Initial pc532 tree.
This commit is contained in:
phil
parent
5f598b71b4
commit
8c563dc201
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@ -0,0 +1,33 @@
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# @(#)Makefile 5.6 (Berkeley) 5/22/91
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CFLAGS= -O -DLIBC_SCCS
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OBJS= crt0.o gcrt0.o
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CLEANFILES+= gmon.o moncrt0.o core a.out
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all: ${OBJS}
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crt0.o: crt0.c
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${CC} ${CFLAGS} -c -DCRT0 ${.ALLSRC}
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${LD} -x -r ${.TARGET}
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mv a.out ${.TARGET}
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moncrt0.o: crt0.c
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${CC} ${CFLAGS} -c -DMCRT0 ${.ALLSRC} -o ${.TARGET}
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${LD} -x -r ${.TARGET}
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mv a.out ${.TARGET}
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gcrt0.o: moncrt0.o gmon.o
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${LD} -x -r -o ${.TARGET} moncrt0.o gmon.o
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gmon.o: gmon.c gmon.h
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${CC} -c ${DEFS} ${.IMPSRC}
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${LD} -x -r ${.TARGET}
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mv a.out ${.TARGET}
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install:
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install -o ${BINOWN} -g ${BINGRP} -m 444 ${OBJS} \
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${DESTDIR}/usr/lib
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depend lint tags:
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.include <bsd.prog.mk>
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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||||
* 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 the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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/*static char sccsid[] = "@(#)crt0.c 5.7 (Berkeley) 7/3/91"; */
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static char rcsid[] = "";
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#endif /* LIBC_SCCS and not lint */
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/*
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* $Id: crt0.c,v 1.1.1.1 1993/09/17 18:42:11 phil Exp $
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*
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* C start up routine.
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* Robert Henry, UCB, 20 Oct 81
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*
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* Modified by Phil Nelson for the PC532, July 18, 1993.
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*
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* We make the following (true) assumption:
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* 1) We can trust fp and sp. Both "start" pointing to the
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* first entry in the argc/argv/envp structure... After
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* the "enter [???],?", fp points to the word just before
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* the argc/argv/envp structure!
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*
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*/
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#include <stddef.h>
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#include <stdlib.h>
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#include <string.h>
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char **environ = (char **)0;
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static char empty[1];
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char *__progname = empty;
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int errno = 0;
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/* To make sure "start" is past the a.out header. This should go away soon. */
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asm(".text");
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asm(".long 0,0,0,0,0,0,0,0");
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extern unsigned char etext;
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extern unsigned char eprol asm ("eprol");
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extern start() asm("start");
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extern mcount() asm ("mcount");
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start(long param)
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{
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struct kframe {
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int kargc;
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char *kargv[1]; /* size depends on kargc */
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char kargstr[1]; /* size varies */
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char kenvstr[1]; /* size varies */
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};
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/*
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* ALL REGISTER VARIABLES!!!
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*/
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register struct kframe *kfp;
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register char **targv;
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register char **argv;
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extern void _mcleanup();
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kfp = (struct kframe *) (¶m-1);
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for (argv = targv = &kfp->kargv[0]; *targv++; /* void */)
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/* void */ ;
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if (targv >= (char **)(*argv))
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--targv;
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environ = targv;
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asm("eprol:");
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#ifdef MCRT0
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atexit(_mcleanup);
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monstartup(&eprol, &etext);
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#endif MCRT0
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errno = 0;
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if (argv[0])
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if ((__progname = strrchr(argv[0], '/')) == NULL)
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__progname = argv[0];
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else
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++__progname;
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exit(main(kfp->kargc, argv, environ));
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}
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#ifdef CRT0
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/*
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* null mcount and moncontrol,
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* just in case some routine is compiled for profiling
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*/
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moncontrol(val)
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int val;
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{
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}
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mcount() { }
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#endif CRT0
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@ -0,0 +1,329 @@
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/*-
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* Copyright (c) 1991 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 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
|
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
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* This product includes software developed by the University of
|
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
|
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* may be used to endorse or promote products derived from this software
|
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* without specific prior written permission.
|
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*
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||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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/* static char sccsid[] = "@(#)gmon.c 5.3 (Berkeley) 5/22/91"; */
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static char rcsid[] = "";
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#endif /* LIBC_SCCS and not lint */
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#include <unistd.h>
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#ifdef DEBUG
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#include <stdio.h>
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#endif
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#include "gmon.h"
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extern mcount() asm ("mcount");
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extern char *minbrk asm ("minbrk");
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/*
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* froms is actually a bunch of unsigned shorts indexing tos
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*/
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static int profiling = 3;
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static unsigned short *froms;
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static struct tostruct *tos = 0;
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static long tolimit = 0;
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static char *s_lowpc = 0;
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static char *s_highpc = 0;
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static unsigned long s_textsize = 0;
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static int ssiz;
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static char *sbuf;
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static int s_scale;
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/* see profil(2) where this is describe (incorrectly) */
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#define SCALE_1_TO_1 0x10000L
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#define MSG "No space for profiling buffer(s)\n"
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monstartup(lowpc, highpc)
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char *lowpc;
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char *highpc;
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{
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int monsize;
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char *buffer;
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register int o;
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/*
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* round lowpc and highpc to multiples of the density we're using
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* so the rest of the scaling (here and in gprof) stays in ints.
