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_MACH_V66);
353     BCase(EF_HEXAGON_MACH_V67);
354     BCase(EF_HEXAGON_MACH_V67T);
355     BCase(EF_HEXAGON_ISA_V2);
356     BCase(EF_HEXAGON_ISA_V3);
357     BCase(EF_HEXAGON_ISA_V4);
358     BCase(EF_HEXAGON_ISA_V5);
359     BCase(EF_HEXAGON_ISA_V55);
360     BCase(EF_HEXAGON_ISA_V60);
361     BCase(EF_HEXAGON_ISA_V62);
362     BCase(EF_HEXAGON_ISA_V65);
363     BCase(EF_HEXAGON_ISA_V66);
364     BCase(EF_HEXAGON_ISA_V67);
365     break;
366   case ELF::EM_AVR:
367     BCase(EF_AVR_ARCH_AVR1);
368     BCase(EF_AVR_ARCH_AVR2);
369     BCase(EF_AVR_ARCH_AVR25);
370     BCase(EF_AVR_ARCH_AVR3);
371     BCase(EF_AVR_ARCH_AVR31);
372     BCase(EF_AVR_ARCH_AVR35);
373     BCase(EF_AVR_ARCH_AVR4);
374     BCase(EF_AVR_ARCH_AVR51);
375     BCase(EF_AVR_ARCH_AVR6);
376     BCase(EF_AVR_ARCH_AVRTINY);
377     BCase(EF_AVR_ARCH_XMEGA1);
378     BCase(EF_AVR_ARCH_XMEGA2);
379     BCase(EF_AVR_ARCH_XMEGA3);
380     BCase(EF_AVR_ARCH_XMEGA4);
381     BCase(EF_AVR_ARCH_XMEGA5);
382     BCase(EF_AVR_ARCH_XMEGA6);
383     BCase(EF_AVR_ARCH_XMEGA7);
384     break;
385   case ELF::EM_RISCV:
386     BCase(EF_RISCV_RVC);
387     BCaseMask(EF_RISCV_FLOAT_ABI_SOFT, EF_RISCV_FLOAT_ABI);
388     BCaseMask(EF_RISCV_FLOAT_ABI_SINGLE, EF_RISCV_FLOAT_ABI);
389     BCaseMask(EF_RISCV_FLOAT_ABI_DOUBLE, EF_RISCV_FLOAT_ABI);
390     BCaseMask(EF_RISCV_FLOAT_ABI_QUAD, EF_RISCV_FLOAT_ABI);
391     BCase(EF_RISCV_RVE);
392     break;
393   case ELF::EM_AMDGPU:
394     BCaseMask(EF_AMDGPU_MACH_NONE, EF_AMDGPU_MACH);
395     BCaseMask(EF_AMDGPU_MACH_R600_R600, EF_AMDGPU_MACH);
396     BCaseMask(EF_AMDGPU_MACH_R600_R630, EF_AMDGPU_MACH);
397     BCaseMask(EF_AMDGPU_MACH_R600_RS880, EF_AMDGPU_MACH);
398     BCaseMask(EF_AMDGPU_MACH_R600_RV670, EF_AMDGPU_MACH);
399     BCaseMask(EF_AMDGPU_MACH_R600_RV710, EF_AMDGPU_MACH);
400     BCaseMask(EF_AMDGPU_MACH_R600_RV730, EF_AMDGPU_MACH);
401     BCaseMask(EF_AMDGPU_MACH_R600_RV770, EF_AMDGPU_MACH);
402     BCaseMask(EF_AMDGPU_MACH_R600_CEDAR, EF_AMDGPU_MACH);
403     BCaseMask(EF_AMDGPU_MACH_R600_CYPRESS, EF_AMDGPU_MACH);
404     BCaseMask(EF_AMDGPU_MACH_R600_JUNIPER, EF_AMDGPU_MACH);
405     BCaseMask(EF_AMDGPU_MACH_R600_REDWOOD, EF_AMDGPU_MACH);
406     BCaseMask(EF_AMDGPU_MACH_R600_SUMO, EF_AMDGPU_MACH);
407     BCaseMask(EF_AMDGPU_MACH_R600_BARTS, EF_AMDGPU_MACH);
408     BCaseMask(EF_AMDGPU_MACH_R600_CAICOS, EF_AMDGPU_MACH);
409     BCaseMask(EF_AMDGPU_MACH_R600_CAYMAN, EF_AMDGPU_MACH);
410     BCaseMask(EF_AMDGPU_MACH_R600_TURKS, EF_AMDGPU_MACH);
411     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX600, EF_AMDGPU_MACH);
412     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX601, EF_AMDGPU_MACH);
413     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX700, EF_AMDGPU_MACH);
414     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX701, EF_AMDGPU_MACH);
415     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX702, EF_AMDGPU_MACH);
416     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX703, EF_AMDGPU_MACH);
417     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX704, EF_AMDGPU_MACH);
418     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX801, EF_AMDGPU_MACH);
419     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX802, EF_AMDGPU_MACH);
420     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX803, EF_AMDGPU_MACH);
421     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX810, EF_AMDGPU_MACH);
422     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX900, EF_AMDGPU_MACH);
423     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX902, EF_AMDGPU_MACH);
424     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX904, EF_AMDGPU_MACH);
425     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX906, EF_AMDGPU_MACH);
426     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX908, EF_AMDGPU_MACH);
427     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX909, EF_AMDGPU_MACH);
428     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX1010, EF_AMDGPU_MACH);
429     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX1011, EF_AMDGPU_MACH);
430     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX1012, EF_AMDGPU_MACH);
431     BCase(EF_AMDGPU_XNACK);
432     BCase(EF_AMDGPU_SRAM_ECC);
433     break;
434   case ELF::EM_X86_64:
435     break;
436   default:
437     llvm_unreachable("Unsupported architecture");
438   }
439 #undef BCase
440 #undef BCaseMask
441 }
442 
443 void ScalarEnumerationTraits<ELFYAML::ELF_SHT>::enumeration(
444     IO &IO, ELFYAML::ELF_SHT &Value) {
445   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
446   assert(Object && "The IO context is not initialized");
447 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
448   ECase(SHT_NULL);
449   ECase(SHT_PROGBITS);
450   ECase(SHT_SYMTAB);
451   // FIXME: Issue a diagnostic with this information.
452   ECase(SHT_STRTAB);
453   ECase(SHT_RELA);
454   ECase(SHT_HASH);
455   ECase(SHT_DYNAMIC);
456   ECase(SHT_NOTE);
457   ECase(SHT_NOBITS);
458   ECase(SHT_REL);
459   ECase(SHT_SHLIB);
460   ECase(SHT_DYNSYM);
461   ECase(SHT_INIT_ARRAY);
462   ECase(SHT_FINI_ARRAY);
463   ECase(SHT_PREINIT_ARRAY);
464   ECase(SHT_GROUP);
465   ECase(SHT_SYMTAB_SHNDX);
466   ECase(SHT_RELR);
467   ECase(SHT_ANDROID_REL);
468   ECase(SHT_ANDROID_RELA);
469   ECase(SHT_ANDROID_RELR);
470   ECase(SHT_LLVM_ODRTAB);
471   ECase(SHT_LLVM_LINKER_OPTIONS);
472   ECase(SHT_LLVM_CALL_GRAPH_PROFILE);
473   ECase(SHT_LLVM_ADDRSIG);
474   ECase(SHT_LLVM_DEPENDENT_LIBRARIES);
475   ECase(SHT_LLVM_SYMPART);
476   ECase(SHT_LLVM_PART_EHDR);
477   ECase(SHT_LLVM_PART_PHDR);
478   ECase(SHT_GNU_ATTRIBUTES);
479   ECase(SHT_GNU_HASH);
480   ECase(SHT_GNU_verdef);
481   ECase(SHT_GNU_verneed);
482   ECase(SHT_GNU_versym);
483   switch (Object->Header.Machine) {
484   case ELF::EM_ARM:
485     ECase(SHT_ARM_EXIDX);
486     ECase(SHT_ARM_PREEMPTMAP);
487     ECase(SHT_ARM_ATTRIBUTES);
488     ECase(SHT_ARM_DEBUGOVERLAY);
489     ECase(SHT_ARM_OVERLAYSECTION);
490     break;
491   case ELF::EM_HEXAGON:
492     ECase(SHT_HEX_ORDERED);
493     break;
494   case ELF::EM_X86_64:
495     ECase(SHT_X86_64_UNWIND);
496     break;
497   case ELF::EM_MIPS:
498     ECase(SHT_MIPS_REGINFO);
499     ECase(SHT_MIPS_OPTIONS);
500     ECase(SHT_MIPS_DWARF);
501     ECase(SHT_MIPS_ABIFLAGS);
502     break;
503   default:
504     // Nothing to do.
