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ELF.h
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1 //===- llvm/BinaryFormat/ELF.h - ELF constants and structures ---*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This header contains common, non-processor-specific data structures and
11 // constants for the ELF file format.
12 //
13 // The details of the ELF32 bits in this file are largely based on the Tool
14 // Interface Standard (TIS) Executable and Linking Format (ELF) Specification
15 // Version 1.2, May 1995. The ELF64 stuff is based on ELF-64 Object File Format
16 // Version 1.5, Draft 2, May 1998 as well as OpenBSD header files.
17 //
18 //===----------------------------------------------------------------------===//
19 
20 #ifndef LLVM_BINARYFORMAT_ELF_H
21 #define LLVM_BINARYFORMAT_ELF_H
22 
23 #include <cstdint>
24 #include <cstring>
25 
26 namespace llvm {
27 namespace ELF {
28 
29 using Elf32_Addr = uint32_t; // Program address
30 using Elf32_Off = uint32_t; // File offset
31 using Elf32_Half = uint16_t;
33 using Elf32_Sword = int32_t;
34 
35 using Elf64_Addr = uint64_t;
36 using Elf64_Off = uint64_t;
37 using Elf64_Half = uint16_t;
39 using Elf64_Sword = int32_t;
40 using Elf64_Xword = uint64_t;
41 using Elf64_Sxword = int64_t;
42 
43 // Object file magic string.
44 static const char ElfMagic[] = {0x7f, 'E', 'L', 'F', '\0'};
45 
46 // e_ident size and indices.
47 enum {
48  EI_MAG0 = 0, // File identification index.
49  EI_MAG1 = 1, // File identification index.
50  EI_MAG2 = 2, // File identification index.
51  EI_MAG3 = 3, // File identification index.
52  EI_CLASS = 4, // File class.
53  EI_DATA = 5, // Data encoding.
54  EI_VERSION = 6, // File version.
55  EI_OSABI = 7, // OS/ABI identification.
56  EI_ABIVERSION = 8, // ABI version.
57  EI_PAD = 9, // Start of padding bytes.
58  EI_NIDENT = 16 // Number of bytes in e_ident.
59 };
60 
61 struct Elf32_Ehdr {
62  unsigned char e_ident[EI_NIDENT]; // ELF Identification bytes
63  Elf32_Half e_type; // Type of file (see ET_* below)
64  Elf32_Half e_machine; // Required architecture for this file (see EM_*)
65  Elf32_Word e_version; // Must be equal to 1
66  Elf32_Addr e_entry; // Address to jump to in order to start program
67  Elf32_Off e_phoff; // Program header table's file offset, in bytes
68  Elf32_Off e_shoff; // Section header table's file offset, in bytes
69  Elf32_Word e_flags; // Processor-specific flags
70  Elf32_Half e_ehsize; // Size of ELF header, in bytes
71  Elf32_Half e_phentsize; // Size of an entry in the program header table
72  Elf32_Half e_phnum; // Number of entries in the program header table
73  Elf32_Half e_shentsize; // Size of an entry in the section header table
74  Elf32_Half e_shnum; // Number of entries in the section header table
75  Elf32_Half e_shstrndx; // Sect hdr table index of sect name string table
76 
77  bool checkMagic() const {
78  return (memcmp(e_ident, ElfMagic, strlen(ElfMagic))) == 0;
79  }
80 
81  unsigned char getFileClass() const { return e_ident[EI_CLASS]; }
82  unsigned char getDataEncoding() const { return e_ident[EI_DATA]; }
83 };
84 
85 // 64-bit ELF header. Fields are the same as for ELF32, but with different
86 // types (see above).
87 struct Elf64_Ehdr {
88  unsigned char e_ident[EI_NIDENT];
102 
103  bool checkMagic() const {
104  return (memcmp(e_ident, ElfMagic, strlen(ElfMagic))) == 0;
105  }
106 
107  unsigned char getFileClass() const { return e_ident[EI_CLASS]; }
108  unsigned char getDataEncoding() const { return e_ident[EI_DATA]; }
109 };
110 
111 // File types
112 enum {
113  ET_NONE = 0, // No file type
114  ET_REL = 1, // Relocatable file
115  ET_EXEC = 2, // Executable file
116  ET_DYN = 3, // Shared object file
117  ET_CORE = 4, // Core file
118  ET_LOPROC = 0xff00, // Beginning of processor-specific codes
119  ET_HIPROC = 0xffff // Processor-specific
120 };
121 
122 // Versioning
123 enum { EV_NONE = 0, EV_CURRENT = 1 };
124 
125 // Machine architectures
126 // See current registered ELF machine architectures at:
127 // http://www.uxsglobal.com/developers/gabi/latest/ch4.eheader.html
128 enum {
129  EM_NONE = 0, // No machine
130  EM_M32 = 1, // AT&T WE 32100
131  EM_SPARC = 2, // SPARC
132  EM_386 = 3, // Intel 386
133  EM_68K = 4, // Motorola 68000
134  EM_88K = 5, // Motorola 88000
135  EM_IAMCU = 6, // Intel MCU
136  EM_860 = 7, // Intel 80860
137  EM_MIPS = 8, // MIPS R3000
138  EM_S370 = 9, // IBM System/370
139  EM_MIPS_RS3_LE = 10, // MIPS RS3000 Little-endian
140  EM_PARISC = 15, // Hewlett-Packard PA-RISC
141  EM_VPP500 = 17, // Fujitsu VPP500
142  EM_SPARC32PLUS = 18, // Enhanced instruction set SPARC
143  EM_960 = 19, // Intel 80960
144  EM_PPC = 20, // PowerPC
145  EM_PPC64 = 21, // PowerPC64
146  EM_S390 = 22, // IBM System/390
147  EM_SPU = 23, // IBM SPU/SPC
148  EM_V800 = 36, // NEC V800
149  EM_FR20 = 37, // Fujitsu FR20
150  EM_RH32 = 38, // TRW RH-32
151  EM_RCE = 39, // Motorola RCE
152  EM_ARM = 40, // ARM
153  EM_ALPHA = 41, // DEC Alpha
154  EM_SH = 42, // Hitachi SH
155  EM_SPARCV9 = 43, // SPARC V9
156  EM_TRICORE = 44, // Siemens TriCore
157  EM_ARC = 45, // Argonaut RISC Core
158  EM_H8_300 = 46, // Hitachi H8/300
159  EM_H8_300H = 47, // Hitachi H8/300H
160  EM_H8S = 48, // Hitachi H8S
161  EM_H8_500 = 49, // Hitachi H8/500
162  EM_IA_64 = 50, // Intel IA-64 processor architecture
163  EM_MIPS_X = 51, // Stanford MIPS-X
164  EM_COLDFIRE = 52, // Motorola ColdFire
165  EM_68HC12 = 53, // Motorola M68HC12
166  EM_MMA = 54, // Fujitsu MMA Multimedia Accelerator
167  EM_PCP = 55, // Siemens PCP
168  EM_NCPU = 56, // Sony nCPU embedded RISC processor
169  EM_NDR1 = 57, // Denso NDR1 microprocessor
170  EM_STARCORE = 58, // Motorola Star*Core processor
171  EM_ME16 = 59, // Toyota ME16 processor
172  EM_ST100 = 60, // STMicroelectronics ST100 processor
173  EM_TINYJ = 61, // Advanced Logic Corp. TinyJ embedded processor family
174  EM_X86_64 = 62, // AMD x86-64 architecture
175  EM_PDSP = 63, // Sony DSP Processor
176  EM_PDP10 = 64, // Digital Equipment Corp. PDP-10
177  EM_PDP11 = 65, // Digital Equipment Corp. PDP-11
178  EM_FX66 = 66, // Siemens FX66 microcontroller
179  EM_ST9PLUS = 67, // STMicroelectronics ST9+ 8/16 bit microcontroller
180  EM_ST7 = 68, // STMicroelectronics ST7 8-bit microcontroller
181  EM_68HC16 = 69, // Motorola MC68HC16 Microcontroller
182  EM_68HC11 = 70, // Motorola MC68HC11 Microcontroller
183  EM_68HC08 = 71, // Motorola MC68HC08 Microcontroller
184  EM_68HC05 = 72, // Motorola MC68HC05 Microcontroller
185  EM_SVX = 73, // Silicon Graphics SVx
186  EM_ST19 = 74, // STMicroelectronics ST19 8-bit microcontroller
187  EM_VAX = 75, // Digital VAX
188  EM_CRIS = 76, // Axis Communications 32-bit embedded processor
189  EM_JAVELIN = 77, // Infineon Technologies 32-bit embedded processor
190  EM_FIREPATH = 78, // Element 14 64-bit DSP Processor
191  EM_ZSP = 79, // LSI Logic 16-bit DSP Processor
192  EM_MMIX = 80, // Donald Knuth's educational 64-bit processor
193  EM_HUANY = 81, // Harvard University machine-independent object files
194  EM_PRISM = 82, // SiTera Prism
195  EM_AVR = 83, // Atmel AVR 8-bit microcontroller
196  EM_FR30 = 84, // Fujitsu FR30
197  EM_D10V = 85, // Mitsubishi D10V
198  EM_D30V = 86, // Mitsubishi D30V
199  EM_V850 = 87, // NEC v850
200  EM_M32R = 88, // Mitsubishi M32R
201  EM_MN10300 = 89, // Matsushita MN10300
202  EM_MN10200 = 90, // Matsushita MN10200
203  EM_PJ = 91, // picoJava
204  EM_OPENRISC = 92, // OpenRISC 32-bit embedded processor
205  EM_ARC_COMPACT = 93, // ARC International ARCompact processor (old
206  // spelling/synonym: EM_ARC_A5)
207  EM_XTENSA = 94, // Tensilica Xtensa Architecture
208  EM_VIDEOCORE = 95, // Alphamosaic VideoCore processor
209  EM_TMM_GPP = 96, // Thompson Multimedia General Purpose Processor
210  EM_NS32K = 97, // National Semiconductor 32000 series
211  EM_TPC = 98, // Tenor Network TPC processor
212  EM_SNP1K = 99, // Trebia SNP 1000 processor
213  EM_ST200 = 100, // STMicroelectronics (www.st.com) ST200
214  EM_IP2K = 101, // Ubicom IP2xxx microcontroller family
215  EM_MAX = 102, // MAX Processor
