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>
29 lines
564 B
ArmAsm
29 lines
564 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* 64-bit assembly helpers for asm operations that lack support in both gcc and
|
|
* clang. For example, clang asm does not support segment prefixes.
|
|
*/
|
|
.global dereference_seg_base
|
|
|
|
dereference_seg_base:
|
|
mov %gs:(0), %rax
|
|
ret
|
|
|
|
.global test_page
|
|
.global test_syscall_insn
|
|
|
|
.pushsection ".text", "ax"
|
|
.balign 4096
|
|
test_page: .globl test_page
|
|
.fill 4094,1,0xcc
|
|
|
|
test_syscall_insn:
|
|
syscall
|
|
|
|
.ifne . - test_page - 4096
|
|
.error "test page is not one page long"
|
|
.endif
|
|
.popsection
|
|
|
|
.section .note.GNU-stack,"",%progbits
|