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