genelf.h

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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __GENELF_H__
#define __GENELF_H__

/* genelf.c */
int jit_write_elf(int fd, uint64_t code_addr, const char *sym,
          const void *code, int csize, void *debug, int nr_debug_entries,
          void *unwinding, uint64_t unwinding_header_size, uint64_t unwinding_size);
#ifdef HAVE_DWARF_SUPPORT
/* genelf_debug.c */
int jit_add_debug_info(Elf *e, uint64_t code_addr, void *debug, int nr_debug_entries);
#endif

#if   defined(__arm__)
#define GEN_ELF_ARCH    EM_ARM
#define GEN_ELF_CLASS   ELFCLASS32
#elif defined(__aarch64__)
#define GEN_ELF_ARCH    EM_AARCH64
#define GEN_ELF_CLASS   ELFCLASS64
#elif defined(__x86_64__)
#define GEN_ELF_ARCH    EM_X86_64
#define GEN_ELF_CLASS   ELFCLASS64
#elif defined(__i386__)
#define GEN_ELF_ARCH    EM_386
#define GEN_ELF_CLASS   ELFCLASS32
#elif defined(__powerpc64__)
#define GEN_ELF_ARCH    EM_PPC64
#define GEN_ELF_CLASS   ELFCLASS64
#elif defined(__powerpc__)
#define GEN_ELF_ARCH    EM_PPC
#define GEN_ELF_CLASS   ELFCLASS32
#else
#error "unsupported architecture"
#endif

#if __BYTE_ORDER == __BIG_ENDIAN
#define GEN_ELF_ENDIAN  ELFDATA2MSB
#else
#define GEN_ELF_ENDIAN  ELFDATA2LSB
#endif

#if GEN_ELF_CLASS == ELFCLASS64
#define elf_newehdr elf64_newehdr
#define elf_getshdr elf64_getshdr
#define Elf_Ehdr    Elf64_Ehdr
#define Elf_Shdr    Elf64_Shdr
#define Elf_Sym     Elf64_Sym
#define ELF_ST_TYPE(a)  ELF64_ST_TYPE(a)
#define ELF_ST_BIND(a)  ELF64_ST_BIND(a)
#define ELF_ST_VIS(a)   ELF64_ST_VISIBILITY(a)
#else
#define elf_newehdr elf32_newehdr
#define elf_getshdr elf32_getshdr
#define Elf_Ehdr    Elf32_Ehdr
#define Elf_Shdr    Elf32_Shdr
#define Elf_Sym     Elf32_Sym
#define ELF_ST_TYPE(a)  ELF32_ST_TYPE(a)
#define ELF_ST_BIND(a)  ELF32_ST_BIND(a)
#define ELF_ST_VIS(a)   ELF32_ST_VISIBILITY(a)
#endif

/* The .text section is directly after the ELF header */
#define GEN_ELF_TEXT_OFFSET sizeof(Elf_Ehdr)

#endif