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

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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