tools/perf/util/genelf.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __GENELF_H__
   3 #define __GENELF_H__
   4
   5 /* genelf.c */
   6 int jit_write_elf(int fd, uint64_t code_addr, const char *sym,
   7                   const void *code, int csize, void *debug, int nr_debug_entries,
   8                   void *unwinding, uint64_t unwinding_header_size, uint64_t unwinding_size);
   9 #ifdef HAVE_DWARF_SUPPORT
  10 /* genelf_debug.c */
  11 int jit_add_debug_info(Elf *e, uint64_t code_addr, void *debug, int nr_debug_entries);
  12 #endif
  13
  14 #if   defined(__arm__)
  15 #define GEN_ELF_ARCH    EM_ARM
  16 #define GEN_ELF_CLASS   ELFCLASS32
  17 #elif defined(__aarch64__)
  18 #define GEN_ELF_ARCH    EM_AARCH64
  19 #define GEN_ELF_CLASS   ELFCLASS64
  20 #elif defined(__x86_64__)
  21 #define GEN_ELF_ARCH    EM_X86_64
  22 #define GEN_ELF_CLASS   ELFCLASS64
  23 #elif defined(__i386__)
  24 #define GEN_ELF_ARCH    EM_386
  25 #define GEN_ELF_CLASS   ELFCLASS32
  26 #elif defined(__powerpc64__)
  27 #define GEN_ELF_ARCH    EM_PPC64
  28 #define GEN_ELF_CLASS   ELFCLASS64
  29 #elif defined(__powerpc__)
  30 #define GEN_ELF_ARCH    EM_PPC
  31 #define GEN_ELF_CLASS   ELFCLASS32
  32 #else
  33 #error "unsupported architecture"
  34 #endif
  35
  36 #if __BYTE_ORDER == __BIG_ENDIAN
  37 #define GEN_ELF_ENDIAN  ELFDATA2MSB
  38 #else
  39 #define GEN_ELF_ENDIAN  ELFDATA2LSB
  40 #endif
  41
  42 #if GEN_ELF_CLASS == ELFCLASS64
  43 #define elf_newehdr     elf64_newehdr
  44 #define elf_getshdr     elf64_getshdr
  45 #define Elf_Ehdr        Elf64_Ehdr
  46 #define Elf_Shdr        Elf64_Shdr
  47 #define Elf_Sym         Elf64_Sym
  48 #define ELF_ST_TYPE(a)  ELF64_ST_TYPE(a)
  49 #define ELF_ST_BIND(a)  ELF64_ST_BIND(a)
  50 #define ELF_ST_VIS(a)   ELF64_ST_VISIBILITY(a)
  51 #else
  52 #define elf_newehdr     elf32_newehdr
  53 #define elf_getshdr     elf32_getshdr
  54 #define Elf_Ehdr        Elf32_Ehdr
  55 #define Elf_Shdr        Elf32_Shdr
  56 #define Elf_Sym         Elf32_Sym
  57 #define ELF_ST_TYPE(a)  ELF32_ST_TYPE(a)
  58 #define ELF_ST_BIND(a)  ELF32_ST_BIND(a)
  59 #define ELF_ST_VIS(a)   ELF32_ST_VISIBILITY(a)
  60 #endif
  61
  62 /* The .text section is directly after the ELF header */
  63 #define GEN_ELF_TEXT_OFFSET sizeof(Elf_Ehdr)
  64
  65 #endif