78 lines
2.8 KiB
ArmAsm
78 lines
2.8 KiB
ArmAsm
/*
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ChibiOS - Copyright (C) 2006,2007,2008,2009,2010,2011,2012,2013,2014,
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2015,2016,2017,2018,2019,2020,2021,2022 Giovanni Di Sirio.
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This file is part of ChibiOS.
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ChibiOS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation version 3 of the License.
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ChibiOS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*===========================================================================*/
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/* Module constants. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Module pre-compile time settings. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Code section. */
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/*===========================================================================*/
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#if !defined(__DOXYGEN__)
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.syntax unified
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.cpu cortex-m3
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.thumb
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.bss
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.align 2
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.global __callelf_data
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__callelf_data:
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.ds.l 1
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.ds.l 1
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.text
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/* Call elf trampoline function.*/
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.align 2
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.thumb_func
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.global __callelf
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__callelf:
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ldr r4, =__callelf_data
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str sp, [r4, #0]
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str lr, [r4, #4]
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/* Setting up the call stack for the loaded module.*/
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ldr r5, [r0, #24] /* Placed by runelf(). */
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mov sp, r5
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push {r1, r2, r3, r5} /* argc, argv, envp, top. */
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ldr r6, [r0, #12]
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bx r6 /* Jumping to entry point. */
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/* Call elf return code.*/
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.align 2
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.thumb_func
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.global __returnelf
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__returnelf:
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ldr r4, =__callelf_data
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ldmia r4, {r5, r6}
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mov sp, r5
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bx r6
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#endif /* !defined(__DOXYGEN__) */
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/** @} */
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