Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
33 lines
647 B
ArmAsm
33 lines
647 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Syscall restart trampoline for 32 and 64 bits processes.
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*
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* Copyright (C) 2018-2022 Helge Deller <deller@gmx.de>
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* Copyright (C) 2022 John David Anglin <dave.anglin@bell.net>
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*/
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#include <asm/unistd.h>
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#include <asm/vdso.h>
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#include <linux/linkage.h>
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.text
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ENTRY_CFI(__kernel_restart_syscall)
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/*
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* Setup a trampoline to restart the syscall
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* with __NR_restart_syscall
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*/
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/* load return pointer */
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#if defined(__VDSO64__)
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ldd 0(%sp), %r31
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#elif defined(__VDSO32__)
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ldw 0(%sp), %r31
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#endif
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be 0x100(%sr2, %r0)
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ldi __NR_restart_syscall, %r20
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ENDPROC_CFI(__kernel_restart_syscall)
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