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