AMDGPU_MACH);
418     BCaseMask(EF_AMDGPU_MACH_R600_BARTS, EF_AMDGPU_MACH);
419     BCaseMask(EF_AMDGPU_MACH_R600_CAICOS, EF_AMDGPU_MACH);
420     BCaseMask(EF_AMDGPU_MACH_R600_CAYMAN, EF_AMDGPU_MACH);
421     BCaseMask(EF_AMDGPU_MACH_R600_TURKS, EF_AMDGPU_MACH);
422     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX600, EF_AMDGPU_MACH);
423     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX601, EF_AMDGPU_MACH);
424     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX602, EF_AMDGPU_MACH);
425     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX700, EF_AMDGPU_MACH);
426     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX701, EF_AMDGPU_MACH);
427     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX702, EF_AMDGPU_MACH);
428     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX703, EF_AMDGPU_MACH);
429     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX704, EF_AMDGPU_MACH);
430     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX705, EF_AMDGPU_MACH);
431     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX801, EF_AMDGPU_MACH);
432     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX802, EF_AMDGPU_MACH);
433     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX803, EF_AMDGPU_MACH);
434     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX805, EF_AMDGPU_MACH);
435     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX810, EF_AMDGPU_MACH);
436     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX900, EF_AMDGPU_MACH);
437     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX902, EF_AMDGPU_MACH);
438     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX904, EF_AMDGPU_MACH);
439     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX906, EF_AMDGPU_MACH);
440     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX908, EF_AMDGPU_MACH);
441     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX909, EF_AMDGPU_MACH);
442     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX90C, EF_AMDGPU_MACH);
443     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX1010, EF_AMDGPU_MACH);
444     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX1011, EF_AMDGPU_MACH);
445     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX1012, EF_AMDGPU_MACH);
446     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX1030, EF_AMDGPU_MACH);
447     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX1031, EF_AMDGPU_MACH);
448     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX1032, EF_AMDGPU_MACH);
449     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX1033, EF_AMDGPU_MACH);
450     BCase(EF_AMDGPU_XNACK);
451     BCase(EF_AMDGPU_SRAM_ECC);
452     break;
453   default:
454     break;
455   }
456 #undef BCase
457 #undef BCaseMask
458 }
459 
460 void ScalarEnumerationTraits<ELFYAML::ELF_SHT>::enumeration(
461     IO &IO, ELFYAML::ELF_SHT &Value) {
462   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
463   assert(Object && "The IO context is not initialized");
464 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
465   ECase(SHT_NULL);
466   ECase(SHT_PROGBITS);
467   ECase(SHT_SYMTAB);
468   // FIXME: Issue a diagnostic with this information.
469   ECase(SHT_STRTAB);
470   ECase(SHT_RELA);
471   ECase(SHT_HASH);
472   ECase(SHT_DYNAMIC);
473   ECase(SHT_NOTE);
474   ECase(SHT_NOBITS);
475   ECase(SHT_REL);
476   ECase(SHT_SHLIB);
477   ECase(SHT_DYNSYM);
478   ECase(SHT_INIT_ARRAY);
479   ECase(SHT_FINI_ARRAY);
480   ECase(SHT_PREINIT_ARRAY);
481   ECase(SHT_GROUP);
482   ECase(SHT_SYMTAB_SHNDX);
483   ECase(SHT_RELR);
484   ECase(SHT_ANDROID_REL);
485   ECase(SHT_ANDROID_RELA);
486   ECase(SHT_ANDROID_RELR);
487   ECase(SHT_LLVM_ODRTAB);
488   ECase(SHT_LLVM_LINKER_OPTIONS);
489   ECase(SHT_LLVM_CALL_GRAPH_PROFILE);
490   ECase(SHT_LLVM_ADDRSIG);
491   ECase(SHT_LLVM_DEPENDENT_LIBRARIES);
492   ECase(SHT_LLVM_SYMPART);
493   ECase(SHT_LLVM_PART_EHDR);
494   ECase(SHT_LLVM_PART_PHDR);
495   ECase(SHT_GNU_ATTRIBUTES);
496   ECase(SHT_GNU_HASH);
497   ECase(SHT_GNU_verdef);
498   ECase(SHT_GNU_verneed);
499   ECase(SHT_GNU_versym);
500   switch (Object->getMachine()) {
501   case ELF::EM_ARM:
502     ECase(SHT_ARM_EXIDX);
503     ECase(SHT_ARM_PREEMPTMAP);
504     ECase(SHT_ARM_ATTRIBUTES);
505     ECase(SHT_ARM_DEBUGOVERLAY);
506     ECase(SHT_ARM_OVERLAYSECTION);
507     break;
508   case ELF::EM_HEXAGON:
509     ECase(SHT_HEX_ORDERED);
510     break;
511   case ELF::EM_X86_64:
512     ECase(SHT_X86_64_UNWIND);
513     break;
514   case ELF::EM_MIPS:
515     ECase(SHT_MIPS_REGINFO);
516     ECase(SHT_MIPS_OPTIONS);
517     ECase(SHT_MIPS_DWARF);
518     ECase(SHT_MIPS_ABIFLAGS);
519     break;
520   case ELF::EM_RISCV:
521     ECase(SHT_RISCV_ATTRIBUTES);
522     break;
523   default:
524     // Nothing to do.
525     break;
526   }
527 #undef ECase
528   IO.enumFallback<Hex32>(Value);
529 }
530 
531 void ScalarBitSetTraits<ELFYAML::ELF_PF>::bitset(IO &IO,
532                                                  ELFYAML::ELF_PF &Value) {
533 #define BCase(X) IO.bitSetCase(Value, #X, ELF::X)
534   BCase(PF_X);
535   BCase(PF_W);
536   BCase(PF_R);
537 }
538 
539 void ScalarBitSetTraits<ELFYAML::ELF_SHF>::bitset(IO &IO,
540                                                   ELFYAML::ELF_SHF &Value) {
541   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
542 #define BCase(X) IO.bitSetCase(Value, #X, ELF::X)
543   BCase(SHF_WRITE);
544   BCase(SHF_ALLOC);
545   BCase(SHF_EXCLUDE);
546   BCase(SHF_EXECINSTR);
547   BCase(SHF_MERGE);
548   BCase(SHF_STRINGS);
549   BCase(SHF_INFO_LINK);
550   BCase(SHF_LINK_ORDER);
551   BCase(SHF_OS_NONCONFORMING);
552   BCase(SHF_GROUP);
553   BCase(SHF_TLS);
554   BCase(SHF_COMPRESSED);
555   switch (Object->getMachine()) {
556   case ELF::EM_ARM:
557     BCase(SHF_ARM_PURECODE);
558     break;
559   case ELF::EM_HEXAGON:
560     BCase(SHF_HEX_GPREL);
561     break;
562   case ELF::EM_MIPS:
563     BCase(SHF_MIPS_NODUPES);
564     BCase(SHF_MIPS_NAMES);
565     BCase(SHF_MIPS_LOCAL);
566     BCase(SHF_MIPS_NOSTRIP);
567     BCase(SHF_MIPS_GPREL);
568     BCase(SHF_MIPS_MERGE);
569     BCase(SHF_MIPS_ADDR);
570     BCase(SHF_MIPS_STRING);
571     break;
572   case ELF::EM_X86_64:
573     BCase(SHF_X86_64_LARGE);
574     break;
575   default:
576     // Nothing to do.
