updates for msdos/go32 from Bryce Cogswell

This commit is contained in:
Joel Sherrill
1995-07-26 15:15:30 +00:00
parent c35e962218
commit 3d3a3590f8
7 changed files with 1006 additions and 26 deletions
+10 -26
View File
@@ -36,16 +36,6 @@ will go to a file rather than the screen.
The go32 debuggers get confused by the relocated stacks used by tasks,
and tend to crash when variables are inspected.
make directory
--------------
gcc-go32.cfg is used for cross compiling to the go32 environment under RTEMS,
while djgcc.cfg is used for "native" compilation; i.e. under MSDOS rather
than under RTEMS. The difference is that "native" compilation uses the djgpp
I/O libraries, while "cross" compilation uses the RTEMS I/O libraries.
djgcc.cfg is identical to gcc.cfg, except for the omission of the -pipe
option.
djgcc include files
-------------------
In general, we use RTEMS include files because these contain the proper
@@ -53,23 +43,17 @@ declarations for the libc, and in particular, the stdio functions.
When calling go32-specific functions it is necessary to include some
djgpp include files, as well. Unfortunately, there are some disagreements
between RTEMS and djgpp as to how certain functions and types are
declared. In these cases, I have modified to RTEMS source to special-
case the differences.
cpu-specific files
------------------
rtems/c/src/exec/cpu/i80386 is intended to contain 386-specific
functions for RTEMS. Since under djgpp we do not have *complete*
control of the processor, we must cooperate with the djgpp runtime
environment, this directory cannot be shared between the go32 port
and other 386 BSPs.
declared. In these cases, the RTEMS source have been modified to
special-case the differences.
other
-----
* F12 will immediately abort the program.
See libbsp/i80386/go32/iosupp/inch.c.
* Pressing F12 will immediately abort the program.
See lib/libbsp/i386/go32/console/inch.c.
* lib/libbsp/i386/go32/timer uses the on-board timer chip by default,
which has a resolution of about 1 microsecond. However, if executing
on a Pentium processor you can use the on-chip 64-bit cycle counter,
which counts at whatever clock rate your processor runs at. To enable
this, set RTEMS_CPU_MODEL=pentium in make/custom/go32.cfg.
* libbsp/i80386/go32/timer uses the on-board timer chip by default.
However, if executing on a Pentium processor you can use the on-chip
64-bit cycle counter, which counts at whatever clock rate your processor
runs at. To use this, compile with -DPENTIUM
+7
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@@ -0,0 +1,7 @@
#
# $Id$
#
ifc.exe is an MS-DOS executable which is equivalent to the program
install-if-change. It was compiled using Borland C 2.00.
+331
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@@ -0,0 +1,331 @@
/*
* $Id$
*/
#include <stdio.h>
#include <string.h>
#include <process.h>
#include <io.h>
void * xmalloc( int size )
{
void * p = (void *)malloc( size );
if ( !p ) {
fprintf( stderr, "out of memory\n" );
exit( 1 );
}
return p;
}
void * xrealloc( void * old, int size )
{
void * p = (void *)realloc( old, size );
if ( !p ) {
fprintf( stderr, "out of memory\n" );
exit( 1 );
}
return p;
}
char ** argv_fix( int * argc, char ** argv )
{
char ** new = NULL;
int max = 20;
int cnt = 0;
int j;
for ( j = 1; argv[j]; ++j )
if ( argv[j][0] == '@' && access(argv[j]+1,0)==0 )
break;
if ( argv[j] == NULL )
return argv;
new = (char **)xmalloc( max * sizeof *new );
new[cnt++] = *argv++;
for ( ; *argv; ++argv ) {
if ( cnt >= max )
new = (char **)realloc( new, (max*=2) * sizeof *new );
if ( argv[0][0] != '@' || access(argv[0]+1,0) ) {
new[cnt++] = *argv;
} else {
char line[ 1000 ];
FILE * f = fopen( argv[0]+1, "r" );
if ( !f ) {
perror( argv[0]+1 );
exit( 2 );
}
while ( fgets( line, sizeof line, f ) ) {