505     break;
506   }
507 #undef ECase
508   IO.enumFallback<Hex32>(Value);
509 }
510 
511 void ScalarBitSetTraits<ELFYAML::ELF_PF>::bitset(IO &IO,
512                                                  ELFYAML::ELF_PF &Value) {
513 #define BCase(X) IO.bitSetCase(Value, #X, ELF::X)
514   BCase(PF_X);
515   BCase(PF_W);
516   BCase(PF_R);
517 }
518 
519 void ScalarBitSetTraits<ELFYAML::ELF_SHF>::bitset(IO &IO,
520                                                   ELFYAML::ELF_SHF &Value) {
521   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
522 #define BCase(X) IO.bitSetCase(Value, #X, ELF::X)
523   BCase(SHF_WRITE);
524   BCase(SHF_ALLOC);
525   BCase(SHF_EXCLUDE);
526   BCase(SHF_EXECINSTR);
527   BCase(SHF_MERGE);
528   BCase(SHF_STRINGS);
529   BCase(SHF_INFO_LINK);
530   BCase(SHF_LINK_ORDER);
531   BCase(SHF_OS_NONCONFORMING);
532   BCase(SHF_GROUP);
533   BCase(SHF_TLS);
534   BCase(SHF_COMPRESSED);
535   switch (Object->Header.Machine) {
536   case ELF::EM_ARM:
537     BCase(SHF_ARM_PURECODE);
538     break;
539   case ELF::EM_HEXAGON:
540     BCase(SHF_HEX_GPREL);
541     break;
542   case ELF::EM_MIPS:
543     BCase(SHF_MIPS_NODUPES);
544     BCase(SHF_MIPS_NAMES);
545     BCase(SHF_MIPS_LOCAL);
546     BCase(SHF_MIPS_NOSTRIP);
547     BCase(SHF_MIPS_GPREL);
548     BCase(SHF_MIPS_MERGE);
549     BCase(SHF_MIPS_ADDR);
550     BCase(SHF_MIPS_STRING);
551     break;
552   case ELF::EM_X86_64:
553     BCase(SHF_X86_64_LARGE);
554     break;
555   default:
556     // Nothing to do.
557     break;
558   }
559 #undef BCase
560 }
561 
562 void ScalarEnumerationTraits<ELFYAML::ELF_SHN>::enumeration(
563     IO &IO, ELFYAML::ELF_SHN &Value) {
564 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
565   ECase(SHN_UNDEF);
566   ECase(SHN_LORESERVE);
567   ECase(SHN_LOPROC);
568   ECase(SHN_HIPROC);
569   ECase(SHN_LOOS);
570   ECase(SHN_HIOS);
571   ECase(SHN_ABS);
572   ECase(SHN_COMMON);
573   ECase(SHN_XINDEX);
574   ECase(SHN_HIRESERVE);
575   ECase(SHN_AMDGPU_LDS);
576   ECase(SHN_HEXAGON_SCOMMON);
577   ECase(SHN_HEXAGON_SCOMMON_1);
578   ECase(SHN_HEXAGON_SCOMMON_2);
579   ECase(SHN_HEXAGON_SCOMMON_4);
580   ECase(SHN_HEXAGON_SCOMMON_8);
581 #undef ECase
582   IO.enumFallback<Hex16>(Value);
583 }
584 
585 void ScalarEnumerationTraits<ELFYAML::ELF_STB>::enumeration(
586     IO &IO, ELFYAML::ELF_STB &Value) {
587 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
588   ECase(STB_LOCAL);
589   ECase(STB_GLOBAL);
590   ECase(STB_WEAK);
591   ECase(STB_GNU_UNIQUE);
592 #undef ECase
593   IO.enumFallback<Hex8>(Value);
594 }
595 
596 void ScalarEnumerationTraits<ELFYAML::ELF_STT>::enumeration(
597     IO &IO, ELFYAML::ELF_STT &Value) {
598 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
599   ECase(STT_NOTYPE);
600   ECase(STT_OBJECT);
601   ECase(STT_FUNC);
602   ECase(STT_SECTION);
603   ECase(STT_FILE);
604   ECase(STT_COMMON);
605   ECase(STT_TLS);
606   ECase(STT_GNU_IFUNC);
607 #undef ECase
608   IO.enumFallback<Hex8>(Value);
609 }
610 
611 
612 void ScalarEnumerationTraits<ELFYAML::ELF_RSS>::enumeration(
613     IO &IO, ELFYAML::ELF_RSS &Value) {
614 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
615   ECase(RSS_UNDEF);
616   ECase(RSS_GP);
617   ECase(RSS_GP0);
618   ECase(RSS_LOC);
619 #undef ECase
620 }
621 
622 void ScalarEnumerationTraits<ELFYAML::ELF_REL>::enumeration(
623     IO &IO, ELFYAML::ELF_REL &Value) {
624   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
625   assert(Object && "The IO context is not initialized");
626 #define ELF_RELOC(X, Y) IO.enumCase(Value, #X, ELF::X);
627   switch (Object->Header.Machine) {
628   case ELF::EM_X86_64:
629 #include "llvm/BinaryFormat/ELFRelocs/x86_64.def"
630     break;
631   case ELF::EM_MIPS:
632 #include "llvm/BinaryFormat/ELFRelocs/Mips.def"
633     break;
634   case ELF::EM_HEXAGON:
635 #include "llvm/BinaryFormat/ELFRelocs/Hexagon.def"
636     break;
637   case ELF::EM_386:
638   case ELF::EM_IAMCU:
639 #include "llvm/BinaryFormat/ELFRelocs/i386.def"
640     break;
641   case ELF::EM_AARCH64:
642 #include "llvm/BinaryFormat/ELFRelocs/AArch64.def"
643     break;
644   case ELF::EM_ARM:
645 #include "llvm/BinaryFormat/ELFRelocs/ARM.def"
646     break;
647   case ELF::EM_ARC:
648 #include "llvm/BinaryFormat/ELFRelocs/ARC.def"
649     break;
650   case ELF::EM_RISCV:
651 #include "llvm/BinaryFormat/ELFRelocs/RISCV.def"
652     break;
653   case ELF::EM_LANAI:
654 #include "llvm/BinaryFormat/ELFRelocs/Lanai.def"
655     break;
656   case ELF::EM_AMDGPU:
657 #include "llvm/BinaryFormat/ELFRelocs/AMDGPU.def"
658     break;
659   case ELF::EM_BPF:
660 #include "llvm/BinaryFormat/ELFRelocs/BPF.def"
661     break;
662   case ELF::EM_PPC64:
663 #include "llvm/BinaryFormat/ELFRelocs/PowerPC64.def"
664     break;
665   default:
666     // Nothing to do.
