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Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01001/* SPDX-License-Identifier: GPL-2.0 */
Stephane Eranian9b07e272015-11-30 10:02:21 +01002#ifndef __GENELF_H__
3#define __GENELF_H__
4
5/* genelf.c */
Arnaldo Carvalho de Melo3938bad2016-03-23 15:06:35 -03006int jit_write_elf(int fd, uint64_t code_addr, const char *sym,
Stefano Sanfilippo086f9f32016-10-13 03:59:41 -07007 const void *code, int csize, void *debug, int nr_debug_entries,
8 void *unwinding, uint64_t unwinding_header_size, uint64_t unwinding_size);
Maciej Debski621cb4e2016-10-13 03:59:36 -07009#ifdef HAVE_DWARF_SUPPORT
Stephane Eranian598b7c62015-11-30 10:02:23 +010010/* genelf_debug.c */
Arnaldo Carvalho de Melo3938bad2016-03-23 15:06:35 -030011int jit_add_debug_info(Elf *e, uint64_t code_addr, void *debug, int nr_debug_entries);
Maciej Debski621cb4e2016-10-13 03:59:36 -070012#endif
Stephane Eranian9b07e272015-11-30 10:02:21 +010013
14#if defined(__arm__)
15#define GEN_ELF_ARCH EM_ARM
Stephane Eranian9b07e272015-11-30 10:02:21 +010016#define GEN_ELF_CLASS ELFCLASS32
17#elif defined(__aarch64__)
18#define GEN_ELF_ARCH EM_AARCH64
Stephane Eranian9b07e272015-11-30 10:02:21 +010019#define GEN_ELF_CLASS ELFCLASS64
20#elif defined(__x86_64__)
21#define GEN_ELF_ARCH EM_X86_64
Stephane Eranian9b07e272015-11-30 10:02:21 +010022#define GEN_ELF_CLASS ELFCLASS64
23#elif defined(__i386__)
24#define GEN_ELF_ARCH EM_386
Stephane Eranian9b07e272015-11-30 10:02:21 +010025#define GEN_ELF_CLASS ELFCLASS32
Anton Blanchard9f56c092016-03-29 17:59:44 +110026#elif defined(__powerpc64__)
27#define GEN_ELF_ARCH EM_PPC64
Stephane Eranian9b07e272015-11-30 10:02:21 +010028#define GEN_ELF_CLASS ELFCLASS64
29#elif defined(__powerpc__)
Anton Blanchard9f56c092016-03-29 17:59:44 +110030#define GEN_ELF_ARCH EM_PPC
31#define GEN_ELF_CLASS ELFCLASS32
David Millerd87b9792018-10-16 21:15:45 -070032#elif defined(__sparc__) && defined(__arch64__)
33#define GEN_ELF_ARCH EM_SPARCV9
34#define GEN_ELF_CLASS ELFCLASS64
35#elif defined(__sparc__)
36#define GEN_ELF_ARCH EM_SPARC
37#define GEN_ELF_CLASS ELFCLASS32
Stephane Eranian9b07e272015-11-30 10:02:21 +010038#else
39#error "unsupported architecture"
40#endif
41
Anton Blanchard9f56c092016-03-29 17:59:44 +110042#if __BYTE_ORDER == __BIG_ENDIAN
43#define GEN_ELF_ENDIAN ELFDATA2MSB
44#else
45#define GEN_ELF_ENDIAN ELFDATA2LSB
46#endif
47
Stephane Eranian9b07e272015-11-30 10:02:21 +010048#if GEN_ELF_CLASS == ELFCLASS64
49#define elf_newehdr elf64_newehdr
50#define elf_getshdr elf64_getshdr
51#define Elf_Ehdr Elf64_Ehdr
52#define Elf_Shdr Elf64_Shdr
53#define Elf_Sym Elf64_Sym
54#define ELF_ST_TYPE(a) ELF64_ST_TYPE(a)
55#define ELF_ST_BIND(a) ELF64_ST_BIND(a)
56#define ELF_ST_VIS(a) ELF64_ST_VISIBILITY(a)
57#else
58#define elf_newehdr elf32_newehdr
59#define elf_getshdr elf32_getshdr
60#define Elf_Ehdr Elf32_Ehdr
61#define Elf_Shdr Elf32_Shdr
62#define Elf_Sym Elf32_Sym
63#define ELF_ST_TYPE(a) ELF32_ST_TYPE(a)
64#define ELF_ST_BIND(a) ELF32_ST_BIND(a)
65#define ELF_ST_VIS(a) ELF32_ST_VISIBILITY(a)
66#endif
67
68/* The .text section is directly after the ELF header */
69#define GEN_ELF_TEXT_OFFSET sizeof(Elf_Ehdr)
70
71#endif