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📄 Makefile.inc(607 B)
📄 __aeabi_read_tp.S(1.7 KB)
📄 _ctx_start.S(198 B)
📄 _set_tp.c(1.61 KB)
📄 _setjmp.S(3.96 KB)
📄 alloca.S(2.12 KB)
📄 arm_drain_writebuf.2(2.88 KB)
📄 arm_drain_writebuf.c(1.53 KB)
📄 arm_initfini.c(2.74 KB)
📄 arm_sync_icache.2(2.83 KB)
📄 arm_sync_icache.c(1.64 KB)
📄 divsi3.S(8.28 KB)
📄 fabs.c(1.94 KB)
📄 flt_rounds.c(2.14 KB)
📄 fpgetmask_vfp.c(1.68 KB)
📄 fpgetround_vfp.c(1.61 KB)
📄 fpgetsticky_vfp.c(1.68 KB)
📄 fpsetmask_vfp.c(1.82 KB)
📄 fpsetround_vfp.c(1.71 KB)
📄 fpsetsticky_vfp.c(1.78 KB)
📄 getcontextx.c(2.61 KB)
📄 infinity.c(417 B)
📄 makecontext.c(2.9 KB)
📄 setjmp.S(4.1 KB)
📄 signalcontext.c(2.47 KB)
📄 sigsetjmp.S(2.61 KB)

Editing: makecontext.c

/*	$NetBSD: makecontext.c,v 1.2 2003/01/18 11:06:24 thorpej Exp $	*/

/*-
 * SPDX-License-Identifier: BSD-2-Clause-NetBSD
 *
 * Copyright (c) 2001 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Klaus Klein.
 *
 * 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``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 FOUNDATION OR CONTRIBUTORS
 * 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/cdefs.h>
__FBSDID("$FreeBSD$");

#include <stdlib.h>
#include <stddef.h>
#include <inttypes.h>
#include <ucontext.h>

#include <stdarg.h>

extern void _ctx_start(void);

void
ctx_done(ucontext_t *ucp)
{       
	        
	if (ucp->uc_link == NULL)
		exit(0);
	else {  
		setcontext((const ucontext_t *)ucp->uc_link);
		abort();
	}                                                      
}

__weak_reference(__makecontext, makecontext);

void
__makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
{
	__greg_t *gr = ucp->uc_mcontext.__gregs;
	int i;
	unsigned int *sp;
	va_list ap;

/* Compute and align stack pointer. */
	sp = (unsigned int *)
	    (((uintptr_t)ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size -
	      sizeof(double)) & ~7);
	/* Allocate necessary stack space for arguments exceeding r0-3. */
	if (argc > 4)
		sp -= argc - 4;
	gr[_REG_SP] = (__greg_t)sp;
	/* Wipe out frame pointer. */
	gr[_REG_FP] = 0;
	/* Arrange for return via the trampoline code. */
	gr[_REG_PC] = (__greg_t)_ctx_start;
	gr[_REG_R4] = (__greg_t)func;
	gr[_REG_R5] = (__greg_t)ucp;

va_start(ap, argc);
	/* Pass up to four arguments in r0-3. */
	for (i = 0; i < argc && i < 4; i++)
		gr[_REG_R0 + i] = va_arg(ap, int);
	/* Pass any additional arguments on the stack. */
	for (argc -= i; argc > 0; argc--)
		*sp++ = va_arg(ap, int);
	va_end(ap);
}

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Editing: makecontext.c

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