667     break;
668   }
669 #undef ELF_RELOC
670   IO.enumFallback<Hex32>(Value);
671 }
672 
673 void ScalarEnumerationTraits<ELFYAML::ELF_DYNTAG>::enumeration(
674     IO &IO, ELFYAML::ELF_DYNTAG &Value) {
675   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
676   assert(Object && "The IO context is not initialized");
677 
678 // Disable architecture specific tags by default. We might enable them below.
679 #define AARCH64_DYNAMIC_TAG(name, value)
680 #define MIPS_DYNAMIC_TAG(name, value)
681 #define HEXAGON_DYNAMIC_TAG(name, value)
682 #define PPC_DYNAMIC_TAG(name, value)
683 #define PPC64_DYNAMIC_TAG(name, value)
684 // Ignore marker tags such as DT_HIOS (maps to DT_VERNEEDNUM), etc.
685 #define DYNAMIC_TAG_MARKER(name, value)
686 
687 #define STRINGIFY(X) (#X)
688 #define DYNAMIC_TAG(X, Y) IO.enumCase(Value, STRINGIFY(DT_##X), ELF::DT_##X);
689   switch (Object->Header.Machine) {
690   case ELF::EM_AARCH64:
691 #undef AARCH64_DYNAMIC_TAG
692 #define AARCH64_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
693 #include "llvm/BinaryFormat/DynamicTags.def"
694 #undef AARCH64_DYNAMIC_TAG
695 #define AARCH64_DYNAMIC_TAG(name, value)
696     break;
697   case ELF::EM_MIPS:
698 #undef MIPS_DYNAMIC_TAG
699 #define MIPS_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
700 #include "llvm/BinaryFormat/DynamicTags.def"
701 #undef MIPS_DYNAMIC_TAG
702 #define MIPS_DYNAMIC_TAG(name, value)
703     break;
704   case ELF::EM_HEXAGON:
705 #undef HEXAGON_DYNAMIC_TAG
706 #define HEXAGON_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
707 #include "llvm/BinaryFormat/DynamicTags.def"
708 #undef HEXAGON_DYNAMIC_TAG
709 #define HEXAGON_DYNAMIC_TAG(name, value)
710     break;
711   case ELF::EM_PPC:
712 #undef PPC_DYNAMIC_TAG
713 #define PPC_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
714 #include "llvm/BinaryFormat/DynamicTags.def"
715 #undef PPC_DYNAMIC_TAG
716 #define PPC_DYNAMIC_TAG(name, value)
717     break;
718   case ELF::EM_PPC64:
719 #undef PPC64_DYNAMIC_TAG
720 #define PPC64_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
721 #include "llvm/BinaryFormat/DynamicTags.def"
722 #undef PPC64_DYNAMIC_TAG
723 #define PPC64_DYNAMIC_TAG(name, value)
724     break;
725   default:
726 #include "llvm/BinaryFormat/DynamicTags.def"
727     break;
728   }
729 #undef AARCH64_DYNAMIC_TAG
730 #undef MIPS_DYNAMIC_TAG
731 #undef HEXAGON_DYNAMIC_TAG
732 #undef PPC_DYNAMIC_TAG
733 #undef PPC64_DYNAMIC_TAG
734 #undef DYNAMIC_TAG_MARKER
735 #undef STRINGIFY
736 #undef DYNAMIC_TAG
737 
738   IO.enumFallback<Hex64>(Value);
739 }
740 
741 void ScalarEnumerationTraits<ELFYAML::MIPS_AFL_REG>::enumeration(
742     IO &IO, ELFYAML::MIPS_AFL_REG &Value) {
743 #define ECase(X) IO.enumCase(Value, #X, Mips::AFL_##X)
744   ECase(REG_NONE);
745   ECase(REG_32);
746   ECase(REG_64);
747   ECase(REG_128);
748 #undef ECase
749 }
750 
751 void ScalarEnumerationTraits<ELFYAML::MIPS_ABI_FP>::enumeration(
752     IO &IO, ELFYAML::MIPS_ABI_FP &Value) {
753 #define ECase(X) IO.enumCase(Value, #X, Mips::Val_GNU_MIPS_ABI_##X)
754   ECase(FP_ANY);
755   ECase(FP_DOUBLE);
756   ECase(FP_SINGLE);
757   ECase(FP_SOFT);
758   ECase(FP_OLD_64);
759   ECase(FP_XX);
760   ECase(FP_64);
761   ECase(FP_64A);
762 #undef ECase
763 }
764 
765 void ScalarEnumerationTraits<ELFYAML::MIPS_AFL_EXT>::enumeration(
766     IO &IO, ELFYAML::MIPS_AFL_EXT &Value) {
767 #define ECase(X) IO.enumCase(Value, #X, Mips::AFL_##X)
768   ECase(EXT_NONE);
769   ECase(EXT_XLR);
770   ECase(EXT_OCTEON2);
771   ECase(EXT_OCTEONP);
772   ECase(EXT_LOONGSON_3A);
773   ECase(EXT_OCTEON);
774   ECase(EXT_5900);
775   ECase(EXT_4650);
776   ECase(EXT_4010);
777   ECase(EXT_4100);
778   ECase(EXT_3900);
779   ECase(EXT_10000);
780   ECase(EXT_SB1);
781   ECase(EXT_4111);
782   ECase(EXT_4120);
783   ECase(EXT_5400);
784   ECase(EXT_5500);
785   ECase(EXT_LOONGSON_2E);
786   ECase(EXT_LOONGSON_2F);
787   ECase(EXT_OCTEON3);
788 #undef ECase
789 }
790 
791 void ScalarEnumerationTraits<ELFYAML::MIPS_ISA>::enumeration(
792     IO &IO, ELFYAML::MIPS_ISA &Value) {
793   IO.enumCase(Value, "MIPS1", 1);
794   IO.enumCase(Value, "MIPS2", 2);
795   IO.enumCase(Value, "MIPS3", 3);
796   IO.enumCase(Value, "MIPS4", 4);
797   IO.enumCase(Value, "MIPS5", 5);
798   IO.enumCase(Value, "MIPS32", 32);
799   IO.enumCase(Value, "MIPS64", 64);
800 }
801 
802 void ScalarBitSetTraits<ELFYAML::MIPS_AFL_ASE>::bitset(
803     IO &IO, ELFYAML::MIPS_AFL_ASE &Value) {
804 #define BCase(X) IO.bitSetCase(Value, #X, Mips::AFL_ASE_##X)
805   BCase(DSP);
806   BCase(DSPR2);
807   BCase(EVA);
808   BCase(MCU);
809   BCase(MDMX);
810   BCase(MIPS3D);
811   BCase(MT);
812   BCase(SMARTMIPS);
813   BCase(VIRT);
814   BCase(MSA);
815   BCase(MIPS16);
816   BCase(MICROMIPS);
817   BCase(XPA);
818 #undef BCase
819 }
820 
821 void ScalarBitSetTraits<ELFYAML::MIPS_AFL_FLAGS1>::bitset(
822     IO &IO, ELFYAML::MIPS_AFL_FLAGS1 &Value) {
823 #define BCase(X) IO.bitSetCase(Value, #X, Mips::AFL_FLAGS1_##X)
824   BCase(ODDSPREG);
825 #undef BCase
826 }
827 
828 void MappingTraits<ELFYAML::FileHeader>::mapping(IO &IO,
829                                                  ELFYAML::FileHeader &FileHdr) {
830   IO.mapRequired("Class", FileHdr.Class);
831   IO.mapRequired("Data", FileHdr.Data);
832   IO.mapOptional("OSABI", FileHdr.OSABI, ELFYAML::ELF_ELFOSABI(0));
833   IO.mapOptional("ABIVersion", FileHdr.ABIVersion, Hex8(0));
834   IO.mapRequired("Type", FileHdr.Type);
835   IO.mapRequired("Machine", FileHdr.Machine);
836   IO.mapOptional("Flags", FileHdr.Flags, ELFYAML::ELF_EF(0));
837   IO.mapOptional("Entry", FileHdr.Entry, Hex64(0));
838 
839   IO.mapOptional("SHEntSize", FileHdr.SHEntSize);
840   IO.mapOptional("SHOff", FileHdr.SHOff);
841   IO.mapOptional("SHNum", FileHdr.SHNum);
842   IO.mapOptional("SHStrNdx", FileHdr.SHStrNdx);
843 }
844 
845 void MappingTraits<ELFYAML::ProgramHeader>::mapping(
846     IO &IO, ELFYAML::ProgramHeader &Phdr) {
847   IO.mapRequired("Type", Phdr.Type);
848   IO.mapOptional("Flags", Phdr.Flags, ELFYAML::ELF_PF(0));
