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_LINUX);
257   ECase(ELFOSABI_HURD);
258   ECase(ELFOSABI_SOLARIS);
259   ECase(ELFOSABI_AIX);
260   ECase(ELFOSABI_IRIX);
261   ECase(ELFOSABI_FREEBSD);
262   ECase(ELFOSABI_TRU64);
263   ECase(ELFOSABI_MODESTO);
264   ECase(ELFOSABI_OPENBSD);
265   ECase(ELFOSABI_OPENVMS);
266   ECase(ELFOSABI_NSK);
267   ECase(ELFOSABI_AROS);
268   ECase(ELFOSABI_FENIXOS);
269   ECase(ELFOSABI_CLOUDABI);
270   ECase(ELFOSABI_AMDGPU_HSA);
271   ECase(ELFOSABI_AMDGPU_PAL);
272   ECase(ELFOSABI_AMDGPU_MESA3D);
273   ECase(ELFOSABI_ARM);
274   ECase(ELFOSABI_C6000_ELFABI);
275   ECase(ELFOSABI_C6000_LINUX);
276   ECase(ELFOSABI_STANDALONE);
277 #undef ECase
278   IO.enumFallback<Hex8>(Value);
279 }
280 
281 void ScalarBitSetTraits<ELFYAML::ELF_EF>::bitset(IO &IO,
282                                                  ELFYAML::ELF_EF &Value) {
283   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
284   assert(Object && "The IO context is not initialized");
285 #define BCase(X) IO.bitSetCase(Value, #X, ELF::X)
286 #define BCaseMask(X, M) IO.maskedBitSetCase(Value, #X, ELF::X, ELF::M)
287   switch (Object->Header.Machine) {
288   case ELF::EM_ARM:
289     BCase(EF_ARM_SOFT_FLOAT);
290     BCase(EF_ARM_VFP_FLOAT);
291     BCaseMask(EF_ARM_EABI_UNKNOWN, EF_ARM_EABIMASK);
292     BCaseMask(EF_ARM_EABI_VER1, EF_ARM_EABIMASK);
293     BCaseMask(EF_ARM_EABI_VER2, EF_ARM_EABIMASK);
294     BCaseMask(EF_ARM_EABI_VER3, EF_ARM_EABIMASK);
295     BCaseMask(EF_ARM_EABI_VER4, EF_ARM_EABIMASK);
296     BCaseMask(EF_ARM_EABI_VER5, EF_ARM_EABIMASK);
297     break;
298   case ELF::EM_MIPS:
299     BCase(EF_MIPS_NOREORDER);
300     BCase(EF_MIPS_PIC);
301     BCase(EF_MIPS_CPIC);
302     BCase(EF_MIPS_ABI2);
303     BCase(EF_MIPS_32BITMODE);
304     BCase(EF_MIPS_FP64);
305     BCase(EF_MIPS_NAN2008);
306     BCase(EF_MIPS_MICROMIPS);
307     BCase(EF_MIPS_ARCH_ASE_M16);
308     BCase(EF_MIPS_ARCH_ASE_MDMX);
309     BCaseMask(EF_MIPS_ABI_O32, EF_MIPS_ABI);
310     BCaseMask(EF_MIPS_ABI_O64, EF_MIPS_ABI);
311     BCaseMask(EF_MIPS_ABI_EABI32, EF_MIPS_ABI);
312     BCaseMask(EF_MIPS_ABI_EABI64, EF_MIPS_ABI);
313     BCaseMask(EF_MIPS_MACH_3900, EF_MIPS_MACH);
314     BCaseMask(EF_MIPS_MACH_4010, EF_MIPS_MACH);
315     BCaseMask(EF_MIPS_MACH_4100, EF_MIPS_MACH);
316     BCaseMask(EF_MIPS_MACH_4650, EF_MIPS_MACH);
317     BCaseMask(EF_MIPS_MACH_4120, EF_MIPS_MACH);
318     BCaseMask(EF_MIPS_MACH_4111, EF_MIPS_MACH);
319     BCaseMask(EF_MIPS_MACH_SB1, EF_MIPS_MACH);
320     BCaseMask(EF_MIPS_MACH_OCTEON, EF_MIPS_MACH);
321     BCaseMask(EF_MIPS_MACH_XLR, EF_MIPS_MACH);
322     BCaseMask(EF_MIPS_MACH_OCTEON2, EF_MIPS_MACH);
323     BCaseMask(EF_MIPS_MACH_OCTEON3, EF_MIPS_MACH);
324     BCaseMask(EF_MIPS_MACH_5400, EF_MIPS_MACH);
325     BCaseMask(EF_MIPS_MACH_5900, EF_MIPS_MACH);
326     BCaseMask(EF_MIPS_MACH_5500, EF_MIPS_MACH);
327     BCaseMask(EF_MIPS_MACH_9000, EF_MIPS_MACH);
328     BCaseMask(EF_MIPS_MACH_LS2E, EF_MIPS_MACH);
329     BCaseMask(EF_MIPS_MACH_LS2F, EF_MIPS_MACH);
330     BCaseMask(EF_MIPS_MACH_LS3A, EF_MIPS_MACH);
331     BCaseMask(EF_MIPS_ARCH_1, EF_MIPS_ARCH);
332     BCaseMask(EF_MIPS_ARCH_2, EF_MIPS_ARCH);
333     BCaseMask(EF_MIPS_ARCH_3, EF_MIPS_ARCH);
334     BCaseMask(EF_MIPS_ARCH_4, EF_MIPS_ARCH);
335     BCaseMask(EF_MIPS_ARCH_5, EF_MIPS_ARCH);
336     BCaseMask(EF_MIPS_ARCH_32, EF_MIPS_ARCH);
337     BCaseMask(EF_MIPS_ARCH_64, EF_MIPS_ARCH);
338     BCaseMask(EF_MIPS_ARCH_32R2, EF_MIPS_ARCH);
339     BCaseMask(EF_MIPS_ARCH_64R2, EF_MIPS_ARCH);
340     BCaseMask(EF_MIPS_ARCH_32R6, EF_MIPS_ARCH);
341     BCaseMask(EF_MIPS_ARCH_64R6, EF_MIPS_ARCH);
342     break;
343   case ELF::EM_HEXAGON:
344     BCase(EF_HEXAGON_MACH_V2);
345     BCase(EF_HEXAGON_MACH_V3);
346     BCase(EF_HEXAGON_MACH_V4);
347     BCase(EF_HEXAGON_MACH_V5);
348     BCase(EF_HEXAGON_MACH_V55);
349     BCase(EF_HEXAGON_MACH_V60);
350     BCase(EF_HEXAGON_MACH_V62);
351     BCase(EF_HEXAGON_MACH_V65);
352     BCase(EF_HEXAGON_ISA_V2);
353     BCase(EF_HEXAGON_ISA_V3);
354     BCase(EF_HEXAGON_ISA_V4);
355     BCase(EF_HEXAGON_ISA_V5);
356     BCase(EF_HEXAGON_ISA_V55);
357     BCase(EF_HEXAGON_ISA_V60);
358     BCase(EF_HEXAGON_ISA_V62);
359     BCase(EF_HEXAGON_ISA_V65);
360     break;
361   case ELF::EM_AVR:
362     BCase(EF_AVR_ARCH_AVR1);
363     BCase(EF_AVR_ARCH_AVR2);
364     BCase(EF_AVR_ARCH_AVR25);
365     BCase(EF_AVR_ARCH_AVR3);
366     BCase(EF_AVR_ARCH_AVR31);
367     BCase(EF_AVR_ARCH_AVR35);
368     BCase(EF_AVR_ARCH_AVR4);
369     BCase(EF_AVR_ARCH_AVR51);
370     BCase(EF_AVR_ARCH_AVR6);
371     BCase(EF_AVR_ARCH_AVRTINY);
372     BCase(EF_AVR_ARCH_XMEGA1);
373     BCase(EF_AVR_ARCH_XMEGA2);
374     BCase(EF_AVR_ARCH_XMEGA3);
375     BCase(EF_AVR_ARCH_XMEGA4);
376     BCase(EF_AVR_ARCH_XMEGA5);
377     BCase(EF_AVR_ARCH_XMEGA6);
378     BCase(EF_AVR_ARCH_XMEGA7);
379     break;
380   case ELF::EM_RISCV:
381     BCase(EF_RISCV_RVC);
382     BCaseMask(EF_RISCV_FLOAT_ABI_SOFT, EF_RISCV_FLOAT_ABI);
383     BCaseMask(EF_RISCV_FLOAT_ABI_SINGLE, EF_RISCV_FLOAT_ABI);
384     BCaseMask(EF_RISCV_FLOAT_ABI_DOUBLE, EF_RISCV_FLOAT_ABI);
385     BCaseMask(EF_RISCV_FLOAT_ABI_QUAD, EF_RISCV_FLOAT_ABI);
386     BCase(EF_RISCV_RVE);
387     break;
388   case ELF::EM_AMDGPU:
389     BCaseMask(EF_AMDGPU_MACH_NONE, EF_AMDGPU_MACH);
390     BCaseMask(EF_AMDGPU_MACH_R600_R600, EF_AMDGPU_MACH);
391     BCaseMask(EF_AMDGPU_MACH_R600_R630, EF_AMDGPU_MACH);
392     BCaseMask(EF_AMDGPU_MACH_R600_RS880, EF_AMDGPU_MACH);
393     BCaseMask(EF_AMDGPU_MACH_R600_RV670, EF_AMDGPU_MACH);
394     BCaseMask(EF_AMDGPU_MACH_R600_RV710, EF_AMDGPU_MACH);
395     BCaseMask(EF_AMDGPU_MACH_R600_RV730, EF_AMDGPU_MACH);
396     BCaseMask(EF_AMDGPU_MACH_R600_RV770, EF_AMDGPU_MACH);
397     BCaseMask(EF_AMDGPU_MACH_R600_CEDAR, EF_AMDGPU_MACH);
398     BCaseMask(EF_AMDGPU_MACH_R600_CYPRESS, EF_AMDGPU_MACH);
