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-rw-r--r--tools/perf/util/genelf.h83
1 files changed, 83 insertions, 0 deletions
diff --git a/tools/perf/util/genelf.h b/tools/perf/util/genelf.h
new file mode 100644
index 000000000..6af062d1c
--- /dev/null
+++ b/tools/perf/util/genelf.h
@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __GENELF_H__
+#define __GENELF_H__
+
+#include <linux/math.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
+#elif defined(__sparc__) && defined(__arch64__)
+#define GEN_ELF_ARCH EM_SPARCV9
+#define GEN_ELF_CLASS ELFCLASS64
+#elif defined(__sparc__)
+#define GEN_ELF_ARCH EM_SPARC
+#define GEN_ELF_CLASS ELFCLASS32
+#elif defined(__s390x__)
+#define GEN_ELF_ARCH EM_S390
+#define GEN_ELF_CLASS ELFCLASS64
+#elif defined(__riscv) && __riscv_xlen == 64
+#define GEN_ELF_ARCH EM_RISCV
+#define GEN_ELF_CLASS ELFCLASS64
+#else
+#error "unsupported architecture"
+#endif
+
+#if __BYTE_ORDER__ == __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_newphdr elf64_newphdr
+#define elf_getshdr elf64_getshdr
+#define Elf_Ehdr Elf64_Ehdr
+#define Elf_Phdr Elf64_Phdr
+#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_newphdr elf32_newphdr
+#define elf_getshdr elf32_getshdr
+#define Elf_Ehdr Elf32_Ehdr
+#define Elf_Phdr Elf32_Phdr
+#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 round_up(sizeof(Elf_Ehdr) + sizeof(Elf_Phdr), 16)
+
+#endif