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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libc/dlfcn/dlfcn_stubs.c	Lines:	0	14	0.0 %
Date:	2017-11-13	Branches:	0	2	0.0 %


/*	$OpenBSD: dlfcn_stubs.c,v 1.14 2016/09/06 18:49:34 guenther Exp $	*/

/*
 * Copyright (c) 1998 Per Fogelstrom, Opsycon AB
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 */

#include <sys/types.h>
#include <stddef.h>
#include <link.h>

#include "init.h"

/*
 *	All functions here are just stubs that will be overridden
 *	by the real functions in ld.so when dynamic loading is
 *	performed at exec. The symbols here are provided as a link
 *	helper so we can link a program using the dl functions
 *	without getting any unresolved references.
 */

void	*dlopen(const char *libname, int how) __attribute__((weak));
int	 dlclose(void *handle) __attribute__((weak));
void	*dlsym(void *handle, const char *name) __attribute__((weak));
int	 dlctl(void *handle, int command, void *data) __attribute__((weak));
char 	*dlerror(void) __attribute__((weak));

struct dl_info;
int	dladdr(const void *addr, struct dl_info *info) __attribute__((weak));

int	 dl_iterate_phdr(int (*callback)(struct dl_phdr_info *, size_t, void *),	    void *date) __attribute__((weak));

#include <stdio.h>

void *
dlopen(const char *libname, int how)
{
	printf("Wrong dl symbols!\n");
	return NULL;
}

int
dlclose(void *handle)
{
	printf("Wrong dl symbols!\n");
	return 0;
}

void *
dlsym(void *handle, const char *name)
{
	printf("Wrong dl symbols!\n");
	return NULL;
}

int
dlctl(void *handle, int command, void *data)
{
	return -1;
}

char *
dlerror(void)
{
	return "Wrong dl symbols!\n";
}

int
dl_iterate_phdr(int (*callback)(struct dl_phdr_info *, size_t, void *),
	void *data)
{
#ifndef PIC
	if (_static_phdr_info.dlpi_phdr != NULL)
		return callback(&_static_phdr_info, sizeof(_static_phdr_info),
		    data);
#endif /* !PIC */
	return -1;
}

int
dladdr(const void *addr, struct dl_info *info)
{
	printf("Wrong dl symbols!\n");
	return -1;
}

/* Thread Local Storage argument structure */
typedef struct {
	unsigned long int ti_module;
	unsigned long int ti_offset;
} tls_index;

void	*__tls_get_addr(tls_index *) __attribute__((weak));
#ifdef __i386
void	*___tls_get_addr(tls_index *) __attribute__((weak, __regparm__(1)));
#endif

#if defined(__amd64) || defined(__i386) || defined(__sparc64)
void *
__tls_get_addr(tls_index *ti)
{
	return NULL;
}

#ifdef __i386
__attribute__((__regparm__(1))) void *
___tls_get_addr(tls_index *ti)
{
	return NULL;
}
#endif /* __i386 */
#endif /* arch with TLS support enabled */


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: dlfcn_stubs.c,v 1.14 2016/09/06 18:49:34 guenther Exp $ */
2
3			/*
4			* Copyright (c) 1998 Per Fogelstrom, Opsycon AB
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:
9			* 1. Redistributions of source code must retain the above copyright
10			* notice, this list of conditions and the following disclaimer.
11			* 2. Redistributions in binary form must reproduce the above copyright
12			* notice, this list of conditions and the following disclaimer in the
13			* documentation and/or other materials provided with the distribution.
14			*
15			* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
16			* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17			* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18			* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
19			* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25			* SUCH DAMAGE.
26			*
27			*/
28
29			#include <sys/types.h>
30			#include <stddef.h>
31			#include <link.h>
32
33			#include "init.h"
34
35			/*
36			* All functions here are just stubs that will be overridden
37			* by the real functions in ld.so when dynamic loading is
38			* performed at exec. The symbols here are provided as a link
39			* helper so we can link a program using the dl functions
40			* without getting any unresolved references.
41			*/
42
43			void dlopen(const char libname, int how) __attribute__((weak));
44			int dlclose(void *handle) __attribute__((weak));
45			void dlsym(void handle, const char *name) __attribute__((weak));
46			int dlctl(void handle, int command, void data) __attribute__((weak));
47			char *dlerror(void) __attribute__((weak));
48
49			struct dl_info;
50			int dladdr(const void addr, struct dl_info info) __attribute__((weak));
51
52			int dl_iterate_phdr(int (callback)(struct dl_phdr_info , size_t, void ), void date) __attribute__((weak));
53
54			#include <stdio.h>
55
56			void *
57			dlopen(const char *libname, int how)
58			{
59			printf("Wrong dl symbols!\n");
60			return NULL;
61			}
62
63			int
64			dlclose(void *handle)
65			{
66			printf("Wrong dl symbols!\n");
67			return 0;
68			}
69
70			void *
71			dlsym(void handle, const char name)
72			{
73			printf("Wrong dl symbols!\n");
74			return NULL;
75			}
76
77			int
78			dlctl(void handle, int command, void data)
79			{
80			return -1;
81			}
82
83			char *
84			dlerror(void)
85			{
86			return "Wrong dl symbols!\n";
87			}
88
89			int
90			dl_iterate_phdr(int (callback)(struct dl_phdr_info , size_t, void *),
91			void *data)
92			{
93			#ifndef PIC
94			if (_static_phdr_info.dlpi_phdr != NULL)
95			return callback(&_static_phdr_info, sizeof(_static_phdr_info),
96			data);
97			#endif /* !PIC */
98			return -1;
99			}
100
101			int
102			dladdr(const void addr, struct dl_info info)
103			{
104			printf("Wrong dl symbols!\n");
105			return -1;
106			}
107
108			/* Thread Local Storage argument structure */
109			typedef struct {
110			unsigned long int ti_module;
111			unsigned long int ti_offset;
112			} tls_index;
113
114			void __tls_get_addr(tls_index ) __attribute__((weak));
115			#ifdef __i386
116			void ___tls_get_addr(tls_index ) __attribute__((weak, __regparm__(1)));
117			#endif
118
119			#if defined(__amd64) \|\| defined(__i386) \|\| defined(__sparc64)
120			void *
121			__tls_get_addr(tls_index *ti)
122			{
123			return NULL;
124			}
125
126			#ifdef __i386
127			__attribute__((__regparm__(1))) void *
128			___tls_get_addr(tls_index *ti)
129			{
130			return NULL;
131			}
132			#endif /* __i386 */
133			#endif /* arch with TLS support enabled */