216  EM_CR = 103, // National Semiconductor CompactRISC microprocessor
217  EM_F2MC16 = 104, // Fujitsu F2MC16
218  EM_MSP430 = 105, // Texas Instruments embedded microcontroller msp430
219  EM_BLACKFIN = 106, // Analog Devices Blackfin (DSP) processor
220  EM_SE_C33 = 107, // S1C33 Family of Seiko Epson processors
221  EM_SEP = 108, // Sharp embedded microprocessor
222  EM_ARCA = 109, // Arca RISC Microprocessor
223  EM_UNICORE = 110, // Microprocessor series from PKU-Unity Ltd. and MPRC
224  // of Peking University
225  EM_EXCESS = 111, // eXcess: 16/32/64-bit configurable embedded CPU
226  EM_DXP = 112, // Icera Semiconductor Inc. Deep Execution Processor
227  EM_ALTERA_NIOS2 = 113, // Altera Nios II soft-core processor
228  EM_CRX = 114, // National Semiconductor CompactRISC CRX
229  EM_XGATE = 115, // Motorola XGATE embedded processor
230  EM_C166 = 116, // Infineon C16x/XC16x processor
231  EM_M16C = 117, // Renesas M16C series microprocessors
232  EM_DSPIC30F = 118, // Microchip Technology dsPIC30F Digital Signal
233  // Controller
234  EM_CE = 119, // Freescale Communication Engine RISC core
235  EM_M32C = 120, // Renesas M32C series microprocessors
236  EM_TSK3000 = 131, // Altium TSK3000 core
237  EM_RS08 = 132, // Freescale RS08 embedded processor
238  EM_SHARC = 133, // Analog Devices SHARC family of 32-bit DSP
239  // processors
240  EM_ECOG2 = 134, // Cyan Technology eCOG2 microprocessor
241  EM_SCORE7 = 135, // Sunplus S+core7 RISC processor
242  EM_DSP24 = 136, // New Japan Radio (NJR) 24-bit DSP Processor
243  EM_VIDEOCORE3 = 137, // Broadcom VideoCore III processor
244  EM_LATTICEMICO32 = 138, // RISC processor for Lattice FPGA architecture
245  EM_SE_C17 = 139, // Seiko Epson C17 family
246  EM_TI_C6000 = 140, // The Texas Instruments TMS320C6000 DSP family
247  EM_TI_C2000 = 141, // The Texas Instruments TMS320C2000 DSP family
248  EM_TI_C5500 = 142, // The Texas Instruments TMS320C55x DSP family
249  EM_MMDSP_PLUS = 160, // STMicroelectronics 64bit VLIW Data Signal Processor
250  EM_CYPRESS_M8C = 161, // Cypress M8C microprocessor
251  EM_R32C = 162, // Renesas R32C series microprocessors
252  EM_TRIMEDIA = 163, // NXP Semiconductors TriMedia architecture family
253  EM_HEXAGON = 164, // Qualcomm Hexagon processor
254  EM_8051 = 165, // Intel 8051 and variants
255  EM_STXP7X = 166, // STMicroelectronics STxP7x family of configurable
256  // and extensible RISC processors
257  EM_NDS32 = 167, // Andes Technology compact code size embedded RISC
258  // processor family
259  EM_ECOG1 = 168, // Cyan Technology eCOG1X family
260  EM_ECOG1X = 168, // Cyan Technology eCOG1X family
261  EM_MAXQ30 = 169, // Dallas Semiconductor MAXQ30 Core Micro-controllers
262  EM_XIMO16 = 170, // New Japan Radio (NJR) 16-bit DSP Processor
263  EM_MANIK = 171, // M2000 Reconfigurable RISC Microprocessor
264  EM_CRAYNV2 = 172, // Cray Inc. NV2 vector architecture
265  EM_RX = 173, // Renesas RX family
266  EM_METAG = 174, // Imagination Technologies META processor
267  // architecture
268  EM_MCST_ELBRUS = 175, // MCST Elbrus general purpose hardware architecture
269  EM_ECOG16 = 176, // Cyan Technology eCOG16 family
270  EM_CR16 = 177, // National Semiconductor CompactRISC CR16 16-bit
271  // microprocessor
272  EM_ETPU = 178, // Freescale Extended Time Processing Unit
273  EM_SLE9X = 179, // Infineon Technologies SLE9X core
274  EM_L10M = 180, // Intel L10M
275  EM_K10M = 181, // Intel K10M
276  EM_AARCH64 = 183, // ARM AArch64
277  EM_AVR32 = 185, // Atmel Corporation 32-bit microprocessor family
278  EM_STM8 = 186, // STMicroeletronics STM8 8-bit microcontroller
279  EM_TILE64 = 187, // Tilera TILE64 multicore architecture family
280  EM_TILEPRO = 188, // Tilera TILEPro multicore architecture family
281  EM_CUDA = 190, // NVIDIA CUDA architecture
282  EM_TILEGX = 191, // Tilera TILE-Gx multicore architecture family
283  EM_CLOUDSHIELD = 192, // CloudShield architecture family
284  EM_COREA_1ST = 193, // KIPO-KAIST Core-A 1st generation processor family
285  EM_COREA_2ND = 194, // KIPO-KAIST Core-A 2nd generation processor family
286  EM_ARC_COMPACT2 = 195, // Synopsys ARCompact V2
287  EM_OPEN8 = 196, // Open8 8-bit RISC soft processor core
288  EM_RL78 = 197, // Renesas RL78 family
289  EM_VIDEOCORE5 = 198, // Broadcom VideoCore V processor
290  EM_78KOR = 199, // Renesas 78KOR family
291  EM_56800EX = 200, // Freescale 56800EX Digital Signal Controller (DSC)
292  EM_BA1 = 201, // Beyond BA1 CPU architecture
293  EM_BA2 = 202, // Beyond BA2 CPU architecture
294  EM_XCORE = 203, // XMOS xCORE processor family
295  EM_MCHP_PIC = 204, // Microchip 8-bit PIC(r) family
296  EM_INTEL205 = 205, // Reserved by Intel
297  EM_INTEL206 = 206, // Reserved by Intel
298  EM_INTEL207 = 207, // Reserved by Intel
299  EM_INTEL208 = 208, // Reserved by Intel
300  EM_INTEL209 = 209, // Reserved by Intel
301  EM_KM32 = 210, // KM211 KM32 32-bit processor
302  EM_KMX32 = 211, // KM211 KMX32 32-bit processor
303  EM_KMX16 = 212, // KM211 KMX16 16-bit processor
304  EM_KMX8 = 213, // KM211 KMX8 8-bit processor
305  EM_KVARC = 214, // KM211 KVARC processor
306  EM_CDP = 215, // Paneve CDP architecture family
307  EM_COGE = 216, // Cognitive Smart Memory Processor
308  EM_COOL = 217, // iCelero CoolEngine
309  EM_NORC = 218, // Nanoradio Optimized RISC
310  EM_CSR_KALIMBA = 219, // CSR Kalimba architecture family
311  EM_AMDGPU = 224, // AMD GPU architecture
312  EM_RISCV = 243, // RISC-V
313  EM_LANAI = 244, // Lanai 32-bit processor
314  EM_BPF = 247, // Linux kernel bpf virtual machine
315 
316  // A request has been made to the maintainer of the official registry for
317  // such numbers for an official value for WebAssembly. As soon as one is
318  // allocated, this enum will be updated to use it.
319  EM_WEBASSEMBLY = 0x4157, // WebAssembly architecture
320 };
321 
322 // Object file classes.
323 enum {
325  ELFCLASS32 = 1, // 32-bit object file
326  ELFCLASS64 = 2 // 64-bit object file
327 };
328 
329 // Object file byte orderings.
330 enum {
331  ELFDATANONE = 0, // Invalid data encoding.
332  ELFDATA2LSB = 1, // Little-endian object file
333  ELFDATA2MSB = 2 // Big-endian object file
334 };
335 
336 // OS ABI identification.
337 enum {
338  ELFOSABI_NONE = 0, // UNIX System V ABI
339  ELFOSABI_HPUX = 1, // HP-UX operating system
340  ELFOSABI_NETBSD = 2, // NetBSD
341  ELFOSABI_GNU = 3, // GNU/Linux
342  ELFOSABI_LINUX = 3, // Historical alias for ELFOSABI_GNU.
343  ELFOSABI_HURD = 4, // GNU/Hurd
344  ELFOSABI_SOLARIS = 6, // Solaris
345  ELFOSABI_AIX = 7, // AIX
346  ELFOSABI_IRIX = 8, // IRIX
347  ELFOSABI_FREEBSD = 9, // FreeBSD
348  ELFOSABI_TRU64 = 10, // TRU64 UNIX
349  ELFOSABI_MODESTO = 11, // Novell Modesto
350  ELFOSABI_OPENBSD = 12, // OpenBSD
351  ELFOSABI_OPENVMS = 13, // OpenVMS
352  ELFOSABI_NSK = 14, // Hewlett-Packard Non-Stop Kernel
353  ELFOSABI_AROS = 15, // AROS
354  ELFOSABI_FENIXOS = 16, // FenixOS
355  ELFOSABI_CLOUDABI = 17, // Nuxi CloudABI
356  ELFOSABI_FIRST_ARCH = 64, // First architecture-specific OS ABI
357  ELFOSABI_AMDGPU_HSA = 64, // AMD HSA runtime
358  ELFOSABI_AMDGPU_PAL = 65, // AMD PAL runtime
359  ELFOSABI_AMDGPU_MESA3D = 66, // AMD GCN GPUs (GFX6+) for MESA runtime
360  ELFOSABI_ARM = 97, // ARM
361  ELFOSABI_C6000_ELFABI = 64, // Bare-metal TMS320C6000
362  ELFOSABI_C6000_LINUX = 65, // Linux TMS320C6000
363  ELFOSABI_STANDALONE = 255, // Standalone (embedded) application
364  ELFOSABI_LAST_ARCH = 255 // Last Architecture-specific OS ABI
365 };
366 
367 #define ELF_RELOC(name, value) name = value,
368 
369 // X86_64 relocations.
370 enum {
371 #include "ELFRelocs/x86_64.def"
372 };
373 
374 // i386 relocations.
375 enum {
376 #include "ELFRelocs/i386.def"
377 };
378 
379 // ELF Relocation types for PPC32
380 enum {
381 #include "ELFRelocs/PowerPC.def"
382 };
383 
384 // Specific e_flags for PPC64
385 enum {
386  // e_flags bits specifying ABI:
387  // 1 for original ABI using function descriptors,
388  // 2 for revised ABI without function descriptors,
389  // 0 for unspecified or not using any features affected by the differences.