577     break;
578   }
579 #undef BCase
580 }
581 
582 void ScalarEnumerationTraits<ELFYAML::ELF_SHN>::enumeration(
583     IO &IO, ELFYAML::ELF_SHN &Value) {
584 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
585   ECase(SHN_UNDEF);
586   ECase(SHN_LORESERVE);
587   ECase(SHN_LOPROC);
588   ECase(SHN_HIPROC);
589   ECase(SHN_LOOS);
590   ECase(SHN_HIOS);
591   ECase(SHN_ABS);
592   ECase(SHN_COMMON);
593   ECase(SHN_XINDEX);
594   ECase(SHN_HIRESERVE);
595   ECase(SHN_AMDGPU_LDS);
596   ECase(SHN_HEXAGON_SCOMMON);
597   ECase(SHN_HEXAGON_SCOMMON_1);
598   ECase(SHN_HEXAGON_SCOMMON_2);
599   ECase(SHN_HEXAGON_SCOMMON_4);
600   ECase(SHN_HEXAGON_SCOMMON_8);
601 #undef ECase
602   IO.enumFallback<Hex16>(Value);
603 }
604 
605 void ScalarEnumerationTraits<ELFYAML::ELF_STB>::enumeration(
606     IO &IO, ELFYAML::ELF_STB &Value) {
607 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
608   ECase(STB_LOCAL);
609   ECase(STB_GLOBAL);
610   ECase(STB_WEAK);
611   ECase(STB_GNU_UNIQUE);
612 #undef ECase
613   IO.enumFallback<Hex8>(Value);
614 }
615 
616 void ScalarEnumerationTraits<ELFYAML::ELF_STT>::enumeration(
617     IO &IO, ELFYAML::ELF_STT &Value) {
618 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
619   ECase(STT_NOTYPE);
620   ECase(STT_OBJECT);
621   ECase(STT_FUNC);
622   ECase(STT_SECTION);
623   ECase(STT_FILE);
624   ECase(STT_COMMON);
625   ECase(STT_TLS);
626   ECase(STT_GNU_IFUNC);
627 #undef ECase
628   IO.enumFallback<Hex8>(Value);
629 }
630 
631 
632 void ScalarEnumerationTraits<ELFYAML::ELF_RSS>::enumeration(
633     IO &IO, ELFYAML::ELF_RSS &Value) {
634 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
635   ECase(RSS_UNDEF);
636   ECase(RSS_GP);
637   ECase(RSS_GP0);
638   ECase(RSS_LOC);
639 #undef ECase
640 }
641 
642 void ScalarEnumerationTraits<ELFYAML::ELF_REL>::enumeration(
643     IO &IO, ELFYAML::ELF_REL &Value) {
644   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
645   assert(Object && "The IO context is not initialized");
646 #define ELF_RELOC(X, Y) IO.enumCase(Value, #X, ELF::X);
647   switch (Object->getMachine()) {
648   case ELF::EM_X86_64:
649 #include "llvm/BinaryFormat/ELFRelocs/x86_64.def"
650     break;
651   case ELF::EM_MIPS:
652 #include "llvm/BinaryFormat/ELFRelocs/Mips.def"
653     break;
654   case ELF::EM_HEXAGON:
655 #include "llvm/BinaryFormat/ELFRelocs/Hexagon.def"
656     break;
657   case ELF::EM_386:
658   case ELF::EM_IAMCU:
659 #include "llvm/BinaryFormat/ELFRelocs/i386.def"
660     break;
661   case ELF::EM_AARCH64:
662 #include "llvm/BinaryFormat/ELFRelocs/AArch64.def"
663     break;
664   case ELF::EM_ARM:
665 #include "llvm/BinaryFormat/ELFRelocs/ARM.def"
666     break;
667   case ELF::EM_ARC:
668 #include "llvm/BinaryFormat/ELFRelocs/ARC.def"
669     break;
670   case ELF::EM_RISCV:
671 #include "llvm/BinaryFormat/ELFRelocs/RISCV.def"
672     break;
673   case ELF::EM_LANAI:
674 #include "llvm/BinaryFormat/ELFRelocs/Lanai.def"
675     break;
676   case ELF::EM_AMDGPU:
677 #include "llvm/BinaryFormat/ELFRelocs/AMDGPU.def"
678     break;
679   case ELF::EM_BPF:
680 #include "llvm/BinaryFormat/ELFRelocs/BPF.def"
681     break;
682   case ELF::EM_VE:
683 #include "llvm/BinaryFormat/ELFRelocs/VE.def"
684     break;
685   case ELF::EM_CSKY:
686 #include "llvm/BinaryFormat/ELFRelocs/CSKY.def"
687     break;
688   case ELF::EM_PPC64:
689 #include "llvm/BinaryFormat/ELFRelocs/PowerPC64.def"
690     break;
691   default:
692     // Nothing to do.
693     break;
694   }
695 #undef ELF_RELOC
696   IO.enumFallback<Hex32>(Value);
697 }
698 
699 void ScalarEnumerationTraits<ELFYAML::ELF_DYNTAG>::enumeration(
700     IO &IO, ELFYAML::ELF_DYNTAG &Value) {
701   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
702   assert(Object && "The IO context is not initialized");
703 
704 // Disable architecture specific tags by default. We might enable them below.
705 #define AARCH64_DYNAMIC_TAG(name, value)
706 #define MIPS_DYNAMIC_TAG(name, value)
707 #define HEXAGON_DYNAMIC_TAG(name, value)
708 #define PPC_DYNAMIC_TAG(name, value)
709 #define PPC64_DYNAMIC_TAG(name, value)
710 // Ignore marker tags such as DT_HIOS (maps to DT_VERNEEDNUM), etc.
