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/*
* libpulp - User-space Livepatching Library
*
* Copyright (C) 2017-2024 SUSE Software Solutions GmbH
*
* This file is part of libpulp.
*
* libpulp is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* libpulp is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with libpulp. If not, see <http://www.gnu.org/licenses/>.
*/
/* Prevent the stack from being needlessly set to executable. */
.section .note.GNU-stack,"",%progbits
.section .text,"ax",@progbits
/*
* The functions below are the entry points into libpulp, which are
* accessed from libpulp's tools, such as the trigger tool. The two
* nops here is to take into account syscall restarting by the kernel.
*/
.global __ulp_revert_all
nop
nop
__ulp_revert_all:
nop
nop
addis 2, 12, .TOC.-__ulp_revert_all@ha
addi 2, 2, .TOC.-__ulp_revert_all@l
mflr %r0
std %r0,16(%r1)
stdu %r1,-32(%r1)
bl __ulp_revert_patches_from_lib
nop
addi %r1,%r1,32
ld %r0,16(%r1)
mtlr %r0
trap
.globl __ulp_trigger
.type __ulp_trigger, @function
nop
nop
__ulp_trigger:
nop
nop
addis 2, 12, .TOC.-__ulp_trigger@ha
addi 2, 2, .TOC.-__ulp_trigger@l
#.localentry __ulp_trigger,.-__ulp_trigger
mflr %r0
std %r0,16(%r1)
stdu %r1,-32(%r1)
bl __ulp_apply_patch
nop
addi %r1,%r1,32
ld %r0,16(%r1)
mtlr %r0
trap
.global __ulp_check_patched
nop
nop
__ulp_check_patched:
nop
nop
addis 2, 12, .TOC.-__ulp_check_patched@ha
addi 2, 2, .TOC.-__ulp_check_patched@l
mflr %r0
std %r0,16(%r1)
stdu %r1,-32(%r1)
bl __ulp_check_applied_patch
nop
addi %r1,%r1,32
ld %r0,16(%r1)
mtlr %r0
trap
.global __ulp_get_global_universe
nop
nop
__ulp_get_global_universe:
nop
nop
addis 2, 12, .TOC.-__ulp_get_global_universe@ha
addi 2, 2, .TOC.-__ulp_get_global_universe@l
mflr %r0
std %r0,16(%r1)
stdu %r1,-32(%r1)
bl __ulp_get_global_universe_value
nop
addi %r1,%r1,32
ld %r0,16(%r1)
mtlr %r0
trap
.global __ulp_enable_or_disable_patching
nop
nop
__ulp_enable_or_disable_patching:
nop
nop
addis 2, 12, .TOC.-__ulp_enable_or_disable_patching@ha
addi 2, 2, .TOC.-__ulp_enable_or_disable_patching@l
mflr %r0
std %r0,16(%r1)
stdu %r1,-32(%r1)
bl ulp_enable_or_disable_patching
nop
addi %r1,%r1,32
ld %r0,16(%r1)
mtlr %r0
trap
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