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*/
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lowpc = (char *)
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ROUNDDOWN((unsigned)lowpc, HISTFRACTION*sizeof(HISTCOUNTER));
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s_lowpc = lowpc;
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highpc = (char *)
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ROUNDUP((unsigned)highpc, HISTFRACTION*sizeof(HISTCOUNTER));
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s_highpc = highpc;
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s_textsize = highpc - lowpc;
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monsize = (s_textsize / HISTFRACTION) + sizeof(struct phdr);
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buffer = sbrk( monsize );
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if ( buffer == (char *) -1 ) {
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write( 2 , MSG , sizeof(MSG) );
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return;
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}
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froms = (unsigned short *) sbrk( s_textsize / HASHFRACTION );
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if ( froms == (unsigned short *) -1 ) {
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write( 2 , MSG , sizeof(MSG) );
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froms = 0;
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return;
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}
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tolimit = s_textsize * ARCDENSITY / 100;
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if ( tolimit < MINARCS ) {
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tolimit = MINARCS;
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} else if ( tolimit > 65534 ) {
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tolimit = 65534;
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}
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tos = (struct tostruct *) sbrk( tolimit * sizeof( struct tostruct ) );
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if ( tos == (struct tostruct *) -1 ) {
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write( 2 , MSG , sizeof(MSG) );
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froms = 0;
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tos = 0;
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return;
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}
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minbrk = sbrk(0);
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tos[0].link = 0;
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sbuf = buffer;
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ssiz = monsize;
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( (struct phdr *) buffer ) -> lpc = lowpc;
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( (struct phdr *) buffer ) -> hpc = highpc;
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( (struct phdr *) buffer ) -> ncnt = ssiz;
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monsize -= sizeof(struct phdr);
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if ( monsize <= 0 )
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return;
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o = highpc - lowpc;
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if( monsize < o )
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#ifndef hp300
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s_scale = ( (float) monsize / o ) * SCALE_1_TO_1;
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#else /* avoid floating point */
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{
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int quot = o / monsize;
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if (quot >= 0x10000)
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s_scale = 1;
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else if (quot >= 0x100)
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s_scale = 0x10000 / quot;
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else if (o >= 0x800000)
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s_scale = 0x1000000 / (o / (monsize >> 8));
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else
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s_scale = 0x1000000 / ((o << 8) / monsize);
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}
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#endif
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else
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s_scale = SCALE_1_TO_1;
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moncontrol(1);
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}
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_mcleanup()
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{
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int fd;
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int fromindex;
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int endfrom;
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char *frompc;
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int toindex;
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struct rawarc rawarc;
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moncontrol(0);
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fd = creat( "gmon.out" , 0666 );
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if ( fd < 0 ) {
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perror( "mcount: gmon.out" );
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return;
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}
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# ifdef DEBUG
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fprintf( stderr , "[mcleanup] sbuf 0x%x ssiz %d\n" , sbuf , ssiz );
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# endif DEBUG
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write( fd , sbuf , ssiz );
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endfrom = s_textsize / (HASHFRACTION * sizeof(*froms));
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for ( fromindex = 0 ; fromindex < endfrom ; fromindex++ ) {
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if ( froms[fromindex] == 0 ) {
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continue;
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}
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frompc = s_lowpc + (fromindex * HASHFRACTION * sizeof(*froms));
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for (toindex=froms[fromindex]; toindex!=0; toindex=tos[toindex].link) {
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# ifdef DEBUG
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fprintf( stderr ,
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"[mcleanup] frompc 0x%x selfpc 0x%x count %d\n" ,
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frompc , tos[toindex].selfpc , tos[toindex].count );
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# endif DEBUG
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rawarc.raw_frompc = (unsigned long) frompc;
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rawarc.raw_selfpc = (unsigned long) tos[toindex].selfpc;
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rawarc.raw_count = tos[toindex].count;
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write( fd , &rawarc , sizeof rawarc );
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}
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}
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close( fd );
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}
|
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mcount()
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{
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register char *selfpc;
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register unsigned short *frompcindex;
|
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register struct tostruct *top;
|
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register struct tostruct *prevtop;
|
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register long toindex;
|
||||
|
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/*
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* find the return address for mcount,
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* and the return address for mcount's caller.
