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| 1 | /* Run-time dynamic linker data structures for loaded ELF shared objects. |
|---|---|
| 2 | Copyright (C) 2010-2022 Free Software Foundation, Inc. |
| 3 | This file is part of the GNU C Library. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library. If not, see |
| 17 | <https://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #ifndef _ARM_LINUX_LDSODEFS_H |
| 20 | #define _ARM_LINUX_LDSODEFS_H 1 |
| 21 | |
| 22 | #include_next <ldsodefs.h> |
| 23 | |
| 24 | #undef VALID_ELF_HEADER |
| 25 | #undef VALID_ELF_OSABI |
| 26 | #undef MORE_ELF_HEADER_DATA |
| 27 | |
| 28 | #define EXTRA_OSABI ELFOSABI_ARM_AEABI |
| 29 | |
| 30 | #ifdef __ARM_PCS_VFP |
| 31 | # define VALID_FLOAT_ABI(x) \ |
| 32 | ((EF_ARM_EABI_VERSION ((x)) != EF_ARM_EABI_VER5) \ |
| 33 | || !((x) & EF_ARM_ABI_FLOAT_SOFT)) |
| 34 | #else |
| 35 | # define VALID_FLOAT_ABI(x) \ |
| 36 | ((EF_ARM_EABI_VERSION ((x)) != EF_ARM_EABI_VER5) \ |
| 37 | || !((x) & EF_ARM_ABI_FLOAT_HARD)) |
| 38 | #endif |
| 39 | |
| 40 | #undef VALID_ELF_HEADER |
| 41 | #define VALID_ELF_HEADER(hdr,exp,size) \ |
| 42 | ((memcmp (hdr, exp, size) == 0 \ |
| 43 | || memcmp (hdr, expected2, size) == 0 \ |
| 44 | || memcmp (hdr, expected3, size) == 0) \ |
| 45 | && VALID_FLOAT_ABI (ehdr->e_flags)) |
| 46 | #define VALID_ELF_OSABI(osabi) (osabi == ELFOSABI_SYSV \ |
| 47 | || osabi == ELFOSABI_GNU \ |
| 48 | || osabi == EXTRA_OSABI) |
| 49 | #define MORE_ELF_HEADER_DATA \ |
| 50 | static const unsigned char expected2[EI_PAD] = \ |
| 51 | { \ |
| 52 | [EI_MAG0] = ELFMAG0, \ |
| 53 | [EI_MAG1] = ELFMAG1, \ |
| 54 | [EI_MAG2] = ELFMAG2, \ |
| 55 | [EI_MAG3] = ELFMAG3, \ |
| 56 | [EI_CLASS] = ELFW(CLASS), \ |
| 57 | [EI_DATA] = byteorder, \ |
| 58 | [EI_VERSION] = EV_CURRENT, \ |
| 59 | [EI_OSABI] = ELFOSABI_GNU \ |
| 60 | }; \ |
| 61 | static const unsigned char expected3[EI_PAD] = \ |
| 62 | { \ |
| 63 | [EI_MAG0] = ELFMAG0, \ |
| 64 | [EI_MAG1] = ELFMAG1, \ |
| 65 | [EI_MAG2] = ELFMAG2, \ |
| 66 | [EI_MAG3] = ELFMAG3, \ |
| 67 | [EI_CLASS] = ELFW(CLASS), \ |
| 68 | [EI_DATA] = byteorder, \ |
| 69 | [EI_VERSION] = EV_CURRENT, \ |
| 70 | [EI_OSABI] = EXTRA_OSABI \ |
| 71 | } |
| 72 | |
| 73 | #endif |
| 74 |
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