391 };
392 
393 // Special values for the st_other field in the symbol table entry for PPC64.
394 enum {
397 };
398 static inline int64_t decodePPC64LocalEntryOffset(unsigned Other) {
399  unsigned Val = (Other & STO_PPC64_LOCAL_MASK) >> STO_PPC64_LOCAL_BIT;
400  return ((1 << Val) >> 2) << 2;
401 }
402 static inline unsigned encodePPC64LocalEntryOffset(int64_t Offset) {
403  unsigned Val =
404  (Offset >= 4 * 4 ? (Offset >= 8 * 4 ? (Offset >= 16 * 4 ? 6 : 5) : 4)
405  : (Offset >= 2 * 4 ? 3 : (Offset >= 1 * 4 ? 2 : 0)));
406  return Val << STO_PPC64_LOCAL_BIT;
407 }
408 
409 // ELF Relocation types for PPC64
410 enum {
411 #include "ELFRelocs/PowerPC64.def"
412 };
413 
414 // ELF Relocation types for AArch64
415 enum {
416 #include "ELFRelocs/AArch64.def"
417 };
418 
419 // ARM Specific e_flags
420 enum : unsigned {
421  EF_ARM_SOFT_FLOAT = 0x00000200U,
422  EF_ARM_VFP_FLOAT = 0x00000400U,
423  EF_ARM_EABI_UNKNOWN = 0x00000000U,
424  EF_ARM_EABI_VER1 = 0x01000000U,
425  EF_ARM_EABI_VER2 = 0x02000000U,
426  EF_ARM_EABI_VER3 = 0x03000000U,
427  EF_ARM_EABI_VER4 = 0x04000000U,
428  EF_ARM_EABI_VER5 = 0x05000000U,
429  EF_ARM_EABIMASK = 0xFF000000U
430 };
431 
432 // ELF Relocation types for ARM
433 enum {
434 #include "ELFRelocs/ARM.def"
435 };
436 
437 // ARC Specific e_flags
438 enum : unsigned {
439  EF_ARC_MACH_MSK = 0x000000ff,
440  EF_ARC_OSABI_MSK = 0x00000f00,
441  E_ARC_MACH_ARC600 = 0x00000002,
442  E_ARC_MACH_ARC601 = 0x00000004,
443  E_ARC_MACH_ARC700 = 0x00000003,
444  EF_ARC_CPU_ARCV2EM = 0x00000005,
445  EF_ARC_CPU_ARCV2HS = 0x00000006,
446  E_ARC_OSABI_ORIG = 0x00000000,
447  E_ARC_OSABI_V2 = 0x00000200,
448  E_ARC_OSABI_V3 = 0x00000300,
449  E_ARC_OSABI_V4 = 0x00000400,
450  EF_ARC_PIC = 0x00000100
451 };
452 
453 // ELF Relocation types for ARC
454 enum {
455 #include "ELFRelocs/ARC.def"
456 };
457 
458 // AVR specific e_flags
459 enum : unsigned {
478 };
479 
480 // ELF Relocation types for AVR
481 enum {
482 #include "ELFRelocs/AVR.def"
483 };
484 
485 // Mips Specific e_flags
486 enum : unsigned {
487  EF_MIPS_NOREORDER = 0x00000001, // Don't reorder instructions
488  EF_MIPS_PIC = 0x00000002, // Position independent code
489  EF_MIPS_CPIC = 0x00000004, // Call object with Position independent code
490  EF_MIPS_ABI2 = 0x00000020, // File uses N32 ABI
491  EF_MIPS_32BITMODE = 0x00000100, // Code compiled for a 64-bit machine
492  // in 32-bit mode
493  EF_MIPS_FP64 = 0x00000200, // Code compiled for a 32-bit machine
494  // but uses 64-bit FP registers
495  EF_MIPS_NAN2008 = 0x00000400, // Uses IEE 754-2008 NaN encoding
496 
497  // ABI flags
498  EF_MIPS_ABI_O32 = 0x00001000, // This file follows the first MIPS 32 bit ABI
499  EF_MIPS_ABI_O64 = 0x00002000, // O32 ABI extended for 64-bit architecture.
500  EF_MIPS_ABI_EABI32 = 0x00003000, // EABI in 32 bit mode.
501  EF_MIPS_ABI_EABI64 = 0x00004000, // EABI in 64 bit mode.
502  EF_MIPS_ABI = 0x0000f000, // Mask for selecting EF_MIPS_ABI_ variant.
503 
504  // MIPS machine variant
505  EF_MIPS_MACH_NONE = 0x00000000, // A standard MIPS implementation.
506  EF_MIPS_MACH_3900 = 0x00810000, // Toshiba R3900
507  EF_MIPS_MACH_4010 = 0x00820000, // LSI R4010
508  EF_MIPS_MACH_4100 = 0x00830000, // NEC VR4100
509  EF_MIPS_MACH_4650 = 0x00850000, // MIPS R4650
510  EF_MIPS_MACH_4120 = 0x00870000, // NEC VR4120
511  EF_MIPS_MACH_4111 = 0x00880000, // NEC VR4111/VR4181
512  EF_MIPS_MACH_SB1 = 0x008a0000, // Broadcom SB-1
513  EF_MIPS_MACH_OCTEON = 0x008b0000, // Cavium Networks Octeon
514  EF_MIPS_MACH_XLR = 0x008c0000, // RMI Xlr
515  EF_MIPS_MACH_OCTEON2 = 0x008d0000, // Cavium Networks Octeon2
516  EF_MIPS_MACH_OCTEON3 = 0x008e0000, // Cavium Networks Octeon3
517  EF_MIPS_MACH_5400 = 0x00910000, // NEC VR5400
518  EF_MIPS_MACH_5900 = 0x00920000, // MIPS R5900
519  EF_MIPS_MACH_5500 = 0x00980000, // NEC VR5500
520  EF_MIPS_MACH_9000 = 0x00990000, // Unknown
521  EF_MIPS_MACH_LS2E = 0x00a00000, // ST Microelectronics Loongson 2E
522  EF_MIPS_MACH_LS2F = 0x00a10000, // ST Microelectronics Loongson 2F
523  EF_MIPS_MACH_LS3A = 0x00a20000, // Loongson 3A
524  EF_MIPS_MACH = 0x00ff0000, // EF_MIPS_MACH_xxx selection mask
525 
526  // ARCH_ASE
527  EF_MIPS_MICROMIPS = 0x02000000, // microMIPS
528  EF_MIPS_ARCH_ASE_M16 = 0x04000000, // Has Mips-16 ISA extensions
529  EF_MIPS_ARCH_ASE_MDMX = 0x08000000, // Has MDMX multimedia extensions
530  EF_MIPS_ARCH_ASE = 0x0f000000, // Mask for EF_MIPS_ARCH_ASE_xxx flags
531 
532  // ARCH
533  EF_MIPS_ARCH_1 = 0x00000000, // MIPS1 instruction set
534  EF_MIPS_ARCH_2 = 0x10000000, // MIPS2 instruction set
535  EF_MIPS_ARCH_3 = 0x20000000, // MIPS3 instruction set
536  EF_MIPS_ARCH_4 = 0x30000000, // MIPS4 instruction set
537  EF_MIPS_ARCH_5 = 0x40000000, // MIPS5 instruction set
538  EF_MIPS_ARCH_32 = 0x50000000, // MIPS32 instruction set per linux not elf.h
539  EF_MIPS_ARCH_64 = 0x60000000, // MIPS64 instruction set per linux not elf.h
540  EF_MIPS_ARCH_32R2 = 0x70000000, // mips32r2, mips32r3, mips32r5
541  EF_MIPS_ARCH_64R2 = 0x80000000, // mips64r2, mips64r3, mips64r5
542  EF_MIPS_ARCH_32R6 = 0x90000000, // mips32r6
543  EF_MIPS_ARCH_64R6 = 0xa0000000, // mips64r6
544  EF_MIPS_ARCH = 0xf0000000 // Mask for applying EF_MIPS_ARCH_ variant
545 };
546 
547 // ELF Relocation types for Mips
548 enum {
549 #include "ELFRelocs/Mips.def"
550 };
551 
552 // Special values for the st_other field in the symbol table entry for MIPS.
553 enum {
554  STO_MIPS_OPTIONAL = 0x04, // Symbol whose definition is optional
555  STO_MIPS_PLT = 0x08, // PLT entry related dynamic table record
556  STO_MIPS_PIC = 0x20, // PIC func in an object mixes PIC/non-PIC
557  STO_MIPS_MICROMIPS = 0x80, // MIPS Specific ISA for MicroMips
558  STO_MIPS_MIPS16 = 0xf0 // MIPS Specific ISA for Mips16
559 };
560 
561 // .MIPS.options section descriptor kinds
562 enum {
563  ODK_NULL = 0, // Undefined
564  ODK_REGINFO = 1, // Register usage information
565  ODK_EXCEPTIONS = 2, // Exception processing options
566  ODK_PAD = 3, // Section padding options
567  ODK_HWPATCH = 4, // Hardware patches applied
568  ODK_FILL = 5, // Linker fill value
569  ODK_TAGS = 6, // Space for tool identification
570  ODK_HWAND = 7, // Hardware AND patches applied
571  ODK_HWOR = 8, // Hardware OR patches applied
572  ODK_GP_GROUP = 9, // GP group to use for text/data sections
573  ODK_IDENT = 10, // ID information
574  ODK_PAGESIZE = 11 // Page size information
575 };
576 
577 // Hexagon-specific e_flags
578 enum {
579  // Object processor version flags, bits[11:0]
580  EF_HEXAGON_MACH_V2 = 0x00000001, // Hexagon V2
581  EF_HEXAGON_MACH_V3 = 0x00000002, // Hexagon V3
582  EF_HEXAGON_MACH_V4 = 0x00000003, // Hexagon V4
583  EF_HEXAGON_MACH_V5 = 0x00000004, // Hexagon V5
584  EF_HEXAGON_MACH_V55 = 0x00000005, // Hexagon V55
585  EF_HEXAGON_MACH_V60 = 0x00000060, // Hexagon V60
586  EF_HEXAGON_MACH_V62 = 0x00000062, // Hexagon V62
587  EF_HEXAGON_MACH_V65 = 0x00000065, // Hexagon V65
588 
589  // Highest ISA version flags
590  EF_HEXAGON_ISA_MACH = 0x00000000, // Same as specified in bits[11:0]
591  // of e_flags
592  EF_HEXAGON_ISA_V2 = 0x00000010, // Hexagon V2 ISA
593  EF_HEXAGON_ISA_V3 = 0x00000020, // Hexagon V3 ISA
594  EF_HEXAGON_ISA_V4 = 0x00000030, // Hexagon V4 ISA
595  EF_HEXAGON_ISA_V5 = 0x00000040, // Hexagon V5 ISA
596  EF_HEXAGON_ISA_V55 = 0x00000050, // Hexagon V55 ISA
597  EF_HEXAGON_ISA_V60 = 0x00000060, // Hexagon V60 ISA
598  EF_HEXAGON_ISA_V62 = 0x00000062, // Hexagon V62 ISA
599  EF_HEXAGON_ISA_V65 = 0x00000065, // Hexagon V65 ISA
600 };
601 
602 // Hexagon-specific section indexes for common small data
603 enum {
604  SHN_HEXAGON_SCOMMON = 0xff00, // Other access sizes
605  SHN_HEXAGON_SCOMMON_1 = 0xff01, // Byte-sized access
606  SHN_HEXAGON_SCOMMON_2 = 0xff02, // Half-word-sized access
607  SHN_HEXAGON_SCOMMON_4 = 0xff03, // Word-sized access
608  SHN_HEXAGON_SCOMMON_8 = 0xff04 // Double-word-size access
609 };
610 
611 // ELF Relocation types for Hexagon
612 enum {
613 #include "ELFRelocs/Hexagon.def"
614 };
615 
616 // ELF Relocation type for Lanai.