|
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*/
|
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asm(".text"); /* make sure we're in text space */
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/*
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* selfpc = pc pushed by mcount call
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*/
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asm("movd 8(fp),%0" : "=r" (selfpc));
|
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/*
|
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* frompcindex = pc pushed by jsr into self.
|
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* In GCC the caller's stack frame has already been built so we
|
||||
* have to chase a6 to find caller's raddr.
|
||||
*/
|
||||
asm("movd 4(fp),%0" : "=r" (frompcindex));
|
||||
/*
|
||||
* check that we are profiling
|
||||
* and that we aren't recursively invoked.
|
||||
*/
|
||||
if (profiling) {
|
||||
goto out;
|
||||
}
|
||||
profiling++;
|
||||
/*
|
||||
* check that frompcindex is a reasonable pc value.
|
||||
* for example: signal catchers get called from the stack,
|
||||
* not from text space. too bad.
|
||||
*/
|
||||
frompcindex = (unsigned short *)((long)frompcindex - (long)s_lowpc);
|
||||
if ((unsigned long)frompcindex > s_textsize) {
|
||||
goto done;
|
||||
}
|
||||
frompcindex =
|
||||
&froms[((long)frompcindex) / (HASHFRACTION * sizeof(*froms))];
|
||||
toindex = *frompcindex;
|
||||
if (toindex == 0) {
|
||||
/*
|
||||
* first time traversing this arc
|
||||
*/
|
||||
toindex = ++tos[0].link;
|
||||
if (toindex >= tolimit) {
|
||||
goto overflow;
|
||||
}
|
||||
*frompcindex = toindex;
|
||||
top = &tos[toindex];
|
||||
top->selfpc = selfpc;
|
||||
top->count = 1;
|
||||
top->link = 0;
|
||||
goto done;
|
||||
}
|
||||
top = &tos[toindex];
|
||||
if (top->selfpc == selfpc) {
|
||||
/*
|
||||
* arc at front of chain; usual case.
|
||||
*/
|
||||
top->count++;
|
||||
goto done;
|
||||
}
|
||||
/*
|
||||
* have to go looking down chain for it.
|
||||
* top points to what we are looking at,
|
||||
* prevtop points to previous top.
|
||||
* we know it is not at the head of the chain.
|
||||
*/
|
||||
for (; /* goto done */; ) {
|
||||
if (top->link == 0) {
|
||||
/*
|
||||
* top is end of the chain and none of the chain
|
||||
* had top->selfpc == selfpc.
|
||||
* so we allocate a new tostruct
|
||||
* and link it to the head of the chain.
|
||||
*/
|
||||
toindex = ++tos[0].link;
|
||||
if (toindex >= tolimit) {
|
||||
goto overflow;
|
||||
}
|
||||
top = &tos[toindex];
|
||||
top->selfpc = selfpc;
|
||||
top->count = 1;
|
||||
top->link = *frompcindex;
|
||||
*frompcindex = toindex;
|
||||
goto done;
|
||||
}
|
||||
/*
|
||||
* otherwise, check the next arc on the chain.
|
||||
*/
|
||||
prevtop = top;
|
||||
top = &tos[top->link];
|
||||
if (top->selfpc == selfpc) {
|
||||
/*
|
||||
* there it is.
|
||||
* increment its count
|
||||
* move it to the head of the chain.
|
||||
*/
|
||||
top->count++;
|
||||
toindex = prevtop->link;
|
||||
prevtop->link = top->link;
|
||||
top->link = *frompcindex;
|
||||
*frompcindex = toindex;
|
||||
goto done;
|
||||
}
|
||||
|
||||
}
|
||||
done:
|
||||
profiling--;
|
||||
/* and fall through */
|
||||
out:
|
||||
return; /* normal return restores saved registers */
|
||||
|
||||
overflow:
|
||||
profiling++; /* halt further profiling */
|
||||
# define TOLIMIT "mcount: tos overflow\n"
|
||||
write(2, TOLIMIT, sizeof(TOLIMIT));
|
||||
goto out;
|
||||
}
|
||||
|
||||
/*
|
||||
* Control profiling
|
||||
* profiling is what mcount checks to see if
|
||||
* all the data structures are ready.
