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comparison usr/src/cmd/abi/spectrans/spec2trace/linkage.c @ 0:c9caec207d52 b86

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Initial porting based on b86
author Koji Uno <koji.uno@sun.com>
date Tue, 02 Jun 2009 18:56:50 +0900
parents
children 1a15d5aaf794
comparison
equal deleted inserted replaced
-1:000000000000 0:c9caec207d52
1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright (c) 1997-1999 by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27 #pragma ident "@(#)linkage.c 1.3 05/06/08 SMI"
28
29
30 #include <stdio.h>
31 #include <unistd.h>
32 #include <sys/types.h>
33 #include "parser.h"
34 #include "trace.h"
35 #include "util.h"
36 #include "db.h"
37 #include "symtab.h"
38 #include "io.h"
39 #include "printfuncs.h"
40 #include "errlog.h"
41 #include "parseproto.h"
42
43 static void generate_interface_predeclaration(char *, ENTRY *);
44 static void generate_linkage_function(char *, char *);
45
46
47 /*
48 * generate_linkage -- make code for the linkage part of an individual
49 * interface. Assumes Bodyfp.
50 */
51 void
52 generate_linkage(ENTRY *function)
53 {
54 char *library_name = db_get_current_library(),
55 *function_name;
56 char composite_name[MAXLINE];
57
58 errlog(BEGIN, "generate_linkage() {");
59
60 function_name = name_of(function);
61 (void) snprintf(composite_name, sizeof (composite_name),
62 "%s_%s", library_name, function_name);
63
64 /* Print the predeclaration of the interceptor. */
65 generate_interface_predeclaration(composite_name, function);
66 /* Collect things we'll use more than once. */
67
68 /* Next the struct used to pass parameters. */
69 (void) fprintf(Bodyfp, "static abisym_t __abi_%s_%s_sym;\n",
70 library_name, function_name);
71
72 /* The linkage function, */
73 generate_linkage_function(library_name, function_name);
74
75 (void) fputs("\n\n", Bodyfp);
76 errlog(END, "}");
77 }
78
79
80 /*
81 * generate_interface_predeclaration -- make things know so the compiler
82 * won't kak.
83 */
84 static void
85 generate_interface_predeclaration(char *composite_name, ENTRY *function)
86 {
87 decl_t *pp;
88 char *p = symtab_get_prototype();
89 char buf[BUFSIZ];
90
91 (void) fprintf(Bodyfp, "\n/* from \"%s\", line %d */\n",
92 symtab_get_filename(), line_of(function));
93 (void) fprintf(Bodyfp, "static ");
94
95 if (p[strlen(p)-1] != ';')
96 (void) snprintf(buf, BUFSIZ, "%s;", strnormalize(p));
97 else
98 (void) snprintf(buf, BUFSIZ, "%s", strnormalize(p));
99
100 decl_Parse(buf, &pp);
101 decl_AddArgNames(pp);
102 symtab_set_prototype(decl_ToString(buf, DTS_DECL, pp, composite_name));
103 (void) fprintf(Bodyfp, "%s;\n", symtab_get_prototype());
104 decl_Destroy(pp);
105 }
106
107
108
109 /*
110 * generate_linkage_function -- The linkage function itself.
111 */
112 static void
113 generate_linkage_function(char *lib, char *func)
114 {
115 (void) fprintf(Bodyfp,
116 "void *__abi_%s_%s(void *real, int vflag) { \n", lib, func);
117 (void) fprintf(Bodyfp, " ABI_REAL(%s, %s) = real;\n", lib, func);
118 (void) fprintf(Bodyfp, " ABI_VFLAG(%s, %s) = vflag;\n", lib, func);
119 (void) fprintf(Bodyfp,
120 " return ((void *) %s_%s);\n}\n", lib, func);
121 }