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_DWARF_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 #else 47 #error "unsupported architecture" 48 #endif 49 50 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 51 #define GEN_ELF_ENDIAN ELFDATA2MSB 52 #else 53 #define GEN_ELF_ENDIAN ELFDATA2LSB 54 #endif 55 56 #if GEN_ELF_CLASS == ELFCLASS64 57 #define elf_newehdr elf64_newehdr 58 #define elf_newphdr elf64_newphdr 59 #define elf_getshdr elf64_getshdr 60 #define Elf_Ehdr Elf64_Ehdr 61 #define Elf_Phdr Elf64_Phdr 62 #define Elf_Shdr Elf64_Shdr 63 #define Elf_Sym Elf64_Sym 64 #define ELF_ST_TYPE(a) ELF64_ST_TYPE(a) 65 #define ELF_ST_BIND(a) ELF64_ST_BIND(a) 66 #define ELF_ST_VIS(a) ELF64_ST_VISIBILITY(a) 67 #else 68 #define elf_newehdr elf32_newehdr 69 #define elf_newphdr elf32_newphdr 70 #define elf_getshdr elf32_getshdr 71 #define Elf_Ehdr Elf32_Ehdr 72 #define Elf_Phdr Elf32_Phdr 73 #define Elf_Shdr Elf32_Shdr 74 #define Elf_Sym Elf32_Sym 75 #define ELF_ST_TYPE(a) ELF32_ST_TYPE(a) 76 #define ELF_ST_BIND(a) ELF32_ST_BIND(a) 77 #define ELF_ST_VIS(a) ELF32_ST_VISIBILITY(a) 78 #endif 79 80 /* The .text section is directly after the ELF header */ 81 #define GEN_ELF_TEXT_OFFSET round_up(sizeof(Elf_Ehdr) + sizeof(Elf_Phdr), 16) 82 83 #endif 84