711 #define DYNAMIC_TAG_MARKER(name, value)
712 
713 #define STRINGIFY(X) (#X)
714 #define DYNAMIC_TAG(X, Y) IO.enumCase(Value, STRINGIFY(DT_##X), ELF::DT_##X);
715   switch (Object->getMachine()) {
716   case ELF::EM_AARCH64:
717 #undef AARCH64_DYNAMIC_TAG
718 #define AARCH64_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
719 #include "llvm/BinaryFormat/DynamicTags.def"
720 #undef AARCH64_DYNAMIC_TAG
721 #define AARCH64_DYNAMIC_TAG(name, value)
722     break;
723   case ELF::EM_MIPS:
724 #undef MIPS_DYNAMIC_TAG
725 #define MIPS_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
726 #include "llvm/BinaryFormat/DynamicTags.def"
727 #undef MIPS_DYNAMIC_TAG
728 #define MIPS_DYNAMIC_TAG(name, value)
729     break;
730   case ELF::EM_HEXAGON:
731 #undef HEXAGON_DYNAMIC_TAG
732 #define HEXAGON_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
733 #include "llvm/BinaryFormat/DynamicTags.def"
734 #undef HEXAGON_DYNAMIC_TAG
735 #define HEXAGON_DYNAMIC_TAG(name, value)
736     break;
737   case ELF::EM_PPC:
738 #undef PPC_DYNAMIC_TAG
739 #define PPC_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
740 #include "llvm/BinaryFormat/DynamicTags.def"
741 #undef PPC_DYNAMIC_TAG
742 #define PPC_DYNAMIC_TAG(name, value)
743     break;
744   case ELF::EM_PPC64:
745 #undef PPC64_DYNAMIC_TAG
746 #define PPC64_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
747 #include "llvm/BinaryFormat/DynamicTags.def"
748 #undef PPC64_DYNAMIC_TAG
749 #define PPC64_DYNAMIC_TAG(name, value)
750     break;
751   default:
752 #include "llvm/BinaryFormat/DynamicTags.def"
753     break;
754   }
755 #undef AARCH64_DYNAMIC_TAG
756 #undef MIPS_DYNAMIC_TAG
757 #undef HEXAGON_DYNAMIC_TAG
758 #undef PPC_DYNAMIC_TAG
759 #undef PPC64_DYNAMIC_TAG
760 #undef DYNAMIC_TAG_MARKER
761 #undef STRINGIFY
762 #undef DYNAMIC_TAG
763 
764   IO.enumFallback<Hex64>(Value);
765 }
766 
767 void ScalarEnumerationTraits<ELFYAML::MIPS_AFL_REG>::enumeration(
768     IO &IO, ELFYAML::MIPS_AFL_REG &Value) {
769 #define ECase(X) IO.enumCase(Value, #X, Mips::AFL_##X)
770   ECase(REG_NONE);
771   ECase(REG_32);
772   ECase(REG_64);
773   ECase(REG_128);
774 #undef ECase
775 }
776 
777 void ScalarEnumerationTraits<ELFYAML::MIPS_ABI_FP>::enumeration(
778     IO &IO, ELFYAML::MIPS_ABI_FP &Value) {
779 #define ECase(X) IO.enumCase(Value, #X, Mips::Val_GNU_MIPS_ABI_##X)
780   ECase(FP_ANY);
781   ECase(FP_DOUBLE);
782   ECase(FP_SINGLE);
783   ECase(FP_SOFT);
784   ECase(FP_OLD_64);
785   ECase(FP_XX);
786   ECase(FP_64);
787   ECase(FP_64A);
788 #undef ECase
789 }
790 
791 void ScalarEnumerationTraits<ELFYAML::MIPS_AFL_EXT>::enumeration(
792     IO &IO, ELFYAML::MIPS_AFL_EXT &Value) {
793 #define ECase(X) IO.enumCase(Value, #X, Mips::AFL_##X)
794   ECase(EXT_NONE);
795   ECase(EXT_XLR);
796   ECase(EXT_OCTEON2);
797   ECase(EXT_OCTEONP);
798   ECase(EXT_LOONGSON_3A);
799   ECase(EXT_OCTEON);
800   ECase(EXT_5900);
801   ECase(EXT_4650);
802   ECase(EXT_4010);
803   ECase(EXT_4100);
804   ECase(EXT_3900);
805   ECase(EXT_10000);
806   ECase(EXT_SB1);
807   ECase(EXT_4111);
808   ECase(EXT_4120);
809   ECase(EXT_5400);
810   ECase(EXT_5500);
811   ECase(EXT_LOONGSON_2E);
812   ECase(EXT_LOONGSON_2F);
813   ECase(EXT_OCTEON3);
814 #undef ECase
815 }
816 
817 void ScalarEnumerationTraits<ELFYAML::MIPS_ISA>::enumeration(
818     IO &IO, ELFYAML::MIPS_ISA &Value) {
819   IO.enumCase(Value, "MIPS1", 1);
820   IO.enumCase(Value, "MIPS2", 2);
821   IO.enumCase(Value, "MIPS3", 3);
822   IO.enumCase(Value, "MIPS4", 4);
823   IO.enumCase(Value, "MIPS5", 5);
824   IO.enumCase(Value, "MIPS32", 32);
825   IO.enumCase(Value, "MIPS64", 64);
826   IO.enumFallback<Hex32>(Value);
827 }
828 
829 void ScalarBitSetTraits<ELFYAML::MIPS_AFL_ASE>::bitset(
830     IO &IO, ELFYAML::MIPS_AFL_ASE &Value) {
831 #define BCase(X) IO.bitSetCase(Value, #X, Mips::AFL_ASE_##X)
832   BCase(DSP);
833   BCase(DSPR2);
834   BCase(EVA);
835   BCase(MCU);
836   BCase(MDMX);
837   BCase(MIPS3D);
838   BCase(MT);
839   BCase(SMARTMIPS);
840   BCase(VIRT);
841   BCase(MSA);
842   BCase(MIPS16);
843   BCase(MICROMIPS);
844   BCase(XPA);
845   BCase(CRC);
846   BCase(GINV);
847 #undef BCase
848 }
849 
850 void ScalarBitSetTraits<ELFYAML::MIPS_AFL_FLAGS1>::bitset(
851     IO &IO, ELFYAML::MIPS_AFL_FLAGS1 &Value) {
852 #define BCase(X) IO.bitSetCase(Value, #X, Mips::AFL_FLAGS1_##X)
853   BCase(ODDSPREG);
854 #undef BCase
855 }
856 
857 void MappingTraits<ELFYAML::SectionHeader>::mapping(
858     IO &IO, ELFYAML::SectionHeader &SHdr) {
859   IO.mapRequired("Name", SHdr.Name);
860 }
861 
862 void MappingTraits<ELFYAML::SectionHeaderTable>::mapping(
863     IO &IO, ELFYAML::SectionHeaderTable &SectionHeader) {
864   IO.mapOptional("Sections", SectionHeader.Sections);
865   IO.mapOptional("Excluded", SectionHeader.Excluded);
866   IO.mapOptional("NoHeaders", SectionHeader.NoHeaders);
867 }
868 
869 std::string MappingTraits<ELFYAML::SectionHeaderTable>::validate(
870     IO &IO, ELFYAML::SectionHeaderTable &SecHdrTable) {
871   if (SecHdrTable.NoHeaders && (SecHdrTable.Sections || SecHdrTable.Excluded))
872     return "NoHeaders can't be used together with Sections/Excluded";
873   if (!SecHdrTable.NoHeaders && !SecHdrTable.Sections && !SecHdrTable.Excluded)
874     return "SectionHeaderTable can't be empty. Use 'NoHeaders' key to drop the "
875            "section header table";
876   return "";
877 }
878 
879 void MappingTraits<ELFYAML::FileHeader>::mapping(IO &IO,
880                                                  ELFYAML::FileHeader &FileHdr) {
881   IO.mapRequired("Class", FileHdr.Class);
882   IO.mapRequired("Data", FileHdr.Data);
883   IO.mapOptional("OSABI", FileHdr.OSABI, ELFYAML::ELF_ELFOSABI(0));
884   IO.mapOptional("ABIVersion", FileHdr.ABIVersion, Hex8(0));
885   IO.mapRequired("Type", FileHdr.Type);
886   IO.mapOptional("Machine", FileHdr.Machine);
887   IO.mapOptional("Flags", FileHdr.Flags, ELFYAML::ELF_EF(0));
888   IO.mapOptional("Entry", FileHdr.Entry, Hex64(0));
889 
890   // obj2yaml does not dump these fields.
