f78a2bcce8
Patch contributed by Herbert Duerr:
#i118662# remove berkeleyDB from module xmlhelp (author=orwitt)
http://svn.apache.org/viewvc?view=revision&revision=1213188
#i119141# remove ISCII converter for now
http://svn.apache.org/viewvc?view=revision&revision=1306246
make exceptions for cppunittester verbose
http://svn.apache.org/viewvc?view=revision&revision=1174831
Patches contributed by Pedro Giffuni:
Avoid some uses of non portable #!/bin/bash in shell scripts.
http://svn.apache.org/viewvc?view=revision&revision=1235297
Patch contributed by Oliver-Rainer Wittmann
88652: applied patch, remove unicows deps
http://svn.apache.org/viewvc?view=revision&revision=1177585
drop OS/2 code, remove in-line assembler ARM atomics,
and obsolete armarch header.
445 lines
12 KiB
C
445 lines
12 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <stdarg.h>
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#include <signal.h>
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#include <setjmp.h>
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#define printTypeSize(Type,Name) printf( "sizeof(%s)\t\t= %d\n", Name, (int) sizeof (Type) )
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#define isSignedType(Type) (((Type)-1) < 0)
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#define printTypeSign(Type,Name) printf( "%s\t\t= %s %s\n", Name, ( isSignedType(Type) ? "signed" : "unsigned" ), Name )
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/*************************************************************************
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|*
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|* IsBigEndian()
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|*
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|* Beschreibung True, wenn CPU BigEndian ist
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|*
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*************************************************************************/
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int IsBigEndian()
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{
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long l = 1;
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return ! *(char*)&l;
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}
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/*************************************************************************
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|*
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|* Typdeclarations for memory access test functions
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|*
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*************************************************************************/
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typedef enum { t_char, t_short, t_int, t_long, t_double } Type;
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typedef int (*TestFunc)( Type, void* );
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/*************************************************************************
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|*
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|* PrintArgs()
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|*
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|* Beschreibung Testfunktion fuer variable Parameter
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|*
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*************************************************************************/
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void PrintArgs( int p, ... )
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{
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int value;
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va_list ap;
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va_start( ap, p );
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printf( "value = %d", p );
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while ( ( value = va_arg(ap, int) ) != 0 )
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printf( " %d", value );
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printf( "\n" );
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va_end(ap);
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}
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/*************************************************************************
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|*
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|* SignalHdl()
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|*
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|* Beschreibung faengt SIGBUS und SIGSEGV in check() ab
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|*
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*************************************************************************/
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static sigjmp_buf jmpbuf;
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static volatile sig_atomic_t hit;
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void SignalHdl( int sig )
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{
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(void) sig; // ignored
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hit = 1;
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siglongjmp(jmpbuf, 0);
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}
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/*************************************************************************
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|*
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|* check()
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|*
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|* Beschreibung Testet MemoryZugriff (read/write)
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|*
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*************************************************************************/
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int check( TestFunc func, Type eT, void* p )
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{
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hit = 0;
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if (sigsetjmp(jmpbuf, 1) == 0) {
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struct sigaction sa;
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sa.sa_handler = SignalHdl;
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sigemptyset(&sa.sa_mask);
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sa.sa_flags = 0;
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if (sigaction(SIGBUS, &sa, NULL) != 0 ||
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sigaction(SIGSEGV, &sa, NULL) != 0)
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{
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abort();
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}
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func(eT, p);
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sa.sa_handler = SIG_DFL;
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if (sigaction(SIGBUS, &sa, NULL) != 0 ||
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sigaction(SIGSEGV, &sa, NULL) != 0)
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{
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abort();
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}
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}
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return hit ? -1 : 0;
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}
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/*************************************************************************
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|*
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|* GetAtAddress()
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|*
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|* Beschreibung memory read access
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|*
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*************************************************************************/
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#if defined(IA64) || defined(ARM32) || defined(HPPA) || defined(AXP)
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int forceerror()
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{
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#if defined(ARM32)
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// workaround for qemu-user
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hit = 1;
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#else
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raise (SIGBUS);
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#endif
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return 1;
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}
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int GetAtAddress( Type eT, void* p )
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{
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switch ( eT )
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{
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case t_char: return *((char*)p);
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case t_short: if ((long)p % sizeof(short)) return forceerror(); else return *((short*)p);
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case t_int: if ((long)p % sizeof(int)) return forceerror(); else return *((int*)p);
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case t_long: if ((long)p % sizeof(long)) return forceerror(); else return *((long*)p);
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case t_double: if ((long)p % sizeof(double)) return forceerror(); else return *((double*)p);
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}
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abort();
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}
