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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/librthread/rthread_np.c	Lines:	2	31	6.5 %
Date:	2017-11-07	Branches:	0	18	0.0 %


/*	$OpenBSD: rthread_np.c,v 1.20 2017/09/05 02:40:54 guenther Exp $	*/
/*
 * Copyright (c) 2004,2005 Ted Unangst <tedu@openbsd.org>
 * Copyright (c) 2005 Otto Moerbeek <otto@openbsd.org>
 * All Rights Reserved.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <sys/param.h>
#include <sys/time.h>
#include <sys/lock.h>
#include <sys/resource.h>
#include <sys/queue.h>
#include <sys/sysctl.h>

#include <errno.h>
#include <pthread.h>
#include <pthread_np.h>
#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include <tib.h>
#include <unistd.h>

#include "rthread.h"

REDIRECT_SYSCALL(sysctl);

void
pthread_set_name_np(pthread_t thread, const char *name)
{
	strlcpy(thread->name, name, sizeof(thread->name));
}

int
pthread_main_np(void)
{
	return (!_threads_ready ||
	    (TIB_GET()->tib_thread_flags & TIB_THREAD_INITIAL_STACK) ? 1 : 0);
}


/*
 * Return stack info from the given thread.  Based upon the solaris
 * thr_stksegment function.  Note that the returned ss_sp member is the
 * *top* of the allocated stack area, unlike in sigaltstack() where
 * it's the bottom.  You'll have to ask Sun what they were thinking...
 *
 * This function taken from the uthread library, with the following
 * license:
 * PUBLIC DOMAIN: No Rights Reserved. Marco S Hyman <marc@snafu.org> */
int
pthread_stackseg_np(pthread_t thread, stack_t *sinfo)
{
	if (thread->stack) {
#ifdef MACHINE_STACK_GROWS_UP
		sinfo->ss_sp = thread->stack->base;
#else
		sinfo->ss_sp = (char *)thread->stack->base +
		    thread->stack->len;
#endif
		sinfo->ss_size = thread->stack->len;
		if (thread->stack->guardsize != 1)
			sinfo->ss_size -= thread->stack->guardsize;
		sinfo->ss_flags = 0;
		return (0);
	} else if (thread->tib->tib_thread_flags & TIB_THREAD_INITIAL_STACK) {
		static struct _ps_strings _ps;
		static struct rlimit rl;
		static int gotself;

		if (!_threads_ready)		/* for ROUND_TO_PAGE */
			_rthread_init();

		if (gotself == 0) {
			int mib[2];
			size_t len;

			if (getrlimit(RLIMIT_STACK, &rl) != 0)
				return (EAGAIN);

			mib[0] = CTL_VM;
			mib[1] = VM_PSSTRINGS;
			len = sizeof(_ps);
			if (sysctl(mib, 2, &_ps, &len, NULL, 0) != 0)
				return (EAGAIN);
			gotself = 1;
		}

		/*
		 * Provides a rough estimation of stack bounds.   Caller
		 * likely wants to know for the purpose of inspecting call
		 * frames, but VM_PSSTRINGS points to process arguments...
		 */
#ifdef MACHINE_STACK_GROWS_UP
		sinfo->ss_sp = _ps.val;
#else
		sinfo->ss_sp = (void *)ROUND_TO_PAGE((uintptr_t)_ps.val);
#endif
		sinfo->ss_size = (size_t)rl.rlim_cur;
		sinfo->ss_flags = 0;
		return (0);
	}
	return (EAGAIN);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: rthread_np.c,v 1.20 2017/09/05 02:40:54 guenther Exp $ */
2			/*
3			* Copyright (c) 2004,2005 Ted Unangst <tedu@openbsd.org>
4			* Copyright (c) 2005 Otto Moerbeek <otto@openbsd.org>
5			* All Rights Reserved.
6			*
7			* Permission to use, copy, modify, and distribute this software for any
8			* purpose with or without fee is hereby granted, provided that the above
9			* copyright notice and this permission notice appear in all copies.
10			*
11			* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12			* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13			* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14			* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15			* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16			* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17			* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18			*/
19
20			#include <sys/param.h>
21			#include <sys/time.h>
22			#include <sys/lock.h>
23			#include <sys/resource.h>
24			#include <sys/queue.h>
25			#include <sys/sysctl.h>
26
27			#include <errno.h>
28			#include <pthread.h>
29			#include <pthread_np.h>
30			#include <stddef.h>
31			#include <stdint.h>
32			#include <string.h>
33			#include <tib.h>
34			#include <unistd.h>
35
36			#include "rthread.h"
37
38			REDIRECT_SYSCALL(sysctl);
39
40			void
41			pthread_set_name_np(pthread_t thread, const char *name)
42			{
43		240	strlcpy(thread->name, name, sizeof(thread->name));
44		120	}
45
46			int
47			pthread_main_np(void)
48			{
49			return (!_threads_ready \|\|
50			(TIB_GET()->tib_thread_flags & TIB_THREAD_INITIAL_STACK) ? 1 : 0);
51			}
52
53
54			/*
55			* Return stack info from the given thread. Based upon the solaris
56			* thr_stksegment function. Note that the returned ss_sp member is the
57			* top of the allocated stack area, unlike in sigaltstack() where
58			* it's the bottom. You'll have to ask Sun what they were thinking...
59			*
60			* This function taken from the uthread library, with the following
61			* license:
62			* PUBLIC DOMAIN: No Rights Reserved. Marco S Hyman <marc@snafu.org> */
63			int
64			pthread_stackseg_np(pthread_t thread, stack_t *sinfo)
65			{
66			if (thread->stack) {
67			#ifdef MACHINE_STACK_GROWS_UP
68			sinfo->ss_sp = thread->stack->base;
69			#else
70			sinfo->ss_sp = (char *)thread->stack->base +
71			thread->stack->len;
72			#endif
73			sinfo->ss_size = thread->stack->len;
74			if (thread->stack->guardsize != 1)
75			sinfo->ss_size -= thread->stack->guardsize;
76			sinfo->ss_flags = 0;
77			return (0);
78			} else if (thread->tib->tib_thread_flags & TIB_THREAD_INITIAL_STACK) {
79			static struct _ps_strings _ps;
80			static struct rlimit rl;
81			static int gotself;
82
83			if (!_threads_ready) /* for ROUND_TO_PAGE */
84			_rthread_init();
85
86			if (gotself == 0) {
87			int mib[2];
88			size_t len;
89
90			if (getrlimit(RLIMIT_STACK, &rl) != 0)
91			return (EAGAIN);
92
93			mib[0] = CTL_VM;
94			mib[1] = VM_PSSTRINGS;
95			len = sizeof(_ps);
96			if (sysctl(mib, 2, &_ps, &len, NULL, 0) != 0)
97			return (EAGAIN);
98			gotself = 1;
99			}
100
101			/*
102			* Provides a rough estimation of stack bounds. Caller
103			* likely wants to know for the purpose of inspecting call
104			* frames, but VM_PSSTRINGS points to process arguments...
105			*/
106			#ifdef MACHINE_STACK_GROWS_UP
107			sinfo->ss_sp = _ps.val;
108			#else
109			sinfo->ss_sp = (void *)ROUND_TO_PAGE((uintptr_t)_ps.val);
110			#endif
111			sinfo->ss_size = (size_t)rl.rlim_cur;
112			sinfo->ss_flags = 0;
113			return (0);
114			}
115			return (EAGAIN);
116			}