891   assert(!IO.outputting() ||
892          (!FileHdr.EPhOff && !FileHdr.EPhEntSize && !FileHdr.EPhNum));
893   IO.mapOptional("EPhOff", FileHdr.EPhOff);
894   IO.mapOptional("EPhEntSize", FileHdr.EPhEntSize);
895   IO.mapOptional("EPhNum", FileHdr.EPhNum);
896   IO.mapOptional("EShEntSize", FileHdr.EShEntSize);
897   IO.mapOptional("EShOff", FileHdr.EShOff);
898   IO.mapOptional("EShNum", FileHdr.EShNum);
899   IO.mapOptional("EShStrNdx", FileHdr.EShStrNdx);
900 }
901 
902 void MappingTraits<ELFYAML::ProgramHeader>::mapping(
903     IO &IO, ELFYAML::ProgramHeader &Phdr) {
904   IO.mapRequired("Type", Phdr.Type);
905   IO.mapOptional("Flags", Phdr.Flags, ELFYAML::ELF_PF(0));
906   IO.mapOptional("Sections", Phdr.Sections);
907   IO.mapOptional("VAddr", Phdr.VAddr, Hex64(0));
908   IO.mapOptional("PAddr", Phdr.PAddr, Phdr.VAddr);
909   IO.mapOptional("Align", Phdr.Align);
910   IO.mapOptional("FileSize", Phdr.FileSize);
911   IO.mapOptional("MemSize", Phdr.MemSize);
912   IO.mapOptional("Offset", Phdr.Offset);
913 }
914 
915 LLVM_YAML_STRONG_TYPEDEF(StringRef, StOtherPiece)
916 
917 template <> struct ScalarTraits<StOtherPiece> {
918   static void output(const StOtherPiece &Val, void *, raw_ostream &Out) {
919     Out << Val;
920   }
921   static StringRef input(StringRef Scalar, void *, StOtherPiece &Val) {
922     Val = Scalar;
923     return {};
924   }
925   static QuotingType mustQuote(StringRef) { return QuotingType::None; }
926 };
927 template <> struct SequenceElementTraits<StOtherPiece> {
928   static const bool flow = true;
929 };
930 
931 template <> struct ScalarTraits<ELFYAML::YAMLFlowString> {
932   static void output(const ELFYAML::YAMLFlowString &Val, void *,
933                      raw_ostream &Out) {
934     Out << Val;
935   }
936   static StringRef input(StringRef Scalar, void *,
937                          ELFYAML::YAMLFlowString &Val) {
938     Val = Scalar;
939     return {};
940   }
941   static QuotingType mustQuote(StringRef S) {
942     return ScalarTraits<StringRef>::mustQuote(S);
943   }
944 };
945 template <> struct SequenceElementTraits<ELFYAML::YAMLFlowString> {
946   static const bool flow = true;
947 };
948 
949 namespace {
950 
951 struct NormalizedOther {
952   NormalizedOther(IO &IO) : YamlIO(IO) {}
953   NormalizedOther(IO &IO, Optional<uint8_t> Original) : YamlIO(IO) {
954     assert(Original && "This constructor is only used for outputting YAML and "
955                        "assumes a non-empty Original");
956     std::vector<StOtherPiece> Ret;
957     const auto *Object = static_cast<ELFYAML::Object *>(YamlIO.getContext());
958     for (std::pair<StringRef, uint8_t> &P :
959          getFlags(Object->getMachine()).takeVector()) {
960       uint8_t FlagValue = P.second;
961       if ((*Original & FlagValue) != FlagValue)
962         continue;
963       *Original &= ~FlagValue;
964       Ret.push_back({P.first});
965     }
966 
967     if (*Original != 0) {
968       UnknownFlagsHolder = std::to_string(*Original);
969       Ret.push_back({UnknownFlagsHolder});
970     }
971 
972     if (!Ret.empty())
973       Other = std::move(Ret);
974   }
975 
976   uint8_t toValue(StringRef Name) {
977     const auto *Object = static_cast<ELFYAML::Object *>(YamlIO.getContext());
978     MapVector<StringRef, uint8_t> Flags = getFlags(Object->getMachine());
979 
980     auto It = Flags.find(Name);
981     if (It != Flags.end())
982       return It->second;
983 
984     uint8_t Val;
985     if (to_integer(Name, Val))
986       return Val;
987 
988     YamlIO.setError("an unknown value is used for symbol's 'Other' field: " +
989                     Name);
990     return 0;
991   }
992 
993   Optional<uint8_t> denormalize(IO &) {
994     if (!Other)
995       return None;
996     uint8_t Ret = 0;
997     for (StOtherPiece &Val : *Other)
998       Ret |= toValue(Val);
999     return Ret;
1000   }
1001 
1002   // st_other field is used to encode symbol visibility and platform-dependent
1003   // flags and values. This method returns a name to value map that is used for
1004   // parsing and encoding this field.
1005   MapVector<StringRef, uint8_t> getFlags(unsigned EMachine) {
1006     MapVector<StringRef, uint8_t> Map;
1007     // STV_* values are just enumeration values. We add them in a reversed order
1008     // because when we convert the st_other to named constants when printing
1009     // YAML we want to use a maximum number of bits on each step:
1010     // when we have st_other == 3, we want to print it as STV_PROTECTED (3), but
1011     // not as STV_HIDDEN (2) + STV_INTERNAL (1).
1012     Map["STV_PROTECTED"] = ELF::STV_PROTECTED;
1013     Map["STV_HIDDEN"] = ELF::STV_HIDDEN;
1014     Map["STV_INTERNAL"] = ELF::STV_INTERNAL;
1015     // STV_DEFAULT is used to represent the default visibility and has a value
1016     // 0. We want to be able to read it from YAML documents, but there is no
1017     // reason to print it.
1018     if (!YamlIO.outputting())
1019       Map["STV_DEFAULT"] = ELF::STV_DEFAULT;
1020 
1021     // MIPS is not consistent. All of the STO_MIPS_* values are bit flags,
1022     // except STO_MIPS_MIPS16 which overlaps them. It should be checked and
1023     // consumed first when we print the output, because we do not want to print
1024     // any other flags that have the same bits instead.
1025     if (EMachine == ELF::EM_MIPS) {
1026       Map["STO_MIPS_MIPS16"] = ELF::STO_MIPS_MIPS16;
1027       Map["STO_MIPS_MICROMIPS"] = ELF::STO_MIPS_MICROMIPS;
1028       Map["STO_MIPS_PIC"] = ELF::STO_MIPS_PIC;
1029       Map["STO_MIPS_PLT"] = ELF::STO_MIPS_PLT;
1030       Map["STO_MIPS_OPTIONAL"] = ELF::STO_MIPS_OPTIONAL;
1031     }
1032     return Map;
1033   }
1034 
1035   IO &YamlIO;
1036   Optional<std::vector<StOtherPiece>> Other;
1037   std::string UnknownFlagsHolder;
1038 };
1039 
1040 } // end anonymous namespace
1041 
1042 void ScalarTraits<ELFYAML::YAMLIntUInt>::output(const ELFYAML::YAMLIntUInt &Val,
1043                                                 void *Ctx, raw_ostream &Out) {
1044   Out << Val;
1045 }
1046 
1047 StringRef ScalarTraits<ELFYAML::YAMLIntUInt>::input(StringRef Scalar, void *Ctx,
1048                                                     ELFYAML::YAMLIntUInt &Val) {
1049   const bool Is64 = static_cast<ELFYAML::Object *>(Ctx)->Header.Class ==
1050                     ELFYAML::ELF_ELFCLASS(ELF::ELFCLASS64);
1051   StringRef ErrMsg = "invalid number";
1052   // We do not accept negative hex numbers because their meaning is ambiguous.
1053   // For example, would -0xfffffffff mean 1 or INT32_MIN?
