Fail* directories reorganized, Code-cleanup (-> coding-style), Typos+comments fixed.
git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1321 8c4709b5-6ec9-48aa-a5cd-a96041d1645a
This commit is contained in:
adrian
339
simulators/bochs/osdep.cc
Normal file
339
simulators/bochs/osdep.cc
Normal file
@ -0,0 +1,339 @@
|
||||
/////////////////////////////////////////////////////////////////////////
|
||||
// $Id$
|
||||
/////////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// Copyright (C) 2001-2009 The Bochs Project
|
||||
//
|
||||
// This library is free software; you can redistribute it and/or
|
||||
// modify it under the terms of the GNU Lesser General Public
|
||||
// License as published by the Free Software Foundation; either
|
||||
// version 2 of the License, or (at your option) any later version.
|
||||
//
|
||||
// This library is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
// Lesser General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU Lesser General Public
|
||||
// License along with this library; if not, write to the Free Software
|
||||
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
/////////////////////////////////////////////////////////////////////////
|
||||
|
||||
//
|
||||
// osdep.cc
|
||||
//
|
||||
// Provide definition of library functions that are missing on various
|
||||
// systems. The only reason this is a .cc file rather than a .c file
|
||||
// is so that it can include bochs.h. Bochs.h includes all the required
|
||||
// system headers, with appropriate #ifdefs for different compilers and
|
||||
// platforms.
|
||||
//
|
||||
|
||||
#include "bochs.h"
|
||||
|
||||
//////////////////////////////////////////////////////////////////////
|
||||
// Missing library functions. These should work on any platform
|
||||
// that needs them.
|
||||
//////////////////////////////////////////////////////////////////////
|
||||
|
||||
#if !BX_HAVE_SNPRINTF
|
||||
/* XXX use real snprintf */
|
||||
/* if they don't have snprintf, just use sprintf */
|
||||
int bx_snprintf (char *s, size_t maxlen, const char *format, ...)
|
||||
{
|
||||
va_list arg;
|
||||
int done;
|
||||
|
||||
va_start (arg, format);
|
||||
done = vsprintf (s, format, arg);
|
||||
va_end (arg);
|
||||
|
||||
return done;
|
||||
}
|
||||
|
||||
#endif /* !BX_HAVE_SNPRINTF */
|
||||
|
||||
#if !BX_HAVE_VSNPRINTF
|
||||
int bx_vsnprintf (char *s, size_t maxlen, const char *format, va_list arg)
|
||||
{
|
||||
return vsprintf (s, format, arg);
|
||||
}
|
||||
#endif /* !BX_HAVE_VSNPRINTF*/
|
||||
|
||||
#if (!BX_HAVE_STRTOULL && !BX_HAVE_STRTOUQ)
|
||||
/* taken from glibc-2.2.2: strtod.c, and stripped down a lot. There are
|
||||
still a few leftover references to decimal points and exponents,
|
||||
but it works for bases 10 and 16 */
|
||||
|
||||
#define RETURN(val,end) \
|
||||
do { if (endptr != NULL) *endptr = (char *) (end); \
|
||||
return val; } while (0)
|
||||
|
||||
Bit64u bx_strtoull (const char *nptr, char **endptr, int baseignore)
|
||||
{
|
||||
int negative; /* The sign of the number. */
|
||||
int exponent; /* Exponent of the number. */
|
||||
|
||||
/* Numbers starting `0X' or `0x' have to be processed with base 16. */
|
||||
int base = 10;
|
||||
|
||||
/* Number of bits currently in result value. */
|
||||
int bits;
|
||||
|
||||
/* Running pointer after the last character processed in the string. */
|
||||
const char *cp, *tp;
|
||||
/* Start of significant part of the number. */
|
||||
const char *startp, *start_of_digits;
|
||||
/* Total number of digit and number of digits in integer part. */
|
||||
int dig_no;
|
||||
/* Contains the last character read. */
|
||||
char c;
|
||||
|
||||
Bit64s n = 0;
|
||||
char const *p;
|
||||
|
||||
/* Prepare number representation. */
|
||||
exponent = 0;
|
||||
negative = 0;
|
||||
bits = 0;
|
||||
|
||||
/* Parse string to get maximal legal prefix. We need the number of
|
||||
characters of the integer part, the fractional part and the exponent. */
|
||||
cp = nptr - 1;
|
||||
/* Ignore leading white space. */
|
||||
do
|
||||
c = *++cp;
|
||||
while (isspace (c));
|
||||
|
||||
/* Get sign of the result. */
|
||||
if (c == '-')
|
||||
{
|
||||
negative = 1;
|
||||
c = *++cp;
|
||||
}
|
||||
else if (c == '+')
|
||||
c = *++cp;
|
||||
|
||||
if (c < '0' || c > '9')
|
||||
{
|
||||
/* It is really a text we do not recognize. */
|
||||
RETURN (0, nptr);
|
||||
}
|
||||
|
||||
/* First look whether we are faced with a hexadecimal number. */
|
||||
if (c == '0' && tolower (cp[1]) == 'x')
|
||||
{
|
||||
/* Okay, it is a hexa-decimal number. Remember this and skip
|
||||
the characters. BTW: hexadecimal numbers must not be
|
||||
grouped. */
|
||||
base = 16;
|
||||
cp += 2;
|
||||
c = *cp;
|
||||
}
|
||||
|
||||
/* Record the start of the digits, in case we will check their grouping. */
|
||||
start_of_digits = startp = cp;
|
||||
|
||||
/* Ignore leading zeroes. This helps us to avoid useless computations. */
|
||||
while (c == '0')
|
||||
c = *++cp;
|
||||
|
||||
/* If no other digit but a '0' is found the result is 0.0.