|
||||
*/
|
||||
moncontrol(mode)
|
||||
int mode;
|
||||
{
|
||||
if (mode) {
|
||||
/* start */
|
||||
profil(sbuf + sizeof(struct phdr), ssiz - sizeof(struct phdr),
|
||||
(int)s_lowpc, s_scale);
|
||||
profiling = 0;
|
||||
} else {
|
||||
/* stop */
|
||||
profil((char *)0, 0, 0, 0);
|
||||
profiling = 3;
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,107 @@
|
|||
/*-
|
||||
* Copyright (c) 1991 The Regents of the University of California.
|
||||
* 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 the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
||||
*
|
||||
* @(#)gmon.h 5.2 (Berkeley) 5/6/91
|
||||
*
|
||||
* $Id: gmon.h,v 1.1.1.1 1993/09/17 18:42:11 phil Exp $
|
||||
*/
|
||||
|
||||
struct phdr {
|
||||
char *lpc;
|
||||
char *hpc;
|
||||
int ncnt;
|
||||
};
|
||||
|
||||
/*
|
||||
* histogram counters are unsigned shorts (according to the kernel).
|
||||
*/
|
||||
#define HISTCOUNTER unsigned short
|
||||
|
||||
/*
|
||||
* fraction of text space to allocate for histogram counters
|
||||
* here, 1/2
|
||||
*/
|
||||
#define HISTFRACTION 2
|
||||
|
||||
/*
|
||||
* Fraction of text space to allocate for from hash buckets.
|
||||
* The value of HASHFRACTION is based on the minimum number of bytes
|
||||
* of separation between two subroutine call points in the object code.
|
||||
* Given MIN_SUBR_SEPARATION bytes of separation the value of
|
||||
* HASHFRACTION is calculated as:
|
||||
*
|
||||
* HASHFRACTION = MIN_SUBR_SEPARATION / (2 * sizeof(short) - 1);
|
||||
*
|
||||
* For the VAX, the shortest two call sequence is:
|
||||
*
|
||||
* calls $0,(r0)
|
||||
* calls $0,(r0)
|
||||
*
|
||||
* which is separated by only three bytes, thus HASHFRACTION is
|
||||
* calculated as:
|
||||
*
|
||||
* HASHFRACTION = 3 / (2 * 2 - 1) = 1
|
||||
*
|
||||
* Note that the division above rounds down, thus if MIN_SUBR_FRACTION
|
||||
* is less than three, this algorithm will not work!
|
||||
*/
|
||||
#define HASHFRACTION 1
|
||||
|
||||
/*
|
||||
* percent of text space to allocate for tostructs
|
||||
* with a minimum.
|
||||
*/
|
||||
#define ARCDENSITY 2
|
||||
#define MINARCS 50
|
||||
|
||||
struct tostruct {
|
||||
char *selfpc;
|
||||
long count;
|
||||
unsigned short link;
|
||||
};
|
||||
|
||||
/*
|
||||
* a raw arc,
|
||||
* with pointers to the calling site and the called site
|
||||
* and a count.
|
||||
*/
|
||||
struct rawarc {
|
||||
unsigned long raw_frompc;
|
||||
unsigned long raw_selfpc;
|
||||
long raw_count;
|
||||
};
|
||||
|
||||
/*
|
||||
* general rounding functions.
|
||||
*/
|
||||
#define ROUNDDOWN(x,y) (((x)/(y))*(y))
|
||||
#define ROUNDUP(x,y) ((((x)+(y)-1)/(y))*(y))
|
||||
|
|
@ -0,0 +1,33 @@
|
|||
# @(#)Makefile 5.6 (Berkeley) 5/22/91
|
||||
|
||||
CFLAGS= -O -DLIBC_SCCS
|
||||
OBJS= crt0.o gcrt0.o
|
||||
CLEANFILES+= gmon.o moncrt0.o core a.out
|
||||
|
||||
all: ${OBJS}
|
||||
|
||||
crt0.o: crt0.c
|
||||
${CC} ${CFLAGS} -c -DCRT0 ${.ALLSRC}
|
||||
${LD} -x -r ${.TARGET}
|
||||
mv a.out ${.TARGET}
|
||||
|
||||
moncrt0.o: crt0.c
|
||||
${CC} ${CFLAGS} -c -DMCRT0 ${.ALLSRC} -o ${.TARGET}
|
||||
${LD} -x -r ${.TARGET}
|
||||
mv a.out ${.TARGET}
|
||||
|
||||
gcrt0.o: moncrt0.o gmon.o
|
||||
${LD} -x -r -o ${.TARGET} moncrt0.o gmon.o
|
||||
|
||||
gmon.o: gmon.c gmon.h
|
||||
${CC} -c ${DEFS} ${.IMPSRC}
|
||||
${LD} -x -r ${.TARGET}
|
||||
mv a.out ${.TARGET}
|
||||
|
||||
install:
|
||||
install -o ${BINOWN} -g ${BINGRP} -m 444 ${OBJS} \
|
||||
${DESTDIR}/usr/lib
|
||||
|
||||
depend lint tags:
|
||||
|
||||
.include <bsd.prog.mk>
|
||||
|
|
@ -0,0 +1,122 @@
|
|||
/*-
|
||||
* Copyright (c) 1990 The Regents of the University of California.