849   IO.mapOptional("Sections", Phdr.Sections);
850   IO.mapOptional("VAddr", Phdr.VAddr, Hex64(0));
851   IO.mapOptional("PAddr", Phdr.PAddr, Hex64(0));
852   IO.mapOptional("Align", Phdr.Align);
853   IO.mapOptional("FileSize", Phdr.FileSize);
854   IO.mapOptional("MemSize", Phdr.MemSize);
855   IO.mapOptional("Offset", Phdr.Offset);
856 }
857 
858 LLVM_YAML_STRONG_TYPEDEF(StringRef, StOtherPiece)
859 
860 template <> struct ScalarTraits<StOtherPiece> {
861   static void output(const StOtherPiece &Val, void *, raw_ostream &Out) {
862     Out << Val;
863   }
864   static StringRef input(StringRef Scalar, void *, StOtherPiece &Val) {
865     Val = Scalar;
866     return {};
867   }
868   static QuotingType mustQuote(StringRef) { return QuotingType::None; }
869 };
870 template <> struct SequenceElementTraits<StOtherPiece> {
871   static const bool flow = true;
872 };
873 
874 template <> struct ScalarTraits<ELFYAML::YAMLFlowString> {
875   static void output(const ELFYAML::YAMLFlowString &Val, void *,
876                      raw_ostream &Out) {
877     Out << Val;
878   }
879   static StringRef input(StringRef Scalar, void *,
880                          ELFYAML::YAMLFlowString &Val) {
881     Val = Scalar;
882     return {};
883   }
884   static QuotingType mustQuote(StringRef S) {
885     return ScalarTraits<StringRef>::mustQuote(S);
886   }
887 };
888 template <> struct SequenceElementTraits<ELFYAML::YAMLFlowString> {
889   static const bool flow = true;
890 };
891 
892 namespace {
893 
894 struct NormalizedOther {
895   NormalizedOther(IO &IO) : YamlIO(IO) {}
896   NormalizedOther(IO &IO, Optional<uint8_t> Original) : YamlIO(IO) {
897     assert(Original && "This constructor is only used for outputting YAML and "
898                        "assumes a non-empty Original");
899     std::vector<StOtherPiece> Ret;
900     const auto *Object = static_cast<ELFYAML::Object *>(YamlIO.getContext());
901     for (std::pair<StringRef, uint8_t> &P :
902          getFlags(Object->Header.Machine).takeVector()) {
903       uint8_t FlagValue = P.second;
904       if ((*Original & FlagValue) != FlagValue)
905         continue;
906       *Original &= ~FlagValue;
907       Ret.push_back({P.first});
908     }
909 
910     if (*Original != 0) {
911       UnknownFlagsHolder = std::to_string(*Original);
912       Ret.push_back({UnknownFlagsHolder});
913     }
914 
915     if (!Ret.empty())
916       Other = std::move(Ret);
917   }
918 
919   uint8_t toValue(StringRef Name) {
920     const auto *Object = static_cast<ELFYAML::Object *>(YamlIO.getContext());
921     MapVector<StringRef, uint8_t> Flags = getFlags(Object->Header.Machine);
922 
923     auto It = Flags.find(Name);
924     if (It != Flags.end())
925       return It->second;
926 
927     uint8_t Val;
928     if (to_integer(Name, Val))
929       return Val;
930 
931     YamlIO.setError("an unknown value is used for symbol's 'Other' field: " +
932                     Name);
933     return 0;
934   }
935 
936   Optional<uint8_t> denormalize(IO &) {
937     if (!Other)
938       return None;
939     uint8_t Ret = 0;
940     for (StOtherPiece &Val : *Other)
941       Ret |= toValue(Val);
942     return Ret;
943   }
944 
945   // st_other field is used to encode symbol visibility and platform-dependent
946   // flags and values. This method returns a name to value map that is used for
947   // parsing and encoding this field.
948   MapVector<StringRef, uint8_t> getFlags(unsigned EMachine) {
949     MapVector<StringRef, uint8_t> Map;
950     // STV_* values are just enumeration values. We add them in a reversed order
951     // because when we convert the st_other to named constants when printing
952     // YAML we want to use a maximum number of bits on each step:
953     // when we have st_other == 3, we want to print it as STV_PROTECTED (3), but
954     // not as STV_HIDDEN (2) + STV_INTERNAL (1).
955     Map["STV_PROTECTED"] = ELF::STV_PROTECTED;
956     Map["STV_HIDDEN"] = ELF::STV_HIDDEN;
957     Map["STV_INTERNAL"] = ELF::STV_INTERNAL;
958     // STV_DEFAULT is used to represent the default visibility and has a value
959     // 0. We want to be able to read it from YAML documents, but there is no
960     // reason to print it.
961     if (!YamlIO.outputting())
962       Map["STV_DEFAULT"] = ELF::STV_DEFAULT;
963 
964     // MIPS is not consistent. All of the STO_MIPS_* values are bit flags,
965     // except STO_MIPS_MIPS16 which overlaps them. It should be checked and
966     // consumed first when we print the output, because we do not want to print
967     // any other flags that have the same bits instead.
968     if (EMachine == ELF::EM_MIPS) {
969       Map["STO_MIPS_MIPS16"] = ELF::STO_MIPS_MIPS16;
970       Map["STO_MIPS_MICROMIPS"] = ELF::STO_MIPS_MICROMIPS;
971       Map["STO_MIPS_PIC"] = ELF::STO_MIPS_PIC;
972       Map["STO_MIPS_PLT"] = ELF::STO_MIPS_PLT;
973       Map["STO_MIPS_OPTIONAL"] = ELF::STO_MIPS_OPTIONAL;
974     }
975     return Map;
976   }
977 
978   IO &YamlIO;
979   Optional<std::vector<StOtherPiece>> Other;
980   std::string UnknownFlagsHolder;
981 };
982 
983 } // end anonymous namespace
984 
985 void MappingTraits<ELFYAML::Symbol>::mapping(IO &IO, ELFYAML::Symbol &Symbol) {
986   IO.mapOptional("Name", Symbol.Name, StringRef());
987   IO.mapOptional("StName", Symbol.StName);
988   IO.mapOptional("Type", Symbol.Type, ELFYAML::ELF_STT(0));
989   IO.mapOptional("Section", Symbol.Section, StringRef());
990   IO.mapOptional("Index", Symbol.Index);
991   IO.mapOptional("Binding", Symbol.Binding, ELFYAML::ELF_STB(0));
992   IO.mapOptional("Value", Symbol.Value, Hex64(0));
993   IO.mapOptional("Size", Symbol.Size, Hex64(0));
994 
995   // Symbol's Other field is a bit special. It is usually a field that
996   // represents st_other and holds the symbol visibility. However, on some
997   // platforms, it can contain bit fields and regular values, or even sometimes a
998   // crazy mix of them (see comments for NormalizedOther). Because of this, we
999   // need special handling.
