2 * Copyright (c) 2018 John Baldwin
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 _libelf_is_mips64el(Elf *e)
37 return (e->e_kind == ELF_K_ELF && e->e_class == ELFCLASS64 &&
38 e->e_u.e_elf.e_ehdr.e_ehdr64->e_machine == EM_MIPS &&
39 e->e_u.e_elf.e_ehdr.e_ehdr64->e_ident[EI_DATA] == ELFDATA2LSB);
43 * For MIPS64, the r_info field is actually stored as a 32-bit symbol
44 * index (r_sym) followed by four single-byte fields (r_ssym, r_type3,
45 * r_type2, and r_type). The byte-swap for the little-endian case
46 * jumbles this incorrectly so compensate.
49 _libelf_mips64el_r_info_tof(Elf64_Xword r_info)
52 uint8_t ssym, type3, type2, type;
58 new_info = r_info >> 32;
59 new_info |= (Elf64_Xword)ssym << 32;
60 new_info |= (Elf64_Xword)type3 << 40;
61 new_info |= (Elf64_Xword)type2 << 48;
62 new_info |= (Elf64_Xword)type << 56;
67 _libelf_mips64el_r_info_tom(Elf64_Xword r_info)
70 uint8_t ssym, type3, type2, type;
76 new_info = (r_info & 0xffffffff) << 32;
77 new_info |= (Elf64_Xword)ssym << 24;
78 new_info |= (Elf64_Xword)type3 << 16;
79 new_info |= (Elf64_Xword)type2 << 8;
80 new_info |= (Elf64_Xword)type;