|
||||
* 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 the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
||||
*/
|
||||
|
||||
#if defined(LIBC_SCCS) && !defined(lint)
|
||||
/*static char sccsid[] = "@(#)crt0.c 5.7 (Berkeley) 7/3/91"; */
|
||||
static char rcsid[] = "";
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
|
||||
|
||||
/*
|
||||
* $Id: crt0.c,v 1.1.1.1 1993/09/17 18:42:11 phil Exp $
|
||||
*
|
||||
* C start up routine.
|
||||
* Robert Henry, UCB, 20 Oct 81
|
||||
*
|
||||
* Modified by Phil Nelson for the PC532, July 18, 1993.
|
||||
*
|
||||
* We make the following (true) assumption:
|
||||
* 1) We can trust fp and sp. Both "start" pointing to the
|
||||
* first entry in the argc/argv/envp structure... After
|
||||
* the "enter [???],?", fp points to the word just before
|
||||
* the argc/argv/envp structure!
|
||||
*
|
||||
*/
|
||||
|
||||
#include <stddef.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
char **environ = (char **)0;
|
||||
static char empty[1];
|
||||
char *__progname = empty;
|
||||
int errno = 0;
|
||||
|
||||
/* To make sure "start" is past the a.out header. This should go away soon. */
|
||||
asm(".text");
|
||||
asm(".long 0,0,0,0,0,0,0,0");
|
||||
|
||||
extern unsigned char etext;
|
||||
extern unsigned char eprol asm ("eprol");
|
||||
extern start() asm("start");
|
||||
extern mcount() asm ("mcount");
|
||||
|
||||
start(long param)
|
||||
{
|
||||
struct kframe {
|
||||
int kargc;
|
||||
char *kargv[1]; /* size depends on kargc */
|
||||
char kargstr[1]; /* size varies */
|
||||
char kenvstr[1]; /* size varies */
|
||||
};
|
||||
/*
|
||||
* ALL REGISTER VARIABLES!!!
|
||||
*/
|
||||
register struct kframe *kfp;
|
||||
register char **targv;
|
||||
register char **argv;
|
||||
extern void _mcleanup();
|
||||
|
||||
kfp = (struct kframe *) (¶m-1);
|
||||
for (argv = targv = &kfp->kargv[0]; *targv++; /* void */)
|
||||
/* void */ ;
|
||||
if (targv >= (char **)(*argv))
|
||||
--targv;
|
||||
environ = targv;
|
||||
asm("eprol:");
|
||||
|
||||
#ifdef MCRT0
|
||||
atexit(_mcleanup);
|
||||
monstartup(&eprol, &etext);
|
||||
#endif MCRT0
|
||||
errno = 0;
|
||||
if (argv[0])
|
||||
if ((__progname = strrchr(argv[0], '/')) == NULL)
|
||||
__progname = argv[0];
|
||||
else
|
||||
++__progname;
|
||||
exit(main(kfp->kargc, argv, environ));
|
||||
}
|
||||
|
||||
#ifdef CRT0
|
||||
/*
|
||||
* null mcount and moncontrol,
|
||||
* just in case some routine is compiled for profiling
|
||||
*/
|
||||
moncontrol(val)
|
||||
int val;
|
||||
{
|
||||
}
|
||||
|
||||
mcount() { }
|
||||
#endif CRT0
|
||||
|
|
@ -0,0 +1,329 @@
|
|||
/*-
|
||||
* Copyright (c) 1991 The Regents of the University of California.
|
||||
* 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 the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
||||
*/
|
||||
|
||||
#if defined(LIBC_SCCS) && !defined(lint)
|
||||
/* static char sccsid[] = "@(#)gmon.c 5.3 (Berkeley) 5/22/91"; */
|
||||
static char rcsid[] = "";
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
|
||||
|
||||
#include <unistd.h>
|
||||
|
||||
#ifdef DEBUG
|
||||
#include <stdio.h>
|
||||
#endif
|
||||
|
||||
#include "gmon.h"
|
||||
|
||||
extern mcount() asm ("mcount");
|
||||
extern char *minbrk asm ("minbrk");
|
||||
|
||||
/*
|
||||
* froms is actually a bunch of unsigned shorts indexing tos
|
||||
*/
|
||||
static int profiling = 3;
|
||||
static unsigned short *froms;
|
||||
static struct tostruct *tos = 0;
|
||||
static long tolimit = 0;
|
||||
static char *s_lowpc = 0;
|
||||
static char *s_highpc = 0;
|
||||
static unsigned long s_textsize = 0;
|
||||
|
||||
static int ssiz;
|
||||
static char *sbuf;
|
||||
static int s_scale;
|
||||
/* see profil(2) where this is describe (incorrectly) */
|
||||
#define SCALE_1_TO_1 0x10000L
|
||||
|
||||
#define MSG "No space for profiling buffer(s)\n"
|
||||
|
||||
monstartup(lowpc, highpc)
|
||||
char *lowpc;
|
||||
char *highpc;
|
||||
{
|
||||
int monsize;
|
||||
char *buffer;
|
||||
register int o;
|
||||
|
||||
/*
|
||||
* round lowpc and highpc to multiples of the density we're using
|
||||
* so the rest of the scaling (here and in gprof) stays in ints.