|
||||
Return current read pointer. */
|
||||
if ((c < '0' || c > '9')
|
||||
&& (base == 16 && (c < tolower ('a') || c > tolower ('f')))
|
||||
&& (base == 16 && (cp == start_of_digits || tolower (c) != 'p'))
|
||||
&& (base != 16 && tolower (c) != 'e'))
|
||||
{
|
||||
tp = start_of_digits;
|
||||
/* If TP is at the start of the digits, there was no correctly
|
||||
grouped prefix of the string; so no number found. */
|
||||
RETURN (0, tp == start_of_digits ? (base == 16 ? cp - 1 : nptr) : tp);
|
||||
}
|
||||
|
||||
/* Remember first significant digit and read following characters until the
|
||||
decimal point, exponent character or any non-FP number character. */
|
||||
startp = cp;
|
||||
dig_no = 0;
|
||||
while (1)
|
||||
{
|
||||
if ((c >= '0' && c <= '9')
|
||||
|| (base == 16 && tolower (c) >= 'a' && tolower (c) <= 'f'))
|
||||
++dig_no;
|
||||
else
|
||||
break;
|
||||
c = *++cp;
|
||||
}
|
||||
|
||||
/* The whole string is parsed. Store the address of the next character. */
|
||||
if (endptr)
|
||||
*endptr = (char *) cp;
|
||||
|
||||
if (dig_no == 0)
|
||||
return 0;
|
||||
|
||||
for (p=start_of_digits; p!=cp; p++) {
|
||||
n = n * (Bit64s)base;
|
||||
c = tolower (*p);
|
||||
c = (c >= 'a') ? (10+c-'a') : c-'0';
|
||||
n = n + (Bit64s)c;
|
||||
//printf ("after shifting in digit %c, n is %lld\n", *p, n);
|
||||
}
|
||||
return negative? -n : n;
|
||||
}
|
||||
#endif /* !BX_HAVE_STRTOULL */
|
||||
|
||||
#if BX_TEST_STRTOULL_MAIN
|
||||
/* test driver for strtoull. Do not compile by default. */
|
||||
int main (int argc, char **argv)
|
||||
{
|
||||
char buf[256], *endbuf;
|
||||
long l;
|
||||
Bit64s ll;
|
||||
while (1) {
|
||||
printf ("Enter a long int: ");
|
||||
gets (buf);
|
||||
l = strtoul (buf, &endbuf, 10);
|
||||
printf ("As a long, %ld\n", l);
|
||||
printf ("Endbuf is at buf[%d]\n", endbuf-buf);
|
||||
ll = bx_strtoull(buf, &endbuf, 10);
|
||||
printf ("As a long long, %lld\n", ll);
|
||||
printf ("Endbuf is at buf[%d]\n", endbuf-buf);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
#endif /* BX_TEST_STRTOULL_MAIN */
|
||||
|
||||
#if !BX_HAVE_STRDUP
|
||||
/* XXX use real strdup */
|
||||
char *bx_strdup(const char *str)
|
||||
{
|
||||
char *temp = (char*)malloc(strlen(str)+1);
|
||||
sprintf(temp, "%s", str);
|
||||
return temp;
|
||||
|
||||
// Well, I'm sure this isn't how strdup is REALLY implemented,
|
||||
// but it works...