1054   if (Scalar.empty() || Scalar.startswith("-0x"))
1055     return ErrMsg;
1056 
1057   if (Scalar.startswith("-")) {
1058     const int64_t MinVal = Is64 ? INT64_MIN : INT32_MIN;
1059     long long Int;
1060     if (getAsSignedInteger(Scalar, /*Radix=*/0, Int) || (Int < MinVal))
1061       return ErrMsg;
1062     Val = Int;
1063     return "";
1064   }
1065 
1066   const uint64_t MaxVal = Is64 ? UINT64_MAX : UINT32_MAX;
1067   unsigned long long UInt;
1068   if (getAsUnsignedInteger(Scalar, /*Radix=*/0, UInt) || (UInt > MaxVal))
1069     return ErrMsg;
1070   Val = UInt;
1071   return "";
1072 }
1073 
1074 void MappingTraits<ELFYAML::Symbol>::mapping(IO &IO, ELFYAML::Symbol &Symbol) {
1075   IO.mapOptional("Name", Symbol.Name, StringRef());
1076   IO.mapOptional("StName", Symbol.StName);
1077   IO.mapOptional("Type", Symbol.Type, ELFYAML::ELF_STT(0));
1078   IO.mapOptional("Section", Symbol.Section, StringRef());
1079   IO.mapOptional("Index", Symbol.Index);
1080   IO.mapOptional("Binding", Symbol.Binding, ELFYAML::ELF_STB(0));
1081   IO.mapOptional("Value", Symbol.Value, Hex64(0));
1082   IO.mapOptional("Size", Symbol.Size, Hex64(0));
1083 
1084   // Symbol's Other field is a bit special. It is usually a field that
1085   // represents st_other and holds the symbol visibility. However, on some
1086   // platforms, it can contain bit fields and regular values, or even sometimes a
1087   // crazy mix of them (see comments for NormalizedOther). Because of this, we
1088   // need special handling.
1089   MappingNormalization<NormalizedOther, Optional<uint8_t>> Keys(IO,
1090                                                                 Symbol.Other);
1091   IO.mapOptional("Other", Keys->Other);
1092 }
1093 
1094 std::string MappingTraits<ELFYAML::Symbol>::validate(IO &IO,
1095                                                      ELFYAML::Symbol &Symbol) {
1096   if (Symbol.Index && Symbol.Section.data())
1097     return "Index and Section cannot both be specified for Symbol";
1098   return "";
1099 }
1100 
1101 static void commonSectionMapping(IO &IO, ELFYAML::Section &Section) {
1102   IO.mapOptional("Name", Section.Name, StringRef());
1103   IO.mapRequired("Type", Section.Type);
1104   IO.mapOptional("Flags", Section.Flags);
1105   IO.mapOptional("Address", Section.Address);
1106   IO.mapOptional("Link", Section.Link);
1107   IO.mapOptional("AddressAlign", Section.AddressAlign, Hex64(0));
1108   IO.mapOptional("EntSize", Section.EntSize);
1109   IO.mapOptional("Offset", Section.Offset);
1110 
1111   IO.mapOptional("Content", Section.Content);
1112   IO.mapOptional("Size", Section.Size);
1113 
1114   // obj2yaml does not dump these fields. They are expected to be empty when we
1115   // are producing YAML, because yaml2obj sets appropriate values for them
1116   // automatically when they are not explicitly defined.
1117   assert(!IO.outputting() ||
1118          (!Section.ShOffset && !Section.ShSize && !Section.ShName &&
1119           !Section.ShFlags && !Section.ShType && !Section.ShAddrAlign));
1120   IO.mapOptional("ShAddrAlign", Section.ShAddrAlign);
1121   IO.mapOptional("ShName", Section.ShName);
1122   IO.mapOptional("ShOffset", Section.ShOffset);
1123   IO.mapOptional("ShSize", Section.ShSize);
1124   IO.mapOptional("ShFlags", Section.ShFlags);
1125   IO.mapOptional("ShType", Section.ShType);
1126 }
1127 
1128 static void sectionMapping(IO &IO, ELFYAML::DynamicSection &Section) {
1129   commonSectionMapping(IO, Section);
1130   IO.mapOptional("Entries", Section.Entries);
1131 }
1132 
1133 static void sectionMapping(IO &IO, ELFYAML::RawContentSection &Section) {
1134   commonSectionMapping(IO, Section);
1135 
1136   // We also support reading a content as array of bytes using the ContentArray
1137   // key. obj2yaml never prints this field.
1138   assert(!IO.outputting() || !Section.ContentBuf.hasValue());
1139   IO.mapOptional("ContentArray", Section.ContentBuf);
1140   if (Section.ContentBuf) {
1141     if (Section.Content)
1142       IO.setError("Content and ContentArray can't be used together");
1143     Section.Content = yaml::BinaryRef(*Section.ContentBuf);
1144   }
1145 
1146   IO.mapOptional("Info", Section.Info);
1147 }
1148 
1149 static void sectionMapping(IO &IO, ELFYAML::StackSizesSection &Section) {
1150   commonSectionMapping(IO, Section);
1151   IO.mapOptional("Entries", Section.Entries);
1152 }
1153 
1154 static void sectionMapping(IO &IO, ELFYAML::HashSection &Section) {
1155   commonSectionMapping(IO, Section);
1156   IO.mapOptional("Bucket", Section.Bucket);
1157   IO.mapOptional("Chain", Section.Chain);
1158 
1159   // obj2yaml does not dump these fields. They can be used to override nchain
1160   // and nbucket values for creating broken sections.
1161   assert(!IO.outputting() ||
1162          (!Section.NBucket.hasValue() && !Section.NChain.hasValue()));
1163   IO.mapOptional("NChain", Section.NChain);
1164   IO.mapOptional("NBucket", Section.NBucket);
1165 }
1166 
1167 static void sectionMapping(IO &IO, ELFYAML::NoteSection &Section) {
1168   commonSectionMapping(IO, Section);
1169   IO.mapOptional("Notes", Section.Notes);
1170 }
1171 
1172 
1173 static void sectionMapping(IO &IO, ELFYAML::GnuHashSection &Section) {
1174   commonSectionMapping(IO, Section);
1175   IO.mapOptional("Header", Section.Header);
1176   IO.mapOptional("BloomFilter", Section.BloomFilter);
1177   IO.mapOptional("HashBuckets", Section.HashBuckets);
1178   IO.mapOptional("HashValues", Section.HashValues);
1179 }
1180 static void sectionMapping(IO &IO, ELFYAML::NoBitsSection &Section) {
1181   commonSectionMapping(IO, Section);
1182 }
1183 
1184 static void sectionMapping(IO &IO, ELFYAML::VerdefSection &Section) {
1185   commonSectionMapping(IO, Section);
1186   IO.mapRequired("Info", Section.Info);
1187   IO.mapOptional("Entries", Section.Entries);
1188 }
1189 
1190 static void sectionMapping(IO &IO, ELFYAML::SymverSection &Section) {
1191   commonSectionMapping(IO, Section);
1192   IO.mapOptional("Entries", Section.Entries);
1193 }
1194 
1195 static void sectionMapping(IO &IO, ELFYAML::VerneedSection &Section) {
1196   commonSectionMapping(IO, Section);
1197   IO.mapRequired("Info", Section.Info);
1198   IO.mapOptional("Dependencies", Section.VerneedV);