|
||||
*/
|
||||
lowpc = (char *)
|
||||
ROUNDDOWN((unsigned)lowpc, HISTFRACTION*sizeof(HISTCOUNTER));
|
||||
s_lowpc = lowpc;
|
||||
highpc = (char *)
|
||||
ROUNDUP((unsigned)highpc, HISTFRACTION*sizeof(HISTCOUNTER));
|
||||
s_highpc = highpc;
|
||||
s_textsize = highpc - lowpc;
|
||||
monsize = (s_textsize / HISTFRACTION) + sizeof(struct phdr);
|
||||
buffer = sbrk( monsize );
|
||||
if ( buffer == (char *) -1 ) {
|
||||
write( 2 , MSG , sizeof(MSG) );
|
||||
return;
|
||||
}
|
||||
froms = (unsigned short *) sbrk( s_textsize / HASHFRACTION );
|
||||
if ( froms == (unsigned short *) -1 ) {
|
||||
write( 2 , MSG , sizeof(MSG) );
|
||||
froms = 0;
|
||||
return;
|
||||
}
|
||||
tolimit = s_textsize * ARCDENSITY / 100;
|
||||
if ( tolimit < MINARCS ) {
|
||||
tolimit = MINARCS;
|
||||
} else if ( tolimit > 65534 ) {
|
||||
tolimit = 65534;
|
||||
}
|
||||
tos = (struct tostruct *) sbrk( tolimit * sizeof( struct tostruct ) );
|
||||
if ( tos == (struct tostruct *) -1 ) {
|
||||
write( 2 , MSG , sizeof(MSG) );
|
||||
froms = 0;
|
||||
tos = 0;
|
||||
return;
|
||||
}
|
||||
minbrk = sbrk(0);
|
||||
tos[0].link = 0;
|
||||
sbuf = buffer;
|
||||
ssiz = monsize;
|
||||
( (struct phdr *) buffer ) -> lpc = lowpc;
|
||||
( (struct phdr *) buffer ) -> hpc = highpc;
|
||||
( (struct phdr *) buffer ) -> ncnt = ssiz;
|
||||
monsize -= sizeof(struct phdr);
|
||||
if ( monsize <= 0 )
|
||||
return;
|
||||
o = highpc - lowpc;
|
||||
if( monsize < o )
|
||||
#ifndef hp300
|
||||
s_scale = ( (float) monsize / o ) * SCALE_1_TO_1;
|
||||
#else /* avoid floating point */
|
||||
{
|
||||
int quot = o / monsize;
|
||||
|
||||
if (quot >= 0x10000)
|
||||
s_scale = 1;
|
||||
else if (quot >= 0x100)
|
||||
s_scale = 0x10000 / quot;
|
||||
else if (o >= 0x800000)
|
||||
s_scale = 0x1000000 / (o / (monsize >> 8));
|
||||
else
|
||||
s_scale = 0x1000000 / ((o << 8) / monsize);
|
||||
}
|
||||
#endif
|
||||
else
|
||||
s_scale = SCALE_1_TO_1;
|
||||
moncontrol(1);
|
||||
}
|
||||
|
||||
_mcleanup()
|
||||
{
|
||||
int fd;
|
||||
int fromindex;
|
||||
int endfrom;
|
||||
char *frompc;
|
||||
int toindex;
|
||||
struct rawarc rawarc;
|
||||
|
||||
moncontrol(0);
|
||||
fd = creat( "gmon.out" , 0666 );
|
||||
if ( fd < 0 ) {
|
||||
perror( "mcount: gmon.out" );
|
||||
return;
|
||||
}
|
||||
# ifdef DEBUG
|
||||
fprintf( stderr , "[mcleanup] sbuf 0x%x ssiz %d\n" , sbuf , ssiz );
|
||||
# endif DEBUG
|
||||
write( fd , sbuf , ssiz );
|
||||
endfrom = s_textsize / (HASHFRACTION * sizeof(*froms));
|
||||
for ( fromindex = 0 ; fromindex < endfrom ; fromindex++ ) {
|
||||
if ( froms[fromindex] == 0 ) {
|
||||
continue;
|
||||
}
|
||||
frompc = s_lowpc + (fromindex * HASHFRACTION * sizeof(*froms));
|
||||
for (toindex=froms[fromindex]; toindex!=0; toindex=tos[toindex].link) {
|
||||
# ifdef DEBUG
|
||||
fprintf( stderr ,
|
||||
"[mcleanup] frompc 0x%x selfpc 0x%x count %d\n" ,
|
||||
frompc , tos[toindex].selfpc , tos[toindex].count );
|
||||