617 enum {
618 #include "ELFRelocs/Lanai.def"
619 };
620 
621 // RISCV Specific e_flags
622 enum : unsigned {
623  EF_RISCV_RVC = 0x0001,
629  EF_RISCV_RVE = 0x0008
630 };
631 
632 // ELF Relocation types for RISC-V
633 enum {
634 #include "ELFRelocs/RISCV.def"
635 };
636 
637 // ELF Relocation types for S390/zSeries
638 enum {
639 #include "ELFRelocs/SystemZ.def"
640 };
641 
642 // ELF Relocation type for Sparc.
643 enum {
644 #include "ELFRelocs/Sparc.def"
645 };
646 
647 // ELF Relocation types for WebAssembly
648 enum {
649 #include "ELFRelocs/WebAssembly.def"
650 };
651 
652 // AMDGPU specific e_flags.
653 enum : unsigned {
654  // AMDGPU machine architectures.
655  EF_AMDGPU_ARCH_NONE = 0x00000000, // None/unknown.
656  EF_AMDGPU_ARCH_R600 = 0x00000001, // AMD HD2XXX-HD6XXX GPUs.
657  EF_AMDGPU_ARCH_GCN = 0x00000002, // AMD GCN GFX6+ GPUs.
658  EF_AMDGPU_ARCH = 0x0000000f // EF_AMDGPU_ARCH_XXX selection mask.
659 };
660 
661 // ELF Relocation types for AMDGPU
662 enum {
663 #include "ELFRelocs/AMDGPU.def"
664 };
665 
666 // ELF Relocation types for BPF
667 enum {
668 #include "ELFRelocs/BPF.def"
669 };
670 
671 #undef ELF_RELOC
672 
673 // Section header.
674 struct Elf32_Shdr {
675  Elf32_Word sh_name; // Section name (index into string table)
676  Elf32_Word sh_type; // Section type (SHT_*)
677  Elf32_Word sh_flags; // Section flags (SHF_*)
678  Elf32_Addr sh_addr; // Address where section is to be loaded
679  Elf32_Off sh_offset; // File offset of section data, in bytes
680  Elf32_Word sh_size; // Size of section, in bytes
681  Elf32_Word sh_link; // Section type-specific header table index link
682  Elf32_Word sh_info; // Section type-specific extra information
683  Elf32_Word sh_addralign; // Section address alignment
684  Elf32_Word sh_entsize; // Size of records contained within the section
685 };
686 
687 // Section header for ELF64 - same fields as ELF32, different types.
688 struct Elf64_Shdr {
699 };
700 
701 // Special section indices.
702 enum {
703  SHN_UNDEF = 0, // Undefined, missing, irrelevant, or meaningless
704  SHN_LORESERVE = 0xff00, // Lowest reserved index
705  SHN_LOPROC = 0xff00, // Lowest processor-specific index
706  SHN_HIPROC = 0xff1f, // Highest processor-specific index
707  SHN_LOOS = 0xff20, // Lowest operating system-specific index
708  SHN_HIOS = 0xff3f, // Highest operating system-specific index
709  SHN_ABS = 0xfff1, // Symbol has absolute value; does not need relocation
710  SHN_COMMON = 0xfff2, // FORTRAN COMMON or C external global variables
711  SHN_XINDEX = 0xffff, // Mark that the index is >= SHN_LORESERVE
712  SHN_HIRESERVE = 0xffff // Highest reserved index
713 };
714 
715 // Section types.
716 enum : unsigned {
717  SHT_NULL = 0, // No associated section (inactive entry).
718  SHT_PROGBITS = 1, // Program-defined contents.
719  SHT_SYMTAB = 2, // Symbol table.
720  SHT_STRTAB = 3, // String table.
721  SHT_RELA = 4, // Relocation entries; explicit addends.
722  SHT_HASH = 5, // Symbol hash table.
723  SHT_DYNAMIC = 6, // Information for dynamic linking.
724  SHT_NOTE = 7, // Information about the file.
725  SHT_NOBITS = 8, // Data occupies no space in the file.
726  SHT_REL = 9, // Relocation entries; no explicit addends.
727  SHT_SHLIB = 10, // Reserved.
728  SHT_DYNSYM = 11, // Symbol table.
729  SHT_INIT_ARRAY = 14, // Pointers to initialization functions.
730  SHT_FINI_ARRAY = 15, // Pointers to termination functions.
731  SHT_PREINIT_ARRAY = 16, // Pointers to pre-init functions.
732  SHT_GROUP = 17, // Section group.
733  SHT_SYMTAB_SHNDX = 18, // Indices for SHN_XINDEX entries.
734  SHT_LOOS = 0x60000000, // Lowest operating system-specific type.
735  // Android packed relocation section types.
736  // https://android.googlesource.com/platform/bionic/+/6f12bfece5dcc01325e0abba56a46b1bcf991c69/tools/relocation_packer/src/elf_file.cc#37
737  SHT_ANDROID_REL = 0x60000001,
738  SHT_ANDROID_RELA = 0x60000002,
739  SHT_LLVM_ODRTAB = 0x6fff4c00, // LLVM ODR table.
740  SHT_GNU_ATTRIBUTES = 0x6ffffff5, // Object attributes.
741  SHT_GNU_HASH = 0x6ffffff6, // GNU-style hash table.
742  SHT_GNU_verdef = 0x6ffffffd, // GNU version definitions.
743  SHT_GNU_verneed = 0x6ffffffe, // GNU version references.
744  SHT_GNU_versym = 0x6fffffff, // GNU symbol versions table.
745  SHT_HIOS = 0x6fffffff, // Highest operating system-specific type.
746  SHT_LOPROC = 0x70000000, // Lowest processor arch-specific type.
747  // Fixme: All this is duplicated in MCSectionELF. Why??
748  // Exception Index table
749  SHT_ARM_EXIDX = 0x70000001U,
750  // BPABI DLL dynamic linking pre-emption map
751  SHT_ARM_PREEMPTMAP = 0x70000002U,
752  // Object file compatibility attributes
753  SHT_ARM_ATTRIBUTES = 0x70000003U,
754  SHT_ARM_DEBUGOVERLAY = 0x70000004U,
755  SHT_ARM_OVERLAYSECTION = 0x70000005U,
756  SHT_HEX_ORDERED = 0x70000000, // Link editor is to sort the entries in
757  // this section based on their sizes
758  SHT_X86_64_UNWIND = 0x70000001, // Unwind information
759 
760  SHT_MIPS_REGINFO = 0x70000006, // Register usage information
761  SHT_MIPS_OPTIONS = 0x7000000d, // General options
762  SHT_MIPS_DWARF = 0x7000001e, // DWARF debugging section.
763  SHT_MIPS_ABIFLAGS = 0x7000002a, // ABI information.
764 
765  SHT_HIPROC = 0x7fffffff, // Highest processor arch-specific type.
766  SHT_LOUSER = 0x80000000, // Lowest type reserved for applications.
767  SHT_HIUSER = 0xffffffff // Highest type reserved for applications.
768 };
769 
770 // Section flags.
771 enum : unsigned {
772  // Section data should be writable during execution.
773  SHF_WRITE = 0x1,
774 
775  // Section occupies memory during program execution.
776  SHF_ALLOC = 0x2,
777 
778  // Section contains executable machine instructions.
780 
781  // The data in this section may be merged.
782  SHF_MERGE = 0x10,
783 
784  // The data in this section is null-terminated strings.
785  SHF_STRINGS = 0x20,
786 
787  // A field in this section holds a section header table index.
788  SHF_INFO_LINK = 0x40U,
789 
790  // Adds special ordering requirements for link editors.
791  SHF_LINK_ORDER = 0x80U,
792 
793  // This section requires special OS-specific processing to avoid incorrect
794  // behavior.
796 
797  // This section is a member of a section group.
798  SHF_GROUP = 0x200U,
799 
800  // This section holds Thread-Local Storage.
801  SHF_TLS = 0x400U,
802 
803  // Identifies a section containing compressed data.
804  SHF_COMPRESSED = 0x800U,
805 
806  // This section is excluded from the final executable or shared library.
807  SHF_EXCLUDE = 0x80000000U,
808 
809  // Start of target-specific flags.
810 
811  SHF_MASKOS = 0x0ff00000,
812 
813  // Bits indicating processor-specific flags.
814  SHF_MASKPROC = 0xf0000000,
815 
816  /// All sections with the "d" flag are grouped together by the linker to form
817  /// the data section and the dp register is set to the start of the section by
818  /// the boot code.
819  XCORE_SHF_DP_SECTION = 0x10000000,
820 
821  /// All sections with the "c" flag are grouped together by the linker to form
822  /// the constant pool and the cp register is set to the start of the constant
823  /// pool by the boot code.
824  XCORE_SHF_CP_SECTION = 0x20000000,
825 
826  // If an object file section does not have this flag set, then it may not hold
827  // more than 2GB and can be freely referred to in objects using smaller code
828  // models. Otherwise, only objects using larger code models can refer to them.