399     BCaseMask(EF_AMDGPU_MACH_R600_JUNIPER, EF_AMDGPU_MACH);
400     BCaseMask(EF_AMDGPU_MACH_R600_REDWOOD, EF_AMDGPU_MACH);
401     BCaseMask(EF_AMDGPU_MACH_R600_SUMO, EF_AMDGPU_MACH);
402     BCaseMask(EF_AMDGPU_MACH_R600_BARTS, EF_AMDGPU_MACH);
403     BCaseMask(EF_AMDGPU_MACH_R600_CAICOS, EF_AMDGPU_MACH);
404     BCaseMask(EF_AMDGPU_MACH_R600_CAYMAN, EF_AMDGPU_MACH);
405     BCaseMask(EF_AMDGPU_MACH_R600_TURKS, EF_AMDGPU_MACH);
406     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX600, EF_AMDGPU_MACH);
407     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX601, EF_AMDGPU_MACH);
408     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX700, EF_AMDGPU_MACH);
409     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX701, EF_AMDGPU_MACH);
410     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX702, EF_AMDGPU_MACH);
411     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX703, EF_AMDGPU_MACH);
412     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX704, EF_AMDGPU_MACH);
413     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX801, EF_AMDGPU_MACH);
414     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX802, EF_AMDGPU_MACH);
415     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX803, EF_AMDGPU_MACH);
416     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX810, EF_AMDGPU_MACH);
417     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX900, EF_AMDGPU_MACH);
418     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX902, EF_AMDGPU_MACH);
419     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX904, EF_AMDGPU_MACH);
420     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX906, EF_AMDGPU_MACH);
421     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX908, EF_AMDGPU_MACH);
422     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX909, EF_AMDGPU_MACH);
423     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX1010, EF_AMDGPU_MACH);
424     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX1011, EF_AMDGPU_MACH);
425     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX1012, EF_AMDGPU_MACH);
426     BCase(EF_AMDGPU_XNACK);
427     BCase(EF_AMDGPU_SRAM_ECC);
428     break;
429   case ELF::EM_X86_64:
430     break;
431   default:
432     llvm_unreachable("Unsupported architecture");
433   }
434 #undef BCase
435 #undef BCaseMask
436 }
437 
438 void ScalarEnumerationTraits<ELFYAML::ELF_SHT>::enumeration(
439     IO &IO, ELFYAML::ELF_SHT &Value) {
440   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
441   assert(Object && "The IO context is not initialized");
442 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
443   ECase(SHT_NULL);
444   ECase(SHT_PROGBITS);
445   ECase(SHT_SYMTAB);
446   // FIXME: Issue a diagnostic with this information.
447   ECase(SHT_STRTAB);
448   ECase(SHT_RELA);
449   ECase(SHT_HASH);
450   ECase(SHT_DYNAMIC);
451   ECase(SHT_NOTE);
452   ECase(SHT_NOBITS);
453   ECase(SHT_REL);
454   ECase(SHT_SHLIB);
455   ECase(SHT_DYNSYM);
456   ECase(SHT_INIT_ARRAY);
457   ECase(SHT_FINI_ARRAY);
458   ECase(SHT_PREINIT_ARRAY);
459   ECase(SHT_GROUP);
460   ECase(SHT_SYMTAB_SHNDX);
461   ECase(SHT_RELR);
462   ECase(SHT_ANDROID_REL);
463   ECase(SHT_ANDROID_RELA);
464   ECase(SHT_ANDROID_RELR);
465   ECase(SHT_LLVM_ODRTAB);
466   ECase(SHT_LLVM_LINKER_OPTIONS);
467   ECase(SHT_LLVM_CALL_GRAPH_PROFILE);
468   ECase(SHT_LLVM_ADDRSIG);
469   ECase(SHT_LLVM_DEPENDENT_LIBRARIES);
470   ECase(SHT_LLVM_SYMPART);
471   ECase(SHT_LLVM_PART_EHDR);
472   ECase(SHT_LLVM_PART_PHDR);
473   ECase(SHT_GNU_ATTRIBUTES);
474   ECase(SHT_GNU_HASH);
475   ECase(SHT_GNU_verdef);
476   ECase(SHT_GNU_verneed);
477   ECase(SHT_GNU_versym);
478   switch (Object->Header.Machine) {
479   case ELF::EM_ARM:
480     ECase(SHT_ARM_EXIDX);
481     ECase(SHT_ARM_PREEMPTMAP);
482     ECase(SHT_ARM_ATTRIBUTES);
483     ECase(SHT_ARM_DEBUGOVERLAY);
484     ECase(SHT_ARM_OVERLAYSECTION);
485     break;
486   case ELF::EM_HEXAGON:
487     ECase(SHT_HEX_ORDERED);
488     break;
489   case ELF::EM_X86_64:
490     ECase(SHT_X86_64_UNWIND);
491     break;
492   case ELF::EM_MIPS:
493     ECase(SHT_MIPS_REGINFO);
494     ECase(SHT_MIPS_OPTIONS);
495     ECase(SHT_MIPS_DWARF);
496     ECase(SHT_MIPS_ABIFLAGS);
497     break;
498   default:
499     // Nothing to do.
500     break;
501   }
502 #undef ECase
503   IO.enumFallback<Hex32>(Value);
504 }
505 
506 void ScalarBitSetTraits<ELFYAML::ELF_PF>::bitset(IO &IO,
507                                                  ELFYAML::ELF_PF &Value) {
508 #define BCase(X) IO.bitSetCase(Value, #X, ELF::X)
509   BCase(PF_X);
510   BCase(PF_W);
511   BCase(PF_R);
512 }
513 
514 void ScalarBitSetTraits<ELFYAML::ELF_SHF>::bitset(IO &IO,
515                                                   ELFYAML::ELF_SHF &Value) {
516   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
517 #define BCase(X) IO.bitSetCase(Value, #X, ELF::X)
518   BCase(SHF_WRITE);
519   BCase(SHF_ALLOC);
520   BCase(SHF_EXCLUDE);
521   BCase(SHF_EXECINSTR);
522   BCase(SHF_MERGE);
523   BCase(SHF_STRINGS);
524   BCase(SHF_INFO_LINK);
525   BCase(SHF_LINK_ORDER);
526   BCase(SHF_OS_NONCONFORMING);
527   BCase(SHF_GROUP);
528   BCase(SHF_TLS);
529   BCase(SHF_COMPRESSED);
530   switch (Object->Header.Machine) {
531   case ELF::EM_ARM:
532     BCase(SHF_ARM_PURECODE);
533     break;
534   case ELF::EM_HEXAGON:
535     BCase(SHF_HEX_GPREL);
536     break;
537   case ELF::EM_MIPS:
538     BCase(SHF_MIPS_NODUPES);
539     BCase(SHF_MIPS_NAMES);
540     BCase(SHF_MIPS_LOCAL);
541     BCase(SHF_MIPS_NOSTRIP);
542     BCase(SHF_MIPS_GPREL);
543     BCase(SHF_MIPS_MERGE);
544     BCase(SHF_MIPS_ADDR);
545     BCase(SHF_MIPS_STRING);
546     break;
547   case ELF::EM_X86_64:
548     BCase(SHF_X86_64_LARGE);
549     break;
550   default:
551     // Nothing to do.