# endif DEBUG
|
||||
rawarc.raw_frompc = (unsigned long) frompc;
|
||||
rawarc.raw_selfpc = (unsigned long) tos[toindex].selfpc;
|
||||
rawarc.raw_count = tos[toindex].count;
|
||||
write( fd , &rawarc , sizeof rawarc );
|
||||
}
|
||||
}
|
||||
close( fd );
|
||||
}
|
||||
|
||||
mcount()
|
||||
{
|
||||
register char *selfpc;
|
||||
register unsigned short *frompcindex;
|
||||
register struct tostruct *top;
|
||||
register struct tostruct *prevtop;
|
||||
register long toindex;
|
||||
|
||||
/*
|
||||
* find the return address for mcount,
|
||||
* and the return address for mcount's caller.
|
||||
*/
|
||||
asm(".text"); /* make sure we're in text space */
|
||||
/*
|
||||
* selfpc = pc pushed by mcount call
|
||||
*/
|
||||
asm("movd 8(fp),%0" : "=r" (selfpc));
|
||||
/*
|
||||
* frompcindex = pc pushed by jsr into self.
|
||||
* In GCC the caller's stack frame has already been built so we
|
||||
* have to chase a6 to find caller's raddr.
|
||||
*/
|
||||
asm("movd 4(fp),%0" : "=r" (frompcindex));
|
||||
/*
|
||||
* check that we are profiling
|
||||
* and that we aren't recursively invoked.
|
||||
*/
|
||||
if (profiling) {
|
||||
goto out;
|
||||
}
|
||||
profiling++;
|
||||
/*
|
||||
* check that frompcindex is a reasonable pc value.
|
||||
* for example: signal catchers get called from the stack,
|
||||
* not from text space. too bad.
|
||||
*/
|
||||
frompcindex = (unsigned short *)((long)frompcindex - (long)s_lowpc);
|
||||
if ((unsigned long)frompcindex > s_textsize) {
|
||||
goto done;
|
||||
}
|
||||
frompcindex =
|
||||
&froms[((long)frompcindex) / (HASHFRACTION * sizeof(*froms))];
|
||||
toindex = *frompcindex;
|
||||
if (toindex == 0) {
|
||||
/*
|
||||
* first time traversing this arc
|
||||
*/
|
||||
toindex = ++tos[0].link;
|
||||
if (toindex >= tolimit) {
|
||||
goto overflow;
|
||||
}
|
||||
*frompcindex = toindex;
|
||||
top = &tos[toindex];
|
||||
top->selfpc = selfpc;
|
||||
top->count = 1;
|
||||
top->link = 0;
|
||||
goto done;
|
||||
}
|
||||
top = &tos[toindex];
|
||||
if (top->selfpc == selfpc) {
|
||||
/*
|
||||
* arc at front of chain; usual case.
|
||||
*/
|
||||
top->count++;
|
||||
goto done;
|
||||
}
|
||||
/*
|
||||
* have to go looking down chain for it.
|
||||
* top points to what we are looking at,
|
||||
* prevtop points to previous top.
|
||||
* we know it is not at the head of the chain.
|
||||
*/
|
||||
for (; /* goto done */; ) {
|
||||
if (top->link == 0) {
|
||||
/*
|
||||
* top is end of the chain and none of the chain
|
||||
* had top->selfpc == selfpc.
|
||||
* so we allocate a new tostruct
|
||||
* and link it to the head of the chain.
|
||||
*/
|
||||
toindex = ++tos[0].link;
|
||||
if (toindex >= tolimit) {
|
||||
goto overflow;
|
||||
}
|
||||
top = &tos[toindex];
|
||||
top->selfpc = selfpc;
|
||||
top->count = 1;
|
||||
top->link = *frompcindex;
|
||||
*frompcindex = toindex;
|
||||
goto done;
|
||||
}
|
||||
/*
|
||||
* otherwise, check the next arc on the chain.
