2 // Copyright (c) 2016 - 2017, ARM Limited. All rights reserved.
4 // This program and the accompanying materials
5 // are licensed and made available under the terms and conditions of the BSD License
6 // which accompanies this distribution. The full text of the license may be found at
7 // http://opensource.org/licenses/bsd-license.php
9 // THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
10 // WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
17 GCC_ASM_EXPORT(ArmCallSvc)
20 // r0 will be popped just after the SVC call
23 // Load the SVC arguments values into the appropriate registers
28 // Load the ARM_SVC_ARGS structure address from the stack into r8
31 // Load the SVC returned values into the appropriate registers
32 // A SVC call can return up to 4 values - we do not need to store back r4-r7.
37 // Restore the registers r4-r8