1199 }
1200 
1201 static void sectionMapping(IO &IO, ELFYAML::RelocationSection &Section) {
1202   commonSectionMapping(IO, Section);
1203   IO.mapOptional("Info", Section.RelocatableSec, StringRef());
1204   IO.mapOptional("Relocations", Section.Relocations);
1205 }
1206 
1207 static void sectionMapping(IO &IO, ELFYAML::RelrSection &Section) {
1208   commonSectionMapping(IO, Section);
1209   IO.mapOptional("Entries", Section.Entries);
1210 }
1211 
1212 static void groupSectionMapping(IO &IO, ELFYAML::GroupSection &Group) {
1213   commonSectionMapping(IO, Group);
1214   IO.mapOptional("Info", Group.Signature);
1215   IO.mapOptional("Members", Group.Members);
1216 }
1217 
1218 static void sectionMapping(IO &IO, ELFYAML::SymtabShndxSection &Section) {
1219   commonSectionMapping(IO, Section);
1220   IO.mapOptional("Entries", Section.Entries);
1221 }
1222 
1223 static void sectionMapping(IO &IO, ELFYAML::AddrsigSection &Section) {
1224   commonSectionMapping(IO, Section);
1225   IO.mapOptional("Symbols", Section.Symbols);
1226 }
1227 
1228 static void fillMapping(IO &IO, ELFYAML::Fill &Fill) {
1229   IO.mapOptional("Name", Fill.Name, StringRef());
1230   IO.mapOptional("Pattern", Fill.Pattern);
1231   IO.mapOptional("Offset", Fill.Offset);
1232   IO.mapRequired("Size", Fill.Size);
1233 }
1234 
1235 static void sectionMapping(IO &IO, ELFYAML::LinkerOptionsSection &Section) {
1236   commonSectionMapping(IO, Section);
1237   IO.mapOptional("Options", Section.Options);
1238 }
1239 
1240 static void sectionMapping(IO &IO,
1241                            ELFYAML::DependentLibrariesSection &Section) {
1242   commonSectionMapping(IO, Section);
1243   IO.mapOptional("Libraries", Section.Libs);
1244 }
1245 
1246 static void sectionMapping(IO &IO, ELFYAML::CallGraphProfileSection &Section) {
1247   commonSectionMapping(IO, Section);
1248   IO.mapOptional("Entries", Section.Entries);
1249 }
1250 
1251 void MappingTraits<ELFYAML::SectionOrType>::mapping(
1252     IO &IO, ELFYAML::SectionOrType &sectionOrType) {
1253   IO.mapRequired("SectionOrType", sectionOrType.sectionNameOrType);
1254 }
1255 
1256 void MappingTraits<ELFYAML::SectionName>::mapping(
1257     IO &IO, ELFYAML::SectionName &sectionName) {
1258   IO.mapRequired("Section", sectionName.Section);
1259 }
1260 
1261 static void sectionMapping(IO &IO, ELFYAML::ARMIndexTableSection &Section) {
1262   commonSectionMapping(IO, Section);
1263   IO.mapOptional("Entries", Section.Entries);
1264 }
1265 
1266 static void sectionMapping(IO &IO, ELFYAML::MipsABIFlags &Section) {
1267   commonSectionMapping(IO, Section);
1268   IO.mapOptional("Version", Section.Version, Hex16(0));
1269   IO.mapRequired("ISA", Section.ISALevel);
1270   IO.mapOptional("ISARevision", Section.ISARevision, Hex8(0));
1271   IO.mapOptional("ISAExtension", Section.ISAExtension,
1272                  ELFYAML::MIPS_AFL_EXT(Mips::AFL_EXT_NONE));
1273   IO.mapOptional("ASEs", Section.ASEs, ELFYAML::MIPS_AFL_ASE(0));
1274   IO.mapOptional("FpABI", Section.FpABI,
1275                  ELFYAML::MIPS_ABI_FP(Mips::Val_GNU_MIPS_ABI_FP_ANY));
1276   IO.mapOptional("GPRSize", Section.GPRSize,
1277                  ELFYAML::MIPS_AFL_REG(Mips::AFL_REG_NONE));
1278   IO.mapOptional("CPR1Size", Section.CPR1Size,
1279                  ELFYAML::MIPS_AFL_REG(Mips::AFL_REG_NONE));
1280   IO.mapOptional("CPR2Size", Section.CPR2Size,
1281                  ELFYAML::MIPS_AFL_REG(Mips::AFL_REG_NONE));
1282   IO.mapOptional("Flags1", Section.Flags1, ELFYAML::MIPS_AFL_FLAGS1(0));
1283   IO.mapOptional("Flags2", Section.Flags2, Hex32(0));
1284 }
1285 
1286 static StringRef getStringValue(IO &IO, const char *Key) {
1287   StringRef Val;
1288   IO.mapRequired(Key, Val);
1289   return Val;
1290 }
1291 
1292 void MappingTraits<std::unique_ptr<ELFYAML::Chunk>>::mapping(
1293     IO &IO, std::unique_ptr<ELFYAML::Chunk> &Section) {
1294   ELFYAML::ELF_SHT Type;
1295   if (IO.outputting()) {
1296     Type = cast<ELFYAML::Section>(Section.get())->Type;
1297   } else {
1298     // When the Type string does not have a "SHT_" prefix, we know it is not a
1299     // description of a regular ELF output section. Currently, we have one
1300     // special type named "Fill". See comments for Fill.
1301     if (getStringValue(IO, "Type") == "Fill") {
1302       Section.reset(new ELFYAML::Fill());
1303       fillMapping(IO, *cast<ELFYAML::Fill>(Section.get()));
1304       return;
1305     }
1306 
1307     IO.mapRequired("Type", Type);
1308   }
1309 
1310   const auto &Obj = *static_cast<ELFYAML::Object *>(IO.getContext());
1311   if (Obj.getMachine() == ELF::EM_MIPS && Type == ELF::SHT_MIPS_ABIFLAGS) {
1312     if (!IO.outputting())
1313       Section.reset(new ELFYAML::MipsABIFlags());
1314     sectionMapping(IO, *cast<ELFYAML::MipsABIFlags>(Section.get()));
1315     return;
1316   }
1317 
1318   if (Obj.getMachine() == ELF::EM_ARM && Type == ELF::SHT_ARM_EXIDX) {
1319     if (!IO.outputting())
1320       Section.reset(new ELFYAML::ARMIndexTableSection());
1321     sectionMapping(IO, *cast<ELFYAML::ARMIndexTableSection>(Section.get()));
1322     return;
1323   }
1324 
1325   switch (Type) {
1326   case ELF::SHT_DYNAMIC:
1327     if (!IO.outputting())
1328       Section.reset(new ELFYAML::DynamicSection());
1329     sectionMapping(IO, *cast<ELFYAML::DynamicSection>(Section.get()));
1330     break;
1331   case ELF::SHT_REL:
1332   case ELF::SHT_RELA:
1333     if (!IO.outputting())
1334       Section.reset(new ELFYAML::RelocationSection());
1335     sectionMapping(IO, *cast<ELFYAML::RelocationSection>(Section.get()));
1336     break;
1337   case ELF::SHT_RELR:
1338     if (!IO.outputting())
1339       Section.reset(new ELFYAML::RelrSection());
1340     sectionMapping(IO, *cast<ELFYAML::RelrSection>(Section.get()));
1341     break;
1342   case ELF::SHT_GROUP:
1343     if (!IO.outputting())
1344       Section.reset(new ELFYAML::GroupSection());
1345     groupSectionMapping(IO, *cast<ELFYAML::GroupSection>(Section.get()));
1346     break;
1347   case ELF::SHT_NOBITS:
1348     if (!IO.outputting())
1349       Section.reset(new ELFYAML::NoBitsSection());
1350     sectionMapping(IO, *cast<ELFYAML::NoBitsSection>(Section.get()));
1351     break;
1352   case ELF::SHT_HASH:
1353     if (!IO.outputting())
