Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/csu/crtbeginS.c	Lines:	26	28	92.9 %
Date:	2017-11-13	Branches:	10	16	62.5 %


/*	$OpenBSD: crtbeginS.c,v 1.19 2017/02/19 21:39:32 guenther Exp $	*/
/*	$NetBSD: crtbegin.c,v 1.1 1996/09/12 16:59:03 cgd Exp $	*/

/*
 * Copyright (c) 1993 Paul Kranenburg
 * All rights reserved.
 *
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by Paul Kranenburg.
 * 4. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission
 *
 * 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.
 */

/*
 * Run-time module for GNU C++ compiled shared libraries.
 *
 * The linker constructs the following arrays of pointers to global
 * constructors and destructors. The first element contains the
 * number of pointers in each.
 * The tables are also null-terminated.
 */
#include <stdlib.h>

#include "md_init.h"
#include "os-note-elf.h"
#include "extern.h"

/*
 * java class registration hooks
 */

MD_DATA_SECTION_FLAGS_SYMBOL(".jcr", "aw", void *, __JCR_LIST__);

extern void _Jv_RegisterClasses (void *)
    __attribute__((weak));


/*
 * Include support for the __cxa_atexit/__cxa_finalize C++ abi for
 * gcc > 2.x. __dso_handle is NULL in the main program and a unique
 * value for each C++ shared library. For more info on this API, see:
 *
 *     http://www.codesourcery.com/cxx-abi/abi.html#dso-dtor
 */

void *__dso_handle = &__dso_handle;
__asm(".hidden  __dso_handle");

long __guard_local __dso_hidden __attribute__((section(".openbsd.randomdata")));

extern int __cxa_atexit(void (*)(void *), void *, void *) __attribute__((weak));
extern void __cxa_finalize(void *) __attribute__((weak));

int
atexit(void (*fn)(void))
{
	return (__cxa_atexit((void (*)(void *))fn, NULL, &__dso_handle));
}
asm(".hidden atexit");

/*
 * Ditto for pthread_atfork()
 */
int	_thread_atfork(void (*)(void), void (*)(void), void (*)(void), void *)
	    __attribute__((weak));

int
pthread_atfork(void (*prep)(void), void (*parent)(void), void (*child)(void))
{
	return (_thread_atfork(prep, parent, child, &__dso_handle));
}
/* hppa doesn't permit directives in first column, so space after newline */
asm(".hidden pthread_atfork\n .weak pthread_atfork");

MD_DATA_SECTION_SYMBOL_VALUE(".ctors", init_f, __CTOR_LIST__, -1);
MD_DATA_SECTION_SYMBOL_VALUE(".dtors", init_f, __DTOR_LIST__, -1);


static void
__ctors(void)
{
	unsigned long i = (unsigned long) __CTOR_LIST__[0];
	const init_f *p;

	if (i == -1)  {
		for (i = 1; __CTOR_LIST__[i] != NULL; i++)
			;
		i--;
	}
	p = __CTOR_LIST__ + i;
	while (i--)
		(**p--)();
}

static void
__dtors(void)
{
	const init_f *p = __DTOR_LIST__ + 1;

	while (*p)
		(**p++)();
}

void _init(void);
void _fini(void);
static void _do_init(void) __used;
static void _do_fini(void) __used;

MD_SECTION_PROLOGUE(".init", _init);

MD_SECTION_PROLOGUE(".fini", _fini);

MD_SECT_CALL_FUNC(".init", _do_init);
MD_SECT_CALL_FUNC(".fini", _do_fini);


void
_do_init(void)
{
	static int initialized;

	/*
	 * Call global constructors.
	 * Arrange to call global destructors at exit.
	 */
	if (!initialized) {
		initialized = 1;

		if (__JCR_LIST__[0] && _Jv_RegisterClasses)
			_Jv_RegisterClasses(__JCR_LIST__);
		__ctors();
	}
}

void
_do_fini(void)
{
	static int finalized;

	if (!finalized) {
		finalized = 1;

		if (__cxa_finalize != NULL)
			__cxa_finalize(__dso_handle);

