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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1997-1999 by Sun Microsystems, Inc.
* All rights reserved.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include "parser.h"
#include "trace.h"
#include "util.h"
#include "db.h"
#include "symtab.h"
#include "io.h"
#include "printfuncs.h"
#include "errlog.h"
#include "parseproto.h"
static void generate_interface_predeclaration(char *, ENTRY *);
static void generate_linkage_function(char *, char *);
/*
* generate_linkage -- make code for the linkage part of an individual
* interface. Assumes Bodyfp.
*/
void
generate_linkage(ENTRY *function)
{
char *library_name = db_get_current_library(),
*function_name;
char composite_name[MAXLINE];
errlog(BEGIN, "generate_linkage() {");
function_name = name_of(function);
(void) snprintf(composite_name, sizeof (composite_name),
"%s_%s", library_name, function_name);
/* Print the predeclaration of the interceptor. */
generate_interface_predeclaration(composite_name, function);
/* Collect things we'll use more than once. */
/* Next the struct used to pass parameters. */
(void) fprintf(Bodyfp, "static abisym_t __abi_%s_%s_sym;\n",
library_name, function_name);
/* The linkage function, */
generate_linkage_function(library_name, function_name);
(void) fputs("\n\n", Bodyfp);
errlog(END, "}");
}
/*
* generate_interface_predeclaration -- make things know so the compiler
* won't kak.
*/
static void
generate_interface_predeclaration(char *composite_name, ENTRY *function)
{
decl_t *pp;
char *p = symtab_get_prototype();
char buf[BUFSIZ];
(void) fprintf(Bodyfp, "\n/* from \"%s\", line %d */\n",
symtab_get_filename(), line_of(function));
(void) fprintf(Bodyfp, "static ");
if (p[strlen(p)-1] != ';')
(void) snprintf(buf, BUFSIZ, "%s;", strnormalize(p));
else
(void) snprintf(buf, BUFSIZ, "%s", strnormalize(p));
decl_Parse(buf, &pp);
decl_AddArgNames(pp);
symtab_set_prototype(decl_ToString(buf, DTS_DECL, pp, composite_name));
(void) fprintf(Bodyfp, "%s;\n", symtab_get_prototype());
decl_Destroy(pp);
}
/*
* generate_linkage_function -- The linkage function itself.
*/
static void
generate_linkage_function(char *lib, char *func)
{
(void) fprintf(Bodyfp,
"void *__abi_%s_%s(void *real, int vflag) { \n", lib, func);
(void) fprintf(Bodyfp, " ABI_REAL(%s, %s) = real;\n", lib, func);
(void) fprintf(Bodyfp, " ABI_VFLAG(%s, %s) = vflag;\n", lib, func);
(void) fprintf(Bodyfp,
" return ((void *) %s_%s);\n}\n", lib, func);
}
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