1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate ! 23*0Sstevel@tonic-gate ! "@(#)SYS.h 1.14 88/02/08" 24*0Sstevel@tonic-gate ! Copyright (c) 1986, 1996 by Sun Microsystems, Inc. 25*0Sstevel@tonic-gate ! All rights reserved. 26*0Sstevel@tonic-gate ! 27*0Sstevel@tonic-gate 28*0Sstevel@tonic-gate #include <sys/syscall.h> 29*0Sstevel@tonic-gate #include <machine/asm_linkage.h> 30*0Sstevel@tonic-gate #include "PIC.h" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #define SV_ERESTART 91 /* ERESTART is returned by the kernel for 33*0Sstevel@tonic-gate restartable system calls */ 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate #define WINDOWSIZE (16*4) 36*0Sstevel@tonic-gate 37*0Sstevel@tonic-gate .global .cerror 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate #define SYSCALL(x) \ 40*0Sstevel@tonic-gate ENTRY(x); \ 41*0Sstevel@tonic-gate mov SYS_/**/x, %g1; \ 42*0Sstevel@tonic-gate t 8; \ 43*0Sstevel@tonic-gate CERROR(o5) 44*0Sstevel@tonic-gate 45*0Sstevel@tonic-gate #define BSDSYSCALL(x) \ 46*0Sstevel@tonic-gate ENTRY(_/**/x); \ 47*0Sstevel@tonic-gate mov SYS_/**/x, %g1; \ 48*0Sstevel@tonic-gate t 8; \ 49*0Sstevel@tonic-gate CERROR(o5) 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate /* 52*0Sstevel@tonic-gate * SYSREENTRY provides the entry sequence for restartable system calls. 53*0Sstevel@tonic-gate */ 54*0Sstevel@tonic-gate #define SYSREENTRY(x) \ 55*0Sstevel@tonic-gate ENTRY(x); \ 56*0Sstevel@tonic-gate st %o0,[%sp+68]; \ 57*0Sstevel@tonic-gate .restart_/**/x: 58*0Sstevel@tonic-gate 59*0Sstevel@tonic-gate #define PSEUDO(x, y) \ 60*0Sstevel@tonic-gate ENTRY(x); \ 61*0Sstevel@tonic-gate mov SYS_/**/y, %g1; \ 62*0Sstevel@tonic-gate t 8; 63*0Sstevel@tonic-gate 64*0Sstevel@tonic-gate /* 65*0Sstevel@tonic-gate * SYSCALL_RESTART provides the most common restartable system call sequence. 66*0Sstevel@tonic-gate */ 67*0Sstevel@tonic-gate #define SYSCALL_RESTART(x) \ 68*0Sstevel@tonic-gate SYSREENTRY(x); \ 69*0Sstevel@tonic-gate mov SYS_/**/x, %g1; \ 70*0Sstevel@tonic-gate t 8; \ 71*0Sstevel@tonic-gate SYSRESTART(.restart_/**/x) 72*0Sstevel@tonic-gate 73*0Sstevel@tonic-gate /* 74*0Sstevel@tonic-gate * SYSREENTRY provides the entry sequence for restartable system calls. 75*0Sstevel@tonic-gate */ 76*0Sstevel@tonic-gate #define SYSREENTRY(x) \ 77*0Sstevel@tonic-gate ENTRY(x); \ 78*0Sstevel@tonic-gate st %o0,[%sp+68]; \ 79*0Sstevel@tonic-gate .restart_/**/x: 80*0Sstevel@tonic-gate 81*0Sstevel@tonic-gate /* 82*0Sstevel@tonic-gate * SYSRESTART provides the error handling sequence for restartable 83*0Sstevel@tonic-gate * system calls. 84*0Sstevel@tonic-gate */ 85*0Sstevel@tonic-gate #ifdef PIC 86*0Sstevel@tonic-gate #define SYSRESTART(x) \ 87*0Sstevel@tonic-gate bcc noerr; \ 88*0Sstevel@tonic-gate cmp %o0, SV_ERESTART; \ 89*0Sstevel@tonic-gate be,a x; \ 90*0Sstevel@tonic-gate ld [%sp+68], %o0; \ 91*0Sstevel@tonic-gate PIC_SETUP(o5); \ 92*0Sstevel@tonic-gate ld [%o5 + .cerror], %o5; \ 93*0Sstevel@tonic-gate jmp %o5; \ 94*0Sstevel@tonic-gate .empty; \ 95*0Sstevel@tonic-gate noerr: nop ; 96*0Sstevel@tonic-gate #else 97*0Sstevel@tonic-gate #define SYSRESTART(x) \ 98*0Sstevel@tonic-gate bcc noerr; \ 99*0Sstevel@tonic-gate cmp %o0, SV_ERESTART; \ 100*0Sstevel@tonic-gate be,a x; \ 101*0Sstevel@tonic-gate ld [%sp+68], %o0; \ 102*0Sstevel@tonic-gate ba .cerror; \ 103*0Sstevel@tonic-gate .empty; \ 104*0Sstevel@tonic-gate noerr: nop ; 105*0Sstevel@tonic-gate #endif 106*0Sstevel@tonic-gate 107*0Sstevel@tonic-gate #define RET retl; nop; 108*0Sstevel@tonic-gate 109*0Sstevel@tonic-gate #ifdef PIC 110*0Sstevel@tonic-gate #define CERROR(free_reg) \ 111*0Sstevel@tonic-gate bcc noerr; \ 112*0Sstevel@tonic-gate PIC_SETUP(free_reg); \ 113*0Sstevel@tonic-gate .empty; \ 114*0Sstevel@tonic-gate ld [%free_reg+ .cerror],%free_reg; \ 115*0Sstevel@tonic-gate jmp %free_reg; \ 116*0Sstevel@tonic-gate .empty; \ 117*0Sstevel@tonic-gate noerr: nop; 118*0Sstevel@tonic-gate #else 119*0Sstevel@tonic-gate #define CERROR(free_reg) \ 120*0Sstevel@tonic-gate bcc noerr; \ 121*0Sstevel@tonic-gate .empty; \ 122*0Sstevel@tonic-gate sethi %hi(.cerror), %free_reg;\ 123*0Sstevel@tonic-gate or %free_reg, %lo(.cerror), %free_reg;\ 124*0Sstevel@tonic-gate jmp %free_reg;\ 125*0Sstevel@tonic-gate .empty;\ 126*0Sstevel@tonic-gate noerr: nop; 127*0Sstevel@tonic-gate #endif 128