int len = strlen( line );
/* delete trailing newlines */
while ( line[len-1] == '\n' || line[len-1] == '\r' )
line[--len] = '\0';
if ( cnt >= max )
new = (char **)xrealloc( new, (max*=2) * sizeof *new );
new[cnt] = (char *)xmalloc( len+1 );
strcpy( new[cnt], line );
++cnt;
}
fclose( f );
}
}
if ( cnt >= max )
new = (char **)xrealloc( new, (max+1) * sizeof *new );
new[cnt] = NULL;
*argc = cnt;
return new;
}
const char * USAGE =
"usage: $progname [ -cNvmV ] file [ file ... ] dest-directory-or-file\n"
" -v -- verbose\n"
" -V suffix -- suffix to append to targets (before any . suffix)\n"
" eg: -V _g would change 'foo' to 'foo_g' and\n"
" 'libfoo.a' to 'libfoo_g.a'\n"
" -m mode -- mode for new file(s)\n"
" -c -- copy instead of move (always on)\n"
" -N -- copy only if source is newer than target\n"
;
void fatal( char * msg )
{
if ( msg )
fprintf( stderr, "%s\n", msg );
fprintf( stderr, "%s", USAGE );
exit( 1 );
}
char * basename( char * f )
{
char * b = strrchr( f, '/' );
if ( b ) ++b;
else b = f;
return b;
}
#include <sys/stat.h>
int is_dir( char * path )
{
struct stat buf;
if ( stat( path, &buf ) )
return 0;
return buf.st_mode & S_IFDIR;
}
int is_file( char * path )
{
struct stat buf;
if ( stat( path, &buf ) )
return 0;
return buf.st_mode & S_IFREG;
}
int newer( char * p1, char * p2 )
{
struct stat buf1;
struct stat buf2;
if ( stat( p1, &buf1 ) )
return 0;
if ( stat( p2, &buf2 ) )
return 0;
return buf1.st_mtime > buf2.st_mtime;
}
int filecopy( char * d, char * s, int preserve_time )
{
#if 0
int status;
char * argv[ 5 ];
argv[0] = "cp";
argv[1] = "-p";
argv[2] = s;
argv[3] = d;
argv[4] = NULL;
status = spawnvp( P_WAIT, argv[0], argv );
if ( status )
perror( "cp" );
return status;
#else
FILE * fs;
FILE * fd;
char buffer[ 8192 ];
int n;
struct ftime When;
struct stat Stat;
fs = fopen( s, "rb" );
if ( fs == NULL ) {
perror( s );
return 1;
}
fd = fopen( d, "wb" );
if ( fd == NULL ) {
perror( d );
fclose( fs );
return 2;
}
if ( preserve_time )
if ( getftime( fileno(fs), &When ) ) {
perror( s );
preserve_time = 0;
}
do {
n = fread( buffer, 1, sizeof buffer, fs );
if ( n > 0 )
if ( fwrite( buffer, 1, n, fd ) < 0 ) {
perror( d );
return 3;
}
} while ( n > 0 );
fclose( fs );
/* Fix time stamp */
if ( preserve_time )
if ( setftime( fileno(fd), &When ) ) {
perror( s );
preserve_time = 0;
}
fclose( fd );
/* Fix access rights */
if ( stat( s, &Stat ) )
perror( s );
else if ( chmod( d, Stat.st_mode ) )
perror( d );
return 0;
#endif
}
int main( int argc, char * argv[] )
{
char * progname;
int verbose = 0;
int only_if_newer= 0;
char * suffix = NULL;
char * mode = NULL;
char * dest;
char ** pp;
argv = argv_fix( &argc, argv );
progname = basename( *argv++ );
/* process the options */
while ( argv[0] && argv[0][0] == '-' ) {
switch ( argv[0][1] ) {
case 'N':
++argv;
only_if_newer = 1;
break;
case 'c':
++argv;
/* We always copy, regardless */
break;
case 'v':
++argv;
verbose = 1;
break;
case 'V':
++argv;
suffix = *argv;
++argv;
break;
case 'm':
++argv;
mode = *argv;
++argv;
break;
default:
fatal( NULL );
}
}
/* Separate source file(s) from dest directory or file */
#if 0
if ( !argv[0] || !argv[1] )
fatal( "missing files or invalid destination" );
#else
/* We used to require at least one file; not any more */
if ( !argv[0] )
fatal( "missing files or invalid destination" );
if ( !argv[1] )
return 0;
#endif
for ( pp = argv; *pp; ++pp )
continue;
--pp;
dest = *pp;
*pp = NULL;
/* Process the arguments */
for (; *argv; ++argv ) {
char * f = *argv;
char * leaf = basename( f );
char target[ 128 ];
strcpy( target, dest );
if ( is_dir( target ) ) {
strcat( target, "/" );
/* if we were given a suffix, then add it as appropriate */
if ( suffix ) {
char * dot = strchr( leaf, '.' );
if ( dot ) {
strncat( target, leaf, dot-leaf );