552     break;
553   }
554 #undef BCase
555 }
556 
557 void ScalarEnumerationTraits<ELFYAML::ELF_SHN>::enumeration(
558     IO &IO, ELFYAML::ELF_SHN &Value) {
559 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
560   ECase(SHN_UNDEF);
561   ECase(SHN_LORESERVE);
562   ECase(SHN_LOPROC);
563   ECase(SHN_HIPROC);
564   ECase(SHN_LOOS);
565   ECase(SHN_HIOS);
566   ECase(SHN_ABS);
567   ECase(SHN_COMMON);
568   ECase(SHN_XINDEX);
569   ECase(SHN_HIRESERVE);
570   ECase(SHN_AMDGPU_LDS);
571   ECase(SHN_HEXAGON_SCOMMON);
572   ECase(SHN_HEXAGON_SCOMMON_1);
573   ECase(SHN_HEXAGON_SCOMMON_2);
574   ECase(SHN_HEXAGON_SCOMMON_4);
575   ECase(SHN_HEXAGON_SCOMMON_8);
576 #undef ECase
577   IO.enumFallback<Hex16>(Value);
578 }
579 
580 void ScalarEnumerationTraits<ELFYAML::ELF_STB>::enumeration(
581     IO &IO, ELFYAML::ELF_STB &Value) {
582 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
583   ECase(STB_LOCAL);
584   ECase(STB_GLOBAL);
585   ECase(STB_WEAK);
586   ECase(STB_GNU_UNIQUE);
587 #undef ECase
588   IO.enumFallback<Hex8>(Value);
589 }
590 
591 void ScalarEnumerationTraits<ELFYAML::ELF_STT>::enumeration(
592     IO &IO, ELFYAML::ELF_STT &Value) {
593 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
594   ECase(STT_NOTYPE);
595   ECase(STT_OBJECT);
596   ECase(STT_FUNC);
597   ECase(STT_SECTION);
598   ECase(STT_FILE);
599   ECase(STT_COMMON);
600   ECase(STT_TLS);
601   ECase(STT_GNU_IFUNC);
602 #undef ECase
603   IO.enumFallback<Hex8>(Value);
604 }
605 
606 
607 void ScalarEnumerationTraits<ELFYAML::ELF_RSS>::enumeration(
608     IO &IO, ELFYAML::ELF_RSS &Value) {
609 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
610   ECase(RSS_UNDEF);
611   ECase(RSS_GP);
612   ECase(RSS_GP0);
613   ECase(RSS_LOC);
614 #undef ECase
615 }
616 
617 void ScalarEnumerationTraits<ELFYAML::ELF_REL>::enumeration(
618     IO &IO, ELFYAML::ELF_REL &Value) {
619   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
620   assert(Object && "The IO context is not initialized");
621 #define ELF_RELOC(X, Y) IO.enumCase(Value, #X, ELF::X);
622   switch (Object->Header.Machine) {
623   case ELF::EM_X86_64:
624 #include "llvm/BinaryFormat/ELFRelocs/x86_64.def"
625     break;
626   case ELF::EM_MIPS:
627 #include "llvm/BinaryFormat/ELFRelocs/Mips.def"
628     break;
629   case ELF::EM_HEXAGON:
630 #include "llvm/BinaryFormat/ELFRelocs/Hexagon.def"
631     break;
632   case ELF::EM_386:
633   case ELF::EM_IAMCU:
634 #include "llvm/BinaryFormat/ELFRelocs/i386.def"
635     break;
636   case ELF::EM_AARCH64:
637 #include "llvm/BinaryFormat/ELFRelocs/AArch64.def"
638     break;
639   case ELF::EM_ARM:
640 #include "llvm/BinaryFormat/ELFRelocs/ARM.def"
641     break;
642   case ELF::EM_ARC:
643 #include "llvm/BinaryFormat/ELFRelocs/ARC.def"
644     break;
645   case ELF::EM_RISCV:
646 #include "llvm/BinaryFormat/ELFRelocs/RISCV.def"
647     break;
648   case ELF::EM_LANAI:
649 #include "llvm/BinaryFormat/ELFRelocs/Lanai.def"
650     break;
651   case ELF::EM_AMDGPU:
652 #include "llvm/BinaryFormat/ELFRelocs/AMDGPU.def"
653     break;
654   case ELF::EM_BPF:
655 #include "llvm/BinaryFormat/ELFRelocs/BPF.def"
656     break;
657   case ELF::EM_PPC64:
658 #include "llvm/BinaryFormat/ELFRelocs/PowerPC64.def"
659     break;
660   default:
661     // Nothing to do.
662     break;
663   }
664 #undef ELF_RELOC
665   IO.enumFallback<Hex32>(Value);
666 }
667 
668 void ScalarEnumerationTraits<ELFYAML::ELF_DYNTAG>::enumeration(
669     IO &IO, ELFYAML::ELF_DYNTAG &Value) {
670   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
671   assert(Object && "The IO context is not initialized");
672 
673 // Disable architecture specific tags by default. We might enable them below.
674 #define AARCH64_DYNAMIC_TAG(name, value)
675 #define MIPS_DYNAMIC_TAG(name, value)
676 #define HEXAGON_DYNAMIC_TAG(name, value)
677 #define PPC_DYNAMIC_TAG(name, value)
678 #define PPC64_DYNAMIC_TAG(name, value)
679 // Ignore marker tags such as DT_HIOS (maps to DT_VERNEEDNUM), etc.
680 #define DYNAMIC_TAG_MARKER(name, value)
681 
682 #define STRINGIFY(X) (#X)
683 #define DYNAMIC_TAG(X, Y) IO.enumCase(Value, STRINGIFY(DT_##X), ELF::DT_##X);
684   switch (Object->Header.Machine) {
685   case ELF::EM_AARCH64:
686 #undef AARCH64_DYNAMIC_TAG
687 #define AARCH64_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
688 #include "llvm/BinaryFormat/DynamicTags.def"
689 #undef AARCH64_DYNAMIC_TAG
690 #define AARCH64_DYNAMIC_TAG(name, value)
691     break;
692   case ELF::EM_MIPS:
693 #undef MIPS_DYNAMIC_TAG
694 #define MIPS_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
695 #include "llvm/BinaryFormat/DynamicTags.def"
696 #undef MIPS_DYNAMIC_TAG
697 #define MIPS_DYNAMIC_TAG(name, value)
698     break;
699   case ELF::EM_HEXAGON:
700 #undef HEXAGON_DYNAMIC_TAG
701 #define HEXAGON_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
702 #include "llvm/BinaryFormat/DynamicTags.def"
703 #undef HEXAGON_DYNAMIC_TAG
704 #define HEXAGON_DYNAMIC_TAG(name, value)
705     break;
706   case ELF::EM_PPC:
707 #undef PPC_DYNAMIC_TAG
708 #define PPC_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
709 #include "llvm/BinaryFormat/DynamicTags.def"
710 #undef PPC_DYNAMIC_TAG
711 #define PPC_DYNAMIC_TAG(name, value)
712     break;
713   case ELF::EM_PPC64:
714 #undef PPC64_DYNAMIC_TAG
715 #define PPC64_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
716 #include "llvm/BinaryFormat/DynamicTags.def"
717 #undef PPC64_DYNAMIC_TAG
718 #define PPC64_DYNAMIC_TAG(name, value)
719     break;
720   default:
721 #include "llvm/BinaryFormat/DynamicTags.def"
722     break;
723   }
724 #undef AARCH64_DYNAMIC_TAG
725 #undef MIPS_DYNAMIC_TAG
726 #undef HEXAGON_DYNAMIC_TAG
727 #undef PPC_DYNAMIC_TAG
728 #undef PPC64_DYNAMIC_TAG
729 #undef DYNAMIC_TAG_MARKER
730 #undef STRINGIFY
731 #undef DYNAMIC_TAG
732 
733   IO.enumFallback<Hex64>(Value);
734 }
735 
736 void ScalarEnumerationTraits<ELFYAML::MIPS_AFL_REG>::enumeration(
737     IO &IO, ELFYAML::MIPS_AFL_REG &Value) {
738 #define ECase(X) IO.enumCase(Value, #X, Mips::AFL_##X)
739   ECase(REG_NONE);
740   ECase(REG_32);
741   ECase(REG_64);
742   ECase(REG_128);
743 #undef ECase
744 }
745 
746 void ScalarEnumerationTraits<ELFYAML::MIPS_ABI_FP>::enumeration(
747     IO &IO, ELFYAML::MIPS_ABI_FP &Value) {
748 #define ECase(X) IO.enumCase(Value, #X, Mips::Val_GNU_MIPS_ABI_##X)
749   ECase(FP_ANY);