829  // For example, a medium code model object can refer to data in a section that
830  // sets this flag besides being able to refer to data in a section that does
831  // not set it; likewise, a small code model object can refer only to code in a
832  // section that does not set this flag.
833  SHF_X86_64_LARGE = 0x10000000,
834 
835  // All sections with the GPREL flag are grouped into a global data area
836  // for faster accesses
837  SHF_HEX_GPREL = 0x10000000,
838 
839  // Section contains text/data which may be replicated in other sections.
840  // Linker must retain only one copy.
841  SHF_MIPS_NODUPES = 0x01000000,
842 
843  // Linker must generate implicit hidden weak names.
844  SHF_MIPS_NAMES = 0x02000000,
845 
846  // Section data local to process.
847  SHF_MIPS_LOCAL = 0x04000000,
848 
849  // Do not strip this section.
850  SHF_MIPS_NOSTRIP = 0x08000000,
851 
852  // Section must be part of global data area.
853  SHF_MIPS_GPREL = 0x10000000,
854 
855  // This section should be merged.
856  SHF_MIPS_MERGE = 0x20000000,
857 
858  // Address size to be inferred from section entry size.
859  SHF_MIPS_ADDR = 0x40000000,
860 
861  // Section data is string data by default.
862  SHF_MIPS_STRING = 0x80000000,
863 
864  // Make code section unreadable when in execute-only mode
865  SHF_ARM_PURECODE = 0x20000000
866 };
867 
868 // Section Group Flags
869 enum : unsigned {
870  GRP_COMDAT = 0x1,
871  GRP_MASKOS = 0x0ff00000,
872  GRP_MASKPROC = 0xf0000000
873 };
874 
875 // Symbol table entries for ELF32.
876 struct Elf32_Sym {
877  Elf32_Word st_name; // Symbol name (index into string table)
878  Elf32_Addr st_value; // Value or address associated with the symbol
879  Elf32_Word st_size; // Size of the symbol
880  unsigned char st_info; // Symbol's type and binding attributes
881  unsigned char st_other; // Must be zero; reserved
882  Elf32_Half st_shndx; // Which section (header table index) it's defined in
883 
884  // These accessors and mutators correspond to the ELF32_ST_BIND,
885  // ELF32_ST_TYPE, and ELF32_ST_INFO macros defined in the ELF specification:
886  unsigned char getBinding() const { return st_info >> 4; }
887  unsigned char getType() const { return st_info & 0x0f; }
888  void setBinding(unsigned char b) { setBindingAndType(b, getType()); }
889  void setType(unsigned char t) { setBindingAndType(getBinding(), t); }
890  void setBindingAndType(unsigned char b, unsigned char t) {
891  st_info = (b << 4) + (t & 0x0f);
892  }
893 };
894 
895 // Symbol table entries for ELF64.
896 struct Elf64_Sym {
897  Elf64_Word st_name; // Symbol name (index into string table)
898  unsigned char st_info; // Symbol's type and binding attributes
899  unsigned char st_other; // Must be zero; reserved
900  Elf64_Half st_shndx; // Which section (header tbl index) it's defined in
901  Elf64_Addr st_value; // Value or address associated with the symbol
902  Elf64_Xword st_size; // Size of the symbol
903 
904  // These accessors and mutators are identical to those defined for ELF32
905  // symbol table entries.
906  unsigned char getBinding() const { return st_info >> 4; }
907  unsigned char getType() const { return st_info & 0x0f; }
908  void setBinding(unsigned char b) { setBindingAndType(b, getType()); }
909  void setType(unsigned char t) { setBindingAndType(getBinding(), t); }
910  void setBindingAndType(unsigned char b, unsigned char t) {
911  st_info = (b << 4) + (t & 0x0f);
912  }
913 };
914 
915 // The size (in bytes) of symbol table entries.
916 enum {
917  SYMENTRY_SIZE32 = 16, // 32-bit symbol entry size
918  SYMENTRY_SIZE64 = 24 // 64-bit symbol entry size.
919 };
920 
921 // Symbol bindings.
922 enum {
923  STB_LOCAL = 0, // Local symbol, not visible outside obj file containing def
924  STB_GLOBAL = 1, // Global symbol, visible to all object files being combined
925  STB_WEAK = 2, // Weak symbol, like global but lower-precedence
927  STB_LOOS = 10, // Lowest operating system-specific binding type
928  STB_HIOS = 12, // Highest operating system-specific binding type
929  STB_LOPROC = 13, // Lowest processor-specific binding type
930  STB_HIPROC = 15 // Highest processor-specific binding type
931 };
932 
933 // Symbol types.
934 enum {
935  STT_NOTYPE = 0, // Symbol's type is not specified
936  STT_OBJECT = 1, // Symbol is a data object (variable, array, etc.)
937  STT_FUNC = 2, // Symbol is executable code (function, etc.)
938  STT_SECTION = 3, // Symbol refers to a section
939  STT_FILE = 4, // Local, absolute symbol that refers to a file
940  STT_COMMON = 5, // An uninitialized common block
941  STT_TLS = 6, // Thread local data object
942  STT_GNU_IFUNC = 10, // GNU indirect function
943  STT_LOOS = 10, // Lowest operating system-specific symbol type
944  STT_HIOS = 12, // Highest operating system-specific symbol type
945  STT_LOPROC = 13, // Lowest processor-specific symbol type
946  STT_HIPROC = 15, // Highest processor-specific symbol type
947 
948  // AMDGPU symbol types
950 };
951 
952 enum {
953  STV_DEFAULT = 0, // Visibility is specified by binding type
954  STV_INTERNAL = 1, // Defined by processor supplements
955  STV_HIDDEN = 2, // Not visible to other components
956  STV_PROTECTED = 3 // Visible in other components but not preemptable
957 };
958 
959 // Symbol number.
960 enum { STN_UNDEF = 0 };
961 
962 // Special relocation symbols used in the MIPS64 ELF relocation entries
963 enum {
964  RSS_UNDEF = 0, // None
965  RSS_GP = 1, // Value of gp
966  RSS_GP0 = 2, // Value of gp used to create object being relocated
967  RSS_LOC = 3 // Address of location being relocated
968 };
969 
970 // Relocation entry, without explicit addend.
971 struct Elf32_Rel {
972  Elf32_Addr r_offset; // Location (file byte offset, or program virtual addr)
973  Elf32_Word r_info; // Symbol table index and type of relocation to apply
974 
975  // These accessors and mutators correspond to the ELF32_R_SYM, ELF32_R_TYPE,
976  // and ELF32_R_INFO macros defined in the ELF specification:
977  Elf32_Word getSymbol() const { return (r_info >> 8); }
978  unsigned char getType() const { return (unsigned char)(r_info & 0x0ff); }
979  void setSymbol(Elf32_Word s) { setSymbolAndType(s, getType()); }
980  void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); }
981  void setSymbolAndType(Elf32_Word s, unsigned char t) {
982  r_info = (s << 8) + t;
983  }
984 };
985 
986 // Relocation entry with explicit addend.
987 struct Elf32_Rela {
988  Elf32_Addr r_offset; // Location (file byte offset, or program virtual addr)
989  Elf32_Word r_info; // Symbol table index and type of relocation to apply
990  Elf32_Sword r_addend; // Compute value for relocatable field by adding this
991 
992  // These accessors and mutators correspond to the ELF32_R_SYM, ELF32_R_TYPE,
993  // and ELF32_R_INFO macros defined in the ELF specification:
994  Elf32_Word getSymbol() const { return (r_info >> 8); }
995  unsigned char getType() const { return (unsigned char)(r_info & 0x0ff); }
996  void setSymbol(Elf32_Word s) { setSymbolAndType(s, getType()); }
997  void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); }
998  void setSymbolAndType(Elf32_Word s, unsigned char t) {
999  r_info = (s << 8) + t;
1000  }
1001 };
1002 
1003 // Relocation entry, without explicit addend.
1004 struct Elf64_Rel {
1005  Elf64_Addr r_offset; // Location (file byte offset, or program virtual addr).
1006  Elf64_Xword r_info; // Symbol table index and type of relocation to apply.
1007 
1008  // These accessors and mutators correspond to the ELF64_R_SYM, ELF64_R_TYPE,
1009  // and ELF64_R_INFO macros defined in the ELF specification:
1010  Elf64_Word getSymbol() const { return (r_info >> 32); }
1011  Elf64_Word getType() const { return (Elf64_Word)(r_info & 0xffffffffL); }
1012  void setSymbol(Elf64_Word s) { setSymbolAndType(s, getType()); }
1013  void setType(Elf64_Word t) { setSymbolAndType(getSymbol(), t); }
1015  r_info = ((Elf64_Xword)s << 32) + (t & 0xffffffffL);
1016  }
1017 };
1018 
1019 // Relocation entry with explicit addend.
1020 struct Elf64_Rela {
1021  Elf64_Addr r_offset; // Location (file byte offset, or program virtual addr).
1022  Elf64_Xword r_info; // Symbol table index and type of relocation to apply.
1023  Elf64_Sxword r_addend; // Compute value for relocatable field by adding this.
1024 
1025  // These accessors and mutators correspond to the ELF64_R_SYM, ELF64_R_TYPE,
1026  // and ELF64_R_INFO macros defined in the ELF specification:
1027  Elf64_Word getSymbol() const { return (r_info >> 32); }
1028  Elf64_Word getType() const { return (Elf64_Word)(r_info & 0xffffffffL); }
1029  void setSymbol(Elf64_Word s) { setSymbolAndType(s, getType()); }
1030  void setType(Elf64_Word t) { setSymbolAndType(getSymbol(), t); }
1032  r_info = ((Elf64_Xword)s << 32) + (t & 0xffffffffL);
1033  }
1034 };
1035 
1036 // Program header for ELF32.
1037 struct Elf32_Phdr {
1038  Elf32_Word p_type; // Type of segment
1039  Elf32_Off p_offset; // File offset where segment is located, in bytes
1040  Elf32_Addr p_vaddr; // Virtual address of beginning of segment
1041  Elf32_Addr p_paddr; // Physical address of beginning of segment (OS-specific)
1042  Elf32_Word p_filesz; // Num. of bytes in file image of segment (may be zero)
1043  Elf32_Word p_memsz; // Num. of bytes in mem image of segment (may be zero)
1044  Elf32_Word p_flags; // Segment flags
1045  Elf32_Word p_align; // Segment alignment constraint
1046 };
1047 
1048 // Program header for ELF64.