1000   MappingNormalization<NormalizedOther, Optional<uint8_t>> Keys(IO,
1001                                                                 Symbol.Other);
1002   IO.mapOptional("Other", Keys->Other);
1003 }
1004 
1005 StringRef MappingTraits<ELFYAML::Symbol>::validate(IO &IO,
1006                                                    ELFYAML::Symbol &Symbol) {
1007   if (Symbol.Index && Symbol.Section.data())
1008     return "Index and Section cannot both be specified for Symbol";
1009   return StringRef();
1010 }
1011 
1012 static void commonSectionMapping(IO &IO, ELFYAML::Section &Section) {
1013   IO.mapOptional("Name", Section.Name, StringRef());
1014   IO.mapRequired("Type", Section.Type);
1015   IO.mapOptional("Flags", Section.Flags);
1016   IO.mapOptional("Address", Section.Address);
1017   IO.mapOptional("Link", Section.Link, StringRef());
1018   IO.mapOptional("AddressAlign", Section.AddressAlign, Hex64(0));
1019   IO.mapOptional("EntSize", Section.EntSize);
1020 
1021   // obj2yaml does not dump these fields. They are expected to be empty when we
1022   // are producing YAML, because yaml2obj sets appropriate values for them
1023   // automatically when they are not explicitly defined.
1024   assert(!IO.outputting() ||
1025          (!Section.ShOffset.hasValue() && !Section.ShSize.hasValue() &&
1026           !Section.ShName.hasValue() && !Section.ShFlags.hasValue()));
1027   IO.mapOptional("ShName", Section.ShName);
1028   IO.mapOptional("ShOffset", Section.ShOffset);
1029   IO.mapOptional("ShSize", Section.ShSize);
1030   IO.mapOptional("ShFlags", Section.ShFlags);
1031 }
1032 
1033 static void sectionMapping(IO &IO, ELFYAML::DynamicSection &Section) {
1034   commonSectionMapping(IO, Section);
1035   IO.mapOptional("Entries", Section.Entries);
1036   IO.mapOptional("Content", Section.Content);
1037 }
1038 
1039 static void sectionMapping(IO &IO, ELFYAML::RawContentSection &Section) {
1040   commonSectionMapping(IO, Section);
1041   IO.mapOptional("Content", Section.Content);
1042   IO.mapOptional("Size", Section.Size);
1043   IO.mapOptional("Info", Section.Info);
1044 }
1045 
1046 static void sectionMapping(IO &IO, ELFYAML::StackSizesSection &Section) {
1047   commonSectionMapping(IO, Section);
1048   IO.mapOptional("Content", Section.Content);
1049   IO.mapOptional("Size", Section.Size);
1050   IO.mapOptional("Entries", Section.Entries);
1051 }
1052 
1053 static void sectionMapping(IO &IO, ELFYAML::HashSection &Section) {
1054   commonSectionMapping(IO, Section);
1055   IO.mapOptional("Content", Section.Content);
1056   IO.mapOptional("Bucket", Section.Bucket);
1057   IO.mapOptional("Chain", Section.Chain);
1058   IO.mapOptional("Size", Section.Size);
1059 }
1060 
1061 static void sectionMapping(IO &IO, ELFYAML::NoteSection &Section) {
1062   commonSectionMapping(IO, Section);
1063   IO.mapOptional("Content", Section.Content);
1064   IO.mapOptional("Size", Section.Size);
1065   IO.mapOptional("Notes", Section.Notes);
1066 }
1067 
1068 
1069 static void sectionMapping(IO &IO, ELFYAML::GnuHashSection &Section) {
1070   commonSectionMapping(IO, Section);
1071   IO.mapOptional("Content", Section.Content);
1072   IO.mapOptional("Header", Section.Header);
1073   IO.mapOptional("BloomFilter", Section.BloomFilter);
1074   IO.mapOptional("HashBuckets", Section.HashBuckets);
1075   IO.mapOptional("HashValues", Section.HashValues);
1076 }
1077 static void sectionMapping(IO &IO, ELFYAML::NoBitsSection &Section) {
1078   commonSectionMapping(IO, Section);
1079   IO.mapOptional("Size", Section.Size, Hex64(0));
1080 }
1081 
1082 static void sectionMapping(IO &IO, ELFYAML::VerdefSection &Section) {
1083   commonSectionMapping(IO, Section);
1084   IO.mapRequired("Info", Section.Info);
1085   IO.mapOptional("Entries", Section.Entries);
1086   IO.mapOptional("Content", Section.Content);
1087 }
1088 
1089 static void sectionMapping(IO &IO, ELFYAML::SymverSection &Section) {
1090   commonSectionMapping(IO, Section);
1091   IO.mapRequired("Entries", Section.Entries);
1092 }
1093 
1094 static void sectionMapping(IO &IO, ELFYAML::VerneedSection &Section) {
1095   commonSectionMapping(IO, Section);
1096   IO.mapRequired("Info", Section.Info);
1097   IO.mapOptional("Dependencies", Section.VerneedV);
1098   IO.mapOptional("Content", Section.Content);
1099 }
1100 
1101 static void sectionMapping(IO &IO, ELFYAML::RelocationSection &Section) {
1102   commonSectionMapping(IO, Section);
1103   IO.mapOptional("Info", Section.RelocatableSec, StringRef());
1104   IO.mapOptional("Relocations", Section.Relocations);
1105 }
1106 
1107 static void sectionMapping(IO &IO, ELFYAML::RelrSection &Section) {
1108   commonSectionMapping(IO, Section);
1109   IO.mapOptional("Entries", Section.Entries);
1110   IO.mapOptional("Content", Section.Content);
1111 }
1112 
1113 static void groupSectionMapping(IO &IO, ELFYAML::Group &Group) {
1114   commonSectionMapping(IO, Group);
1115   IO.mapOptional("Info", Group.Signature);
1116   IO.mapRequired("Members", Group.Members);
1117 }
1118 
1119 static void sectionMapping(IO &IO, ELFYAML::SymtabShndxSection &Section) {
1120   commonSectionMapping(IO, Section);
1121   IO.mapRequired("Entries", Section.Entries);
1122 }
1123 
1124 static void sectionMapping(IO &IO, ELFYAML::AddrsigSection &Section) {
1125   commonSectionMapping(IO, Section);
1126   IO.mapOptional("Content", Section.Content);
1127   IO.mapOptional("Size", Section.Size);
1128   IO.mapOptional("Symbols", Section.Symbols);
1129 }
1130 
1131 static void fillMapping(IO &IO, ELFYAML::Fill &Fill) {
1132   IO.mapOptional("Name", Fill.Name, StringRef());
1133   IO.mapOptional("Pattern", Fill.Pattern);
1134   IO.mapRequired("Size", Fill.Size);
1135 }
1136 
1137 static void sectionMapping(IO &IO, ELFYAML::LinkerOptionsSection &Section) {
1138   commonSectionMapping(IO, Section);
1139   IO.mapOptional("Options", Section.Options);
1140   IO.mapOptional("Content", Section.Content);
1141 }
1142 
1143 static void sectionMapping(IO &IO,
1144                            ELFYAML::DependentLibrariesSection &Section) {
1145   commonSectionMapping(IO, Section);
1146   IO.mapOptional("Libraries", Section.Libs);
1147   IO.mapOptional("Content", Section.Content);
1148 }
1149 
1150 static void sectionMapping(IO &IO, ELFYAML::CallGraphProfileSection &Section) {
1151   commonSectionMapping(IO, Section);
1152   IO.mapOptional("Entries", Section.Entries);
1153   IO.mapOptional("Content", Section.Content);
1154 }
1155 
1156 void MappingTraits<ELFYAML::SectionOrType>::mapping(
1157     IO &IO, ELFYAML::SectionOrType &sectionOrType) {
1158   IO.mapRequired("SectionOrType", sectionOrType.sectionNameOrType);
1159 }
1160 
1161 void MappingTraits<ELFYAML::SectionName>::mapping(
1162     IO &IO, ELFYAML::SectionName &sectionName) {
1163   IO.mapRequired("Section", sectionName.Section);
1164 }
1165 
1166 static void sectionMapping(IO &IO, ELFYAML::MipsABIFlags &Section) {
1167   commonSectionMapping(IO, Section);
1168   IO.mapOptional("Version", Section.Version, Hex16(0));
1169   IO.mapRequired("ISA", Section.ISALevel);
1170   IO.mapOptional("ISARevision", Section.ISARevision, Hex8(0));
