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89b15d0052
When a program header was added, it moved the text section but
GEN_ELF_TEXT_OFFSET was not updated.
Fix by adding the program header size and aligning.
Fixes: babd04386b ("perf jit: Include program header in ELF files")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Lieven Hey <lieven.hey@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20221014170905.64069-7-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
84 lines
2.4 KiB
C
84 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __GENELF_H__
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#define __GENELF_H__
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#include <linux/math.h>
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/* genelf.c */
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int jit_write_elf(int fd, uint64_t code_addr, const char *sym,
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const void *code, int csize, void *debug, int nr_debug_entries,
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void *unwinding, uint64_t unwinding_header_size, uint64_t unwinding_size);
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#ifdef HAVE_DWARF_SUPPORT
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/* genelf_debug.c */
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int jit_add_debug_info(Elf *e, uint64_t code_addr, void *debug, int nr_debug_entries);
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#endif
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#if defined(__arm__)
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#define GEN_ELF_ARCH EM_ARM
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#define GEN_ELF_CLASS ELFCLASS32
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#elif defined(__aarch64__)
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#define GEN_ELF_ARCH EM_AARCH64
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#define GEN_ELF_CLASS ELFCLASS64
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#elif defined(__x86_64__)
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#define GEN_ELF_ARCH EM_X86_64
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#define GEN_ELF_CLASS ELFCLASS64
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#elif defined(__i386__)
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#define GEN_ELF_ARCH EM_386
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#define GEN_ELF_CLASS ELFCLASS32
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#elif defined(__powerpc64__)
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#define GEN_ELF_ARCH EM_PPC64
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#define GEN_ELF_CLASS ELFCLASS64
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#elif defined(__powerpc__)
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#define GEN_ELF_ARCH EM_PPC
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#define GEN_ELF_CLASS ELFCLASS32
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#elif defined(__sparc__) && defined(__arch64__)
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#define GEN_ELF_ARCH EM_SPARCV9
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#define GEN_ELF_CLASS ELFCLASS64
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#elif defined(__sparc__)
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#define GEN_ELF_ARCH EM_SPARC
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#define GEN_ELF_CLASS ELFCLASS32
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#elif defined(__s390x__)
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#define GEN_ELF_ARCH EM_S390
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#define GEN_ELF_CLASS ELFCLASS64
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#elif defined(__riscv) && __riscv_xlen == 64
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#define GEN_ELF_ARCH EM_RISCV
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#define GEN_ELF_CLASS ELFCLASS64
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#else
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#error "unsupported architecture"
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#endif
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#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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#define GEN_ELF_ENDIAN ELFDATA2MSB
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#else
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#define GEN_ELF_ENDIAN ELFDATA2LSB
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#endif
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#if GEN_ELF_CLASS == ELFCLASS64
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#define elf_newehdr elf64_newehdr
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#define elf_newphdr elf64_newphdr
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#define elf_getshdr elf64_getshdr
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#define Elf_Ehdr Elf64_Ehdr
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#define Elf_Phdr Elf64_Phdr
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#define Elf_Shdr Elf64_Shdr
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#define Elf_Sym Elf64_Sym
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#define ELF_ST_TYPE(a) ELF64_ST_TYPE(a)
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#define ELF_ST_BIND(a) ELF64_ST_BIND(a)
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#define ELF_ST_VIS(a) ELF64_ST_VISIBILITY(a)
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#else
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#define elf_newehdr elf32_newehdr
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#define elf_newphdr elf32_newphdr
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#define elf_getshdr elf32_getshdr
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#define Elf_Ehdr Elf32_Ehdr
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#define Elf_Phdr Elf32_Phdr
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#define Elf_Shdr Elf32_Shdr
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#define Elf_Sym Elf32_Sym
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#define ELF_ST_TYPE(a) ELF32_ST_TYPE(a)
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#define ELF_ST_BIND(a) ELF32_ST_BIND(a)
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#define ELF_ST_VIS(a) ELF32_ST_VISIBILITY(a)
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#endif
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/* The .text section is directly after the ELF header */
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#define GEN_ELF_TEXT_OFFSET round_up(sizeof(Elf_Ehdr) + sizeof(Elf_Phdr), 16)
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#endif
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