1/* Copyright (C) 1993-2022 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, see 16 <https://www.gnu.org/licenses/>. */ 17 18#include <sysdep.h> 19 20ENTRY (syscall) 21 popl %ecx /* Pop return address into %ecx. */ 22 popl %eax /* Pop syscall number into %eax. */ 23 pushl %ecx /* Push back return address. */ 24 .byte 0x9a, 0, 0, 0, 0, 7, 0 /* lcall $7, $0 -- gas bug */ 25 popl %ecx /* Pop return address into %ecx. */ 26 pushl $0 /* Push back dumb syscall number. */ 27 pushl %ecx /* Push back return address. */ 28 ret 29END (syscall) 30