Linux kernel mirror (for testing)
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __GENELF_H__
3#define __GENELF_H__
4
5#include <linux/math.h>
6
7/* genelf.c */
8int jit_write_elf(int fd, uint64_t code_addr, const char *sym,
9 const void *code, int csize, void *debug, int nr_debug_entries,
10 void *unwinding, uint64_t unwinding_header_size, uint64_t unwinding_size);
11#ifdef HAVE_LIBDW_SUPPORT
12/* genelf_debug.c */
13int jit_add_debug_info(Elf *e, uint64_t code_addr, void *debug, int nr_debug_entries);
14#endif
15
16#if defined(__arm__)
17#define GEN_ELF_ARCH EM_ARM
18#define GEN_ELF_CLASS ELFCLASS32
19#elif defined(__aarch64__)
20#define GEN_ELF_ARCH EM_AARCH64
21#define GEN_ELF_CLASS ELFCLASS64
22#elif defined(__x86_64__)
23#define GEN_ELF_ARCH EM_X86_64
24#define GEN_ELF_CLASS ELFCLASS64
25#elif defined(__i386__)
26#define GEN_ELF_ARCH EM_386
27#define GEN_ELF_CLASS ELFCLASS32
28#elif defined(__powerpc64__)
29#define GEN_ELF_ARCH EM_PPC64
30#define GEN_ELF_CLASS ELFCLASS64
31#elif defined(__powerpc__)
32#define GEN_ELF_ARCH EM_PPC
33#define GEN_ELF_CLASS ELFCLASS32
34#elif defined(__sparc__) && defined(__arch64__)
35#define GEN_ELF_ARCH EM_SPARCV9
36#define GEN_ELF_CLASS ELFCLASS64
37#elif defined(__sparc__)
38#define GEN_ELF_ARCH EM_SPARC
39#define GEN_ELF_CLASS ELFCLASS32
40#elif defined(__s390x__)
41#define GEN_ELF_ARCH EM_S390
42#define GEN_ELF_CLASS ELFCLASS64
43#elif defined(__riscv) && __riscv_xlen == 64
44#define GEN_ELF_ARCH EM_RISCV
45#define GEN_ELF_CLASS ELFCLASS64
46#elif defined(__riscv) && __riscv_xlen == 32
47#define GEN_ELF_ARCH EM_RISCV
48#define GEN_ELF_CLASS ELFCLASS32
49#elif defined(__loongarch__)
50#define GEN_ELF_ARCH EM_LOONGARCH
51#define GEN_ELF_CLASS ELFCLASS64
52#else
53#error "unsupported architecture"
54#endif
55
56#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
57#define GEN_ELF_ENDIAN ELFDATA2MSB
58#else
59#define GEN_ELF_ENDIAN ELFDATA2LSB
60#endif
61
62#if GEN_ELF_CLASS == ELFCLASS64
63#define elf_newehdr elf64_newehdr
64#define elf_newphdr elf64_newphdr
65#define elf_getshdr elf64_getshdr
66#define Elf_Ehdr Elf64_Ehdr
67#define Elf_Phdr Elf64_Phdr
68#define Elf_Shdr Elf64_Shdr
69#define Elf_Sym Elf64_Sym
70#define ELF_ST_TYPE(a) ELF64_ST_TYPE(a)
71#define ELF_ST_BIND(a) ELF64_ST_BIND(a)
72#define ELF_ST_VIS(a) ELF64_ST_VISIBILITY(a)
73#else
74#define elf_newehdr elf32_newehdr
75#define elf_newphdr elf32_newphdr
76#define elf_getshdr elf32_getshdr
77#define Elf_Ehdr Elf32_Ehdr
78#define Elf_Phdr Elf32_Phdr
79#define Elf_Shdr Elf32_Shdr
80#define Elf_Sym Elf32_Sym
81#define ELF_ST_TYPE(a) ELF32_ST_TYPE(a)
82#define ELF_ST_BIND(a) ELF32_ST_BIND(a)
83#define ELF_ST_VIS(a) ELF32_ST_VISIBILITY(a)
84#endif
85
86/* The .text section is directly after the ELF header */
87#define GEN_ELF_TEXT_OFFSET round_up(sizeof(Elf_Ehdr) + sizeof(Elf_Phdr), 16)
88
89#endif