750   ECase(FP_DOUBLE);
751   ECase(FP_SINGLE);
752   ECase(FP_SOFT);
753   ECase(FP_OLD_64);
754   ECase(FP_XX);
755   ECase(FP_64);
756   ECase(FP_64A);
757 #undef ECase
758 }
759 
760 void ScalarEnumerationTraits<ELFYAML::MIPS_AFL_EXT>::enumeration(
761     IO &IO, ELFYAML::MIPS_AFL_EXT &Value) {
762 #define ECase(X) IO.enumCase(Value, #X, Mips::AFL_##X)
763   ECase(EXT_NONE);
764   ECase(EXT_XLR);
765   ECase(EXT_OCTEON2);
766   ECase(EXT_OCTEONP);
767   ECase(EXT_LOONGSON_3A);
768   ECase(EXT_OCTEON);
769   ECase(EXT_5900);
770   ECase(EXT_4650);
771   ECase(EXT_4010);
772   ECase(EXT_4100);
773   ECase(EXT_3900);
774   ECase(EXT_10000);
775   ECase(EXT_SB1);
776   ECase(EXT_4111);
777   ECase(EXT_4120);
778   ECase(EXT_5400);
779   ECase(EXT_5500);
780   ECase(EXT_LOONGSON_2E);
781   ECase(EXT_LOONGSON_2F);
782   ECase(EXT_OCTEON3);
783 #undef ECase
784 }
785 
786 void ScalarEnumerationTraits<ELFYAML::MIPS_ISA>::enumeration(
787     IO &IO, ELFYAML::MIPS_ISA &Value) {
788   IO.enumCase(Value, "MIPS1", 1);
789   IO.enumCase(Value, "MIPS2", 2);
790   IO.enumCase(Value, "MIPS3", 3);
791   IO.enumCase(Value, "MIPS4", 4);
792   IO.enumCase(Value, "MIPS5", 5);
793   IO.enumCase(Value, "MIPS32", 32);
794   IO.enumCase(Value, "MIPS64", 64);
795 }
796 
797 void ScalarBitSetTraits<ELFYAML::MIPS_AFL_ASE>::bitset(
798     IO &IO, ELFYAML::MIPS_AFL_ASE &Value) {
799 #define BCase(X) IO.bitSetCase(Value, #X, Mips::AFL_ASE_##X)
800   BCase(DSP);
801   BCase(DSPR2);
802   BCase(EVA);
803   BCase(MCU);
804   BCase(MDMX);
805   BCase(MIPS3D);
806   BCase(MT);
807   BCase(SMARTMIPS);
808   BCase(VIRT);
809   BCase(MSA);
810   BCase(MIPS16);
811   BCase(MICROMIPS);
812   BCase(XPA);
813 #undef BCase
814 }
815 
816 void ScalarBitSetTraits<ELFYAML::MIPS_AFL_FLAGS1>::bitset(
817     IO &IO, ELFYAML::MIPS_AFL_FLAGS1 &Value) {
818 #define BCase(X) IO.bitSetCase(Value, #X, Mips::AFL_FLAGS1_##X)
819   BCase(ODDSPREG);
820 #undef BCase
821 }
822 
823 void MappingTraits<ELFYAML::FileHeader>::mapping(IO &IO,
824                                                  ELFYAML::FileHeader &FileHdr) {
825   IO.mapRequired("Class", FileHdr.Class);
826   IO.mapRequired("Data", FileHdr.Data);
827   IO.mapOptional("OSABI", FileHdr.OSABI, ELFYAML::ELF_ELFOSABI(0));
828   IO.mapOptional("ABIVersion", FileHdr.ABIVersion, Hex8(0));
829   IO.mapRequired("Type", FileHdr.Type);
830   IO.mapRequired("Machine", FileHdr.Machine);
831   IO.mapOptional("Flags", FileHdr.Flags, ELFYAML::ELF_EF(0));
832   IO.mapOptional("Entry", FileHdr.Entry, Hex64(0));
833 
834   IO.mapOptional("SHEntSize", FileHdr.SHEntSize);
835   IO.mapOptional("SHOff", FileHdr.SHOff);
836   IO.mapOptional("SHNum", FileHdr.SHNum);
837   IO.mapOptional("SHStrNdx", FileHdr.SHStrNdx);
838 }
839 
840 void MappingTraits<ELFYAML::ProgramHeader>::mapping(
841     IO &IO, ELFYAML::ProgramHeader &Phdr) {
842   IO.mapRequired("Type", Phdr.Type);
843   IO.mapOptional("Flags", Phdr.Flags, ELFYAML::ELF_PF(0));
844   IO.mapOptional("Sections", Phdr.Sections);
845   IO.mapOptional("VAddr", Phdr.VAddr, Hex64(0));
846   IO.mapOptional("PAddr", Phdr.PAddr, Hex64(0));
847   IO.mapOptional("Align", Phdr.Align);
848   IO.mapOptional("FileSize", Phdr.FileSize);
849   IO.mapOptional("MemSize", Phdr.MemSize);
850   IO.mapOptional("Offset", Phdr.Offset);
851 }
852 
853 LLVM_YAML_STRONG_TYPEDEF(StringRef, StOtherPiece)
854 
855 template <> struct ScalarTraits<StOtherPiece> {
856   static void output(const StOtherPiece &Val, void *, raw_ostream &Out) {
857     Out << Val;
858   }
859   static StringRef input(StringRef Scalar, void *, StOtherPiece &Val) {
860     Val = Scalar;
861     return {};
862   }
863   static QuotingType mustQuote(StringRef) { return QuotingType::None; }
864 };
865 template <> struct SequenceElementTraits<StOtherPiece> {
866   static const bool flow = true;
867 };
868 
869 template <> struct ScalarTraits<ELFYAML::YAMLFlowString> {
870   static void output(const ELFYAML::YAMLFlowString &Val, void *,
871                      raw_ostream &Out) {
872     Out << Val;
873   }
874   static StringRef input(StringRef Scalar, void *,
875                          ELFYAML::YAMLFlowString &Val) {
876     Val = Scalar;
877     return {};
878   }
879   static QuotingType mustQuote(StringRef S) {
880     return ScalarTraits<StringRef>::mustQuote(S);
881   }
882 };
883 template <> struct SequenceElementTraits<ELFYAML::YAMLFlowString> {
884   static const bool flow = true;
885 };
886 
887 namespace {
888 
889 struct NormalizedOther {
890   NormalizedOther(IO &IO) : YamlIO(IO) {}
891   NormalizedOther(IO &IO, Optional<uint8_t> Original) : YamlIO(IO) {
892     assert(Original && "This constructor is only used for outputting YAML and "
893                        "assumes a non-empty Original");
894     std::vector<StOtherPiece> Ret;
895     const auto *Object = static_cast<ELFYAML::Object *>(YamlIO.getContext());
896     for (std::pair<StringRef, uint8_t> &P :
897          getFlags(Object->Header.Machine).takeVector()) {
898       uint8_t FlagValue = P.second;
899       if ((*Original & FlagValue) != FlagValue)
900         continue;
901       *Original &= ~FlagValue;
902       Ret.push_back({P.first});
903     }
904 
905     if (*Original != 0) {
906       UnknownFlagsHolder = std::to_string(*Original);
907       Ret.push_back({UnknownFlagsHolder});
908     }
909 
910     if (!Ret.empty())
911       Other = std::move(Ret);
912   }
913 
914   uint8_t toValue(StringRef Name) {
915     const auto *Object = static_cast<ELFYAML::Object *>(YamlIO.getContext());
916     MapVector<StringRef, uint8_t> Flags = getFlags(Object->Header.Machine);
917 
918     auto It = Flags.find(Name);
919     if (It != Flags.end())
920       return It->second;
921 
922     uint8_t Val;
923     if (to_integer(Name, Val))
924       return Val;
925 
926     YamlIO.setError("an unknown value is used for symbol's 'Other' field: " +
927                     Name);
928     return 0;
929   }
930 
931   Optional<uint8_t> denormalize(IO &) {
932     if (!Other)
933       return None;
934     uint8_t Ret = 0;
935     for (StOtherPiece &Val : *Other)
936       Ret |= toValue(Val);
937     return Ret;
938   }
939 
940   // st_other field is used to encode symbol visibility and platform-dependent
941   // flags and values. This method returns a name to value map that is used for
942   // parsing and encoding this field.