strcat( target, suffix );
strcat( target, dot );
if ( verbose )
printf( "%s: %s will be installed as %s",
progname, f, strrchr(target,'/')+1 );
} else {
strcat( target, leaf );
strcat( target, suffix );
}
} else {
strcat( target, leaf );
}
}
if ( access( f, 0 ) ) {
char buf[200];
sprintf( buf, "cannot read %s", f );
fatal( buf );
}
if ( only_if_newer && is_file( target ) && !newer( f, target ) ) {
if ( verbose )
printf( "'%s' not newer than '%s'\n", f, target );
continue;
}
if ( verbose )
printf( "rm -f %s\n", target );
if ( chmod( target, 0777 ) )
if ( verbose )
perror( target );
if ( unlink( target ) )
if ( verbose )
perror( target );
if ( verbose )
printf( "cp -p %s %s\n", f, target );
if ( filecopy( target, f, 1 ) )
return 1;
if ( mode ) {
char buf[ 255 ];
sprintf( buf, "chmod %s %s\n", mode, target );
if ( verbose )
printf( "%s\n", buf );
system( buf );
}
}
return 0;
}
+160
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@@ -0,0 +1,160 @@
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M*RMA<F=V.PT*"0EB<F5A:SL-"@D@(" @9&5F875L=#H-"@D)9F%T86PH($Y5
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M;&4H<RD@9G)O;2!D97-T(&1I<F5C=&]R>2!O<B!F:6QE("HO#0HC:68@, T*
M(" @(&EF("@@(6%R9W9;,%T@?'P@(6%R9W9;,5T@*0T*"69A=&%L*" B;6ES
M<VEN9R!F:6QE<R!O<B!I;G9A;&ED(&1E<W1I;F%T:6]N(B I.PT*(V5L<V4-
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M(&YO="!A;GD@;6]R92 J+PT*(" @(&EF("@@(6%R9W9;,%T@*0T*"69A=&%L
M*" B;6ES<VEN9R!F:6QE<R!O<B!I;G9A;&ED(&1E<W1I;F%T:6]N(B I.PT*
M(" @(&EF("@@(6%R9W9;,5T@*0T*"7)E='5R;B P.PT*(V5N9&EF#0H@(" @
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end
+7
View File
@@ -0,0 +1,7 @@
#
# $Id$
#
ifc.exe is an MS-DOS executable which is equivalent to the program
install-if-change. It was compiled using Borland C 2.00.
+331
View File
@@ -0,0 +1,331 @@
/*
* $Id$
*/
#include <stdio.h>
#include <string.h>
#include <process.h>
#include <io.h>
void * xmalloc( int size )
{
void * p = (void *)malloc( size );
if ( !p ) {
fprintf( stderr, "out of memory\n" );
exit( 1 );
}
return p;
}
void * xrealloc( void * old, int size )
{
void * p = (void *)realloc( old, size );
if ( !p ) {
fprintf( stderr, "out of memory\n" );
exit( 1 );
}
return p;
}
char ** argv_fix( int * argc, char ** argv )
{
char ** new = NULL;
int max = 20;
int cnt = 0;
int j;
for ( j = 1; argv[j]; ++j )
if ( argv[j][0] == '@' && access(argv[j]+1,0)==0 )
break;
if ( argv[j] == NULL )
return argv;
new = (char **)xmalloc( max * sizeof *new );
new[cnt++] = *argv++;
for ( ; *argv; ++argv ) {
if ( cnt >= max )
new = (char **)realloc( new, (max*=2) * sizeof *new );
if ( argv[0][0] != '@' || access(argv[0]+1,0) ) {
new[cnt++] = *argv;
} else {
char line[ 1000 ];
FILE * f = fopen( argv[0]+1, "r" );
if ( !f ) {
perror( argv[0]+1 );
exit( 2 );
}
while ( fgets( line, sizeof line, f ) ) {
int len = strlen( line );
/* delete trailing newlines */
while ( line[len-1] == '\n' || line[len-1] == '\r' )
line[--len] = '\0';
if ( cnt >= max )
new = (char **)xrealloc( new, (max*=2) * sizeof *new );
new[cnt] = (char *)xmalloc( len+1 );
strcpy( new[cnt], line );
++cnt;
}
fclose( f );
}
}
if ( cnt >= max )
new = (char **)xrealloc( new, (max+1) * sizeof *new );
new[cnt] = NULL;
*argc = cnt;
return new;
}
const char * USAGE =
"usage: $progname [ -cNvmV ] file [ file ... ] dest-directory-or-file\n"
" -v -- verbose\n"
" -V suffix -- suffix to append to targets (before any . suffix)\n"
" eg: -V _g would change 'foo' to 'foo_g' and\n"
" 'libfoo.a' to 'libfoo_g.a'\n"
" -m mode -- mode for new file(s)\n"
" -c -- copy instead of move (always on)\n"
" -N -- copy only if source is newer than target\n"
;
void fatal( char * msg )
{
if ( msg )
fprintf( stderr, "%s\n", msg );
fprintf( stderr, "%s", USAGE );
exit( 1 );
}
char * basename( char * f )
{
char * b = strrchr( f, '/' );