1171   IO.mapOptional("ISAExtension", Section.ISAExtension,
1172                  ELFYAML::MIPS_AFL_EXT(Mips::AFL_EXT_NONE));
1173   IO.mapOptional("ASEs", Section.ASEs, ELFYAML::MIPS_AFL_ASE(0));
1174   IO.mapOptional("FpABI", Section.FpABI,
1175                  ELFYAML::MIPS_ABI_FP(Mips::Val_GNU_MIPS_ABI_FP_ANY));
1176   IO.mapOptional("GPRSize", Section.GPRSize,
1177                  ELFYAML::MIPS_AFL_REG(Mips::AFL_REG_NONE));
1178   IO.mapOptional("CPR1Size", Section.CPR1Size,
1179                  ELFYAML::MIPS_AFL_REG(Mips::AFL_REG_NONE));
1180   IO.mapOptional("CPR2Size", Section.CPR2Size,
1181                  ELFYAML::MIPS_AFL_REG(Mips::AFL_REG_NONE));
1182   IO.mapOptional("Flags1", Section.Flags1, ELFYAML::MIPS_AFL_FLAGS1(0));
1183   IO.mapOptional("Flags2", Section.Flags2, Hex32(0));
1184 }
1185 
1186 void MappingTraits<std::unique_ptr<ELFYAML::Chunk>>::mapping(
1187     IO &IO, std::unique_ptr<ELFYAML::Chunk> &Section) {
1188   ELFYAML::ELF_SHT Type;
1189   if (IO.outputting()) {
1190     Type = cast<ELFYAML::Section>(Section.get())->Type;
1191   } else {
1192     // When the Type string does not have a "SHT_" prefix, we know it is not a
1193     // description of a regular ELF output section. Currently, we have one
1194     // special type named "Fill". See comments for Fill.
1195     StringRef StrType;
1196     IO.mapRequired("Type", StrType);
1197     if (StrType == "Fill") {
1198       Section.reset(new ELFYAML::Fill());
1199       fillMapping(IO, *cast<ELFYAML::Fill>(Section.get()));
1200       return;
1201     }
1202 
1203     IO.mapRequired("Type", Type);
1204   }
1205 
1206   switch (Type) {
1207   case ELF::SHT_DYNAMIC:
1208     if (!IO.outputting())
1209       Section.reset(new ELFYAML::DynamicSection());
1210     sectionMapping(IO, *cast<ELFYAML::DynamicSection>(Section.get()));
1211     break;
1212   case ELF::SHT_REL:
1213   case ELF::SHT_RELA:
1214     if (!IO.outputting())
1215       Section.reset(new ELFYAML::RelocationSection());
1216     sectionMapping(IO, *cast<ELFYAML::RelocationSection>(Section.get()));
1217     break;
1218   case ELF::SHT_RELR:
1219     if (!IO.outputting())
1220       Section.reset(new ELFYAML::RelrSection());
1221     sectionMapping(IO, *cast<ELFYAML::RelrSection>(Section.get()));
1222     break;
1223   case ELF::SHT_GROUP:
1224     if (!IO.outputting())
1225       Section.reset(new ELFYAML::Group());
1226     groupSectionMapping(IO, *cast<ELFYAML::Group>(Section.get()));
1227     break;
1228   case ELF::SHT_NOBITS:
1229     if (!IO.outputting())
1230       Section.reset(new ELFYAML::NoBitsSection());
1231     sectionMapping(IO, *cast<ELFYAML::NoBitsSection>(Section.get()));
1232     break;
1233   case ELF::SHT_HASH:
1234     if (!IO.outputting())
1235       Section.reset(new ELFYAML::HashSection());
1236     sectionMapping(IO, *cast<ELFYAML::HashSection>(Section.get()));
1237     break;
1238   case ELF::SHT_NOTE:
1239     if (!IO.outputting())
1240       Section.reset(new ELFYAML::NoteSection());
1241     sectionMapping(IO, *cast<ELFYAML::NoteSection>(Section.get()));
1242     break;
1243  case ELF::SHT_GNU_HASH:
1244     if (!IO.outputting())
1245       Section.reset(new ELFYAML::GnuHashSection());
1246     sectionMapping(IO, *cast<ELFYAML::GnuHashSection>(Section.get()));
1247     break;
1248   case ELF::SHT_MIPS_ABIFLAGS:
1249     if (!IO.outputting())
1250       Section.reset(new ELFYAML::MipsABIFlags());
1251     sectionMapping(IO, *cast<ELFYAML::MipsABIFlags>(Section.get()));
1252     break;
1253   case ELF::SHT_GNU_verdef:
1254     if (!IO.outputting())
1255       Section.reset(new ELFYAML::VerdefSection());
1256     sectionMapping(IO, *cast<ELFYAML::VerdefSection>(Section.get()));
1257     break;
1258   case ELF::SHT_GNU_versym:
1259     if (!IO.outputting())
1260       Section.reset(new ELFYAML::SymverSection());
1261     sectionMapping(IO, *cast<ELFYAML::SymverSection>(Section.get()));
1262     break;
1263   case ELF::SHT_GNU_verneed:
1264     if (!IO.outputting())
1265       Section.reset(new ELFYAML::VerneedSection());
1266     sectionMapping(IO, *cast<ELFYAML::VerneedSection>(Section.get()));
1267     break;
1268   case ELF::SHT_SYMTAB_SHNDX:
1269     if (!IO.outputting())
1270       Section.reset(new ELFYAML::SymtabShndxSection());
1271     sectionMapping(IO, *cast<ELFYAML::SymtabShndxSection>(Section.get()));
1272     break;
1273   case ELF::SHT_LLVM_ADDRSIG:
1274     if (!IO.outputting())
1275       Section.reset(new ELFYAML::AddrsigSection());
1276     sectionMapping(IO, *cast<ELFYAML::AddrsigSection>(Section.get()));
1277     break;
1278   case ELF::SHT_LLVM_LINKER_OPTIONS:
1279     if (!IO.outputting())
1280       Section.reset(new ELFYAML::LinkerOptionsSection());
1281     sectionMapping(IO, *cast<ELFYAML::LinkerOptionsSection>(Section.get()));
1282     break;
1283   case ELF::SHT_LLVM_DEPENDENT_LIBRARIES:
1284     if (!IO.outputting())
1285       Section.reset(new ELFYAML::DependentLibrariesSection());
1286     sectionMapping(IO,
1287                    *cast<ELFYAML::DependentLibrariesSection>(Section.get()));
1288     break;
1289   case ELF::SHT_LLVM_CALL_GRAPH_PROFILE:
1290     if (!IO.outputting())
1291       Section.reset(new ELFYAML::CallGraphProfileSection());
1292     sectionMapping(IO, *cast<ELFYAML::CallGraphProfileSection>(Section.get()));
1293     break;
1294   default:
1295     if (!IO.outputting()) {
1296       StringRef Name;
1297       IO.mapOptional("Name", Name, StringRef());
1298       Name = ELFYAML::dropUniqueSuffix(Name);
1299 
1300       if (ELFYAML::StackSizesSection::nameMatches(Name))
1301         Section = std::make_unique<ELFYAML::StackSizesSection>();
1302       else
1303         Section = std::make_unique<ELFYAML::RawContentSection>();
1304     }
1305 
1306     if (auto S = dyn_cast<ELFYAML::RawContentSection>(Section.get()))
1307       sectionMapping(IO, *S);
1308     else
1309       sectionMapping(IO, *cast<ELFYAML::StackSizesSection>(Section.get()));
1310   }
1311 }
1312 
1313 StringRef MappingTraits<std::unique_ptr<ELFYAML::Chunk>>::validate(
1314     IO &io, std::unique_ptr<ELFYAML::Chunk> &C) {
1315   if (const auto *RawSection = dyn_cast<ELFYAML::RawContentSection>(C.get())) {
1316     if (RawSection->Size && RawSection->Content &&
1317         (uint64_t)(*RawSection->Size) < RawSection->Content->binary_size())
1318       return "Section size must be greater than or equal to the content size";
1319     if (RawSection->Flags && RawSection->ShFlags)
1320       return "ShFlags and Flags cannot be used together";
1321     return {};
1322   }
1323 
1324   if (const auto *SS = dyn_cast<ELFYAML::StackSizesSection>(C.get())) {
1325     if (!SS->Entries && !SS->Content && !SS->Size)
1326       return ".stack_sizes: one of Content, Entries and Size must be specified";
1327 
1328     if (SS->Size && SS->Content &&
1329         (uint64_t)(*SS->Size) < SS->Content->binary_size())
1330       return ".stack_sizes: Size must be greater than or equal to the content "
1331              "size";
1332 
1333     // We accept Content, Size or both together when there are no Entries.