943   MapVector<StringRef, uint8_t> getFlags(unsigned EMachine) {
944     MapVector<StringRef, uint8_t> Map;
945     // STV_* values are just enumeration values. We add them in a reversed order
946     // because when we convert the st_other to named constants when printing
947     // YAML we want to use a maximum number of bits on each step:
948     // when we have st_other == 3, we want to print it as STV_PROTECTED (3), but
949     // not as STV_HIDDEN (2) + STV_INTERNAL (1).
950     Map["STV_PROTECTED"] = ELF::STV_PROTECTED;
951     Map["STV_HIDDEN"] = ELF::STV_HIDDEN;
952     Map["STV_INTERNAL"] = ELF::STV_INTERNAL;
953     // STV_DEFAULT is used to represent the default visibility and has a value
954     // 0. We want to be able to read it from YAML documents, but there is no
955     // reason to print it.
956     if (!YamlIO.outputting())
957       Map["STV_DEFAULT"] = ELF::STV_DEFAULT;
958 
959     // MIPS is not consistent. All of the STO_MIPS_* values are bit flags,
960     // except STO_MIPS_MIPS16 which overlaps them. It should be checked and
961     // consumed first when we print the output, because we do not want to print
962     // any other flags that have the same bits instead.
963     if (EMachine == ELF::EM_MIPS) {
964       Map["STO_MIPS_MIPS16"] = ELF::STO_MIPS_MIPS16;
965       Map["STO_MIPS_MICROMIPS"] = ELF::STO_MIPS_MICROMIPS;
966       Map["STO_MIPS_PIC"] = ELF::STO_MIPS_PIC;
967       Map["STO_MIPS_PLT"] = ELF::STO_MIPS_PLT;
968       Map["STO_MIPS_OPTIONAL"] = ELF::STO_MIPS_OPTIONAL;
969     }
970     return Map;
971   }
972 
973   IO &YamlIO;
974   Optional<std::vector<StOtherPiece>> Other;
975   std::string UnknownFlagsHolder;
976 };
977 
978 } // end anonymous namespace
979 
980 void MappingTraits<ELFYAML::Symbol>::mapping(IO &IO, ELFYAML::Symbol &Symbol) {
981   IO.mapOptional("Name", Symbol.Name, StringRef());
982   IO.mapOptional("NameIndex", Symbol.NameIndex);
983   IO.mapOptional("Type", Symbol.Type, ELFYAML::ELF_STT(0));
984   IO.mapOptional("Section", Symbol.Section, StringRef());
985   IO.mapOptional("Index", Symbol.Index);
986   IO.mapOptional("Binding", Symbol.Binding, ELFYAML::ELF_STB(0));
987   IO.mapOptional("Value", Symbol.Value, Hex64(0));
988   IO.mapOptional("Size", Symbol.Size, Hex64(0));
989 
990   // Symbol's Other field is a bit special. It is usually a field that
991   // represents st_other and holds the symbol visibility. However, on some
992   // platforms, it can contain bit fields and regular values, or even sometimes a
993   // crazy mix of them (see comments for NormalizedOther). Because of this, we
994   // need special handling.
995   MappingNormalization<NormalizedOther, Optional<uint8_t>> Keys(IO,
996                                                                 Symbol.Other);
997   IO.mapOptional("Other", Keys->Other);
998 }
999 
1000 StringRef MappingTraits<ELFYAML::Symbol>::validate(IO &IO,
1001                                                    ELFYAML::Symbol &Symbol) {
1002   if (Symbol.Index && Symbol.Section.data())
1003     return "Index and Section cannot both be specified for Symbol";
1004   if (Symbol.NameIndex && !Symbol.Name.empty())
1005     return "Name and NameIndex cannot both be specified for Symbol";
1006   return StringRef();
1007 }
1008 
1009 static void commonSectionMapping(IO &IO, ELFYAML::Section &Section) {
1010   IO.mapOptional("Name", Section.Name, StringRef());
1011   IO.mapRequired("Type", Section.Type);
1012   IO.mapOptional("Flags", Section.Flags);
1013   IO.mapOptional("Address", Section.Address, Hex64(0));
1014   IO.mapOptional("Link", Section.Link, StringRef());
1015   IO.mapOptional("AddressAlign", Section.AddressAlign, Hex64(0));
1016   IO.mapOptional("EntSize", Section.EntSize);
1017 
1018   // obj2yaml does not dump these fields. They are expected to be empty when we
1019   // are producing YAML, because yaml2obj sets appropriate values for them
1020   // automatically when they are not explicitly defined.
1021   assert(!IO.outputting() ||
1022          (!Section.ShOffset.hasValue() && !Section.ShSize.hasValue() &&
1023           !Section.ShName.hasValue() && !Section.ShFlags.hasValue()));
1024   IO.mapOptional("ShName", Section.ShName);
1025   IO.mapOptional("ShOffset", Section.ShOffset);
1026   IO.mapOptional("ShSize", Section.ShSize);
1027   IO.mapOptional("ShFlags", Section.ShFlags);
1028 }
1029 
1030 static void sectionMapping(IO &IO, ELFYAML::DynamicSection &Section) {
1031   commonSectionMapping(IO, Section);
1032   IO.mapOptional("Entries", Section.Entries);
1033   IO.mapOptional("Content", Section.Content);
1034 }
1035 
1036 static void sectionMapping(IO &IO, ELFYAML::RawContentSection &Section) {
1037   commonSectionMapping(IO, Section);
1038   IO.mapOptional("Content", Section.Content);
1039   IO.mapOptional("Size", Section.Size);
1040   IO.mapOptional("Info", Section.Info);
1041 }
1042 
1043 static void sectionMapping(IO &IO, ELFYAML::StackSizesSection &Section) {
1044   commonSectionMapping(IO, Section);
1045   IO.mapOptional("Content", Section.Content);
1046   IO.mapOptional("Size", Section.Size);
1047   IO.mapOptional("Entries", Section.Entries);
1048 }
1049 
1050 static void sectionMapping(IO &IO, ELFYAML::HashSection &Section) {
1051   commonSectionMapping(IO, Section);
1052   IO.mapOptional("Content", Section.Content);
1053   IO.mapOptional("Bucket", Section.Bucket);
1054   IO.mapOptional("Chain", Section.Chain);
1055   IO.mapOptional("Size", Section.Size);
1056 }
1057 
1058 static void sectionMapping(IO &IO, ELFYAML::NoteSection &Section) {
1059   commonSectionMapping(IO, Section);
1060   IO.mapOptional("Content", Section.Content);
1061   IO.mapOptional("Size", Section.Size);
1062   IO.mapOptional("Notes", Section.Notes);
1063 }
1064 
1065 
1066 static void sectionMapping(IO &IO, ELFYAML::GnuHashSection &Section) {
1067   commonSectionMapping(IO, Section);
1068   IO.mapOptional("Content", Section.Content);
1069   IO.mapOptional("Header", Section.Header);
1070   IO.mapOptional("BloomFilter", Section.BloomFilter);
1071   IO.mapOptional("HashBuckets", Section.HashBuckets);
1072   IO.mapOptional("HashValues", Section.HashValues);
1073 }
1074 static void sectionMapping(IO &IO, ELFYAML::NoBitsSection &Section) {
1075   commonSectionMapping(IO, Section);
1076   IO.mapOptional("Size", Section.Size, Hex64(0));
1077 }
1078 
1079 static void sectionMapping(IO &IO, ELFYAML::VerdefSection &Section) {
1080   commonSectionMapping(IO, Section);
1081   IO.mapRequired("Info", Section.Info);
1082   IO.mapOptional("Entries", Section.Entries);
1083   IO.mapOptional("Content", Section.Content);
1084 }
1085 
1086 static void sectionMapping(IO &IO, ELFYAML::SymverSection &Section) {
1087   commonSectionMapping(IO, Section);