1354       Section.reset(new ELFYAML::HashSection());
1355     sectionMapping(IO, *cast<ELFYAML::HashSection>(Section.get()));
1356     break;
1357   case ELF::SHT_NOTE:
1358     if (!IO.outputting())
1359       Section.reset(new ELFYAML::NoteSection());
1360     sectionMapping(IO, *cast<ELFYAML::NoteSection>(Section.get()));
1361     break;
1362  case ELF::SHT_GNU_HASH:
1363     if (!IO.outputting())
1364       Section.reset(new ELFYAML::GnuHashSection());
1365     sectionMapping(IO, *cast<ELFYAML::GnuHashSection>(Section.get()));
1366     break;
1367   case ELF::SHT_GNU_verdef:
1368     if (!IO.outputting())
1369       Section.reset(new ELFYAML::VerdefSection());
1370     sectionMapping(IO, *cast<ELFYAML::VerdefSection>(Section.get()));
1371     break;
1372   case ELF::SHT_GNU_versym:
1373     if (!IO.outputting())
1374       Section.reset(new ELFYAML::SymverSection());
1375     sectionMapping(IO, *cast<ELFYAML::SymverSection>(Section.get()));
1376     break;
1377   case ELF::SHT_GNU_verneed:
1378     if (!IO.outputting())
1379       Section.reset(new ELFYAML::VerneedSection());
1380     sectionMapping(IO, *cast<ELFYAML::VerneedSection>(Section.get()));
1381     break;
1382   case ELF::SHT_SYMTAB_SHNDX:
1383     if (!IO.outputting())
1384       Section.reset(new ELFYAML::SymtabShndxSection());
1385     sectionMapping(IO, *cast<ELFYAML::SymtabShndxSection>(Section.get()));
1386     break;
1387   case ELF::SHT_LLVM_ADDRSIG:
1388     if (!IO.outputting())
1389       Section.reset(new ELFYAML::AddrsigSection());
1390     sectionMapping(IO, *cast<ELFYAML::AddrsigSection>(Section.get()));
1391     break;
1392   case ELF::SHT_LLVM_LINKER_OPTIONS:
1393     if (!IO.outputting())
1394       Section.reset(new ELFYAML::LinkerOptionsSection());
1395     sectionMapping(IO, *cast<ELFYAML::LinkerOptionsSection>(Section.get()));
1396     break;
1397   case ELF::SHT_LLVM_DEPENDENT_LIBRARIES:
1398     if (!IO.outputting())
1399       Section.reset(new ELFYAML::DependentLibrariesSection());
1400     sectionMapping(IO,
1401                    *cast<ELFYAML::DependentLibrariesSection>(Section.get()));
1402     break;
1403   case ELF::SHT_LLVM_CALL_GRAPH_PROFILE:
1404     if (!IO.outputting())
1405       Section.reset(new ELFYAML::CallGraphProfileSection());
1406     sectionMapping(IO, *cast<ELFYAML::CallGraphProfileSection>(Section.get()));
1407     break;
1408   default:
1409     if (!IO.outputting()) {
1410       StringRef Name;
1411       IO.mapOptional("Name", Name, StringRef());
1412       Name = ELFYAML::dropUniqueSuffix(Name);
1413 
1414       if (ELFYAML::StackSizesSection::nameMatches(Name))
1415         Section = std::make_unique<ELFYAML::StackSizesSection>();
1416       else
1417         Section = std::make_unique<ELFYAML::RawContentSection>();
1418     }
1419 
1420     if (auto S = dyn_cast<ELFYAML::RawContentSection>(Section.get()))
1421       sectionMapping(IO, *S);
1422     else
1423       sectionMapping(IO, *cast<ELFYAML::StackSizesSection>(Section.get()));
1424   }
1425 }
1426 
1427 std::string MappingTraits<std::unique_ptr<ELFYAML::Chunk>>::validate(
1428     IO &io, std::unique_ptr<ELFYAML::Chunk> &C) {
1429   if (const auto *F = dyn_cast<ELFYAML::Fill>(C.get())) {
1430     if (F->Pattern && F->Pattern->binary_size() != 0 && !F->Size)
1431       return "\"Size\" can't be 0 when \"Pattern\" is not empty";
1432     return "";
1433   }
1434 
1435   const ELFYAML::Section &Sec = *cast<ELFYAML::Section>(C.get());
1436   if (Sec.Size && Sec.Content &&
1437       (uint64_t)(*Sec.Size) < Sec.Content->binary_size())
1438     return "Section size must be greater than or equal to the content size";
1439 
1440   auto BuildErrPrefix = [](ArrayRef<std::pair<StringRef, bool>> EntV) {
1441     std::string Msg;
1442     for (size_t I = 0, E = EntV.size(); I != E; ++I) {
1443       StringRef Name = EntV[I].first;
1444       if (I == 0) {
1445         Msg = "\"" + Name.str() + "\"";
1446         continue;
1447       }
1448       if (I != EntV.size() - 1)
1449         Msg += ", \"" + Name.str() + "\"";
1450       else
1451         Msg += " and \"" + Name.str() + "\"";
1452     }
1453     return Msg;
1454   };
1455 
1456   std::vector<std::pair<StringRef, bool>> Entries = Sec.getEntries();
1457   const size_t NumUsedEntries = llvm::count_if(
1458       Entries, [](const std::pair<StringRef, bool> &P) { return P.second; });
1459 
1460   if ((Sec.Size || Sec.Content) && NumUsedEntries > 0)
1461     return BuildErrPrefix(Entries) +
1462            " cannot be used with \"Content\" or \"Size\"";
1463 
1464   if (NumUsedEntries > 0 && Entries.size() != NumUsedEntries)
1465     return BuildErrPrefix(Entries) + " must be used together";
1466 
1467   if (const auto *RawSection = dyn_cast<ELFYAML::RawContentSection>(C.get())) {
1468     if (RawSection->Flags && RawSection->ShFlags)
1469       return "ShFlags and Flags cannot be used together";
1470     return "";
1471   }
1472 
1473   if (const auto *NB = dyn_cast<ELFYAML::NoBitsSection>(C.get())) {
1474     if (NB->Content)
1475       return "SHT_NOBITS section cannot have \"Content\"";
1476     return "";
1477   }
1478 
1479   if (const auto *MF = dyn_cast<ELFYAML::MipsABIFlags>(C.get())) {
1480     if (MF->Content)
1481       return "\"Content\" key is not implemented for SHT_MIPS_ABIFLAGS "
1482              "sections";
1483     if (MF->Size)
1484       return "\"Size\" key is not implemented for SHT_MIPS_ABIFLAGS sections";
1485     return "";
1486   }
1487 
1488   return "";
1489 }
1490 
1491 namespace {
1492 
1493 struct NormalizedMips64RelType {
1494   NormalizedMips64RelType(IO &)
1495       : Type(ELFYAML::ELF_REL(ELF::R_MIPS_NONE)),
1496         Type2(ELFYAML::ELF_REL(ELF::R_MIPS_NONE)),
1497         Type3(ELFYAML::ELF_REL(ELF::R_MIPS_NONE)),
1498         SpecSym(ELFYAML::ELF_REL(ELF::RSS_UNDEF)) {}
1499   NormalizedMips64RelType(IO &, ELFYAML::ELF_REL Original)
1500       : Type(Original & 0xFF), Type2(Original >> 8 & 0xFF),
1501         Type3(Original >> 16 & 0xFF), SpecSym(Original >> 24 & 0xFF) {}
1502 
1503   ELFYAML::ELF_REL denormalize(IO &) {
1504     ELFYAML::ELF_REL Res = Type | Type2 << 8 | Type3 << 16 | SpecSym << 24;
1505     return Res;
1506   }
1507 
1508   ELFYAML::ELF_REL Type;
1509   ELFYAML::ELF_REL Type2;