|
||||
*/
|
||||
prevtop = top;
|
||||
top = &tos[top->link];
|
||||
if (top->selfpc == selfpc) {
|
||||
/*
|
||||
* there it is.
|
||||
* increment its count
|
||||
* move it to the head of the chain.
|
||||
*/
|
||||
top->count++;
|
||||
toindex = prevtop->link;
|
||||
prevtop->link = top->link;
|
||||
top->link = *frompcindex;
|
||||
*frompcindex = toindex;
|
||||
goto done;
|
||||
}
|
||||
|
||||
}
|
||||
done:
|
||||
profiling--;
|
||||
/* and fall through */
|
||||
out:
|
||||
return; /* normal return restores saved registers */
|
||||
|
||||
overflow:
|
||||
profiling++; /* halt further profiling */
|
||||
# define TOLIMIT "mcount: tos overflow\n"
|
||||
write(2, TOLIMIT, sizeof(TOLIMIT));
|
||||
goto out;
|
||||
}
|
||||
|
||||
/*
|
||||
* Control profiling
|
||||
* profiling is what mcount checks to see if
|
||||
* all the data structures are ready.
|
||||
*/
|
||||
moncontrol(mode)
|
||||
int mode;
|
||||
{
|
||||
if (mode) {
|
||||
/* start */
|
||||
profil(sbuf + sizeof(struct phdr), ssiz - sizeof(struct phdr),
|
||||
(int)s_lowpc, s_scale);
|
||||
profiling = 0;
|
||||
} else {
|
||||
/* stop */
|
||||
profil((char *)0, 0, 0, 0);
|
||||
profiling = 3;
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,107 @@
|
|||
/*-
|
||||
* Copyright (c) 1991 The Regents of the University of California.
|
||||
* 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 the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
||||
*
|
||||
* @(#)gmon.h 5.2 (Berkeley) 5/6/91
|
||||
*
|
||||
* $Id: gmon.h,v 1.1.1.1 1993/09/17 18:42:11 phil Exp $
|
||||
*/
|
||||
|
||||
struct phdr {
|
||||
char *lpc;
|
||||
char *hpc;
|
||||
int ncnt;
|
||||
};
|
||||
|
||||
/*
|
||||
* histogram counters are unsigned shorts (according to the kernel).
|
||||
*/
|
||||
#define HISTCOUNTER unsigned short
|
||||
|
||||
/*
|
||||
* fraction of text space to allocate for histogram counters
|
||||
* here, 1/2
|
||||
*/
|
||||
#define HISTFRACTION 2
|
||||
|
||||
/*
|
||||
* Fraction of text space to allocate for from hash buckets.
|
||||
* The value of HASHFRACTION is based on the minimum number of bytes
|
||||
* of separation between two subroutine call points in the object code.
|
||||
* Given MIN_SUBR_SEPARATION bytes of separation the value of
|
||||
* HASHFRACTION is calculated as:
|
||||
*
|
||||
* HASHFRACTION = MIN_SUBR_SEPARATION / (2 * sizeof(short) - 1);
|
||||
*
|
||||
* For the VAX, the shortest two call sequence is:
|
||||
*
|
||||
* calls $0,(r0)
|
||||
* calls $0,(r0)
|
||||
*
|
||||
* which is separated by only three bytes, thus HASHFRACTION is
|
||||
* calculated as:
|
||||
*
|
||||
* HASHFRACTION = 3 / (2 * 2 - 1) = 1
|
||||
*
|
||||
* Note that the division above rounds down, thus if MIN_SUBR_FRACTION
|
||||
* is less than three, this algorithm will not work!
|
||||
*/
|
||||
#define HASHFRACTION 1
|
||||
|
||||
/*
|
||||
* percent of text space to allocate for tostructs
|
||||
* with a minimum.
|
||||
*/
|
||||
#define ARCDENSITY 2
|
||||
#define MINARCS 50
|
||||
|
||||
struct tostruct {
|
||||
char *selfpc;
|
||||
long count;
|
||||
unsigned short link;
|
||||
};
|
||||
|
||||
/*
|
||||
* a raw arc,
|
||||
* with pointers to the calling site and the called site
|
||||
* and a count.
|
||||
*/
|
||||
struct rawarc {
|
||||
unsigned long raw_frompc;
|
||||
unsigned long raw_selfpc;
|
||||
long raw_count;
|
||||
};
|
||||
|
||||
/*
|
||||
* general rounding functions.
|
||||
*/
|
||||
#define ROUNDDOWN(x,y) (((x)/(y))*(y))
|
||||
#define ROUNDUP(x,y) ((((x)+(y)-1)/(y))*(y))
|
||||
Loading…
Reference in New Issue