if ( b ) ++b;
else b = f;
return b;
}
#include <sys/stat.h>
int is_dir( char * path )
{
struct stat buf;
if ( stat( path, &buf ) )
return 0;
return buf.st_mode & S_IFDIR;
}
int is_file( char * path )
{
struct stat buf;
if ( stat( path, &buf ) )
return 0;
return buf.st_mode & S_IFREG;
}
int newer( char * p1, char * p2 )
{
struct stat buf1;
struct stat buf2;
if ( stat( p1, &buf1 ) )
return 0;
if ( stat( p2, &buf2 ) )
return 0;
return buf1.st_mtime > buf2.st_mtime;
}
int filecopy( char * d, char * s, int preserve_time )
{
#if 0
int status;
char * argv[ 5 ];
argv[0] = "cp";
argv[1] = "-p";
argv[2] = s;
argv[3] = d;
argv[4] = NULL;
status = spawnvp( P_WAIT, argv[0], argv );
if ( status )
perror( "cp" );
return status;
#else
FILE * fs;
FILE * fd;
char buffer[ 8192 ];
int n;
struct ftime When;
struct stat Stat;
fs = fopen( s, "rb" );
if ( fs == NULL ) {
perror( s );
return 1;
}
fd = fopen( d, "wb" );
if ( fd == NULL ) {
perror( d );
fclose( fs );
return 2;
}
if ( preserve_time )
if ( getftime( fileno(fs), &When ) ) {
perror( s );
preserve_time = 0;
}
do {
n = fread( buffer, 1, sizeof buffer, fs );
if ( n > 0 )
if ( fwrite( buffer, 1, n, fd ) < 0 ) {
perror( d );
return 3;
}
} while ( n > 0 );
fclose( fs );
/* Fix time stamp */
if ( preserve_time )
if ( setftime( fileno(fd), &When ) ) {
perror( s );
preserve_time = 0;
}
fclose( fd );
/* Fix access rights */
if ( stat( s, &Stat ) )
perror( s );
else if ( chmod( d, Stat.st_mode ) )
perror( d );
return 0;
#endif
}
int main( int argc, char * argv[] )
{
char * progname;
int verbose = 0;
int only_if_newer= 0;
char * suffix = NULL;
char * mode = NULL;
char * dest;
char ** pp;
argv = argv_fix( &argc, argv );
progname = basename( *argv++ );
/* process the options */
while ( argv[0] && argv[0][0] == '-' ) {
switch ( argv[0][1] ) {
case 'N':
++argv;
only_if_newer = 1;
break;
case 'c':
++argv;
/* We always copy, regardless */
break;
case 'v':
++argv;
verbose = 1;
break;
case 'V':
++argv;
suffix = *argv;
++argv;
break;
case 'm':
++argv;
mode = *argv;
++argv;
break;
default:
fatal( NULL );
}
}
/* Separate source file(s) from dest directory or file */
#if 0
if ( !argv[0] || !argv[1] )
fatal( "missing files or invalid destination" );
#else
/* We used to require at least one file; not any more */
if ( !argv[0] )
fatal( "missing files or invalid destination" );
if ( !argv[1] )
return 0;
#endif
for ( pp = argv; *pp; ++pp )
continue;
--pp;
dest = *pp;
*pp = NULL;
/* Process the arguments */
for (; *argv; ++argv ) {
char * f = *argv;
char * leaf = basename( f );
char target[ 128 ];
strcpy( target, dest );
if ( is_dir( target ) ) {
strcat( target, "/" );
/* if we were given a suffix, then add it as appropriate */
if ( suffix ) {
char * dot = strchr( leaf, '.' );
if ( dot ) {
strncat( target, leaf, dot-leaf );
strcat( target, suffix );
strcat( target, dot );
if ( verbose )
printf( "%s: %s will be installed as %s",
progname, f, strrchr(target,'/')+1 );
} else {
strcat( target, leaf );
strcat( target, suffix );
}
} else {
strcat( target, leaf );
}
}
if ( access( f, 0 ) ) {
char buf[200];
sprintf( buf, "cannot read %s", f );
fatal( buf );
}
if ( only_if_newer && is_file( target ) && !newer( f, target ) ) {
if ( verbose )
printf( "'%s' not newer than '%s'\n", f, target );
continue;
}
if ( verbose )
printf( "rm -f %s\n", target );
if ( chmod( target, 0777 ) )
if ( verbose )
perror( target );
if ( unlink( target ) )
if ( verbose )
perror( target );
if ( verbose )
printf( "cp -p %s %s\n", f, target );
if ( filecopy( target, f, 1 ) )
return 1;
if ( mode ) {
char buf[ 255 ];
sprintf( buf, "chmod %s %s\n", mode, target );
if ( verbose )
printf( "%s\n", buf );
system( buf );
}
}
return 0;
}
+160
View File
@@ -0,0 +1,160 @@
begin 664 ifc.exe
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