1049 struct Elf64_Phdr {
1050  Elf64_Word p_type; // Type of segment
1051  Elf64_Word p_flags; // Segment flags
1052  Elf64_Off p_offset; // File offset where segment is located, in bytes
1053  Elf64_Addr p_vaddr; // Virtual address of beginning of segment
1054  Elf64_Addr p_paddr; // Physical addr of beginning of segment (OS-specific)
1055  Elf64_Xword p_filesz; // Num. of bytes in file image of segment (may be zero)
1056  Elf64_Xword p_memsz; // Num. of bytes in mem image of segment (may be zero)
1057  Elf64_Xword p_align; // Segment alignment constraint
1058 };
1059 
1060 // Segment types.
1061 enum {
1062  PT_NULL = 0, // Unused segment.
1063  PT_LOAD = 1, // Loadable segment.
1064  PT_DYNAMIC = 2, // Dynamic linking information.
1065  PT_INTERP = 3, // Interpreter pathname.
1066  PT_NOTE = 4, // Auxiliary information.
1067  PT_SHLIB = 5, // Reserved.
1068  PT_PHDR = 6, // The program header table itself.
1069  PT_TLS = 7, // The thread-local storage template.
1070  PT_LOOS = 0x60000000, // Lowest operating system-specific pt entry type.
1071  PT_HIOS = 0x6fffffff, // Highest operating system-specific pt entry type.
1072  PT_LOPROC = 0x70000000, // Lowest processor-specific program hdr entry type.
1073  PT_HIPROC = 0x7fffffff, // Highest processor-specific program hdr entry type.
1074 
1075  // x86-64 program header types.
1076  // These all contain stack unwind tables.
1077  PT_GNU_EH_FRAME = 0x6474e550,
1078  PT_SUNW_EH_FRAME = 0x6474e550,
1079  PT_SUNW_UNWIND = 0x6464e550,
1080 
1081  PT_GNU_STACK = 0x6474e551, // Indicates stack executability.
1082  PT_GNU_RELRO = 0x6474e552, // Read-only after relocation.
1083 
1084  PT_OPENBSD_RANDOMIZE = 0x65a3dbe6, // Fill with random data.
1085  PT_OPENBSD_WXNEEDED = 0x65a3dbe7, // Program does W^X violations.
1086  PT_OPENBSD_BOOTDATA = 0x65a41be6, // Section for boot arguments.
1087 
1088  // ARM program header types.
1089  PT_ARM_ARCHEXT = 0x70000000, // Platform architecture compatibility info
1090  // These all contain stack unwind tables.
1091  PT_ARM_EXIDX = 0x70000001,
1092  PT_ARM_UNWIND = 0x70000001,
1093 
1094  // MIPS program header types.
1095  PT_MIPS_REGINFO = 0x70000000, // Register usage information.
1096  PT_MIPS_RTPROC = 0x70000001, // Runtime procedure table.
1097  PT_MIPS_OPTIONS = 0x70000002, // Options segment.
1098  PT_MIPS_ABIFLAGS = 0x70000003, // Abiflags segment.
1099 
1100  // WebAssembly program header types.
1101  PT_WEBASSEMBLY_FUNCTIONS = PT_LOPROC + 0, // Function definitions.
1102 };
1103 
1104 // Segment flag bits.
1105 enum : unsigned {
1106  PF_X = 1, // Execute
1107  PF_W = 2, // Write
1108  PF_R = 4, // Read
1109  PF_MASKOS = 0x0ff00000, // Bits for operating system-specific semantics.
1110  PF_MASKPROC = 0xf0000000 // Bits for processor-specific semantics.
1111 };
1112 
1113 // Dynamic table entry for ELF32.
1114 struct Elf32_Dyn {
1115  Elf32_Sword d_tag; // Type of dynamic table entry.
1116  union {
1117  Elf32_Word d_val; // Integer value of entry.
1118  Elf32_Addr d_ptr; // Pointer value of entry.
1119  } d_un;
1120 };
1121 
1122 // Dynamic table entry for ELF64.
1123 struct Elf64_Dyn {
1124  Elf64_Sxword d_tag; // Type of dynamic table entry.
1125  union {
1126  Elf64_Xword d_val; // Integer value of entry.
1127  Elf64_Addr d_ptr; // Pointer value of entry.
1128  } d_un;
1129 };
1130 
1131 // Dynamic table entry tags.
1132 enum {
1133  DT_NULL = 0, // Marks end of dynamic array.
1134  DT_NEEDED = 1, // String table offset of needed library.
1135  DT_PLTRELSZ = 2, // Size of relocation entries in PLT.
1136  DT_PLTGOT = 3, // Address associated with linkage table.
1137  DT_HASH = 4, // Address of symbolic hash table.
1138  DT_STRTAB = 5, // Address of dynamic string table.
1139  DT_SYMTAB = 6, // Address of dynamic symbol table.
1140  DT_RELA = 7, // Address of relocation table (Rela entries).
1141  DT_RELASZ = 8, // Size of Rela relocation table.
1142  DT_RELAENT = 9, // Size of a Rela relocation entry.
1143  DT_STRSZ = 10, // Total size of the string table.
1144  DT_SYMENT = 11, // Size of a symbol table entry.
1145  DT_INIT = 12, // Address of initialization function.
1146  DT_FINI = 13, // Address of termination function.
1147  DT_SONAME = 14, // String table offset of a shared objects name.
1148  DT_RPATH = 15, // String table offset of library search path.
1149  DT_SYMBOLIC = 16, // Changes symbol resolution algorithm.
1150  DT_REL = 17, // Address of relocation table (Rel entries).
1151  DT_RELSZ = 18, // Size of Rel relocation table.
1152  DT_RELENT = 19, // Size of a Rel relocation entry.
1153  DT_PLTREL = 20, // Type of relocation entry used for linking.
1154  DT_DEBUG = 21, // Reserved for debugger.
1155  DT_TEXTREL = 22, // Relocations exist for non-writable segments.
1156  DT_JMPREL = 23, // Address of relocations associated with PLT.
1157  DT_BIND_NOW = 24, // Process all relocations before execution.
1158  DT_INIT_ARRAY = 25, // Pointer to array of initialization functions.
1159  DT_FINI_ARRAY = 26, // Pointer to array of termination functions.
1160  DT_INIT_ARRAYSZ = 27, // Size of DT_INIT_ARRAY.
1161  DT_FINI_ARRAYSZ = 28, // Size of DT_FINI_ARRAY.
1162  DT_RUNPATH = 29, // String table offset of lib search path.
1163  DT_FLAGS = 30, // Flags.
1164  DT_ENCODING = 32, // Values from here to DT_LOOS follow the rules
1165  // for the interpretation of the d_un union.
1166 
1167  DT_PREINIT_ARRAY = 32, // Pointer to array of preinit functions.
1168  DT_PREINIT_ARRAYSZ = 33, // Size of the DT_PREINIT_ARRAY array.
1169 
1170  DT_LOOS = 0x60000000, // Start of environment specific tags.
1171  DT_HIOS = 0x6FFFFFFF, // End of environment specific tags.
1172  DT_LOPROC = 0x70000000, // Start of processor specific tags.
1173  DT_HIPROC = 0x7FFFFFFF, // End of processor specific tags.
1174 
1175  // Android packed relocation section tags.
1176  // https://android.googlesource.com/platform/bionic/+/6f12bfece5dcc01325e0abba56a46b1bcf991c69/tools/relocation_packer/src/elf_file.cc#31
1177  DT_ANDROID_REL = 0x6000000F,
1178  DT_ANDROID_RELSZ = 0x60000010,
1179  DT_ANDROID_RELA = 0x60000011,
1180  DT_ANDROID_RELASZ = 0x60000012,
1181 
1182  DT_GNU_HASH = 0x6FFFFEF5, // Reference to the GNU hash table.
1184  0x6FFFFEF6, // Location of PLT entry for TLS descriptor resolver calls.
1185  DT_TLSDESC_GOT = 0x6FFFFEF7, // Location of GOT entry used by TLS descriptor
1186  // resolver PLT entry.
1187  DT_RELACOUNT = 0x6FFFFFF9, // ELF32_Rela count.
1188  DT_RELCOUNT = 0x6FFFFFFA, // ELF32_Rel count.
1189 
1190  DT_FLAGS_1 = 0X6FFFFFFB, // Flags_1.
1191  DT_VERSYM = 0x6FFFFFF0, // The address of .gnu.version section.
1192  DT_VERDEF = 0X6FFFFFFC, // The address of the version definition table.
1193  DT_VERDEFNUM = 0X6FFFFFFD, // The number of entries in DT_VERDEF.
1194  DT_VERNEED = 0X6FFFFFFE, // The address of the version Dependency table.
1195  DT_VERNEEDNUM = 0X6FFFFFFF, // The number of entries in DT_VERNEED.
1196 
1197  // Hexagon specific dynamic table entries
1198  DT_HEXAGON_SYMSZ = 0x70000000,
1199  DT_HEXAGON_VER = 0x70000001,
1200  DT_HEXAGON_PLT = 0x70000002,
1201 
1202  // Mips specific dynamic table entry tags.
1203  DT_MIPS_RLD_VERSION = 0x70000001, // 32 bit version number for runtime
1204  // linker interface.
1205  DT_MIPS_TIME_STAMP = 0x70000002, // Time stamp.
1206  DT_MIPS_ICHECKSUM = 0x70000003, // Checksum of external strings
1207  // and common sizes.
1208  DT_MIPS_IVERSION = 0x70000004, // Index of version string
1209  // in string table.
1210  DT_MIPS_FLAGS = 0x70000005, // 32 bits of flags.
1211  DT_MIPS_BASE_ADDRESS = 0x70000006, // Base address of the segment.
1212  DT_MIPS_MSYM = 0x70000007, // Address of .msym section.
1213  DT_MIPS_CONFLICT = 0x70000008, // Address of .conflict section.
1214  DT_MIPS_LIBLIST = 0x70000009, // Address of .liblist section.
1215  DT_MIPS_LOCAL_GOTNO = 0x7000000a, // Number of local global offset
1216  // table entries.
1217  DT_MIPS_CONFLICTNO = 0x7000000b, // Number of entries
1218  // in the .conflict section.
1219  DT_MIPS_LIBLISTNO = 0x70000010, // Number of entries
1220  // in the .liblist section.
1221  DT_MIPS_SYMTABNO = 0x70000011, // Number of entries
1222  // in the .dynsym section.