1088   IO.mapRequired("Entries", Section.Entries);
1089 }
1090 
1091 static void sectionMapping(IO &IO, ELFYAML::VerneedSection &Section) {
1092   commonSectionMapping(IO, Section);
1093   IO.mapRequired("Info", Section.Info);
1094   IO.mapOptional("Dependencies", Section.VerneedV);
1095   IO.mapOptional("Content", Section.Content);
1096 }
1097 
1098 static void sectionMapping(IO &IO, ELFYAML::RelocationSection &Section) {
1099   commonSectionMapping(IO, Section);
1100   IO.mapOptional("Info", Section.RelocatableSec, StringRef());
1101   IO.mapOptional("Relocations", Section.Relocations);
1102 }
1103 
1104 static void sectionMapping(IO &IO, ELFYAML::RelrSection &Section) {
1105   commonSectionMapping(IO, Section);
1106   IO.mapOptional("Entries", Section.Entries);
1107   IO.mapOptional("Content", Section.Content);
1108 }
1109 
1110 static void groupSectionMapping(IO &IO, ELFYAML::Group &Group) {
1111   commonSectionMapping(IO, Group);
1112   IO.mapOptional("Info", Group.Signature);
1113   IO.mapRequired("Members", Group.Members);
1114 }
1115 
1116 static void sectionMapping(IO &IO, ELFYAML::SymtabShndxSection &Section) {
1117   commonSectionMapping(IO, Section);
1118   IO.mapRequired("Entries", Section.Entries);
1119 }
1120 
1121 static void sectionMapping(IO &IO, ELFYAML::AddrsigSection &Section) {
1122   commonSectionMapping(IO, Section);
1123   IO.mapOptional("Content", Section.Content);
1124   IO.mapOptional("Size", Section.Size);
1125   IO.mapOptional("Symbols", Section.Symbols);
1126 }
1127 
1128 static void fillMapping(IO &IO, ELFYAML::Fill &Fill) {
1129   IO.mapOptional("Name", Fill.Name, StringRef());
1130   IO.mapOptional("Pattern", Fill.Pattern);
1131   IO.mapRequired("Size", Fill.Size);
1132 }
1133 
1134 static void sectionMapping(IO &IO, ELFYAML::LinkerOptionsSection &Section) {
1135   commonSectionMapping(IO, Section);
1136   IO.mapOptional("Options", Section.Options);
1137   IO.mapOptional("Content", Section.Content);
1138 }
1139 
1140 static void sectionMapping(IO &IO,
1141                            ELFYAML::DependentLibrariesSection &Section) {
1142   commonSectionMapping(IO, Section);
1143   IO.mapOptional("Libraries", Section.Libs);
1144   IO.mapOptional("Content", Section.Content);
1145 }
1146 
1147 void MappingTraits<ELFYAML::SectionOrType>::mapping(
1148     IO &IO, ELFYAML::SectionOrType &sectionOrType) {
1149   IO.mapRequired("SectionOrType", sectionOrType.sectionNameOrType);
1150 }
1151 
1152 void MappingTraits<ELFYAML::SectionName>::mapping(
1153     IO &IO, ELFYAML::SectionName &sectionName) {
1154   IO.mapRequired("Section", sectionName.Section);
1155 }
1156 
1157 static void sectionMapping(IO &IO, ELFYAML::MipsABIFlags &Section) {
1158   commonSectionMapping(IO, Section);
1159   IO.mapOptional("Version", Section.Version, Hex16(0));
1160   IO.mapRequired("ISA", Section.ISALevel);
1161   IO.mapOptional("ISARevision", Section.ISARevision, Hex8(0));
1162   IO.mapOptional("ISAExtension", Section.ISAExtension,
1163                  ELFYAML::MIPS_AFL_EXT(Mips::AFL_EXT_NONE));
1164   IO.mapOptional("ASEs", Section.ASEs, ELFYAML::MIPS_AFL_ASE(0));
1165   IO.mapOptional("FpABI", Section.FpABI,
1166                  ELFYAML::MIPS_ABI_FP(Mips::Val_GNU_MIPS_ABI_FP_ANY));
1167   IO.mapOptional("GPRSize", Section.GPRSize,
1168                  ELFYAML::MIPS_AFL_REG(Mips::AFL_REG_NONE));
1169   IO.mapOptional("CPR1Size", Section.CPR1Size,
1170                  ELFYAML::MIPS_AFL_REG(Mips::AFL_REG_NONE));
1171   IO.mapOptional("CPR2Size", Section.CPR2Size,
1172                  ELFYAML::MIPS_AFL_REG(Mips::AFL_REG_NONE));
1173   IO.mapOptional("Flags1", Section.Flags1, ELFYAML::MIPS_AFL_FLAGS1(0));
1174   IO.mapOptional("Flags2", Section.Flags2, Hex32(0));
1175 }
1176 
1177 void MappingTraits<std::unique_ptr<ELFYAML::Chunk>>::mapping(
1178     IO &IO, std::unique_ptr<ELFYAML::Chunk> &Section) {
1179   ELFYAML::ELF_SHT Type;
1180   if (IO.outputting()) {
1181     Type = cast<ELFYAML::Section>(Section.get())->Type;
1182   } else {
1183     // When the Type string does not have a "SHT_" prefix, we know it is not a
1184     // description of a regular ELF output section. Currently, we have one
1185     // special type named "Fill". See comments for Fill.
1186     StringRef StrType;
1187     IO.mapRequired("Type", StrType);
1188     if (StrType == "Fill") {
1189       Section.reset(new ELFYAML::Fill());
1190       fillMapping(IO, *cast<ELFYAML::Fill>(Section.get()));
1191       return;
1192     }
1193 
1194     IO.mapRequired("Type", Type);
1195   }
1196 
1197   switch (Type) {
1198   case ELF::SHT_DYNAMIC:
1199     if (!IO.outputting())
1200       Section.reset(new ELFYAML::DynamicSection());
1201     sectionMapping(IO, *cast<ELFYAML::DynamicSection>(Section.get()));
1202     break;
1203   case ELF::SHT_REL:
1204   case ELF::SHT_RELA:
1205     if (!IO.outputting())
1206       Section.reset(new ELFYAML::RelocationSection());
1207     sectionMapping(IO, *cast<ELFYAML::RelocationSection>(Section.get()));
1208     break;
1209   case ELF::SHT_RELR:
1210     if (!IO.outputting())
1211       Section.reset(new ELFYAML::RelrSection());
1212     sectionMapping(IO, *cast<ELFYAML::RelrSection>(Section.get()));
1213     break;
1214   case ELF::SHT_GROUP:
1215     if (!IO.outputting())
1216       Section.reset(new ELFYAML::Group());
1217     groupSectionMapping(IO, *cast<ELFYAML::Group>(Section.get()));
1218     break;
1219   case ELF::SHT_NOBITS:
1220     if (!IO.outputting())
1221       Section.reset(new ELFYAML::NoBitsSection());
1222     sectionMapping(IO, *cast<ELFYAML::NoBitsSection>(Section.get()));
1223     break;
1224   case ELF::SHT_HASH:
1225     if (!IO.outputting())
1226       Section.reset(new ELFYAML::HashSection());
1227     sectionMapping(IO, *cast<ELFYAML::HashSection>(Section.get()));
1228     break;
1229   case ELF::SHT_NOTE:
1230     if (!IO.outputting())
1231       Section.reset(new ELFYAML::NoteSection());
1232     sectionMapping(IO, *cast<ELFYAML::NoteSection>(Section.get()));
1233     break;
1234  case ELF::SHT_GNU_HASH:
1235     if (!IO.outputting())
1236       Section.reset(new ELFYAML::GnuHashSection());
1237     sectionMapping(IO, *cast<ELFYAML::GnuHashSection>(Section.get()));
1238     break;
1239   case ELF::SHT_MIPS_ABIFLAGS:
1240     if (!IO.outputting())
1241       Section.reset(new ELFYAML::MipsABIFlags());
1242     sectionMapping(IO, *cast<ELFYAML::MipsABIFlags>(Section.get()));
1243     break;
1244   case ELF::SHT_GNU_verdef:
1245     if (!IO.outputting())
1246       Section.reset(new ELFYAML::VerdefSection());
1247     sectionMapping(IO, *cast<ELFYAML::VerdefSection>(Section.get()));
1248     break;
1249   case ELF::SHT_GNU_versym:
1250     if (!IO.outputting())
1251       Section.reset(new ELFYAML::SymverSection());