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#else
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static int dummy(void* unused);
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int GetAtAddress( Type eT, void* p )
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{
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switch ( eT )
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{
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case t_char: { char x = *(char*)p; return dummy(&x); }
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case t_short: { short x = *(short*)p; return dummy(&x); }
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case t_int: { int x = *(int*)p; return dummy(&x); }
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case t_long: { long x = *(long*)p; return dummy(&x); }
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case t_double: { double x = *(double*)p; return dummy(&x); }
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}
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abort();
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}
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int dummy(void* unused)
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{
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(void)unused;
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return 0;
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}
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#endif
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/*************************************************************************
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|*
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|* SetAtAddress()
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|*
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|* Beschreibung memory write access
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|*
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*************************************************************************/
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int SetAtAddress( Type eT, void* p )
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{
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switch ( eT )
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{
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case t_char: return *((char*)p) = 0;
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case t_short: return *((short*)p) = 0;
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case t_int: return *((int*)p) = 0;
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case t_long: return *((long*)p) = 0;
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case t_double: return *((double*)p)= 0;
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}
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abort();
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}
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char* TypeName( Type eT )
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{
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switch ( eT )
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{
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case t_char: return "char";
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case t_short: return "short";
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case t_int: return "int";
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case t_long: return "long";
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case t_double: return "double";
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}
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abort();
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}
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/*************************************************************************
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|*
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|* Check(Get|Set)Access()
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|*
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|* Beschreibung Testet MemoryZugriff (read/write)
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|* Zugriffsverletzungen werden abgefangen
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|*
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*************************************************************************/
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int CheckGetAccess( Type eT, void* p )
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{
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int b;
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b = -1 != check( (TestFunc)GetAtAddress, eT, p );
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#if OSL_DEBUG_LEVEL > 1
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fprintf( stderr,
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"%s read %s at %p\n",
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(b? "can" : "can not" ), TypeName(eT), p );
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#endif
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return b;
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}
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int CheckSetAccess( Type eT, void* p )
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{
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int b;
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b = -1 != check( (TestFunc)SetAtAddress, eT, p );
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#if OSL_DEBUG_LEVEL > 1
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fprintf( stderr,
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"%s write %s at %p\n",
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(b? "can" : "can not" ), TypeName(eT), p );
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#endif
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return b;
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}
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/*************************************************************************
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|*
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|* GetAlignment()
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|*
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|* Beschreibung Bestimmt das Alignment verschiedener Typen
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|*
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*************************************************************************/
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int GetAlignment( Type eT )
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{
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char a[ 16*8 ];
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long p = (long)(void*)a;
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int i;
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/* clear a[...] to set legal value for double access */
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for ( i = 0; i < 16*8; i++ )
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a[i] = 0;
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p = ( p + 0xF ) & ~0xF;
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for ( i = 1; i < 16; i++ )
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if ( CheckGetAccess( eT, (void*)(p+i) ) )
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return i;
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return 0;
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}
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/*************************************************************************
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|*
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|* struct Description
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|*
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|* Beschreibung Beschreibt die Parameter der Architektur
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|*
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*************************************************************************/
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struct Description
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{
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int bBigEndian;
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int nAlignment[3]; /* 2,4,8 */
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};
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/*************************************************************************
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|*
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|* Description_Ctor()
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|*
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|* Beschreibung Bestimmt die Parameter der Architektur
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|*
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*************************************************************************/
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void Description_Ctor( struct Description* pThis )
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{
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pThis->bBigEndian = IsBigEndian();
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if ( sizeof(short) != 2 )
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abort();
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pThis->nAlignment[0] = GetAlignment( t_short );
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if ( sizeof(int) != 4 )
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abort();
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pThis->nAlignment[1] = GetAlignment( t_int );
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if ( sizeof(long) == 8 )
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pThis->nAlignment[2] = GetAlignment( t_long );
