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 --- 20 unchanged lines hidden (view full) --- 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 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 * @(#)SYS.h 5.5 (Berkeley) 5/7/91 |
37 * $FreeBSD: head/lib/libc/amd64/SYS.h 126107 2004-02-22 02:11:39Z peter $ |
38 */ 39 40#include <sys/syscall.h> 41#include <machine/asm.h> 42 43#ifdef PIC |
44#define RSYSCALL(x) ENTRY(__CONCAT(__sys_,x)); \ |
45 .weak CNAME(x); \ 46 .set CNAME(x),CNAME(__CONCAT(__sys_,x)); \ 47 .weak CNAME(__CONCAT(_,x)); \ 48 .set CNAME(__CONCAT(_,x)),CNAME(__CONCAT(__sys_,x)); \ |
49 mov __CONCAT($SYS_,x),%rax; KERNCALL; jb 2f; ret; \ 50 2: movq PIC_GOT(HIDENAME(cerror)),%rcx; jmp *%rcx |
51#else |
52#define RSYSCALL(x) ENTRY(__CONCAT(__sys_,x)); \ |
53 .weak CNAME(x); \ 54 .set CNAME(x),CNAME(__CONCAT(__sys_,x)); \ 55 .weak CNAME(__CONCAT(_,x)); \ 56 .set CNAME(__CONCAT(_,x)),CNAME(__CONCAT(__sys_,x)); \ |
57 mov __CONCAT($SYS_,x),%rax; KERNCALL; jb 2f; ret; \ 58 2: jmp HIDENAME(cerror) |
59#endif 60 |
61#define PSEUDO(x) ENTRY(__CONCAT(__sys_,x)); \ 62 .weak CNAME(__CONCAT(_,x)); \ 63 .set CNAME(__CONCAT(_,x)),CNAME(__CONCAT(__sys_,x)); \ 64 mov __CONCAT($SYS_,x),%rax; KERNCALL; ret 65 66#define KERNCALL movq %rcx, %r10; syscall |