1/* 2 * Copyright (c) 1983 Regents of the University of California. 3 * All rights reserved. The Berkeley software License Agreement 4 * specifies the terms and conditions for redistribution. 5 */ 6 7#ifdef SYSLIBC_SCCS 8_sccsid:.asciz "@(#)sigreturn.s 5.1 (Berkeley) 07/02/86" 9#endif SYSLIBC_SCCS 10 11#include "SYS.h" 12 13/* 14 * We must preserve the state of the registers as the user has set them up. 15 */ 16#ifdef PROF 17#define POPR(r) movl (sp)+,r 18#undef ENTRY 19#define ENTRY(x) \ 20 .globl _/**/x; .align 2; _/**/x: .word 0; \ 21 pushl r0; pushl r1; pushl r2; pushl r3; pushl r4; pushl r5; \ 22 .data; 1:; .long 0; .text; pushl $1b; callf $8,mcount; \ 23 POPR(r5); POPR(r4); POPR(r3); POPR(r2); POPR(r1); POPR(r0); 24#endif PROF 25 26SYSCALL(sigreturn) 27 ret 28