diff options
Diffstat (limited to '')
-rw-r--r-- | cpukit/score/cpu/i386/cpu_asm.S | 34 |
1 files changed, 29 insertions, 5 deletions
diff --git a/cpukit/score/cpu/i386/cpu_asm.S b/cpukit/score/cpu/i386/cpu_asm.S index 23360959f5..bb5c096e72 100644 --- a/cpukit/score/cpu/i386/cpu_asm.S +++ b/cpukit/score/cpu/i386/cpu_asm.S @@ -1,14 +1,36 @@ -/* cpu_asm.s +/* SPDX-License-Identifier: BSD-2-Clause */ + +/** + * @file * * This file contains all assembly code for the Intel i386 implementation * of RTEMS. - * + */ + +/* * COPYRIGHT (c) 1989-1999. * On-Line Applications Research Corporation (OAR). * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. */ #ifdef HAVE_CONFIG_H @@ -45,11 +67,13 @@ .p2align 1 PUBLIC (_CPU_Context_switch) + PUBLIC (_CPU_Context_switch_no_return) .set RUNCONTEXT_ARG, 4 /* save context argument */ .set HEIRCONTEXT_ARG, 8 /* restore context argument */ SYM (_CPU_Context_switch): +SYM (_CPU_Context_switch_no_return): movl RUNCONTEXT_ARG(esp),eax /* eax = running threads context */ GET_SELF_CPU_CONTROL edx /* edx has address for per_CPU information */ movl PER_CPU_ISR_DISPATCH_DISABLE(edx),ecx |