1223  DT_MIPS_UNREFEXTNO = 0x70000012, // Index of first external dynamic symbol
1224  // not referenced locally.
1225  DT_MIPS_GOTSYM = 0x70000013, // Index of first dynamic symbol
1226  // in global offset table.
1227  DT_MIPS_HIPAGENO = 0x70000014, // Number of page table entries
1228  // in global offset table.
1229  DT_MIPS_RLD_MAP = 0x70000016, // Address of run time loader map,
1230  // used for debugging.
1231  DT_MIPS_DELTA_CLASS = 0x70000017, // Delta C++ class definition.
1232  DT_MIPS_DELTA_CLASS_NO = 0x70000018, // Number of entries
1233  // in DT_MIPS_DELTA_CLASS.
1234  DT_MIPS_DELTA_INSTANCE = 0x70000019, // Delta C++ class instances.
1235  DT_MIPS_DELTA_INSTANCE_NO = 0x7000001A, // Number of entries
1236  // in DT_MIPS_DELTA_INSTANCE.
1237  DT_MIPS_DELTA_RELOC = 0x7000001B, // Delta relocations.
1238  DT_MIPS_DELTA_RELOC_NO = 0x7000001C, // Number of entries
1239  // in DT_MIPS_DELTA_RELOC.
1240  DT_MIPS_DELTA_SYM = 0x7000001D, // Delta symbols that Delta
1241  // relocations refer to.
1242  DT_MIPS_DELTA_SYM_NO = 0x7000001E, // Number of entries
1243  // in DT_MIPS_DELTA_SYM.
1244  DT_MIPS_DELTA_CLASSSYM = 0x70000020, // Delta symbols that hold
1245  // class declarations.
1246  DT_MIPS_DELTA_CLASSSYM_NO = 0x70000021, // Number of entries
1247  // in DT_MIPS_DELTA_CLASSSYM.
1248  DT_MIPS_CXX_FLAGS = 0x70000022, // Flags indicating information
1249  // about C++ flavor.
1250  DT_MIPS_PIXIE_INIT = 0x70000023, // Pixie information.
1251  DT_MIPS_SYMBOL_LIB = 0x70000024, // Address of .MIPS.symlib
1252  DT_MIPS_LOCALPAGE_GOTIDX = 0x70000025, // The GOT index of the first PTE
1253  // for a segment
1254  DT_MIPS_LOCAL_GOTIDX = 0x70000026, // The GOT index of the first PTE
1255  // for a local symbol
1256  DT_MIPS_HIDDEN_GOTIDX = 0x70000027, // The GOT index of the first PTE
1257  // for a hidden symbol
1258  DT_MIPS_PROTECTED_GOTIDX = 0x70000028, // The GOT index of the first PTE
1259  // for a protected symbol
1260  DT_MIPS_OPTIONS = 0x70000029, // Address of `.MIPS.options'.
1261  DT_MIPS_INTERFACE = 0x7000002A, // Address of `.interface'.
1262  DT_MIPS_DYNSTR_ALIGN = 0x7000002B, // Unknown.
1263  DT_MIPS_INTERFACE_SIZE = 0x7000002C, // Size of the .interface section.
1264  DT_MIPS_RLD_TEXT_RESOLVE_ADDR = 0x7000002D, // Size of rld_text_resolve
1265  // function stored in the GOT.
1266  DT_MIPS_PERF_SUFFIX = 0x7000002E, // Default suffix of DSO to be added
1267  // by rld on dlopen() calls.
1268  DT_MIPS_COMPACT_SIZE = 0x7000002F, // Size of compact relocation
1269  // section (O32).
1270  DT_MIPS_GP_VALUE = 0x70000030, // GP value for auxiliary GOTs.
1271  DT_MIPS_AUX_DYNAMIC = 0x70000031, // Address of auxiliary .dynamic.
1272  DT_MIPS_PLTGOT = 0x70000032, // Address of the base of the PLTGOT.
1273  DT_MIPS_RWPLT = 0x70000034, // Points to the base
1274  // of a writable PLT.
1275  DT_MIPS_RLD_MAP_REL = 0x70000035, // Relative offset of run time loader
1276  // map, used for debugging.
1277 
1278  // Sun machine-independent extensions.
1279  DT_AUXILIARY = 0x7FFFFFFD, // Shared object to load before self
1280  DT_FILTER = 0x7FFFFFFF // Shared object to get values from
1281 };
1282 
1283 // DT_FLAGS values.
1284 enum {
1285  DF_ORIGIN = 0x01, // The object may reference $ORIGIN.
1286  DF_SYMBOLIC = 0x02, // Search the shared lib before searching the exe.
1287  DF_TEXTREL = 0x04, // Relocations may modify a non-writable segment.
1288  DF_BIND_NOW = 0x08, // Process all relocations on load.
1289  DF_STATIC_TLS = 0x10 // Reject attempts to load dynamically.
1290 };
1291 
1292 // State flags selectable in the `d_un.d_val' element of the DT_FLAGS_1 entry.
1293 enum {
1294  DF_1_NOW = 0x00000001, // Set RTLD_NOW for this object.
1295  DF_1_GLOBAL = 0x00000002, // Set RTLD_GLOBAL for this object.
1296  DF_1_GROUP = 0x00000004, // Set RTLD_GROUP for this object.
1297  DF_1_NODELETE = 0x00000008, // Set RTLD_NODELETE for this object.
1298  DF_1_LOADFLTR = 0x00000010, // Trigger filtee loading at runtime.
1299  DF_1_INITFIRST = 0x00000020, // Set RTLD_INITFIRST for this object.
1300  DF_1_NOOPEN = 0x00000040, // Set RTLD_NOOPEN for this object.
1301  DF_1_ORIGIN = 0x00000080, // $ORIGIN must be handled.
1302  DF_1_DIRECT = 0x00000100, // Direct binding enabled.
1303  DF_1_TRANS = 0x00000200,
1304  DF_1_INTERPOSE = 0x00000400, // Object is used to interpose.
1305  DF_1_NODEFLIB = 0x00000800, // Ignore default lib search path.
1306  DF_1_NODUMP = 0x00001000, // Object can't be dldump'ed.
1307  DF_1_CONFALT = 0x00002000, // Configuration alternative created.
1308  DF_1_ENDFILTEE = 0x00004000, // Filtee terminates filters search.
1309  DF_1_DISPRELDNE = 0x00008000, // Disp reloc applied at build time.
1310  DF_1_DISPRELPND = 0x00010000, // Disp reloc applied at run-time.
1311  DF_1_NODIRECT = 0x00020000, // Object has no-direct binding.
1312  DF_1_IGNMULDEF = 0x00040000,
1313  DF_1_NOKSYMS = 0x00080000,
1314  DF_1_NOHDR = 0x00100000,
1315  DF_1_EDITED = 0x00200000, // Object is modified after built.
1316  DF_1_NORELOC = 0x00400000,
1317  DF_1_SYMINTPOSE = 0x00800000, // Object has individual interposers.
1318  DF_1_GLOBAUDIT = 0x01000000, // Global auditing required.
1319  DF_1_SINGLETON = 0x02000000 // Singleton symbols are used.
1320 };
1321 
1322 // DT_MIPS_FLAGS values.
1323 enum {
1324  RHF_NONE = 0x00000000, // No flags.
1325  RHF_QUICKSTART = 0x00000001, // Uses shortcut pointers.
1326  RHF_NOTPOT = 0x00000002, // Hash size is not a power of two.
1327  RHS_NO_LIBRARY_REPLACEMENT = 0x00000004, // Ignore LD_LIBRARY_PATH.
1328  RHF_NO_MOVE = 0x00000008, // DSO address may not be relocated.
1329  RHF_SGI_ONLY = 0x00000010, // SGI specific features.
1330  RHF_GUARANTEE_INIT = 0x00000020, // Guarantee that .init will finish
1331  // executing before any non-init
1332  // code in DSO is called.
1333  RHF_DELTA_C_PLUS_PLUS = 0x00000040, // Contains Delta C++ code.
1334  RHF_GUARANTEE_START_INIT = 0x00000080, // Guarantee that .init will start
1335  // executing before any non-init
1336  // code in DSO is called.
1337  RHF_PIXIE = 0x00000100, // Generated by pixie.
1338  RHF_DEFAULT_DELAY_LOAD = 0x00000200, // Delay-load DSO by default.
1339  RHF_REQUICKSTART = 0x00000400, // Object may be requickstarted
1340  RHF_REQUICKSTARTED = 0x00000800, // Object has been requickstarted
1341  RHF_CORD = 0x00001000, // Generated by cord.
1342  RHF_NO_UNRES_UNDEF = 0x00002000, // Object contains no unresolved
1343  // undef symbols.
1344  RHF_RLD_ORDER_SAFE = 0x00004000 // Symbol table is in a safe order.
1345 };
1346 
1347 // ElfXX_VerDef structure version (GNU versioning)
1348 enum { VER_DEF_NONE = 0, VER_DEF_CURRENT = 1 };
1349 
1350 // VerDef Flags (ElfXX_VerDef::vd_flags)
1351 enum { VER_FLG_BASE = 0x1, VER_FLG_WEAK = 0x2, VER_FLG_INFO = 0x4 };
1352 
1353 // Special constants for the version table. (SHT_GNU_versym/.gnu.version)
1354 enum {
1355  VER_NDX_LOCAL = 0, // Unversioned local symbol
1356  VER_NDX_GLOBAL = 1, // Unversioned global symbol
1357  VERSYM_VERSION = 0x7fff, // Version Index mask
1358  VERSYM_HIDDEN = 0x8000 // Hidden bit (non-default version)
1359 };
1360 
1361 // ElfXX_VerNeed structure version (GNU versioning)
1363 
1364 // SHT_NOTE section types
1365 enum {
1376 };
1377 
1378 enum {
1383 };
1384 
1385 // AMDGPU specific notes.
1386 enum {
1387  // Note types with values between 0 and 9 (inclusive) are reserved.
1391 };
1392 
1393 enum {
1401 };
1402 
1403 // Android packed relocation group flags.
1404 enum {
1409 };
1410 
1411 // Compressed section header for ELF32.
1412 struct Elf32_Chdr {
1416 };
1417 
1418 // Compressed section header for ELF64.
1419 struct Elf64_Chdr {
1424 };
1425 
1426 // Legal values for ch_type field of compressed section header.
