source: rtems/c/src/lib/librpc/xdr_array.c @ 4721cf1

4.104.114.84.95
Last change on this file since 4721cf1 was 4721cf1, checked in by Joel Sherrill <joel.sherrill@…>, on Dec 3, 1998 at 11:54:14 PM

Patch from Emmanuel Raguet <raguet@…> to add remote debug server
and RPC support to RTEMS. Thanks. :) Email follows:

Hello,

For Xmas, here is the Remote Debugger on RTEMS !

Here are 2 patches for the Remote Debugger on RTEMS for pc386 from Linux
host :

  • one for RTEMS it self,
  • one for GDB-4.17.

1/ RTEMS patch
--------------

This patch adds 2 libraries :

  • a simplified SUN RPC library
  • the Remote Debugger library

The configuration command is the following :
../rtems4/configure --target=i386-rtemself --enable-rtemsbsp=pc386
--enable-rdbg

The SUN RPC library is built only if networking is set.
The RDBG library is built if networking and enable-rdbg are set.

The function used to initialize the debugger is :

rtems_rdbg_initialize ();

A special function has been created to force a task to be
in a "debug" state : enterRdbg().
The use of this function is not mandatory.

2/ GDB-4.17 patch
-----------------

This patch create a new RTEMS target for GDB-4.17.

The configuration command is the following :
./configure --enable-shared --target=i386RTEMS

To connect to a target, use :

target rtems [your_site_address]

Then, attach the target using : attach 1

And... Debug ;)

You can obtain the original GDB-4.17 on
ftp://ftp.debian.org/debian/dists/stable/main/source/devel/gdb_4.17.orig.tar.gz

This has been tested from a Debian 2.0.1 linux host.

  • Property mode set to 100644
File size: 4.2 KB
Line 
1/* @(#)xdr_array.c      2.1 88/07/29 4.0 RPCSRC */
2/*
3 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
4 * unrestricted use provided that this legend is included on all tape
5 * media and as a part of the software program in whole or part.  Users
6 * may copy or modify Sun RPC without charge, but are not authorized
7 * to license or distribute it to anyone else except as part of a product or
8 * program developed by the user.
9 *
10 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
11 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
12 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
13 *
14 * Sun RPC is provided with no support and without any obligation on the
15 * part of Sun Microsystems, Inc. to assist in its use, correction,
16 * modification or enhancement.
17 *
18 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
19 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
20 * OR ANY PART THEREOF.
21 *
22 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
23 * or profits or other special, indirect and consequential damages, even if
24 * Sun has been advised of the possibility of such damages.
25 *
26 * Sun Microsystems, Inc.
27 * 2550 Garcia Avenue
28 * Mountain View, California  94043
29 */
30#if !defined(lint) && defined(SCCSIDS)
31static char sccsid[] = "@(#)xdr_array.c 1.10 87/08/11 Copyr 1984 Sun Micro";
32#endif
33
34/*
35 * xdr_array.c, Generic XDR routines impelmentation.
36 *
37 * Copyright (C) 1984, Sun Microsystems, Inc.
38 *
39 * These are the "non-trivial" xdr primitives used to serialize and de-serialize
40 * arrays.  See xdr.h for more info on the interface to xdr.
41 */
42
43
44#include <stdio.h>      /* printf */
45#include <string.h>     /* bcmp */
46#include <stdlib.h>     /* free */
47#include <rpc/types.h>
48#include <rpc/xdr.h>
49
50#define LASTUNSIGNED    ((u_int)0-1)
51
52
53/*
54 * XDR an array of arbitrary elements
55 * *addrp is a pointer to the array, *sizep is the number of elements.
56 * If addrp is NULL (*sizep * elsize) bytes are allocated.
57 * elsize is the size (in bytes) of each element, and elproc is the
58 * xdr procedure to call to handle each element of the array.
59 */
60bool_t
61xdr_array(xdrs, addrp, sizep, maxsize, elsize, elproc)
62        register XDR *xdrs;
63        caddr_t *addrp;         /* array pointer */
64        u_int *sizep;           /* number of elements */
65        u_int maxsize;          /* max numberof elements */
66        u_int elsize;           /* size in bytes of each element */
67        xdrproc_t elproc;       /* xdr routine to handle each element */
68{
69        register u_int i;
70        register caddr_t target = *addrp;
71        register u_int c;  /* the actual element count */
72        register bool_t stat = TRUE;
73        register u_int nodesize;
74
75        /* like strings, arrays are really counted arrays */
76        if (! xdr_u_int(xdrs, sizep)) {
77                return (FALSE);
78        }
79        c = *sizep;
80        if ((c > maxsize) && (xdrs->x_op != XDR_FREE)) {
81                return (FALSE);
82        }
83        nodesize = c * elsize;
84
85        /*
86         * if we are deserializing, we may need to allocate an array.
87         * We also save time by checking for a null array if we are freeing.
88         */
89        if (target == NULL)
90                switch (xdrs->x_op) {
91                case XDR_DECODE:
92                        if (c == 0)
93                                return (TRUE);
94                        *addrp = target = mem_alloc(nodesize);
95                        if (target == NULL) {
96                                (void) printf(
97                                        "xdr_array: out of memory\n");
98                                return (FALSE);
99                        }
100                        bzero(target, nodesize);
101                        break;
102
103                case XDR_FREE:
104                        return (TRUE);
105                default:
106                        break;
107                }
108       
109        /*
110         * now we xdr each element of array
111         */
112        for (i = 0; (i < c) && stat; i++) {
113                stat = (*elproc)(xdrs, target, LASTUNSIGNED);
114                target += elsize;
115        }
116
117        /*
118         * the array may need freeing
119         */
120        if (xdrs->x_op == XDR_FREE) {
121                mem_free(*addrp, nodesize);
122                *addrp = NULL;
123        }
124        return (stat);
125}
126
127/*
128 * xdr_vector():
129 *
130 * XDR a fixed length array. Unlike variable-length arrays,
131 * the storage of fixed length arrays is static and unfreeable.
132 * > basep: base of the array
133 * > size: size of the array
134 * > elemsize: size of each element
135 * > xdr_elem: routine to XDR each element
136 */
137bool_t
138xdr_vector(xdrs, basep, nelem, elemsize, xdr_elem)
139        register XDR *xdrs;
140        register char *basep;
141        register u_int nelem;
142        register u_int elemsize;
143        register xdrproc_t xdr_elem;   
144{
145        register u_int i;
146        register char *elptr;
147
148        elptr = basep;
149        for (i = 0; i < nelem; i++) {
150                if (! (*xdr_elem)(xdrs, elptr, LASTUNSIGNED)) {
151                        return(FALSE);
152                }
153                elptr += elemsize;
154        }
155        return(TRUE);   
156}
157
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