forked from luck/tmp_suning_uos_patched
24640f233b
The mips vDSO library requires some adaptations to take advantage of the newly introduced generic vDSO library. Introduce the following changes: - Modification of vdso.c to be compliant with the common vdso datapage - Use of lib/vdso for gettimeofday Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Burton <paul.burton@mips.com> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> [paul.burton@mips.com: Prepend $(src) to config-n32-o32-env.c path.] Signed-off-by: Paul Burton <paul.burton@mips.com>
63 lines
1.6 KiB
ArmAsm
63 lines
1.6 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2015 Imagination Technologies
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* Author: Alex Smith <alex.smith@imgtec.com>
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*/
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#include <asm/vdso/vdso.h>
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#include <asm/isa-rev.h>
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#include <linux/elfnote.h>
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#include <linux/version.h>
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ELFNOTE_START(Linux, 0, "a")
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.long LINUX_VERSION_CODE
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ELFNOTE_END
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/*
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* The .MIPS.abiflags section must be defined with the FP ABI flags set
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* to 'any' to be able to link with both old and new libraries.
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* Newer toolchains are capable of automatically generating this, but we want
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* to work with older toolchains as well. Therefore, we define the contents of
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* this section here (under different names), and then genvdso will patch
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* it to have the correct name and type.
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*
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* We base the .MIPS.abiflags section on preprocessor definitions rather than
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* CONFIG_* because we need to match the particular ABI we are building the
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* VDSO for.
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*
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* See https://dmz-portal.mips.com/wiki/MIPS_O32_ABI_-_FR0_and_FR1_Interlinking
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* for the .MIPS.abiflags section description.
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*/
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.section .mips_abiflags, "a"
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.align 3
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__mips_abiflags:
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.hword 0 /* version */
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.byte __mips /* isa_level */
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/* isa_rev */
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.byte MIPS_ISA_REV
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/* gpr_size */
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#ifdef __mips64
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.byte 2 /* AFL_REG_64 */
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#else
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.byte 1 /* AFL_REG_32 */
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#endif
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/* cpr1_size */
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#if (MIPS_ISA_REV >= 6) || defined(__mips64)
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.byte 2 /* AFL_REG_64 */
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#else
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.byte 1 /* AFL_REG_32 */
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#endif
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.byte 0 /* cpr2_size (AFL_REG_NONE) */
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.byte 0 /* fp_abi (Val_GNU_MIPS_ABI_FP_ANY) */
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.word 0 /* isa_ext */
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.word 0 /* ases */
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.word 0 /* flags1 */
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.word 0 /* flags2 */
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