1510   ELFYAML::ELF_REL Type3;
1511   ELFYAML::ELF_RSS SpecSym;
1512 };
1513 
1514 } // end anonymous namespace
1515 
1516 void MappingTraits<ELFYAML::StackSizeEntry>::mapping(
1517     IO &IO, ELFYAML::StackSizeEntry &E) {
1518   assert(IO.getContext() && "The IO context is not initialized");
1519   IO.mapOptional("Address", E.Address, Hex64(0));
1520   IO.mapRequired("Size", E.Size);
1521 }
1522 
1523 void MappingTraits<ELFYAML::GnuHashHeader>::mapping(IO &IO,
1524                                                     ELFYAML::GnuHashHeader &E) {
1525   assert(IO.getContext() && "The IO context is not initialized");
1526   IO.mapOptional("NBuckets", E.NBuckets);
1527   IO.mapRequired("SymNdx", E.SymNdx);
1528   IO.mapOptional("MaskWords", E.MaskWords);
1529   IO.mapRequired("Shift2", E.Shift2);
1530 }
1531 
1532 void MappingTraits<ELFYAML::DynamicEntry>::mapping(IO &IO,
1533                                                    ELFYAML::DynamicEntry &Rel) {
1534   assert(IO.getContext() && "The IO context is not initialized");
1535 
1536   IO.mapRequired("Tag", Rel.Tag);
1537   IO.mapRequired("Value", Rel.Val);
1538 }
1539 
1540 void MappingTraits<ELFYAML::NoteEntry>::mapping(IO &IO, ELFYAML::NoteEntry &N) {
1541   assert(IO.getContext() && "The IO context is not initialized");
1542 
1543   IO.mapOptional("Name", N.Name);
1544   IO.mapOptional("Desc", N.Desc);
1545   IO.mapRequired("Type", N.Type);
1546 }
1547 
1548 void MappingTraits<ELFYAML::VerdefEntry>::mapping(IO &IO,
1549                                                   ELFYAML::VerdefEntry &E) {
1550   assert(IO.getContext() && "The IO context is not initialized");
1551 
1552   IO.mapRequired("Version", E.Version);
1553   IO.mapRequired("Flags", E.Flags);
1554   IO.mapRequired("VersionNdx", E.VersionNdx);
1555   IO.mapRequired("Hash", E.Hash);
1556   IO.mapRequired("Names", E.VerNames);
1557 }
1558 
1559 void MappingTraits<ELFYAML::VerneedEntry>::mapping(IO &IO,
1560                                                    ELFYAML::VerneedEntry &E) {
1561   assert(IO.getContext() && "The IO context is not initialized");
1562 
1563   IO.mapRequired("Version", E.Version);
1564   IO.mapRequired("File", E.File);
1565   IO.mapRequired("Entries", E.AuxV);
1566 }
1567 
1568 void MappingTraits<ELFYAML::VernauxEntry>::mapping(IO &IO,
1569                                                    ELFYAML::VernauxEntry &E) {
1570   assert(IO.getContext() && "The IO context is not initialized");
1571 
1572   IO.mapRequired("Name", E.Name);
1573   IO.mapRequired("Hash", E.Hash);
1574   IO.mapRequired("Flags", E.Flags);
1575   IO.mapRequired("Other", E.Other);
1576 }
1577 
1578 void MappingTraits<ELFYAML::Relocation>::mapping(IO &IO,
1579                                                  ELFYAML::Relocation &Rel) {
1580   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
1581   assert(Object && "The IO context is not initialized");
1582 
1583   IO.mapOptional("Offset", Rel.Offset, (Hex64)0);
1584   IO.mapOptional("Symbol", Rel.Symbol);
1585 
1586   if (Object->getMachine() == ELFYAML::ELF_EM(ELF::EM_MIPS) &&
1587       Object->Header.Class == ELFYAML::ELF_ELFCLASS(ELF::ELFCLASS64)) {
1588     MappingNormalization<NormalizedMips64RelType, ELFYAML::ELF_REL> Key(
1589         IO, Rel.Type);
1590     IO.mapRequired("Type", Key->Type);
1591     IO.mapOptional("Type2", Key->Type2, ELFYAML::ELF_REL(ELF::R_MIPS_NONE));
1592     IO.mapOptional("Type3", Key->Type3, ELFYAML::ELF_REL(ELF::R_MIPS_NONE));
1593     IO.mapOptional("SpecSym", Key->SpecSym, ELFYAML::ELF_RSS(ELF::RSS_UNDEF));
1594   } else
1595     IO.mapRequired("Type", Rel.Type);
1596 
1597   IO.mapOptional("Addend", Rel.Addend, (ELFYAML::YAMLIntUInt)0);
1598 }
1599 
1600 void MappingTraits<ELFYAML::ARMIndexTableEntry>::mapping(
1601     IO &IO, ELFYAML::ARMIndexTableEntry &E) {
1602   assert(IO.getContext() && "The IO context is not initialized");
1603   IO.mapRequired("Offset", E.Offset);
1604 
1605   StringRef CantUnwind = "EXIDX_CANTUNWIND";
1606   if (IO.outputting() && (uint32_t)E.Value == ARM::EHABI::EXIDX_CANTUNWIND)
1607     IO.mapRequired("Value", CantUnwind);
1608   else if (!IO.outputting() && getStringValue(IO, "Value") == CantUnwind)
1609     E.Value = ARM::EHABI::EXIDX_CANTUNWIND;
1610   else
1611     IO.mapRequired("Value", E.Value);
1612 }
1613 
1614 void MappingTraits<ELFYAML::Object>::mapping(IO &IO, ELFYAML::Object &Object) {
1615   assert(!IO.getContext() && "The IO context is initialized already");
1616   IO.setContext(&Object);
1617   IO.mapTag("!ELF", true);
1618   IO.mapRequired("FileHeader", Object.Header);
1619   IO.mapOptional("SectionHeaderTable", Object.SectionHeaders);
1620   IO.mapOptional("ProgramHeaders", Object.ProgramHeaders);
1621   IO.mapOptional("Sections", Object.Chunks);
1622   IO.mapOptional("Symbols", Object.Symbols);
1623   IO.mapOptional("DynamicSymbols", Object.DynamicSymbols);
1624   IO.mapOptional("DWARF", Object.DWARF);
1625   if (Object.DWARF) {
1626     Object.DWARF->IsLittleEndian =
1627         Object.Header.Data == ELFYAML::ELF_ELFDATA(ELF::ELFDATA2LSB);
1628     Object.DWARF->Is64BitAddrSize =
1629         Object.Header.Class == ELFYAML::ELF_ELFCLASS(ELF::ELFCLASS64);
1630   }
1631   IO.setContext(nullptr);
1632 }
1633 
1634 void MappingTraits<ELFYAML::LinkerOption>::mapping(IO &IO,
1635                                                    ELFYAML::LinkerOption &Opt) {
1636   assert(IO.getContext() && "The IO context is not initialized");
1637   IO.mapRequired("Name", Opt.Key);
1638   IO.mapRequired("Value", Opt.Value);
1639 }
1640 
1641 void MappingTraits<ELFYAML::CallGraphEntry>::mapping(
1642     IO &IO, ELFYAML::CallGraphEntry &E) {
1643   assert(IO.getContext() && "The IO context is not initialized");
1644   IO.mapRequired("From", E.From);
1645   IO.mapRequired("To", E.To);
1646   IO.mapRequired("Weight", E.Weight);
1647 }
1648 
1649 LLVM_YAML_STRONG_TYPEDEF(uint8_t, MIPS_AFL_REG)
1650 LLVM_YAML_STRONG_TYPEDEF(uint8_t, MIPS_ABI_FP)
1651 LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_AFL_EXT)
1652 LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_AFL_ASE)
1653 LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_AFL_FLAGS1)
1654 
1655 } // end namespace yaml
1656 
1657 } // end namespace llvm
1658