1334     if (!SS->Entries)
1335       return {};
1336 
1337     if (SS->Size)
1338       return ".stack_sizes: Size and Entries cannot be used together";
1339     if (SS->Content)
1340       return ".stack_sizes: Content and Entries cannot be used together";
1341     return {};
1342   }
1343 
1344   if (const auto *HS = dyn_cast<ELFYAML::HashSection>(C.get())) {
1345     if (!HS->Content && !HS->Bucket && !HS->Chain && !HS->Size)
1346       return "one of \"Content\", \"Size\", \"Bucket\" or \"Chain\" must be "
1347              "specified";
1348 
1349     if (HS->Content || HS->Size) {
1350       if (HS->Size && HS->Content &&
1351           (uint64_t)*HS->Size < HS->Content->binary_size())
1352         return "\"Size\" must be greater than or equal to the content "
1353                "size";
1354 
1355       if (HS->Bucket)
1356         return "\"Bucket\" cannot be used with \"Content\" or \"Size\"";
1357       if (HS->Chain)
1358         return "\"Chain\" cannot be used with \"Content\" or \"Size\"";
1359       return {};
1360     }
1361 
1362     if ((HS->Bucket && !HS->Chain) || (!HS->Bucket && HS->Chain))
1363       return "\"Bucket\" and \"Chain\" must be used together";
1364     return {};
1365   }
1366 
1367   if (const auto *Sec = dyn_cast<ELFYAML::AddrsigSection>(C.get())) {
1368     if (!Sec->Symbols && !Sec->Content && !Sec->Size)
1369       return "one of \"Content\", \"Size\" or \"Symbols\" must be specified";
1370 
1371     if (Sec->Content || Sec->Size) {
1372       if (Sec->Size && Sec->Content &&
1373           (uint64_t)*Sec->Size < Sec->Content->binary_size())
1374         return "\"Size\" must be greater than or equal to the content "
1375                "size";
1376 
1377       if (Sec->Symbols)
1378         return "\"Symbols\" cannot be used with \"Content\" or \"Size\"";
1379       return {};
1380     }
1381 
1382     if (!Sec->Symbols)
1383       return {};
1384     return {};
1385   }
1386 
1387   if (const auto *NS = dyn_cast<ELFYAML::NoteSection>(C.get())) {
1388     if (!NS->Content && !NS->Size && !NS->Notes)
1389       return "one of \"Content\", \"Size\" or \"Notes\" must be "
1390              "specified";
1391 
1392     if (!NS->Content && !NS->Size)
1393       return {};
1394 
1395     if (NS->Size && NS->Content &&
1396         (uint64_t)*NS->Size < NS->Content->binary_size())
1397       return "\"Size\" must be greater than or equal to the content "
1398              "size";
1399 
1400     if (NS->Notes)
1401       return "\"Notes\" cannot be used with \"Content\" or \"Size\"";
1402     return {};
1403   }
1404 
1405   if (const auto *Sec = dyn_cast<ELFYAML::GnuHashSection>(C.get())) {
1406     if (!Sec->Content && !Sec->Header && !Sec->BloomFilter &&
1407         !Sec->HashBuckets && !Sec->HashValues)
1408       return "either \"Content\" or \"Header\", \"BloomFilter\", "
1409              "\"HashBuckets\" and \"HashBuckets\" must be specified";
1410 
1411     if (Sec->Header || Sec->BloomFilter || Sec->HashBuckets ||
1412         Sec->HashValues) {
1413       if (!Sec->Header || !Sec->BloomFilter || !Sec->HashBuckets ||
1414           !Sec->HashValues)
1415         return "\"Header\", \"BloomFilter\", "
1416                "\"HashBuckets\" and \"HashValues\" must be used together";
1417       if (Sec->Content)
1418         return "\"Header\", \"BloomFilter\", "
1419                "\"HashBuckets\" and \"HashValues\" can't be used together with "
1420                "\"Content\"";
1421       return {};
1422     }
1423 
1424     // Only Content is specified.