|
||||
}
|
||||
#endif /* !BX_HAVE_STRDUP */
|
||||
|
||||
#if !BX_HAVE_STRREV
|
||||
char *bx_strrev(char *str)
|
||||
{
|
||||
char *p1, *p2;
|
||||
|
||||
if (! str || ! *str)
|
||||
return str;
|
||||
|
||||
for (p1 = str, p2 = str + strlen(str) - 1; p2 > p1; ++p1, --p2) {
|
||||
*p1 ^= *p2;
|
||||
*p2 ^= *p1;
|
||||
*p1 ^= *p2;
|
||||
}
|
||||
return str;
|
||||
}
|
||||
#endif /* !BX_HAVE_STRREV */
|
||||
|
||||
#if BX_WITH_MACOS
|
||||
namespace std{extern "C" {char *mktemp(char *tpl);}}
|
||||
#endif
|
||||
#if !BX_HAVE_MKSTEMP
|
||||
int bx_mkstemp(char *tpl)
|
||||
{
|
||||
mktemp(tpl);
|
||||
return ::open(tpl, O_RDWR | O_CREAT | O_TRUNC
|
||||
# ifdef O_BINARY
|
||||
| O_BINARY
|
||||
# endif
|
||||
, S_IWUSR | S_IRUSR | S_IRGRP | S_IWGRP);
|
||||
}
|
||||
#endif // !BX_HAVE_MKSTEMP
|
||||
|
||||
//////////////////////////////////////////////////////////////////////
|
||||
// Missing library functions, implemented for MacOS only
|
||||
//////////////////////////////////////////////////////////////////////
|
||||
|
||||
#if BX_WITH_MACOS
|
||||
// these functions are part of MacBochs. They are not intended to be
|
||||
// portable!
|
||||
#include <Devices.h>
|
||||
#include <Files.h>
|
||||
#include <Disks.h>
|
||||
|
||||
int fd_read(char *buffer, Bit32u offset, Bit32u bytes)
|
||||
{
|
||||
OSErr err;
|
||||
IOParam param;
|
||||
|
||||
param.ioRefNum=-5; // Refnum of the floppy disk driver
|
||||
param.ioVRefNum=1;
|
||||
param.ioPosMode=fsFromStart;
|
||||
param.ioPosOffset=offset;
|
||||
param.ioBuffer=buffer;
|
||||
param.ioReqCount=bytes;
|
||||
err = PBReadSync((union ParamBlockRec *)(¶m));
|
||||
return param.ioActCount;
|
||||
}
|
||||
|
||||
int fd_write(char *buffer, Bit32u offset, Bit32u bytes)
|
||||
{
|
||||
OSErr err;
|
||||
IOParam param;
|
||||
|
||||
param.ioRefNum=-5; // Refnum of the floppy disk driver
|
||||
param.ioVRefNum=1;
|
||||
param.ioPosMode=fsFromStart;
|
||||
param.ioPosOffset=offset;
|
||||
param.ioBuffer=buffer;
|
||||
param.ioReqCount=bytes;
|
||||
err = PBWriteSync((union ParamBlockRec *)(¶m));
|
||||
return param.ioActCount;
|
||||
}
|
||||
|
||||
int fd_stat(struct stat *buf)
|
||||
{
|
||||
OSErr err;
|
||||
DrvSts status;
|
||||
int result = 0;
|
||||
|
||||
err = DriveStatus(1, &status);
|
||||
if (status.diskInPlace <1 || status.diskInPlace > 2)
|
||||
result = -1;
|
||||
buf->st_mode = S_IFCHR;
|
||||
return result;
|
||||
}
|
||||
#endif /* BX_WITH_MACOS */
|
||||
|
||||
//////////////////////////////////////////////////////////////////////
|
||||
// New functions to replace library functions
|
||||
// with OS-independent versions
|
||||
//////////////////////////////////////////////////////////////////////
|
||||
|
||||
#if BX_HAVE_REALTIME_USEC
|
||||
#if defined(WIN32)
|
||||
static Bit64u last_realtime64_top = 0;
|
||||
static Bit64u last_realtime64_bottom = 0;
|
||||
|
||||
Bit64u bx_get_realtime64_usec(void)
|
||||
{
|
||||
Bit64u new_bottom = ((Bit64u) GetTickCount()) & BX_CONST64(0x0FFFFFFFF);
|
||||
if(new_bottom < last_realtime64_bottom) {
|
||||
last_realtime64_top += BX_CONST64(0x0000000100000000);
|
||||
}
|
||||
last_realtime64_bottom = new_bottom;
|
||||
Bit64u interim_realtime64 =
|
||||
(last_realtime64_top & BX_CONST64(0xFFFFFFFF00000000)) |
|
||||
(new_bottom & BX_CONST64(0x00000000FFFFFFFF));
|
||||
return interim_realtime64*(BX_CONST64(1000));
|
||||
}
|
||||
#elif BX_HAVE_GETTIMEOFDAY
|
||||
Bit64u bx_get_realtime64_usec(void)
|
||||
{
|
||||
timeval thetime;
|
||||
gettimeofday(&thetime,0);
|
||||
Bit64u mytime;
|
||||
mytime=(Bit64u)thetime.tv_sec*(Bit64u)1000000+(Bit64u)thetime.tv_usec;
|
||||
return mytime;
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
Reference in New Issue
Block a user