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else if ( sizeof(double) == 8 )
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pThis->nAlignment[2] = GetAlignment( t_double );
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else
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abort();
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}
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/*************************************************************************
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|*
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|* Description_Print()
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|*
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|* Beschreibung Schreibt die Parameter der Architektur als Header
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|*
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*************************************************************************/
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void Description_Print( struct Description* pThis, char* name )
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{
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int i;
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FILE* f = fopen( name, "w" );
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if( ! f ) {
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fprintf( stderr, "Unable to open file %s: %s\n", name, strerror( errno ) );
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exit( 99 );
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}
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fprintf( f, "/* This file is autogenerated from the 'typesconfig' program\n * in the sal module\n */\n\n" );
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/* Disabled for now in preference to big/little endian defines in <osl/endian.h> fa (2004-03-15) */
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/* fprintf( f, "#define SAL_TYPES_%s\n", pThis->bBigEndian ? "BIGENDIAN" : "LITTLEENDIAN" ); */
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for ( i = 0; i < 3; i++ )
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fprintf( f, "#define SAL_TYPES_ALIGNMENT%d\t%d\n", 1 << (i+1), pThis->nAlignment[i] );
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fprintf( f, "#define SAL_TYPES_SIZEOFSHORT\t%d\n", (int) sizeof( short ) );
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fprintf( f, "#define SAL_TYPES_SIZEOFINT\t%d\n", (int) sizeof( int ) );
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fprintf( f, "#define SAL_TYPES_SIZEOFLONG\t%d\n", (int) sizeof( long ) );
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fprintf( f, "#define SAL_TYPES_SIZEOFLONGLONG\t%d\n", (int) sizeof( long long ) );
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fprintf( f, "#define SAL_TYPES_SIZEOFPOINTER\t%d\n", (int) sizeof( void* ) );
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/* Disabled for now, becuase OOo code assumes sizeof(double) == 8 and this is not
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* likely to change any time soon. fa (2004-03-15)
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*/
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/* fprintf( f, "#define SAL_TYPES_SIZEOFDOUBLE\t%d\n", sizeof( double ) );*/
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fclose( f );
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}
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/*************************************************************************
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|*
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|* InfoMemoryAccess()
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|*
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|* Beschreibung Informeller Bytezugriffstest
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|*
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*************************************************************************/
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void InfoMemoryAccess( char* p )
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{
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if ( CheckGetAccess( t_char, p ) )
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printf( "can read address %p\n", p );
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else
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printf( "cannot read address %p\n", p );
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if ( CheckSetAccess( t_char, p ) )
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printf( "can write address %p\n", p );
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else
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printf( "cannot write address %p\n", p );
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}
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/*************************************************************************
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|*
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|* InfoMemoryTypeAccess()
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|*
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|* Beschreibung Informeller Zugriffstest verschiedener Typen
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|*
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*************************************************************************/
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void InfoMemoryTypeAccess( Type eT )
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{
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char a[64];
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int i;
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/* clear a[...] to set legal value for double access */
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for ( i = 0; i < 64; i++ )
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a[i] = 0;
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for ( i = 56; i >= 7; i >>= 1 )
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{
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if ( CheckGetAccess(eT, (long*)&a[i]) )
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printf( "Access %s on %i-Aligned Address : OK\n", TypeName(eT), i / 7 );
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else
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printf( "Access %s on %i-Aligned Address : ERROR\n", TypeName(eT), i / 7 );
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}
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}
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/************************************************************************
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*
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* Use C code to determine the characteristics of the building platform.
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*
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************************************************************************/
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int main( int argc, char* argv[] )
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{
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printTypeSign( char, "char" );
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printTypeSign( short, "short" );
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printTypeSign( int, "int" );
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printTypeSign( long, "long" );
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printTypeSign( long long, "long long" );
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printTypeSize( short, "short" );
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printTypeSize( int, "int" );
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printTypeSize( long, "long" );
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printTypeSize( long long, "long long" );
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printTypeSize( float, "float" );
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printTypeSize( double, "double" );
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printTypeSize( void *, "void *" );
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if ( IsBigEndian() )
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printf( "BIGENDIAN (Sparc, RS6000, IP22, IP32, PowerPC(BE))\n" );
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else
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printf( "LITTLEENDIAN (Intel, x86-64, PowerPC(LE))\n" );
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/* PrintArgs( 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 ); */
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if ( argc > 1 )
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{
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struct Description description;
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Description_Ctor( &description );
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Description_Print( &description, argv[1] );
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}
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{
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char* p = NULL;
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InfoMemoryAccess( p );
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p = (char*)&p;
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InfoMemoryAccess( p );
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InfoMemoryTypeAccess( t_short );
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InfoMemoryTypeAccess( t_int );
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InfoMemoryTypeAccess( t_long );
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InfoMemoryTypeAccess( t_double );
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}
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exit( 0 );
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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