1427 enum {
1428  ELFCOMPRESS_ZLIB = 1, // ZLIB/DEFLATE algorithm.
1429  ELFCOMPRESS_LOOS = 0x60000000, // Start of OS-specific.
1430  ELFCOMPRESS_HIOS = 0x6fffffff, // End of OS-specific.
1431  ELFCOMPRESS_LOPROC = 0x70000000, // Start of processor-specific.
1432  ELFCOMPRESS_HIPROC = 0x7fffffff // End of processor-specific.
1433 };
1434 
1435 } // end namespace ELF
1436 } // end namespace llvm
1437 
1438 #endif // LLVM_BINARYFORMAT_ELF_H
Elf64_Word p_flags
Definition: ELF.h:1051
Elf32_Word sh_size
Definition: ELF.h:680
Elf64_Half e_phentsize
Definition: ELF.h:97
Elf64_Addr p_vaddr
Definition: ELF.h:1053
unsigned char st_other
Definition: ELF.h:881
void setSymbolAndType(Elf32_Word s, unsigned char t)
Definition: ELF.h:981
void setSymbolAndType(Elf32_Word s, unsigned char t)
Definition: ELF.h:998
Compute iterated dominance frontiers using a linear time algorithm.
Definition: AllocatorList.h:24
void setType(unsigned char t)
Definition: ELF.h:909
uint16_t Elf32_Half
Definition: ELF.h:31
Elf32_Word r_info
Definition: ELF.h:989
Elf32_Word getSymbol() const
Definition: ELF.h:994
Elf64_Xword r_info
Definition: ELF.h:1006
Elf64_Sxword r_addend
Definition: ELF.h:1023
unsigned char st_other
Definition: ELF.h:899
unsigned char getDataEncoding() const
Definition: ELF.h:82
Elf32_Addr r_offset
Definition: ELF.h:988
Elf32_Word d_val
Definition: ELF.h:1117
Elf32_Word sh_link
Definition: ELF.h:681
void setSymbolAndType(Elf64_Word s, Elf64_Word t)
Definition: ELF.h:1031
Elf32_Word e_flags
Definition: ELF.h:69
Elf32_Word p_align
Definition: ELF.h:1045
Elf64_Half e_shentsize
Definition: ELF.h:99
Elf64_Xword r_info
Definition: ELF.h:1022
uint64_t Elf64_Xword
Definition: ELF.h:40
Elf64_Addr e_entry
Definition: ELF.h:92
void setType(Elf64_Word t)
Definition: ELF.h:1030
Elf64_Xword p_memsz
Definition: ELF.h:1056
Elf32_Word getSymbol() const
Definition: ELF.h:977
static int64_t decodePPC64LocalEntryOffset(unsigned Other)
Definition: ELF.h:398
Elf32_Off e_shoff
Definition: ELF.h:68
Elf32_Word p_type
Definition: ELF.h:1038
Elf64_Word st_name
Definition: ELF.h:897
Elf32_Addr p_vaddr
Definition: ELF.h:1040
Elf32_Addr p_paddr
Definition: ELF.h:1041
unsigned char getType() const
Definition: ELF.h:887
unsigned char getDataEncoding() const
Definition: ELF.h:108
Elf32_Off sh_offset
Definition: ELF.h:679
Elf32_Word st_size
Definition: ELF.h:879
static unsigned encodePPC64LocalEntryOffset(int64_t Offset)
Definition: ELF.h:402
Elf64_Xword ch_size
Definition: ELF.h:1422
Elf64_Off p_offset
Definition: ELF.h:1052
Elf64_Off sh_offset
Definition: ELF.h:693
Elf64_Xword sh_entsize
Definition: ELF.h:698
Elf64_Xword sh_addralign
Definition: ELF.h:697
Elf32_Word ch_size
Definition: ELF.h:1414
Elf32_Word p_flags
Definition: ELF.h:1044
Elf32_Off e_phoff
Definition: ELF.h:67
Elf32_Word ch_addralign
Definition: ELF.h:1415
Elf64_Half e_type
Definition: ELF.h:89
Elf64_Xword sh_size
Definition: ELF.h:694
Elf64_Half e_machine
Definition: ELF.h:90
unsigned char getType() const
Definition: ELF.h:995
Elf32_Word sh_entsize
Definition: ELF.h:684
Elf64_Addr st_value
Definition: ELF.h:901
Elf64_Addr d_ptr
Definition: ELF.h:1127
unsigned char getType() const
Definition: ELF.h:907
Expected< const typename ELFT::Sym * > getSymbol(typename ELFT::SymRange Symbols, uint32_t Index)
Definition: ELF.h:249
Elf32_Half e_phnum
Definition: ELF.h:72
Elf64_Word getType() const
Definition: ELF.h:1028
Elf64_Word getType() const
Definition: ELF.h:1011
Elf32_Word p_filesz
Definition: ELF.h:1042
Elf32_Off p_offset
Definition: ELF.h:1039
Elf64_Xword p_filesz
Definition: ELF.h:1055
Elf64_Word getSymbol() const
Definition: ELF.h:1027
Elf64_Word sh_info
Definition: ELF.h:696
void setType(unsigned char t)
Definition: ELF.h:997
void setBinding(unsigned char b)
Definition: ELF.h:908
Elf64_Xword sh_flags
Definition: ELF.h:691
uint16_t Elf64_Half
Definition: ELF.h:37
Elf32_Sword r_addend
Definition: ELF.h:990
Elf32_Word sh_addralign
Definition: ELF.h:683
bool checkMagic() const
Definition: ELF.h:103
Elf32_Half st_shndx
Definition: ELF.h:882
All sections with the "c" flag are grouped together by the linker to form the constant pool and the c...
Definition: ELF.h:824
unsigned char getType() const
Definition: ELF.h:978
Elf32_Word p_memsz
Definition: ELF.h:1043
Elf32_Half e_machine
Definition: ELF.h:64
Elf64_Xword d_val
Definition: ELF.h:1126
Elf64_Xword p_align
Definition: ELF.h:1057
Elf64_Half e_shstrndx
Definition: ELF.h:101
Elf64_Half e_phnum
Definition: ELF.h:98
void setSymbol(Elf64_Word s)
Definition: ELF.h:1012
Elf32_Word sh_name
Definition: ELF.h:675
Elf32_Word st_name
Definition: ELF.h:877
Elf32_Addr e_entry
Definition: ELF.h:66
Elf32_Word ch_type
Definition: ELF.h:1413
Elf32_Word sh_info
Definition: ELF.h:682
Elf32_Word sh_flags
Definition: ELF.h:677
Elf32_Half e_type
Definition: ELF.h:63
Elf32_Addr st_value
Definition: ELF.h:878
static wasm::ValType getType(const TargetRegisterClass *RC)
unsigned char st_info
Definition: ELF.h:898
void setSymbolAndType(Elf64_Word s, Elf64_Word t)
Definition: ELF.h:1014
unsigned char getFileClass() const
Definition: ELF.h:81
Elf32_Half e_ehsize
Definition: ELF.h:70
int64_t Elf64_Sxword
Definition: ELF.h:41
static const char ElfMagic[]
Definition: ELF.h:44
Elf64_Word ch_type
Definition: ELF.h:1420
Elf64_Sxword d_tag
Definition: ELF.h:1124
Elf64_Off e_shoff
Definition: ELF.h:94
Elf64_Word p_type
Definition: ELF.h:1050
All sections with the "d" flag are grouped together by the linker to form the data section and the dp...
Definition: ELF.h:819
void setBindingAndType(unsigned char b, unsigned char t)
Definition: ELF.h:910
Elf64_Half st_shndx
Definition: ELF.h:900
void setSymbol(Elf32_Word s)
Definition: ELF.h:996
Elf64_Word e_version
Definition: ELF.h:91
Elf64_Off e_phoff
Definition: ELF.h:93
Elf64_Word ch_reserved
Definition: ELF.h:1421
Elf64_Xword st_size
Definition: ELF.h:902
Elf32_Addr sh_addr
Definition: ELF.h:678
unsigned char getBinding() const
Definition: ELF.h:906
Elf64_Word getSymbol() const
Definition: ELF.h:1010
Elf32_Addr d_ptr
Definition: ELF.h:1118
unsigned char getBinding() const
Definition: ELF.h:886
int32_t Elf32_Sword
Definition: ELF.h:33
bool checkMagic() const
Definition: ELF.h:77
Elf32_Half e_phentsize
Definition: ELF.h:71
Elf64_Addr r_offset
Definition: ELF.h:1021
unsigned char e_ident[EI_NIDENT]
Definition: ELF.h:62
void setType(Elf64_Word t)
Definition: ELF.h:1013
Elf64_Word sh_name
Definition: ELF.h:689
Merge contiguous icmps into a memcmp
Definition: MergeICmps.cpp:647
Elf32_Addr r_offset
Definition: ELF.h:972
unsigned char st_info
Definition: ELF.h:880
int32_t Elf64_Sword
Definition: ELF.h:39
Elf64_Word sh_link
Definition: ELF.h:695
void setType(unsigned char t)
Definition: ELF.h:980
Elf64_Addr r_offset
Definition: ELF.h:1005
Elf32_Word e_version
Definition: ELF.h:65
Elf32_Half e_shnum
Definition: ELF.h:74
Elf64_Addr sh_addr
Definition: ELF.h:692
void setType(unsigned char t)
Definition: ELF.h:889
Elf64_Word sh_type
Definition: ELF.h:690
void setSymbol(Elf64_Word s)
Definition: ELF.h:1029
Elf32_Sword d_tag
Definition: ELF.h:1115
Elf64_Half e_shnum
Definition: ELF.h:100
Elf32_Word sh_type
Definition: ELF.h:676
Elf32_Half e_shentsize
Definition: ELF.h:73
uint64_t Elf64_Off
Definition: ELF.h:36
Elf32_Half e_shstrndx
Definition: ELF.h:75
unsigned char getFileClass() const
Definition: ELF.h:107
Elf64_Addr p_paddr
Definition: ELF.h:1054
void setBindingAndType(unsigned char b, unsigned char t)
Definition: ELF.h:890
Elf64_Half e_ehsize
Definition: ELF.h:96
uint64_t Elf64_Addr
Definition: ELF.h:35
Elf32_Word r_info
Definition: ELF.h:973
void setSymbol(Elf32_Word s)
Definition: ELF.h:979
Elf64_Xword ch_addralign
Definition: ELF.h:1423
void setBinding(unsigned char b)
Definition: ELF.h:888
Elf64_Word e_flags
Definition: ELF.h:95