1425     return {};
1426   }
1427 
1428   if (const auto *Sec = dyn_cast<ELFYAML::LinkerOptionsSection>(C.get())) {
1429     if (Sec->Options && Sec->Content)
1430       return "\"Options\" and \"Content\" can't be used together";
1431     return {};
1432   }
1433 
1434   if (const auto *Sec = dyn_cast<ELFYAML::DependentLibrariesSection>(C.get())) {
1435     if (Sec->Libs && Sec->Content)
1436       return "SHT_LLVM_DEPENDENT_LIBRARIES: \"Libraries\" and \"Content\" "
1437              "can't "
1438              "be used together";
1439     return {};
1440   }
1441 
1442   if (const auto *F = dyn_cast<ELFYAML::Fill>(C.get())) {
1443     if (!F->Pattern)
1444       return {};
1445     if (F->Pattern->binary_size() != 0 && !F->Size)
1446       return "\"Size\" can't be 0 when \"Pattern\" is not empty";
1447     return {};
1448   }
1449 
1450   if (const auto *VD = dyn_cast<ELFYAML::VerdefSection>(C.get())) {
1451     if (VD->Entries && VD->Content)
1452       return "SHT_GNU_verdef: \"Entries\" and \"Content\" can't be used "
1453              "together";
1454     return {};
1455   }
1456 
1457   if (const auto *VD = dyn_cast<ELFYAML::VerneedSection>(C.get())) {
1458     if (VD->VerneedV && VD->Content)
1459       return "SHT_GNU_verneed: \"Dependencies\" and \"Content\" can't be used "
1460              "together";
1461     return {};
1462   }
1463 
1464   if (const auto *RS = dyn_cast<ELFYAML::RelrSection>(C.get())) {
1465     if (RS->Entries && RS->Content)
1466       return "\"Entries\" and \"Content\" can't be used together";
1467     return {};
1468   }
1469 
1470   if (const auto *CGP = dyn_cast<ELFYAML::CallGraphProfileSection>(C.get())) {
1471     if (CGP->Entries && CGP->Content)
1472       return "\"Entries\" and \"Content\" can't be used together";
1473     return {};
1474   }
1475 
1476   return {};
1477 }
1478 
1479 namespace {
1480 
1481 struct NormalizedMips64RelType {
1482   NormalizedMips64RelType(IO &)
1483       : Type(ELFYAML::ELF_REL(ELF::R_MIPS_NONE)),
1484         Type2(ELFYAML::ELF_REL(ELF::R_MIPS_NONE)),
1485         Type3(ELFYAML::ELF_REL(ELF::R_MIPS_NONE)),
1486         SpecSym(ELFYAML::ELF_REL(ELF::RSS_UNDEF)) {}
1487   NormalizedMips64RelType(IO &, ELFYAML::ELF_REL Original)
1488       : Type(Original & 0xFF), Type2(Original >> 8 & 0xFF),
1489         Type3(Original >> 16 & 0xFF), SpecSym(Original >> 24 & 0xFF) {}
1490 
1491   ELFYAML::ELF_REL denormalize(IO &) {
1492     ELFYAML::ELF_REL Res = Type | Type2 << 8 | Type3 << 16 | SpecSym << 24;
1493     return Res;
1494   }
1495 
1496   ELFYAML::ELF_REL Type;
1497   ELFYAML::ELF_REL Type2;
1498   ELFYAML::ELF_REL Type3;
1499   ELFYAML::ELF_RSS SpecSym;
1500 };
1501 
1502 } // end anonymous namespace
1503 
1504 void MappingTraits<ELFYAML::StackSizeEntry>::mapping(
1505     IO &IO, ELFYAML::StackSizeEntry &E) {
1506   assert(IO.getContext() && "The IO context is not initialized");
1507   IO.mapOptional("Address", E.Address, Hex64(0));
1508   IO.mapRequired("Size", E.Size);
1509 }
1510 
1511 void MappingTraits<ELFYAML::GnuHashHeader>::mapping(IO &IO,
1512                                                     ELFYAML::GnuHashHeader &E) {
1513   assert(IO.getContext() && "The IO context is not initialized");
1514   IO.mapOptional("NBuckets", E.NBuckets);
1515   IO.mapRequired("SymNdx", E.SymNdx);
1516   IO.mapOptional("MaskWords", E.MaskWords);
1517   IO.mapRequired("Shift2", E.Shift2);
1518 }
1519 
1520 void MappingTraits<ELFYAML::DynamicEntry>::mapping(IO &IO,
1521                                                    ELFYAML::DynamicEntry &Rel) {
1522   assert(IO.getContext() && "The IO context is not initialized");
1523 
1524   IO.mapRequired("Tag", Rel.Tag);
1525   IO.mapRequired("Value", Rel.Val);
1526 }
1527 
1528 void MappingTraits<ELFYAML::NoteEntry>::mapping(IO &IO, ELFYAML::NoteEntry &N) {
1529   assert(IO.getContext() && "The IO context is not initialized");
1530 
1531   IO.mapOptional("Name", N.Name);
1532   IO.mapOptional("Desc", N.Desc);
1533   IO.mapRequired("Type", N.Type);
1534 }
1535 
1536 void MappingTraits<ELFYAML::VerdefEntry>::mapping(IO &IO,
1537                                                   ELFYAML::VerdefEntry &E) {
1538   assert(IO.getContext() && "The IO context is not initialized");
1539 
1540   IO.mapRequired("Version", E.Version);
1541   IO.mapRequired("Flags", E.Flags);
1542   IO.mapRequired("VersionNdx", E.VersionNdx);
1543   IO.mapRequired("Hash", E.Hash);
1544   IO.mapRequired("Names", E.VerNames);
1545 }
1546 
1547 void MappingTraits<ELFYAML::VerneedEntry>::mapping(IO &IO,
1548                                                    ELFYAML::VerneedEntry &E) {
1549   assert(IO.getContext() && "The IO context is not initialized");
1550 
1551   IO.mapRequired("Version", E.Version);
1552   IO.mapRequired("File", E.File);
1553   IO.mapRequired("Entries", E.AuxV);
1554 }
1555 
1556 void MappingTraits<ELFYAML::VernauxEntry>::mapping(IO &IO,
1557                                                    ELFYAML::VernauxEntry &E) {
1558   assert(IO.getContext() && "The IO context is not initialized");
1559 
1560   IO.mapRequired("Name", E.Name);
1561   IO.mapRequired("Hash", E.Hash);
1562   IO.mapRequired("Flags", E.Flags);
1563   IO.mapRequired("Other", E.Other);
1564 }
1565 
1566 void MappingTraits<ELFYAML::Relocation>::mapping(IO &IO,
1567                                                  ELFYAML::Relocation &Rel) {
1568   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
1569   assert(Object && "The IO context is not initialized");
1570 
1571   IO.mapRequired("Offset", Rel.Offset);
1572   IO.mapOptional("Symbol", Rel.Symbol);
1573 
1574   if (Object->Header.Machine == ELFYAML::ELF_EM(ELF::EM_MIPS) &&
1575       Object->Header.Class == ELFYAML::ELF_ELFCLASS(ELF::ELFCLASS64)) {
1576     MappingNormalization<NormalizedMips64RelType, ELFYAML::ELF_REL> Key(
1577         IO, Rel.Type);
1578     IO.mapRequired("Type", Key->Type);
1579     IO.mapOptional("Type2", Key->Type2, ELFYAML::ELF_REL(ELF::R_MIPS_NONE));
1580     IO.mapOptional("Type3", Key->Type3, ELFYAML::ELF_REL(ELF::R_MIPS_NONE));
1581     IO.mapOptional("SpecSym", Key->SpecSym, ELFYAML::ELF_RSS(ELF::RSS_UNDEF));
1582   } else
1583     IO.mapRequired("Type", Rel.Type);
1584 
1585   IO.mapOptional("Addend", Rel.Addend, (int64_t)0);
1586 }
1587 
1588 void MappingTraits<ELFYAML::Object>::mapping(IO &IO, ELFYAML::Object &Object) {
1589   assert(!IO.getContext() && "The IO context is initialized already");
1590   IO.setContext(&Object);
1591   IO.mapTag("!ELF", true);
1592   IO.mapRequired("FileHeader", Object.Header);
1593   IO.mapOptional("ProgramHeaders", Object.ProgramHeaders);
1594   IO.mapOptional("Sections", Object.Chunks);
1595   IO.mapOptional("Symbols", Object.Symbols);
1596   IO.mapOptional("DynamicSymbols", Object.DynamicSymbols);
1597   IO.setContext(nullptr);
1598 }
1599 
1600 void MappingTraits<ELFYAML::LinkerOption>::mapping(IO &IO,
1601                                                    ELFYAML::LinkerOption &Opt) {
1602   assert(IO.getContext() && "The IO context is not initialized");
1603   IO.mapRequired("Name", Opt.Key);
1604   IO.mapRequired("Value", Opt.Value);
1605 }
1606 
1607 void MappingTraits<ELFYAML::CallGraphEntry>::mapping(
1608     IO &IO, ELFYAML::CallGraphEntry &E) {
1609   assert(IO.getContext() && "The IO context is not initialized");
1610   IO.mapRequired("From", E.From);
1611   IO.mapRequired("To", E.To);
1612   IO.mapRequired("Weight", E.Weight);
1613 }
1614 
1615 LLVM_YAML_STRONG_TYPEDEF(uint8_t, MIPS_AFL_REG)
1616 LLVM_YAML_STRONG_TYPEDEF(uint8_t, MIPS_ABI_FP)
1617 LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_AFL_EXT)
1618 LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_AFL_ASE)
1619 LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_AFL_FLAGS1)
1620 
1621 } // end namespace yaml
1622 
1623 } // end namespace llvm
1624