1252     sectionMapping(IO, *cast<ELFYAML::SymverSection>(Section.get()));
1253     break;
1254   case ELF::SHT_GNU_verneed:
1255     if (!IO.outputting())
1256       Section.reset(new ELFYAML::VerneedSection());
1257     sectionMapping(IO, *cast<ELFYAML::VerneedSection>(Section.get()));
1258     break;
1259   case ELF::SHT_SYMTAB_SHNDX:
1260     if (!IO.outputting())
1261       Section.reset(new ELFYAML::SymtabShndxSection());
1262     sectionMapping(IO, *cast<ELFYAML::SymtabShndxSection>(Section.get()));
1263     break;
1264   case ELF::SHT_LLVM_ADDRSIG:
1265     if (!IO.outputting())
1266       Section.reset(new ELFYAML::AddrsigSection());
1267     sectionMapping(IO, *cast<ELFYAML::AddrsigSection>(Section.get()));
1268     break;
1269   case ELF::SHT_LLVM_LINKER_OPTIONS:
1270     if (!IO.outputting())
1271       Section.reset(new ELFYAML::LinkerOptionsSection());
1272     sectionMapping(IO, *cast<ELFYAML::LinkerOptionsSection>(Section.get()));
1273     break;
1274   case ELF::SHT_LLVM_DEPENDENT_LIBRARIES:
1275     if (!IO.outputting())
1276       Section.reset(new ELFYAML::DependentLibrariesSection());
1277     sectionMapping(IO,
1278                    *cast<ELFYAML::DependentLibrariesSection>(Section.get()));
1279     break;
1280   default:
1281     if (!IO.outputting()) {
1282       StringRef Name;
1283       IO.mapOptional("Name", Name, StringRef());
1284       Name = ELFYAML::dropUniqueSuffix(Name);
1285 
1286       if (ELFYAML::StackSizesSection::nameMatches(Name))
1287         Section = std::make_unique<ELFYAML::StackSizesSection>();
1288       else
1289         Section = std::make_unique<ELFYAML::RawContentSection>();
1290     }
1291 
1292     if (auto S = dyn_cast<ELFYAML::RawContentSection>(Section.get()))
1293       sectionMapping(IO, *S);
1294     else
1295       sectionMapping(IO, *cast<ELFYAML::StackSizesSection>(Section.get()));
1296   }
1297 }
1298 
1299 StringRef MappingTraits<std::unique_ptr<ELFYAML::Chunk>>::validate(
1300     IO &io, std::unique_ptr<ELFYAML::Chunk> &C) {
1301   if (const auto *RawSection = dyn_cast<ELFYAML::RawContentSection>(C.get())) {
1302     if (RawSection->Size && RawSection->Content &&
1303         (uint64_t)(*RawSection->Size) < RawSection->Content->binary_size())
1304       return "Section size must be greater than or equal to the content size";
1305     if (RawSection->Flags && RawSection->ShFlags)
1306       return "ShFlags and Flags cannot be used together";
1307     return {};
1308   }
1309 
1310   if (const auto *SS = dyn_cast<ELFYAML::StackSizesSection>(C.get())) {
1311     if (!SS->Entries && !SS->Content && !SS->Size)
1312       return ".stack_sizes: one of Content, Entries and Size must be specified";
1313 
1314     if (SS->Size && SS->Content &&
1315         (uint64_t)(*SS->Size) < SS->Content->binary_size())
1316       return ".stack_sizes: Size must be greater than or equal to the content "
1317              "size";
1318 
1319     // We accept Content, Size or both together when there are no Entries.
1320     if (!SS->Entries)
1321       return {};
1322 
1323     if (SS->Size)
1324       return ".stack_sizes: Size and Entries cannot be used together";
1325     if (SS->Content)
1326       return ".stack_sizes: Content and Entries cannot be used together";
1327     return {};
1328   }
1329 
1330   if (const auto *HS = dyn_cast<ELFYAML::HashSection>(C.get())) {
1331     if (!HS->Content && !HS->Bucket && !HS->Chain && !HS->Size)
1332       return "one of \"Content\", \"Size\", \"Bucket\" or \"Chain\" must be "
1333              "specified";
1334 
1335     if (HS->Content || HS->Size) {
1336       if (HS->Size && HS->Content &&
1337           (uint64_t)*HS->Size < HS->Content->binary_size())
1338         return "\"Size\" must be greater than or equal to the content "
1339                "size";
1340 
1341       if (HS->Bucket)
1342         return "\"Bucket\" cannot be used with \"Content\" or \"Size\"";
1343       if (HS->Chain)
1344         return "\"Chain\" cannot be used with \"Content\" or \"Size\"";
1345       return {};
1346     }
1347 
1348     if ((HS->Bucket && !HS->Chain) || (!HS->Bucket && HS->Chain))
1349       return "\"Bucket\" and \"Chain\" must be used together";
1350     return {};
1351   }
1352 
1353   if (const auto *Sec = dyn_cast<ELFYAML::AddrsigSection>(C.get())) {
1354     if (!Sec->Symbols && !Sec->Content && !Sec->Size)
1355       return "one of \"Content\", \"Size\" or \"Symbols\" must be specified";
1356 
1357     if (Sec->Content || Sec->Size) {
1358       if (Sec->Size && Sec->Content &&
1359           (uint64_t)*Sec->Size < Sec->Content->binary_size())
1360         return "\"Size\" must be greater than or equal to the content "
1361                "size";
1362 
1363       if (Sec->Symbols)
1364         return "\"Symbols\" cannot be used with \"Content\" or \"Size\"";
1365       return {};
1366     }
1367 
1368     if (!Sec->Symbols)
1369       return {};
1370 
1371     for (const ELFYAML::AddrsigSymbol &AS : *Sec->Symbols)
1372       if (AS.Index && AS.Name)
1373         return "\"Index\" and \"Name\" cannot be used together when defining a "
1374                "symbol";
1375     return {};
1376   }
1377 
1378   if (const auto *NS = dyn_cast<ELFYAML::NoteSection>(C.get())) {
1379     if (!NS->Content && !NS->Size && !NS->Notes)
1380       return "one of \"Content\", \"Size\" or \"Notes\" must be "
1381              "specified";
1382 
1383     if (!NS->Content && !NS->Size)
1384       return {};
1385 
1386     if (NS->Size && NS->Content &&
1387         (uint64_t)*NS->Size < NS->Content->binary_size())
1388       return "\"Size\" must be greater than or equal to the content "
1389              "size";
1390 
1391     if (NS->Notes)
1392       return "\"Notes\" cannot be used with \"Content\" or \"Size\"";
1393     return {};
1394   }
1395 
1396   if (const auto *Sec = dyn_cast<ELFYAML::GnuHashSection>(C.get())) {
1397     if (!Sec->Content && !Sec->Header && !Sec->BloomFilter &&
1398         !Sec->HashBuckets && !Sec->HashValues)
1399       return "either \"Content\" or \"Header\", \"BloomFilter\", "
1400              "\"HashBuckets\" and \"HashBuckets\" must be specified";
1401 
1402     if (Sec->Header || Sec->BloomFilter || Sec->HashBuckets ||
1403         Sec->HashValues) {
1404       if (!Sec->Header || !Sec->BloomFilter || !Sec->HashBuckets ||
1405           !Sec->HashValues)
1406         return "\"Header\", \"BloomFilter\", "
1407                "\"HashBuckets\" and \"HashValues\" must be used together";
1408       if (Sec->Content)
1409         return "\"Header\", \"BloomFilter\", "
1410                "\"HashBuckets\" and \"HashValues\" can't be used together with "
1411                "\"Content\"";
1412       return {};
1413     }
1414 
1415     // Only Content is specified.
