tools/perf/util/genelf.h

   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 */
   8 int 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 */
  13 int 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