		/*
		 * since the _init() function sets up the destructors to
		 * be called by atexit, do not call the destructors here.
		 */
		__dtors();
	}
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: crtbeginS.c,v 1.19 2017/02/19 21:39:32 guenther Exp $ */
2			/* $NetBSD: crtbegin.c,v 1.1 1996/09/12 16:59:03 cgd Exp $ */
3
4			/*
5			* Copyright (c) 1993 Paul Kranenburg
6			* All rights reserved.
7			*
8			* Redistribution and use in source and binary forms, with or without
9			* modification, are permitted provided that the following conditions
10			* are met:
11			* 1. Redistributions of source code must retain the above copyright
12			* notice, this list of conditions and the following disclaimer.
13			* 2. Redistributions in binary form must reproduce the above copyright
14			* notice, this list of conditions and the following disclaimer in the
15			* documentation and/or other materials provided with the distribution.
16			* 3. All advertising materials mentioning features or use of this software
17			* must display the following acknowledgement:
18			* This product includes software developed by Paul Kranenburg.
19			* 4. The name of the author may not be used to endorse or promote products
20			* derived from this software without specific prior written permission
21			*
22			* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23			* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24			* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25			* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26			* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27			* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28			* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29			* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30			* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31			* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32			*/
33
34			/*
35			* Run-time module for GNU C++ compiled shared libraries.
36			*
37			* The linker constructs the following arrays of pointers to global
38			* constructors and destructors. The first element contains the
39			* number of pointers in each.
40			* The tables are also null-terminated.
41			*/
42			#include <stdlib.h>
43
44			#include "md_init.h"
45			#include "os-note-elf.h"
46			#include "extern.h"
47
48			/*
49			* java class registration hooks
50			*/
51
52			MD_DATA_SECTION_FLAGS_SYMBOL(".jcr", "aw", void *, __JCR_LIST__);
53
54			extern void _Jv_RegisterClasses (void *)
55			__attribute__((weak));
56
57
58			/*
59			* Include support for the __cxa_atexit/__cxa_finalize C++ abi for
60			* gcc > 2.x. __dso_handle is NULL in the main program and a unique
61			* value for each C++ shared library. For more info on this API, see:
62			*
63			* http://www.codesourcery.com/cxx-abi/abi.html#dso-dtor
64			*/
65
66			void *__dso_handle = &__dso_handle;
67			__asm(".hidden __dso_handle");
68
69			long __guard_local __dso_hidden __attribute__((section(".openbsd.randomdata")));
70
71			extern int __cxa_atexit(void ()(void ), void , void ) __attribute__((weak));
72			extern void __cxa_finalize(void *) __attribute__((weak));
73
74			int
75			atexit(void (*fn)(void))
76			{
77		97672	return (__cxa_atexit((void ()(void ))fn, NULL, &__dso_handle));
78			}
79			asm(".hidden atexit");
80
81			/*
82			* Ditto for pthread_atfork()
83			*/
84			int _thread_atfork(void ()(void), void ()(void), void ()(void), void )
85			__attribute__((weak));
86
87			int
88			pthread_atfork(void (prep)(void), void (parent)(void), void (*child)(void))
89			{
90		8	return (_thread_atfork(prep, parent, child, &__dso_handle));
91			}
92			/* hppa doesn't permit directives in first column, so space after newline */
93			asm(".hidden pthread_atfork\n .weak pthread_atfork");
94
95			MD_DATA_SECTION_SYMBOL_VALUE(".ctors", init_f, __CTOR_LIST__, -1);
96			MD_DATA_SECTION_SYMBOL_VALUE(".dtors", init_f, __DTOR_LIST__, -1);
97
98
99			static void
100			__ctors(void)
101			{
102		34560	unsigned long i = (unsigned long) __CTOR_LIST__[0];
103			const init_f *p;
104
105	✓✗	17280	if (i == -1) {
106	✓✓	6910750	for (i = 1; __CTOR_LIST__[i] != NULL; i++)
107			;
108		17280	i--;
109		17280	}
110		17280	p = __CTOR_LIST__ + i;
111	✓✓	6910750	while (i--)
112		3438095	(**p--)();
113		17280	}
114
115			static void
116			__dtors(void)
117			{
118			const init_f *p = __DTOR_LIST__ + 1;
119
120	✗✓	216	while (*p)
121			(**p++)();
122		72	}
123
124			void _init(void);
125			void _fini(void);
126			static void _do_init(void) __used;
127			static void _do_fini(void) __used;
128
129			MD_SECTION_PROLOGUE(".init", _init);
130
131			MD_SECTION_PROLOGUE(".fini", _fini);
132
133			MD_SECT_CALL_FUNC(".init", _do_init);
134			MD_SECT_CALL_FUNC(".fini", _do_fini);
135
136
137			void
138			_do_init(void)
139			{
140			static int initialized;
141
142			/*
143			* Call global constructors.
144			* Arrange to call global destructors at exit.
145			*/
146	✓✗	34560	if (!initialized) {
147		17280	initialized = 1;
148
149	✗✓	17280	if (__JCR_LIST__[0] && _Jv_RegisterClasses)
150			_Jv_RegisterClasses(__JCR_LIST__);
151		17280	__ctors();
152		17280	}
153		17280	}
154
155			void
156			_do_fini(void)
157			{
158			static int finalized;
159
160	✓✗	19278	if (!finalized) {
161		9639	finalized = 1;
162
163	✓✗	9639	if (__cxa_finalize != NULL)
164		9639	__cxa_finalize(__dso_handle);
165
166			/*
167			* since the _init() function sets up the destructors to
168			* be called by atexit, do not call the destructors here.
169			*/
170		72	__dtors();
171		72	}
172		72	}