1416     return {};
1417   }
1418 
1419   if (const auto *Sec = dyn_cast<ELFYAML::LinkerOptionsSection>(C.get())) {
1420     if (Sec->Options && Sec->Content)
1421       return "\"Options\" and \"Content\" can't be used together";
1422     return {};
1423   }
1424 
1425   if (const auto *Sec = dyn_cast<ELFYAML::DependentLibrariesSection>(C.get())) {
1426     if (Sec->Libs && Sec->Content)
1427       return "SHT_LLVM_DEPENDENT_LIBRARIES: \"Libraries\" and \"Content\" "
1428              "can't "
1429              "be used together";
1430     return {};
1431   }
1432 
1433   if (const auto *F = dyn_cast<ELFYAML::Fill>(C.get())) {
1434     if (!F->Pattern)
1435       return {};
1436     if (F->Pattern->binary_size() != 0 && !F->Size)
1437       return "\"Size\" can't be 0 when \"Pattern\" is not empty";
1438     return {};
1439   }
1440 
1441   if (const auto *VD = dyn_cast<ELFYAML::VerdefSection>(C.get())) {
1442     if (VD->Entries && VD->Content)
1443       return "SHT_GNU_verdef: \"Entries\" and \"Content\" can't be used "
1444              "together";
1445     return {};
1446   }
1447 
1448   if (const auto *VD = dyn_cast<ELFYAML::VerneedSection>(C.get())) {
1449     if (VD->VerneedV && VD->Content)
1450       return "SHT_GNU_verneed: \"Dependencies\" and \"Content\" can't be used "
1451              "together";
1452     return {};
1453   }
1454 
1455   if (const auto *RS = dyn_cast<ELFYAML::RelrSection>(C.get())) {
1456     if (RS->Entries && RS->Content)
1457       return "\"Entries\" and \"Content\" can't be used together";
1458     return {};
1459   }
1460 
1461   return {};
1462 }
1463 
1464 namespace {
1465 
1466 struct NormalizedMips64RelType {
1467   NormalizedMips64RelType(IO &)
1468       : Type(ELFYAML::ELF_REL(ELF::R_MIPS_NONE)),
1469         Type2(ELFYAML::ELF_REL(ELF::R_MIPS_NONE)),
1470         Type3(ELFYAML::ELF_REL(ELF::R_MIPS_NONE)),
1471         SpecSym(ELFYAML::ELF_REL(ELF::RSS_UNDEF)) {}
1472   NormalizedMips64RelType(IO &, ELFYAML::ELF_REL Original)
1473       : Type(Original & 0xFF), Type2(Original >> 8 & 0xFF),
1474         Type3(Original >> 16 & 0xFF), SpecSym(Original >> 24 & 0xFF) {}
1475 
1476   ELFYAML::ELF_REL denormalize(IO &) {
1477     ELFYAML::ELF_REL Res = Type | Type2 << 8 | Type3 << 16 | SpecSym << 24;
1478     return Res;
1479   }
1480 
1481   ELFYAML::ELF_REL Type;
1482   ELFYAML::ELF_REL Type2;
1483   ELFYAML::ELF_REL Type3;
1484   ELFYAML::ELF_RSS SpecSym;
1485 };
1486 
1487 } // end anonymous namespace
1488 
1489 void MappingTraits<ELFYAML::StackSizeEntry>::mapping(
1490     IO &IO, ELFYAML::StackSizeEntry &E) {
1491   assert(IO.getContext() && "The IO context is not initialized");
1492   IO.mapOptional("Address", E.Address, Hex64(0));
1493   IO.mapRequired("Size", E.Size);
1494 }
1495 
1496 void MappingTraits<ELFYAML::GnuHashHeader>::mapping(IO &IO,
1497                                                     ELFYAML::GnuHashHeader &E) {
1498   assert(IO.getContext() && "The IO context is not initialized");
1499   IO.mapOptional("NBuckets", E.NBuckets);
1500   IO.mapRequired("SymNdx", E.SymNdx);
1501   IO.mapOptional("MaskWords", E.MaskWords);
1502   IO.mapRequired("Shift2", E.Shift2);
1503 }
1504 
1505 void MappingTraits<ELFYAML::DynamicEntry>::mapping(IO &IO,
1506                                                    ELFYAML::DynamicEntry &Rel) {
1507   assert(IO.getContext() && "The IO context is not initialized");
1508 
1509   IO.mapRequired("Tag", Rel.Tag);
1510   IO.mapRequired("Value", Rel.Val);
1511 }
1512 
1513 void MappingTraits<ELFYAML::NoteEntry>::mapping(IO &IO, ELFYAML::NoteEntry &N) {
1514   assert(IO.getContext() && "The IO context is not initialized");
1515 
1516   IO.mapOptional("Name", N.Name);
1517   IO.mapOptional("Desc", N.Desc);
1518   IO.mapRequired("Type", N.Type);
1519 }
1520 
1521 void MappingTraits<ELFYAML::VerdefEntry>::mapping(IO &IO,
1522                                                   ELFYAML::VerdefEntry &E) {
1523   assert(IO.getContext() && "The IO context is not initialized");
1524 
1525   IO.mapRequired("Version", E.Version);
1526   IO.mapRequired("Flags", E.Flags);
1527   IO.mapRequired("VersionNdx", E.VersionNdx);
1528   IO.mapRequired("Hash", E.Hash);
1529   IO.mapRequired("Names", E.VerNames);
1530 }
1531 
1532 void MappingTraits<ELFYAML::VerneedEntry>::mapping(IO &IO,
1533                                                    ELFYAML::VerneedEntry &E) {
1534   assert(IO.getContext() && "The IO context is not initialized");
1535 
1536   IO.mapRequired("Version", E.Version);
1537   IO.mapRequired("File", E.File);
1538   IO.mapRequired("Entries", E.AuxV);
1539 }
1540 
1541 void MappingTraits<ELFYAML::VernauxEntry>::mapping(IO &IO,
1542                                                    ELFYAML::VernauxEntry &E) {
1543   assert(IO.getContext() && "The IO context is not initialized");
1544 
1545   IO.mapRequired("Name", E.Name);
1546   IO.mapRequired("Hash", E.Hash);
1547   IO.mapRequired("Flags", E.Flags);
1548   IO.mapRequired("Other", E.Other);
1549 }
1550 
1551 void MappingTraits<ELFYAML::Relocation>::mapping(IO &IO,
1552                                                  ELFYAML::Relocation &Rel) {
1553   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
1554   assert(Object && "The IO context is not initialized");
1555 
1556   IO.mapRequired("Offset", Rel.Offset);
1557   IO.mapOptional("Symbol", Rel.Symbol);
1558 
1559   if (Object->Header.Machine == ELFYAML::ELF_EM(ELF::EM_MIPS) &&
1560       Object->Header.Class == ELFYAML::ELF_ELFCLASS(ELF::ELFCLASS64)) {
1561     MappingNormalization<NormalizedMips64RelType, ELFYAML::ELF_REL> Key(
1562         IO, Rel.Type);
1563     IO.mapRequired("Type", Key->Type);
1564     IO.mapOptional("Type2", Key->Type2, ELFYAML::ELF_REL(ELF::R_MIPS_NONE));
1565     IO.mapOptional("Type3", Key->Type3, ELFYAML::ELF_REL(ELF::R_MIPS_NONE));
1566     IO.mapOptional("SpecSym", Key->SpecSym, ELFYAML::ELF_RSS(ELF::RSS_UNDEF));
1567   } else
1568     IO.mapRequired("Type", Rel.Type);
1569 
1570   IO.mapOptional("Addend", Rel.Addend, (int64_t)0);
1571 }
1572 
1573 void MappingTraits<ELFYAML::Object>::mapping(IO &IO, ELFYAML::Object &Object) {
1574   assert(!IO.getContext() && "The IO context is initialized already");
1575   IO.setContext(&Object);
1576   IO.mapTag("!ELF", true);
1577   IO.mapRequired("FileHeader", Object.Header);
1578   IO.mapOptional("ProgramHeaders", Object.ProgramHeaders);
1579   IO.mapOptional("Sections", Object.Chunks);
1580   IO.mapOptional("Symbols", Object.Symbols);
1581   IO.mapOptional("DynamicSymbols", Object.DynamicSymbols);
1582   IO.setContext(nullptr);
1583 }
1584 
1585 void MappingTraits<ELFYAML::AddrsigSymbol>::mapping(IO &IO, ELFYAML::AddrsigSymbol &Sym) {
1586   assert(IO.getContext() && "The IO context is not initialized");
1587   IO.mapOptional("Name", Sym.Name);
1588   IO.mapOptional("Index", Sym.Index);
1589 }
1590 
1591 void MappingTraits<ELFYAML::LinkerOption>::mapping(IO &IO,
1592                                                    ELFYAML::LinkerOption &Opt) {
1593   assert(IO.getContext() && "The IO context is not initialized");
1594   IO.mapRequired("Name", Opt.Key);
1595   IO.mapRequired("Value", Opt.Value);
1596 }
1597 
1598 LLVM_YAML_STRONG_TYPEDEF(uint8_t, MIPS_AFL_REG)
1599 LLVM_YAML_STRONG_TYPEDEF(uint8_t, MIPS_ABI_FP)
1600 LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_AFL_EXT)
1601 LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_AFL_ASE)
1602 LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_AFL_FLAGS1)
1603 
1604 } // end namespace yaml
1605 
1606 } // end namespace llvm
1607