| /* |
| * Copyright (C) 2015 Imagination Technologies |
| * Author: Alex Smith <alex.smith@imgtec.com> |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the |
| * Free Software Foundation; either version 2 of the License, or (at your |
| * option) any later version. |
| */ |
| |
| #include "vdso.h" |
| |
| #include <linux/elfnote.h> |
| #include <linux/version.h> |
| |
| ELFNOTE_START(Linux, 0, "a") |
| .long LINUX_VERSION_CODE |
| ELFNOTE_END |
| |
| /* |
| * The .MIPS.abiflags section must be defined with the FP ABI flags set |
| * to 'any' to be able to link with both old and new libraries. |
| * Newer toolchains are capable of automatically generating this, but we want |
| * to work with older toolchains as well. Therefore, we define the contents of |
| * this section here (under different names), and then genvdso will patch |
| * it to have the correct name and type. |
| * |
| * We base the .MIPS.abiflags section on preprocessor definitions rather than |
| * CONFIG_* because we need to match the particular ABI we are building the |
| * VDSO for. |
| * |
| * See https://dmz-portal.mips.com/wiki/MIPS_O32_ABI_-_FR0_and_FR1_Interlinking |
| * for the .MIPS.abiflags section description. |
| */ |
| |
| .section .mips_abiflags, "a" |
| .align 3 |
| __mips_abiflags: |
| .hword 0 /* version */ |
| .byte __mips /* isa_level */ |
| |
| /* isa_rev */ |
| #ifdef __mips_isa_rev |
| .byte __mips_isa_rev |
| #else |
| .byte 0 |
| #endif |
| |
| /* gpr_size */ |
| #ifdef __mips64 |
| .byte 2 /* AFL_REG_64 */ |
| #else |
| .byte 1 /* AFL_REG_32 */ |
| #endif |
| |
| /* cpr1_size */ |
| #if (defined(__mips_isa_rev) && __mips_isa_rev >= 6) || defined(__mips64) |
| .byte 2 /* AFL_REG_64 */ |
| #else |
| .byte 1 /* AFL_REG_32 */ |
| #endif |
| |
| .byte 0 /* cpr2_size (AFL_REG_NONE) */ |
| .byte 0 /* fp_abi (Val_GNU_MIPS_ABI_FP_ANY) */ |
| .word 0 /* isa_ext */ |
| .word 0 /* ases */ |
| .word 0 /* flags1 */ |
| .word 0 /* flags2 */ |
