| SYS.h (13545) | SYS.h (15634) |
|---|---|
| 1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 21 unchanged lines hidden (view full) --- 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: @(#)SYS.h 5.5 (Berkeley) 5/7/91 37 * | 1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 21 unchanged lines hidden (view full) --- 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: @(#)SYS.h 5.5 (Berkeley) 5/7/91 37 * |
| 38 * $Id: SYS.h,v 1.2 1994/08/05 01:17:57 wollman Exp $ | 38 * $Id: SYS.h,v 1.3 1996/01/22 00:00:51 julian Exp $ |
| 39 */ 40 41#include <sys/syscall.h> 42#include "DEFS.h" 43 44#ifdef PIC 45#define PIC_PROLOGUE \ 46 pushl %ebx; \ --- 9 unchanged lines hidden (view full) --- 56#else 57#define PIC_PROLOGUE 58#define PIC_EPILOGUE 59#define PIC_PLT(x) x 60#define PIC_GOT(x) x 61#define PIC_GOTOFF(x) x 62#endif 63 | 39 */ 40 41#include <sys/syscall.h> 42#include "DEFS.h" 43 44#ifdef PIC 45#define PIC_PROLOGUE \ 46 pushl %ebx; \ --- 9 unchanged lines hidden (view full) --- 56#else 57#define PIC_PROLOGUE 58#define PIC_EPILOGUE 59#define PIC_PLT(x) x 60#define PIC_GOT(x) x 61#define PIC_GOTOFF(x) x 62#endif 63 |
| 64#define SYSCALL(x) 2: jmp cerror; ENTRY(x); lea SYS_/**/x,%eax; LCALL(7,0); jb 2b | 64#define SYSCALL(x) 2: PIC_PROLOGUE; jmp PIC_PLT(HIDENAME(cerror)); ENTRY(x); lea __CONCAT(SYS_,x),%eax; KERNCALL; jb 2b |
| 65#define RSYSCALL(x) SYSCALL(x); ret 66 | 65#define RSYSCALL(x) SYSCALL(x); ret 66 |
| 67#ifdef _THREAD_SAFE | |
| 68/* | 67/* |
| 69 * Support for user-space threads which require that some syscalls be 70 * private to the threaded library. | 68 * For the thread_safe versions, we prepend _thread_sys_ to the function 69 * name so that the 'C' wrapper can go around the real name. |
| 71 */ | 70 */ |
| 72#define PSYSCALL(x) 2: jmp cerror; ENTRY(_thread_sys_/**/x); lea SYS_/**/x,%eax; LCALL(7,0); jb 2b 73#else 74/* 75 * The non-threaded library defaults to traditional syscalls where 76 * the function name matches the syscall name. 77 */ 78#define PSYSCALL(x) SYSCALL(x) | 71#ifdef _THREAD_SAFE /* in case */ 72#define PSYSCALL(x,y) 2: PIC_PROLOGUE; jmp PIC_PLT(HIDENAME(cerror)); ENTRY(y); lea __CONCAT(SYS_,x),%eax; KERNCALL; jb 2b 73#define PRSYSCALL(x,y) PSYSCALL(x,y); ret |
| 79#endif | 74#endif |
| 80#define PRSYSCALL(x) PSYSCALL(x); ret 81#define PSEUDO(x,y) ENTRY(x); lea SYS_/**/y, %eax; ; LCALL(7,0); ret 82#define CALL(x,y) call _/**/y; addl $4*x,%esp | 75 76#define PSEUDO(x,y) ENTRY(x); lea __CONCAT(SYS_,y), %eax; KERNCALL; ret 77#define CALL(x,y) call CNAME(y); addl $4*x,%esp |
| 83/* gas fucks up offset -- although we don't currently need it, do for BCS */ 84#define LCALL(x,y) .byte 0x9a ; .long y; .word x 85 | 78/* gas fucks up offset -- although we don't currently need it, do for BCS */ 79#define LCALL(x,y) .byte 0x9a ; .long y; .word x 80 |
| 86#define ASMSTR .asciz | 81#ifdef __ELF__ 82#define KERNCALL int $0x80 /* Faster */ 83#else 84#define KERNCALL LCALL(7,0) /* The old way */ 85#endif |
| 87 | 86 |
| 88 .globl cerror | 87#define ASMSTR .asciz |