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svr4_util.h (150663) svr4_util.h (160249)
1/*-
2 * Copyright (c) 1998 Mark Newton
3 * Copyright (c) 1994 Christos Zoulas
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:

--- 11 unchanged lines hidden (view full) ---

20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
1/*-
2 * Copyright (c) 1998 Mark Newton
3 * Copyright (c) 1994 Christos Zoulas
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:

--- 11 unchanged lines hidden (view full) ---

20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $FreeBSD: head/sys/compat/svr4/svr4_util.h 150663 2005-09-28 07:03:03Z rwatson $
28 * $FreeBSD: head/sys/compat/svr4/svr4_util.h 160249 2006-07-10 21:38:17Z jhb $
29 */
30
31#ifndef _SVR4_UTIL_H_
32#define _SVR4_UTIL_H_
33
34/*#include <compat/common/compat_util.h>*/
35#include <vm/vm.h>
36#include <vm/vm_param.h>

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42#include <sys/uio.h>
43
44#ifdef DEBUG_SVR4
45#define DPRINTF(a) uprintf a;
46#else
47#define DPRINTF(a)
48#endif
49
29 */
30
31#ifndef _SVR4_UTIL_H_
32#define _SVR4_UTIL_H_
33
34/*#include <compat/common/compat_util.h>*/
35#include <vm/vm.h>
36#include <vm/vm_param.h>

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42#include <sys/uio.h>
43
44#ifdef DEBUG_SVR4
45#define DPRINTF(a) uprintf a;
46#else
47#define DPRINTF(a)
48#endif
49
50
51static __inline caddr_t stackgap_init(void);
52static __inline void *stackgap_alloc(caddr_t *, size_t);
53
54static __inline caddr_t
55stackgap_init()
56{
57#define szsigcode (*(curthread->td_proc->p_sysent->sv_szsigcode))
58 return (caddr_t)(((caddr_t)PS_STRINGS) - szsigcode - SPARE_USRSPACE);
59}
60
61static __inline void *
62stackgap_alloc(sgp, sz)
63 caddr_t *sgp;
64 size_t sz;
65{
66 void *p = (void *) *sgp;
67 sz = ALIGN(sz);
68 if (*sgp + sz > (caddr_t)(PS_STRINGS - szsigcode))
69 return NULL;
70 *sgp += sz;
71 return p;
72}
73
74int svr4_emul_find(struct thread *, char *, enum uio_seg, char **, int);
75
76#define CHECKALT(td, upath, pathp, i) \
77 do { \
78 int _error; \
79 \
80 _error = svr4_emul_find(td, upath, UIO_USERSPACE, pathp, i); \
81 if (*(pathp) == NULL) \
82 return (_error); \
83 } while (0)
84
85#define CHECKALTEXIST(td, upath, pathp) CHECKALT(td, upath, pathp, 0)
86#define CHECKALTCREAT(td, upath, pathp) CHECKALT(td, upath, pathp, 1)
87
88#endif /* !_SVR4_UTIL_H_ */
50int svr4_emul_find(struct thread *, char *, enum uio_seg, char **, int);
51
52#define CHECKALT(td, upath, pathp, i) \
53 do { \
54 int _error; \
55 \
56 _error = svr4_emul_find(td, upath, UIO_USERSPACE, pathp, i); \
57 if (*(pathp) == NULL) \
58 return (_error); \
59 } while (0)
60
61#define CHECKALTEXIST(td, upath, pathp) CHECKALT(td, upath, pathp, 0)
62#define CHECKALTCREAT(td, upath, pathp) CHECKALT(td, upath, pathp, 1)
63
64#endif /* !_SVR4_UTIL_H_ */